Apparatus and method of controlling vehicle creep control under braking
AssigneeVisteon Global Technologies, Inc.
InventorsStephen De La Salle, Mathew Breton, Rongjun Zhang, Michael Larsen
Life of this patent
Estimating the term…
Abstract
The present invention provides in one embodiment a method for controlling vehicle creep control. Measurements are received from a brake pedal sensor, where the measurements are indicative of a brake pedal travel. A target creep speed value is derived based on the measurements of creep speed and the brake pedal travel. A request for wheel torque is derived based on the target creep speed. There is a determination of the difference between a measurement of vehicle creep speed and the target creep speed value. The request for wheel torque is adjusted, if the target creep speed is not equivalent to the vehicle creep speed.
Claims23
A method for controlling vehicle creep control, the method comprising:
- receiving measurements from a brake pedal sensor, wherein the measurements are indicative of a brake pedal travel;
- deriving a target creep speed value based on measurements of creep speed and the brake pedal travel;
- deriving a request for wheel torque based on the target creep speed value;
- determining if there is a difference between a measurement of vehicle creep speed and the target creep speed value;
- and
- adjusting the request for wheel torque, if the target creep speed is not equivalent to the vehicle creep speed.
A method for controlling vehicle creep control, the method comprising:
- receiving measurements from a brake pedal sensor, wherein the measurements are indicative of a brake pedal travel;
- deriving a target creep speed value based on the measurements of creep speed and the brake pedal travel;
- deriving a request for wheel power based on the target speed;
- determining if there is a difference between a vehicle creep speed and the target creep speed value;
- and
- adjusting the request for wheel power, if the target creep speed is not equivalent to the vehicle creep speed.
A system for controlling creep speed in a vehicle, the system comprising:
- a plurality of wheels in the vehicle operatively connected to a transmission;
- an engine operatively connected to the transmission;
- a controller operatively connected to the engine, wherein the controller receives measurements from a brake pedal of the vehicle and a speedometer of the vehicle, wherein the controller compares the measurements with a software program, and based on the measurements and the software program requests wheel torque be applied to the plurality of wheels.
An apparatus for controlling vehicle creep control, the apparatus comprising:
- means for receiving measurements from a brake pedal sensor, wherein the measurements are indicative of a brake pedal travel;
- means for deriving a target creep speed value based on the measurements of creep speed and the brake pedal travel;
- means for deriving a request for wheel torque based on the target speed;
- means for determining if there is a difference between a vehicle creep speed and the target creep speed value;
- and
- means for adjusting the request for wheel torque, if the target creep speed is not equivalent to the vehicle creep speed.
An apparatus for controlling vehicle creep, the apparatus comprising:
- a controller configured to receive measurements from a brake pedal, and an accelerator pedal of the vehicle, wherein the controller compares the measurements with a software program and based on the measurements a nd the software program requests wheel torque be applied to a plurality of wheels.
Dependencies are inferred from the claim text.