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Небесная энциклопедия

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

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Мониторинг СМИ

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

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Применить Всего найдено 11. Отображено 11.
02-08-2012 дата публикации

SYSTEM AND METHOD OF VEHICLE SPEED-BASED OPERATIONAL COST OPTIMIZATION

Номер: US20120197504A1
Автор: Follen Kenneth, FROST Howard R., Moffett Barty L., Sujan Vivek A., Vajapeyazula Phani, Wu An
Принадлежит: CUMMINS INTELLECTUAL PROPERTY, INC.

A vehicle speed-based operational cost optimization module provides an optimized velocity profile over a given route while also considering imposed constraints such as deviation from time targets, deviation from maximum governed speed limits, etc. Given current vehicle speed, engine state and transmission state, the present disclosure optimally manages the engine map to provide a recommended vehicle speed that optimizes fuel consumption. Exemplary embodiments provide for offline and online optimizations relative to fuel consumption. The benefit is increased freight efficiency in transporting cargo from source to destination by minimizing fuel consumption and maintaining drivability. 1. A method for vehicle speed-based operational cost optimization for a vehicle , comprising:accessing predetermined vehicle parameter data indicative of at least one predetermined vehicle parameter, said at least one predetermined vehicle parameter including at least one of vehicle mass, vehicle drag, vehicle rolling resistance, tire circumference, front area of vehicle, and engine friction;accessing road terrain data indicative of at least one road terrain element, said at least one road terrain element including at least one of speed limit changes, off ramp locations, fueling locations, road grade, air density and traffic congestion;accessing operator input data indicative of at least one operator input, said at least one operator input including at least one of fuel cost, operator cost, trip time, route beginning and ending points to define a route, and maximum vehicle speed;performing a first optimization, wherein a vehicle speed optimization vector is determined based on said accessed predetermined vehicle parameter data, road terrain data, and said operator input data;accessing current vehicle operating data indicative of at least two current vehicle operating conditions, said at least two current vehicle operating conditions including current vehicle speed and road grade; ...

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Номер записи: 1
30-08-2012 дата публикации

System and method of vehicle fuel quantity management

Номер: US20120221234A1
Автор: An Wu, Barty L. Moffett, Howard R. Frost, Kenneth Follen, Phani Vajapeyazula, Vivek A. Sujan
Принадлежит: Cummins Intellectual Property Inc

Systems and methods of vehicle fuel quantity management are provided to assist in determining an optimal quantity of fuel to carry on-board a vehicle. Certain routes are sufficiently short so to not require a completely filled fuel tank to traverse. Additionally, most routes have an abundance of vehicle fueling stations that provide ample refueling opportunities, thus permitting an operator to carry less fuel than might be required to complete a route. Exemplary embodiments of the present disclosure balance initial fuel loading and fuel stops to optimize the amount of freight weight that can be carried for a given route. The benefit is increased freight efficiency in transporting cargo from source to destination while maintaining drivability.

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Номер записи: 2
08-02-2018 дата публикации

SYSTEM AND METHOD OF VEHICLE TRANSIENT TORQUE MANAGEMENT

Номер: US20180037213A1
Автор: Follen Kenneth, FROST Howard R., Sujan Vivek A., Vajapeyazula Phani, Wu An
Принадлежит:

A system for establishing a torque limit for a vehicle is provided. The system uses impending terrain and speed conditions to determine an optimum torque, which improves engine efficiency and reduces fuel consumption. 1. An apparatus comprising: a parameter circuit structured to receive a plurality of inputs including at least one of route parameter data, vehicle parameter data, or vehicle operating condition data, and', determine one or more segments of a route,', 'associate the plurality of inputs with one or more segments of the route,', 'determine a power output limit for a current segment of the route based on a scalar quantity derived from two or more forward segments in the route, and', 'generate an engine torque output limit based on the power output limit; and, 'a dynamic torque management circuit structured to], 'a cycle efficiency management circuit includingan engine control circuit structured to receive the engine torque output limit and to limit an engine torque output for the current segment of the route.2. The apparatus of claim 1 , wherein the power output limit is determined for each segment of the route sequentially.3. The apparatus of claim 1 , wherein the power output limit is a maximum amount of power required to travel through each route segment while substantially maintaining a desired vehicle speed.4. The apparatus of claim 1 , wherein receiving the plurality of inputs for each segment of the route occurs while traveling the route.5. The apparatus of claim 1 , wherein the engine torque output limit is less than a maximum available torque.6. The apparatus of claim 1 , wherein the scalar quantity is a function of an average and a standard deviation of determined power output limits.7. The apparatus of claim 1 , wherein the scalar quantity is a function of a variable that is proportional to the power output limit claim 1 , andwherein the dynamic torque management system is structured to retrieve the variable from a look-up table.8. The ...

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Номер записи: 3
21-08-2014 дата публикации

SYSTEM AND METHOD FOR ROUTE IDENTIFICATION USING A LOW COST GPS SYSTEM

Номер: US20140236434A1
Автор: Follen Kenneth, FROST Howard R., Khatri Jaidev, MOON Suk-Min, Sujan Vivek A., Vajapeyazula Phani, Wu An
Принадлежит:

A system and method for identifying and analyzing a route using an inexpensive GPS system is provided. The system and method provides a location for storing GPS and vehicle operating data for at least one route, requiring a plurality of runs over the at least one route. Once a predetermined minimum number of runs have been reached, the system and method define a route segment, interpolate additional data points using the GPS and vehicle operating data, synchronize the data over the plurality of runs, and analyze the data. The analyzed data is then provided to a module capable of controlling the operation of an internal combustion engine. The analyzed data is forward-looking in that it permits anticipation of vehicle operation, and more particularly, engine and transmission operation. 1. A route identification system , comprising:a GPS unit adapted to collect GPS data during an instance of a vehicle traveling a route;a processor configured to collect vehicle operating data during the instance of the vehicle traveling the route; anda storage unit adapted to receive the GPS and vehicle operating data in a non-transitory, computer-readable medium;wherein the processor is configured to control operation of a vehicle device during a subsequent instance of the vehicle traveling the route based on the GPS and vehicle operating data collected for a plurality of positions of the route during the prior instance of the vehicle traveling the route.2. The route identification system of claim 1 , wherein the processor interpolates the GPS and vehicle operating data after a predefined number of runs over the route before controlling operation of the vehicle device.3. The route identification system of claim 2 , wherein the processor decreases the amount of interpolation as the number of runs over the route increases due to the aggregation of the GPS and vehicle operating data for the route.4. The route identification system of claim 1 , wherein the storage unit receives the GPS ...

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Номер записи: 4
11-09-2014 дата публикации

SYSTEM AND METHOD OF VEHICLE TRANSIENT TORQUE MANAGEMENT

Номер: US20140257669A1
Автор: Follen Kenneth, FROST Howard R., Sujan Vivek A., Vajapeyazula Phani, Wu An
Принадлежит:

A system for establishing a torque limit for a vehicle is provided. The system uses impending terrain and speed conditions to determine an optimum torque, which improves engine efficiency and reduces fuel consumption.

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Номер записи: 5
13-11-2014 дата публикации

SYSTEM AND METHOD OF SPEED-BASED DOWNSPEED COASTING MANAGEMENT

Номер: US20140336887A1
Автор: Follen Kenneth, FROST Howard R., Moffett Barty L., Sujan Vivek A., Vajapeyazula Phani, Wu An
Принадлежит: CUMMINS INTELLECTUAL PROPERTY, INC.

A velocity profile can be used in conjunction with vehicle operating condition data to determine a gear shift schedule that mitigates the amount of service brake effort required to slow a vehicle by making optimal use of engine speed, friction and engine brakes. The gear shift point drives the engine to a higher operating speed and greater frictional torque, slowing the vehicle, which can then coast to a desired speed. The gear shift point can be timed to minimize fuel consumption during the maneuver. Thus, a vehicle downshift event is created based on the transmission gear recommendation. The benefit is increased freight efficiency in transporting cargo from source to destination by minimizing fuel consumption and maintaining drivability. 1. (canceled)2. A system , comprising:an internal combustion (IC) engine operably coupled to a vehicle;a transmission operably coupled to the IC engine, the transmission having a plurality of selectable gears; and determine a desired deceleration rate, and', 'determine a transmission gear recommendation based on a function of friction of the IC engine applied as a product against a difference between each of a product of vehicle mass and the desired deceleration rate; a product of air density, vehicle drag, and a function of a current vehicle speed; a product of rolling resistance, the vehicle mass, and a first function of road grade; and a product of the vehicle mass and a second function of the road grade., 'a processor coupled to the IC engine and to the transmission, the processor configured to3. The system of claim 2 , wherein the desired deceleration rate is based on a difference between a function of a lower vehicle speed target and the current vehicle speed divided by a function of a distance to coast before reaching the lower vehicle speed target.4. The system of claim 3 , wherein at least one of the current vehicle speed claim 3 , the lower vehicle speed target claim 3 , and the distance to coast before reaching the ...

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Номер записи: 6
25-06-2019 дата публикации

System and method of vehicle transient torque management

Номер: US10328923B2
Автор: An Wu, Howard R. Frost, Kenneth Follen, Phani Vajapeyazula, Vivek A. Sujan
Принадлежит: Cummins Intellectual Property Inc, Eaton Corp, PACCAR INC

A system for establishing a torque limit for a vehicle is provided. The system uses impending terrain and speed conditions to determine an optimum torque, which improves engine efficiency and reduces fuel consumption.

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Номер записи: 7
13-09-2016 дата публикации

System and method of speed-based downspeed coasting management

Номер: US9440635B2
Автор: An Wu, Barty L. Moffett, Howard R. Frost, Kenneth Follen, Phani Vajapeyazula, Vivek A. Sujan
Принадлежит: Cummins Intellectual Property Inc

A velocity profile can be used in conjunction with vehicle operating condition data to determine a gear shift schedule that mitigates the amount of service brake effort required to slow a vehicle by making optimal use of engine speed, friction and engine brakes. The gear shift point drives the engine to a higher operating speed and greater frictional torque, slowing the vehicle, which can then coast to a desired speed. The gear shift point can be timed to minimize fuel consumption during the maneuver. Thus, a vehicle downshift event is created based on the transmission gear recommendation. The benefit is increased freight efficiency in transporting cargo from source to destination by minimizing fuel consumption and maintaining drivability.

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Номер записи: 8
28-01-2014 дата публикации

System and method of vehicle fuel quantity management

Номер: US8639436B2
Автор: An Wu, Barty L. Moffett, Howard R. Frost, Kenneth Follen, Phani Vajapeyazula, Vivek A. Sujan
Принадлежит: Cummins Intellectual Property Inc

Systems and methods of vehicle fuel quantity management are provided to assist in determining an optimal quantity of fuel to carry on-board a vehicle. Certain routes are sufficiently short so to not require a completely filled fuel tank to traverse. Additionally, most routes have an abundance of vehicle fueling stations that provide ample refueling opportunities, thus permitting an operator to carry less fuel than might be required to complete a route. Exemplary embodiments of the present disclosure balance initial fuel loading and fuel stops to optimize the amount of freight weight that can be carried for a given route. The benefit is increased freight efficiency in transporting cargo from source to destination while maintaining drivability.

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Номер записи: 9
09-10-2019 дата публикации

Systems and methods for controlling a hybrid engine system

Номер: EP3548350A1
Автор: Arun Prakash Thunga GOPAL, Howard R. Frost, Vivek A. Sujan
Принадлежит: Cummins Inc

An apparatus includes a torque circuit and a clutch circuit. The torque circuit is structured to monitor a torque demand level of an engine. The clutch circuit is structured to (i) disengage an engine clutch of a transmission to decouple the engine from the transmission in response to the torque demand level of the engine falling below a threshold torque level and (ii) disengage a motor-generator clutch of the transmission to decouple a motor-generator from the engine in response to the torque demand level of the engine falling below the threshold torque level. The motor-generator is directly coupled to the transmission.

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Номер записи: 10
31-10-2017 дата публикации

System and method of vehicle transient torque management

Номер: US09802597B2
Автор: An Wu, Howard R. Frost, Kenneth Follen, Phani Vajapeyazula, Vivek A. Sujan
Принадлежит: Cummins Intellectual Property Inc

A system for establishing a torque limit for a vehicle is provided. The system uses impending terrain and speed conditions to determine an optimum torque, which improves engine efficiency and reduces fuel consumption.

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Номер записи: 11