公开(公告)号：US09975451B2

公开(公告)日：2018-05-22

申请号：US15130383

申请日：2016-04-15

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Luke D. Shepley ,  Joshua F. Pacheco ,  Krunal P. Patel ,  Anthony H. Heap ,  Michael Andrew Miller ,  Michael V. Woon

IPC: B60L9/00 ,  B60L15/20 ,  B60W20/14 ,  B60L7/14 ,  B60W50/00 ,  B60K6/485 ,  B60W10/08 ,  B60W20/00

CPC classification number: B60L15/2009 ,  B60K6/485 ,  B60L7/14 ,  B60L11/12 ,  B60L2240/423 ,  B60L2240/463 ,  B60L2240/486 ,  B60L2250/26 ,  B60W10/08 ,  B60W20/00 ,  B60W20/14 ,  B60W50/0097 ,  B60W2510/1005 ,  B60W2520/30 ,  B60W2540/14 ,  B60W2710/083 ,  Y02T10/6226 ,  Y02T10/7258 ,  Y10S903/947

Abstract: A powertrain system including an internal combustion engine, a transmission and an electric machine is described, and includes the electric machine rotatably coupled to a crankshaft of the internal combustion engine. The transmission is coupled to a driveline to transfer tractive torque and braking torque thereto. A method for controlling the electric machine includes determining a short-term axle torque capacity, a long-term axle torque capacity and a maximum regenerative braking stall torque capacity, and determining an operator request for braking. A preferred regenerative braking capacity is determined based upon the short-term axle torque capacity, the long-term regenerative braking capacity, the engine stall regenerative braking capacity and the operator request for braking. Torque output from the electric machine is controlled based upon the preferred regenerative braking capacity.

公开(公告)号：US09809130B2

公开(公告)日：2017-11-07

申请号：US15079412

申请日：2016-03-24

Applicant: GM Global Technology Operations LLC

Inventor： Adam J. Heisel ,  Christopher J. Twarog ,  Anthony H. Heap ,  Derek S. Bonderczuk ,  Krunal P. Patel ,  Lawrence A. Kaminsky ,  Nathaniel S. Michaluk ,  Robert L. Morris ,  Shaochun Ye ,  Jeffrey J. Waldner

IPC: B60L15/20

CPC classification number: B60L15/20 ,  B60L11/14 ,  B60L2240/12 ,  B60L2240/14 ,  B60L2240/421 ,  B60L2240/423 ,  B60L2240/44 ,  B60L2240/441 ,  B60L2240/443 ,  B60L2250/26 ,  B60L2270/12 ,  Y02T10/7258

Abstract: An electric motor control system for a vehicle includes a vehicle speed module that determines a vehicle speed. A closed loop (CL) module determines a CL torque based on a difference between a target vehicle speed and the vehicle speed. A motor torque module determines a motor torque based on the CL torque and a motor torque request determined based on a position of an accelerator pedal. A switching control module controls switching of an inverter based on the motor torque to control application of power to an electric motor of the vehicle.

公开(公告)号：US09487104B2

公开(公告)日：2016-11-08

申请号：US14093681

申请日：2013-12-02

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Jihoon Jang ,  Sean W. McGrogan ,  William R. Cawthorne ,  Krunal P. Patel ,  Bon Ho Bae

IPC: H02P23/14 ,  B60L15/20 ,  B60W20/00 ,  B60L11/14

CPC classification number: B60L15/20 ,  B60L11/14 ,  B60L2240/12 ,  B60L2240/421 ,  B60L2240/423 ,  B60L2240/441 ,  B60L2240/443 ,  B60W20/00 ,  B60W20/40 ,  H02P23/14 ,  Y02T10/645 ,  Y02T10/70 ,  Y02T10/7077 ,  Y02T10/72 ,  Y02T10/7275 ,  Y10S903/903

Abstract: A method for controlling an electrically-powered torque machine of a powertrain system includes determining a predicted torque command to control the torque machine. A flux command is determined responsive to the predicted torque command. The flux command is a flux level providing a fast torque reserve that is responsive to the predicted torque command. The fast torque reserve is a prescribed minimum rate of change in torque output from the torque machine responsive to the predicted torque command. An inverter controller controls flux of the torque machine responsive to the flux command.

Abstract translation: 一种用于控制动力系统的电动力矩机的方法，包括确定用于控制扭矩机的预测转矩指令。 响应于预测转矩指令确定磁通指令。 通量指令是提供响应于预测转矩指令的快速转矩储备的通量水平。 快速扭矩储备是根据预测的扭矩指令从转矩机输出的扭矩的规定的最小变化率。 逆变器控制器根据通量指令控制扭矩机的通量。

公开(公告)号：US11964567B2

公开(公告)日：2024-04-23

申请号：US17152077

申请日：2021-01-19

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Rashad K. Maady ,  Krunal P. Patel ,  Matthew Yard ,  Kristopher D. Lang

IPC: B60L15/20 ,  B60L58/14

CPC classification number: B60L15/20 ,  B60L58/14 ,  B60L2220/42 ,  B60L2240/423 ,  B60L2240/54

Abstract: A propulsion control system has an electric motor configured to generate an axle torque in response to a final torque command, and has a motor constraint that specifies a maximum torque. A motor controller is configured to generate the final torque command in response to an intermediate torque command and a distributed power limit command. An open-loop function in supervisory controller is configured to calculate an initial torque command vector in response to a driver torque command, calculate an intended operating vector by mapping the initial torque command vector into a multidimensional power space, generate the intermediate torque command by clipping the intended operating vector in response to the motor constraint, generate a constrained command vector by clipping the intended operating vector in response to the motor constraint and a plurality of energy storage constraints, and generate the distributed power limit command in response to the constrained command vector.

公开(公告)号：US11752881B2

公开(公告)日：2023-09-12

申请号：US17153244

申请日：2021-01-20

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Paul G. Otanez ,  Yiran Hu ,  Nathaniel S. Michaluk ,  Krunal P. Patel ,  Adam J. Heisel ,  Kevin J. Storch ,  Jacob M. Knueven ,  Matthew Yard

IPC: B60L15/20 ,  B60T8/17 ,  B60W10/18 ,  B60W10/184 ,  B60W30/09

CPC classification number: B60L15/2009 ,  B60T8/1701 ,  B60W10/18 ,  B60W10/184 ,  B60W30/09

Abstract: A method of operating a vehicle includes a vehicle controller receiving an operator-input vehicle control command with an associated torque request, and identifying any propulsion actuator constraints that limit a brake torque capacity available from the vehicle powertrain. Using the propulsion actuator constraint(s) and torque request, the controller determines a propulsion brake torque distribution for the vehicle's road wheels and a maximum brake torque capacity for the powertrain actuator(s). A first brake torque request is determined using the propulsion brake torque distribution and a vehicle control mode of the powertrain system, and a second brake torque request is determined using the maximum brake torque capacity and the vehicle control mode. A friction brake torque command is determined by arbitrating between the first and second brake torque requests. The vehicle controller transmits the friction brake torque command to the friction brake system and a powertrain brake command to the powertrain actuator(s).

公开(公告)号：US20220227239A1

公开(公告)日：2022-07-21

申请号：US17152077

申请日：2021-01-19

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Rashad K. Maady ,  Krunal P. Patel ,  Matthew Yard ,  Kristopher D. Lang

IPC: B60L15/20 ,  B60L58/13

Abstract: A propulsion control system has an electric motor configured to generate an axle torque in response to a final torque command, and has a motor constraint that specifies a maximum torque. A motor controller is configured to generate the final torque command in response to an intermediate torque command and a distributed power limit command. An open-loop function in supervisory controller is configured to calculate an initial torque command vector in response to a driver torque command, calculate an intended operating vector by mapping the initial torque command vector into a multidimensional power space, generate the intermediate torque command by clipping the intended operating vector in response to the motor constraint, generate a constrained command vector by clipping the intended operating vector in response to the motor constraint and a plurality of energy storage constraints, and generate the distributed power limit command in response to the constrained command vector.

公开(公告)号：US20200293034A1

公开(公告)日：2020-09-17

申请号：US16351851

申请日：2019-03-13

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Jonathan T. Shibata ,  Paul A. Kilmurray ,  Krunal P. Patel ,  David H. Vu ,  Vukasin Denic ,  Adam J. Heisel ,  Mohsen Mehdizade

IPC: G05D1/00 ,  G05D1/02

Abstract: Methods and apparatus are provided for controlling an autonomous vehicle. The control device includes an interface that establishes a connection to an autonomous vehicle, a processor that processes inputs and generates control commands to control at least one function of the autonomous vehicle, and an input arrangement with at least one control element that is assigned to a function of the autonomous vehicle. The control device transitions a controller of the autonomous vehicle to operate in at least one of a first remote operation mode and a second remote operation mode in which the autonomous vehicle is controlled by the control device, when the control device is connected to the autonomous vehicle via the interface. At least one function of a scope of functions of the autonomous vehicle is restricted in the first remote operation mode and the second remote operation mode.

公开(公告)号：US11708060B2

公开(公告)日：2023-07-25

申请号：US17165145

申请日：2021-02-02

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Matthew Yard ,  Krunal P. Patel ,  Karthikeyan Palanichamy ,  Luke D. Shepley

IPC: B60W10/08 ,  B60W10/119

CPC classification number: B60W10/08 ,  B60W10/119 ,  B60W2510/083 ,  B60W2710/083

Abstract: A method for distributing electrical power to electric motors in an electric powertrain, in which the electric motors are electrically connected to a shared power supply, includes receiving input signals via a supervisory controller. The input signals include a total torque request of the electric powertrain and electrical limits of the power supply. The method includes determining an open-loop torque command for each respective motor in response to the input signals. In response to the total torque request and the power supply limits, the controller also determines maximum and minimum power limits of motor, with the maximum and minimum power limits including a calibrated power reserve for executing a predetermined torque operation. The method includes transmitting the open-loop torque command and the power limits to a respective motor control processor of each motor to thereby control the torque operation.

公开(公告)号：US20220242387A1

公开(公告)日：2022-08-04

申请号：US17165145

申请日：2021-02-02

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Matthew Yard ,  Krunal P. Patel ,  Karthikeyan Palanichamy ,  Luke D. Shepley

IPC: B60W10/08 ,  B60W10/119

Abstract: A method for distributing electrical power to electric motors in an electric powertrain, in which the electric motors are electrically connected to a shared power supply, includes receiving input signals via a supervisory controller. The input signals include a total torque request of the electric powertrain and electrical limits of the power supply. The method includes determining an open-loop torque command for each respective motor in response to the input signals. In response to the total torque request and the power supply limits, the controller also determines maximum and minimum power limits of motor, with the maximum and minimum power limits including a calibrated power reserve for executing a predetermined torque operation. The method includes transmitting the open-loop torque command and the power limits to a respective motor control processor of each motor to thereby control the torque operation.

公开(公告)号：US20170297553A1

公开(公告)日：2017-10-19

申请号：US15132591

申请日：2016-04-19

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Krunal P. Patel ,  Samantha Victoria Lado ,  Jy-Jen F. Sah ,  Anthony H. Heap

IPC: B60W20/10 ,  B60K6/547

CPC classification number: B60W20/10 ,  B60K6/365 ,  B60K6/445 ,  B60K6/547 ,  B60W10/06 ,  B60W10/08 ,  B60W20/30 ,  B60W30/19 ,  B60W2540/10 ,  B60W2710/0672 ,  B60W2710/085 ,  Y02T10/6239 ,  Y02T10/6286

Abstract: A method for controlling a powertrain system in response to a command to execute a multi-state shift event for the transmission includes determining an initial output torque limit and determining an initial commanded output torque based upon the initial output torque limit. The powertrain system is controlled to generate torque in response to the initial commanded output torque prior to completion of a first state transition of the multi-state shift event that includes a commanded torque reduction. After completion of the first state transition of the multi-state shift event that includes the commanded torque reduction, a torque ramp rate is determined, and the initial commanded output torque is adjusted based upon the torque ramp rate. The powertrain system is controlled to generate torque in response to the initial commanded output torque and the adjusted initial commanded output torque during a remainder of the multi-state shift event.