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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 144. Отображено 100.
02-02-2012 дата публикации

INCREASED FUEL ECONOMY MODE CONTROL SYSTEMS AND METHODS

Номер: US20120029787A1
Автор: Baur Andrew W., JR. Alfred E., Kaiser Jeffrey M., Li Zhong, Spitza, Whitney Christopher E.
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS, INC.

An engine control system includes a desired manifold absolute pressure (MAP) module, a MAP to torque module, a threshold determination module, and a fuel economy (FE) mode module. The desired MAP module determines a desired MAP for operation of an engine in one of a cylinder deactivation mode and a low-lift mode based on a difference between a desired vacuum and an air pressure upstream of a throttle valve. The MAP to torque module determines a desired torque output of the engine for operation in the one of the cylinder deactivation mode and the low-lift mode based on the desired MAP. The threshold determination module determines an entry torque based on the desired torque output. The FE mode module selectively triggers operation in the one of the cylinder deactivation mode and the low-lift mode based on a comparison of the entry torque and a torque request. 1. An engine control system comprising:a desired manifold absolute pressure (MAP) module that determines a desired MAP for operation of an engine in one of a cylinder deactivation mode and a low-lift mode based on a difference between a desired vacuum and an air pressure upstream of a throttle valve;a MAP to torque module that determines a desired torque output of the engine for operation in the one of the cylinder deactivation mode and the low-lift mode based on the desired MAP;a threshold determination module that determines an entry torque based on the desired torque output; anda fuel economy (FE) mode module that selectively triggers operation in the one of the cylinder deactivation mode and the low-lift mode based on a comparison of the entry torque and a torque request.2. The engine control system of further comprising:a noise, vibration, and harshness (NVH) torque determination module that determines an NVH torque,wherein an NVH value is greater than a predetermined value when an actual torque output of the engine during operation in the one of the cylinder deactivation mode and the low-lift mode is ...

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Номер записи: 1
01-03-2012 дата публикации

METHOD FOR CONTROLLING INTERNAL COMBUSTION ENGINES IN HYBRID POWERTRAINS

Номер: US20120053765A1
Автор: Heap Anthony H., Kaiser Jeffrey M., Light Dennis A., Tan Honghao, Whitney Christopher E.
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS, INC.

A method of operating a hybrid powertrain having an internal combustion engine monitors a throttle intake pressure and calculates a first torque capacity from a pressure model using the throttle intake pressure as an input. The method determines a maximum expected air mass from the monitored throttle intake pressure and calculates a second torque capacity from an air mass model using the maximum expected air mass volume as an input. The method calculates a final torque capacity as a function of the first torque capacity and the second torque capacity, and sends the final torque capacity to the hybrid control processor. An engine control module receives a torque request calculated as a function of the final torque capacity. A manifold pressure request is calculated as a function of the torque request, and a throttle is actuated as a function of the manifold pressure request. 1. A method of controlling an internal combustion engine for a hybrid vehicle , wherein the internal combustion engine has a throttle and is controlled by an engine control module , the method comprising:monitoring a throttle intake pressure;determining a maximum expected air mass from the monitored throttle intake pressure;calculating a first torque capacity from a pressure model, wherein the throttle intake pressure is an input to the pressure model;calculating a second torque capacity from an air mass model, wherein the maximum expected air mass is an input to the air mass model;calculating a final torque capacity as a function of the first torque capacity and the second torque capacity;calculating a manifold pressure request as a function of the final torque capacity; andactuating the throttle as a function of the manifold pressure request.2. The method of claim 1 , wherein the final torque capacity is further calculated as a function of a constraint factor.3. The method of claim 2 , wherein calculating the manifold pressure request includes an inverse pressure model claim 2 , wherein the ...

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Номер записи: 2
15-03-2012 дата публикации

METHOD FOR CONTROLLING INTERNAL COMBUSTION ENGINES IN HYBRID POWERTRAINS

Номер: US20120065864A1
Автор: CAWTHORNE WILLIAM R., Heap Anthony H., Kaiser Jeffrey M., Light Dennis A., Wasberg Jon C., Whitney Christopher E., Yan Weixin
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS, INC.

A method for selectively creating vacuum in a hybrid powertrain controlled by a hybrid control processor and having an engine controlled by an engine control module includes requesting a pressure differential between a first intake point and a second intake point, wherein the first intake point and the second intake point are separated by a throttle. An actual torque capacity is calculated for the engine, wherein the actual torque capacity occurs when pressure is substantially equal at the first intake point and at the second intake point. A desired torque capacity is also calculated for the engine, wherein the desired torque capacity reduces the pressure at the second intake point relative to the pressure at the first intake point, such that the requested pressure differential is created. The engine is then operated at one of the desired torque capacity and the actual torque capacity. 1. A method for selectively creating vacuum in a hybrid powertrain controlled by a hybrid control processor and having an engine controlled by an engine control module , the method comprising:requesting a pressure differential between a first intake point and a second intake point, wherein the first intake point and the second intake point are separated by a throttle;calculating an actual torque capacity for the engine, wherein the actual torque capacity occurs when pressure is substantially equal at the first intake point and at the second intake point;calculating a desired torque capacity for the engine, wherein the desired torque capacity reduces the pressure at the second intake point relative to the pressure at the first intake point, such that the requested pressure differential is created; andoperating the engine at one of the desired torque capacity and the actual torque capacity.2. The method of claim 1 , further comprising:monitoring a powertrain torque request;operating the engine at the desired torque capacity if the powertrain torque request can be met with the engine ...

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Номер записи: 3
22-03-2012 дата публикации

Torque limiting engine lubrication protection system

Номер: US20120067327A1
Автор: Christopher E. Whitney, Dennis A. Light, Jeffrey M. Kaiser, Timothy L. Gibbs, Timothy W. Athan
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A lubrication torque limit module includes a temperature module that determines a temperature of an engine and generates an engine temperature signal. A limit module generates a torque limit signal based on the temperature signal and a speed of the engine. The torque limit signal identifies an indicated torque maximum limit. A torque arbitration module limits indicated torque of the engine based on the indicated torque maximum limit. The indicated torque of the engine is equal to an unmanaged brake torque of the engine plus an overall friction torque of the engine.

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Номер записи: 4
19-07-2012 дата публикации

TURBOCHARGER BOOST CONTROL SYSTEMS AND METHODS FOR GEAR SHIFTS

Номер: US20120180759A1
Автор: Andersson Per, Gibbs Timothy L., Kaiser Jeffrey M., Whitney Christopher E.
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A method includes: retarding spark timing relative to a predetermined spark timing when an engine torque output reduction is requested for a gear shift; estimating a first torque output of an engine based on N cylinders of the engine being fueled, an engine speed, an air per cylinder (APC), and the predetermined spark timing; estimating a second torque output of the engine based on M cylinders being fueled, the engine speed, the APC, and the spark timing. determining an initial pressure ratio across a turbocharger compressor; determining an adjustment based on M and the first and second torque outputs; generating a desired pressure ratio across the turbocharger compressor based on the adjustment and the initial pressure ratio; and controlling opening of a turbocharger wastegate based on the desired pressure ratio. N is a total number of cylinders of the engine and M is less than or equal to N. 1. A system for a vehicle , comprising:a spark control module that retards spark timing relative to a predetermined spark timing when an engine torque output reduction is requested for a gear shift;a torque estimation module that estimates a first torque output of an engine based on N cylinders of the engine being fueled, an engine speed, an air per cylinder (APC), and the predetermined spark timing and that estimates a second torque output of the engine based on M cylinders being fueled, the engine speed, the APC, and the spark timing, wherein N is equal to a total number of cylinders of the engine and M is one of less than and equal to N;an initial ratio determination module that determines an initial pressure ratio across a turbocharger compressor;an adjustment determination module that determines an adjustment based on M and the first and second torque outputs;a desired ratio determination module that generates a desired pressure ratio across the turbocharger compressor based on the adjustment and the initial pressure ratio; anda boost actuator module that controls opening ...

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Номер записи: 5
21-02-2013 дата публикации

SYSTEM AND METHOD OF CONTROLLING CRANKSHAFT TORQUE DURING A TRANSMISSION SHIFT WITH TORQUE CAPACITY-BASED TORQUE REDUCTION RANGE SELECTION

Номер: US20130045832A1
Автор: Baur Andrew W., Jin Ning, Kaiser Jeffrey M., Schang Mark A., Whitney Christopher E.
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A control system for use with an engine and a transmission in a vehicle is provided that includes at least one controller having a processor with at least one stored algorithm that determines different crankshaft torque capacities associated with different respective torque actuators including a relatively slow torque actuator, such as an airflow actuator, and at least one relatively fast torque actuator, such as a spark actuator or a fuel actuator. The algorithm determines a torque actuation range over which to modify engine torque during an oncoming shift of the transmission. The torque actuation range may be based at least partially on a target gear of the upshift, desired shift duration, and a vehicle operating condition indicative of an operator intent regarding shift duration. Requests for torque modification by use of the torque actuators are then made to provide the torque actuation range. 1. A control system for use with an engine and a transmission in a vehicle comprising: determines different crankshaft torque capacities associated with different respective engine torque actuators, including a relatively slow torque actuator and at least one relatively fast torque actuator;', 'determines a torque actuation range over which to modify crankshaft torque during an oncoming shift of the transmission; and', 'requests crankshaft torque modification by use of at least one of the relatively slow torque actuator and the relatively fast torque actuator based at least partially on the torque actuation range and the crankshaft torque capacities., 'at least one controller having a processor with at least one stored algorithm that2. The control system of claim 1 , wherein the relatively slow actuator is an airflow actuator and said at least one relatively fast actuator includes a spark actuator and a fuel actuator.3. The control system of claim 2 , wherein crankshaft torque modification by use of the airflow actuator is requested prior to crankshaft torque modification ...

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Номер записи: 6
18-04-2013 дата публикации

METHOD OF CONTROLLING VEHICLE WHEEL AXLE TORQUE AND CONTROL SYSTEM FOR SAME

Номер: US20130096797A1
Автор: Abdow Danny, Durkin Thomas Richard, Jess Richard B., Whitney Christopher E.
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A method of controlling torque on a vehicle wheel axle includes comparing a torque intervention request to a predetermined minimum axle torque for a current vehicle speed and a current direction of motion of the vehicle. The predetermined minimum axle torque decreases as vehicle speed in an operator-selected direction of motion increases. An arbitrated axle torque is calculated based on an operator-requested torque, the current vehicle speed, the current direction of motion, and the greater of the torque intervention request and the predetermined minimum torque. Axle torque is applied to the vehicle's wheel axle based at least partially on the arbitrated axle torque. 1. A method of controlling torque on a wheel axle comprising:comparing at least one torque intervention request to a predetermined minimum axle torque for a current vehicle speed and a current direction of motion of the vehicle; wherein the predetermined minimum axle torque decreases as vehicle speed in an operator-selected direction of motion increases;calculating via a controller an arbitrated axle torque based on an operator-requested axle torque, the current vehicle speed, the current direction of motion, and the greater of said at least one torque intervention request and the predetermined minimum axle torque; andapplying axle torque to the wheel axle based at least partially on the arbitrated axle torque.2. The method of claim 1 , wherein the predetermined minimum axle torque is limited to a value greater than a predetermined threshold value for all vehicle speeds claim 1 , thereby limiting maximum vehicle deceleration.3. The method of claim 1 , wherein said at least one torque intervention request includes at least one of a vehicle overspeed system torque request claim 1 , a traction or stability control system torque request claim 1 , a brake torque control system torque request claim 1 , and a vehicle speed limiter system torque request.4. The method of claim 1 , wherein said predetermined ...

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Номер записи: 7
18-04-2013 дата публикации

ALTERNATOR CONTROL SYSTEMS AND METHODS FOR VEHICLE DECELERATION

Номер: US20130096810A1
Автор: Correia Josef J., Whitney Christopher E.
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A system for a vehicle includes a fuel control module and a voltage setting module. The fuel control module cuts off fuel to an engine during a deceleration fuel cutoff (DFCO) event. During the DFCO event, the voltage setting module monitors a brake pedal position, sets a desired voltage to a first predetermined voltage when a brake pedal is not depressed, and sets the desired voltage to a second predetermined voltage when the brake pedal is depressed. The second predetermined voltage is greater than the first predetermined voltage. A regulator generates a pulse width modulation (PWM) signal based on the desired voltage and applies the PWM signal to an alternator. 1. A system for a vehicle , comprising:a fuel control module that cuts off fuel to an engine during a deceleration fuel cutoff (DFCO) event; anda voltage setting module that, during the DFCO event, monitors a brake pedal position, sets a desired voltage to a first predetermined voltage when a brake pedal is not depressed, and sets the desired voltage to a second predetermined voltage when the brake pedal is depressed,wherein the second predetermined voltage is greater than the first predetermined voltage, andwherein a regulator generates a pulse width modulation (PWM) signal based on the desired voltage and applies the PWM signal to an alternator.2. The system of further comprising a triggering module that selectively generates a trigger in response to a determination that an accelerator pedal is not depressed during the DFCO event claim 1 ,wherein the voltage setting module monitors the brake pedal position and sets the desired voltage during the DFCO event in response to generation of the trigger.3. The system of further comprising:a triggering module that selectively generates a trigger during the DFCO event,wherein the voltage setting module monitors the brake pedal position and sets the desired voltage during the DFCO event in response to generation of the trigger; anda disabling module that disables ...

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Номер записи: 8
18-07-2013 дата публикации

COORDINATION OF FUEL CUTOFF FOR FAULT DETECTION AND HYBRID OPERATION

Номер: US20130184907A1
Автор: Dokter Michael John, Heap Anthony H., Levijoki Stephen Paul, Siekkinen John W., Whitney Christopher E.
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A monitoring module selectively generates a request to at least one of: transition from providing rich fueling an engine to operating the engine in a fuel cutoff (FCO) state; and transition from operating the engine in the FCO state to providing rich fueling to the engine. In response to a response to the request, the monitoring module: selectively controls fueling to the engine to perform the at least one of the transitions; and selectively determines whether a fault is present in a component based on a response to the at least one of the transitions. A hybrid control module controls an electric motor of the hybrid vehicle and that selectively generates the response. 1. A control system for a hybrid vehicle , the control system comprising: [ transition from providing rich fueling an engine to operating the engine in a fuel cutoff (FCO) state; and', 'transition from operating the engine in the FCO state to providing rich fueling to the engine; and, 'selectively generates a request to at least one of, selectively controls fueling to the engine to perform the at least one of the transitions; and', 'selectively determines whether a fault is present in a component based on a response to the at least one of the transitions; and, 'in response to a response to the request], 'a monitoring module thata hybrid control module that controls an electric motor of the hybrid vehicle and that selectively generates the response.2. The control system of wherein the hybrid control module selectively generates the response based on a driver torque request and an available motor torque.3. The control system of wherein the monitoring module generates the request when a catalyst temperature is greater than a predetermined temperature.4. The control system of wherein the monitoring module generates the request when an engine coolant temperature is greater than a predetermined temperature.5. The control system of wherein the monitoring module generates the request when a temperature of an ...

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Номер записи: 9
21-11-2013 дата публикации

AUTOMATIC TRANSMISSION SYNCHRONOUS GEAR SHIFT

Номер: US20130310219A1
Автор: Jin Ning, Knieper Christopher Harold, Van Diepen Ronald W., Whitney Christopher E., Whitton Matthew D.
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A method of commanding a synchronous gear shift begins by receiving a request to shift from a third gear to a first gear, and skipping a second gear having a gear ratio between the gear ratio of the first gear and the gear ratio of the third gear. Subsequently the method includes: reducing a torque command to a predetermined value; opening a clutch disposed on the input shaft of the transmission to decouple the transmission from the engine; transitioning the engine from a torque-control mode into a speed-control mode; commanding the engine to rotate at a speed dictated by the motion of the vehicle and the gear ratio of the first gear; closing the clutch to couple the transmission and the engine; and transitioning the engine back into the torque-control mode. 1. A method of commanding a synchronous gear shift in a vehicle powertrain that includes an engine and a transmission having a plurality of ordered gears , the method comprising:receiving a request to shift from a third gear to a first gear, and skipping a second gear having a gear ratio between the gear ratio of the first gear and the gear ratio of the third gear;reducing a torque command to a predetermined value;opening a clutch disposed on the input shaft of the transmission to decouple the transmission from the engine;transitioning the engine from a torque-control mode into a speed-control mode;commanding the engine, while in the speed-control mode, to rotate at a speed dictated by the motion of the vehicle and the gear ratio of the first gear;closing the clutch to couple the transmission and the engine; andtransitioning the engine back into the torque-control mode.2. The method of claim 1 , wherein the engine operates in response to a driver torque request while in the torque-control mode; andwherein closing the clutch to couple the transmission and the engine includes closing the clutch over a period of time such that a torque of the input shaft of the transmission is blended to match the driver torque ...

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Номер записи: 10
21-11-2013 дата публикации

AUTOMATIC TRANSMISSION INPUT CLUTCH CONTROL

Номер: US20130311055A1
Автор: Hultengren Colin, Kar Krishnendu, POCHNER Klaus, Whitney Christopher E.
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A method of controlling the performance of a vehicle from a stationary condition includes operating a vehicle powertrain in a creep mode following the disengagement of a driver-operated braking device; and operating the vehicle powertrain in a launch mode following an engagement of a driver-operated acceleration device subsequent to the disengagement of the driver-operated braking device. Operating a vehicle powertrain in a creep mode includes: applying a friction clutch to couple an engine crankshaft of the vehicle powertrain with an input shaft of the transmission; determining a torque command to accelerate the vehicle powertrain at a predetermined rate; providing the torque command to an engine controller to controllably increase the input torque to the transmission; and operating a closed loop engine speed control module to prevent the crankshaft speed from slowing below a predetermined engine idle speed. 1. A method of controlling the performance of a vehicle from a stationary condition , the method comprising:detecting the disengagement of a driver-operated braking device;applying a friction clutch to couple an engine crankshaft of the vehicle with an input shaft of the transmission;determining an open-loop torque command to accelerate the vehicle at a predetermined rate;providing the open-loop torque command to an engine controller to controllably increase the input torque to the transmission;operating a closed loop engine speed control module to prevent the crankshaft speed from slowing below a predetermined engine idle speed.2. The method of claim 1 , further comprising reducing a transmission input torque to zero if the driver-operated braking device is re-engaged.3. The method of claim 2 , further comprising disengaging the friction clutch to decouple the engine crankshaft from the input shaft of the transmission if the driver-operated braking device is re-engaged.4. The method of claim 1 , further comprising performing a speed-controlled launch if the ...

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Номер записи: 11
05-12-2013 дата публикации

HYBRID POWERTRAIN COORDINATION DURING A DIESEL PARTICULATE FILTER REGENERATION EVENT

Номер: US20130325227A1
Автор: Heap Anthony H., Scavone Luca, Whitney Christopher E.
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A hybrid diesel-electric powertrain includes an electric motor in electrical communication with a traction battery, a diesel engine in power-flow communication with the electric motor and with an automatic transmission, and a controller. The diesel engine and electric motor are configured to provide a combined torque to the automatic transmission. The powertrain further includes an exhaust aftertreatment device in fluid communication with the diesel engine. The controller is configured to: receive a regeneration request from the exhaust aftertreatment device; determine if a state-of-charge of the fraction battery is within a predetermined range of a target value; initiate a regeneration event if the state-of-charge of the traction battery is within the predetermined range of the target value; receive an immediate torque request from the automatic transmission; and provide a torque command to the electric motor in response to the immediate torque request. 1. A method of controlling a vehicle powertrain during an aftertreatment regeneration event , the powertrain including an electric motor in power-flow communication with a diesel engine , the method comprising:receiving a regeneration request;determining if a state-of-charge of a traction battery is within a predetermined range of a target value;initiating the regeneration event if the state-of-charge of the traction battery is within the predetermined range of the target value;receiving an immediate torque request; andoperating the electric motor in response to the immediate torque request.2. The method of claim 1 , wherein initiating the regeneration event includes increasing the ratio of fuel-to-air provided to the diesel engine to a level greater than a stoichiometric balance.3. The method of claim 1 , wherein the immediate torque request is provided by a transmission control module in response to a request for an automatic gear change; andwherein the immediate torque request is a negative torque request ...

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Номер записи: 12
05-12-2013 дата публикации

HYBRID DIESEL-ELECTRIC POWERTRAIN SMOKE LIMIT AVOIDANCE

Номер: US20130325228A1
Автор: Heap Anthony H., Scavone Luca, Whitney Christopher E.
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A hybrid diesel-electric powertrain includes a diesel engine in power flow communication with an electric motor and a controller. The diesel engine and electric motor are each configured to generate a respective torque in response to a provided torque command. The controller is in communication with the electric motor, the diesel engine, and an accelerator pedal, and configured to receive a driver torque request from the accelerator pedal. In response to the driver torque request, the controller is further configured to command the diesel engine to generate an output torque that is less than a smoke limit torque, and command the electric motor to generate an output torque equal to the difference between the driver torque request and the output torque of the diesel engine. 1. A method of controlling a vehicle powertrain having an electric motor in power-flow communication with a diesel engine , the method comprising:receiving a driver torque request;smoothing the driver torque request;commanding the diesel engine to generate an output torque that is less than a smoke limit torque; andcommanding the electric motor to generate an output torque equal to the difference between the smoothed driver torque request and the output torque of the diesel engine.2. The method of claim 1 , further comprising optimizing the torque commanded of the diesel engine and of the electric motor such that the torque commanded of the diesel engine is less than an efficiency limit torque when the torque commanded of the electric motor is less than a maximum torque limit; andwherein the efficiency limit torque is less than the smoke limit torque by a predetermined amount.3. The method of claim 2 , wherein the torque commanded of the diesel engine is greater than the efficiency limit torque and less than the smoke limit torque when the torque commanded of the electric motor is equal to a maximum torque limit.4. The method of claim 1 , wherein the driver torque request is provided via the ...

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Номер записи: 13
05-12-2013 дата публикации

CONTROL ARCHITECTURE FOR A MULTI-MODE POWERTRAIN SYSTEM

Номер: US20130325233A1
Автор: Heap Anthony H., Livshiz Michael, MCGROGAN SEAN W., WHITEHEAD KIANA, Whitney Christopher E.
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A controller architecture for a vehicle including a multi-mode powertrain system includes an engine controller having a control routine for determining and executing engine torque commands responsive to a hybrid engine torque command, and a control routine for determining a propulsion axle torque command responsive to an output torque request. The controller architecture further includes transmission controller having a control routine for selecting and effecting operation of the passive transmission in a preferred gear responsive to the output torque request. The controller architecture further includes a hybrid controller having control routines for determining and executing torque commands for each of the non-combustion torque machines and for determining the hybrid engine torque command to achieve a desired axle torque in response to the propulsion axle torque command with the passive transmission operating in the preferred gear. 1. A control architecture for a vehicle comprising a multi-mode powertrain system including an internal combustion engine mechanically coupled to a single input member of a passive transmission having a single output member , said output member mechanically coupled to a primary drive wheel , and non-combustion torque machines mechanically coupled to selected ones of the internal combustion engine , the single input member , the single output member and a secondary drive wheel , the architecture comprising:an engine controller operatively connected to the internal combustion engine, including a control routine for determining and executing engine torque commands responsive to a hybrid engine torque command, and a control routine for determining a propulsion axle torque command responsive to an output torque request;a transmission controller operatively connected to the passive transmission, including a control routine for selecting and effecting operation of the passive transmission in a preferred gear responsive to the output torque ...

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Номер записи: 14
13-03-2014 дата публикации

COORDINATED ENGINE TORQUE CONTROL

Номер: US20140074373A1
Автор: Hartrey Timothy J., Kaiser Jeffrey M., Karnjate Timothy M., Livshiz Michael, Whitney Christopher E., York Gregory J.
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A control system for an engine includes a target air per cylinder (APC) module, a target area module, and a phaser scheduling module. The target APC module determines a target APC based on a target spark timing, a target intake cam phaser angle, and a target exhaust cam phaser angle. The target area module determines a target opening of a throttle valve of the engine based on the target spark timing, the target intake cam phaser angle, and the target exhaust cam phaser angle. The target area module controls the throttle valve based on the target opening. The phaser scheduling module determines the target intake and exhaust cam phaser angles based on the target APC. The phaser scheduling module controls intake and exhaust cam phasers of the engine based on the target intake and exhaust cam phaser angles, respectively. 1. A control system for an engine , comprising:a target air per cylinder (APC) module that determines a target APC based on a target spark timing, a target intake cam phaser angle, and a target exhaust cam phaser angle;a target area module that determines a target opening of a throttle valve of the engine based on the target spark timing, the target intake cam phaser angle, and the target exhaust cam phaser angle and that controls the throttle valve based on the target opening; anda phaser scheduling module that determines the target intake and exhaust cam phaser angles based on the target APC and that controls intake and exhaust cam phasers of the engine based on the target intake and exhaust cam phaser angles, respectively.2. The control system of further comprising:a target manifold absolute pressure (MAP) module that determines a target MAP based on the target spark timing, the target intake cam phaser angle, and the target exhaust cam phaser angle; anda boost scheduling module that determines a target duty cycle of a wastegate of a turbocharger based on the target MAP and that controls the wastegate of the turbocharger based on the target duty ...

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Номер записи: 15
20-03-2014 дата публикации

AIRFLOW CONTROL SYSTEMS AND METHODS

Номер: US20140076279A1
Автор: Hysko, JR. Gerald J., Kaiser Jeffrey M., Livshiz Michael, Song B. Jerry, White David A., Whitney Christopher E.
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

An engine control system for a vehicle, includes a delay and rate limit module, a throttle control module, a phaser control module, and an exhaust gas recirculation (EGR) control module. The delay and rate limit module applies a delay and a rate limit to a first torque request to produce a second torque request. The throttle control module determines a target throttle opening based on the second torque request and selectively adjusts a throttle valve based on the target throttle opening. The phaser control module determines target intake and exhaust phasing values based on the second torque request and selectively adjusts intake and exhaust valve phasers based on the target intake and exhaust phasing values, respectively. The EGR control module determines a target EGR opening based on the first torque request and selectively adjusts an EGR valve based on the target EGR opening. 1. An engine control system for a vehicle , comprising:a delay and rate limit module that applies a delay and a rate limit to a first torque request to produce a second torque request;a throttle control module that determines a target throttle opening based on the second torque request and that selectively adjusts a throttle valve based on the target throttle opening;a phaser control module that determines target intake and exhaust phasing values based on the second torque request and that selectively adjusts intake and exhaust valve phasers based on the target intake and exhaust phasing values, respectively; andan exhaust gas recirculation (EGR) control module that determines a target EGR opening based on the first torque request and that selectively adjusts an EGR valve based on the target EGR opening.2. The engine control system of further comprising an adjustment module that determines a first torque adjustment based on a product of a first predetermined value and a difference between the second torque request and an estimated torque output of the engine claim 1 , that determines a second ...

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Номер записи: 16
10-04-2014 дата публикации

METHOD OF CONTROLLING CATALYST LIGHT-OFF OF A HYBRID VEHICLE

Номер: US20140100728A1
Автор: Ellenberger J. Michael, Hattar Rafat F., Hutmacher Jeffrey M., Nicholson James B., Whitney Christopher E.
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A method of warming a catalyst of an exhaust gas treatment system of a hybrid vehicle includes transitioning a rotational speed of an engine to within a pre-defined speed range with an electric motor, and reducing an engine manifold pressure to within a pre-defined pressure range. The engine is fueled after the rotational speed of the engine is within the pre-defined speed range, and the engine manifold pressure is within the pre-defined pressure range. While the engine is being fueled, the engine manifold pressure is increased to within a catalyst light-off pressure range, and the torque output of the engine is increased to within a catalyst light-off operating torque range. The exhaust gas produced from the operation of the engine within the pre-defined speed range, within the catalyst light-off pressure range, and within the catalyst light-off operating torque range heats the catalyst while minimizing emissions. 1. A method of warming a catalyst of an exhaust gas treatment system of a hybrid vehicle having an engine and an electric motor , the method comprising:transitioning a rotational speed of the engine to within a pre-defined speed range with the electric motor;reducing an engine manifold pressure to within a pre-defined pressure range;fueling the engine after the rotational speed of the engine is within the pre-defined speed range and the engine manifold pressure is within the pre-defined pressure range;increasing the engine manifold pressure to within a catalyst light-off pressure range while the engine is being fueled; andincreasing torque output of the engine to within a catalyst light-off operating torque range while the engine is being fueled;wherein exhaust gas produced from the operation of the engine within the pre-defined speed range, within the catalyst light-off pressure range, and within the catalyst light-off operating torque range heats the catalyst while minimizing emissions.2. A method as set forth in wherein fueling the engine is further ...

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Номер записи: 17
03-02-2022 дата публикации

Secondary Throttle Control Systems and Methods

Номер: US20220034269A1
Автор: Burleigh Darrell W., Gallon Robert, Picot Nathan M., RAFTOPOULOS Andrew A., RAMAPPAN Vijay A., SLEPICKA Craig E., Smith Michael A., Whitney Christopher E.
Принадлежит:

An engine system includes: a first throttle valve; a turbocharger compressor disposed downstream of the first throttle valve; a charge air cooler disposed downstream of the turbocharger compressor; a second throttle valve located downstream of the turbocharger compressor; a purge inlet located downstream of the first throttle valve and configured to introduce fuel vapor from a fuel tank into intake air; and an engine control module configured to: maintain the first throttle valve in a fully open position; and selectively close the first throttle valve relative to the fully open position in response to receipt of a request to at least one of: purge fuel vapor from the fuel tank; and at least one of decrease and prevent icing of the charge air cooler. 1. An engine system , comprising:a first throttle valve;a turbocharger compressor disposed downstream of the first throttle valve;a charge air cooler disposed downstream of the turbocharger compressor;a second throttle valve located downstream of the turbocharger compressor;a purge inlet located downstream of the first throttle valve and configured to introduce fuel vapor from a fuel tank into intake air; and maintain the first throttle valve in a fully open position; and', 'selectively close the first throttle valve from the fully open position in response to receipt of a request to purge the fuel vapor from the fuel tank., 'an engine control module configured to2. The engine system of wherein the engine system does not include a purge pump configured to pump the fuel vapor from the fuel tank to the purge inlet.3. The engine system of wherein the charge air cooler is an air-to-air charge air cooler.4. The engine system of wherein the engine control module is further configured to selectively close the first throttle valve relative to the fully open position in response to receipt of a request to decrease air induction noise.5. The engine system of wherein the engine control module is further configured to selectively ...

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Номер записи: 18
19-01-2017 дата публикации

INTAKE MANIFOLD AND CYLINDER AIRFLOW ESTIMATION SYSTEMS AND METHODS

Номер: US20170016407A1
Автор: Cygan, Hattar Rafat F., Jin Ning, JR. Gary Robert, MATTHEWS GREGORY P., Whitney Christopher E., Wiggins Layne K.
Принадлежит:

An engine control system includes a prediction module that, during an exhaust stroke of a first cylinder of an engine, determines a predicted intake manifold pressure at an end of a next intake stroke of a second cylinder following the first cylinder in a firing order of the cylinders. An air per cylinder (APC) module determines a predicted mass of air that will be trapped within the second cylinder at the end of the next intake stroke of the second cylinder based on the predicted intake manifold pressure. A fueling module controls fueling of the second cylinder during the next intake stroke based on the predicted mass of air. 1. An engine control system comprising:a prediction module that, during an exhaust stroke of a first cylinder of an engine, determines a predicted intake manifold pressure at an end of a next intake stroke of a second cylinder following the first cylinder in a firing order of the cylinders;an air per cylinder (APC) module that determines a predicted mass of air that will be trapped within the second cylinder at the end of the next intake stroke of the second cylinder based on the predicted intake manifold pressure; anda fueling module that controls fueling of the second cylinder during the next intake stroke based on the predicted mass of air.2. The engine control system of wherein the fueling module controls fueling of the second cylinder during the next intake stroke further based on a target air/fuel mixture.3. The engine control system of wherein the prediction module determines the predicted intake manifold pressure during the exhaust stroke of the first cylinder when a piston of the first cylinder of reaches a predetermined position during the exhaust stroke.4. The engine control system of wherein the prediction module determines the predicted intake manifold pressure based on differences between a mass air flowrate into an intake manifold and a mass air flowrate out of the intake manifold determined during a predetermined period before ...

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Номер записи: 19
29-01-2015 дата публикации

DIESEL ENGINE STEADY STATE AND TRANSIENT HYBRID OPTIMIZATION

Номер: US20150032308A1
Автор: Heap Anthony H., HEISLER CORNELIUS, Scavone Luca, Whitney Christopher E.
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A method for selecting an engine operating point in a multi-mode powertrain system includes monitoring a desired axle torque based on an operator torque request and vehicle speed. For each available combustion mode of the diesel engine, engine torque and speed ranges are received and a plurality of fuel losses and a plurality of emissions losses are retrieved, each fuel and emissions loss corresponding to respective ones of a plurality of engine operating points within the engine torque and speed ranges. The respective fuel and emissions losses are compared at each of a plurality of potential engine operating points within the engine torque and speed ranges of the available combustion modes. A desired engine operating point within one of the available combustion modes is selected that corresponds to one of the potential engine operating points having a lowest power loss based on the compared respective fuel and emissions losses. 1. Method for selecting an engine operating point in a multi-mode powertrain system employing a diesel engine and one or more non-combustion torque machines arranged to transfer torque to a driveline via a transmission device , the method comprising:monitoring a desired axle torque based on an operator torque request and vehicle speed;monitoring availability of a plurality of combustion modes of the diesel engine; receiving an engine torque range from a minimum engine torque to a maximum engine torque,', 'receiving an engine speed range from a minimum engine speed to a maximum engine speed,', 'retrieving a plurality of fuel losses, each fuel loss corresponding to respective ones of a plurality of engine operating points within the engine torque and speed ranges,', 'retrieving a plurality of emissions losses, each emissions loss corresponding to respective ones of the plurality of engine operating points within the engine torque and speed ranges, and, 'for each available combustion modeat each of a plurality of potential engine operating ...

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Номер записи: 20
08-05-2014 дата публикации

THROTTLE CONTROL SYSTEMS AND METHODS FOR REDUCING INDUCTION NOISE

Номер: US20140123938A1
Автор: Kaiser Jeffrey M., Whitney Christopher E.
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A throttle control system includes a target pressure module, a torque determination module, and a target opening module. The target pressure module determines an induction noise value based on an engine operating parameter and determines a target pressure downstream of a throttle valve of an engine based on a pressure at an inlet of the throttle valve and the induction noise value. The torque determination module determines a torque request for the engine based on the target pressure. The target opening module determines a target opening for the throttle valve based on the torque request and selectively adjusts opening of the throttle valve based on the target opening. 1. A throttle control system , comprising:a target pressure module that determines an induction noise value based on an engine operating parameter and that determines a target pressure downstream of a throttle valve of an engine based on a pressure at an inlet of the throttle valve and the induction noise value;a torque determination module that determines a torque request for the engine based on the target pressure; anda target opening module that determines a target opening for the throttle valve based on the torque request and that selectively adjusts opening of the throttle valve based on the target opening.2. The throttle control system of wherein the target pressure module determines the induction noise value based on an engine speed.3. The throttle control system of wherein the target pressure module sets the induction noise value to a first predetermined value when the engine speed is greater than a predetermined speed and sets the induction noise value to a second predetermined value when the engine speed is less than the predetermined speed.4. The throttle control system of wherein the first predetermined value is greater than the second predetermined value.5. The throttle control system of wherein the target opening module sets the target opening to a first value when the induction noise ...

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Номер записи: 21
14-02-2019 дата публикации

METHOD TO PERFORM INTAKE CAM LIFT STATE TRANSITIONS

Номер: US20190048806A1
Автор: HAYDEN David N., Whitney Christopher E.
Принадлежит:

A method of transitioning between two intake valve lift states while providing constant engine torque output comprehends the steps of receiving a lift change request from an engine control device, determining the current phase angles of the camshafts, and determining whether the intake and exhaust camshafts are at transition positions. The transition positions are experimentally or empirically determined combinations of operating conditions that result in constant engine torque output before and after the intake valve lift transition. If they are, an appropriate, i.e., low to high or high to low cam lift state transition of the intake valves occurs. If they are not, the cam phasers move the intake and exhaust camshafts to transition positions. When the cam phasers have moved the intake and exhaust camshafts to the transition positions, i.e., positions of constant engine torque output, the intake valve lift transitions from high to low or low to high. 1. A method of transitioning between two intake valve lift states in an internal combustion engine , comprising the steps of:providing an instruction to shift an intake valve lift state from a first state to a second state,determining current angular positions of an intake cam and an exhaust cam,determining if an intake cam and an exhaust cam are in angular positions wherein the instructed shift will result in constant engine torque output before and after the commanded shift,adjusting a phase of the intake cam and the exhaust cam to provide constant torque before and after the instructed shift.commanding an intake cam transition from a first lift state to a second lift state.2. The method of transitioning between two intake valve lift states of wherein the instruction to shift the intake valve lift state is generated in an engine control module.3. The method of transitioning between two intake valve lift states of further including the step of retarding engine spark when commanding the intake cam transition.4. The ...

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Номер записи: 22
12-05-2016 дата публикации

Throttle Control Systems And Methods Based On Pressure Ratio

Номер: US20160131061A1
Автор: POCHNER Klaus, Verdejo Julian R., Whitney Christopher E.
Принадлежит:

A torque requesting module generates a torque request for an engine based on driver input. A model predictive control (MPC) module: identifies sets of possible target values based on the torque request, each of the sets of possible target values including target pressure ratios across a throttle valve; determines predicted operating parameters for the sets of possible target values, respectively; determines cost values for the sets of possible target values, respectively; selects one of the sets of possible target values based on the cost values; and sets target values based on the possible target values of the selected one of the sets, respectively, the target values including a target pressure ratio across the throttle valve. A target area module determines a target opening area of the throttle valve based on the target pressure ratio. A throttle actuator module controls the throttle valve based on the target opening. 1. An engine control system of a vehicle , comprising:a torque requesting module that generates a torque request for an engine based on driver input; identifies sets of possible target values based on the torque request, each of the sets of possible target values including target pressure ratios across a throttle valve;', 'determines predicted operating parameters for the sets of possible target values, respectively;', 'determines cost values for the sets of possible target values, respectively;', 'selects one of the sets of possible target values based on the cost values; and', 'sets target values based on the possible target values of the selected one of the sets, respectively, the target values including a target pressure ratio across the throttle valve;, 'a model predictive control (MPC) module thata target area module that determines a target opening area of the throttle valve based on the target pressure ratio; anda throttle actuator module that controls the throttle valve based on the target opening.2. The engine control system of further ...

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Номер записи: 23
18-06-2015 дата публикации

METHOD AND APPARATUS FOR CONTROLLING AN INTERNAL COMBUSTION ENGINE DURING A COMBUSTION TRANSITION

Номер: US20150166037A1
Автор: Bergkoetter Brenton J., MCGROGAN SEAN W., Spohn Brian L., Whitney Christopher E.
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A method for operating an internal combustion engine includes increasing engine drag torque, transitioning from a cylinder deactivation state to an all-cylinder state, and decreasing engine drag torque immediately subsequent to transitioning to the all-cylinder state. 1. Method for operating an internal combustion engine , comprising:increasing engine drag torque;transitioning from a cylinder deactivation state to an all-cylinder state; anddecreasing engine drag torque immediately subsequent to transitioning to the all-cylinder state.2. The method of claim 1 , wherein increasing the engine drag torque comprises increasing the engine drag torque to a predetermined level.3. The method of claim 1 , wherein increasing engine drag torque comprises closing an engine throttle to a low state.4. The method of claim 1 , wherein increasing engine drag torque comprises controlling a variable engine valve lift control system to restrict engine airflow.5. The method of claim 4 , wherein controlling the variable engine valve lift control system to restrict engine airflow comprises controlling the variable engine valve lift control system to a low-lift engine valve state.6. The method of claim 1 , wherein increasing engine drag torque comprises controlling a variable cam phasing system to restrict engine airflow.7. The method of claim 6 , wherein controlling the variable cam phasing system to restrict engine airflow comprises controlling the variable cam phasing system to control cam phasing of the engine to eliminate engine valve overlap.8. The method of claim 1 , further comprising executing an engine autostop subsequent to said transitioning to the all-cylinder state.9. The method of claim 1 , further comprising executing an engine autostop subsequent to transitioning to the all-cylinder state10. Method for operating a powertrain system claim 1 , comprising:operating the powertrain system in one of a coasting mode and a braking mode, including controlling an internal combustion ...

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Номер записи: 24
18-06-2015 дата публикации

METHOD AND APPARATUS FOR TORQUE ARBITRATION AND SHAPING IN A MULTI-MODE POWERTRAIN SYSTEM

Номер: US20150166038A1
Автор: Heap Anthony H., Whitney Christopher E.
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A method for operating a multi-mode powertrain system includes monitoring an operator request for tractive power, and arbitrating the operator request for tractive power with axle torque constraints and crankshaft torque constraints. An immediate tractive torque request and a predicted tractive torque request are determined based upon the arbitrated operator request for tractive power. The predicted tractive torque request is shaped based upon driveability torque constraints. Operation of torque-generative devices of the multi-mode powertrain system are controlled based upon the predicted tractive torque request and the driveability-shaped predicted tractive torque request. 1. Method for operating a multi-mode powertrain system , comprising:monitoring an operator request for tractive power;arbitrating the operator request for tractive power with axle torque constraints and crankshaft torque constraints;determining an immediate tractive torque request and a predicted tractive torque request based upon the arbitrated operator request for tractive power;shaping the predicted tractive torque request based upon driveability torque constraints; andcontrolling operation of torque-generative devices of the multi-mode powertrain system based upon the predicted tractive torque request and the driveability-shaped predicted tractive torque request.2. The method of claim 1 , wherein controlling operation of torque-generative devices of the multi-mode powertrain system based upon the predicted tractive torque request and the driveability-shaped predicted tractive torque request is effected when the immediate tractive torque request is inactive.3. The method of claim 1 , further comprising controlling operation of the torque-generative devices based upon the predicted tractive torque request and the immediate tractive torque request when the immediate tractive torque request is active.4. The method of claim 1 , wherein determining the immediate tractive torque request based upon ...

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Номер записи: 25
18-09-2014 дата публикации

ADAPTIVE CRUISE CONTROL SYSTEM AND METHOD INCORPORATING REGENERATIVE BRAKING AND START-STOP FUNCTIONS

Номер: US20140277989A1
Автор: "OLEARY Patrick J.", Bassey Kiana, Klemmer Matthew J., KRUEGER ERIC E., Whitney Christopher E.
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A system according to the principles of the present disclosure includes a cruise control module, an engine control module, and a brake control module. The cruise control module determines a cruise torque request based on at least one of a following distance of a vehicle and a rate at which the vehicle is approaching an object. The engine control module determines a negative torque capacity of a powertrain. The powertrain includes an engine and an electric motor. The brake control module applies a friction brake when the cruise torque request is less than the negative torque capacity of the powertrain. 1. A system comprising:a cruise control module that determines a cruise torque request based on at least one of a following distance of a vehicle and a rate at which the vehicle is approaching an object;an engine control module that determines a negative torque capacity of a powertrain, wherein the powertrain includes an engine and an electric motor; anda brake control module that applies a friction brake when the cruise torque request is less than the negative torque capacity of the powertrain.2. The system of wherein the cruise control module includes a desired deceleration module that determines a desired deceleration based on the at least one of the following distance and the approach rate.3. The system of wherein the brake control module controls a pressure of fluid supplied to the friction brake based on the desired deceleration.4. The system of wherein the cruise control module includes a powertrain torque request module that determines a powertrain torque request based on the cruise torque request and the negative torque capacity of the powertrain.5. The system of wherein the powertrain torque request module adjusts the powertrain torque request to the cruise torque request when the cruise torque request is greater than the negative torque capacity of the powertrain.6. The system of wherein the powertrain torque request module adjusts the powertrain torque ...

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Номер записи: 26
23-07-2015 дата публикации

DIESEL ENGINE AFTERTREATMENT HEATING AND CLEANING HYBRID OPERATION

Номер: US20150203100A1
Автор: Heap Anthony H., HEISLER CORNELIUS, Leu Alexander, Scavone Luca, Whitney Christopher E.
Принадлежит:

A method for selecting an engine operating point in a multi-mode powertrain system includes monitoring a desired axle torque based on an operator torque request and vehicle speed. When an aftertreatment device used to purify regulated constituents within an exhaust gas feedstream output from the engine is determined to require an exhaust gas feedstream temperature to be increased to a predetermined temperature, an intrusive engine operation mode is enabled to increase the exhaust gas feedstream temperature to the predetermined temperature. A plurality of engine power is retrieved, wherein each engine power loss corresponds to respective ones of a plurality of intrusive engine operation points each achieving the predetermined temperature of the exhaust gas feedstream. A desired engine operation point is selected corresponding to one of the intrusive engine operation points having a lowest total power loss. 1. Method for selecting an engine operating point in a multi-mode powertrain system employing a diesel engine and one or more electric machines arranged to transfer torque to a driveline via a transmission device , the method comprising:monitoring a desired axle torque based on an operator torque request and vehicle speed; enabling an intrusive engine operating mode to increase the exhaust gas feedstream temperature to the predetermined temperature;', 'retrieving a plurality of engine power losses based on the enabled intrusive engine operating mode, each engine power loss corresponding to respective ones of a plurality of intrusive engine operating points each achieving the predetermined temperature of the exhaust gas feedstream; and', 'selecting a desired engine operating point corresponding to one of the intrusive engine operating points having a lowest total power loss., 'when an aftertreatment device used to purify regulated constituents within an exhaust gas feedstream output from the engine is determined to require an exhaust gas feedstream temperature to be ...

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Номер записи: 27
30-07-2015 дата публикации

METHOD AND APPARATUS FOR CONTROLLING A TORQUE CONVERTER CLUTCH IN A MULTI-MODE POWERTRAIN SYSTEM

Номер: US20150210262A1
Автор: HEARLD SCOTT A., Horgan Jeremy V., MITCHELL JOHN S., Whitney Christopher E.
Принадлежит:

A powertrain system includes an internal combustion engine rotatably coupled to a non-combustion torque machine and a torque converter which is rotatably coupled to an input member of a transmission. A method for operating the powertrain system includes operating the torque converter in a controlled slip operating state and controlling a torque converter clutch capacity in response to a driver requested braking torque. Target torque outputs from the engine and from the torque machine are determined in response to the driver requested braking torque subjected to a time delay. A torque modifier for the torque machine is determined in response to a torque converter clutch slip error. Torque output from the engine is controlled in response to the target torque output from the engine, and torque output from the torque machine is controlled in response to the target torque output and the torque modifier from the torque machine. 1. A method for operating a powertrain system comprising an internal combustion engine rotatably coupled to a torque converter rotatably coupled to an input member of a transmission , said engine rotatably coupled to a non-combustion torque machine , the method comprising:operating the torque converter in a controlled slip operating state and controlling a torque converter clutch capacity in response to a driver requested braking torque;determining a target torque output from the engine and a target torque output from the torque machine in response to the driver requested braking torque subjected to a time delay;determining a torque modifier for the torque machine in response to a torque converter clutch slip error;controlling torque output from the engine in response to the target torque output from the engine; andcontrolling torque output from the torque machine in response to the target torque output and the torque modifier from the torque machine.2. The method of claim 1 , wherein the torque converter comprises a fluidic two-pass torque ...

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Номер записи: 28
02-08-2018 дата публикации

METHOD TO DETERMINE REFERENCE AIRFLOW ACTUATOR POSITIONS FOR A GASOLINE ENGINE

Номер: US20180216563A1
Автор: Cygan, HAYDEN David N., JR. Gary Robert, Levijoki Stephen P., Whitney Christopher E.
Принадлежит:

A method to determine reference actuator positions for a gasoline engine, includes entering a base torque request, a known spark advance, a known CAM position and a known exhaust gas recirculation (EGR) valve position into an inverse torque model to generate a first iteration desired air per cylinder (APC) value. The first iteration desired APC value is passed through a deadband filter to produce a filtered first iteration desired APC signal. A Predicted As Cal (PAC) spark advance is calculated for the filtered first iteration desired APC value. The PAC spark advance and the base torque request are modified, and data from a first lookup table is entered to generate a second iteration desired APC value. 1. A method to determine reference actuator positions for a gasoline engine , including:entering a base torque request into an inverse torque model to generate a first iteration desired air per cylinder (APC) value;calculating a Predicted As Cal (PAC) spark advance for the first iteration desired APC value;modifying the first iteration desired APC value to generate a second iteration desired APC value by entering the PAC spark advance, the base torque request, and data from at least one lookup table into the inverse torque model; anddetermining at least one actuator reference position using data from a second lookup table and the second iteration desired APC value.2. The method to determine reference actuator positions for a gasoline engine of claim 1 , further including adding during the entering step a known spark advance.3. The method to determine reference actuator positions for a gasoline engine of claim 2 , further including adding during the entering step a known CAM position.4. The method to determine reference actuator positions for a gasoline engine of claim 3 , further including adding during the entering step a known exhaust gas recirculation (EGR) valve position.5. The method to determine reference actuator positions for a gasoline engine of claim 4 , ...

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Номер записи: 29
23-10-2014 дата публикации

AIRFLOW CONTROL SYSTEMS AND METHODS USING MODEL PREDICTIVE CONTROL

Номер: US20140311446A1
Автор: Chen Jyh-Shin, GENSLAK ROBERT J., Jin Ning, Whitney Christopher E., Wong Kevin C.
Принадлежит:

A torque requesting module generates a first torque request for a spark ignition engine based on driver input. A torque conversion module converts the first torque request into a second torque request. A setpoint module generates setpoints for the spark ignition engine based on the second torque request. A model predictive control (MPC) module: identifies sets of possible target values based on the setpoints; generates predicted parameters based on a model of the spark ignition engine and the sets of possible target values, respectively; selects one of the sets of possible target values based on the predicted parameters; and sets target values based on the possible target values of the selected one of the sets. A first constraint module selectively sets a predetermined range for first one of the target values. The MPC module limits the first one of the target values to within the predetermined range. 1. An engine control system for a vehicle , comprising:a torque requesting module that generates a first torque request for a spark ignition engine based on driver input;a torque conversion module that converts the first torque request into a second torque request;a setpoint module that generates air and exhaust setpoints for the spark ignition engine based on the second torque request;a model predictive control (MPC) module that identifies sets of possible target values based on the air and exhaust setpoints, that generates predicted parameters based on a model of the spark ignition engine and the sets of possible target values, respectively, that selects one of the sets of possible target values based on the predicted parameters, and that sets target values based on the possible target values of the selected one of the sets;a first constraint module that selectively sets a predetermined range for first one of the target values,wherein the MPC module limits the first one of the target values to within the predetermined range; anda throttle actuator module that controls ...

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Номер записи: 30
23-10-2014 дата публикации

AIRFLOW CONTROL SYSTEMS AND METHODS USING MODEL PREDICTIVE CONTROL

Номер: US20140316681A1
Автор: Storch Sharon L., Whitney Christopher E.
Принадлежит:

A torque requesting module generates a first torque request for a spark ignition engine based on driver input. A torque conversion module converts the first torque request into a second torque request. A setpoint control module, based on the second torque request, generates a mass of air per cylinder (APC) setpoint, an exhaust gas recirculation (EGR) setpoint, an intake valve phasing setpoint, and an exhaust valve phasing setpoint. A model predictive control (MPC) module: identifies sets of possible target values based on the APC, EGR, intake valve phasing, and exhaust valve phasing setpoints; generates predicted parameters based on a model of the spark ignition engine and the sets of possible target values, respectively; selects one of the sets of possible target values based on the predicted parameters; and sets target values based on the possible target values of the selected one of the sets. 1. An engine control system for a vehicle , comprising:a torque requesting module that generates a first torque request for a spark ignition engine based on driver input;a torque conversion module that converts the first torque request into a second torque request;a setpoint control module that, based on the second torque request, generates a mass of air per cylinder (APC) setpoint, an exhaust gas recirculation (EGR) setpoint, an intake valve phasing setpoint, and an exhaust valve phasing setpoint;a model predictive control (MPC) module that identifies sets of possible target values based on the APC, EGR, intake valve phasing, and exhaust valve phasing setpoints, that generates predicted parameters based on a model of the spark ignition engine and the sets of possible target values, respectively, that selects one of the sets of possible target values based on the predicted parameters, and that sets target values based on the possible target values of the selected one of the sets; anda throttle actuator module that controls opening of a throttle valve based on a first one of ...

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Номер записи: 31
23-10-2014 дата публикации

AIRFLOW CONTROL SYSTEMS AND METHODS USING MODEL PREDICTIVE CONTROL

Номер: US20140316682A1
Автор: Chen Jyh-Shin, GENSLAK ROBERT J., Whitney Christopher E.
Принадлежит:

A torque requesting module generates a first torque request for a spark ignition engine based on driver input. A torque conversion module converts the first torque request into a second torque request. A setpoint control module generates setpoints for the spark ignition engine based on the second torque request. A vacuum requesting module requests an amount of vacuum within an intake manifold of the engine. The setpoint module selectively adjusts at least one of the setpoints based on the amount of vacuum requested. A model predictive control (MPC) module: identifies sets of possible target values based on the setpoints; generates predicted parameters based on a model of the spark ignition engine and the sets of possible target values, respectively; selects one of the sets of possible target values based on the predicted parameters; and sets target values based on the possible target values of the selected one of the sets. 1. An engine control system for a vehicle , comprising:a torque requesting module that generates a first torque request for a spark ignition engine based on driver input;a torque conversion module that converts the first torque request into a second torque request;a setpoint control module that generates air and exhaust setpoints for the spark ignition engine based on the second torque request;a vacuum requesting module that requests an amount of vacuum within an intake manifold of the engine,wherein the setpoint module selectively adjusts at least one of the air and exhaust setpoints based on the amount of vacuum requested;a model predictive control (MPC) module that identifies sets of possible target values based on the air and exhaust setpoints, that generates predicted parameters based on a model of the spark ignition engine and the sets of possible target values, respectively, that selects one of the sets of possible target values based on the predicted parameters, and that sets target values based on the possible target values of the ...

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Номер записи: 32
23-10-2014 дата публикации

AIRFLOW CONTROL SYSTEMS AND METHODS USING MODEL PREDICTIVE CONTROL

Номер: US20140316683A1
Автор: NAHRA PAUL R., Verdejo Julian R., Whitney Christopher E., Wong Kevin C.
Принадлежит:

A torque requesting module generates a first torque request for a spark ignition engine based on driver input. A torque conversion module converts the first torque request into a second torque request. A setpoint control module generates air and exhaust setpoints for the spark ignition engine based on the second torque request. A model predictive control (MPC) module identifies sets of possible target values based on the air and exhaust setpoints, generates predicted parameters based on a model of the spark ignition engine and the sets of possible target values, respectively, selects one of the sets of possible target values based on the predicted parameters, and sets target values based on the possible target values of the selected one of the sets. A throttle actuator module controls opening of a throttle valve based on a first one of the target values. 1. An engine control system for a vehicle , comprising:a torque requesting module that generates a first torque request for a spark ignition engine based on driver input;a torque conversion module that converts the first torque request into a second torque request;a setpoint control module that generates air and exhaust setpoints for the spark ignition engine based on the second torque request;a model predictive control (MPC) module that identifies sets of possible target values based on the air and exhaust setpoints, that generates predicted parameters based on a model of the spark ignition engine and the sets of possible target values, respectively, that selects one of the sets of possible target values based on the predicted parameters, and that sets target values based on the possible target values of the selected one of the sets; anda throttle actuator module that controls opening of a throttle valve based on a first one of the target values.2. The engine control system of further comprising:a boost actuator module that controls opening of a wastegate based on a second one of the target values;an exhaust gas ...

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Номер записи: 33
16-08-2018 дата публикации

METHOD OF CONTROLLING CAMSHAFT PHASE BASED ON HUMIDITY

Номер: US20180230864A1
Автор: HAYDEN David N., Levijoki Stephen P., Pisu Nicola, Whitney Christopher E.
Принадлежит:

A method of phasing the opening and closing of internal combustion engine intake and exhaust valves relative to the rotation of the crankshaft is based upon changes in engine speed, engine load and ambient relative humidity. During certain conditions of higher humidity, in order to maintain good combustion stability and thus overall engine operation, it is necessary to reduce intake and exhaust valve overlap by adjusting the phase of the intake and exhaust camshafts. This is achieved by utilizing a set of cam position reference values and constraints based upon engine speed, engine load and humidity that are contained in lookup tables that adjust and limit cam position and valve overlap. Generally speaking, in order to maintain optimum engine performance, intake and exhaust valve overlap is reduced with higher ambient humidity and vice versa. 1. A method of controlling intake and exhaust cam phase in an internal combustion engine , comprising the steps of:sensing an engine speed and engine load of the internal combustion engine.sensing relative humidity of air delivered to the internal combustion engine,utilizing the engine speed, the engine load and the humidity in a lookup table to determine minimum and maximum intake cam phaser constraint values and minimum and maximum exhaust cam phaser constraint values, andadvancing the exhaust cam phase maximum retard constraint and retarding the intake cam phase maximum advance constraint as the sensed relative humidity increases.2. The method of including the further steps of sensing temperature of coolant in the internal combustion engine and adjusting the advancing and retarding of the cam phase constraint values based upon the temperature of the coolant.3. The method of wherein the lookup table is three dimensional.4. The method of including the further step of retarding the exhaust cam phase maximum retard constraint and advancing the intake cam phase maximum advance constraint as the sensed relative humidity decreases. ...

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Номер записи: 34
16-08-2018 дата публикации

METHOD TO SELECT OPTIMAL MODE ON A MULTI-MODE ENGINE WITH CHARGING

Номер: US20180230927A1
Автор: Deffenbaugh Michael, HAYDEN David N., Whitney Christopher E.
Принадлежит:

A control method for selecting an optimal multiple step operating mode for a multiple cylinder motor vehicle engine system having variable lift includes prioritizing each of a full torque capacity (FTC) mode having all cylinders operating at high lift, a first reduced capacity economy mode (RCE1) having all cylinders operating at low lift, and a second reduced capacity economy mode (RCE2) having fewer than all of the cylinders operating at low lift with at least one cylinder deactivated based on predicted fuel economy of each of the modes. Multiple constraints are applied to each of the prioritized modes including incorporating boost as one of the constraints by calculating a maximum torque capacity for each mode that is a function of a current boost pressure. A mode determination arbitration is conducted to identify if a change in mode is required. 1. A control method for selecting an optimal multiple-step operating mode for a motor vehicle engine system , comprising:providing at least two variable capacity modes of operation, the at least two variable capacity modes of operation including modes combining variable valve lift per cylinder and modes defining cylinder deactivation;prioritizing the at least two variable capacity modes based on fuel efficiency;applying torque constraint data and noise and vibration (NV) constraint data to the prioritized variable capacity modes; andconducting a mode determination arbitration for the prioritized variable capacity modes having the torque constraint and the vibration constraint data applied to identify if a change in mode is required.2. The control method for selecting an optimal multiple step operating mode for a motor vehicle engine system of claim 1 , wherein the at least two variable capacity modes include a first mode defining a full torque capacity (FTC) mode having all cylinders operating at high lift claim 1 , a second mode defining a first reduced capacity economy mode (RCE1) having all cylinders operating at low ...

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Номер записи: 35
23-08-2018 дата публикации

TORQUE SECURITY OF MPC-BASED POWERTRAIN CONTROL

Номер: US20180238257A1
Автор: Livshiz Michael, Pattipati Bharath, Whitney Christopher E., Worthing James L.
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A propulsion system, control system, and method are provided that use model predictive control to generate an initial selected engine output torque value. A minimum torque limit is determined by selecting a minimum acceptable engine output torque. A maximum torque limit is determined by selecting a maximum acceptable engine output torque. A desired engine output torque value is set as: a) the minimum torque limit, if the initial selected engine output torque value is less than the minimum torque limit; b) the maximum torque limit, if the initial selected engine output torque value is greater than the maximum torque limit; or c) the initial selected engine output torque value, if the initial selected engine output torque value is neither greater than the maximum torque limit nor less than the minimum torque limit. 1. A method for controlling a propulsion system of a motor vehicle , the method comprising:determining an initial selected engine output torque value using a model predictive control system;determining at least one of a first minimum acceptable engine output torque and a second minimum acceptable engine output torque, the first minimum acceptable engine output torque being based on an engine output torque requested and a predetermined engine output torque minimum constant, and the second minimum acceptable engine output torque being based on an axle torque requested and a predetermined axle torque minimum constant;determining a minimum torque limit by selecting one of the first and second minimum acceptable engine output torques;determining whether the initial selected engine output torque value is less than the minimum torque limit;if the initial selected engine output torque value is less than the minimum torque limit, setting a desired engine output torque value as the minimum torque limit;determining at least one of a first maximum acceptable engine output torque and a second maximum acceptable engine output torque, the first maximum acceptable engine ...

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Номер записи: 36
01-10-2015 дата публикации

ENGINE CONTROL SYSTEMS AND METHODS FOR TRANSMISSION UPSHIFTS

Номер: US20150275711A1
Автор: GENSLAK ROBERT J., Jin Ning, Whitney Christopher E., Wong Kevin C.
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

For an upshift of a transmission, a model predictive control (MPC) module sets target intake and exhaust valve timings for changes in a torque request that occur during the upshift. A phaser actuator module controls intake valve phasing of an engine based on the target intake valve timing and controls exhaust valve phasing based on the target exhaust valve timing. 1. An engine control system for a vehicle , comprising:a reference module that sets at least one of a reference intake valve timing and a reference exhaust valve timing for an upshift of a transmission; identifies sets of possible target values based on an engine torque request, each of the possible sets including a possible target intake valve timing and a possible target exhaust valve timing;', 'selects one of the sets of possible target values based on (i) comparisons of the possible target intake valve timings of the sets with the reference intake valve timing and (ii) comparisons of the possible target exhaust valve timings of the sets with the reference exhaust valve timing;', 'sets a target intake valve timing based on the possible target intake valve timing of the selected one of the sets; and', 'sets a target exhaust valve timing based on the possible target exhaust valve timing of the selected one of the sets; and, 'a model predictive control (MPC) module thata phaser actuator module that controls intake valve phasing of an engine based on the target intake valve timing and that controls exhaust valve phasing of the engine based on the target exhaust valve timing.2. The engine control system of wherein claim 1 , during a predetermined period before a torque phase of the upshift claim 1 , the reference module sets at least one of the reference intake valve timing and the reference exhaust valve timing based on a first amount of intake and exhaust valve overlap and a first volumetric efficiency.3. The engine control system of wherein claim 2 , during the torque phase of the upshift claim 2 , the ...

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Номер записи: 37
01-10-2015 дата публикации

Engine control systems and methods for future torque request increases

Номер: US20150275771A1
Автор: POCHNER Klaus, Whitney Christopher E.
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

An engine control method includes: generating a torque request for an engine based on a driver input; and based on the torque request, controlling: opening of a wastegate of a turbocharger; opening of a throttle valve based on the torque request; and an intake valve phaser and an exhaust valve phaser. The engine control method also includes selectively determining an expected future increase in the torque request. The engine control method also includes, based on the expected future increase and before the torque request increases based on the expected future increase: decreasing the opening of the wastegate; and at least one of: decreasing the opening of the throttle valve; and adjusting at least one of the intake valve phaser and the exhaust valve phaser to decrease a volumetric efficiency of the engine. 1. An engine control system of a vehicle , comprising:a torque requesting module that generates a torque request for an engine based on a driver input;an air control module that controls opening of a wastegate of a turbocharger and opening of a throttle valve based on the torque request; anda future request module that selectively determines an expected future increase in the torque request,wherein, based on the expected future increase and before the torque request increases based on the expected future increase, the air control module decreases the opening of the wastegate and the opening of the throttle valve.2. The engine control system of wherein the air control module increases the opening of the throttle valve when the torque request increases based on the expected future increase.3. The engine control system of wherein claim 1 , when the torque request increases based on the expected future increase claim 1 , the air control module increases the opening of the throttle valve and maintains the opening of the wastegate.4. The engine control system of wherein the future request module determines the expected future increase for engagement of an air ...

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Номер записи: 38
01-10-2015 дата публикации

MODEL PREDICTIVE CONTROL SYSTEMS AND METHODS FOR INTERNAL COMBUSTION ENGINES

Номер: US20150275772A1
Автор: BEMPORAD ALBERTO, BERNARDINI DANIELE, Cygan, Jin Ning, JR. Gary Robert, Long Ruixing, Verdejo Julian R., Whitney Christopher E.
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

An engine control method includes: generating a first predicted engine output torque and a first predicted mass of air per cylinder (APC) based on a model of the spark ignition engine and a first set of possible target values determined based on an engine torque request; generating a second predicted engine output torque and a second predicted mass of APC based on the model of the spark ignition engine and a second set of possible target values determined based on the engine torque request; determining a first cost for the first set of possible target values; determining a second cost for the second set of possible target values; selecting one of the first and second sets based on the first and second costs; and setting target values based on the possible target values of the selected one of the first and second sets. 1. An engine control system for a vehicle , comprising:a prediction module that generates a first predicted engine output torque and a first predicted mass of air per cylinder (APC) based on a model of the spark ignition engine and a first set of possible target values determined based on an engine torque request and that generates a second predicted engine output torque and a second predicted mass of APC based on the model of the spark ignition engine and a second set of possible target values determined based on the engine torque request; determines a first cost for the first set of possible target values based on a first predetermined weighting value, the first predicted engine output torque, the engine torque request, a second predetermined weighting value, and the first predicted mass of APC; and', 'determines a second cost for the second set of possible target values based on the first predetermined weighting value, the second predicted engine output torque, the engine torque request, the second predetermined weighting value, and the second predicted mass of APC;, 'a cost module thata selection module that selects one of the first and second sets ...

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Номер записи: 39
01-10-2015 дата публикации

SYSTEM AND METHOD FOR MANAGING THE PERIOD OF A CONTROL LOOP FOR CONTROLLING AN ENGINE USING MODEL PREDICTIVE CONTROL

Номер: US20150275783A1
Автор: BEMPORAD ALBERTO, BERNARDINI DANIELE, Whitney Christopher E., Wong Kevin C.
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A system according to the present disclosure includes a model predictive control (MPC) module, an actuator module, and a remedial action module. The MPC module performs MPC tasks that include predicting operating parameters for a set of possible target values and determining a cost for the set of possible target values based on the predicted operating parameters. The MPC tasks also include selecting the set of possible target values from multiple sets of possible target values based on the cost and setting target values to the possible target values of the selected set. The actuator module controls an actuator of an engine based on at least one of the target values. The remedial action module selectively takes a remedial action based on at least one of an amount of time that elapses as the MPC tasks are performed and a number of iterations of the MPC tasks that are performed. 1. A system comprising: determining predicted operating parameters for a set of possible target values;', 'determining a cost for the set of possible target values based on the predicted operating parameters;', 'selecting the set of possible target values from multiple sets of possible target values based on the cost; and', 'setting target values to the possible target values of the selected set;, 'a model predictive control (MPC) module that performs MPC tasks includingan actuator module that controls an actuator of an engine based on at least one of the target values; anda remedial action module that selectively takes a remedial action based on at least one of an amount of time that elapses as the MPC tasks are performed and a number of iterations of the MPC tasks that are performed.2. The system of wherein the remedial action module instructs the MPC module to suspend the MPC tasks when the elapsed time is greater than a first period.3. The system of wherein:the remedial action module instructs the MPC module to resume the MPC tasks when other tasks are complete; andthe other tasks have less ...

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Номер записи: 40
01-10-2015 дата публикации

System and method for adjusting a torque capacity of an engine using model predictive control

Номер: US20150275784A1
Автор: Alberto Bemporad, Christopher E. Whitney, Daniele Bernardini, Gary Robert Cygan, JR., Kevin C. Wong
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A system according to the principles of the present disclosure includes a desired capacity module, an anticipated torque request module, and an engine actuator module. The desired capacity module generates a desired torque capacity of an engine at a future time based on a present torque request and a maximum torque output of the engine. The anticipated torque request module generates an anticipated torque request based on the desired torque capacity. The engine actuator module controls an actuator of the engine at a present time based on the anticipated torque request.

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Номер записи: 41
01-10-2015 дата публикации

NON-MODEL PREDICTIVE CONTROL TO MODEL PREDICTIVE CONTROL TRANSITIONS

Номер: US20150275786A1
Автор: Chen Jyh-Shin, Jin Ning, Whitney Christopher E., Wong Kevin C.
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

An engine control system for a vehicle may include a sequence determination module that generates a first set of possible MPC target values and a second set of possible MPC target values. A cost module determines a first cost for the first set of possible MPC target values and a second cost for the second set of possible MPC target values. A selection module that selects MPC target values from one of the first and second sets of possible MPC target values based on the first and second costs. A transition module that receives the MPC target values, compares the MPC target values with a plurality of previous control requests, and selects a set of target values ranging from the previous control requests to the MPC target values that control a plurality of engine functions. 1. An engine control system for a vehicle , comprising:a sequence determination module that generates a first set of possible MPC target values and a second set of possible MPC target values;a cost module that determines a first cost for the first set of possible MPC target values and a second cost for the second set of possible MPC target values;a selection module that selects MPC target values from one of the first set of possible MPC target values and the second set of possible MPC target values based on the first cost and the second cost, respectively; anda transition module that receives the MPC target values, compares the MPC target values with a plurality of control requests that control a vehicle, and selects a set of target values ranging from the plurality of control requests to the MPC target values, wherein the set of target values control a plurality of engine functions.2. The engine control system of claim 1 , further comprising a state determination module having a state estimator.3. The engine control system of claim 2 , wherein the state estimator is in a cold start state if the state determination module becomes active within a time less than a time threshold and the state estimator ...

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Номер записи: 42
01-10-2015 дата публикации

ARTIFICIAL OUTPUT REFERENCE FOR MODEL PREDICTIVE CONTROL

Номер: US20150275789A1
Автор: BEMPORAD ALBERTO, BERNARDINI DANIELE, Cygan, JR. Gary Robert, Verdejo Julian R., Whitney Christopher E.
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A control system includes a control module that receives a first request corresponding to a control value for at least one of a plurality of actuators, selectively receives a second request associated with a predicted future control value for at least one of the plurality of actuators, determines a target value for the actuator based on the first request if the second request was not received, and generates a reference signal representing the second request if the second request was received. The reference signal indicates at least one of a predicted increase in the control value and a predicted decrease in the control value. A model predictive control module receives the reference signal and adjusts one of the plurality of actuators associated with the predicted future control value based on the reference signal. 1. A control system , comprising: receives a first request corresponding to a control value for at least one of a plurality of actuators,', 'selectively receives a second request associated with a predicted future control value for at least one of the plurality of actuators,', 'if the second request was not received, determines a target value for the actuator based on the first request, and', 'if the second request was received, generates a reference signal representing the second request, wherein the reference signal indicates at least one of a predicted increase in the control value and a predicted decrease in the control value; and, 'a control module that'}a model predictive control module that receives the reference signal and adjusts one of the plurality of actuators associated with the predicted future control value based on the reference signal.2. The control system of claim 1 , wherein the reference signal corresponds to the first request plus or minus an offset indicated by the second request.3. The control system of claim 1 , wherein control module determines the reference signal based on the first request and the second request.4. The control ...

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Номер записи: 43
01-10-2015 дата публикации

MODEL PREDICTIVE CONTROL SYSTEMS AND METHODS FOR FUTURE TORQUE CHANGES

Номер: US20150275796A1
Автор: Cygan, JR. Gary Robert, POCHNER Klaus, Whitney Christopher E.
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A prediction module, based on a set of possible target values for M future times and a model of an engine, determines predicted torques of the engine for the M future times, respectively. M is an integer greater than one. A cost module determines a cost for the set of possible target values based on comparisons of the predicted torques for the M future times with engine torque requests for the M future times, respectively. A selection module, based on the cost, selects the set of possible target values from a group including the set of possible target values and N other sets of possible target values, wherein N is an integer greater than zero, and sets target values based on the selected set of possible target values. An actuator module controls an engine actuator based on a first one of the target values. 1. An engine control system of a vehicle , comprising:a prediction module that, based on a set of possible target values for M future times and a model of an engine, determines predicted torques of the engine for the M future times, respectively,wherein M is an integer greater than one;a cost module that determines a cost for the set of possible target values based on comparisons of the predicted torques for the M future times with engine torque requests for the M future times, respectively;a selection module that, based on the cost, selects the set of possible target values from a group including the set of possible target values and N other sets of possible target values, wherein N is an integer greater than zero, and that sets target values based on the selected set of possible target values; andan actuator module that controls an engine actuator based on a first one of the target values.2. The engine control system of wherein:based on the set of possible target and the model of the engine, the prediction module further determines a predicted fuel efficiency of the engine; andthe cost module determines the cost for the set of possible target values further ...

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Номер записи: 44
01-10-2015 дата публикации

DIAGNOSTIC SYSTEMS AND METHODS USING MODEL PREDICTIVE CONTROL

Номер: US20150275806A1
Автор: GENSLAK ROBERT J., Whitney Christopher E.
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A fuel control module transitions engine fueling from rich to lean. A catalyst fault detection module diagnoses whether a fault is present in an exhaust catalyst based on a response of an oxygen sensor to the transition. A prediction module generates a prediction based on a model and a set of possible target values. A cost module determines a cost for the set of possible target values based on comparisons of the prediction with minimum and maximums. Before the transition, a constraint module selectively adjusts at least one of the minimum and maximums for the fault diagnosis. Based on the cost, a selection module selects the set of possible target values from a group of sets of possible target values and sets target values based on the selected set of possible target values. An actuator module controls an engine actuator based on a first one of the target values. 1. An engine control system for a vehicle , comprising:a fuel control module that transitions fueling of an engine from fuel rich to fuel lean;a catalyst fault detection module that diagnoses whether a fault is present in an exhaust catalyst based on a response of an oxygen sensor to the transition, wherein the oxygen sensor is located one of upstream and downstream from the exhaust catalyst;a prediction module that generates a predicted operating parameter of the engine based on a model of the engine and a set of possible target values determined based on an engine torque request;a cost module that determines a cost for the set of possible target values based on comparisons of the predicted operating parameter with predetermined minimum and maximum values;a constraint module that, before the transition, selectively adjusts at least one of the predetermined minimum and maximum values for the fault diagnosis;a selection module that, based on the cost, selects the set of possible target values from a group including the set of possible target values and N other sets of possible target values determined based ...

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Номер записи: 45
04-12-2014 дата публикации

SYSTEM AND METHOD FOR CONTROLLING A POWERTRAIN SYSTEM TO PERFORM EXHAUST BRAKING

Номер: US20140358400A1
Автор: BARBERO Simone, HAINES TRENTON W., Jozefowicz Kelly T., Marlett Chad E., Scavone Luca, Whitney Christopher E.
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A system according to the principles of the present disclosure includes an exhaust braking enabling module, a driver torque module, and an engine actuator control module. The exhaust braking enabling module selectively enables exhaust braking based on driver input and independent of an accelerator pedal position. The driver torque module selectively determines a driver torque request based on a powertrain braking torque capacity when exhaust braking is enabled. The engine actuator control module controls fuel delivery to cylinders of an engine and a vane position of a turbocharger based on the driver torque request. 1. A system comprising:an exhaust braking enabling module that selectively enables exhaust braking based on driver input and independent of an accelerator pedal position;a driver torque module that selectively determines a driver torque request based on a powertrain braking torque capacity when exhaust braking is enabled; andan engine actuator control module that controls fuel delivery to cylinders of an engine and a vane position of a turbocharger based on the driver torque request.2. The system of further comprising a zero pedal torque module that determines a zero pedal torque based on the powertrain braking torque capacity claim 1 , wherein the driver torque module selectively determines the driver torque request based on the zero pedal torque when the accelerator pedal position is greater than zero.3. The system of wherein the driver torque module:determines a pedal torque request based on the accelerator pedal position; anddetermines the driver torque request based on the zero pedal torque when the accelerator pedal position is greater than zero and the pedal torque request is less than a first torque required to prevent a decrease in vehicle speed when traveling on a flat grade.4. The system of wherein the driver torque module sets the driver torque request equal to the pedal torque request when the pedal torque request is greater than or equal to ...

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Номер записи: 46
01-10-2015 дата публикации

Fault diagnostic systems and methods for model predictive control

Номер: US20150279124A1
Автор: Christopher E. Whitney, Kevin C. Wong
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A model predictive control (MPC) module: identifies sets of possible target values based on an engine torque request; determines predicted operating parameters for the sets of possible target values, respectively; determines cost values for the sets of possible target values, respectively; selects one of the sets of possible target values based on the cost values; and sets target values based on the possible target values of the selected one of the sets. An actuator module controls an engine actuator based on one of the target values. A fault diagnostic module selectively diagnoses a fault in the MPC module.

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Номер записи: 47
27-09-2018 дата публикации

COORDINATION OF TORQUE INTERVENTIONS IN MPC-BASED POWERTRAIN CONTROL

Номер: US20180274453A1
Автор: BEMPORAD ALBERTO, BERNARDINI DANIELE, Livshiz Michael, Pattipati Bharath, Whitney Christopher E.
Принадлежит:

A propulsion system, control system, and method are provided for optimizing fuel economy, which use model predictive control systems to generate a plurality of sets of possible command values and determine a cost for each set of possible command values of based on a first predetermined weighting value, a second predetermined weighting value, a plurality of predicted values, and a plurality of requested values. The set of possible command values having the lowest cost is determined and defined as a set of selected command values. Arbitration is performed including at least one of the following: A) determining at least one requested value based on arbitrating between a driver requested value and an intervention requested value; and B) determining a desired command value by arbitrating between a selected command value of the set of selected command values and a command intervention value. 1. A method for controlling a propulsion system of a motor vehicle , the method comprising:generating a plurality of sets of possible command values;determining a cost for each set of possible command values of the plurality of sets of possible command values based on a first predetermined weighting value, a second predetermined weighting value, a plurality of predicted values, and a plurality of requested values;determining which set of possible command values of the plurality of sets of possible command values has a lowest cost; andselecting the set of possible command values that has the lowest cost to define a set of selected command values;performing an arbitration step comprising at least one of the following arbitration procedures A and B:A) determining at least one requested value of the plurality of requested values based on arbitrating between a driver requested value and an intervention requested value; andB) determining a desired command value by arbitrating between a selected command value of the set of selected command values and a command intervention value; ...

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Номер записи: 48
27-09-2018 дата публикации

METHOD OF CAM PHASE CONTROL BASED ON CYLINDER WALL TEMPERATURE

Номер: US20180274473A1
Автор: HAYDEN David N., Levijoki Stephen P., Whitney Christopher E.
Принадлежит:

A method of controlling intake and exhaust cam phase in an internal combustion engine includes sensing an engine speed and an engine load of the internal combustion engine, sensing or estimating a wall temperature of a cylinder of the internal combustion engine, utilizing the engine speed and the engine load in one or more lookup tables based on the cylinder wall temperature to determine intake phaser constraint values and exhaust phaser constraint values for cold operation of the internal combustion engine, and transitioning the intake phaser constraint values and the exhaust phaser constraint values for cold operation to intake phaser constraint values and exhaust phaser constraint values based on one or more lookup tables for normal hot operation of the internal combustion engine. 1. A method of controlling intake and exhaust cam phase in an internal combustion engine , the method comprising:sensing an engine speed and an engine load of the internal combustion engine;sensing or estimating a wall temperature of a cylinder of the internal combustion engine;utilizing the engine speed and the engine load in one or more lookup tables based on the wall temperature to determine intake phaser constraint values and exhaust phaser constraint values for cold operation of the internal combustion engine; andtransitioning the intake phaser constraint values and the exhaust phaser constraint values for cold operation to intake phaser constraint values and exhaust phaser constraint values based on one or more lookup tables for normal hot operation of the internal combustion engine.2. The method of wherein the lookup tables for cold operation and the lookup tables for normal operation are two dimensional lookup tables.3. The method of wherein the one or more lookup tables for cold operation are four lookup tables.4. The method of wherein the one or more lookup tables for normal hot operation are four lookup tables.5. The method of wherein the four lookup tables for cold operation ...

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Номер записи: 49
11-10-2018 дата публикации

METHOD AND SYSTEM TO DETECT AND MITIGATE SENSOR DEGRADATION

Номер: US20180291832A1
Автор: Gilbert Marcus S., Hutmacher Jeffrey M., Whitney Christopher E., Wong Kevin C.
Принадлежит:

A method to detect and mitigate sensor degradation in an automobile system includes: collecting output signal data from at least one of a sensor and an actuator which is outputting the signal data related to operational parameters of a vehicle system; placing the sensor or the actuator in communication with a fault box used to purposely corrupt the output signal data; analyzing patterns of the output signal data compared to signal data from a nominal operating sensor or actuator using an artificial intelligence program; identifying when a statistical range of the patterns exceeds a first threshold level; and modifying a control signal to change the operational parameters of the vehicle system. 1. A method to detect and mitigate sensor degradation in an automobile system , comprising:collecting an output signal data from at least one device which is outputting the signal data related to operational parameters of a vehicle system;analyzing patterns of the output signal data compared to signal data from a nominal operating device;identifying when the patterns exceed a threshold level indicating the at least one device is operating in a degraded condition; andmodifying a control signal to change the operational parameters of the vehicle system.2. The method to detect and mitigate sensor degradation in an automobile system of claim 1 , further including analyzing patterns of the output signal data using an artificial intelligence program.3. The method to detect and mitigate sensor degradation in an automobile system of claim 2 , further including introducing corrupted data into the at least one device.4. The method to detect and mitigate sensor degradation in an automobile system of claim 3 , further including collecting the corrupted data and the output signal data from the at least one device in an artificial intelligence fault predictor.5. The method to detect and mitigate sensor degradation in an automobile system of claim 4 , further including identifying a range of ...

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Номер записи: 50
15-12-2016 дата публикации

System And Method For Controlling Actuators Of An Engine To Adjust Intake Airflow When The Engine Is Starting

Номер: US20160363063A1
Автор: POCHNER Klaus, Whitney Christopher E.
Принадлежит:

A system according to the principles of the present disclosure includes a target area module and a throttle actuator module. The target area module determines a target opening area of a throttle valve of an engine based on a first target pressure within an intake manifold of the engine when the engine is starting. The throttle actuator module actuates the throttle valve based on the target opening area. 1. A system comprising:a target area module that determines a target opening area of a throttle valve of an engine based on a first target pressure within an intake manifold of the engine when the engine is starting; anda throttle actuator module that actuates the throttle valve based on the target opening area.2. The system of wherein the first target pressure is predetermined.3. The system of further comprising a target pressure ratio module that determines a first target pressure ratio across a throttle valve of an engine based on the first target pressure within the intake manifold and a throttle inlet air pressure claim 1 , wherein the target area module determines the target opening area of the throttle valve based on the first target pressure ratio when the engine is starting.4. The system of wherein claim 3 , after the engine is started claim 3 , the target area module selectively determines the target opening area of the throttle valve based on the first target pressure ratio for a first period.5. The system of wherein the target area module determines the first period based on an engine oil temperature and a pressure measured within the intake manifold of the engine.6. The system of comprising:a torque requesting module that generates a torque request for the engine based on at least one of a driver input and a target engine speed; and identifies sets of possible target values based on the torque request, each of the sets of possible target values including a target pressure ratio across the throttle valve;', 'predicts operating parameters of the engine for ...

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Номер записи: 51
14-12-2017 дата публикации

SYSTEM AND METHOD FOR PREDICTING A PEDAL POSITION BASED ON DRIVER BEHAVIOR AND CONTROLLING ONE OR MORE ENGINE ACTUATORS BASED ON THE PREDICTED PEDAL POSITION

Номер: US20170356350A1
Автор: Chang Chen-Fang, Li Shifang, Wang Yue-Yun, Whitney Christopher E.
Принадлежит:

A system according to the principles of the present disclosure includes a pedal position prediction module and an engine actuator control module. The pedal position prediction module predicts a pedal position at a future time based on driver behavior and vehicle driving conditions. The pedal position includes at least one of an accelerator pedal position and a brake pedal position. The engine actuator control module controls an actuator of an engine based on the predicted pedal position. 1. A system comprising:a pedal position prediction module that predicts a pedal position at a future time based on driver behavior, and vehicle driving conditions, and the pedal position at a current time, wherein the pedal position includes at least one of an accelerator pedal position and a brake pedal position;an engine actuator control module that controls an actuator of an engine based on the predicted pedal position; anda pedal position probability module that determines P probabilities of P possible nonzero values of the pedal position at the future time based on the pedal position at the current time, the driver behavior, and the vehicle driving conditions, wherein:the pedal position prediction module sets the predicted pedal position equal to one of the P possible nonzero values of the pedal position corresponding to a highest one of the P probabilities; andP is an integer greater than one.2. The system of further comprising a driver identification module that identifies a driver of a vehicle claim 1 , wherein the pedal position prediction module determines the driver behavior based on the driver identification.3. The system of further comprising a driver behavior module that transmits driver behavior data associated with the driver identification to a remote server and retrieves the driver behavior data from the remote server based on the driver identification claim 2 , wherein the pedal position prediction module determines the driver behavior based on the driver ...

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Номер записи: 52
21-12-2017 дата публикации

PROPULSION SYSTEM CONTROL WITH MPC

Номер: US20170361842A1
Автор: BEMPORAD ALBERTO, BERNARDINI DANIELE, Livshiz Michael, Whitney Christopher E., Wong Kevin C.
Принадлежит:

A propulsion system, control system, and method are provided for optimizing fuel economy, which use model predictive control systems to generate first and second predicted actual axle torques and first and second predicted actual fuel consumption rates based on first and second sets of possible command values, respectively. The sets of possible command values include commanded engine output torques and commanded transmission ratios. First and second costs are determined for the first and second sets of possible command values, respectively, based on a first predetermined weighting value, a second predetermined weighting value, the first and second predicted actual axle torques, respectively, the first and second predicted actual fuel consumption rates, respectively, an axle torque requested, an engine output torque requested, a transmission ratio requested, and a fuel consumption rate requested. One of the first and second sets of possible command values is selected and set based on the lower cost. 1. A method for controlling a propulsion system of a motor vehicle , the method comprising:generating a first predicted actual axle torque and a first predicted actual fuel consumption rate based on a first set of possible command values, the first set of possible command values including a first commanded engine output torque and a first commanded transmission ratio;generating a second predicted actual axle torque and a second predicted actual fuel consumption rate based on a second set of possible command values, the second set of possible command values including a second commanded engine output torque and a second commanded transmission ratio;determining a first cost for the first set of possible command values based on a first predetermined weighting value, a second predetermined weighting value, the first predicted actual axle torque, the first predicted actual fuel consumption rate, an axle torque requested, an engine output torque requested, a transmission ratio ...

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Номер записи: 53
01-10-2015 дата публикации

Model prediction control systems and methods for internal combustion engines

Номер: DE102015103883A1
Автор: Alberto Bemporad, Christopher E. Whitney, Daniele Bernardini, Gary Robert Cygan Jr., Julian R. Verdejo, Ning Jin, Ruixing Long
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Ein Kraftmaschinensteuerverfahren umfasst: Erzeugen eines ersten vorhergesagten Kraftmaschinenausgangsdrehmoments und einer ersten vorhergesagten Luftmasse pro Zylinder (APC) basierend auf einem Modell der Fremdzündungsmaschine und einem ersten Satz möglicher Zielwerte, die basierend auf einer Kraftmaschinendrehmomentanforderung bestimmt sind; Erzeugen eines zweiten vorhergesagten Kraftmaschinenausgangsdrehmoments und einer zweiten vorhergesagten Masse von APC basierend auf dem Modell der Fremdzündungsmaschine und einem zweiten Satz möglicher Zielwerte, die basierend auf der Kraftmaschinendrehmomentanforderung bestimmt sind; Bestimmen erster Kosten für den ersten Satz möglicher Zielwerte; Bestimmen zweiter Kosten für den zweiten Satz möglicher Zielwerte; Auswählen eines des ersten und zweiten Satzes basierend auf den ersten und zweiten Kosten; und Setzen von Zielwerten basierend auf den möglichen Zielwerten der gewählten des ersten und zweiten Satzes. An engine control method comprises: generating a first predicted engine output torque and a first predicted air mass per cylinder (APC) based on a model of the spark ignition engine and a first set of possible target values determined based on an engine torque request; Generating a second predicted engine output torque and a second predicted mass of APC based on the model of the spark ignition engine and a second set of possible target values determined based on the engine torque request; Determining first cost for the first set of possible target values; Determining second cost for the second set of possible target values; Selecting one of the first and second sets based on the first and second costs; and setting target values based on the possible target values of the selected ones of the first and second sets.

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Номер записи: 54
24-10-2017 дата публикации

Adaptive cruise control system and method incorporating regenerative braking and start-stop functions

Номер: US9796385B2
Автор: Christopher E. Whitney, Eric E. Krueger, Kiana Bassey, Matthew J. Klemmer, Patrick J. O'Leary
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A system according to the principles of the present disclosure includes a cruise control module, an engine control module, and a brake control module. The cruise control module determines a cruise torque request based on at least one of a following distance of a vehicle and a rate at which the vehicle is approaching an object. The engine control module determines a negative torque capacity of a powertrain. The powertrain includes an engine and an electric motor. The brake control module applies a friction brake when the cruise torque request is less than the negative torque capacity of the powertrain.

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Номер записи: 55
26-08-2021 дата публикации

Performing a negative torque downshift for discrete gear transmissions

Номер: DE102011116223B4
Автор: Adam J. Heisel, Christopher E. Whitney, Craig J. Hawkins, Keith D. Van Maanen, Matthew D. Whitton, Roger Joseph Rademacher
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Verfahren (600) zum Ausführen eines Herunterschaltvorgangs in einem Antriebsstrang (110) mit diskreten Gängen, der einen Eingangsknoten und einen Ausgangsknoten aufweist, wobei der Eingangsknoten (130) mit einer Kraftmaschine (112) und mit einer elektrischen Arbeitsmaschine (118) verbunden ist und der Ausgangsknoten (132) mit einem Achsantrieb (116) verbunden ist, wobei der Eingangsknoten (130) und der Ausgangsknoten (132) durch ein Anfangsdrehzahlverhältnis vor dem Herunterschaltvorgang und durch ein Abschlussdrehzahlverhältnis, das größer als das Anfangsdrehzahlverhältnis ist, nach dem Herunterschaltvorgang verknüpft sind, wobei das Verfahren (600) umfasst:Ausführen einer Drehmomentphase durch Einrücken einer herankommenden Kupplung, wobei die Drehmomentphase einen Beginn (202; 302; 402; 502) und ein Ende (204; 304; 404; 504) aufweist und mit dem Anfangsdrehzahlverhältnis stattfindet;Ausführen einer Trägheitsphase nach Ausführung der Drehmomentphase, wobei die Trägheitsphase einen Beginn (204; 304; 404; 504) und ein Ende (206, 306; 406; 506) aufweist und den Eingangsknoten (130) von dem Anfangsdrehzahlverhältnis auf das Abschlussdrehzahlverhältnis bringt;Berechnen eines ersten Ausgangsdrehmoments (510) für den Ausgangsknoten (132);Berechnen eines ersten regenerativen Eingangsdrehmoments (532) bei dem Eingangsknoten (130), wobei das erste Ausgangsdrehmoment im Wesentlichen gleich dem ersten regenerativen Eingangsdrehmoment (532), multipliziert mit dem Anfangsdrehzahlverhältnis ist;Anwenden des ersten regenerativen Eingangsdrehmoments (532) mit der elektrischen Arbeitsmaschine (118) zu Beginn der Drehmomentphase;Berechnen eines Drehmomentphasenversatzes während der Drehmomentphase während des Einrückens der herankommenden Kupplung (624); undÜbergehen zu einem zweiten regenerativen Eingangsdrehmoment (534) während der Drehmomentphase, wobei das zweite regenerative Eingangsdrehmoment (534) im Wesentlichen gleich dem ersten regenerativen Eingangsdrehmoment (532) plus ...

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Номер записи: 56
05-12-2013 дата публикации

Method for controlling power train of hybrid diesel-electric car, involves commanding electromotor to produce output torque, which is equal to difference between smoothed rider rotational torque and engine output torque

Номер: DE102013209572A1
Автор: Anthony H. Heap, Christopher E. Whitney, Luca Scavone
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

The method involves obtaining a rider rotational torque requirement (60). The rider rotational torque requirement is smoothed. A diesel combustion engine (12) is commanded to produce output torque, which is smaller than one smoke bordering torque. A multiphase asynchronous alternative current electromotor (14) of a vehicle power train (10) is commanded to produce an output torque, which is equal to difference between the smoothed rider rotational torque and the output torque of the engine. The torque demanded by the engine and the electromotor is optimized. An independent claim is also included for a hybrid diesel-electric power train.

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Номер записи: 57
03-02-2022 дата публикации

Engine control method with model prediction for future torque changes

Номер: DE102015103788B4
Автор: Christopher E. Whitney, Gary Robert Cygan Jr., Klaus Pochner
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Kraftmaschinensteuerverfahren für ein Fahrzeug, umfassend:Bestimmen vorhergesagter Drehmomente einer Kraftmaschine (102) jeweils für die M künftigen Zeitpunkte auf der Grundlage eines Satzes möglicher Zielwerte (230, 232, 234, 236, 238, 240, 242, 244) für M künftige Zeitpunkte und eines Modells (324) der Kraftmaschine (102) (410, 412, 416) undBestimmen eines vorhergesagten Geräusch-, Vibrations- und Rauheitswerts (NVH-Werts) auf der Grundlage des Satzes möglicher Zielwerte (230, 232, 234, 236, 238, 240, 242, 244) und des Modells (324) der Kraftmaschine (102) (416);wobei M eine ganze Zahl größer als Eins ist;Bestimmen von Kosten für den Satz möglicher Zielwerte (230, 232, 234, 236, 238, 240, 242, 244) auf der Grundlage von Vergleichen der vorhergesagten Drehmomente für die M künftigen Zeitpunkte jeweils mit den Kraftmaschinen-Drehmomentanforderungen (308) für die M künftigen Zeitpunkte (420) undBestimmen der Kosten für den Satz möglicher Zielwerte (230, 232, 234, 236, 238, 240, 242, 244) weiter auf der Grundlage eines Vergleichs des vorhergesagten NVH-Werts mit einem vorbestimmten NVH-Wert;Auswählen des Satzes möglicher Zielwerte (230, 232, 234, 236, 238, 240, 242, 244) aus einer Gruppe, die den Satz möglicher Zielwerte und N andere Sätze möglicher Zielwerte umfasst, auf der Grundlage der Kosten; wobei N eine ganze Zahl größer als Null ist (424);Einstellen von Zielwerten auf der Grundlage des ausgewählten Satzes möglicher Zielwerte (230, 232, 234, 236, 238, 240, 242, 244) (428); undSteuern eines Kraftmaschinenaktors (116, 158, 172, 164, 126,120) auf der Grundlage eines Ersten der Zielwerte (432). An engine control method for a vehicle, comprising: determining predicted torques of an engine (102) for each of the M future times based on a set of possible target values (230, 232, 234, 236, 238, 240, 242, 244) for M future times and a model (324) of the engine (102) (410, 412, 416) and determining a predicted noise, vibration and harshness (NVH) value based on the set of ...

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Номер записи: 58
03-04-2012 дата публикации

Airflow based idle speed control power security

Номер: US8147378B2
Автор: Christopher E. Whitney, Etsuko Muraji Stewart, Ning Jin, Richard B. Jess, Timothy J. Hartrey, Todd R. Shupe
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

An engine control system comprises a torque determination module, a limit determination module, a torque limit module, and a torque control module. The torque determination module determines a desired torque based on a desired engine speed. The limit determination module determines a torque limit based on one of an engine oil temperature and a transmission fluid temperature. The torque limit module determines a final torque based on the desired torque and the torque limit. The torque control module selectively determines a throttle area based on the final torque. A throttle valve is actuated based on the throttle area.

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Номер записи: 59
14-09-2017 дата публикации

Machine control system and method for controlling a machine

Номер: DE102008054061B4
Автор: Christopher E. Whitney, Jeffrey M. Kaiser, Michael Livshiz
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Maschinensteuersystem, das umfasst: ein Minimaldrehmomentmodul, das basierend auf wenigstens zwei aus einer gemessenen Drehzahl (RPM) einer Maschine, einem Luftdruck und einer Kühlmitteltemperatur der Maschine eine Drehmomentanforderung bestimmt; ein inverses APC-Drehmomentmodul, das basierend auf vorgegebenen Stellgliedwerten und auf einem vorhergesagten Maschinen-Drehmomentwert einen ersten gewünschten Maschinenluftwert bestimmt, wobei die vorgegebenen Stellgliedwerte eine vorgegebene RPM der Maschine enthalten und der erste gewünschte Maschinenluftwert eine Luft pro Zylinder der Maschine oder einen Luftmassendurchsatz der Maschine umfasst; ein inverses MAP-Drehmomentmodul, das basierend auf den vorgegebenen Stellgliedwerten und auf dem vorhergesagten Maschinen-Drehmomentwert einen zweiten gewünschten Maschinenluftwert bestimmt, wobei der zweite gewünschte Maschinenluftwert einen Krümmerdruck umfasst; und ein Drosselöffnungsflächenmodul, das basierend auf dem ersten und auf dem zweiten gewünschten Maschinenluftwert und auf der vorgegebenen RPM eine gewünschte Drosselöffnungsfläche bestimmt.

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Номер записи: 60
08-02-2011 дата публикации

Multi-pulse spark ignition direct injection torque based system

Номер: US7885756B2
Автор: Brian D Francis, Christopher E. Whitney, Christopher R. Graham, Jeffrey M. Kaiser, Michael Livshiz, Robert Francis Semrau
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A control system is provided and includes a catalyst module that generates a multi-mode enable signal based on a catalyst light off enable signal. A transition control module controls transitions between a single pulse mode and multi-pulse mode based on the multi-mode enable signal. The transition control module receives a first torque signal and generates a second torque signal based on the first torque signal. The engine torque control module generates an air per cylinder signal, a throttle area signal, and a spark timing signal based on the second torque signal. The single pulse mode is associated with a single fuel injection pulse per combustion cycle. The multi-pulse mode is associated with multiple fuel injection pulses per combustion cycle.

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Номер записи: 61
19-01-2010 дата публикации

Reserve torque management for engine speed control

Номер: US7650219B2
Автор: Christopher E. Whitney, Jeffrey M. Kaiser, Michael Livshiz, Ning Jin, Scott J. Chynoweth, Todd R. Shupe
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

An engine control module comprises a base reserve module, a power steering reserve module, a reserve torque module, first and second engine actuator modules, and an engine speed control module. The base reserve module determines a base reserve torque. The power steering reserve module determines a power steering reserve torque. The reserve torque module determines a first reserve torque based on the base reserve torque, the power steering reserve torque, and at least one of an oil temperature of an engine and a barometric pressure. The first and second engine actuator modules control first and second actuators of the engine, respectively. The engine speed control module instructs the first engine actuator module to produce a first torque output from the engine and instructs the second engine actuator module to produce a second torque output from the engine.

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Номер записи: 62
07-05-2013 дата публикации

Axle torque based cruise control

Номер: US8437938B2
Автор: Barbara A. Shuler, Christopher E. Whitney, Jun Lu, Patrick J. O'Leary, Vivek Mehta
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

An axle torque control system includes an axle torque request module that receives an axle torque request and that selectively outputs the axle torque request. An axle torque conversion module receives the axle torque request and converts the axle torque request to an engine torque request. A rate limit module receives the engine torque request and a pedal engine torque request and selectively adjusts the engine torque request based on the pedal engine torque request.

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Номер записи: 63
17-10-2017 дата публикации

Axle torque control system for a motor vehicle

Номер: US9789876B1
Автор: Alberto Bemporad, Christopher E. Whitney, Daniele Bernardini, Kevin C. Wong, Michael Livshiz
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A powertrain control system for a motor vehicle having a transmission and an engine includes an axle torque controller that determines a desired engine torque and a desired speed ratio from a plurality of inputs, an engine controller that determines a commanded engine torque based on the desired engine torque, wherein the commanded engine torque is used to control the engine to produce an actual engine torque, a transmission controller that determines a commanded gear ratio based on the desired gear ratio, wherein the commanded gear ratio is used to control the transmission to produce an actual gear ratio, and an estimator that determines an actual axle torque of the motor vehicle from the actual engine torque and the actual gear ratio. The plurality of inputs includes a desired axle torque, the actual axle torque, a desired fuel rate, an actual fuel rate.

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Номер записи: 64
05-06-2012 дата публикации

Association of torque requesting modules in a coordinated torque architecture

Номер: US8195370B2
Автор: Charles H. Folkerts, Christopher E. Whitney, David J. Stroh, Leonard G. Wozniak, Michael Livshiz, Robert C. Simon, Jr., Scott J. Chynoweth
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A powertrain control system for a vehicle includes a plurality of axle torque request modules that generate respective axle torque requests based on respective performance criteria of a vehicle, an axle torque arbitration module that generates a net axle torque request based on the plurality of axle torque requests, a plurality of propulsion torque request modules that generate respective propulsion torque requests based on respective performance criteria of an engine of the vehicle, a propulsion torque arbitration module that determines a net engine torque request based on the net axle torque request and the plurality of propulsion torque requests, and a propulsion torque control module that controls a plurality of actuators based on the net engine torque request such that the engine produces an output torque in accordance with the net engine torque request.

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Номер записи: 65
30-01-2020 дата публикации

Method for setting a torque capacity of a machine using a model prediction controller

Номер: DE102015103621B4
Автор: Alberto Bemporad, Christopher E. Whitney, Daniele Bernardini, Gary Robert Cygan Jr., Kevin C. Wong
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Verfahren, umfassend:Erzeugen einer Solldrehmomentkapazität (374) einer Maschine (102) zu einem zukünftigen Zeitpunkt basierend auf einer gegenwärtigen Drehmomentanforderung und einer maximalen Drehmomentabgabe (368) der Maschine (102);Erzeugen einer Anforderung für antizipiertes Drehmoment basierend auf der Solldrehmomentkapazität (374);Steuern eines Aktors (116, 120, 124, 126, 158, 164, 172) der Maschine (102) zu einer gegenwärtigen Zeit basierend auf der Anforderung für antizipiertes Drehmoment;wobei die Solldrehmomentkapazität (374) auf eine einer ersten Drehmomentkapazität und einer zweiten Drehmomentkapazität geschaltet wird, bevor eine Zieldrehmomentkapazität (287) der Maschine (102) zu dem gegenwärtigen Zeitpunkt auf die eine der ersten Drehmomentkapazität und der zweiten Drehmomentkapazität geschaltet wird,wobei, wenn die Maschine (102) bei der zweiten Drehmomentkapazität arbeitet, auf Basis der maximalen Drehmomentabgabe (368) der Maschine (102) eine erste Drehmomentschwelle bestimmt wird; und,wenn die gegenwärtige Drehmomentanforderung kleiner als die erste Drehmomentschwelle ist, die Zieldrehmomentkapazität (287) von der ersten Drehmomentkapazität auf die zweite Drehmomentkapazität geschaltet wird. A method comprising: generating a target torque capacity (374) of a machine (102) at a future time based on a current torque request and a maximum torque output (368) of the machine (102); generating a anticipated torque request based on the target torque capacity (374) Controlling an actuator (116, 120, 124, 126, 158, 164, 172) of the machine (102) at a current time based on the anticipated torque request; wherein the target torque capacity (374) is one of a first torque capacity and a second Torque capacity is switched before a target torque capacity (287) of the engine (102) is switched to one of the first torque capacity and the second torque capacity at the present time, and when the engine (102) operates at the second torque capacity, based on the ...

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Номер записи: 66
03-11-2022 дата публикации

PROCEDURE FOR DETERMINING REFERENCE AIRFLOW ACTUATOR POSITIONS FOR A PETROL ENGINE

Номер: DE102018102081B4
Автор: Christopher E. Whitney, David N. HAYDEN, Gary Robert Cygan jun., Stephen P. LEVIJOKI
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Verfahren zum Ermitteln von Referenz-Stellgliedpositionen für einen Benzinmotor, beinhaltend:das Eingeben einer Basisdrehmomentanforderung in ein inverses Drehmomentmodell, um eine erste gewünschte Iteration des Luft-pro-Zylinder-Wertes zu erzeugen;gekennzeichnet durchdas Berechnen einer Predicted-As-Cal-Frühzündung für die erste Iteration des gewünschten Luft-pro-Zylinder-Wertes;das Modifizieren der ersten Iteration des gewünschten Luft-pro-Zylinder-Wertes, um eine zweite Iteration des gewünschten Luft-pro-Zylinder-Wertes durch Eingeben der Predicted-As-Cal-Frühzündung, der Basisdrehmomentanforderung und der Daten aus mindestens einer Nachschlagetabelle in das inverse Drehmomentmodell zu erzeugen; unddas Ermitteln mindestens einer Stellglied-Referenzposition unter Verwendung von Daten aus einer zweiten Nachschlagetabelle und der zweiten Iteration des gewünschten Luft-pro-Zylinder-Wertes. A method of determining reference actuator positions for a gasoline engine, comprising:inputting a baseline torque request into an inverse torque model to produce a first desired iteration of the air-per-cylinder value;characterized bycalculating a predicted-as-cal spark advance for the first iteration of the desired air-per-cylinder value;modifying the first iteration of the desired air-per-cylinder value to generate a second iteration of the desired air-per-cylinder value by entering the predicted-as-cal generate spark advance, the baseline torque request, and the data from at least one look-up table into the inverse torque model; anddetermining at least one actuator reference position using data from a second look-up table and the second iteration of the desired air-per-cylinder value.

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Номер записи: 67
26-03-2013 дата публикации

Air conditioning torque compensation energy matching inertia transfer

Номер: US8406954B2
Автор: Christopher E. Whitney, Mark E. Johnston, Todd R. Shupe
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

An engine control system comprises a torque control module, an air conditioning (A/C) load comparison module, and an A/C load compensation module. The torque control module controls an engine to produce a first torque request based on a first torque maintains a current speed of the engine. The A/C load comparison module compares a transient load to a difference between a torque available to the engine and the first torque request. The A/C load compensation module selectively increases the first torque request prior to a clutch engagement based on the comparison.

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Номер записи: 68
15-04-2010 дата публикации

Capacity increase planning for coordinated torque control systems

Номер: DE102008038820B4
Автор: Christopher E. Highland Whitney, Jaehak Jung, Jeffrey M. Highland Kaiser, Klaus Pochner, Leonard G. Ann Arbor Wozniak, Louis A. Milford Avallone
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Steuersystem für eine Maschine (102) eines Fahrzeugs, umfassend: ein Modul (230) für das angeforderte Drehmoment, das auf der Grundlage einer Fahrpedalstellung und einer gegenwärtigen Maschinendrehmomentabgabe-Kapazität ein erstes angefordertes Drehmoment bestimmt; und ein Leistungserhöhungsmodul (PE-Modul, 115), das einen PE-Modus freigibt, um ein fetteres als das stöchiometrische Kraftstoffäquivalenzverhältnis zu liefern, gekennzeichnet durch ein Modul (232) für die effektive Fahrpedalstellung, das auf der Grundlage eines Signals der resultierenden Fahrerachsdrehmomentanforderung eine effektive Fahrpedalstellung bestimmt, wobei das Leistungserhöhungsmodul (115) den PE-Modus auf der Grundlage des ersten angeforderten Drehmoments und der effektiven Fahrpedalstellung freigibt. A control system for a machine (102) of a vehicle, comprising: a requested torque module (230) that determines a first requested torque based on an accelerator pedal position and a current engine torque output capacity; and a power boost module (PE module, 115) that releases a PE mode to provide a richer than the stoichiometric fuel equivalent ratio; marked by an accelerator pedal position module (232) that determines an effective accelerator pedal position based on a signal of the resulting driver axle torque request, wherein the power boost module (115) enables the PE mode based on the first requested torque and the accelerator pedal effective position.

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Номер записи: 69
21-11-2013 дата публикации

Method for instructing synchronous gears in drive train of vehicle, involves transferring torque control mode of combustion engine into speed control mode to rotate engine by movement of vehicle and gear ratio of gear

Номер: DE102013208858A1
Автор: Christopher E. Whitney, Christopher Harold Knieper, Matthew D. Whitton, Ning Jin, Ronald W. Van Diepen
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

The method involves providing request for switching with gear ratio between first gear and third gear. The torque command is reduced to specific value. The clutch arranged on input shaft of gear box (16) is opened in order to decouple gearbox from combustion engine (14). The torque control mode of engine is transferred into speed control mode to rotate the engine by movement of vehicle (10) and gear ratio of gear. The clutch is closed in order to couple gearbox and engine. The speed control mode of engine is transferred into torque control mode.

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Номер записи: 70
12-09-2019 дата публикации

Diagnostic systems and diagnostic methods using model prediction control

Номер: DE102015104099B4
Автор: Christopher E. Whitney, Robert J. Genslak
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Kraftmaschinensteuerverfahren für ein Fahrzeug, wobei das Verfahren umfasst: Überführen der Kraftstoffbeaufschlagung einer Kraftmaschine von kraftstoffreich zu kraftstoffarm; Diagnostizieren, ob in dem Abgaskatalysator ein Fehler vorliegt, auf der Grundlage eines Ansprechens eines Sauerstoffsensors auf den Übergang, wobei sich der Sauerstoffsensor stromaufwärts oder stromabwärts von dem Abgaskatalysator befindet; Erzeugen eines vorhergesagten Betriebsparameters der Kraftmaschine auf der Grundlage eines Modells der Kraftmaschine und eines Satzes möglicher Zielwerte, die auf der Grundlage einer Kraftmaschinen-Drehmomentanforderung bestimmt wurden; Bestimmen von Kosten für den Satz möglicher Zielwerte auf der Grundlage von Vergleichen des vorhergesagten Betriebsparameters mit einem vorgegebenen Minimalwert und Maximalwert; wahlweises Einstellen des vorgegebenen Minimalwerts und/oder Maximalwerts für die Fehlerdiagnose vor dem Übergang; auf der Grundlage der Kosten: Auswählen des Satzes möglicher Zielwerte aus einer Gruppe, die den Satz möglicher Zielwerte und N andere Sätze möglicher Zielwerte, die auf der Grundlage der Kraftmaschinen-Drehmomentanforderung bestimmt wurden, wobei N eine ganze Zahl größer als null ist, enthält; und Einstellen von Zielwerten auf der Grundlage des ausgewählten Satzes möglicher Zielwerte; und Steuern eines Kraftmaschinenaktors auf der Grundlage eines Ersten der Zielwerte.

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Номер записи: 71
07-01-2014 дата публикации

Driveline stiffness control systems and methods

Номер: US8626411B2
Автор: Christopher E. Whitney, Daniel J. Wickman, Jeffrey M. Kaiser, Scott A. Hearld, William L. Aldrich, III
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A control system for a vehicle, comprises a torque determination module, a control module, and a transmission control module. The torque determination module determines torque produced by an internal combustion engine. The control module sets a signal to an active state when the torque is greater than a predetermined torque and a slip amount between an engine output speed and a transmission input speed is zero. The predetermined torque corresponds to a potential vibration amount when the slip amount is zero. The transmission control module selectively increases the slip amount above zero in response to the setting of the signal to the active state.

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Номер записи: 72
29-12-2016 дата публикации

Systems and methods for controlling the rigidity of a driveline

Номер: DE102010050750B4
Автор: Christopher E. Whitney, Daniel J. Wickman, Jeffrey M. Kaiser, Scott A. Hearld, William L. Aldrich III
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Steuersystem für ein Fahrzeug, das umfasst: ein Drehmomentermittlungsmodul (270), das ein Drehmoment ermittelt, das durch einen Verbrennungsmotor (102) erzeugt wird; ein Steuermodul (114), das ein Signal auf einen aktiven Zustand setzt, wenn das Drehmoment größer als ein vorbestimmtes Drehmoment ist und ein Schlupfbetrag zwischen einer Motorausgangsdrehzahl und einer Getriebeeingangsdrehzahl Null ist, wobei das vorbestimmte Drehmoment einem möglichen Vibrationsbetrag entspricht, wenn der Schlupfbetrag Null ist; und ein Getriebesteuermodul (194), das den Schlupfbetrag in Ansprechen darauf selektiv über Null erhöht, dass das Signal auf den aktiven Zustand gesetzt ist, wobei das Steuermodul (114) ein Betragssignal basierend auf dem vorbestimmten Drehmoment festlegt und wobei das Getriebesteuermodul (194) den Schlupfbetrag basierend auf dem Betragssignal selektiv erhöht, gekennzeichnet durch ein Schwellenwert-Ermittlungsmodul (304), welches das vorbestimmte Drehmoment basierend auf einem Zündintervall zwischen zwei aufeinander folgenden Zündungsereignissen und einem Übersetzungsverhältnis, das in einem Getriebe (195) ausgewählt ist, ermittelt. A control system for a vehicle, comprising: a torque detection module (270) that determines a torque generated by an internal combustion engine (102); a control module (114) that sets a signal to an active state when the torque is greater than a predetermined torque and a slip amount between an engine output speed and a transmission input speed is zero, wherein the predetermined torque corresponds to a possible amount of vibration when the slip amount is zero ; and a transmission control module (194) that selectively increases the amount of slip above zero in response to the signal being set to the active state, wherein the control module (114) sets an amount signal based on the predetermined torque and wherein the transmission control module (194) generates the Slip amount selectively increased based on the magnitude signal, ...

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Номер записи: 73
10-09-2009 дата публикации

Speed control in a torque-based system

Номер: DE102009003948A1
Автор: Christopher E. Highland Whitney, Klaus Pochner, Michael Ann Arbor Livshiz, Ning Novi Jin, Todd R. Milford Shupe, Weixin Novi Yan
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Ein Motorsteuersystem umfasst ein Leistungsmodul, ein Luftströmungsmodul, ein Drehmomentschätzmodul und ein Luftsteuermodul. Das Leistungsmodul ermittelt ein leistungsbasiertes Drehmoment basierend auf einer Soll-Motordrehzahl. Das Luftströmungsmodul ermittelt einen Luftströmungswert basierend auf dem leistungsbasierten Drehmoment. Das Drehmomentschätzmodul schätzt ein Soll-Drehmoment basierend auf dem Luftströmungswert. Das Luftsteuermodul ermittelt selektiv eine Drosselfläche basierend auf dem Soll-Drehmoment. Ein Drosselventil wird basierend auf der Drosselfläche betätigt. An engine control system includes a power module, an airflow module, a torque estimation module, and an air control module. The power module determines a power-based torque based on a desired engine speed. The airflow module determines an airflow value based on the power-based torque. The torque estimation module estimates a desired torque based on the airflow value. The air control module selectively determines a throttle area based on the desired torque. A throttle valve is actuated based on the throttle area.

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Номер записи: 74
11-08-2011 дата публикации

Power-based engine speed control

Номер: DE102011009809A1
Автор: Christopher E. Mich. Whitney, Krishnendu Mich. Kar, Luca Scavone, Massimiliano Maira, Michael Mich. Livshiz
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Ein Steuersystem umfasst ein Maschinendrehzahlsteuermodul, ein Kraftstoffsteuermodul und ein Luftsteuermodul. Das Maschinendrehzahlsteuermodul steuert eine Istdrehzahl einer Maschine auf der Grundlage einer gewünschten Leistung, die durch die Verbrennung in der Maschine erzeugt werden soll, wobei die gewünschte Leistung ein Produkt einer gewünschten Drehzahl der Maschine und eines gewünschten Drehmomentausgangs der Maschine ist. Beim Betrieb in einem Kraftstoffleitungsmodus steuert das Kraftstoffsteuermodul die Kraftstoffströmung in der Maschine durch Anpassen einer gewünschten Kraftstoffmasse für jeden zugeschalteten Zylinder der Maschine auf der Grundlage der gewünschten Leistung. Das Luftsteuermodul steuert die Luftströmung in der Maschine auf der Grundlage eines Ist-Luft/Kraftstoff-Verhältnisses der Maschine, das aus der gewünschten Kraftstoffmasse resultiert. A control system includes an engine speed control module, a fuel control module, and an air control module. The engine speed control module controls an actual speed of an engine based on a desired power to be generated by combustion in the engine, the desired power being a product of a desired speed of the engine and a desired torque output of the engine. When operating in a fuel rail mode, the fuel control module controls fuel flow in the engine by adjusting a desired fuel mass for each activated cylinder of the engine based on the desired performance. The air control module controls air flow in the engine based on an actual engine air / fuel ratio resulting from the desired fuel mass.

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Номер записи: 75
18-10-2011 дата публикации

Commanded and estimated engine torque adjustment

Номер: US8041487B2
Автор: Christopher E. Whitney, Enrico TROPSCHUG, James L. Worthing, Martin Weber, Michael Livshiz, Ning Jin
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

An engine control system comprises first and second integral modules, a summer module, and a torque adjustment module. The first integral module determines an engine speed (RPM) integral value based on a difference between a desired RPM and a measured RPM. The second integral module determines a torque integral value based on a difference between a desired torque output for an engine and an estimated torque of the engine. The summer module determines an RPM-torque integral value based on a difference between the RPM and torque integral values. The torque adjustment module determines a torque adjustment value based on the RPM-torque integral value and adjusts the desired torque output and the estimated torque based on the torque adjustment value.

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Номер записи: 76
28-06-2016 дата публикации

Airflow control systems and methods using model predictive control

Номер: US9376965B2
Автор: Christopher E. Whitney, Sharon L. Storch
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A torque requesting module generates a first torque request for a spark ignition engine based on driver input. A torque conversion module converts the first torque request into a second torque request. A setpoint control module, based on the second torque request, generates a mass of air per cylinder (APC) setpoint, an exhaust gas recirculation (EGR) setpoint, an intake valve phasing setpoint, and an exhaust valve phasing setpoint. A model predictive control (MPC) module: identifies sets of possible target values based on the APC, EGR, intake valve phasing, and exhaust valve phasing setpoints; generates predicted parameters based on a model of the spark ignition engine and the sets of possible target values, respectively; selects one of the sets of possible target values based on the predicted parameters; and sets target values based on the possible target values of the selected one of the sets.

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Номер записи: 77
07-01-2020 дата публикации

Method and system to detect and mitigate sensor degradation

Номер: US10526992B2
Автор: Christopher E. Whitney, Jeffrey M. Hutmacher, Kevin C. Wong, Marcus S. Gilbert
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A method to detect and mitigate sensor degradation in an automobile system includes: collecting output signal data from at least one of a sensor and an actuator which is outputting the signal data related to operational parameters of a vehicle system; placing the sensor or the actuator in communication with a fault box used to purposely corrupt the output signal data; analyzing patterns of the output signal data compared to signal data from a nominal operating sensor or actuator using an artificial intelligence program; identifying when a statistical range of the patterns exceeds a first threshold level; and modifying a control signal to change the operational parameters of the vehicle system.

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Номер записи: 78
23-08-2018 дата публикации

TORQUE SECURITY OF MPC-BASED DRIVE TRAVEL CONTROL

Номер: DE102018102888A1
Автор: Bharath PATTIPATI, Christopher E. Whitney, James L. Worthing, Michael Livshiz
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Ein Antriebssystem, ein Steuersystem und ein Verfahren werden bereitgestellt, die eine modellprädiktive Steuerung verwenden, um einen anfänglichen ausgewählten Motorabtriebsdrehmomentwert zu erzeugen. Eine minimale Drehmomentbegrenzung wird durch Auswählen eines minimalen akzeptablen Motorabtriebsdrehmoments ermittelt. Eine maximale Drehmomentbegrenzung wird durch Auswählen eines maximal akzeptablen Motorabtriebsdrehmoments ermittelt. Ein gewünschter Motorabtriebsdrehmomentwert wird festgelegt als: a) die minimale Drehmomentbegrenzung, wenn der anfänglich ausgewählte Motorabtriebsdrehmomentwert kleiner als die minimale Drehmomentbegrenzung ist; b) die maximale Drehmomentbegrenzung, wenn der anfänglich ausgewählte Motorabtriebsdrehmomentwert größer als die maximale Drehmomentbegrenzung ist; oder c) der anfänglich ausgewählte Motorabtriebsdrehmomentwert, wenn der anfänglich ausgewählte Motorabtriebsdrehmomentwert weder größer als die maximale Drehmomentbegrenzung noch kleiner als die minimale Drehmomentbegrenzung ist. A propulsion system, control system, and method are provided that use model predictive control to generate an initial selected engine output torque value. A minimum torque limit is determined by selecting a minimum acceptable engine output torque. A maximum torque limit is determined by selecting a maximum acceptable engine output torque. A desired engine output torque value is set as: a) the minimum torque limit when the initially selected engine output torque value is less than the minimum torque limit; b) the maximum torque limit when the initially selected engine output torque value is greater than the maximum torque limit; or c) the initially selected engine output torque value if the initially selected engine output torque value is neither greater than the maximum torque limit nor less than the minimum torque limit.

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Номер записи: 79
13-04-2010 дата публикации

Speed control in a torque-based system

Номер: US7698049B2
Автор: Christopher E. Whitney, Klaus Pochner, Michael Livshiz, Ning Jin, Todd R. Shupe, Weixin Yan
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

An engine control system includes a power module, an air flow module, a torque estimation module, and an air control module. The power module determines a power-based torque based on a desired engine speed. The air flow module determines an air flow value based on the power-based torque. The torque estimation module estimates a desired torque based on the air flow value. The air control module selectively determines a throttle area based on the desired torque. A throttle valve is actuated based on the throttle area.

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Номер записи: 80
16-09-2014 дата публикации

Method of controlling catalyst light-off of a hybrid vehicle

Номер: US8838316B2
Автор: Christopher E. Whitney, J Michael Ellenberger, James B. Nicholson, Jeffrey M. Hutmacher, Rafat F Hattar
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A method of warming a catalyst of an exhaust gas treatment system of a hybrid vehicle includes transitioning a rotational speed of an engine to within a pre-defined speed range with an electric motor, and reducing an engine manifold pressure to within a pre-defined pressure range. The engine is fueled after the rotational speed of the engine is within the pre-defined speed range, and the engine manifold pressure is within the pre-defined pressure range. While the engine is being fueled, the engine manifold pressure is increased to within a catalyst light-off pressure range, and the torque output of the engine is increased to within a catalyst light-off operating torque range. The exhaust gas produced from the operation of the engine within the pre-defined speed range, within the catalyst light-off pressure range, and within the catalyst light-off operating torque range heats the catalyst while minimizing emissions.

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Номер записи: 81
17-05-2018 дата публикации

Air flow-based starting throttle control in a torque-based system

Номер: DE102008040010B4
Автор: Christopher E. Whitney, Jeffrey M. Kaiser, Jon C. Miller, Mark D. Carr, Michael Livshiz, Robert C. Simon jun., Todd R. Shupe
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Verfahren, das umfasst:Bestimmen einer Soll-Luftdurchflussmenge in einen Einlasskrümmer einer Brennkraftmaschine während eines Motorstartzustands;Bestimmen eines Drehmomentgrenzwertes für ein drehmomentbasiertes Motorsteuermodul auf Grundlage der Soll-Luftdurchflussmenge; undRegulieren des Motordrehmoments auf Grundlage des bestimmten Drehmomentgrenzwertes. A method comprising: determining a desired air flow rate into an intake manifold of an internal combustion engine during an engine startup condition; determining a torque limit value for a torque based engine control module based on the desired airflow rate; andcontrolling engine torque based on the determined torque limit.

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Номер записи: 82
29-08-2019 дата публикации

SYSTEM AND METHOD FOR CONTROLLING AIR FLOW USING A CONTROL BY A PREDICTIVE MODEL

Номер: DE102014105277B4
Автор: Christopher E. Whitney, Jyh-Shin Chen, Kevin C. Wong, Ning Jin, Robert J. Genslak
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Motorsteuerverfahren für ein Fahrzeug, umfassend, dass: eine erste Drehmomentanforderung (254) für einen Funkenzündungsmotor (102) basierend auf einer Fahrereingabe (255) erzeugt wird; die erste Drehmomentanforderung (254) in eine zweite Drehmomentanforderung (308) umgewandelt wird; Luft- und Abgas-Einstellungspunkte (318, 320, 324, 328, 332, 380, 384, 388, 392) für den Funkenzündungsmotor (102) basierend auf der zweiten Drehmomentanforderung (308) erzeugt werden; unter Verwendung eines Moduls (360) zur Steuerung mittels eines voraussagenden Modells (MPC-Moduls): Sätze möglicher Zielwerte (266, 267, 268, 269, 270) basierend auf den Luft- und Abgas-Einstellungspunkten (318, 320, 324, 328, 332, 380, 384, 388, 392) identifiziert werden; vorausgesagte Parameter basierend auf einem Modell (376) des Funkenzündungsmotors (102) und den jeweiligen Sätzen möglicher Zielwerte (266, 267, 268, 269, 270) erzeugt werden; einer der Sätze möglicher Zielwerte (266, 267, 268, 269, 270) basierend auf den vorausgesagten Parametern ausgewählt wird; und Zielwerte (266, 267, 268, 269, 270) basierend auf den möglichen Zielwerten (266, 267, 268, 269, 270) des ausgewählten der Sätze festgelegt werden; ein vorbestimmter Bereich für einen ersten der Zielwerte (266, 267, 268, 269, 270) selektiv festgelegt wird; der erste der Zielwerte (266, 267, 268, 269, 270) auf Werte innerhalb des vorbestimmten Bereichs begrenzt wird; und eine Öffnung eines Drosselventils (112) basierend auf einem zweiten (267) der Zielwerte (266, 267, 268, 269, 270) gesteuert wird, wobei der vorbestimmte Bereich für den ersten der Zielwerte (266, 267, 268, 269, 270) von einer ersten Grenze bis zu einer zweiten Grenze eines zweiten vorbestimmten Bereichs um den ersten der Zielwerte (266, 267, 268, 269, 270) herum eingestellt wird. Motor control method for a vehicle, comprising: generating a first torque request (254) for a spark ignition engine (102) based on a driver input (255); the first torque request (254) is converted ...

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Номер записи: 83
06-11-2018 дата публикации

Coordination of torque interventions in MPC-based powertrain control

Номер: US10119481B2
Автор: Alberto Bemporad, Bharath PATTIPATI, Christopher E. Whitney, Daniele Bernardini, Michael Livshiz
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A propulsion system, control system, and method are provided for optimizing fuel economy, which use model predictive control systems to generate a plurality of sets of possible command values and determine a cost for each set of possible command values of based on a first predetermined weighting value, a second predetermined weighting value, a plurality of predicted values, and a plurality of requested values. The set of possible command values having the lowest cost is determined and defined as a set of selected command values. Arbitration is performed including at least one of the following: A) determining at least one requested value based on arbitrating between a driver requested value and an intervention requested value; and B) determining a desired command value by arbitrating between a selected command value of the set of selected command values and a command intervention value.

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Номер записи: 84
17-05-2016 дата публикации

Throttle control systems and methods for reducing induction noise

Номер: US9341150B2
Автор: Christopher E. Whitney, Jeffrey M. Kaiser
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A throttle control system includes a target pressure module, a torque determination module, and a target opening module. The target pressure module determines an induction noise value based on an engine operating parameter and determines a target pressure downstream of a throttle valve of an engine based on a pressure at an inlet of the throttle valve and the induction noise value. The torque determination module determines a torque request for the engine based on the target pressure. The target opening module determines a target opening for the throttle valve based on the torque request and selectively adjusts opening of the throttle valve based on the target opening.

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Номер записи: 85
19-01-2017 дата публикации

A throttle control system and method for internal combustion engines for reducing throttle oscillations

Номер: DE102009058533B4
Автор: Christopher E. Whitney, Justin A. Zaydel, Michael Arnett, Per Anderson
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Drosselsteuersystem, das umfasst: ein Druckvergleichsmodul (52), das einen Einlassdruck stromaufwärts eines Drosselkörpers (22) und einen Auslassdruck stromabwärts des Drosselkörpers (22) ermittelt; und ein Drosselklappen-Steuermodul (54), das eine Position einer Drosselklappe (24) basierend auf dem Einlassdruck und dem Auslassdruck steuert, wobei das Drosselklappen-Steuermodul (54) die Position der Drosselklappe (24) basierend auf dem Einlassdruck, dem Auslassdruck, einem gewünschten Luftmassendruck (MAP) und einem Turbo-Basisdruck steuert, wenn ein Motor (12) gestartet wird, wobei das Drosselklappen-Steuermodul (54) die Drosselklappe (24) aus einer weit offenen Position in eine gewünschte Drosselposition bewegt, wenn der gewünschte MAP nicht größer als der Turbo-Basisdruck ist oder wenn eine Differenz zwischen dem Einlassdruck und dem Auslassdruck gleich einem zweiten Schwellenwert oder größer als dieser ist, oder wobei das Drosselklappen-Steuermodul (54) die Drosselklappe (24) aus einer ersten Drosselposition in eine zweite Drosselposition bewegt, wenn der gewünschte MAP größer als eine Summe des Turbo-Basisdrucks und einer Hysterese ist und wenn die Druckdifferenz zwischen dem Einlassdruck und dem Auslassdruck unterhalb eines ersten Schwellenwerts liegt, oder ferner ein Ladedruckregelventil-Steuermodul (56) umfassend, das selektiv aktiviert wird, um ein Ladedruckregelventil (33) zu steuern, um die Drosselklappe (24) in eine gewünschte Drosselposition zu bewegen, wenn der gewünschte MAP größer als der Turbo-Basisdruck ist. A throttle control system comprising: a pressure comparison module (52) that determines an intake pressure upstream of a throttle body (22) and an exhaust pressure downstream of the throttle body (22); and a throttle control module (54) that controls a position of a throttle (24) based on the intake pressure and the exhaust pressure, the throttle control module (54) determining the position of the throttle (24) based on the intake pressure, the ...

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Номер записи: 86
01-10-2015 дата публикации

Diagnostic systems and diagnostic methods using model prediction control

Номер: DE102015104099A1
Автор: Christopher E. Whitney, Robert J. Genslak
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Ein Kraftstoffsteuermodul überführt die Kraftmaschinenkraftstoffbeaufschlagung von kraftstoffreich zu kraftstoffarm. Ein Katalysatorfehler-Detektionsmodul diagnostiziert auf der Grundlage eines Ansprechens eines Sauerstoffsensors auf den Übergang, ob in einem Abgaskatalysator ein Fehler vorliegt. Ein Vorhersagemodul erzeugt auf der Grundlage eines Modells und eines Satzes möglicher Zielwerte eine Vorhersage. Ein Kostenmodul bestimmt auf der Grundlage von Vergleichen der Vorhersage mit Minima und Maxima Kosten für den Satz möglicher Zielwerte. Vor dem Übergang stellt ein Beschränkungsmodul wahlweise das Minimum und/oder Maxima für die Fehlerdiagnose ein. Ein Auswahlmodul wählt auf der Grundlage der Kosten aus einer Gruppe von Sätzen möglicher Zielwerte den Satz möglicher Zielwerte aus und stellt Zielwerte auf der Grundlage des ausgewählten Satzes möglicher Zielwerte ein. Ein Aktormodul steuert einen Kraftmaschinenaktor auf der Grundlage eines Ersten der Zielwerte. A fuel control module converts engine fueling from fuel rich to fuel lean. A catalyst failure detection module diagnoses whether there is an error in an exhaust catalyst based on an oxygen sensor response. A prediction module generates a prediction based on a model and a set of possible target values. A cost module determines costs for the set of possible target values based on comparisons of the prediction with minima and maxima. Before the transition, a constraint module optionally sets the minimum and / or maximums for fault diagnostics. A selection module selects the set of possible target values based on the cost of a set of possible target values and sets target values based on the selected set of possible target values. An actuator module controls an engine actuator based on a first of the target values.

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Номер записи: 87
17-11-2011 дата публикации

SYSTEMS AND METHOD FOR CONTROLLING A FUEL TIMING TRANSFER

Номер: DE102011018454A1
Автор: Christopher E. Whitney, Jun Lu, Krishnendu Kar, Michael J. Pitsch, Ryan Goode
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Ein Motorsteuersystem umfasst ein Kraftstoffabschaltmodul (FCO-Modul), ein Kraftstoffsteuermodul und ein Zündfunkensteuermodul. Das FCO-Modul ermittelt dann, wenn ein FCO-Ereignis deaktiviert wird, eine Optimalwertanzahl (FF-Anzahl) von Zylindern, um eine Verzögerungsdauer auszugleichen, die mit einem Zuführen von Kraftstoff zu den Zylindern eines Motors verbunden ist, und es hält eine FCO-Drehmomentanforderung selektiv bei einem vorbestimmten Drehmoment. Das Kraftstoffsteuermodul weist an, dass der FF-Anzahl von Zylindern des Motors Kraftstoff zugeführt wird, wenn das FCO-Ereignis deaktiviert wird. Das Zündfunkensteuermodul hält einen Zündfunkenzeitpunkt der FF-Anzahl von Zylindern basierend auf der FCO-Drehmomentanforderung bei einem vollständig nach spät verstellten Zündfunkenzeitpunkt. An engine control system includes a fuel cutoff module (FCO), a fuel control module, and a spark control module. The FCO module then determines, when an FCO event is deactivated, a feedforward number (FF number) of cylinders to compensate for a delay period associated with supplying fuel to the cylinders of an engine, and it maintains an FCO- Torque request selectively at a predetermined torque. The fuel control module instructs that the FF number of cylinders of the engine be fueled when the FCO event is deactivated. The spark control module maintains a spark timing of the FF number of cylinders based on the FCO torque request at a fully retarded spark timing.

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Номер записи: 88
07-07-2015 дата публикации

Diesel engine steady state and transient hybrid optimization

Номер: US9073545B2
Автор: Anthony H. Heap, Christopher E. Whitney, Cornelius Heisler, Luca Scavone
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A method for selecting an engine operating point in a multi-mode powertrain system includes monitoring a desired axle torque based on an operator torque request and vehicle speed. For each available combustion mode of the diesel engine, engine torque and speed ranges are received and a plurality of fuel losses and a plurality of emissions losses are retrieved, each fuel and emissions loss corresponding to respective ones of a plurality of engine operating points within the engine torque and speed ranges. The respective fuel and emissions losses are compared at each of a plurality of potential engine operating points within the engine torque and speed ranges of the available combustion modes. A desired engine operating point within one of the available combustion modes is selected that corresponds to one of the potential engine operating points having a lowest power loss based on the compared respective fuel and emissions losses.

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Номер записи: 89
14-06-2016 дата публикации

Method and apparatus for torque arbitration and shaping in a multi-mode powertrain system

Номер: US9365204B2
Автор: Anthony H. Heap, Christopher E. Whitney
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A method for operating a multi-mode powertrain system includes monitoring an operator request for tractive power, and arbitrating the operator request for tractive power with axle torque constraints and crankshaft torque constraints. An immediate tractive torque request and a predicted tractive torque request are determined based upon the arbitrated operator request for tractive power. The predicted tractive torque request is shaped based upon driveability torque constraints. Operation of torque-generative devices of the multi-mode powertrain system are controlled based upon the predicted tractive torque request and the driveability-shaped predicted tractive torque request.

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Номер записи: 90
07-05-2009 дата публикации

Cylinder fueling coordination for torque estimation and control

Номер: US20090118977A1
Автор: Bahram Younessi, Christopher E. Whitney, Jeffrey M. Kaiser, Mark D. Carr, Michael J. Pitsch
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

An engine control system comprises a torque control module and a fueling control module. The torque control module selectively generates a deactivation signal for a first cylinder of a plurality of cylinders of an engine based on a torque request. The fueling control module halts fuel delivery to the first cylinder based on the deactivation signal. The torque control module increases a spark advance of the engine at a first time after the fueling control module halts fuel injection for the first cylinder. The first time corresponds to an initial time combustion fails to occur in the first cylinder because fuel delivery has been halted.

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Номер записи: 91
23-04-2009 дата публикации

Methods and systems for returning information from a coordinated torque control system

Номер: DE102008030519A1
Автор: Christopher E. Highland Whitney, Leonard G. Ann Arbor Wozniak, Meera West Bloomfield Raja, Richard B. Haslett Jess, Robert C. jun. Brighton Simon
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Ein Maschinensteuersystem umfasst ein erstes Drehmomentanforderungsmodul, das eine erste Drehmomentanforderung erzeugt, ein zweites Drehmomentanforderungsmodul, das eine zweite Drehmomentanforderung erzeugt, ein Drehmomentarbitrierungsmodul, ein Arbitrierungsrückmeldungsmodul und ein Drehmomentsteuermodul. Das Drehmomentarbitrierungsmodul wählt entweder die erste oder die zweite Drehmomentanforderung aus und gibt auf der Grundlage der unter der ersten und der zweiten Drehmomentanforderung ausgewählten Drehmomentanforderung ein arbitriertes Drehmoment aus. Das Arbitrierungsrückmeldungsmodul berichtet ein Statussignal an das erste Drehmomentanforderungsmodul. Das Statussignal besitzt einen ersten Wert, wenn die erste Drehmomentanforderung die unter der ersten und der zweiten Drehmomentanforderung ausgewählte Drehmomentanforderung ist. Das Drehmomentsteuermodul steuert eine Maschine, um das arbitrierte Drehmoment zu erzeugen. Die Leistungsquelle umfasst eine Brennkraftmaschine. An engine control system includes a first torque request module that generates a first torque request, a second torque request module that generates a second torque request, a torque arbitration module, an arbitration feedback module, and a torque control module. The torque arbitration module selects either the first or the second torque request and outputs an arbitrated torque based on the torque request selected among the first and second torque requests. The arbitration feedback module reports a status signal to the first torque request module. The status signal has a first value when the first torque request is the torque request selected among the first and second torque requests. The torque control module controls a machine to generate the arbitrated torque. The power source includes an internal combustion engine.

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Номер записи: 92
21-10-2010 дата публикации

Exhaust gas recirculation diagnostic for coordinated torque control systems

Номер: US20100263627A1
Автор: Christopher E. Whitney, Gregory J. York, Jeffrey M. Kaiser, Katie C. Bonasse
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A control system includes a throttle control module, an exhaust gas recirculation (EGR) control module, and a diagnostic control module. The throttle control module selectively maintains a desired throttle area when a vehicle is in a coastdown mode. The EGR control module opens an EGR valve when the desired throttle area is maintained. The diagnostic control module selectively diagnoses an error of an EGR system based on a pressure increase measured in an intake manifold of the vehicle when the EGR valve is open.

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Номер записи: 93
04-11-2010 дата публикации

Method and system for controlling torque during a vehicle launch condition

Номер: US20100280738A1
Автор: Christopher E. Whitney, Kristian KEARY, Richard B. Jess, Todd R. Shupe, Vivek Mehta
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A method and control module for controlling an engine includes a requested torque module that generates a requested torque and a maximum toque capacity module that determines a maximum torque capacity corresponding to a maximum torque capacity of the engine. A launch trim torque threshold determination module determines a launch trim torque threshold. A comparison module that compares the requested torque and the launch trim torque threshold. An output module that applies a fast rate limit to the requested torque up to the launch trim threshold when the requested torque is less than the launch trim torque threshold and a shower rate limited torque request when the requested torque is greater than the launch trim torque threshold.

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Номер записи: 94
03-01-2017 дата публикации

Airflow control systems and methods

Номер: US9534547B2
Автор: B. Jerry Song, Christopher E. Whitney, David A. White, Gerald J. Hysko, JR., Jeffrey M. Kaiser, Michael Livshiz
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

An engine control system for a vehicle, includes a delay and rate limit module, a throttle control module, a phaser control module, and an exhaust gas recirculation (EGR) control module. The delay and rate limit module applies a delay and a rate limit to a first torque request to produce a second torque request. The throttle control module determines a target throttle opening based on the second torque request and selectively adjusts a throttle valve based on the target throttle opening. The phaser control module determines target intake and exhaust phasing values based on the second torque request and selectively adjusts intake and exhaust valve phasers based on the target intake and exhaust phasing values, respectively. The EGR control module determines a target EGR opening based on the first torque request and selectively adjusts an EGR valve based on the target EGR opening.

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Номер записи: 95
11-05-2023 дата публикации

TORQUE RELIABILITY OF MPC-BASED POWERTRAIN CONTROL

Номер: DE102018102888B4
Автор: Bharath PATTIPATI, Christopher E. Whitney, James L. Worthing, Michael Livshiz
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Verfahren zum Steuern eines Antriebssystems eines Kraftfahrzeugs, das Verfahren umfassend:das Ermitteln eines anfänglichen ausgewählten Motorabtriebsdrehmoments durch eine modellprädikative Steuerung;das Ermitteln mindestens eines ersten minimalen akzeptablen Motorabtriebsdrehmoments und eines zweiten minimalen akzeptablen Motorabtriebsdrehmoments, wobei das erste minimale akzeptable Motorabtriebsdrehmoment auf einem angeforderten Motorabtriebsdrehmoment und einer vorbestimmten Motorabtriebsdrehmoment-Minimalkonstante basiert und das zweite minimal akzeptable Motorabtriebsdrehmoment auf einem angeforderten Achsdrehmoment und einer vorbestimmten Achsdrehmoment-Minimalkonstante basiert;das Ermitteln einer minimalen Drehmomentbegrenzung durch Auswählen eines der ersten und zweiten akzeptablen minimalen Motorabtriebsdrehmomente;das Ermitteln, ob der anfänglich ausgewählte Motorabtriebsdrehmomentwert kleiner als die minimale Drehmomentbegrenzung ist;wenn der anfänglich ausgewählte Motorabtriebsdrehmomentwert kleiner als die minimale Drehmomentbegrenzung ist, das Einstellen eines gewünschten Motorabtriebsdrehmomentwerts als die minimale Drehmomentbegrenzung;das Ermitteln mindestens eines ersten maximalen akzeptablen Motorabtriebsdrehmoments und eines zweiten maximalen akzeptablen Motorabtriebsdrehmoments, wobei das erste maximale akzeptable Motorabtriebsdrehmoment auf einem angeforderten Motorabtriebsdrehmoment und einer vorbestimmten Motorabtriebsdrehmoment-Maximalkonstante basiert und das zweite maximal akzeptable Motorabtriebsdrehmoment auf einem angeforderten Achsdrehmoment und einer vorbestimmten Achsdrehmoment-Maximalkonstante basiert;das Ermitteln einer maximalen Drehmomentbegrenzung durch Auswählen eines der ersten und zweiten maximal akzeptablen Motorabtriebsdrehmomente;das Ermitteln, ob der anfängliche ausgewählte Motorabtriebsdrehmomentwert größer ist als die maximale Drehmomentbegrenzung;wenn der anfänglich ausgewählte Motorabtriebsdrehmomentwert größer als ...

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Номер записи: 96
10-11-2011 дата публикации

MONITORING AND CONTROLLING A CYLINDER COMBUSTION POWER WITH TUNED TORQUE CONTROL

Номер: DE102011016723A1
Автор: Christopher E. Whitney, David S. Mathews, Eric B. Ferch, Jeffrey M. Kaiser, PahngRoc Oh, Timothy M. Karnjate, Zhong Li
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Ein Motorsteuersystem umfasst ein Störungsmodul, ein Drehmomentkorrekturmodul, ein Drehmoment-Zündfunkenmodul und ein Zündfunkenkorrekturmodul. Das Störungsmodul ermittelt einen Störungswert für einen früheren Verbrennungstakt eines Zylinders eines Motors basierend auf einer Drehung einer Kurbelwelle. Das Drehmomentkorrekturmodul ermittelt eine Drehmomentkorrektur für einen zukünftigen Verbrennungstakt des Zylinders selektiv basierend auf dem Störungswert. Das Drehmoment-Zündfunkenmodul ermittelt eine Zündfunkenkorrektur basierend auf der Drehmomentkorrektur, und es ermittelt einen unkorrigierten Zündfunkenzeitpunkt basierend auf einer Drehmomentanforderung. Das Zündfunkenkorrekturmodul ermittelt einen korrigierten Zündfunkenzeitpunkt basierend auf dem unkorrigierten Zündfunkenzeitpunkt und der Zündfunkenkorrektur, und es erzeugt einen Zündfunken während des zukünftigen Verbrennungstakts basierend auf dem korrigierten Zündfunkenzeitpunkt. An engine control system includes a fault module, a torque correction module, a torque spark module, and a spark correction module. The malfunction module determines a malfunction value for an earlier combustion stroke of a cylinder of an engine based on a rotation of a crankshaft. The torque correction module selectively determines a torque correction for a future combustion stroke of the cylinder based on the disturbance value. The torque spark module determines a spark correction based on the torque correction and determines an uncorrected spark timing based on a torque request. The spark correction module determines a corrected spark timing based on the uncorrected spark timing and the spark correction, and generates a spark during the future combustion cycle based on the corrected spark timing.

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Номер записи: 97
02-04-2015 дата публикации

Machine control system and method

Номер: DE102008030519B4
Автор: Christopher E. Whitney, jun. Simon Robert C., Leonard G. Wozniak, Richard B. Jess
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Maschinensteuersystem (114), umfassend: ein erstes Drehmomentanforderungsmodul (104, 194, 402-1, ..., 402-N, 412-1, ..., 412-M), das eine erste Drehmomentanforderung erzeugt; ein zweites Drehmomentanforderungsmodul (104, 194, 402-1, ..., 402-N, 412-1, ..., 412-M), das eine zweite Drehmomentanforderung erzeugt; ein Drehmomentarbitrierungsmodul (304, 306, 512), das entweder die erste oder die zweite Drehmomentanforderung auswählt und auf der Grundlage der unter der ersten und der zweiten Drehmomentanforderung ausgewählten Drehmomentanforderung ein arbitriertes Drehmoment ausgibt; ein Arbitrierungsrückmeldungsmodul (410, 630), das ein Statussignal an das erste Drehmomentanforderungsmodul (104, 194, 402-1, ..., 402-N, 412-1, ..., 412-M) berichtet, wobei das Statussignal einen ersten Wert besitzt, wenn die erste Drehmomentanforderung die unter der ersten und der zweiten Drehmomentanforderung ausgewählte Drehmomentanforderung ist; und ein Drehmomentsteuermodul (316, 320), das eine Leistungsquelle (102) steuert, um das arbitrierte Drehmoment zu erzeugen, wobei das erste Drehmomentanforderungsmodul (104, 194, 402-1, ..., 402-N, 412-1, ..., 412-M) ein Regelungsmodul (606) umfasst, das auf der Grundlage eines Fehler- oder Abweichungssignals einen Drehmomentversatz oder -ausgleich erzeugt, wobei das erste Drehmomentanforderungsmodul (104, 194, 402-1, ..., 402-N, 412-1, ..., 412-M) die erste Drehmomentanforderung auf der Grundlage des Drehmomentausgleichs erzeugt, wobei das Regelungsmodul (606) einen Integrator (624) umfasst, der das Abweichungssignal integriert, wobei die Arbeitsweise des Integrators (624) auf der Grundlage des Statussignals gesteuert wird und wobei auf der Grundlage des Statussignals verhindert wird, dass der Integator (624) in einer ersten Richtung und/oder in einer zweiten Richtung integriert.

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Номер записи: 98
05-11-2009 дата публикации

Cooridnated torque control operation with de-energized throttle

Номер: US20090276128A1
Автор: Christopher E. Whitney, Ning Jin, Paul A. Bauerle, Robert C. Simon, Jr., Todd R. Shupe
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

An engine control system comprises an air control module and a spark control module. The air control module controls a throttle valve based on a first desired torque when the throttle valve is in an operable state. The spark control module controls spark advance based on the first desired torque and a second desired torque when the throttle valve is in a fault state. The throttle valve is maintained in a predetermined fault position when in the fault state.

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Номер записи: 99
25-11-2010 дата публикации

Systems and methods for autostarting hybrid vehicles

Номер: DE102009037191A1
Автор: Birendra P. Novi Bhattarai, Cheryl A. Howell Williams, Christopher E. Highland Whitney, James B. Albion Nicholson, John L. Novi Lahti, Ning Novi Jin, Steven G. Davisburg Bryde, Travis R. Springboro Schwenke
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Ein Steuerungssystem für einen Motor enthält ein Motor-Steuerungsmodul (ECM), das in einem ersten Modus und einem zweiten Modus arbeitet. Das ECM erzeugt ein Leerlaufdrehzahlsignal und ein Getriebelastsignal, das auf einer Leerlaufdrehzahl des Motors basiert. Das Hybrid-Steuerungsmodul (HCM) erhöht ein Drehmoment eines Elektromotors, um eine aktuelle Drehzahl des Motors zu erhöhen, basierend auf dem Leerlaufdrehzahlsignal und dem Getriebelastsignal. Das HCM steuert die aktuelle Drehzahl, wenn es im ersten Modus ist. Das ECM steuert die aktuelle Drehzahl, wenn es im zweiten Modus ist. Das HCM transferiert eine Steuerung der aktuellen Drehzahl auf das ECM, wenn die aktuelle Drehzahl mit der Leerlaufdrehzahl übereinstimmt und/oder eine Verbrennungsdrehmomentabgabe des Motors gleich einem angeforderten Kurbelwellen-Ausgangsdrehmoment ist. A control system for an engine includes an engine control module (ECM) operating in a first mode and a second mode. The ECM generates an idle speed signal and a transmission load signal based on an idle speed of the engine. The hybrid control module (HCM) increases torque of an electric motor to increase an actual speed of the engine based on the idle speed signal and the transmission load signal. The HCM controls the current speed when it is in the first mode. The ECM controls the current speed when it is in the second mode. The HCM transfers control of the current speed to the ECM when the current speed matches the idle speed and / or a combustion torque output of the engine is equal to a requested crankshaft output torque.

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Номер записи: 100