Abstract: A vehicle characteristic change system including characteristic information forming device for forming a characteristic information with which characteristics of an object vehicle are changed, information entry device for entering the characteristic information into the object vehicle, characteristic change device for changing the characteristics of the object vehicle in accordance with the characteristic information formed by the characteristic information forming means. Characteristics of a vehicle can be readily changed to meet a driver's taste, driving condition, driving circumstances and the like with compact system and low cost.

Abstract: An upper part of a strut is attached throught a rubber bushing to a body side member, and an upper spring sheet is attached to a lower surface of the rubber bushing. By this arrangement, in the loaded condition, the rubber bushing is compressed by the coil spring force so that comfort of ride and cornering stability are improved.

Abstract: A vehicle suspension system includes an arm member whose outer end is connected to a wheel and whose inner end is connected to the vehicle body by way of front and rear rubber bushings at positions spaced from each other in the longitudinal direction of the vehicle body so that the arm member can vertically rotate relative to the vehicle body. Each of the front and rear rubber bushings has an outer tubular member which is substantially cylindrical and extends in the longitudinal direction of the vehicle body, an inner tubular member which is received in the outer tubular member substantially coaxially therewith, and a rubber member interposed between the inner and outer tubular member. One of the inner and outer tubular members is connected to the vehicle body and the other is connected to the suspension arm.

Abstract: A suspension system for a vehicle includes a suspension arm. The outer end portion of the suspension arm is connected to a wheel support for rotatably supporting a wheel. The inner end portion of the suspension arm is bifurcated and has first and second branch arms spaced from each other in the longitudinal direction of the vehicle body. Each of the inner end portions of the first and second branch arms is supported by a slide member so that the inner end portion is slidable relative to the vehicle body in the longitudinal direction of the same. A coil spring is provided for at least one of the first and second branch arms and urges forward the suspension arm. A stopper defines the foremost position of the suspension arm which is urged forward by said coil spring.

Abstract: A suspension system for a vehicle includes a driving wheel support which supports for rotation a driving wheel of the vehicle, and a wheel guide which includes a plurality of arm members each of which is connected to the driving wheel support at its outer end and to the vehicle body at its inner end. The wheel guide restrains the toe angle of the driving wheel, and is arranged to cause the driving wheel to move in the direction of toe-in when a rearward load acts on the driving wheel and the driving wheel is displaced rearward. The wheel guide includes a resilient support member and a toe-out restraining member. The resilient support member resiliently supports the driving wheel support relative to the vehicle body and is arranged to contract when an external force acts thereon in a certain direction and to expand when an external force acts thereon in the reverse direction so that the driving wheel moves in the direction of toe-in when a forward driving force acts on the driving wheel.

Abstract: A suspension including a swing arm extending in a longitudinal direction of a vehicle and swingably connected with a vehicle body at a joint portion through a connecting member. The suspension comprising a joint structure between the joint portion of the swing arm and the connecting member for allowing a swingable movement of the swing arm in both vertical and horizontal directions relative to the vehicle body and a damping member provided in the connecting member for absorbing a vibration of the swing arm in the longitudinal direction.

Abstract: An automotive vehicle having a fluid-operated, four wheel steering system for steering not only the front wheel pair, but also the rear wheel pair as a function of the amount of turn of the front wheel pair with respect to the direction of straightforward run of the vehicle. The system makes use of a front cylinder operatively associated with a steering gear assembly and a rear cylinder operated by a fluid medium supplied from the front cylinder for steering the rear wheel pair. In order for the steering system to be responsive to the vehicle running speed thereby to control the amount of turn of the rear wheel pair appropriate for a particular range of vehicle running speed, a device is provided for accommodating a portion of the fluid medium to be supplied to the rear cylinder when the pressure of the fluid medium increases to a value higher than a predetermined pressure.

Abstract: The present invention is drawn to a structure for supporting suspension arms connected with a wheel supporting member on a vehicle body having a main frame and a side sill, which extend in the longitudinal direction of the vehicle body side by side. The structure includes a bracket which pivotally supports a swing arm on the main frame and the side sill, whereby load on the swing arm is distributed to the main frame and the side sill. And, the rigidity of the vehicle body is improved by the connection of the main frame to the side sill with the bracket.

Abstract: A double wishbone type suspension assembly of a vehicle is supported by a suspension supporting member through upper and lower control arms. The suspension supporting member comprises a cross member pivotally mounting the lower control arm and resiliently connected to a car body, and a supporting frame member pivotally mounting the upper control arm and resiliently connected to the car body, in particular to suspension tower of the car body. for resilient connection, a connecting mount which is prevented from being distorted laterally but is able to distort axially is provided between each member and the car body to be connected.

Abstract: An automobile sub-frame structure for supporting two double wishbone type rear suspensions on its respective sides includes a pair of juxtaposed first members extending in a direction widthwise of a vehicle body, a pair of opposed second members extending substantially vertically and each rigidly secured at an upper portion thereof to one end of each first member, and a pair of third members rigidly secured to lower portions of the second members and to a lower surface of a central portion of each first member. In the sub-frame structure, a plurality of truss structures are formed by the first, second and third members so that the sub-frame structure will be sufficiently rigid.

Abstract: In an automotive vehicle having front and rear wheel pairs and a steering wheel drivingly coupled with the front wheel pair for steering the vehicle with respect to the direction of run of the vehicle, said steering wheel being rotatable in any one of the opposite directions from a neutral position at which the vehicle can run straightforward, an automotive four wheel steering system is provided with a right-hand rear wheel turning structure for turning the right-hand rear wheel in a direction in which the toe-in takes place, a left-hand rear wheel turning structure for turning the left-hand rear wheel in a direction in which the toe-in takes place, a right-hand rear wheel toe-out stopper for mechanically preventing the right-hand rear wheel from turning in a direction in which the toe-out takes place, a left-hand rear wheel toe-out stopper for mechanically preventing the left-hand rear wheel from turning in a direction in which the toe-out takes place, and a rear wheel operating structure for operating eithe

Abstract: A trailing arm type rear-suspension system having a trailing arm which is connected to a wheel hub for supporting a rear wheel for rotation at one end and to the vehicle body for vertical pivotal movement at the other end by way of a resilient bushing is provided with a camber control link mechanism. The camber control link mechanism comprises first and second control links. The first control link is fixed to the trailing arm at its first end. The second control link is connected to a second end of the first control link for pivotal movement at one end, and to the vehicle body for pivotal movement at the other end.

Abstract: A vehicle rear-suspension system comprises a trailing arm one end of which is connected to the vehicle body by way of a resilient bushing for up-and-down pivotal movement, a wheel hub for supporting a rear wheel for rotation, a ball joint connecting the wheel hub to the trailing arm so as to permit pivotal movement of the wheel hub about a point relative to the trailing arm, and first and second resilient bushings which resiliently connect the wheel hub to the trailing arm, the ball joint and the first and second resilient bushings being arranged to cause the rear wheel to toe in against a force acting thereon. A first control link is fixed to said trailing arm at one end, and a second control link is connected for pivotal movement to the other end of the first control link at one end. The second control link is connected for pivotal movement to the vehicle body at the other end. The body side pivotal center of the second control link is offset from the pivotal axis of the trailing arm by a preset amount.

Abstract: A vehicle rear suspension mechanism capable of producing a toe-in displacement under a side force, a brake force, an engine brake force and an engine drive force to obtain a stabilized steering property. The mechanism includes a suspension member connected with a vehicle body, a wheel hub supporting a rear wheel for rotation about a rotating axis, a connecting device for connecting the wheel hub with the suspension member. The connecting device includes a ball joint connecting the wheel hub to the suspension member pivotably about the joint center. The ball joint is located in one of four quadrants defined in a rectangular coordinate system having its origin on the rotatable axis of the rear wheel. The device also includes a first resilient bushing located between the wheel hub and the suspension member in one of the three remaining unoccupied quadrants and a second resilient bushing located between the wheel hub and the suspension member in one of the two remaining unoccupied quadrants.

Abstract: A body side support member such as the semi trailing arm of a semi trailing type rear-suspension, the strut of a strut type rear-suspension or the like is connected to a wheel hub for a rear wheel by way of a resilient connecting means such as a pair of resilient bushings to permit the wheel hub to change its position with respect to the body side support member. An end of a stabilizer is connected to the wheel hub so that, when the rear wheel on the wheel hub bumps, the rear wheel is caused to toe in by the counterforce of the stabilizer produced upon bump thereof.

Abstract: A vehicle rear suspension mechanism capable of producing a toe-in displacement under a side force, a brake force, an engine brake force and an engine drive force to obtain a stabilized stearing property. The mechanism includes a suspension member connected with a vehicle body, a wheel hub supporting a rear wheel for rotation about a rotating axis, a connecting device for connecting the wheel hub with the suspension member. The connecting device includes a ball joint connecting the wheel hub to the suspension member pivotably about the joint center, a first resilient bush located between the wheel hub and the suspension member, and a second resilient bush located between the wheel hub and the suspension member. The ball joint is located rearwardly of and below the wheel center, whereas the first resilient member is rearwardly of and above the wheel center and the second resilient member forwardly of and above the wheel center.

Abstract: A body side support member such as the semi trailing arm of a semi trailing type rear-suspension system, the strut of a strut type rear-suspension system and the like is connected to a wheel hub for a rear tire by way of a ball joint and a pair of rubber bushings. The ball joint is positioned, as viewed from the left side of the vehicle body, in quadrant I, one of the rubber bushings is positioned in quadrant IV and the other rubber bushing is positioned in quadrant II or III on a coordinate plane having its origin on the center of the rear wheel, its abscissa on the horizontal line passing through the center of the rear wheel and its ordinate on the vertical line passing through the center of the rear wheel.

Abstract: A vehicle rear suspension mechanism capable of producing a toe-in displacement under a side force and an upward bump force, and possibly under other forces to obtain a stabilized stearing property. The mechanism includes a suspension member connected with a vehicle body, a wheel hub supporting a rear wheel for rotation about a rotating axis, a connecting device for connecting the wheel hub with the suspension member.

Abstract: A body side support member such as the semi trailing arm of a semi trailing type rear-suspension system, the strut of a strut type rear-suspension system and the like is connected to a wheel hub for a rear tire by way of a ball joint and a pair of rubber bushings. The ball joint is positioned, as viewed from the left side of the vehicle body, in quadrant II, one of the rubber bushings is positioned in quadrant IV and the other rubber bushing is positioned in quadrant I or III on a coordinate plane having its origin on the center of the rear wheel, its abscissa on the horizontal line passing through the center of the rear wheel and its ordinate on the vertical line passing through the center of the rear wheel.

Abstract: In a rear-suspension mechanism for vehicle, each wheel hub for a rear wheel is supported on a body side support member such as the semi trailing arm of a semi trailing type rear-suspension, the strut hub of a strut type rear-suspension or the like by way of a single ball joint and resilient bushings. The ball joint and the bushings permit displacement of the wheel hub about a point with respect to the body side support member. A stabilizer comprising a body portion extending in the transverse direction of the vehicle body and arm portions extending from opposite ends of the body portion substantially in the longitudinal direction of the vehicle body is supported on the vehicle body for rotation about the body portion. Each arm portion of the stabilizer is connected to one wheel hub at a junction point on the wheel hub.