Lane centering fail-safe control using differential braking
AssigneeGM Global Technology Operations LLC
InventorsJin-Woo Lee, Nikolai K. Moshchuk, Shih-Ken Chen
Life of this patent
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Abstract
Method, system and non-transitory computer-readable medium for fail-safe performance of a lane centering system. An electrical power steering (EPS) system of a vehicle is monitored for a failure and operation of the lane centering system is switched to a differential braking controller to output differential braking commands to a differential breaking system upon determining that a failure of the EPS system has occurred, where the output braking commands direct the differential braking system to apply force a brake for a wheel of vehicle, such by the applied braking force the vehicle follows a desired path determined for a lane centering operation.
Claims20
A method for fail-safe performance of a lane centering system, the method comprising:
- using a computer processor,
- monitoring an electrical power steering system of a vehicle for a failure;
- and
- switching operation of the lane centering system to a differential braking controller to output differential braking commands to a differential breaking system, upon determining that a failure of the electrical power steering system has occurred,
- wherein the output braking commands direct the differential braking system to apply force a brake for a wheel of vehicle, such by the applied braking force the vehicle follows a desired path determined for a lane centering operation.
A system for fail-safe performance of a lane centering system, the system for fail-safe performance comprising:
- a differential braking controller coupled to a differential braking system;
- and
- a supervisory element coupled to the differential braking controller and a lane centering system, the supervisory element configured to monitor an electrical power steering system of a vehicle for a failure and, upon determining that a failure has occurred, switch an output of the lane centering system to an output of the differential braking controller,
- wherein the output of the differential braking controller provides a braking command to the differential braking system for an application of a braking force to a wheel of the vehicle, wherein by the applied braking force the vehicle follows a desired path determined for a lane centering operation.
A non-transitory computer-readable medium having stored thereon instructions, which when executed by a processor cause the processor to perform the method of:
- monitoring an electrical power steering system of a vehicle for a failure;
- and
- switching operation of the lane centering system to a differential braking controller, to output differential braking commands to a differential breaking system, upon determining that a failure of the electrical power steering system has occurred,
- wherein the output braking commands direct the differential braking system to apply force a brake for a wheel of vehicle, such by the applied braking force the vehicle follows a desired path determined for a lane centering operation.
Dependencies are inferred from the claim text.