Vehicle steering device
AssigneeHonda Motor Co., Ltd.
InventorToshikatsu Kuramochi
Life of this patent
Estimating the term…
Abstract
A mode setting unit of ECU controls a turning angle so as to be a turning angle in accordance with a steering angle detected by a steering angle sensor. When a vehicle is started, the mode setting unit controls an angle ratio so as to be an angle ratio that is equal to or smaller than a ratio of the turning angle to the steering angle (mechanical angle ratio) when a steering wheel and a turning mechanism are connected by a clutch mechanism.
Claims11
A vehicle steering device, comprising:
- a steering unit that performs an operation for steering a vehicle;
- a turning mechanism that turns a wheel of the vehicle while the turning mechanism is not coupled with the steering unit;
- a clutch mechanism that connects and disconnects the steering unit and the turning mechanism;
- a steering angle detection unit that detects a steering angle of the steering unit;
- and
- a turning angle control unit that controls a turning angle of the turning mechanism so as to be a turning angle in accordance with the steering angle detected by the steering angle detection unit,
- wherein, when the vehicle is started, the turning angle control unit controls an angle ratio which is a ratio of the turning angle to the steering angle, so that the angle ratio becomes a first value which is equal to or smaller than a ratio of the turning angle to the steering angle when the steering unit and the turning mechanism are connected by the clutch mechanism.
A vehicle steering device, comprising:
- a steering mechanism that performs an operation for steering a vehicle;
- a turning mechanism that turns a wheel of the vehicle while the turning mechanism is not coupled with the steering mechanism;
- a clutch mechanism that connects and disconnects the steering mechanism and the turning mechanism;
- a steering angle detector that detects a steering angle of the steering mechanism;
- and
- a turning angle controller that controls a turning angle of the turning mechanism so as to be a turning angle in accordance with the steering angle detected by the steering angle detector,
- wherein, when the vehicle is started, the turning angle controller controls an angle ratio which is a ratio of the turning angle to the steering angle, so that the angle ratio becomes a first value which is equal to or smaller than a ratio of the turning angle to the steering angle when the steering mechanism and the turning mechanism are connected by the clutch mechanism.
A method of controlling a vehicle steering device comprising a steering mechanism that performs an operation for steering a vehicle, a turning mechanism that turns a wheel of the vehicle while the turning mechanism is not coupled with the steering mechanism, a clutch mechanism that connects and disconnects the steering mechanism and the turning mechanism, a steering angle detector that detects a steering angle of the steering mechanism, and a turning angle controller that controls a turning angle of the turning mechanism so as to be a turning angle in accordance with the steering angle detected by the steering angle detector, the method comprising:
- detecting, by a computer, whether the vehicle is started, and if so,
- controlling, by the computer, an angle ratio which is a ratio of the turning angle to the steering angle, so that the angle ratio becomes a first value which is equal to or smaller than a ratio of the turning angle to the steering angle when the steering mechanism and the turning mechanism are connected by the clutch mechanism.
Dependencies are inferred from the claim text.