Vehicle speed control system and method
AssigneeChrysler Group LLC
InventorsZachary C Rogalski, Ivan Roman, Loren M Trotter, Jason Trombley
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Abstract
A system and method of operating a vehicle at a driver selected target speed. The system and method configured to identify a target speed based on a position of a gear shift selector and control engine torque and brake pressure to control the vehicle to operate at the target speed. The system and method is further provides manipulating the engine torque and brake pressure of the vehicle in response to a driver's throttle and brake commands to operate at a speed desired by the driver.
Claims20
A system of controlling vehicle speed, comprising:
- a gear shift selector operable by a user of the vehicle to be set in one of a plurality of positions;
- an electronic memory configured to store a plurality of vehicle target speeds that correspond to the plurality of positions of the gear shift selector, respectively;
- and
- a controller communicatively coupled to the electronic memory and configured to:
- receive a signal from the gear shift selector indicating a set position of the plurality of positions,
- identify the vehicle target speed of the plurality of target speeds that corresponds to the set position of the gear shift selector, and
- generate at least one of an engine torque request and a brake torque request to control the vehicle speed to equal the target speed.
A method of controlling vehicle speed, comprising:
- Storing, in an electronic memory, a plurality of vehicle target speeds that correspond to a plurality of respective positions of a gear shift selector of the vehicle;
- receiving by, an electronic controller, a signal indicating a positing of the gear shift selector;
- identifying, by the electronic controller, the vehicle target speed of the plurality of target speeds that corresponds to the set position of the gear shift selector;
- and
- generating, by the electronic controller, at least one of an engine torque request and a brake torque request to control the vehicle speed to equal the target speed.
The method of controlling vehicle speed according to claim 20, further comprising operating the vehicle at the target speed once the brake position returns to an original position.
Dependencies are inferred from the claim text.