公开(公告)号：US20180111650A1

公开(公告)日：2018-04-26

申请号：US15334700

申请日：2016-10-26

Applicant: GM Global Technology Operations LLC

Inventor： Braden J. SWANTICK ,  Edward T. HEIL ,  Kevin IRWIN ,  Jeffrey A. MOSHER ,  Hualin TAN

IPC: B62D37/02 ,  B62D35/00

CPC classification number: B62D37/02 ,  B62D35/005 ,  B62D35/007 ,  B62D35/02

Abstract: An aerodynamic control system of a vehicle includes a utilization module that, based on a longitudinal force on a tire in a longitudinal direction and a latitudinal force on the tire in a latitudinal direction, determines a utilization force on the tire of the vehicle and a direction of the utilization force. A maximum module, based on the direction of the utilization force, determines a maximum force of the tire for maintaining traction between the tire and a road surface contacting the tire. A difference module determines a difference between the utilization force on the tire of the vehicle and the maximum force on the tire. An aerodynamic actuator control module selectively adjusts a position of an aerodynamic actuator of the vehicle based on the difference.

公开(公告)号：US20240059291A1

公开(公告)日：2024-02-22

申请号：US17890599

申请日：2022-08-18

Applicant: GM Global Technology Operations LLC

Inventor： Brian K. SAYLOR ,  Edward T. HEIL

IPC: B60W30/18 ,  B60W40/11

CPC classification number: B60W30/18109 ,  B60W40/11 ,  B60W2510/182

Abstract: A brake torque control system of a host vehicle includes a memory and a brake torque control module. The memory stores, for a braking event, multiple values indicative of whether an object has been detected forward of the host vehicle, a speed of the host vehicle, and an expected stopping distance or an expected stopping location of the host vehicle. The brake control module, based on the values, operates in an anti-pitch mode and reduces at least one of an amount of brake torque requested and a brake pressure applied for a last remaining portion of the braking event to reduce pitch of the host vehicle prior to coming to a complete stop and to not reduce the at least one of the amount of brake torque requested and the brake pressure applied for a portion of the braking event prior to the last remaining portion of the braking event.