Abstract: A braking force distribution control apparatus for a vehicle has a lateral acceleration detecting unit detecting lateral acceleration of the vehicle, a longitudinal acceleration detecting unit detecting longitudinal acceleration of the vehicle, a vehicle speed detecting unit detecting a vehicle speed, and a braking control unit adapted to select. When preset conditions for brake operating time are satisfied, the braking control unit executes one of select-low control and independent braking control in accordance with the lateral acceleration, the longitudinal acceleration and the vehicle speed, the select-low control controlling braking forces of left and right wheels depending on a wheel on the side with a large slipping condition. The independent braking control system independently controls the braking force for each wheel in dependency on the slipping condition of each of the wheels.

Abstract: In a vehicle having an ABS control system, a braking control of a right and left rear wheels can be independently carried out when a lateral acceleration exceeds a lateral acceleration value set beforehand. When the ABS control is operated at one of the right and left rear wheels, the control system executes a stepwise pressure increase control which provides a stepwise pressure increase for the other rear wheel up to a braking pressure to be reached at a start of the control.

Abstract: A braking force distribution control apparatus for a vehicle has a lateral acceleration detecting unit detecting lateral acceleration of the vehicle, a longitudinal acceleration detecting unit detecting longitudinal acceleration of the vehicle, a vehicle speed detecting unit detecting a vehicle speed, and a braking control unit adapted to select. When preset conditions for brake operating time are satisfied, the braking control unit executes one of select-low control and independent braking control in accordance with the lateral acceleration, the longitudinal acceleration and the vehicle speed, the select-low control controlling braking forces of left and right wheels depending on a wheel on the side with a large slipping condition. The independent braking control system independently controls the braking force for each wheel in dependency on the slipping condition of each of the wheels.

Abstract: According to the present invention, there is provided an acrylic copolymer having a number average molecular weight of 1000-500,000, which comprises 1-90 % by weight of a structural unit represented by the following general formula ##STR1## (wherein R represents a hydrogen atom or a methyl group) and 99-10 % by weight of a structural unit-derived from an ethylenic unsaturated monomer, an acrylic copolymer composition and a paint containing the same.The coat obtained by applying the acrylic copolymer has excellent abrasion resistance, chemical resistance, flexibility, strength and the like.

Abstract: A motor vehicle is provided with a steering control system in which rear wheels are steered in response to steered angle of front wheels and vehicle speeds. The control system includes a first speed sensor for detecting a vehicle speed in association with a rotation of the front wheels and a second speed sensor for detecting a vehicle speed in association with a rotation of the rear wheels. The steering of the rear wheels is controlled by a steering control unit in dependency on a ratio of a vehicle speed signal from the first speed sensor with respect to a vehicle speed signal from the second speed sensor. Thus, the steering control unit transmits a signal for restricting steering of the rear wheels in a case where a condition in which the ratio of the vehicle speed signals from the first and second sensor is out of a predetermined range continues for a predetermined time.

Abstract: A rear-wheel steering system is provided in a four-wheel steering vehicle having at least a front-wheel steering angle sensor, a vehicle speed sensor, a control unit for carrying out rear-wheel steering control in dependency on signals detected by these sensors, and an electric motor controlled by the control unit to steer the rear wheels. This rear-wheel steering system is provided with detecting means for detecting front-wheel steering force, front-wheel lateral force or lateral acceleration of the vehicle. The control unit is provided with a front-wheel neutral point correction means for determining the zero point of the front-wheel steering angle which causes the rear-wheel steering angle to be zero with respect to a signal indicating that the front-wheel steering force, the front-wheel lateral force or the lateral acceleration of the vehicle thus detected by the detecting means is substantially zero.

Abstract: A motor vehicle has a crossmember for supporting a rear suspension system. The crossmember has a U-shaped cross section including a front plate and a rear plate. A part of the rear-wheel steering system is mounted on the rear plate of the crossmember, and another part of the rear-wheel steering system is mounted in the crossmember, a part of which is covered by underguards secured to the crossmember.

Abstract: A rear wheel steering device for automotive vehicles, of the type in which a double-link type of rear suspension having the rear wheels supported by the front and rear suspension arms so as to be movable in an upward and a downward directions. The rear wheel steering device includes supporting pins supporting the base end portions of at least one of the front and the rear pairs of arms to the suspension cross member of the automobile body and supporting shafts supporting the other pair of arms to the automobile body, with one of the end portions of the supporting shafts being rotatably mounted to the suspension cross member. The other end portions of the supporting shafts have eccentric shaft portions connected by a connecting rod so that the position of the eccentric shaft portions changes substantially in a range of 0.degree.-180.degree..