Electric steering device
AssigneeMitsubishi Jidosha Kogyo Kabushiki Kaisha
InventorsHiroki YAMANAKA, Masayuki HASHIGUCHI
Life of this patent
Estimating the term…
Abstract
An electric steering device includes an electric actuator which generates a steering assist force for a steering mechanism of a vehicle, a control unit which controls the steering assist force generated from the electric actuator based on an operation of a steering wheel by a driver, an ignition signal detection unit which detects presence or absence of an ignition signal of the vehicle, and a speed acquisition unit which acquires a running speed of the vehicle. In a case that the ignition signal is not detected and the running speed is a predetermined speed or more, the control unit reduces an upper limit of the steering assist force generated from the electric actuator so as to be smaller than an upper limit in a case that the ignition signal is detected.
Claims10
An electric steering device comprising:
- an electric actuator which generates a steering assist force for a steering mechanism of a vehicle,
- a control unit which controls the steering assist force generated from the electric actuator based on a steering operation by a driver,
- an ignition signal detection unit which detects presence or absence of an ignition signal of the vehicle, and
- a speed acquisition unit which acquires a running speed of the vehicle,
- wherein, in a case that the ignition signal is not detected and the running speed is equal to or larger than a predetermined speed, the control unit reduces an upper limit of the steering assist force generated from the electric actuator so as to be smaller than an upper limit in a case that the ignition signal is detected.
Dependencies are inferred from the claim text.