Shift-by-wire control system including: actuator driven by electric signals generated in response to operator's manipulation to change speed range; main and auxiliary power source; ECU; and electric circuit connecting power source and ECU. ECU acquires vehicle travel speed information; determining whether main power supply is abnormal and travel speed is predetermined speed or lower; controlling electric circuit to stop auxiliary power supply until it is determined that main power supply is abnormal and travel speed is predetermined speed or lower; controlling electric circuit to supply power from auxiliary power source when it is determined that main power supply is abnormal and travel speed is predetermined speed or lower; determining whether auxiliary output voltage is predetermined voltage or lower; and controlling actuator to change speed range to parking range when it is determined that auxiliary output voltage is predetermined voltage or lower during auxiliary power supply.
SHIFT-BY-WIRE CONTROL SYSTEM
2021-05-20
Patent
Elektronische Ressource
Englisch
IPC: | B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / G07C TIME OR ATTENDANCE REGISTERS , Zeit- oder Anwesenheitskontrollgeräte |