Gm Global Technolgoy Operations, Inc.

Joseph D Hillegass

Paul G Otanez

Aubrey Walter Downs, Jr

Jason C Jousma

Jacob M Knueven

Abdoulaye T Diallo

A method detects unintended acceleration of a motor vehicle during a closed-loop speed control mode by determining external forces on the vehicle via a controller, and then calculating a desired acceleration using a measured vehicle speed and the external forces. The method includes determining an actual acceleration of the vehicle, including filtering a speed signal as a first actual acceleration value and/or measuring a second actual acceleration value using an inertial measurement unit (IMU). During the speed control mode, the method includes calculating an acceleration delta value as a difference between the desired acceleration and the actual acceleration, and then using the acceleration delta value to detect the unintended acceleration during the speed control mode. A powertrain system for the motor vehicle, e.g., an electric vehicle, includes the controller and one or more torque generating devices coupled to road wheels of the vehicle.

Growing community of inventors

Waterford Township, MI, United States of America

Joseph D Hillegass