公开(公告)号：US11970154B2

公开(公告)日：2024-04-30

申请号：US17466869

申请日：2021-09-03

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Jie Yang ,  Robert L. Morris ,  Shaochun Ye ,  Vino Mathew

IPC: B60W30/02 ,  B60W30/18 ,  B60W40/10 ,  B60W40/101 ,  B60W50/02 ,  B60L15/10 ,  B60W40/103

CPC classification number: B60W30/02 ,  B60W30/18172 ,  B60W40/10 ,  B60W40/101 ,  B60W50/0205 ,  B60L15/10 ,  B60W40/103 ,  B60W2520/28

Abstract: A control system for a vehicle includes wheel slip control loop including a wheel slip controller configured to control wheel slip based on wheel speed measured at one or more wheels of the vehicle. A wheel flare control loop includes a wheel flare controller configured to control wheel flare based on transmission output speed at an output of a transmission of the vehicle. A controller is configured to select one of the wheel slip controller to control the wheel slip and the wheel flare controller to control the wheel flare during operation of the vehicle.

公开(公告)号：US09950706B1

公开(公告)日：2018-04-24

申请号：US15671989

申请日：2017-08-08

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Jie Yang ,  Robert L. Morris ,  Chia-Shang Liu ,  Yo Chan Son

IPC: B60W20/15 ,  B60K6/26

CPC classification number: B60W20/15 ,  B60K6/26 ,  B60W2710/083 ,  B60Y2200/92 ,  B60Y2300/22 ,  Y10S903/906

Abstract: A driveline system includes a drive axle coupled to a load, an electric machine, and a control system. The electric machine is responsive to a commanded torque, has a rotor shaft coupled to the axle, and produces an output torque that rotates the axle and load to produce driveline oscillation at a high resonant frequency. The control system generates the commanded torque using a nested control loop architecture in which an outer control loop operates at a sampling rate that is below a critical rate necessary for controlling the resonant frequency, and an inner control loop operates at a sampling rate that is above the critical rate. The inner loop determines a modified torque command and acceleration value in response to a commanded torque from the outer loop. The electric machine is thereafter controlled via the commanded torque.