Failsafe steering device for steer-by-wire system
AssigneeHyundai Mobis Co., Ltd.
InventorJuhn-Sub Whang
Life of this patent
Estimating the term…
Abstract
A failsafe steering device for a steer-by-wire system includes a main Electronic Control Unit (ECU) that detects manipulating states of a main steering wheel and a rack mechanism via a plurality of sensors, actuates a reaction motor that provides the reaction force to the main steering wheel in relation to a driver's steering force, and controls a steering motor that executes the steering by actuating the rack mechanism. The failsafe steering device further includes a battery providing power to the steering motor, a relay restraining the power supply between the battery and the steering motor, a failsafe ECU that determines the malfunction state of the main ECU and controls the relay accordingly, and a steering shaft that transmits the rotational force of a supplement steering wheel to the rack mechanism.
Claims4
A failsafe steering device for a steer-by-wire system, the device comprising:
- a main Electronic Control Unit (ECU) that detects manipulating states of a main steering wheel and a rack mechanism via a plurality of sensors, actuates a reaction motor that provides the reaction force to said main steering wheel in relation to a driver's steering force, and controls a steering motor that executes the steering by actuating said rack mechanism;
- a battery providing power to said steering motor;
- a relay restraining the power supply between said battery and said steering motor;
- a failsafe ECU that determines the malfunction state of said main ECU and controls said relay accordingly;
- and
- a steering shaft that transmits the rotational force of a supplement steering wheel to said rack mechanism.
Dependencies are inferred from the claim text.