Aisin Seiki Kabushiki Kaisha

Hisayasu Mase

Takehiko Fushimi

Takeshi Hatano

Tadaichi Matsumoto

Yutaka Iguchi

Katsuhiko Sato

Kohji Ariga

Kazutaka Tamura

Kazuhito Kadomae

A fixing member includes a case member provided with at least a substrate supporting member adjusted to support a substrate and integrally provided with a connector, a cap member adjusted to be fixed to the case member, at least an external force transmitting portion extending at the substrate supporting member between the substrate supporting member and the cap member and adjusted to transmit an external force subjected to the connector to the cap member while the case member has been fixed at the cap member.

Fixing member

A rear wheel steering angle control apparatus is provided with a rear wheel steering angle determining unit and a rear wheel steering mechanism so as to determine a steering angle ratio based upon vehicle speed and perform a rear wheel steering angle control. An alerting unit alerts that the output of the rear wheel steering mechanism is beyond a predetermined allowable range when an observing unit detects a control condition being abnormal and releases the alert when the output of the rear wheel steering mechanism is within the predetermined allowable range.

Rear wheel steering angle control apparatus

In a steering control apparatus for an automotive vehicle, there are provided a steering mechanism which is linked with a road wheel to be controlled, an actuator for actuating the steering mechanism, and a steering angle sensor which is arranged in the vicinity of the steering mechanism for detecting a steered position of the road wheel. The apparatus includes a first control circuit which is provided for setting a desired steering angle of the road wheel, and includes a second control circuit which is electrically connected to the first control circuit, and which controls a current to be fed into the actuator in response to a difference between the desired steering angle and an actual steering angle which is produced on the basis of the steered position detected by the steering angle sensor, to control a steering angle of the road wheel. The second control circuit is formed as one body with the steering angle sensor and arranged in the vicinity of the steering mechanism. The second control circuit is electrically connected to the actuator through a connector, without a wiring harness.

Steering control apparatus for an automotive vehicle

The amount of wiring required in a steering control system is reduced, and a power loss which occurs in the wiring of the power system is also reduced. The influences of electric noises upon the wiring between sensors and a control unit is reduced, thus improving the reliability. The control unit 9 connected with sensors and a servo unit SVU each include an independent computer 1, 8, and are connected to each other through a communication line. The control unit 9 is disposed adjacent to the sensors, while the servo unit SVU is disposed adjacent to an actuator. Information relating to a target steer angle and which is transmitted is chosen to be a variance T.DELTA. thereof, and on the receiving end, T.DELTA. is accumulated to obtain a target steer angle T.theta.. A steer angle deviation 0e is transmitted from SVU to the control unit 9. The presence or absence of any abnormality occurring is examined by checking the period of signal reception and signal values.

Growing community of inventors

Nisshin, Japan

Hisayasu Mase