VEHICLE STEERING CONTROL DEVICE AND STEERING CONTROL METHOD Russian patent published in 2017 - IPC B62D5/00 B62D5/04 B62D6/00 B62D6/10 

FIELD: transportation.

SUBSTANCE: steering control device comprises a second controller 72 that performs the SBW mode using one electric motor when at least one of the first rotation controller 71, the first rotary electric motor M1 and the torque sensor 34 is faulty in a state in which the first controller 71 and the second rotation controller 72 perform the SBW mode using two electric motors. The first controller 71 performs the EPS mode using one electric motor when at least one of the second rotation controller 72 and the second rotary electric motor M2 is faulty in a state in which the first rotation controller 71 and the second rotation controller 72 perform the SBW mode using two electric motors.

EFFECT: fault-tolerant mode is activated with full use of the advantages of having several electric motors.

8 cl, 3 dwg