US 2019/0291780 A1 · ELECTRIC POWER STEERING DEVICE

Abstract

Provided is an electric power steering device including: a front-wheel steering mechanism, which is provided to front wheels of a vehicle, and includes a front-wheel steering motor as a drive source; and a rear-wheel steering mechanism, which is provided to rear wheels of the vehicle, and includes a rear-wheel steering motor as a drive source, wherein the rear-wheel steering motor is configured to be a double-inverter three-phase duplex motor, the double-inverter three-phase duplex motor including two three-phase windings and two inverters each configured to individually drive one of the two three-phase windings. Therefore, the electric power steering device is capable of, even when a failure has occurred in the steering motor of the rear-wheel steering mechanism, maintaining a function of the rear-wheel steering mechanism to secure behavior stability of the vehicle.

Claims13

Dependent claims

1-6. (canceled)

Dependencies are inferred from the claim text.

Facts

Application

16/317,915Filed 4 Oct 2016

Priority

JP 2016-14934929 Jul 2016

Published

26 Sep 2019

Term ends

Not estimatedThe source records don’t support an estimate.

Classification8 codes

B62D 7/14
For individually-pivoted wheels, e.g. on king-pins: the pivotal axes being situated in more than one plane transverse to the longitudinal centre…
B62D 5/0403
Electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear: characterised by constructional features, e.g.…
B62D 5/046
Characterised by control features of the drive means as such: controlling the motor
B62D 5/0484
Monitoring the steering system, e.g. failures: for reaction to failures, e.g. limp home

Electric power steering device

Life of this patent

Electric power steering device

Life of this patent

Abstract

Claims13