公开(公告)号：US20220258723A1

公开(公告)日：2022-08-18

申请号：US17175903

申请日：2021-02-15

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Yiran Hu ,  Ruixing Long ,  Kevin J. Storch ,  Robert C. Gibson ,  Bharath Pattipati ,  Paul G. Otanez

IPC: B60W20/20 ,  B60W20/30 ,  B60W30/18 ,  B60W30/19

Abstract: A motor vehicle includes first and second drive axles coupled to respective sets of road wheels, torque actuators inclusive of rotary electric machines configured to transmit respective output torques to the drive axles, and a main controller in communication with the torque actuators. The controller receives vehicle inputs indicative of a total longitudinal and lateral motion request. In response, the controller calculates a total longitudinal torque request and/or a total longitudinal speed request, a yaw rate request, and a lateral velocity request, then determines, using a cost optimization function, a torque vector for allocating the total longitudinal torque request and/or speed request, the yaw rate request, and the lateral velocity request to the drive axles within predetermined constraints. The controller also transmits a closed-loop control signal to each torque actuator or local controllers thereof to apply the torque vector via the drive axles.

公开(公告)号：US11192561B2

公开(公告)日：2021-12-07

申请号：US16418658

申请日：2019-05-21

Applicant: GM Global Technology Operations LLC

Inventor： Jun Chen ,  Ruixing Long ,  Yiran Hu

IPC: B60W50/00 ,  F02D41/26 ,  B60L58/12 ,  B60W10/26 ,  B60W10/30 ,  B60H1/00 ,  B60W10/06

Abstract: A method for controlling an actuator system of a motor vehicle includes utilizing a model predictive control (MPC) module with an MPC solver to determine optimal positions of one or more actuators of the actuator system. The method further includes receiving a plurality of actuator system parameters, and triggering the MPC solver to generate one or more control commands from plurality of actuator system parameters. The method further includes applying a cost function to reduce a steady-state tracking error in the one or more control commands from the MPC solver and applying the one or more control commands to alter positions of the one or more actuators, and applying a penalty term to the steady-state predictions of positions of the plurality of actuators to limit a difference between a steady-state prediction of the actuator system and a solution from the MPC solver.

公开(公告)号：US09605615B2

公开(公告)日：2017-03-28

申请号：US14675860

申请日：2015-04-01

Applicant: GM Global Technology Operations LLC

Inventor： Ruixing Long ,  Ning Jin

IPC: F02D41/04 ,  F02D41/00 ,  F02D41/26 ,  F02D41/14

CPC classification number: F02D41/045 ,  F02D11/105 ,  F02D41/0007 ,  F02D41/0077 ,  F02D41/1406 ,  F02D41/2422 ,  F02D41/26 ,  F02D2041/001 ,  F02D2041/0017 ,  F02D2041/1412 ,  F02D2041/1433 ,  F02D2250/18 ,  Y02T10/47

Abstract: A model predictive control (MPC) module performs multiple iterations to determine a current set of target values for an engine based on a torque request, a model of the engine, a tableau matrix, and a basic solution matrix. Each of the iterations includes: determining whether the basic solution matrix is not in standard form; when the basic solution matrix is not in standard form, identifying a first column of the tableau matrix based on a first entry position of the primal variable of the non-basic pair; when the basic solution matrix is in standard form and one or more primal variables of the basic solution matrix are negative, identifying the first column of the tableau matrix based on a second entry position of a dual variable of the basic pair; and selectively updating the basic solution matrix based on the first column of the tableau matrix.