An autonomous vehicle control sub-system 105 includes first and second brake control modules 106 and 107 communicatively and electrically connected to one another, and a plurality of wheel-speed sensors 110 connected to the first brake control module 106. The first module is programmed to receive wheel-speed data from the wheel-speed sensors. The second module is programmed to process the wheel-speed data in the event of a failure in the first module. Both modules may be programmed to provide a signal to a brake actuator, the first module may be programmed to calculate at least one wheel-speed. Modulated electrical signals may be used to provide wheel-speed data between the modules, and the first module may be programmed to receive wheel-speed data from less than all of the sensors. The system may also comprise a powertrain control module to provide an average speed of the wheels to the second module via a wired connection. The second module may be connected to the first so that it may supply power to the first module via power source 126 in the event of a malfunction, which may in turn provide power to the sensors.
Failure tolerant vehicle speed
2016-03-30
Patent
Electronic Resource
English
IPC: | B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |