公开(公告)号：US20170080915A1

公开(公告)日：2017-03-23

申请号：US14859801

申请日：2015-09-21

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： John J. Janczak ,  Eric Piper ,  Jeffrey J. Waldner

IPC: B60W20/10 ,  B60W10/08 ,  B60W30/19 ,  B60W10/06

CPC classification number: B60W20/10 ,  B60K6/547 ,  B60K2006/4825 ,  B60W10/06 ,  B60W10/08 ,  B60W30/188 ,  B60W30/19 ,  B60W2050/0026 ,  B60W2510/104 ,  B60W2520/10 ,  B60W2540/00 ,  B60W2540/10 ,  B60W2710/0677 ,  B60W2710/086 ,  Y02T10/56 ,  Y02T10/6252 ,  Y02T10/6286 ,  Y02T10/84 ,  Y10S903/902

Abstract: A torque-generating system includes one or more torque-generating devices, a transmission having an output member, and a controller. The controller executes a method to control an operation of the system when the output member is operating at zero output speed. The controller is programmed to determine a torque request level and an actual speed of the output member, and an effective speed of the output member, as a calibrated non-zero value, using the torque request level when the determined actual speed is zero. The controller calculates an effective power of the powertrain using the effective speed and torque request level. A control action is executed with respect to the powertrain using the calculated effective power, including transmitting powertrain control signals to the torque-generating device(s) to select an appropriate powertrain operating mode.

公开(公告)号：US20200241541A1

公开(公告)日：2020-07-30

申请号：US16259935

申请日：2019-01-28

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Travis R. McCawley ,  Jeffrey J. Waldner

IPC: G05D1/02 ,  G05D1/00

Abstract: Methods and systems for piecewise sinusoid trajectory planning including: receiving, by a processing unit disposed in an ego vehicle, point data defining a current path plan for the ego vehicle; fetching, by the processing unit, a current ego position along the current path plan; calculating, by the processing unit, a current velocity and an acceleration for the current ego position which is based in part on a velocity and acceleration derived from a previous planned trajectory, the planned trajectory is calculated by: setting a graph with a grid of nodes in the velocity-time domain of the search space connected by edges; evaluating the graph with a shortest path algorithm wherein the validity and cost with respect to desired constraints of vehicle motion and system limitations of each edge are determined by use of the piecewise sinusoidal path length, velocity, and acceleration profiles which are parameterized to connect pairs of nodes; setting, by the processing unit, the optimal vehicle trajectory equal to the set of connected edges, and thereby piecewise sinusoid velocity profiles, which minimize the objective cost function over some duration planned into the future.

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：US09688266B2

公开(公告)日：2017-06-27

申请号：US14859801

申请日：2015-09-21

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： John J. Janczak ,  Eric Piper ,  Jeffrey J. Waldner

IPC: B60W10/04 ,  B60W20/10 ,  B60W10/06 ,  B60W10/08 ,  B60W30/19

CPC classification number: B60W20/10 ,  B60K6/547 ,  B60K2006/4825 ,  B60W10/06 ,  B60W10/08 ,  B60W30/188 ,  B60W30/19 ,  B60W2050/0026 ,  B60W2510/104 ,  B60W2520/10 ,  B60W2540/00 ,  B60W2540/10 ,  B60W2710/0677 ,  B60W2710/086 ,  Y02T10/56 ,  Y02T10/6252 ,  Y02T10/6286 ,  Y02T10/84 ,  Y10S903/902

Abstract: A torque-generating system includes one or more torque-generating devices, a transmission having an output member, and a controller. The controller executes a method to control an operation of the system when the output member is operating at zero output speed. The controller is programmed to determine a torque request level and an actual speed of the output member, and an effective speed of the output member, as a calibrated non-zero value, using the torque request level when the determined actual speed is zero. The controller calculates an effective power of the powertrain using the effective speed and torque request level. A control action is executed with respect to the powertrain using the calculated effective power, including transmitting powertrain control signals to the torque-generating device(s) to select an appropriate powertrain operating mode.

公开(公告)号：US20170136916A1

公开(公告)日：2017-05-18

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.