Настройки

Укажите год
-

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

Подробнее
-

Мониторинг СМИ

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

Подробнее

Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Укажите год
Укажите год
Применить Всего найдено 2686. Отображено 100.
01-03-2012 дата публикации

Vehicle control apparatus

Номер: US20120053769A1
Автор: Atsushi Tabata, Kenta Kumazaki, Tooru Matsubara
Принадлежит: Toyota Motor Corp

A control apparatus for controlling a vehicle, the vehicle provided with: a rotating electrical machine capable of inputting or outputting a torque with respect to an input shaft; and a transmission, which is disposed between the input shaft and an output shaft coupled with an axle, which is provided with a plurality of engaging apparatuses, which transmits a torque between the input shaft and the output shaft, and which can establish a plurality of gear stages having mutually different transmission gear ratios in accordance with engagement states of the plurality of engaging apparatuses, the transmission gear ratio being a ratio between a rotational speed of the input shaft and a rotational speed of the output shaft, the vehicle control apparatus provided with: a detecting device for detecting a braking operation amount of a driver; and an input shaft torque controlling device for controlling a torque of the input shaft such that in cases where the detected braking operation amount changes in a reducing direction which promotes a reduction in a braking force applied to the vehicle in a coast regeneration speed change period in which the gear stage is changed at the time of coast regeneration of the rotating electrical machine, a change in torque of the output shaft accompanied by the change in the braking operation amount is suppressed.

Подробнее
Номер записи: 1
15-03-2012 дата публикации

Method and device for controlling an automatic freewheeling function in a vehicle

Номер: US20120065852A1
Автор: Anders Eriksson, Niklas Öberg
Принадлежит: VOLVO LASTVAGNAR AB

A method and device for controlling an automatic freewheeling function in a vehicle where a freewheeling function is active due to a prevailing freewheeling condition and where a control unit is programmed to: predict that the vehicle soon will travel in a steep downhill slope that is steeper compared to a prevailing downhill slope; simulate if less fuel will be consumed if the freewheeling function is inactivated in a a further position before the vehicle enters the steeper downhill slope, compared to if the vehicle enters the steeper downhill slope with the freewheeling function active; and inactivate the freewheeling function in the further position, that is, before the vehicle enters the steeper downhill slope if the simulation shows that less fuel will be consumed.

Подробнее
Номер записи: 2
02-08-2012 дата публикации

Method for controlling an automated shift gearbox

Номер: US20120196722A1
Автор: Juergen Benz, Marian Preisner
Принадлежит: Schaeffler Technologies AG and Co KG

A method for controlling a drivetrain in a motor vehicle which has an internal combustion engine with a crankshaft, an automated gearbox with engagable and disengagable gears and a gearbox input shaft and a gearbox output shaft which drives drive wheels, a friction clutch which connects the crankshaft and the gearbox input shaft in a separable manner and is operated in an automated fashion, and a control unit for controlling the drivetrain. For driving comfort, before the vehicle comes to a stop, a starting gear is engaged in an overrun mode such that, after opening the friction clutch, a synchronization of gearbox input and output shaft rotational speed of the starting gear is initiated at a gearbox input shaft rotational speed which is higher than a target rotational speed of the gearbox input shaft yielded by the transmission ratio of the starting gear between the gearbox input and output shaft.

Подробнее
Номер записи: 3
30-08-2012 дата публикации

Method for controlling a rolling or coasting function of a vehicle

Номер: US20120220424A1
Автор: Joachim Staudinger, Maik Würthner
Принадлежит: ZF FRIEDRICHSHAFEN AG

A method of controlling a rolling or a coasting function of a vehicle, such as a commercial vehicle, having a drive train including a drive motor, an automatic or automated transmission that is controllable by transmission controls, a controllable shifting mechanism for interrupting the flow of power in the drive train, and a driving speed control device. The flow of power in the drive train is interrupted in a suitable driving situation. In order for the rolling or the coasting function to be exploited as efficiently as possible, and still be terminated safely and comfortably, the flow of power in the drive train is restored depending on a selectable difference in speed (Δv_F_T) between the current vehicle speed (v_F) and a speed limit (v_T) set by the driving speed control device.

Подробнее
Номер записи: 4
25-10-2012 дата публикации

Power transmitting apparatuses

Номер: US20120270702A1
Автор: Akio Oishi, Jun Ishimura, Keiichi Ishikawa, Ryouhei Chiba, Shouji Asatsuke, Tatsuyuki Ohashi
Принадлежит: FCC Co Ltd

A power transmitting apparatus for a vehicle mounted with a torque converter and an idle-stop mechanism can be configured to improve fuel economy without cancelling a fuel-cut-ff during vehicle speed reduction and to reduce the manufacturing cost by eliminating an electrically-driven oil pump. A power transmitting apparatus can comprise a torque converter, a clutch mechanism, an oil pump, a continuously variable transmission, a clutch control device, an engine control device, and a flow control device. The flow control device can be configured to limit or prevent the supply of oil to the torque converter by the oil pump and to prioritize the supply of oil to the clutch mechanism and the continuously variable transmission when the vehicle speed is reduced below a predetermined value with fuel being cut off by the engine control device during vehicle speed reduction.

Подробнее
Номер записи: 5
15-11-2012 дата публикации

Vehicle control apparatus

Номер: US20120290188A1
Автор: Kenichi Okaya, Masashi Takagi, Michihito Shimada, Toshio Takaoka, Toshiya Oishi, Tsutomu Miyazaki, Yuki Minase
Принадлежит: Toyota Motor Corp

Disclosed is a vehicle control apparatus which can prevent a drivability of a vehicle from being deteriorated. When an ECU determines that an accelerator is “ON” and a brake is “ON”, the ECU determines whether or not the brake previously depressed is “OFF”. When the ECU determines that the brake previously depressed is “OFF” and that the vehicle is in the reduced speed state, the vehicle control apparatus is operative to execute an engine output reduction control process under the condition that the simultaneous depressions of the accelerator and brake pedals continues for less than 10 seconds and the vehicle speed is not less than 7 km/hr. When the simultaneous depressions of the accelerator and brake pedals continues for no less than 10 seconds, the ECU is operative to make an output reduction prohibition flag “ON” and not to execute the engine output reduction control process until a predetermined time elapses.

Подробнее
Номер записи: 6
07-02-2013 дата публикации

Management of operation of motor vehicle internal combustion engine and gearbox for leaving a motor vehicle freewheel running condition with internal combustion engine off

Номер: US20130035830A1
Автор: Alessandro Polimeno, Roberto Finizio
Принадлежит: Centro Ricerche Fiat SCpA

An automotive electronic control system for a motor vehicle powertrain comprising an internal combustion engine and a servo-actuated driveline. The electronic control system is configured to control the powertrain to cause stopping of the engine and disengagement of the driveline, whereby resulting in the motor vehicle entering a freewheel running condition with engine off, and cranking of the engine and engagement of the driveline, whereby resulting in the motor vehicle leaving the freewheel running condition with engine off. The electronic control system is further configured to control the driveline during an engine run-down consequent upon the motor vehicle entering the freewheel running condition with the the engine off, to cause engagement of a gear appropriate for inertial cranking of the engine before the latter leaves a self-sustaining operating condition, while a clutch of the driveline is kept engaged.

Подробнее
Номер записи: 7
21-03-2013 дата публикации

Power transmission control device for vehicle

Номер: US20130073131A1
Автор: Kazutaka Kobayashi, Takeshige Miyazaki
Принадлежит: Aisin AI Co Ltd

In this power transmission control device, an EV travel mode for traveling by using only an electric-motor driving torque in a state in which a clutch torque is maintained to zero, and an EG travel mode for traveling by using the internal-combustion-engine driving torque in a state in which the clutch torque is adjusted to a value larger than zero are selectively realized depending on a travel state. In a state in which the EV travel mode is selected, when it is determined that a vehicle speed is higher than a predetermined speed Vth, “a gear position to be realized” is changed depending on the travel state of the vehicle, and when it is determined that the vehicle speed is equal to or lower than the predetermined speed Vth, “the gear position to be realized” is maintained to a current gear position independently of the travel state of the vehicle.

Подробнее
Номер записи: 8
09-05-2013 дата публикации

COASTING CONTROL DEVICE

Номер: US20130116899A1
Автор: Arai Hiroyuki, Iwao Nobuyuki, Kobayashi Kazuhiko, Takama Kouhei, Yamamoto Yasushi
Принадлежит:

A coasting control device for avoiding dangerous modes such as tire lock up upon the end of coasting control. The device, which performs coasting control to disengage the clutch and to reduce the engine revolutions per minute (RPM), also prevents a gearshift operation during coasting control. 1. A coasting control device which performs coasting control to disengage a clutch and reduce the number of revolutions per minute of an engine to a number of idle revolutions per minute when the engine is doing no work for the outside of the engine while the vehicle is in motion , the coasting control device comprising gearshift prevention means for preventing a gearshift operation during coasting control.2. The coasting control device according to claim 1 , wherein the gearshift prevention means comprises:a lock mechanism capable of mechanically locking a shift lever; anda gearshift prevention control unit controlling the lock mechanism so that while coasting control is being performed, the shift lever is mechanically locked to prevent a gearshift operation and, while coasting control is not being performed, the shift lever is unlocked to allow a gearshift operation.3. The coasting control device according to claim 2 , wherein the lock mechanism is a shift-lock solenoid. The present invention relates to a coasting control device capable of avoiding dangerous modes such as tire locking up upon the end of coasting control.When the accelerator pedal of a vehicle is pressed while the clutch is disengaged, the accelerator (throttle) is opened to cause the engine to run at “idle” and the engine RPM (the number of revolutions of the engine) is stabilized at the engine RPM corresponding to the accelerator opening degree (accelerator position). At that point in time, the driving force generated by the engine and the internal resistance (friction) of the engine are in equilibrium and the engine output torque is 0. That is, the engine does no work for the outside the engine and fuel is ...

Подробнее
Номер записи: 9
30-05-2013 дата публикации

COASTING CONTROL DEVICE

Номер: US20130138313A1
Автор: Arai Hiroyuki, Iwao Nobuyuki, Kobayashi Kazuhiko, Takama Kouhei, Yamamoto Yasushi
Принадлежит:

A coasting control device capable of avoiding coasting control during running on road having a small coefficient of friction between a tire and a road surface (“low μ roads”) includes a low μ road running recognition unit which recognizes that a vehicle is running on a low μ road and a unit for prohibiting coasting control during low μ road running when the low μ road running recognition unit recognizes that the vehicle is running on a low μ road. 14-. (canceled)5. A coasting control device comprising:a coasting control execution unit that disengages a clutch in a driving situation in which an engine does no work for the outside and lowers an engine RPM so as to start coasting control;a low μ road running recognition unit that recognizes that a vehicle is running on a low μ road; anda unit for prohibiting coasting control during low μ road running that prohibits coasting control when the low μ road running recognition unit recognizes that the vehicle is running on a low μ road.6. The coasting control device according to claim 5 , further comprising:a speed sensor that detects a rotation speed of a driving wheel and a rotation speed of a non-driving wheel, whereinthe low μ road running recognition unit recognizes that the vehicle is running on a low μ road from a rotation speed difference between the driving wheel and the non-driving wheel.7. The coasting control device according to claim 5 , further comprising:an ABS control unit that detects a tire slip, whereinthe low μ road running recognition unit recognizes that the vehicle is running on a low μ road from a sip signal outputted by the ABS control unit.8. The coasting control device according to claim 5 , further comprising:a coasting control determination map to be referred to by a clutch rotation speed and an accelerator opening degree, whereinthe coasting control execution unit starts coasting control when plotted points of the clutch rotation speed and the accelerator opening degree on the coasting control ...

Подробнее
Номер записи: 10
25-07-2013 дата публикации

Entering and leaving a motor vehicle freewheel running condition with internal combustion engine off

Номер: US20130190998A1
Автор: Alessandro Polimeno, Carlo D'ambrosio, Roberto Finizio
Принадлежит: Centro Ricerche Fiat SCpA

An automotive electronic control system for a motor vehicle is provided. The automotive electronic control system is designed to cause the motor vehicle to enter a freewheel running condition with internal combustion engine off if the automotive electronic control system determines, based on received quantities indicative of operative conditions of the motor vehicle, occurrence of a driver-performable action indicative of the will of the driver to enter a freewheel running condition with internal combustion engine off and occurrence at or within a given time from the occurrence of the driver-performable action and the maintaining for a given time of specific predetermined entry conditions. The automotive electronic control system is further designed to cause the motor vehicle to leave a freewheel running condition with internal combustion engine off if the automotive electronic control system determines, based on the received quantities, occurrence of at least one of specific predetermined exit conditions.

Подробнее
Номер записи: 11
31-10-2013 дата публикации

REGENERATION CONTROL DEVICE FOR VEHICLE

Номер: US20130289830A1
Автор: KAMIYA Kohei, KATAKURA Shusaku, Murakami Kenichiro
Принадлежит:

A regeneration control device for vehicle including a generator for generating power by being driven by an engine and configured to convert kinetic energy of a vehicle into electrical energy by the generator includes a generated voltage control unit configured to variably control a generated voltage of the generator, a road traffic environment detection unit configured to detect a road traffic environment, a recommended deceleration calculation unit configured to calculate a recommended deceleration during coasting depending on the road traffic environment, and a regeneration control unit configured to convert the kinetic energy of the vehicle into the electrical energy by increasing the generated voltage of the generator as the recommended deceleration increases. 16-. (canceled)7. A regeneration control device for vehicle including:a generator to be driven by an engine, and a generated voltage control unit configured to variably control a generated voltage of the generator;', 'a road traffic environment detection unit configured to detect a road traffic environment;', 'a recommended deceleration calculation unit configured to calculate a recommended deceleration during coasting depending on the road traffic environment; and', 'a regeneration control unit configured to convert the kinetic energy of the vehicle into the electrical energy by increasing the generated voltage of the generator as the recommended deceleration increases;', 'wherein the regeneration control unit operates a load respond control for gradually increasing the generated voltage of the generator when an engine rotation speed is not higher than a predetermined rotation speed if the recommended deceleration is not larger than a normal permissible deceleration normally permitted during coasting and maintains the engine rotation speed at a rotation speed higher than the predetermined rotation speed by increasing the speed ratio of the continuously variable transmission so that the load respond ...

Подробнее
Номер записи: 12
05-12-2013 дата публикации

APPARATUS AND METHOD OF CONTROLLING MOTOR TORQUE FOR ENVIRONMENT FRIENDLY VEHICLE

Номер: US20130325230A1
Автор: Kim Sang Joon
Принадлежит:

Disclosed is a method of controlling motor torque of a vehicle capable of increasing vehicle mileage and improving fuel efficiency by adjusting regenerative torque of a motor according to a driving tendency of a driver when a vehicle is in a coasting mode by detecting a driving tendency of a driver by analyzing the number of brake pedal operations and engaging depth of a brake pedal for a predetermined period 1. An apparatus for controlling motor torque of a vehicle capable of performing regenerative braking , the apparatus comprising:a brake pedal sensor configured to detect when a brake pedal is operated and an engaging depth of the brake pedal; determine a driving tendency of a driver by analyzing the number of brake pedal operations and the engaging depth of the brake pedal; and', 'control an inverter to adjust regenerative torque of a motor according to the driving tendency of the driver when the brake pedal operation is detected during the driving in an EV (electric vehicle) mode or an HEV (hybrid electric vehicle) mode, 'a hybrid control unit configured to2. The apparatus of claim 1 , wherein the hybrid control unit is further configured to:calculate an average number of brake pedal operations by summing the number of brake pedal operations during a predetermined driving cycle; andcalculate an average of the engaging depth of the brake pedal to determine the driving tendency of the driver according to the average number of brake pedal operations and the average engaging depth of the brake pedal.3. The apparatus of claim 2 , wherein the hybrid control unit is further configured to:determine an aggressive driving tendency when the number of brake pedal operations exceeds a range of a predetermined reference number and the average engaging depth of the brake pedal exceeds a predetermined reference depth range.4. The apparatus of claim 3 , wherein the hybrid control unit is further configured to:control the inverter to increase the regenerative torque of the ...

Подробнее
Номер записи: 13
09-01-2014 дата публикации

Method for operating a vehicle during coasting

Номер: US20140012478A1
Автор: Rainer BARTSCH, Udo Schulz
Принадлежит: ROBERT BOSCH GMBH

A method for controlling a vehicle, including determining a speed curve on a coasting route, in order to let the vehicle on the coasting route coast from an actual speed to a setpoint speed, detecting an additional vehicle approaching the vehicle from behind on the coasting route, and raising the speed of the vehicle compared to the determined speed behavior on the coasting route, in order to produce a predetermined threshold distance from the additional vehicle.

Подробнее
Номер записи: 14
13-02-2014 дата публикации

Methods and systems for assisted direct start control

Номер: US20140045650A1
Автор: Alex O'Connor Gibson, Davor David Hrovat, Felix Nedorezov, HONG Jiang
Принадлежит: FORD GLOBAL TECHNOLOGIES LLC

Methods and systems are provided for reducing audible clunks and objectionable drive feel in vehicles including start/stop systems. In one example, a vehicle engine is shutdown during vehicle coasting. The vehicle engine is then restarted, while the vehicle is moving with a torque converter clutch disengaged. A transmission clutch pressure is then adjusted during the restart based on a torque converter output speed relative to a torque converter input speed.

Подробнее
Номер записи: 15
27-03-2014 дата публикации

METHOD AND SYSTEM FOR A VEHICLE

Номер: US20140088847A1
Автор: Abdul-Rasool Mustafa, Johansson Oskar, Ögren Mikael
Принадлежит:

A method for running a vehicle () that includes a combustion engine () which can selectively be connected to a driveshaft () to deliver driving force to the driveshaft () for propulsion of the vehicle (). When the vehicle () is in motion, determining whether the vehicle () is approaching a downgrade and, when it is approaching the downgrade, disconnecting the engine () from the driveshaft () before the vehicle () reaches the downgrade. Also a system and a vehicle are disclosed. 1. A method for running a vehicle , wherein the vehicle comprises a combustion engine and a driveshaft to which the engine can be selectively connected to deliver driving force to the driveshaft for propulsion of the vehicle , the method comprising:during running of the vehicle:determining whether the vehicle is approaching a downgrade;when the vehicle is determined to be approaching the downgrade, disconnecting the engine from the driveshaft before the vehicle reaches the downgrade;when the vehicle reaches the downgrade, determining whether the vehicle speed will reach a maximum permissible speed set for the vehicle when the vehicle is running with the engine disconnected from the driveshaft; andif it is determined that the vehicle will reach the maximum permissible speed set for the vehicle, running the vehicle on at least part of the downgrade with the engine connected to the driveshaft and with no fuel supply to the engine.2. A method according to claim 1 , further comprising:conducting the determining steps using at least one control unit situated in a central system of the vehicle.3. A method according to claim 1 , further comprising:{'sub': 'i', 'determining a first location (A) along travel of the vehicle at which the engine should be disconnected from the driveshaft.'}4. A method according to claim 3 , further comprising:{'sub': 1', 'i, 'determining the first location (A) based on determining the speed at which the vehicle will be travelling when the vehicle reaches the downgrade and ...

Подробнее
Номер записи: 16
07-01-2021 дата публикации

VEHICLE

Номер: US20210001855A1
Автор: Hirasawa Takahiko, Kaita Keiji
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

A vehicle includes a drive device for traveling, and a control device configured to control the drive device so that the vehicle travels with a target driving force based on an accelerator operation amount. The control device is configured to set the target driving force such that a change in the target driving force with respect to a change in the accelerator operation amount is gentler in a case where steady traveling is desired as compared with a case where the steady traveling is not desired. Therefore, in a case where the steady traveling is desired, a variation of a vehicle speed with respect to a slight variation of the accelerator operation amount can be gentle and continuous steady traveling can be facilitated. 1. A vehicle comprising:a drive device for traveling; anda control device configured to control the drive device so that the vehicle travels with a target driving force based on an accelerator operation amount,wherein the control device is configured to set the target driving force such that a change in the target driving force with respect to a change in the accelerator operation amount is gentler in a case where steady traveling is desired as compared with a case where the steady traveling is not desired.2. The vehicle according to claim 1 , wherein the control device is configured to determine that the steady traveling is desired in a case where a variation amount of the accelerator operation amount for a predetermined time is equal to or smaller than a first predetermined variation amount and a variation amount of a vehicle speed for the predetermined time is equal to or smaller than a second predetermined variation amount.3. The vehicle according to claim 1 , wherein the control device is configured to set a request driving force for traveling based on the accelerator operation amount and a vehicle speed or a driving force obtained by performing smoothing on the request driving force as the target driving force claim 1 , and determine that the ...

Подробнее
Номер записи: 17
04-01-2018 дата публикации

System and method for performing an engine stop and start for a rolling vehicle

Номер: US20180001896A1
Автор: Alexander O`Connor Gibson, HONG Jiang, Kirk Pebley, Matthew John Shelton, Steven Anatole Frait
Принадлежит: FORD GLOBAL TECHNOLOGIES LLC

Methods and systems for improving operation of a vehicle driveline that includes an engine and an automatic transmission with a torque converter are presented. In one non-limiting example, the engine may be stopped while a vehicle in which the engine operates is rolling. A transmission coupled to the engine may be shifted as the vehicle rolls so that vehicle response may be improved if a driver requests an increase of engine torque.

Подробнее
Номер записи: 18
03-01-2019 дата публикации

VEHICLE AND METHOD OF PROVIDING INFORMATION FOR THE SAME

Номер: US20190001983A1
Автор: PARK Joon Young
Принадлежит:

A method of guiding a coasting time point of a vehicle includes steps of detecting occurrence of an upcoming deceleration event, determining driver's coasting characteristics for each deceleration event based on information of the detected occurrence of an upcoming deceleration event and a vehicle driving state, and determining a coasting guidance time point based on a determined result of coasting characteristics corresponding to a type of the detected deceleration event. The method provides, to a driver, information of a time point at which the driver needs to release an accelerator pedal operation, in order to begin coasting at an appropriate time point when a deceleration situation is assumed to lie ahead. 1. A method of guiding a coasting time point of a vehicle , the method comprising steps of:detecting, by a deceleration event detecting device of the vehicle, occurrence of an upcoming deceleration event;determining, by a guidance information controller of the vehicle, driver's coasting characteristics for each deceleration event based on information of at least one previous deceleration event and a vehicle driving state; anddetermining, by the guidance information controller, a coasting guidance time point based on a determined result of coasting characteristics corresponding to a type of the detected deceleration event.2. The method according to claim 1 , wherein the step of determining driver's coasting characteristics is performed using information regarding a distance to a corresponding deceleration event when a driver releases an accelerator pedal operation for each deceleration event.3. The method according to claim 2 , wherein the step of determining a coasting guidance time point comprises determining a first point claim 2 , which is a point at which the driver releases the accelerator pedal operation on average.4. The method according to claim 3 , wherein the step of determining a coasting guidance time point comprises determining a second point by ...

Подробнее
Номер записи: 19
03-01-2019 дата публикации

CONTROL METHOD FOR COASTING OF ECO-FRIENDLY VEHICLE

Номер: US20190001984A1
Автор: Huh Jee Wook, Kim Do Hee, Sohn Dong Jin
Принадлежит:

A coasting control method of an eco-friendly vehicle includes steps of acquiring deceleration event information and road gradient information in front of a vehicle during driving, by a controller in the vehicle, determining target vehicle speed in a deceleration event in consideration of road gradient based on the deceleration event information and the road gradient information, by the controller, determining expected vehicle speed while the vehicle is decelerated in a coasting state, based on current vehicle speed, by the controller, determining a start location for starting coasting based on target vehicle speed in consideration of current vehicle speed of the vehicle and the road gradient and expected vehicle speed at a target location as a deceleration event location, by the controller, and operating an information provider for coasting guidance and coasting induction to a driver at a start location, by the controller. 1. A coasting control method of an eco-friendly vehicle , the method comprising steps of:acquiring, by a controller of the vehicle, deceleration event information and road gradient information in front of a vehicle during driving;determining, by the controller, target vehicle speed in a deceleration event in consideration of road gradient based on the deceleration event information and the road gradient information;determining, by the controller, expected vehicle speed while the vehicle is decelerated in a coasting state, based on current vehicle speed;determining, by the controller, a start location for starting coasting based on target vehicle speed in consideration of current vehicle speed of the vehicle and the road gradient and expected vehicle speed at a target location as a deceleration event location;operating, by the controller, an information provider for coasting guidance and coasting induction to a driver at a start location; andcontrolling, by the controller, a creep torque of a driving motor during coasting of the vehicle in a brake ...

Подробнее
Номер записи: 20
12-01-2017 дата публикации

Intelligent vehicle management system

Номер: US20170008525A1
Автор: Sung-Suk KO
Принадлежит: Individual

Disclosed herein is a system capable of calculating and analyzing energy loss in each of elements that consume energy of a vehicle and of managing the safety diagnosis and the potential regeneration energy of the vehicle based on the calculated and analyzed energy losses. In accordance with the intelligent vehicle management system according to an embodiment of the present invention, whether a vehicle is normally controlled is derived. If an abnormal control is determined, a warning signal is output to the vehicle in order to notify a driver of the necessity for repair and maintenance or the engine torque of the vehicle is limited. Accordingly, an accident attributable to abnormal control can be prevented. Furthermore, the expected braking distance of a vehicle being driven is derived so that the control unit can control the vehicle to keep a safe distance between the vehicle and an adjacent vehicle. And the potential regeneration energy during deceleration is also calculated and gathered into a specific server, which is used for the design of power plant capacity or the calculation of auto tax depending on individual driver's energy abuse.

Подробнее
Номер записи: 21
12-01-2017 дата публикации

CONTROL APPARATUS FOR VEHICLE

Номер: US20170008527A1
Автор: NISHIDA Hideyuki
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

A first control unit executes a valve stop inertial running including stopping an intake valve and an exhaust valve in a closed state during rotation of an output shaft, stopping supply of fuel to an engine, and setting a clutch in an engaged state to drive pistons of the engine by a rotational force from driving wheels. A second control unit executes a valve operation running including operating the intake valve and the exhaust valve during the rotation of the output shaft, and supplying the fuel to the engine based upon an intake conduit pressure. When a cancellation request is made during execution of the valve stop inertial running, a transient control unit operates the intake valve and the exhaust valve, and controls a throttle valve to an idling opening or less, thereby supplying a negative pressure to an intake passage. 1. A control apparatus for a vehicle configured to control a vehicle comprising a valve operation mechanism that can stop an intake valve and an exhaust valve in an engine in a closed state during rotation of an output shaft in the engine , and a clutch that can switch a power transmission route between the engine and a driving wheel between an engaged state and a disengaged state , comprising:a first control unit configured to execute a valve stop inertial running including stopping the intake valve and the exhaust valve in the closed state during the rotation of the output shaft, stopping supply of fuel to the engine, controlling a throttle valve of the engine to an idling opening or less, and setting the clutch in the engaged state to drive pistons of the engine by a rotational force from the driving wheel through the output shaft;a second control unit configured to execute a valve operation running including operating the intake valve and the exhaust valve during the rotation of the output shaft, and supplying the fuel to the engine; anda transient control unit configured to execute a transient running including operating the intake valve ...

Подробнее
Номер записи: 22
12-01-2017 дата публикации

METHOD AND APPARATUS OF CONTROLLING VEHICLE INCLUDING DRIVING MOTOR

Номер: US20170008529A1
Автор: Kim Sang Joon
Принадлежит:

A control method and apparatus of a vehicle including a drive motor are provided. The control apparatus includes a data detector that detects data to operate the vehicle and a controller that determines whether a braking condition is satisfied based on the data. The controller calculates a total braking amount and a regenerative braking allowance when the braking condition is satisfied and determines whether a shifting condition is satisfied when the braking condition is satisfied. A first actuator receives a control signal from the controller to adjust a hydraulic pressure supplied to each frictional element of the transmission and a second actuator receives the control signal from the controller to adjust the hydraulic pressure supplied to the wheel cylinder. An inverter receives the control signal from the controller to determine a switching operation of a switching element. 1. A method for controlling a vehicle including a drive motor , comprising:determining, by a controller, whether a braking condition is satisfied based on a vehicle speed, a position of an accelerator pedal, and a position of a brake pedal;determining, by the controller, whether a shifting condition is satisfied when the braking condition is satisfied;operating, by the controller, an inverter to increase torque of the drive motor to be maintained as a predetermined value when the shifting condition is satisfied;operating, by the controller, a first hydraulic pressure actuator to begin release of an off-going element and to begin engagement of the on-coming element when the torque of the drive motor becomes the predetermined value;calculating, by the controller, a friction braking torque that corresponds to a sum of a total braking torque corresponding to total braking amount and a coast regeneration torque eliminated as the torque of the drive motor is maintained as the predetermined value, and operating a second hydraulic pressure actuator to cause a wheel cylinder to generate the friction ...

Подробнее
Номер записи: 23
14-01-2016 дата публикации

ADJUSTING A HYBRID VEHICLE CRUISE CONTROL SPEED

Номер: US20160009277A1
Автор: Kava Chris Michael
Принадлежит:

An example method includes controlling a hybrid vehicle to maintain a set speed, and adjusting the set speed from a first value to a different, second value in response to a change in a road grade. 1. A method of adjusting a speed , comprising:controlling a hybrid vehicle to maintain a set speed;adjusting the set speed from a first value to a different, second value in response to a change in a road grade; andvarying an amount of the change in road grade required to cause the adjusting, the varying in response to a time elapsed since a last start-up of the engine.2. The method of claim 1 , wherein the adjusting comprises automatically adjusting.3. The method of claim 1 , wherein the adjusting is in response to a decreasing of the road grade.4. The method of claim 1 , wherein the second value is less than the first value.5. The method of claim 4 , further comprising coasting the hybrid vehicle when the hybrid vehicle moves from the set speed corresponding to the first value to the set speed corresponding to the second value.67.-. (canceled)8. The method of claim 1 , further comprising decreasing the change in road grade required to cause the adjusting as the time elapsed increases.9. The method of claim 4 , further comprising increasing the speed to a third value in response to the road grade increasing claim 4 , the third value greater than the second value.10. The method of claim 1 , further comprising increasing the second value back to the first value in response to the road grade increasing.11. The method of claim 1 , shutting off an internal combustion engine of the hybrid vehicle in response after the adjusting and maintaining the hybrid vehicle at the speed corresponding to the second value using exclusively an electric machine.12. The method of claim 1 , wherein the controlling is during a cruise control operation of the hybrid vehicle.13. A hybrid vehicle assembly claim 1 , comprising:a road grade detector to monitor a road grade; anda speed controller that ...

Подробнее
Номер записи: 24
14-01-2016 дата публикации

Continuously variable transmission

Номер: US20160009286A1
Автор: Tsunehiro Kobayashi
Принадлежит: Honda Motor Co Ltd

A stepless transmission 1 is provided for preventing drive wheels from being driven despite the driver's intention during vehicle deceleration. A control device 40 : when the required drive force of the vehicle is 0, controls the output rotational speed Ne of a travel drive source 50 to be Ne 2 , and controls the transmission gear ratio i of the transmission 1 so that the transmission 1 in the case where the Ne is Ne 1 changes from a first state to a second state; and when the vehicle speed V is less than a boundary speed Vgn, controls the ratio i to be a state maintaining transmission gear ratio ign that enables the first state to be maintained even during vehicle deceleration. In the second state a rotational drive force is transmitted from an input shaft 2 to an output shaft 3 . In the first state the transmission is prevented.

Подробнее
Номер записи: 25
14-01-2016 дата публикации

Method for Operating a Drive Train of a Motor Vehicle

Номер: US20160009287A1
Автор: PASENAU Thiemo
Принадлежит:

A method of operating a drive train of a motor vehicle is provided, wherein the drive train has a drive motor and an automatic or automated transmission connected between the drive motor and the drive wheels. The transmission automatically changes gear in an automatic mode. The transmission changes to a higher or lower gear in a manual mode on the basis of an up-shift or a down-shift requested by the driver via control element. At least in automatic mode, a coasting mode of the drive train, in which the operative connection between drive motor and drive wheels is separated, is engaged under defined operating conditions and the coasting mode is disengaged upon the driver requesting a downshift and the manual mode of the transmission is engaged. The coasting mode is maintained in automatic mode in the case of the driver requesting an up-shift during coasting mode. 1. A method of operating a drive train comprising a drive motor and an automatic or automated transmission coupled between the drive motor and drive wheels of a motor vehicle , whereinthe transmission automatically changes gear in an automatic mode of the transmission,the transmission is manually changed to a higher or lower gear dependent on an up-shift or a down-shift request by a driver via an operating element in a manual mode of the transmission,the method comprising the acts of:at least in the automatic mode, a shift of the transmission occurs in a presence of defined operating conditions to a coasting mode of the drive train in which an operative connection between the drive motor and the drive wheels is disengaged;when the driver requests a down-shift, the coasting mode is left and the transmission shifts to the manual mode of the transmission; andwhen the driver requests an up-shift in the coasting mode, the coasting mode is maintained in the automatic mode of the transmission.2. The method according to claim 1 , wherein in an up-shift requested by the driver during the coasting mode claim 1 , the ...

Подробнее
Номер записи: 26
27-01-2022 дата публикации

Coasting Regeneration Control Method and Device of Vehicle with Continuously Variable Valve Duration Engine

Номер: US20220024441A1
Автор: JUN Young Ho, YOON Jung Min
Принадлежит:

A coasting regeneration control method of a vehicle equipped with a continuously variable valve duration (CVVD) engine includes: determining, by an engine control unit (ECU), whether a current state of the vehicle satisfies coasting regeneration conditions; and entering, by the ECU, a coasting regeneration mode and performing regenerative braking when the current state of the vehicle satisfies the coasting regeneration conditions, in which when the coasting regeneration mode is entered, a throttle valve is fully opened so that the amount of intake air of the engine is maximized, a CVVD target duration is controlled to be maximized, and a closing time of an intake valve is delayed after a start point of time of a compression stroke, thereby decreasing pumping loss of the engine. 1. A coasting regeneration control method of a vehicle equipped with a continuously variable valve duration (CVVD) engine , in which an engine control unit (ECU) controls regenerative braking in the vehicle , the method comprising the steps of:determining, by the ECU, whether a current state of the vehicle satisfies coasting regeneration conditions; andentering, by the ECU, a coasting regeneration mode and performing regenerative braking when the current state of the vehicle satisfies the coasting regeneration conditions,wherein when the coasting regeneration mode is entered, a throttle valve is fully opened so that an amount of intake air of the engine is maximized and a CVVD target duration is controlled to be maximized, such that power generation torque of a belt driven motor (BDM) is controlled to be increased.2. The method of claim 1 , wherein the current state of the vehicle is an over-run state claim 1 , it is determined that the coasting regeneration conditions are satisfied.3. The method of claim 2 , wherein when output signals from an accelerator position sensor and a brake position sensor are zero claim 2 , and a vehicle speed and an engine RPM are over a corresponding set vehicle ...

Подробнее
Номер записи: 27
14-01-2021 дата публикации

TRAVEL CONTROL DEVICE AND TRAVEL CONTROL METHOD

Номер: US20210009132A1
Автор: TAKAHASHI Naoki
Принадлежит:

An automatic travel control unit () of this travel control device () makes a vehicle travel according to a travel schedule including driven travel and inertial travel. When an accelerator opening degree output from an accelerator sensor () exceeds a first threshold value, an inertial travel control unit () prohibits inertial travel, and when the accelerator opening degree is smaller than a second threshold value that is less than the first threshold value, the automatic travel control unit () performs a control operation so as to cancel the prohibition of inertial travel. 1. A travel control device , comprising:an automatic travel control section that causes a vehicle to travel in accordance with a travel schedule including driven travel and coasting travel; anda coasting travel control section that controls the automatic travel control section such that the coasting travel is prohibited when an accelerator opening degree exceeds a first threshold, or such that the prohibition of the coasting travel is canceled when the accelerator opening degree falls below a second threshold that is smaller than the first threshold.2. The travel control device according to claim 1 , wherein claim 1 ,after the accelerator opening degree has exceeded the first threshold, the coasting travel control section prohibits the coasting travel with respect to the automatic travel control section until the accelerator opening degree falls below the second threshold.3. The travel control device according to claim 1 , wherein claim 1 ,after the accelerator opening degree has fallen below the second threshold, the coasting travel control section cancels the prohibition of the coasting travel with respect to the automatic travel control section until the accelerator opening degree exceeds the first threshold.4. A travel control method claim 1 , comprising:causing a vehicle to travel in accordance with a travel schedule including driven travel and coasting travel; andprohibiting the coasting ...

Подробнее
Номер записи: 28
15-01-2015 дата публикации

Hybrid vehicle drive control device

Номер: US20150014072A1
Автор: Tomoyuki Maruyama
Принадлежит: Toyota Motor Corp

A drive control device for a hybrid vehicle is provided with a differential device including four rotary elements; and an engine, first and second electric motors and an output rotary member which are respectively connected to the four rotary elements. One of the four rotary elements is constituted by a rotary component of a first differential mechanism and a rotary component of a second differential mechanism selectively connected through a clutch, and one of the rotary components is selectively fixed to a stationary member through a brake. The drive control device comprises: an engine stop control portion configured to control the first and second electric motors so as to generate torques in respective opposite directions when the engine is required to be stopped during running of the hybrid vehicle in an engine drive mode in which the clutch is placed in an engaged state, the engine stop control portion reversing the directions of the torques generated by the first and second electric motors while the hybrid vehicle is in a coasting run, with respect to those generated while the hybrid vehicle is in a positive driving run.

Подробнее
Номер записи: 29
15-01-2015 дата публикации

Velocity-Regulating System Having a Touch-Sensitive Control Element

Номер: US20150014075A1
Автор: SPANNHEIMER Helmut
Принадлежит:

A velocity-regulating system for motor vehicles has an electronic control device that produces control signals for regulating the velocity of the motor vehicle at a pre-specified target velocity and/or at a pre-specified distance from a preceding target object. The velocity-regulating system has an operating element whose actuation causes an intervention that influences the velocity regulation. The operating element is embodied as a touch-sensitive button that, when the button is pressed, produces a first intervention that influences the velocity regulation, and that, when the button is only touched, for the period during which button is touched, produces a second intervention that influences the active velocity regulation. Once the touching has ended, the original velocity regulation is continued. 1. A velocity-regulating system for motor vehicles comprising an electronic control device that produces control signals for regulating the velocity of the motor vehicle at a pre-specified target velocity and/or at a pre-specified distance from a preceding target object , wherein the velocity-regulating system further comprises an operating element whose actuation causes an intervention that influences the velocity regulation , wherein the operating element is embodied as a touch-sensitive button that , when the button is pressed , is configured to produce a first intervention that influences the velocity regulation , and that , when the button is touched , for the period during which button is touched , is further configured to produce a second intervention that influences the active velocity regulation , wherein once the touching has ended , the original velocity regulation is continued.2. The velocity-regulating system in accordance with claim 1 , wherein the operating element is a first operating element for turning on and/or turning off and/or interrupting the velocity regulation claim 1 , and that claim 1 , when the button is pressed claim 1 , interrupts the active ...

Подробнее
Номер записи: 30
03-02-2022 дата публикации

METHOD OF CONTROLLING ENGINE AND TRANSMISSION OF HYBRID VEHICLE

Номер: US20220032901A1
Автор: Hwang Tae Won, Lee Jaebin, PARK Jun Sung
Принадлежит:

A method of controlling an engine and a transmission of a vehicle, which is a hybrid vehicle, includes the following steps that are carried out by a controller: determining whether the vehicle is under NCC (Neutral Coasting Control), determining whether an engine RPM reaches an engine RPM control point if it is determined that the NCC is in effect, determining an RPM and a gear stage of a vehicle transmission if it is determined that the engine RPM has reached the engine RPM control point, determining an engine target RPM of the vehicle, determining whether the engine RPM has reached a mild hybrid starter & generator (MHSG) control point, and controlling the MHSG according to a condition if it is determined that the engine RPM has reached the MHSG control point. 1. A method of controlling an engine and a transmission of a vehicle , comprising:determining, by a controller, whether the vehicle is under NCC (Neutral Coasting Control);determining, by the controller, whether an engine RPM reaches an engine RPM control point if it is determined that the NCC is in effect;determining, by the controller, an RPM and a gear stage of the transmission if it is determined that the engine RPM has reached the engine RPM control point;determining, by the controller, an engine target RPM of the vehicle;determining, by the controller, whether the engine RPM has reached a mild hybrid starter & generator (MHSG) control point; andcontrolling the MHSG according to a condition if it is determined that the engine RPM has reached the MHSG control point.2. The method of claim 1 , further comprising:after determining, by the controller, whether the engine RPM has reached the MHSG control point,determining, by the controller, whether the engine RPM has slipped compared to the engine target RPM if it is determined that the engine RPM has not reached the MHSG control point;performing, by the controller, proportional-integral-derivative (PID) control to follow the engine target RPM if the ...

Подробнее
Номер записи: 31
03-02-2022 дата публикации

CONTROL DEVICE FOR VEHICLE AND CONTROL METHOD FOR VEHICLE

Номер: US20220032915A1
Автор: KIM Chadol, LEE Jonghwan, Utagawa Tomohiro
Принадлежит:

A controller includes a control unit which is configured to execute a coast stop control. The coast stop control is configured to perform automatic stopping of the drive source while the vehicle is traveling, when a permitting condition is satisfied, the permitting condition including a condition that a speed ratio R of the variator is lower than a first threshold R while the lock-up clutch is in an engaged phase. The control unit is configured to prohibit execution of the coast stop control in a case in which an input-output rotation speed difference of the torque converter is equal to or more than a predetermined value when the lock-up clutch is in the engaged phase. 1. A control device for a vehicle configured to control a vehicle provided with:a drive source; anda continuously variable transmission having a torque converter disposed downstream of the drive source, the torque converter having a lock-up clutch, and a variator disposed downstream of the torque converter,the control device comprisinga control unit configured to execute a coast stop control, the coast stop control configured to perform automatic stopping of the drive source while the vehicle is traveling, when a permitting condition is satisfied, the permitting condition including a condition that a speed ratio of the variator is lower than a first threshold while the lock-up clutch is in an engaged phase, whereinthe control unit is configured to prohibit execution of the coast stop control in a case in which an input-output rotation speed difference of the torque converter is equal to or more than a predetermined value when the lock-up clutch is in the engaged phase.2. The control device for a vehicle according to claim 1 , whereinthe control unit executes the coast stop control when a permitting condition is satisfied, the permitting condition including a condition that the speed ratio of the variator is lower than a second threshold while the lock-up clutch is in a disengaged phase,{'b': '1', 'the ...

Подробнее
Номер записи: 32
18-01-2018 дата публикации

METHOD FOR OPERATING A LONGITUDINALLY GUIDING DRIVER ASSISTANCE SYSTEM OF A MOTOR VEHICLE AND MOTOR VEHICLE

Номер: US20180015920A1
Автор: BRÜCKLMAIER Florian, Held Ralf, Schuberth Stefan
Принадлежит:

Method for operating a longitudinal driver assistance system () of a motor vehicle () which is designed to regulate the speed of the motor vehicle () to a control speed, wherein—depending on environment data describing the operating environment in which the motor vehicle () is currently operated—the control speed can be changed from a desired speed () provided by a driver to a target speed () (which is provided for an upcoming operating environment () and/or can be determined from the environment data), wherein, when there is a change of the desired speed () to a new target speed () for an upcoming operating environment (), for a predetermined time period and/or a predetermined distance in the upcoming operating environment (), an intermediate speed () deviating from the target speed () in the direction of the current speed of the motor vehicle () is initially regulated to, which intermediate speed () is between the current speed of the motor vehicle () and the target speed (), before the target speed () is regulated to after the time period expires or before the distance is traversed. 1. A method , comprising:operating a longitudinal driver assistance system of a motor vehicle which is designed to regulate the speed of the motor vehicle to a control speed, wherein—depending on environment data describing the operating environment in which the motor vehicle is currently operated—the control speed can be changed from a desired speed provided by a driver to a target speed (which is provided for an upcoming operating environment and/or can be determined from the environment data), when there is a change of the control speed to a new target speed for an upcoming operating environment, for a predetermined time period and/or a predetermined distance in the upcoming operating environment, an intermediate speed deviating from the target speed in the direction of the current speed of the motor vehicle is initially regulated to, which intermediate speed is between the current ...

Подробнее
Номер записи: 33
17-01-2019 дата публикации

Driver Assistance System in a Motor Vehicle

Номер: US20190016335A1
Автор: Andreas Lechner, Stefan Knoller, Walter Kagerer
Принадлежит: Bayerische Motoren Werke AG

A driver assistance system in a motor vehicle, by which system, when the cruise control is activated, a predefined target speed is maintained essentially constantly via an electronic control device and sensors connected thereto. Depending on a control error with respect to the predefined speed, a drive system and/or a brake system is actuated with the aim of compensating the control error. The electronic control device is configured such that when a coasting mode is present with the cruise control actuated the current speed is detected by way of the sensors and the coasting mode is maintained despite a target-speed-dependent maximum permissible speed having been reached.

Подробнее
Номер записи: 34
21-01-2016 дата публикации

Vehicle control apparatus

Номер: US20160017825A1
Автор: Shigeru Maeda, Tomohisa Ose
Принадлежит: Denso Corp

A vehicle control apparatus includes a condition determination section that determines whether or not an execution permission condition to permit coasting of a vehicle is satisfied, a first control section that causes the vehicle to shift to a first inertia running state by stopping the engine and disengaging the clutch device when the execution permission condition is determined to be satisfied, an auxiliary drive request determination section that determines whether or not an auxiliary drive request to drive the auxiliary has occurred, and a second control section that causes the vehicle to shift to a second inertia running state by starting the engine keeping the clutch device disengaged when the auxiliary drive request is determined to have occurred while the vehicle is running in the first inertia running state.

Подробнее
Номер записи: 35
21-01-2016 дата публикации

VEHICLE CONTROL APPARATUS

Номер: US20160017939A1
Автор: Maeda Shigeru
Принадлежит:

A vehicle control apparatus includes a first control section that shifts a vehicle from a normal running state to a coasting state by disengaging the clutch device of the vehicle when a predetermined execution condition is satisfied, a second control section that releases the coasting state when a brake operation or an accelerator operation is performed by a vehicle driver while the vehicle is in the coasting state, and an operation amount determination section that determines whether or not an operation amount of a brake operation or an accelerator operation performed while the vehicle is in the coasting state exceeds a release threshold. The second control section releases the coasting state if the operation amount is determined to exceed the release threshold, and does not release the coasting state if the operation amount is determined not to exceed the release threshold. 1. A vehicle control apparatus for a vehicle including an engine as a motive power source thereof and a clutch device provided in a power transmission path connected with an output shaft of the engine , comprising:a first control section that shifts the vehicle from a normal running state to a coasting state by disengaging the clutch device when a predetermined execution condition is satisfied;a second control section that releases the coasting state when a brake operation or an accelerator operation is performed by a vehicle driver while the vehicle is in the coasting state; andan operation amount determination section that determines whether or not an operation amount of a brake operation or an accelerator operation performed while the vehicle is in the coasting state exceeds a release threshold, whereinthe second control section releases the coasting state if the operation amount is determined to exceed the release threshold, and does not release the coasting state if the operation amount is determined not to exceed the release threshold.2. The vehicle control apparatus according to claim 1 ...

Подробнее
Номер записи: 36
16-01-2020 дата публикации

APPARATUS, METHOD AND COMPUTER PROGRAM FOR CONTROLLING A VEHICLE

Номер: US20200017110A1
Автор: HERRING Jonathan, VALERO Thomas
Принадлежит:

A method, apparatus and computer program for controlling connection of a driveline within a vehicle (), the method comprising: detecting a deceleration and/or brake demand while the vehicle is operating in a coasting mode and the vehicle speed is above a threshold speed, determining whether the driveline can be reconnected within a threshold time and controlling the driveline so that the driveline is not reconnected if it is determined that the driveline cannot be reconnected within the threshold time. The method alternatively comprising detecting a deceleration and/or brake demand while the vehicle is operating in a coasting mode and the vehicle speed is above a threshold speed, determining the vehicle's deceleration, determining a threshold deceleration, determining whether the vehicle's deceleration is greater or less than the threshold deceleration and controlling the driveline so that the driveline is not reconnected if the vehicle's deceleration is greater than the threshold deceleration. 141-. (canceled)42. A method of controlling connection of a driveline within a vehicle , the method comprising:detecting or receiving an indication of at least one demand from the group consisting of a deceleration demand and a brake demand while the vehicle is operating in a coasting mode in which the driveline is disconnected and a vehicle speed is above a threshold speed;determining a deceleration of the vehicle or receiving an indication of the deceleration of the vehicle;determining a threshold deceleration;determining whether the deceleration of the vehicle is greater or less than the threshold deceleration; andcontrolling the driveline so that the driveline is not reconnected if the deceleration of the vehicle is greater than the threshold deceleration.43. The method as claimed in claim 42 , comprising controlling the driveline so that the driveline is reconnected if it is determined that the deceleration of the vehicle is less than the threshold deceleration.44. The ...

Подробнее
Номер записи: 37
21-01-2021 дата публикации

VEHICLE CONTROL DEVICE AND VEHICLE CONTROL METHOD

Номер: US20210016775A1
Автор: Hayashi Satoshi, ISHIGURO Shinichi, NATSUMI Kouki, TAKAHASHI Naoki
Принадлежит:

A vehicle control device comprising: a balance gradient calculation unit configured to calculate a balance gradient that is a gradient at which a propulsive force of the vehicle and a resistance force applied to the vehicle are balanced when the vehicle travels in a gear-in coasting state in which an engine is connected to a gear and the vehicle travels without supplying fuel to the engine, in a case where a traveling state of the vehicle is a neutral coasting state; and a traveling control unit configured to: switch, based on the calculated balance gradient and a specified road gradient, the traveling state of the vehicle from the neutral coasting state to the gear-in coasting state in a case where the traveling state of the vehicle is the neutral coasting state; and end, the gear-in coasting state when determining that an end condition is satisfied. 1. A vehicle control device comprising an electronic control unit configured to:specify a road gradient of a section from a position of a vehicle to a position ahead by a predetermined distance from the position of the vehicle on a road on which the vehicle travels;calculate a balance gradient that is a gradient at which a propulsive force of the vehicle and a resistance force applied to the vehicle are balanced when the vehicle travels in a gear-in coasting state in which an engine is connected to a gear and the vehicle travels without supplying fuel to the engine, the balance gradient being calculated in a case where a traveling state of the vehicle is a neutral coasting state that is a state of traveling without connecting the engine to the gear; andswitch, based on the calculated balance gradient and the specified road gradient, the traveling state of the vehicle from the neutral coasting state to the gear-in coasting state in a case where the traveling state of the vehicle is the neutral coasting state; determine whether an end condition of the gear-in coasting state is satisfied after a predetermined time has ...

Подробнее
Номер записи: 38
21-01-2021 дата публикации

Method And System For Controlling The Speed Of A Vehicle

Номер: US20210018932A1
Автор: BOTTENSEK Joseph B., HILLE David G., Lan Chun, MINICK Jacob J., SCHERER Jacob D., Taylor Scott D., WAGNER Duane D.
Принадлежит:

A system for regulating the speed of a vehicle includes defining a first border for a first geographic region. The border has a first speed within the border and a second speed outside of the border. The system includes determining a first velocity of the vehicle including a vehicle speed and direction of the vehicle approaching the border. The difference between the vehicle speed and the second speed is the calculated, as is a distance between the vehicle and the border. If the difference between the vehicle speed and the second speed divided by the distance is greater than a predetermined value, the vehicle is decelerated at a rate so that the vehicle will have a second speed when the vehicle reaches the border. 1. A method of regulating a speed of a vehicle relative to a border within a geographic region:receiving an input regarding the geographic region to define the border of the area;determining a first vehicle speed of a vehicle within the border;determining a distance between the vehicle and the border along a direction of travel of the vehicle;calculating a difference between the first vehicle speed within the border and a recalled second speed allowed outside the border; andtransmitting a signal so that the vehicle will have the second speed when the vehicle reaches the border in the direction of travel.2. The method of claim 1 , further comprising:determining the direction of travel.3. The method of claim 1 , wherein transmitting the signal includes a deceleration signal and occurs when the distance between the vehicle and the border is greater than a predetermined value relative to the difference between the first vehicle speed and the recalled second speed.4. The method of claim 1 , further comprising:executing instructions with a processor on the vehicle to transmit the signal.5. The method of claim 1 , wherein the signal is a deceleration signal to cause the vehicle to decelerate.6. The method of claim 1 , wherein determining the distance between the ...

Подробнее
Номер записи: 39
25-01-2018 дата публикации

Travel control device

Номер: US20180022336A1
Автор: Masuhiro Kondo, Noriaki Ikemoto, Takahiro Narita, Youhei Morimoto, Yuutarou ITOU
Принадлежит: Denso Corp

A travel control device repeats a burn control that accelerates a vehicle at a target acceleration until speed of the vehicle reaches an upper limit speed of a vehicle speed range and a coasting control that makes the vehicle travel by means of inertia until the speed of the vehicle reaches a lower limit speed of the vehicle speed range. Further, a vehicle speed width that is a width of the vehicle speed range and the target acceleration are changed based on calculated travel resistance.

Подробнее
Номер записи: 40
23-01-2020 дата публикации

TRAVEL CONTROL DEVICE, VEHICLE, AND TRAVEL CONTROL METHOD

Номер: US20200023844A1
Автор: TAKAHASHI Naoki
Принадлежит: Isuzu Motors Limited

Provided are a travel control device, a vehicle, and a travel control method that ensure safety in cases of a possible lane departure. This travel control device is equipped with: a travel control unit that switches between and executes a constant speed travel control for causing a vehicle to travel at a target speed and a coasting control for causing the vehicle to travel by inertia; and a switching control unit that, in cases in which it has been determined by a lane departure warning unit that there is a risk that the vehicle will depart from the travel lane while executing the constant speed travel control or the coasting control, controls the travel control unit to execute the constant speed travel control without executing the coasting control for a prescribed period of time. 1. A travel control device , comprising:a travel control section that switches between a constant velocity traveling control for causing a vehicle to travel at a target vehicle velocity and a coasting control for allowing the vehicle to travel by inertia, anda switching control section that controls the travel control section to execute the constant velocity traveling control without executing the coasting control when the vehicle is likely to depart from a traveling lane under the constant velocity traveling control or the coasting control.2. The travel control device according to claim 1 , wherein the switching control section controls the travel control section to execute the constant velocity traveling control without executing the coasting control until a predetermined time elapses from a point at which it is determined that the vehicle is likely to depart from the traveling lane or a point at which an alarm for notifying the likelihood of departure from the traveling lane is output.3. The travel control device according to claim 2 , whereinthe travel control section determines whether or not a starting condition of the coasting is satisfied when the predetermined time has elapsed, ...

Подробнее
Номер записи: 41
23-01-2020 дата публикации

Travel control device, vehicle, and travel control method

Номер: US20200023847A1
Автор: Masaichi TAKAHASHI, Naoki Takahashi
Принадлежит: Isuzu Motors Ltd

Provided are a travel control device, a vehicle, and a travel control method that reduce driver discomfort while making it possible to further improve the fuel economy of the vehicle. This travel control device controls switching of vehicle travel between propulsion travel whereby the vehicle is made to travel while maintaining the vehicle speed at a target speed and coasting travel whereby the vehicle is made to travel by inertia, and is equipped with a travel control unit that, in cases in which the vehicle speed during coasting travel has exceeded the allowable maximum speed of a prescribed range, switches travel of the vehicle from coasting travel to propulsion travel and causes the vehicle to brake, and once the vehicle speed has decreased to a prescribed speed that is above the target speed, releases braking of the vehicle.

Подробнее
Номер записи: 42
23-01-2020 дата публикации

DEVICE AND METHOD FOR OPTIMIZING THE ELECTRICAL POWER GENERATED BY AN ELECTRIC MACHINE IN THE COASTING MODE OF A VEHICLE

Номер: US20200023848A1
Автор: Kraus Benedikt
Принадлежит:

A device for optimizing the electrical power generated by an electric machine in the coasting mode of a vehicle includes a module for computing a total regenerative torque or a variable proportional thereto, on the basis of which the electric machine is operated in generator mode. The module is configured to: compare the wheel slip that is present at at least one wheel of the vehicle to a predefined threshold value; reduce the total regenerative torque by a small amount when the ascertained wheel slip is less than the predefined threshold value; and increase the total regenerative torque by a small amount when the ascertained wheel slip is greater than the predefined threshold value. The reduction or increase takes place iteratively with multiple successive iteration steps. 1. A device for optimizing electrical power generated by an electric machine in a coasting mode of a vehicle , the device comprising: compare a wheel slip that is present at at least one wheel of the vehicle to a predefined threshold value;', 'iteratively reduce, in a plurality of successive iteration steps, a total regenerative torque or a variable proportional to the total regenerative torque by a reduction amount when the ascertained wheel slip is less than the predefined threshold value; and', 'iteratively increase, in a plurality of successive iteration steps, the total regenerative torque or the variable by an increase amount when the ascertained wheel slip is greater than the predefined threshold value;, 'a processor, wherein the processor is configured towherein the electric machine is operable in a generator mode based on the total regenerative torque or the variable.2. The device of claim 1 , wherein the processor is configured to:ascertain, based on absolute values of the reduction amounts or increase amounts ascertained in the individual iteration steps, a correction value with which a predefined allowable regenerative torque is corrected; andascertain the total regenerative torque or ...

Подробнее
Номер записи: 43
23-01-2020 дата публикации

SHIFT CONTROL DEVICE AND SHIFT CONTROL METHOD FOR VEHICLE

Номер: US20200023849A1
Автор: Araki Toshimitsu, Endo Yasuhiro, HONMA Tomoaki, KUROIWA Hiroshi
Принадлежит:

A shift control device for a vehicle includes: an engine; a shift mechanism disposed between the engine and driving wheels; a shift control section configured to control a transmission gear ratio of the shift mechanism; and a fuel cut control section configured to stop a fuel supply to the engine, at least when an accelerator pedal is in a release state, and when an engine speed is equal to or greater than a predetermined rotation speed, the shift control section being configured to perform a minimum rotation speed restriction control to control the transmission gear ratio of the shift mechanism so that the minimum rotation speed of the engine is equal to or greater than the predetermined rotation speed regardless of a vehicle front condition and an accelerator operation condition. 1. A shift control device for a vehicle comprising:an engine;a shift mechanism disposed between the engine and driving wheels;a shift control section configured to control a transmission gear ratio of the shift mechanism; anda fuel cut control section configured to stop a fuel supply to the engine, at least when an accelerator pedal is in a release state, and when an engine speed is equal to or greater than a predetermined rotation speed,the shift control section being configured to perform a minimum rotation speed restriction control to control the transmission gear ratio of the shift mechanism so that the minimum rotation speed of the engine is equal to or greater than the predetermined rotation speed regardless of a vehicle front condition and an accelerator operation condition.2. The shift control device for the vehicle as claimed in claim 1 , wherein the shift control section is configuredto set a target engine speed when the minimum rotation speed restriction control is performed, to a restriction minimum rotation speed obtained by adding a predetermined value to the predetermined rotation speed,to set the predetermined rotation speed to a rotation speed which is used as an engine ...

Подробнее
Номер записи: 44
28-01-2021 дата публикации

METHOD AND DEVICE FOR VEHICLE PARKING CONTROL

Номер: US20210024057A1
Автор: DING Feng, KONG Chufan, Wu Nan
Принадлежит:

The present disclosure provides a method and a device for vehicle parking control. The method includes following steps performed according to a predetermined time period until the vehicle stops at an end point: determining () a target position and a target speed when the vehicle arrives at the target position based on a current speed of the vehicle and a distance between a current position and the end point, the target position being on a road where the vehicle is located and in front of the vehicle; determining () a deceleration motion mode for the vehicle based on the current speed of the vehicle and the target speed; and performing () braking control for the vehicle in accordance with a vehicle braking strategy corresponding to the deceleration motion mode. The method can solve the problem in the related art associated with inaccurate vehicle parking control and uncomfortable experience. 1. A method for vehicle parking control , comprising following steps performed according to a predetermined time period until the vehicle stops at an end point:determining a target position and a target speed when the vehicle arrives at the target position based on a current speed of the vehicle and a distance between a current position and the end point, the target position being on a road where the vehicle is located and in front of the vehicle;determining a deceleration motion mode for the vehicle based on the current speed of the vehicle and the target speed; andperforming braking control for the vehicle in accordance with a vehicle braking strategy corresponding to the deceleration motion mode.2. The method of claim 1 , wherein said determining the deceleration motion mode for the vehicle based on the current speed of the vehicle and the target speed comprises:determining whether the current speed is greater than a predetermined first speed threshold; andif so: determining the deceleration motion mode for the vehicle as a deceleration mode; orotherwise: determining whether ...

Подробнее
Номер записи: 45
28-01-2021 дата публикации

System and method for controlling vehicle during coast

Номер: US20210024073A1
Автор: Rajit Johri
Принадлежит: FORD GLOBAL TECHNOLOGIES LLC

A vehicle includes a traction battery and a powertrain. The powertrain including at least one traction motor electrically connected to the battery such that the traction motor discharges the battery when producing positive torque to propel the vehicle and recharges the battery when producing negative torque to slow the vehicle. A vehicle controller is programmed to execute coast (lift-pedal) controls that reduce the charge rate of the battery based on a ratio of energy capacity of the battery to kinetic energy of the vehicle.

Подробнее
Номер записи: 46
02-02-2017 дата публикации

CONTROL DEVICE FOR VEHICLE

Номер: US20170028990A1
Автор: Yokokawa Takahiro
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

A clutch disposed between an engine and an automatic transmission and including a first engagement element connected to the engine and a second engagement element connected to the automatic transmission. The electronic control unit is configured to, when a predetermined condition is satisfied, execute predetermined control in which the engine is stopped, the clutch is disengaged, and the vehicle is caused to travel. The electronic control unit is configured to start the engine when the predetermined condition is not satisfied during execution of the predetermined control, and execute downshift of the automatic transmission such that the rotational speed of the second engagement element becomes equal to or higher than a predetermined rotational speed when the predetermined condition is not satisfied during the execution of the predetermined control and the rotational speed of the second engagement element is lower than the predetermined rotational speed, and then engage the clutch. 1. A control device for a vehicle , the vehicle including: an engine , an automatic transmission , and a clutch disposed between the engine and the automatic transmission , the clutch including a first engagement element connected to the engine and a second engagement element connected to the automatic transmission ,the control device comprising:an electronic control unit configured to(i) when a predetermined condition is satisfied, execute predetermined control in which the engine is stopped, the clutch is disengaged, and the vehicle is caused to travel,(ii) restart the engine before engaging the clutch, when the predetermined condition is not satisfied during execution of the predetermined control, and(iii) execute a downshift of the automatic transmission such that a rotational speed of the second engagement element becomes equal to or higher than a predetermined rotational speed when the predetermined condition is not satisfied during the execution of the predetermined control and the ...

Подробнее
Номер записи: 47
01-02-2018 дата публикации

METHOD OF CONTROLLING COASTING OF VEHICLE

Номер: US20180029599A1
Автор: Cho Jae Hoon, CHO Jin Woo, KIM Tae Hyuck
Принадлежит: HYUNDAI MOTOR COMPANY

A method of controlling coasting of a vehicle, may include a preparing step of measuring an interval between an objective vehicle and a foregoing vehicle traveling ahead of the objective vehicle. A starting step of calculating a distance moved by coasting for a first predetermined time from a current speed of the objective vehicle and of starting coasting when the calculated movement distance is larger than the interval measured in the preparing step. An ending step of calculating a distance moved by coasting for a second predetermined time from the current speed of the objective vehicle after coasting is started in the starting step, and of giving an instruction to end coasting when the calculated movement is larger than the interval measured in the preparing step, in which the time T1 is longer than the time T2. 1. A method of controlling coasting of a vehicle , the method comprising:a preparing step of measuring an interval between an objective vehicle and a foregoing vehicle traveling ahead of the objective vehicle;a starting step of determining a distance moved by coasting during a first predetermined time from a current speed of the objective vehicle and of starting coasting when the determined distance moved is larger than the interval measured in the preparing step; andan ending step of determining a distance moved by coasting during a second predetermined time from the current speed of the objective vehicle after coasting is started in the starting step, and of giving an instruction to end coasting when the determined distance moved is larger than the interval measured in the preparing step,wherein the first predetermined time is longer than the second predetermined time.2. The method of claim 1 , wherein the preparing step includes a measuring process of measuring a relative speed and an interval between the objective vehicle and the foregoing vehicle and a determination process of determining whether to perform the starting step based on data obtained in ...

Подробнее
Номер записи: 48
31-01-2019 дата публикации

SAILING STOP CONTROL METHOD AND CONTROL DEVICE FOR VEHICLE

Номер: US20190031171A1
Автор: Iwamoto Tadashi, Nakasaki Masayoshi, NISHIHIRO Yoshimasa, Ootsuka Yukifumi
Принадлежит:

A sailing stop control method for a vehicle including a transmission and a friction engaging element in series between an engine and drive wheels includes performing a sailing stop control to coast by shutting off power transmission by the friction engaging element, stopping the engine based on satisfaction of a sailing enter condition, restarting the engine upon satisfaction of a sailing exit condition during coasting by the sailing stop control, executing a shift control to set a target speed ratio of the transmission to a highest speed ratio smaller than a coasting speed ratio in normal time and satisfying engine exhaust performance after the restart of the engine if the sailing exit condition is a brake pedal depressing operation, and re-engaging the friction engaging element, if input and output revolution speeds of the friction engaging element are determined to be a synchronous revolution speed after end of the shift control. 1. A sailing stop control method for a vehicle including a transmission and a friction engaging element arranged in series between an engine and drive wheels , comprising:performing a sailing stop control to coast by shutting off power transmission by the friction engaging element;stopping the engine based on satisfaction of a sailing enter condition;restarting the engine upon satisfaction of a sailing exit condition during coasting by the sailing stop control;executing a shift control to set a target speed ratio of the transmission to a highest speed ratio smaller than a coasting speed ratio in normal time and satisfying engine exhaust performance after the restart of the engine if the sailing exit condition is a brake pedal depressing operation; andre-engaging the friction engaging element, if input and output revolution speeds of the friction engaging element are determined to be a synchronous revolution speed after end of the shift control of the transmission.2. (canceled)3. The sailing stop control method for the vehicle according ...

Подробнее
Номер записи: 49
31-01-2019 дата публикации

APPARATUS AND METHOD FOR CONTROLLING TRANSMISSION OF VEHICLE

Номер: US20190031196A1
Автор: Kim Sang Joon
Принадлежит:

An apparatus for controlling a transmission of a vehicle includes a controller which is configured to: set a target vehicle speed of an own vehicle; determine whether to permit a kick down of the transmission of the own vehicle based on the target vehicle speed and a current vehicle speed; determine a target shift stage of the transmission of the own vehicle according to a predetermined transmission pattern based on the current vehicle speed and an open value of an accelerator pedal of the own vehicle; and control the transmission to maintain a current shift stage or to kick down the current shift stage to the target shift stage according to whether to permit the kick down determined by the kick down determination controller when the target shift stage is lower than the current shift stage of the own vehicle. 1. An apparatus for controlling a transmission of a vehicle , the apparatus comprising a controller which is configured to:set a target vehicle speed of an own vehicle;determine whether to permit a kick down of a transmission of the own vehicle based on the target vehicle speed and a current vehicle speed;determine a target shift stage of the transmission of the own vehicle according to a predetermined transmission pattern based on the current vehicle speed and a throttle position value of an accelerator pedal of the own vehicle; andcontrol the transmission to maintain a current shift stage or to kick down the current shift stage to the target shift stage according to whether to permit the kick down determined by the controller when the target shift stage is lower than the current shift stage of the own vehicle.2. The apparatus of claim 1 , wherein the controller receives a set point in front of a traveling direction of the own vehicle and a set speed at the set point claim 1 , and sets a current speed at which the own vehicle is traveled at the set speed when the own vehicle reaches the set point in coasting of the own vehicle to be the target vehicle speed.3. ...

Подробнее
Номер записи: 50
30-01-2020 дата публикации

Start-Stop Device for Bringing About an Automatic Switch-Off And/Or Switch-On Operation of an Internal Combustion Engine of a Motor Vehicle

Номер: US20200031355A1
Автор: MUELLER Steffen
Принадлежит:

A start-stop device and a corresponding method brings about an automatic switch-off and/or switch-on operation of an automatically switched-off drive machine of a motor vehicle, in particular of a motor vehicle having an automatic transmission. The start-stop device has a switch-off logic, by way of which an automatic switch-off of the drive machine can be brought about in the case of a moving vehicle in accordance with a predefined switch-off operating strategy, and a switch-on logic, by way of which an automatic switch-on of the automatically switched-off drive machine can be brought about in accordance with a predefined switch-on operating strategy. The switch-off operating strategy and/or the switch-on operating strategy are/is configured in a manner which is based on wheel torque. 1. A start-stop device for bringing about an automatic switch-off and/or switch-on operation of an automatically switched-off drive machine of a motor vehicle , comprising:switch-off logic, by way of which an automatic switch-off of the drive machine is carried out in a case of a moving vehicle in accordance with a predefined switch-off operating strategy; andswitch-on logic, by way of which an automatic switch-on of the automatically switched-off drive machine is carried out in accordance with a predefined switch-on operating strategy, whereinat least one of the switch-off operating strategy and the switch-on operating strategy is configured in a manner which is based on wheel torque.2. The start-stop device according to claim 1 , whereinthe switch-off operating strategy takes into account present or determinable information relating to:a current or predicted vehicle tractive torque,a current or predicted crawl torque,a current and/or predicted downhill torque,a predicted wheel torque when the drive machine is switched off, and/ora current and/or predicted braking torque, when the decision is made to bring about an automatic switch-off process.3. The start-stop device according to ...

Подробнее
Номер записи: 51
17-02-2022 дата публикации

VEHICLE CONTROL SYSTEM

Номер: US20220050456A1
Автор: Endo Takahito, HATA Kensei, IWAZAKI Katsuya, KATO Yasuyuki, Komada Hideaki, OSHIUMI Yasuhiro, SEKI Yushi
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

A vehicle control system is provided to maintain an SOC level of the battery during autonomous operation of the vehicle. The control system is applied to a vehicle that can be operated autonomously by controlling an engine, a motor, a steering system, a brake system etc. autonomously by a controller, and the vehicle is allowed to coast by manipulating a clutch. During autonomous operation of the vehicle, a first coasting mode in which the engine is stopped and the clutch is disengaged is selected if the SOC level is higher than a threshold level, and a second coasting mode in which the engine is activated and the clutch is disengaged is selected if the SOC level is lower than the threshold level. 1. A control system for a vehicle , comprising:an engine;a generator that is driven by a rotation of the engine to generate electricity;a battery that is charged by the electricity generated by the generator;a plurality of actuators including at least any one of a brake actuator and a steering actuator actuated by the electricity supplied from the battery; anda pair of drive wheels that is rotated by a drive force delivered from the engine to propel the vehicle,wherein the vehicle is allowed to coast without delivering the drive force to propel the vehicle from the engine to the drive wheels,the control system comprises a controller that is configured to execute a coasting control of the vehicle,the controller comprising:a coasting condition determiner that determines a satisfaction of a condition to execute the coasting control upon satisfaction of at least one of the following conditions that a speed of vehicle is higher than a predetermined value, that the brake actuator is inactive, that the drive force is not required, that a distance from a car running ahead is greater than a predetermined value, and that a steering angle of the steering actuator is smaller than a predetermined value;a running condition determiner that determines a condition of the vehicle when the ...

Подробнее
Номер записи: 52
05-02-2015 дата публикации

Deceleration control system for a vehicle

Номер: US20150039191A1
Автор: Craig A. Cauthen
Принадлежит: Toyota Motor Engineering and Manufacturing North America Inc

A system for decelerating a hybrid vehicle, the system includes a continuously variable transmission (CVT), a brake pedal, an accelerator pedal, a sensor for detecting a vehicle deceleration, a memory for storing a target deceleration corresponding to a coasting deceleration of the vehicle, and a processor. When the brake pedal and the accelerator pedal are released, the vehicle coasts. If the vehicle deceleration does not match the target deceleration, the processor adjusts the torque output by the CVT so that the vehicle deceleration substantially matches the target deceleration.

Подробнее
Номер записи: 53
08-02-2018 дата публикации

VEHICLE CONTROL DEVICE AND CONTROL METHOD THEREFOR

Номер: US20180037229A1
Автор: KAWASUMI Takuro, NAKANO Yusuke, Nakasaki Masayoshi, NISHIHIRO Yoshimasa, Ootsuka Yukifumi, OSHIO Shintaro, Ota Yusuke
Принадлежит: JATCO LTD.

A vehicle control device includes control means for executing coasting control to disengage a friction engaging element and set a rotation speed of a rotary shaft of a drive source at zero when a predetermined condition is established, the predetermined condition including at least a condition according to which an accelerator pedal is not depressed. The control means starts the coasting control after predicting that an actual speed ratio of a continuously variable transmission will be modifiable to a target speed ratio of the coasting control during the coasting control, even in a case where the accelerator pedal is not depressed but the actual speed ratio has not yet reached the target speed ratio. 1. A vehicle control device for controlling a vehicle , the vehicle comprising:an oil pump driven by a drive source;a continuously variable transmission disposed between the drive source and a drive wheel such that oil discharged from the oil pump is supplied thereto; anda friction engaging element disposed in series with the continuously variable transmission between the drive source and the drive wheel,the vehicle control device comprising a controller configured to execute coasting control to disengage the friction engaging element and set a rotation speed of a rotary shaft of the drive source at zero when a predetermined condition, which includes at least a condition according to which an accelerator pedal is not depressed, is established,wherein the controller is configured to start the coasting control after predicting that an actual speed ratio of the continuously variable transmission will be modifiable to a target speed ratio of the coasting control during the coasting control, even in a case where the accelerator pedal is not depressed but the actual speed ratio has not yet reached the target speed ratio.2. The vehicle control device according to claim 1 , wherein the controller claim 1 , after predicting that the actual speed ratio will be modifiable to the ...

Подробнее
Номер записи: 54
08-02-2018 дата публикации

VEHICLE CONTROL DEVICE AND VEHICLE CONTROL METHOD

Номер: US20180037231A1
Автор: KAWASUMI Takuro, NAKANO Yusuke, Nakasaki Masayoshi, NISHIHIRO Yoshimasa, Ootsuka Yukifumi, OSHIO Shintaro, Ota Yusuke
Принадлежит: JATCO LTD.

A vehicle control device includes control means for executing coasting control, in which a friction engaging element is disengaged and a rotation speed of a rotary shaft of a drive source is set at zero, when a shift range corresponds to a travel range and a coasting condition is established, and the control means executes the coasting control when the shift range is modified to a neutral range. 1. A vehicle control device for controlling a vehicle in which a friction engaging element is provided between a drive source and a drive wheel , comprising:a controller configured to execute coasting control to disengage the friction engaging element and set a rotation speed of a rotary shaft of the drive source at zero when a shift range corresponds to a travel range and a coasting condition is established,wherein the controller is configured to execute the coasting control when the shift range is modified to a neutral range.2. The vehicle control device according to claim 1 , wherein the drive source is an engine claim 1 ,the vehicle comprises a brake device configured to generate braking force using negative pressure of the engine when a brake pedal is depressed, andthe controller is configured to halt the coasting control when the shift range corresponds to the neutral range and the brake pedal is depressed.3. The vehicle control device according to claim 2 , wherein the controller claim 2 , is configured to disengage the friction engaging element during gentle deceleration claim 2 , in which an operation amount of the brake pedal is smaller than a predetermined amount claim 2 , and engage the friction engaging element during rapid deceleration claim 2 , in which the operation amount of the brake pedal equals or exceeds the predetermined amount.4. The vehicle control device according to claim 1 , wherein the controller control is configured to execute the coasting control when the shift range corresponds to the neutral range and an accelerator pedal is depressed.5. The ...

Подробнее
Номер записи: 55
07-02-2019 дата публикации

Hybrid Car in P0- or Pl-Configuration

Номер: US20190039448A1
Автор: Kahnt Sebastian, Körner André, Nalbach Marc
Принадлежит:

A method for controlling a car with a parallel hybrid system comprising at least a combustion engine and an electrical machine in P- or P-configuration, with a clutch for connecting the combustion engine's output shaft with at least one drive shaft. Steps include determining a power demand P, and decoupling the combustion engine from the drive shaft if the power demand Pis below a first threshold P. Coupling the combustion engine with the drive shaft when the power demand Pis above the first threshold P provides additional fuel savings when the method further comprises shutting off the combustion engine and providing power to the drive shaft by providing electrical power to the electrical machine to drive the car, when the power demand Pis between the first threshold P and a second threshold P. The second threshold P is greater than the first threshold P, i.e. if P Подробнее

Номер записи: 56
07-02-2019 дата публикации

Expanding electric vehicle mode during downhill grade conditions

Номер: US20190039600A1
Автор: Shingo Eto, Thomas S. Hawley
Принадлежит: Toyota Motor Engineering and Manufacturing North America Inc

System and methods are provided for improving fuel economy of a hybrid vehicle. A hybrid vehicle may include an EV driving mode, where the motor alone powers the hybrid vehicle. However, use of such a driving mode may be limited to conditions involving low drive force and power requests due to motor and battery power specifications. In some circumstances, the conditions during which the motor can be used to power the hybrid vehicle can be expanded. Such conditions may include instances where the driver only seeks light accelerations for a short period of time. Such an expanded EV mode may be triggered when the hybrid vehicle is travelling a downhill grade.

Подробнее
Номер записи: 57
07-02-2019 дата публикации

DECELERATION CONTROL WITH ELECTRIC MOTOR AND MULTISPEED AUTOMATIC TRANSMISSION

Номер: US20190039601A1
Автор: Hawley Thomas S.
Принадлежит:

Systems and methods negate the effects of increased motor speed by a hybrid electric vehicle during an engine-off, coasting condition. Upon determining that the hybrid electric vehicle is traveling at a relatively high speed, and is experiencing an engine-on, coasting condition, the hybrid electric vehicle is transitioned to an electric motor-only mode of operation. Negative motor torque is generated to decelerate the hybrid electric vehicle while it is coasting. To optimize conditions for regenerative braking, the hybrid electric vehicle may downshift to a lower gear, increasing electric motor speed. However, the amount of negative motor power that is generated by the downshift can result in an undesirable deceleration experience. This negative motor torque can be reduced based upon the torque multiplication factor at the lower gear to mimic negative torque at the wheels had the hybrid electric vehicle not downshifted to the lower gear. 1. A method comprising:determining a vehicle is experiencing an engine-on, coast condition;transitioning to a motor-only mode in which negative motor torque is generated, and determining a rate of deceleration in a current gear;downshifting from the current gear to a lower gear; anddecreasing the negative motor torque to a torque level resulting in a rate of deceleration matching the determined rate of deceleration at the previously current gear.2. The method of claim 1 , wherein the vehicle comprises a parallel hybrid electric vehicle comprising at least one electric motor operatively connected in parallel with an internal combustion engine in a power transmission path of the parallel hybrid electric vehicle.3. The method of claim 2 , further comprising disconnecting the internal combustion engine from the power transmission path just prior to or upon the transition to the motor-only mode.4. The method of claim 2 , wherein the engine-on mode comprises a hybrid electric vehicle mode in which the electric motor and the engine operate ...

Подробнее
Номер записи: 58
07-02-2019 дата публикации

TRAVELING CONTROL DEVICE, VEHICLE, AND TRAVELING CONTROL METHOD

Номер: US20190039619A1
Автор: Hayashi Satoshi, NATSUMI Kouki, TAKAHASHI Naoki
Принадлежит:

Provided are a traveling control device, vehicle, and traveling control method making it possible to reduce wasteful energy consumption. The traveling control device includes: a traveling-condition determining section configured to determine whether or not necessity of decelerating a vehicle is high, based on a traveling condition; and a traveling control section configured to switch traveling of the vehicle from driven traveling to inertia traveling, when the traveling of the vehicle is the driven traveling and when the traveling-condition determining section determines that the necessity of stopping the vehicle is high. For example, the traveling condition includes information indicating the behavior of the preceding vehicle and traffic-light information on a traffic light in the traveling direction of the vehicle. 1. A traveling control device , comprising:a traveling-condition determining section configured to determine whether or not necessity of decelerating a vehicle is high, based on a traveling condition; anda traveling control section configured to switch traveling of the vehicle from driven traveling to inertia traveling, when the traveling of the vehicle is the driven traveling and when the traveling-condition determining section determines that the necessity of stopping the vehicle is high.2. The traveling control device according to claim 1 , whereinthe traveling condition includes information indicating a behavior of a preceding vehicle and traffic-light information on a traffic light in a traveling direction of the vehicle.3. The traveling control device according to claim 1 , wherein claim 1 ,after the traveling of the vehicle has been switched from the driven traveling to the inertia traveling and when the vehicle in inertia traveling is to be stopped, the traveling control section ends the inertia traveling, and decelerates the vehicle to stop the vehicle.4. The traveling control device according to claim 1 , wherein claim 1 ,after the traveling ...

Подробнее
Номер записи: 59
18-02-2016 дата публикации

SYSTEM AND METHOD FOR CONTROLLING A FREE-WHEELING MOTOR VEHICLE

Номер: US20160046291A1
Автор: GOURARA Amine, ROUDEAU Frederic
Принадлежит: RENAULT S.A.S.

A system and method for controlling a free-wheeling motor vehicle including at least one internal combustion engine connected to drive wheels by a transmission. The method includes: determining engine torque at wheels; determining longitudinal acceleration of the vehicle when a free-wheeling driving mode is activated, on the basis of resisting torques on the wheels; determining longitudinal acceleration of the vehicle when the free-wheeling driving mode is deactivated on the basis of the engine torque and the resisting torques on the wheels; determining the difference in longitudinal acceleration between when the free-wheeling driving mode is activated and the free-wheeling driving mode is deactivated; and opening the transmission chain when the longitudinal acceleration difference leans substantially toward a value of zero. 17-. (canceled)8. A method for controlling a motor vehicle including at least an internal combustion engine connected to driving wheels by a transmission , the method comprising:determining engine torque at the wheels;determining longitudinal acceleration of the vehicle when a free-wheeling driving mode is engaged, on the basis of the engine torque and resisting torques at the wheels;determining longitudinal acceleration of the vehicle when the free-wheeling driving mode is disengaged, on the basis of the resisting torques at the wheels;determining the difference in longitudinal acceleration between an engaged free-wheeling driving mode and a disengaged free-wheeling driving mode;opening a transmission chain when the longitudinal acceleration difference leans substantially toward a value of zero.9. The control method as claimed in claim 8 , wherein the transmission chain is opened when all the following conditions are met:a brake pedal is released, andthe longitudinal acceleration difference when switching from a disengaged free-wheeling driving mode into an engaged free-wheeling driving mode is less than a first positive threshold and greater ...

Подробнее
Номер записи: 60
01-05-2014 дата публикации

Event-Based Retarding in a Machine with a Continuously Variable Transmission

Номер: US20140121058A1
Автор: Adam Nackers, Kevin Davis
Принадлежит: Caterpillar Inc

A method controls the power-transmission in a machine having a continuously variable transmission (CVT) and a power source operatively coupled together in a powertrain. The method regulates operation of the CVT with a retarding power limit in order to limit the amount of retarding power transferable from the powertrain to the power source. The retarding power may be utilized to decelerate or decrease the speed of the machine. The method may register an operator input signal indicative of a deceleration event from a plurality of possible deceleration events. The deceleration event is compared to a lookup table to determine if the retarding power limit should be adjusted. The method may adjust the retarding power limit in accordance with the comparison.

Подробнее
Номер записи: 61
15-02-2018 дата публикации

Vehicle control device for controlling inertia operation of vehicle

Номер: US20180043892A1
Автор: Akira Kato, Shigeru Maeda
Принадлежит: Denso Corp

A vehicle control device turns off a clutch to put a vehicle into an inertia operation state in response to a predetermined executing condition being met, and turns on the clutch to terminate the inertia operation state in response to a predetermined terminating condition being met during the inertia operation. The vehicle control device includes a deceleration degree calculating device, a determination device, and an operation control device. The deceleration degree calculating device calculates an actual deceleration degree. The determination device determines whether the actual deceleration degree is greater than a threshold value defined on the basis of a deceleration degree of the vehicle in an accelerator-off and clutch-on state. The operation control device terminates or maintains the inertia operation depending on a condition of the actual deceleration degree.

Подробнее
Номер записи: 62
03-03-2022 дата публикации

VEHICLE INCLUDING ELECTRIC MOTOR AND METHOD OF CONTROLLING THE SAME

Номер: US20220063589A1
Автор: Jo Kyu Hwan, Kim Joo Young, Kim Sang Joon, LEE Jea Mun, PARK Joon Young, SON Hui Un, YU Sung Hoon
Принадлежит:

Disclosed are a vehicle including an electric motor and a method of controlling the same for providing a notification function to an occupant of the vehicle by controlling a pitching motion of a vehicle body. The method includes calculating a first torque value for providing the pitching motion based on driving state information including a vehicle speed, a driving mode, and an environment of a driving road; calculating a second torque value based on a request of a driver; and calculating a final torque value for controlling the electric motor based on the first torque value and the second torque value. 1. A method of controlling a vehicle comprising an electric motor , the method comprising:calculating, by a controller, a first torque value for providing a pitching motion based on driving state information including a vehicle speed of the vehicle, a driving mode of the vehicle, and an environment of a driving road on which the vehicle travels;calculating, by the controller, a second torque value based on a request of a driver of the vehicle; andcalculating, by the controller, a final torque value for controlling the electric motor based on the first torque value and the second torque value.2. The method of claim 1 , further comprising:determining, by the controller, a pitching motion mode based on the driving state information,wherein calculating the first torque value includes calculating the first torque value to provide the pitching motion corresponding to the determined pitching motion mode.3. The method of claim 2 , wherein determining the pitching motion mode includes determining the pitching motion mode based on at least one of urgency claim 2 , importance claim 2 , a degree by which correction is needed claim 2 , settings of the driver claim 2 , a state of charge (SOC) of a battery claim 2 , a current vehicle speed claim 2 , or a slope.4. The method of claim 2 , wherein the pitching motion mode includes at least one of an acceleration guidance mode claim 2 ...

Подробнее
Номер записи: 63
14-02-2019 дата публикации

VEHICLE CONTROL APPARATUS

Номер: US20190047565A1
Автор: ISHIHARA Hisashi, KAYUKAWA Atsushi, KIMURA Takahiro, Kobayashi Nobufusa, Kumazaki Kenta, Maeda Mitsuru, OKASAKA Kazuomi, SUYAMA Daisuke, Yoshikawa Masato
Принадлежит:

A control apparatus for a vehicle includes a vehicle driving control portion configured to permit reverse driving of the vehicle in a reverse direction while the automatic transmission is placed in a forward-drive low-speed gear position, with the motor/generator being operated in a negative direction to generate a negative torque, and a transmission shifting control portion configured to implement a control for promotion to establish the forward-drive low-speed gear position, when switching from forward driving of the vehicle to its reverse driving of the vehicle is required in the process of a shifting action of the automatic transmission to the forward-drive low-speed gear position. The transmission shifting control portion implements the control for promotion to establish the forward-drive low-speed gear position, according to a state of control of the engaging-side coupling device to be brought into its engaged state for establishing the forward-drive low-speed gear position. 1. A control apparatus for a vehicle provided with a motor/generator functioning as a drive power source , and an automatic transmission which constitutes a part of a power transmitting path between the motor/generator and drive wheels and which is shifted to a selected one of a plurality of gear positions with an engaging action of one of a plurality of coupling devices , the control apparatus comprising:a vehicle driving control portion configured to permit reverse driving of the vehicle in a reverse direction while the automatic transmission is placed in a forward-drive low-speed gear position of the plurality of gear positions, with the motor/generator being operated in a negative direction opposite to a positive direction for forward driving of the vehicle, to generate a negative reverse driving torque opposite to a positive forward driving torque for the forward driving; anda transmission shifting control portion configured to implement a control for promotion to establish the ...

Подробнее
Номер записи: 64
25-02-2016 дата публикации

TRAVEL CONTROL DEVICE

Номер: US20160052504A1
Автор: HAREYAMA Youhei, KONDO Masami, Yokokawa Takahiro
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

A travel control device includes: an engine; an automatic transmission including a plurality of engagement elements and a rotary element, the automatic transmission being configured to block power transmission between the engine and a drive wheel of a vehicle and set a transmission gear ratio in accordance with an engagement element to be engaged out of the plurality of engagement elements; and a controller configured to perform free-running by blocking power transmission between the engine and the drive wheel while traveling at a predetermined transmission gear ratio and stopping the engine. The controller is configured to increase speed of a rotary element inside the automatic transmission during the free-running, and start the engine at a time speed of the engine becomes higher than a predetermined speed at a time of returning from the free-running. 1. A travel control device , comprising:an engine;an automatic transmission including a plurality of engagement elements and a rotary element, the automatic transmission being configured to block power transmission between the engine and a drive wheel of a vehicle and set a transmission gear ratio in accordance with an engagement element to be engaged out of the plurality of engagement elements; and perform free-running by blocking power transmission between the engine and the drive wheel while traveling at a predetermined transmission gear ratio and stopping the engine;', 'increase speed of a rotary element inside the automatic transmission, during the free-running, by engaging at least one of engagement elements excluding an engagement element to be engaged at the predetermined transmission gear ratio in a state that all of the engagement elements to be engaged at the predetermined transmission gear ratio are disengaged; and', 'disengage, at a time of returning from the free-running, the engaged engagement element, engage an engagement element to transmit, to the engine, at least rotational energy of the rotary ...

Подробнее
Номер записи: 65
25-02-2016 дата публикации

COAST SWITCH FOR AN ELECTRIFIED VEHICLE

Номер: US20160052519A1
Автор: Hartl Derek, Martin Douglas Raymond, Miller Kenneth James, PERKINS William
Принадлежит:

An example method of controlling an electrified vehicle includes activating a coast switch to a place an electrified vehicle in a coast mode. 1. A method of controlling an electrified vehicle , comprising:activating a coast switch to a place an electrified vehicle in a coast mode.2. The method of claim 1 , maintaining a gear selector in a drive mode during the activating.3. The method of claim 2 , wherein the gear selector can be actuated between at least a drive mode claim 2 , a neutral mode claim 2 , and a reverse mode.4. The method of claim 1 , wherein the coast switch is separate from a gear selector of the electrified vehicle.5. The method of claim 1 , wherein the activating the coast switch comprises moving the coast switch from a first position to a second position.6. The method of claim 5 , wherein the second position is a depressed position and the first position is a released position.7. The method of claim 5 , wherein the coast switch is biased to the first position claim 5 , and a user holds the coast switch in the second position to overcome the bias and maintain the electrified vehicle in the coast mode.8. The method of claim 5 , wherein deactivating the coast switch comprises moving the coast switch from the second position to the first position.9. The method of claim 1 , including activating the coast switch separately from a gear selector of the electrified vehicle without applying a brake.10. The method of claim 1 , disengaging gears of a powersplit powertrain in response to activating the coast mode.11. An electrified vehicle claim 1 , comprising:a gear selector; anda coast switch separate from the gear selector, the coast switch activated to selectively place an electrified vehicle in a coast mode.12. The electrified vehicle of claim 11 , wherein the gear selector is can be actuated between at least a drive mode claim 11 , a neutral mode claim 11 , and a reverse mode.13. The electrified vehicle of claim 12 , the coast switch is activated to ...

Подробнее
Номер записи: 66
25-02-2016 дата публикации

VEHICLE CONTROL DEVICE AND VEHICLE CONTROL METHOD

Номер: US20160052520A1
Автор: HAREYAMA Youhei, KONDOU Masami, Yokokawa Takahiro
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

A vehicle control device includes a controller configured to allow cranking of an engine by increasing clutch torque at a time a deceleration request is detected during free running in which a vehicle is allowed to run in a state in which a clutch is disengaged and the engine is stopped, and make an increasing rate of the clutch torque larger at a time a negative pressure of a brake booster is small than at a time the negative pressure of the brake booster is large. 1. A vehicle control device comprising allow cranking of an engine by increasing clutch torque at a time a deceleration request is detected during free running in which a vehicle is allowed to run in a state in which a clutch is disengaged and the engine is stopped, and', 'make an increasing rate of the clutch torque larger at a time a negative pressure of a brake booster is small than at a time the negative pressure of the brake booster is large., 'a controller configured to'}2. The vehicle control device according to claim 1 , wherein the controller is configured to make the increasing rate of the clutch torque larger by making an increasing rate of a target turbine rotational speed larger at the time the negative pressure of the brake booster is small than at the time the negative pressure of the brake booster is large.3. The vehicle control device according to claim 1 , wherein the controller is configured to shift down a continuously variable transmission at a time a braking force is insufficient relative to a target value.4. The vehicle control device according to claim 2 , wherein the controller is configured to shift down a continuously variable transmission at a time a braking force is insufficient relative to a target value.5. A vehicle control method comprising:allowing cranking of an engine by increasing clutch torque at a time a deceleration request is detected during free running in which a vehicle is allowed to run in a state in which a clutch is disengaged and the engine is stopped; ...

Подробнее
Номер записи: 67
22-02-2018 дата публикации

METHOD OF CONTROLLING A VEHICLE

Номер: US20180050590A1
Автор: JAKOBSSON Samuel, KARPENMAN Fredrik
Принадлежит: VOLVO TRUCK CORPORATION

A method of controlling a vehicle presenting a plurality of wheels, an engine and a clutch for selectively connecting the engine to a number of the wheels includes 1. A method of controlling a vehicle presenting a plurality of wheels , an engine and a clutch for selectively connecting the engine to a number of the wheels , the method comprisingreceiving a torque control signal indicative of a demanded output torque of the engine, andobserving a value of a first vehicle operation parameter being the vehicle speed or a parameter which is indicative of the vehicle speed,{'b': '4', 'controlling the clutch so as to be engaged if the received torque control signal indicates that the demanded engine torque is minimal or below a first threshold value and the observed first vehicle operation parameter value is above a second threshold value (S),'}{'b': '7', 'subsequently to the step of controlling the clutch so as to be engaged, performing (S) a test disengagement of the clutch, comprising at least partly disengaging the clutch, observing a behaviour, in response to the test disengagement, of a second vehicle operation parameter, and'}based at least partly on the observation of the behaviour of the second vehicle operation parameter, determining whether to control the clutch so as to be re-engaged or disengaged.2. A method according to claim 1 , wherein the second vehicle operation parameter is the vehicle speed claim 1 , a parameter which is indicative of the vehicle speed claim 1 , the engine speed claim 1 , or a parameter which is indicative of the engine speed.3. A method according to claim 1 , wherein observing the behaviour of the second vehicle operation parameter comprises observing whether there is a change of the second vehicle operation parameter.4. A method according to claim 1 , wherein observing the behaviour of the second vehicle operation parameter comprises observing whether a change of the second vehicle operation parameter is positive or negative.5. A ...

Подробнее
Номер записи: 68
03-03-2016 дата публикации

Methods and system for improving hybrid driveline operation

Номер: US20160059840A1
Автор: Bernard D. Nefcy, Felix Nedorezov, Mark Steven Yamazaki, Matthew John Shelton, Todd MCCULLOUGH
Принадлежит: FORD GLOBAL TECHNOLOGIES LLC

Systems and methods for improving transmission gear shifting of a hybrid vehicle are presented. The systems and methods prepare the hybrid vehicle for conditions that may occur after a requested gear shift is performed. In one example, a motor speed that would occur after a downshift, if the downshift were allowed to occur, is determined and control actions may be taken in response to the predicted motor speed.

Подробнее
Номер записи: 69
01-03-2018 дата публикации

Vehicle Control Apparatus and Vehicle Control Method

Номер: US20180056987A1
Автор: Keisuke Suzuki, Masahiro Nakamizo, Satoshi Kaneko
Принадлежит: HITACHI AUTOMOTIVE SYSTEMS LTD

An object of the present invention is to provide a vehicle control apparatus and a vehicle control method capable of improving traceability when a speed reduction torque is applied. A vehicle control apparatus according to the present invention is configured to calculate the speed reduction torque to be generated on a vehicle based on an accelerator operation state and a front wheel slip angle. More specifically, when being brought into a turning state while a coasting torque is applied, the vehicle control apparatus makes a correction so as to reduce an absolute value of the coasting torque, thereby improving the traceability and the drivability.

Подробнее
Номер записи: 70
01-03-2018 дата публикации

Vehicle Propulsion Systems And Methods

Номер: US20180057001A1
Автор: Chen-Fang Chang, Dongxu Li, Jay H. Sim, Jun-Mo Kang, Junfeng Zhao, Steven E. Muldoon, Yiran Hu
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A vehicle engine system includes a combustion engine configured to provide a propulsion torque to satisfy a propulsion demand in response to a driver input. The engine system also includes a controller programmed to receive data indicative of at least one upcoming driving event, and issue a command to impart a predetermined velocity profile based on the upcoming driving event. The predetermined velocity profile is arranged to optimize a performance attribute of the combustion engine and preempt the driver input.

Подробнее
Номер записи: 71
04-03-2021 дата публикации

Free Space Mapping and Navigation

Номер: US20210061304A1
Автор: ARGAMAN Matan, Braunstein Daniel, Huberman David, Levi Ishay, Viente Kfir
Принадлежит: Mobileye Vision Technologies Ltd.

A system for mapping road segment free spaces for use in autonomous vehicle navigation. The system includes at least one processor programmed to: receive from a first vehicle one or more location identifiers associated with a lateral region of free space adjacent to a road segment; update an autonomous vehicle road navigation model for the road segment to include a mapped representation of the lateral region of free space based on the received one or more location identifiers; and distribute the updated autonomous vehicle road navigation model to a plurality of autonomous vehicles. 177.-. (canceled)78. A system for mapping road segment free spaces for use in autonomous vehicle navigation , the system comprising: receive from a first vehicle one or more location identifiers associated with a lateral region of free space adjacent to a road segment;', 'update an autonomous vehicle road navigation model for the road segment to include a mapped representation of the lateral region of free space based on the received one or more location identifiers; and', 'distribute the updated autonomous vehicle road navigation model to a plurality of autonomous vehicles., 'at least one processor programmed to79. The system of claim 78 , wherein the lateral region of free space includes one or more of a driveway intersecting the road segment claim 78 , a parking lot claim 78 , or a sidewalk.80. The system of claim 78 , wherein the lateral region of free space includes one or more of a driveway intersecting the road segment claim 78 , a parking lot claim 78 , or a sidewalk.81. The system of claim 78 , wherein the at least one processor is further programmed to receive an additional characteristic associated with the lateral free space adjacent to the road segment.82. The system of claim 81 , wherein the additional characteristic includes a free space type indicator.83. The system of claim 82 , wherein the free space type indicator includes at least one of a driveway claim 82 , a parking ...

Подробнее
Номер записи: 72
04-03-2021 дата публикации

NAVIGATION BASED ON TRAFFIC LIGHT CYCLE PREDICTION

Номер: US20210061305A1
Автор: Barzilay Ouriel, Huberman David
Принадлежит: Mobileye Vision Technologies Ltd.

A system for mapping traffic lights and associated traffic light cycle times for use in autonomous vehicle navigation. The system includes at least one processor programmed to: receive at least one location identifier associated with a traffic light detected along a road segment; receive at least one indicator of traffic light state timing associated with the detected traffic light; and update an autonomous vehicle road navigation model relative to the road segment. The update can be based on the at least one location identifier and based on the at least one indicator of traffic light state timing associated with the traffic light detected along the road segment. The processor may also include distribute the updated autonomous vehicle road navigation model to a plurality of autonomous vehicles. 1127.-. (canceled)128. A system for mapping traffic lights and associated traffic light cycle times for use in autonomous vehicle navigation , the system comprising at least one processor programmed to:receive, from a first vehicle, at least one location identifier associated with a traffic light detected along a road segment;receive, from the first vehicle, at least one indicator of traffic light state timing associated with the detected traffic light;update an autonomous vehicle road navigation model relative to the road segment, wherein the update is based on the at least one location identifier and based on the at least one indicator of traffic light state timing associated with the traffic light detected along the road segment; anddistribute the updated autonomous vehicle road navigation model to a plurality of autonomous vehicles.129. The system of claim 128 , wherein the autonomous vehicle road navigation model includes a mapped location of the detected traffic light claim 128 , and wherein the at least one location identifier received from the first vehicle is used to update the mapped location of the detected traffic light.130. The system of claim 129 , wherein the ...

Подробнее
Номер записи: 73
28-02-2019 дата публикации

Vehicle control apparatus

Номер: US20190061737A1
Автор: Jun Goto, Kazuyuki Shiiba, Kenta Kumazaki, Masato Yoshikawa, Takahiro Kimura, Tooru Matsubara
Принадлежит: Toyota Motor Corp

A control apparatus is provided for a vehicle that includes (i) an engine serving as a drive power source, (ii) a motor/generator serving as the drive power source and (iii) a mechanically-operated transmission mechanism that constitutes a part of a power transmitting path between the drive power source and drive wheels of the vehicle. The control apparatus includes a shift control portion is configured, when an input torque inputted to the mechanically-operated transmission mechanism is to be controlled in process of a coasting shift-down action executed in the mechanically-operated transmission mechanism, to determine an upper limit value of the input torque inputted to the mechanically-operated transmission mechanism in the process of the coasting shift-down action, such that the determined upper limit value is lower during operation of the engine than during stop of the engine.

Подробнее
Номер записи: 74
17-03-2022 дата публикации

CONTROL SYSTEM FOR HYBRID VEHICLE

Номер: US20220080948A1
Автор: Imamura Tatsuya, OKUWAKI Shigeru
Принадлежит:

A control system for a hybrid vehicle configured to accelerate the coasting hybrid vehicle sharply in response to a depression of an accelerator pedal. A controller is configured to: shift an operating mode from low mode to high mode at a higher speed in a case that the hybrid vehicle coasts without depressing an accelerator pedal, compared to a case that the hybrid vehicle is propelled by depressing the accelerator pedal; and delay a timing to shift the operating mode from the low mode to the high mode for a predetermined period of time when accelerating the coasting hybrid vehicle by depressing the accelerator pedal. 1. A control system for a hybrid vehicle , comprising:a prime mover including an engine and a motor;a first differential mechanism that performs a differential action among a first rotary element that is connected to the engine, a second rotary element that is connected to the motor, and a third rotary element;a second differential mechanism that performs a differential action among a fourth rotary element that is connected to a pair of drive wheels, a fifth rotary element that is connected to the third rotary element, and a sixth rotary element;a first engagement device that selectively connects the first rotary element to the sixth rotary element; anda second engagement device that selectively connects any two of the fourth rotary element, the fifth rotary element, and the sixth rotary element,wherein an operating mode is selected from a plurality of modes including a low mode established by engaging the first engagement device, and a high mode established by engaging the second engagement device in which a torque delivered to the drive wheels is smaller compared to the low mode, andthe control system comprises a controller that shifts the operating mode,the controller is configured toshift the operating mode from the low mode to the high mode at a higher speed in a case that the hybrid vehicle coasts without depressing an accelerator pedal, ...

Подробнее
Номер записи: 75
27-02-2020 дата публикации

TANDEM AXLE WITH DISCONNECT COAST

Номер: US20200062112A1
Автор: BRAMMER Andrew T., Davis Mark A., WILLFORD George A.
Принадлежит: Dana Heavy Vehicle Systems Group, LLC

Provided herein is a method of disconnecting and connecting elements of a tandem axle system () drivingly connected to an engine () and transmission () of a vehicle, the method including the steps of: providing a tandem axle system () having: an inter-axle differential and clutch assembly () in driving engagement with the engine, wherein the inter-axle differential and clutch assembly includes an inter-axle differential () and an inter-axle differential lock (); a forward axle assembly () including a differential assembly (), a disconnect assembly () and two axle half shafts (b); and a rear axle assembly () including a differential assembly (), a disconnect assembly () and two axle half shafts (); providing a control system () in communication with the inter-axle differential lock, the disconnect assemblies and the engine; detecting () a disconnect opportunity; commanding () the engine torque set to zero; disconnecting () the axle half shafts of the forward and rear axle assemblies; engaging () the inter-axle differential lock; and allowing () the engine to idle. 1. A method of disconnecting and connecting elements of a tandem axle system drivingly connected to an engine and transmission of a vehicle , the method comprising the steps of: an inter-axle differential and clutch assembly in driving engagement with the engine, wherein the inter-axle differential and clutch assembly comprises an inter-axle differential and an inter-axle differential lock;', 'a forward axle assembly comprising a differential assembly, a disconnect assembly and two axle half shafts, wherein the disconnect assembly selectively connects the axle half shafts to the differential assembly; and', 'a rear axle assembly comprising a differential assembly, a disconnect assembly and two axle half shafts, wherein the disconnect assembly selectively connects the axle half shafts to the differential assembly;, 'providing a tandem axle system comprisingproviding a control system in communication with the ...

Подробнее
Номер записи: 76
27-02-2020 дата публикации

METHOD FOR ADVANCED INERTIA DRIVE CONTROL OF VEHICLE

Номер: US20200062259A1
Автор: HUH Jee-Wook
Принадлежит:

A method for inertia drive control is provided. The method includes performing advanced inertia drive control by an inertia drive controller. The controller detects a speed reduction event during road driving of a vehicle, lane division together with road type division for a road, and performs inertia drive control guide and the inertia drive control based on drive conditions of lane change and lane maintenance. 1. A method for inertia drive control , comprising: detecting a speed reduction event during road driving of a vehicle, lane division together with road type division for a road; and', 'performing inertia drive control guide and the inertia drive control on drive conditions of lane change and lane maintenance., 'performing, by an inertia drive controller, advanced inertia drive control by2. The method according to claim 1 , wherein the lane change is applied to departure approach driving of an interchange (IC) or a junction (JC) claim 1 , and the lane maintenance is applied to speed camera or tollgate passing driving.3. The method according to claim 1 , wherein the speed reduction event is confirmed from navigation information or road information of a vehicle-to-vehicle (V2V) communication device.4. The method according to claim 1 , wherein the advanced inertia drive control includes:determining, by the inertia drive controller, a total number of lanes for the lane division by classifying an expressway or a highway in which the speed reduction event has occurred into the road type;determining, by the inertia drive controller, a driving lane among the total number of lanes;in case of a lane change speed reduction condition by the speed reduction event, switching, by the inertia drive controller, to a lane change inertial drive control mode in which departure determination, departure start point determination, lane change point determination, lane change alarm display, departure start point arrival, rear vehicle condition determination, departure start point ...

Подробнее
Номер записи: 77
15-03-2018 дата публикации

CRUISE CONTROL DEVICE AND CRUISE CONTROL METHOD

Номер: US20180072322A1
Автор: ISHIGURO Shinichi, SHIMODA Kazutaka, YAMAKADO Ryuu
Принадлежит:

This cruise control device enables more accurate prediction of running resistance and prevents worsening of fuel economy. In this device, a coasting prediction unit () of an automatic cruise control device (), which is for performing cruise control of the vehicle () on the basis of a resistance coefficient, predicts, on the basis of the resistance coefficient, the change in vehicle speed if the vehicle () were to coast; if the vehicle () does coast, a vehicle information acquisition unit () acquires information about the detected vehicle speed; and a running resistance updating unit () updates the value of the resistance coefficient on the basis of the information about the change in vehicle speed predicted by the coasting prediction unit () and information about the vehicle speed acquired by the vehicle information acquisition unit (). 1. A travel control device that controls travel of a vehicle based on a resistance coefficient , the travel control device comprising:a coasting estimation section that estimates based on the resistance coefficient a variation of a vehicle speed of a case where the vehicle performs coasting;a vehicle information acquiring section that acquires information about a vehicle speed detected in the case where the vehicle performs coasting; anda travel resistance updating section that updates a value of the resistance coefficient based on information about the variation of the vehicle speed estimated by the coasting estimation section, and the information about the vehicle speed acquired by the vehicle information acquiring section.2. The travel control device according to claim 1 , wherein the travel resistance updating section updates the value of the resistance coefficient for each coasting.3. The travel control device according to claim 1 , wherein the travel resistance updating section updates the value of the resistance coefficient when it is determined that the coasting is performed and that an accuracy of estimation of the vehicle ...

Подробнее
Номер записи: 78
16-03-2017 дата публикации

SYSTEM AND METHOD OF CONTROLLING VEHICLE DRIVING

Номер: US20170072961A1
Автор: YOON Young Min
Принадлежит:

A system and method of controlling vehicle driving is provided to mitigate a delay in vehicle acceleration when a sailing mode is released. The method includes when a sailing mode is operated, disengaged a clutch and adjusting an engine speed to correspond to a rotational speed of the clutch. Additionally, the clutch is engaged based on whether the sailing mode is released. 1. A method of controlling vehicle driving , comprising:performing, by a controller, a follow-up control in which, when a sailing mode is operated, a clutch is disengaged and an engine speed is adjusted to correspond to a rotational speed of the clutch; andperforming, by the controller, an engagement control in which whether the clutch is engaged is executed based on whether the sailing mode is released.2. The method according to claim 1 , wherein claim 1 , in the performing follow-up control claim 1 , a drive shaft clutch is disengaged claim 1 , and the engine speed is adjusted to correspond to a clutch rotational speed at a current target shift stage.3. The method according to claim 1 , wherein claim 1 , in the performing engagement control claim 1 , when the sailing mode is released claim 1 , the clutch is operated to be engaged while slipping.4. The method according to claim 1 , wherein claim 1 , in the performing engagement control claim 1 , when the sailing mode is maintained claim 1 , the engine speed is adjusted to correspond to a clutch rotational speed at a current target shift stage while the clutch is maintained in a released state.5. The method according to claim 1 , further comprising:receiving, by the controller, an operational signal of an accelerator pedal;determining, by the controller, whether the sailing mode is operated or released; andengaging or disengaging, by the controller, the clutch using clutch actuators.6. A system of controlling vehicle driving claim 1 , comprising:a memory configured to store program instructions; and disengage a clutch when a sailing mode is ...

Подробнее
Номер записи: 79
15-03-2018 дата публикации

AUTOMATIC TRANSMISSION CONTROL DEVICE AND CONTROL METHOD

Номер: US20180073632A1
Автор: Endo Yasuhiro, HONMA Tomoaki, KAMIYA Kohei, SUZUKI Akito
Принадлежит:

A control device for an automatic transmission includes: a first engagement control section configured to bring the lockup clutch to a full engagement state after a rotation of the internal combustion engine is increased in a slip engagement state while a torque transmission capacity of the lockup clutch is increased, and a second engagement control section configured to add a predetermined capacity to the increased torque transmission capacity when the torque judging section judges an increase of the output torque of the internal combustion engine in a state where a sensed rotation speed difference in the slip engagement state of the engagement state of the first engagement control is increased to be equal to or greater than a first predetermined value, and then decreased to be equal to or smaller than a second predetermined value smaller than the first predetermined value. 1. A control device for an automatic transmission including a transmission mechanism , and a torque converter which is disposed between an internal combustion engine that is a driving source of a vehicle , and the transmission mechanism , and which includes a lockup clutch , the control device comprising:a control section configured to control the automatic transmission in accordance with a traveling state of the vehicle;a rotation sensing section configured to sense a rotation speed difference between input and output elements of the lockup clutch; anda torque sensing section configured to sense an output torque of the internal combustion engine; a first engagement control section configured to perform a first engagement control to bring the lockup clutch to a full engagement state after a rotation of the internal combustion engine is increased in a slip engagement state while a torque transmission capacity of the lockup clutch is increased when the lockup clutch is returned to the full engagement state after the full engagement state of the lockup clutch is temporarily released by an ON ...

Подробнее
Номер записи: 80
18-03-2021 дата публикации

SYSTEMS AND METHODS FOR MAINTAINING VEHICLE SPEED DURING ROAD GRADE CHANGES

Номер: US20210078584A1
Автор: Janampally Sandeep Kumar Reddy, KIMURA Motonori, Sanchez Alejandro M.
Принадлежит:

A system for dynamically maintaining a vehicle speed during a change in road grade comprises a first sensor configured to detect a depression amount of an accelerator pedal and a second sensor configured to monitor the vehicle speed. The system further comprises a vehicle speed control module configured to: receive an indication that the accelerator pedal is depressed; receive an indication of the vehicle speed; determine that the pedal has been depressed within a threshold amount for a threshold time period; determine that the vehicle speed has been maintained within a threshold for the threshold time period; determine whether the change in the road grade is less than a threshold grade; and, based on a determination that the change in the road grade is less than the threshold, automatically adjust a load on a power source of the vehicle to maintain the vehicle speed during the change in road grade. 1. A system for dynamically maintaining a vehicle speed during a change in road grade , the system comprising:a first sensor configured to detect an amount of depression of an accelerator pedal of a vehicle;a second sensor configured to monitor the vehicle speed; and receive, by the first sensor, an indication that the accelerator pedal is depressed;', 'receive, by the second sensor, an indication of the vehicle speed;', 'determine that the accelerator pedal has been depressed within a threshold depression amount for a threshold time period;', 'determine that the vehicle speed has been maintained within a threshold speed for the threshold time period;', 'determine whether the change in the road grade is less than a threshold grade; and', 'based on a determination that the change in the road grade is less than the threshold grade, automatically adjust a load on a power source of the vehicle to maintain the vehicle speed during the change in the road grade., 'a vehicle speed control module configured to2. The system of claim 1 , wherein the vehicle speed control module is ...

Подробнее
Номер записи: 81
22-03-2018 дата публикации

RESTART CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE

Номер: US20180080425A1
Автор: ASADA Tadatoshi, Maeda Shigeru, OSE Tomohisa, SENDA Takashi
Принадлежит: Denso Corporation

A restart control device is applied to a vehicle which is provided with an internal combustion engine, an electric motor, a driving wheel, and a clutch. The restart control device has a restart-condition determining portion which determines whether a restart condition for restarting the internal combustion engine is established while the vehicle is coasting; a push-start portion which starts the internal combustion engine by a push-start; a start-up portion which starts the internal combustion engine by use of an electric motor; and a doubly start-up portion which tries to start the internal combustion engine by one of the push-start portion and the start-up portion when the restart-condition determining portion determines that the restart condition is established. The doubly start-up portion tries to start the internal combustion engine by another one of the push-up portion and the start-up portion when the internal combustion engine has not been started. 1. A restart control device applied to a vehicle which is provided with an internal combustion engine , an electric motor which is connected to an output shaft of the internal combustion engine so that a torque is applied to the output shaft to increase a rotation speed of the internal combustion engine , a driving wheel , and a clutch device which is engaged or disengaged to permit or prohibit a power transmission between the output shaft of the internal combustion engine and the driving wheel , and a vehicle speed detecting portion which detects a vehicle speed , the restart control device comprising:a performing-condition determining portion which determines whether a performing condition is established for the vehicle to perform a coasting;a coasting portion which terminates a fuel supply to the internal combustion engine and disengages the clutch device to perform a coasting of the vehicle when the performing-condition determining portion determines that the performing condition is established;a restart- ...

Подробнее
Номер записи: 82
23-03-2017 дата публикации

METHOD FOR CONTROLLING THE SHUTDOWN OF A HEAT ENGINE

Номер: US20170080944A1
Автор: NODIN Bertrand, PETILLON Yohann
Принадлежит: RENAULT S.A.S.

A method for controlling a vehicle power train that includes a heat engine connected to the transmission of the vehicle by a clutch controlled between an open position and a closed position of the transmission by a computer of the transmission exchanging information with a computer of the heat engine. The method includes sending, in order to shut down the engine before the clutch is opened when the vehicle is in motion, the kinematic chain being closed and the injection interrupted, a message from the computer of the transmission to the computer of the engine at a first moment in time so as to synchronize an opening of the clutch and the closure of an air flap of the engine at a second moment in time subsequent to the first moment. 14-. (canceled)5. A method for controlling a vehicle power train comprising a heat engine connected to the transmission of the vehicle by a clutch controlled between an open position and a closed position of the transmission by a computer of the transmission exchanging information with a computer of the heat engine , the method comprising:sending, in order to shut down the engine before the clutch is opened when the vehicle is in motion, the kinematic chain being closed and the injection interrupted, a message from the computer of the transmission to the computer of the engine at a first moment in time so as to synchronize an opening of the clutch and the closure of an air flap of the engine at a second moment in time subsequent to the first moment.6. The control method as claimed in claim 5 , wherein a request to open is sent to the clutch between the first moment and the second moment.7. The control method as claimed in claim 5 , wherein the shutdown of the engine and the opening of the transmission are triggered automatically as the vehicle is in motion when there is no longer any need for traction.8. The control method as claimed in claim 5 , wherein claim 5 , to prepare the shutdown of the engine when the vehicle is stopped with its ...

Подробнее
Номер записи: 83
23-03-2017 дата публикации

INTELLIGENT COASTING MANAGEMENT

Номер: US20170080945A1
Автор: Dempsey Daniel R., Hall Tony J.
Принадлежит: Cummins Inc.

Methods of operating internal combustion engines are provided. A controller detects a coasting event while an associated vehicle is in motion. In response to the coasting event, the controller directs at least a portion of an exhaust gas output by an exhaust system of an internal combustion engine of the vehicle into an intake system of the internal combustion engine. 1. A method of operating an internal combustion engine of a vehicle , the method comprising:detecting, by a controller, a coasting event when the vehicle is in motion; andresponsive to detecting a coasting event, directing at least a portion of an exhaust gas output by an exhaust system of the internal combustion engine into an intake system of the internal combustion engine.2. The method of claim 1 , wherein directing at least a portion of the exhaust gas output by an exhaust system of the internal combustion engine into an intake system of the internal combustion engine includes actuating at least one airflow valve connected between the exhaust system and the intake system.3. The method of claim 1 , wherein directing at least a portion of an exhaust gas output by an exhaust system of the internal combustion engine into an intake system of the internal combustion engine includes adjusting a flow rate of the exhaust gas into the intake system such that a combined flow rate of the exhaust gas and atmospheric air into the intake system is substantially constant.4. The method of claim 1 , wherein directing at least a portion of the exhaust gas output by an exhaust system of the internal combustion engine into an intake system of the internal combustion engine includes beginning directing at least a portion of the exhaust gas after a predetermined time following detecting claim 1 , by the controller claim 1 , the coasting event.5. The method of claim 1 , further comprising claim 1 , responsive to detecting a coasting event claim 1 , drivingly decoupling the internal combustion engine from at least one ...

Подробнее
Номер записи: 84
31-03-2022 дата публикации

Driving force control device

Номер: US20220097662A1
Автор: Shin Noumura
Принадлежит: Toyota Motor Corp

The driving force control device includes: a requested driving force calculation unit configured to calculate requested driving force requested to the vehicle, in a coasting state where neither an accelerator operation nor a brake operation is performed by a driver; a power train control unit configured to control a gear ratio of the power train on the basis of the requested driving force and driving force that is achieved by the power train in the coasting state; a braking force calculation unit configured to calculate braking force required for achieving the requested driving force, when the requested driving force is smaller than driving force that is achieved by the power train at a gear ratio set by the power train control unit; and a brake control unit configured to cause the brake to generate the braking force calculated by the braking force calculation unit.

Подробнее
Номер записи: 85
25-03-2021 дата публикации

CONTROL METHOD FOR SSC AND ISG OF VEHICLE AND VEHICLE TO WHICH THE CONTROL METHOD IS APPLIED

Номер: US20210088017A1
Автор: Bang Jung Hwan, Lee Jun Yong
Принадлежит:

A control method for a Start Stop Coasting (SSC) function and an Stop and Go (ISG) function of a manual transmission vehicle includes: determining, by a controller, whether an SSC activation condition is satisfied based on vehicle running state information; stopping, by the controller, an engine and disengaging a clutch to activate the SSC function when the controller determines that the SSC activation condition is satisfied; determining, by the controller, whether a first ISG operation is satisfied based on the vehicle running state information in the state that the SSC function is activated; and deactivating, by the controller, the SSC function and activating the ISG function when the controller determines that the first ISG operation condition is satisfied. 1. A control method for a Start Stop Coasting (SSC) function and an Idle Stop and Go (ISG) function of a vehicle having a manual transmission , the control method comprising:determining, by a controller, whether an SSC activation condition is satisfied based on vehicle running state information;stopping, by the controller, an engine and disengaging a clutch to activate the SSC function when the controller determines that the SSC activation condition is satisfied;determining, by the controller, whether a first ISG operation condition including a first reference vehicle speed is satisfied based on the vehicle running state information in a state that the SSC function is activated; anddeactivating, by the controller, the SSC function and activating the ISG function when the controller determines that the first ISG operation condition is satisfied.2. The control method of claim 1 , wherein:the SSC activation condition is satisfied when an accelerator pedal is not operated, a brake pedal is not operated, a clutch pedal is not operated, a gear lever is in a traveling stage, and a vehicle speed is a predetermined SSC entry vehicle speed based on the vehicle running state information.3. The control method of claim 2 , ...

Подробнее
Номер записи: 86
29-03-2018 дата публикации

Method for Operating a Drive Device for a Motor Vehicle and Corresponding Drive Device

Номер: US20180086335A1
Автор: ENKE Martin
Принадлежит: Audi AG

A method for operating a drive device for a motor vehicle. The drive device has an internal combustion engine, an output shaft, and a clutch connected between the internal combustion engine and the output shaft. In a coasting operating mode, an idling speed control of the internal combustion engine to an idling speed is carried out and the clutch is opened, and, in an overrun operating mode, the clutch is closed. When shifting from the coasting operating mode to the overrun operating mode, while, at the same time, carrying out the idling speed control of the internal combustion engine to the idling speed, the clutch is closed, so that an entrainment of the internal combustion engine occurs. 110-. (canceled)11. A method for operating a drive device for a motor vehicle , wherein the drive device has an internal combustion engine , an output shaft , and a clutch connected between the internal combustion engine and the output shaft , and wherein , in a coasting operating mode , an idling speed control of the internal combustion engine to an idling speed is carried out and the clutch is opened and , in an overrun operating mode , the clutch is closed , wherein the clutch is closed when shifting from the coasting operating mode to the overrun operating mode , while , at the same time , carrying out the idling speed control of the internal combustion engine to the idling speed , so that an entrainment of the internal combustion engine occurs.12. The method according to claim 11 , wherein the clutch is only partially closed in a first step.13. The method according to claim 12 , wherein claim 12 , in a second step claim 12 , the clutch is completely closed when an internal combustion engine speed corresponds to a transmission speed of a transmission of the drive device.14. The method according to claim 13 , wherein the shifting is terminated as soon as the internal combustion engine speed corresponds to the transmission speed.15. The method according to claim 11 , wherein a ...

Подробнее
Номер записи: 87
31-03-2016 дата публикации

METHOD AND SYSTEM FOR EXITING A SAILING MODE OF A VEHICLE

Номер: US20160090093A1
Автор: NELL Markus, Neumann Lutz, SCHIRNHOFER Robert, SOLLER Tobias, THEIN Sebastian
Принадлежит:

A method () for exiting a sailing mode of a vehicle () is described. The vehicle () comprises a clutch unit () which is disengaged in order to decouple a driving shaft () of the vehicle () from a driven shaft () of the vehicle (), when the vehicle () is operated in the sailing mode. The method () comprises predicting () that a trigger for an exit of the sailing mode will occur, and initiating () the preparation of the clutch unit () for engagement, subject to predicting that a trigger for the exit of the sailing mode will occur. Furthermore, the method () comprises detecting () a trigger for the exit of the sailing mode, and adapting () a shaft speed () of the driving shaft (), subject to detecting a trigger for the exit of the sailing mode. In addition, the method () comprises engaging () the clutch unit (), subject to preparing the clutch unit () for engagement and subject to adapting the shaft speed (), in order to exit the sailing mode. 1. A method for exiting a sailing mode of a vehicle; wherein a clutch unit of the vehicle is disengaged in order to decouple a driving shaft of the vehicle from a driven shaft of the vehicle , when the vehicle is operated in the sailing mode; the method comprisingpredicting that a trigger for an exit of the sailing mode will occur;initiating the preparation of the clutch unit for engagement, subject to predicting that a trigger for the exit of the sailing mode will occur;detecting a trigger for the exit of the sailing mode;adapting a shaft speed of the driving shaft, subject to detecting a trigger for the exit of the sailing mode; andengaging the clutch unit, subject to preparing the clutch unit for engagement and subject to adapting the shaft speed, in order to exit the sailing mode.2. The method of claim 1 , wherein a trigger for the exit of the sailing mode is predicted based on sensor data from one or more vehicle sensors.3. The method of claim 2 , wherein the one or more vehicle sensors comprise one or more of:a throttle ...

Подробнее
Номер записи: 88
31-03-2016 дата публикации

CONTROL SYSTEM FOR VEHICLE

Номер: US20160090094A1
Автор: ASAMI Tomohiro, ICHIKAWA Masahide
Принадлежит:

A control system is for a vehicle. The control system includes an electronic control unit configured to perform a coast downshift, and execute blipping control during performance of the coast downshift. The electronic control unit is configured to determine whether blipping abnormality occurs. The electronic control unit is configured to disengage an engagement element on an engagement side when the blipping abnormality occurs during the performance of the coast downshift. The electronic control unit is configured to increase a speed of the engine in the blipping control. The blipping abnormality is a state that the blipping control is not executed normally during the performance of the coast downshift. The engagement element on the engagement side is an engagement element that is changed from a disengaged state to an engaged state in the coast downshift. 1. A control system for a vehicle , the vehicle including an engine and an automatic transmission gear device , the automatic transmission gear device including a one-way clutch and a plurality of engagement elements , the engagement elements can be engaged and disengaged ,the control system comprising:an electronic control unit configured to perform a coast downshift, the electronic control unit being configured to execute blipping control during performance of the coast downshift, the electronic control unit being configured to determine whether blipping abnormality occurs, the electronic control unit being configured to disengage the engagement element on an engagement side when the blipping abnormality occurs during the performance of the coast downshift, the electronic control unit being configured to increase a speed of the engine in the blipping control, the blipping abnormality being a state that the blipping control is not executed normally during the performance of the coast downshift, and the engagement element on the engagement side being an engagement element that is changed from a disengaged state to ...

Подробнее
Номер записи: 89
30-03-2017 дата публикации

Systems, Methods, And Vehicles For Generating Cues To Drivers

Номер: US20170088049A1
Автор: Joshua D. Payne, Lincoln Morfin, Vincent E. Roa
Принадлежит: Toyota Motor Engineering and Manufacturing North America Inc

Systems, methods and vehicles for generating cues to drivers of vehicles are disclosed. A system for generating a cue to a driver of a vehicle including at least one processor, at least one memory module communicatively coupled to the at least one processor, at least one stop (S) stored in the at least one memory module and at least one object sensor communicatively coupled to the at least one processor. When executed by the at least one processor, the machine readable instructions cause the cue generating system to detect a presence of an object in front of the vehicle, determine a cue position (P cue ) for generating a cue based on the detected presence of the object and the stop (S), and generate the cue to a driver of the vehicle based on the first position and the cue position (P cue ).

Подробнее
Номер записи: 90
05-05-2022 дата публикации

AUTOMATIC POWERTRAIN OPERATION FOR MAINTENANCE OF NEUTRAL OPERATION

Номер: US20220134979A1
Автор: Ansbacher Todd, Fitzgerald Ronald, Holub Patrick, Stratton Adam, Van Wiemeersch John
Принадлежит: FORD GLOBAL TECHNOLOGIES, LLC

A method for managing electrical Key Off Load (KOL) and other potentially damaging operational conditions in a vehicle while in a neutral mode setting, comprising: determining a vehicle drivetrain is in the neutral mode setting; determining an operational characteristic that changes with time while the vehicle is in the neutral mode setting; performing, via a vehicle control module and based on the neutral mode setting and the operational characteristic, vehicle actions comprising engaging an automated start powertrain activation while the vehicle is in the neutral mode setting.

Подробнее
Номер записи: 91
19-03-2020 дата публикации

VEHICLE CONTROL APPARATUS

Номер: US20200086846A1
Автор: Aoki Mitsuo, INOUE Yoshitsugu, KATSUME Akihito, KURODA Kyousuke, Sagawa Shinya, YAMAMURO Tomoyuki
Принадлежит:

A vehicle control apparatus, configured to control a vehicle, includes an engine that is configured to drive wheels via a power transmission device. The vehicle control apparatus includes a towing state detector and an engine controller. The towing state detector is configured to detect whether the vehicle is in a towing state. The engine controller is configured to stop the engine in a case where a predetermined engine stopping condition is satisfied during traveling of the vehicle. The engine controller is configured to vary, in a case where the towing state detector detects that the vehicle is in the towing state, the predetermined engine stopping condition to reduce an operational range in which the engine is to be stopped compared with an operational range in a case where the towing state detector does not detect that the vehicle is in the towing state. 1. A vehicle control apparatus configured to control a vehicle , the vehicle including an engine that is configured to drive wheels via a power transmission device , the vehicle control apparatus comprising:a towing state detector configured to detect whether the vehicle is in a towing state; andan engine controller configured to stop the engine in a case where a predetermined engine stopping condition is satisfied during traveling of the vehicle, whereinthe engine controller is configured to vary, in a case where the towing state detector detects that the vehicle is in the towing state, the predetermined engine stopping condition to reduce an operational range in which the engine is to be stopped compared with an operational range in a case where the towing state detector does not detect that the vehicle is in the towing state.2. The vehicle control apparatus according to claim 1 , further comprising an inter-vehicle distance detector configured to detect an inter-vehicle distance from the vehicle to another vehicle that travels immediately before the vehicle claim 1 , whereinthe predetermined engine stopping ...

Подробнее
Номер записи: 92
19-03-2020 дата публикации

METHOD AND APPARATUS FOR CONTROLLING A VEHICLE IN A COASTING MODE

Номер: US20200086872A1
Автор: Bhattarai Birendra P, Nicholson Daniel E, Tamai Goro
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A powertrain system for a vehicle is described, and includes an internal combustion engine that is selectively coupled to a driveline. The engine is configured to operate in a coasting mode, wherein the coasting mode includes operating the powertrain system with the engine in an OFF state and decoupled from the driveline. Devices are configured to monitor an output torque request, vehicle speed, and vehicle operating conditions. An executable instruction set monitors the vehicle speed and the output torque request. The engine is controlled to operate in the coasting mode when the output torque request is within the predetermined torque region and the vehicle speed is greater than a minimum speed threshold. The engine is controlled to discontinue operating in the coasting mode in response to the output torque request being outside the torque region of the vehicle speed being less than a minimum speed threshold. 1. A powertrain system for a vehicle , comprising:an internal combustion engine selectively coupled to a driveline, wherein the internal combustion engine is configured to operate in a coasting mode, wherein the coasting mode includes operating the powertrain system with the internal combustion engine in an OFF state;a plurality of devices disposed to monitor vehicle operating conditions; anda controller, operatively connected to the internal combustion engine and in communication with the plurality of devices disposed to monitor vehicle operating conditions; determine vehicle speed,', 'determine an output torque request,', 'decouple the internal combustion engine from the driveline,', 'control the internal combustion engine to operate in the coasting mode when the output torque request is within a predetermined torque region and the vehicle speed is greater than a minimum speed threshold, and', 'control the internal combustion engine to discontinue operating in the coasting mode in response to one of the output torque request being outside the predetermined ...

Подробнее
Номер записи: 93
19-06-2014 дата публикации

Method for increasing active duration time of an automatic freewheeling function in a vehicle

Номер: US20140172264A1
Автор: Anders Eriksson, Johan Bjernetun
Принадлежит: VOLVO LASTVAGNAR AB

A method for increasing active duration time of an automatic freewheeling function in a vehicle with cruise control and during a cruise control active period is provided. The function includes an arrangement for determining a vehicle set speed (Vset speed) for when the function is allowed to be activated and means for calculating a predetermined allowable vehicle speed drop to a first under speed value (Vunderspeed) below the vehicle set speed (Vset speed). The function is controlled based on said under speed value, in order to extend active duration time of the function.

Подробнее
Номер записи: 94
09-04-2015 дата публикации

CONTROL DEVICE AND CONTROL METHOD FOR FOUR-WHEEL DRIVE VEHICLE

Номер: US20150096821A1
Автор: ARAI Masayuki
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

A four-wheel drive vehicle includes an engine, a transmission provided on a power transmission path between a main drive wheel and a subsidiary drive wheel, and a connection-disconnection mechanism provided on a power transmission path between the transmission and the subsidiary drive wheel to selectively connect and disconnect the power transmission path. A control device for the four-wheel drive vehicle includes an electronic control unit. The electronic control unit is configured to control a transmission torque of the transmission to be less than or equal to a predetermined value when a predetermined condition is satisfied during traveling, and to control the connection-disconnection mechanism so as to at least partially overlap a time during which the transmission torque of the transmission is controlled to be less than or equal to the predetermined value and a time during which the power transmission path is disconnected by the connection-disconnection mechanism. 1. A control device for a four-wheel drive vehicle , the four-wheel drive vehicle including an engine , a transmission provided on a power transmission path between a main drive wheel and a subsidiary drive wheel , and a connection-disconnection mechanism provided on a power transmission path between the transmission and the subsidiary drive wheel to selectively connect and disconnect the power transmission path between the transmission and the subsidiary drive wheel , the control device comprising:an electronic control unit configured to(a) control a transmission torque of the transmission to be less than or equal to a predetermined value when a predetermined condition is satisfied during traveling, and(b) control the connection-disconnection mechanism so as to at least partially overlap a time during which the transmission torque of the transmission is controlled to be less than or equal to the predetermined value and a time during which the power transmission path is disconnected by the connection- ...

Подробнее
Номер записи: 95
12-05-2022 дата публикации

Method and Device for Controlling Autonomous Driving

Номер: US20220144310A1
Автор: Bang Kyung Joo, Hong Jeong Ki, Kim Dong Hyuk, KIM Il Hwan, Kim Kyeong Eun, Min Byeong Hyeok
Принадлежит:

An embodiment method for controlling autonomous driving in a vehicle with an incorporated semi-autonomous driving system and warning alarm system includes monitoring a status of a driver during semi-autonomous driving, generating a state signal based on the monitoring, the state signal indicating a state that includes a warning state, a coasting state and a braking state, and performing a driver emergency assistance operation based on the state signal, wherein the vehicle transitions to the warning state, the coasting state, or the braking state based on the state signal to perform a corresponding driver emergency assistance operation. 1. A method for controlling autonomous driving in a vehicle with an incorporated semi-autonomous driving system and warning alarm system , the method comprising:monitoring a status of a driver during semi-autonomous driving;generating a state signal based on the monitoring, the state signal indicating a state that includes a warning state, a coasting state and a braking state; andperforming a driver emergency assistance operation based on the state signal, wherein the vehicle transitions to the warning state, the coasting state, or the braking state based on the state signal to perform a corresponding driver emergency assistance operation.2. The method of claim 1 , wherein the coasting state is a state capable of being activated after the warning state.3. The method of claim 2 , wherein the braking state is a state capable of being activated after the coasting state.4. The method of claim 1 , wherein:the coasting state includes a primary coasting state capable of being activated before the warning state and a secondary coasting state capable of being activated after the warning state; andthe braking state is a state capable of being activated after the secondary coasting state.5. The method of claim 1 , further comprising:collecting host vehicle state sensing information and forward vehicle sensing information; andgenerating a ...

Подробнее
Номер записи: 96
14-04-2016 дата публикации

APPARATUS AND METHOD FOR GUIDING DRIVER TO COASTING OF IN ECO-FRIENDLY VEHICLE

Номер: US20160101780A1
Автор: PARK Joon Young
Принадлежит:

The present disclosure provides an apparatus and method for guiding a driver in coasting of an eco-friendly vehicle at an appropriate timing in a situation where deceleration is needed, which can enable economic driving through energy savings and improve the mileage and fuel efficiency of the vehicle. 1. An apparatus for guiding a driver in coasting of an eco-friendly vehicle , the apparatus comprising:a vehicle speed detector detecting a current vehicle speed of the vehicle;a data storage unit storing map data including information about locations of deceleration events at which the vehicle needs to be decelerated and information about target vehicle speeds at each deceleration event;a Global Positioning System (GPS) receiver receiving GPS information;an information providing unit providing information to the driver; anda controller acquiring i) the current vehicle speed from the vehicle speed detector, ii) the information about locations of the deceleration events and the information about the target vehicle speeds in the map data from the data storage unit, and iii) the GPS information from the GPS receiver, determining whether the vehicle enters a coasting guide section based on the current vehicle speed and a target vehicle speed at a deceleration event in front of the vehicle, and controlling the information providing unit so as to output information for guiding the driver in coasting of the vehicle when determining that the vehicle enters the coasting guide section.2. The apparatus of claim 1 , wherein the map data is three-dimensional (3D) map data including road slope information indicating a road slope claim 1 , andthe controller acquires road slope information associated with the deceleration event from the 3D map data and determines whether the vehicle enters the coasting guide section based on the current vehicle speed, the target vehicle speed, and the road slope.3. The apparatus of claim 2 , wherein the coasting guide section is a section of a road on ...

Подробнее
Номер записи: 97
26-03-2020 дата публикации

Operating A Motor Vehicle With An Advanced Motor Restart Out Of The Engine-Off Coasting Mode

Номер: US20200094833A1
Автор: Hamperl Helmut, Wankerl Lisa
Принадлежит: CPT Group GmbH

Various embodiments include a method for controlling a motor vehicle having an internal combustion engine with a crankshaft and a drivetrain separable from the internal combustion engine using a releasable clutch comprising: propelling the vehicle in a first operating state in a predetermined range around a speed while the internal combustion engine is off and is separated from the drivetrain by the releasable clutch; sensing a braking operation while in the first operating state; predicting whether a power demand is expected within a predetermined time interval; and, if the power demand is expected, setting the crankshaft of the internal combustion engine in rotation, or increasing a rotational speed of the crankshaft in preparation for an engine restart. 1. A method for controlling a motor vehicle having an internal combustion engine with a crankshaft and a drivetrain separable from the internal combustion engine using a releasable clutch , the method comprising:propelling the vehicle in a first operating state in a predetermined range around a speed while the internal combustion engine is off and is separated from the drivetrain by the releasable clutch;sensing a braking operation while in the first operating state;predicting whether a power demand is expected within a predetermined time interval; andif the power demand is expected, setting the crankshaft of the internal combustion engine in rotation, or increasing a rotational speed of the crankshaft in preparation for an engine restart.2. The method for operating a motor vehicle as claimed in claim 1 , wherein predicting whether a power demand is expected within the predetermined time interval includes analysing present state data of the drivetrain and/or driver inputs and/or information items from vehicle sensors and/or route information items.3. The method for operating a motor vehicle as claimed in claim 1 , wherein predicting whether a power demand is expected within the predetermined time interval includes ...

Подробнее
Номер записи: 98
04-04-2019 дата публикации

Vehicle Control Device

Номер: US20190100207A1
Автор: IIHOSHI Yoichi, MARUYAMA Nahoko, TANIMICHI Taisetsu
Принадлежит:

The purpose of the present invention is to improve fuel efficiency during coasting by calculating, with high accuracy, travel resistance during coasting. This vehicle control device comprises: a first travel resistance acquisition unit that acquires a first travel resistance, which is determined on the basis of road information or external information; and a second travel resistance acquisition unit that acquires a second travel resistance, which is determined on the basis of the result of actual traveling of the vehicle. This vehicle control device determines the content of coasting travel control during traveling of the vehicle on the basis of the result of a comparison of the first travel resistance and the second travel resistance in a predetermined zone where the vehicle has actually traveled. 110.-. (canceled)11. A vehicle control device comprising:a first travel resistance acquisition unit that acquires a first travel resistance, which is determined on a basis of road information or external information; anda second travel resistance acquisition unit that acquires a second travel resistance, which is determined on a basis of a result of actual traveling of a vehicle, whereincontent of coasting travel control during traveling of the vehicle is determined on a basis of a result of a comparison of the first travel resistance and the second travel resistance in a predetermined zone where the vehicle has actually traveled.12. The vehicle control device according to claim 11 , wherein the content of coasting travel control includes at least one of a stop of fuel injection claim 11 , disengagement and engagement of a clutch claim 11 , and a transmission gear ratio.13. The vehicle control device according to claim 11 , wherein information on at least one of a planimetric feature requiring deceleration claim 11 , upper/lower limit speed claim 11 , vehicle speed of a preceding vehicle claim 11 , and distance between vehicles is used in planning the content of coasting ...

Подробнее
Номер записи: 99
04-04-2019 дата публикации

METHOD AND APPARATUS FOR ASSISTING IN THE MAINTENANCE OF A VEHICLE SPEED WITHIN A SPEED RANGE, AND A VEHICLE COMPRISING SUCH AN APPARATUS

Номер: US20190100208A1
Автор: JANKEVICIUS Kestutis, PLIANOS Alex
Принадлежит:

Method and apparatus for maintaining a speed of a vehicle within a target speed range. A plurality of coasting profiles are generated for the vehicle, each having an initial speed and a starting point on a predicted vehicle path. Each coasting profile represents a predicted vehicle speed over a time and/or distance from the starting point and is generated based on a geometry of at least a portion of the predicted vehicle path. At least one of the coasting profiles that maintains the speed of the vehicle within the target speed range is identified. A prime mover of the vehicle is controlled to place the vehicle into a coasting mode in accordance with the at least one identified coasting profile. Alternatively, feedback is provided to a user to place the vehicle into a coasting mode, such that the vehicle will coast in accordance with the at least one identified coasting profile. 1. A method of assisting in the maintenance of a speed of a vehicle within a target speed range , the method comprising:generating a plurality of coasting profiles for the vehicle, each coasting profile having an initial speed and a starting point on a predicted vehicle path, where each coasting profile represents a predicted vehicle speed over a time and/or distance from the starting point and is generated based on a geometry of at least a portion of the predicted vehicle path;identifying at least one of the coasting profiles that maintains the speed of the vehicle within the target speed range; andoutputting a coasting signal for either:controlling a prime mover of the vehicle to place the vehicle into a coasting mode in accordance with the at least one identified coasting profile; orproviding feedback to a vehicle user to place the vehicle into a coasting mode, such that the vehicle if placed in the coasting mode by the user will coast in accordance with the at least one identified coasting profile.2. The method of claim 1 , comprising adjusting a speed of the vehicle to match the initial ...

Подробнее
Номер записи: 100