A vehicle suspension damper is described. The vehicle suspension damper includes: a pilot valve assembly; a primary valve; and an adjuster, wherein the pilot valve assembly meters fluid to the primary valve, and the adjuster moves the primary valve.

A suspension device includes: a damping device that damps a force generated between a vehicle body and a wheel of a vehicle; a determination unit that determines whether the vehicle is jumping, using an acceleration of the vehicle in a front-rear direction, an acceleration of the vehicle in a left-right direction, and an acceleration of the vehicle in a vertical direction; and a damping force control unit that increases a damping force of the damping device so as to be greater than the damping force generated when the determination unit does not determine that the vehicle is jumping, when the determination unit determines that the vehicle is jumping.

A vehicle height adjusting apparatus according to one aspect includes: a vehicle height adjusting member that adjusts height of a seat of a saddle-type vehicle, using hydraulic pressure; an oil supplying portion that supplies oil to the vehicle height adjusting member, using a motor; and a control section that estimates a load applied to the vehicle height adjusting member, from a current supplied to the motor and a stroke correspondence quantity of the vehicle height adjusting member, and controls the oil supplying portion based on the load to adjust the height of the seat.

A suspension monitoring and adjustment system for an off-road vehicle includes a distance sensor arranged to measure shock displacement of a suspension of the vehicle. The system may include an output device configured to output shock displacement data generated by the distance sensor and a processor or programmable circuit operable to produce a visual representation of the shock displacement data output by the output device. The system may include a processor or programmable circuit operable to generate an adjustment signal based on shock displacement data generated by the distance sensor and a suspension adjuster arranged to adjust the suspension of the vehicle in response to the adjustment signal.

In a case where the coating film is confirmed to remain in a third step, at least one or more of conditions of the shot peening treatment including a propelling speed of the shot medium, a propelling time of the shot medium, a material of the shot medium, and an average particle diameter of the shot medium are changed and the second step and the third step are repeated until the coating film does not remain In a case where the coating film is not confirmed to remain in the third step, the condition of the shot peening treatment in the second step in which the coil spring is obtained with no remaining coating film is determined as the propelling condition for the shot medium.

A vehicle includes a forward frame portion, a rear frame portion, and a motion control system that movably interconnects the forward frame portion and the rear frame portion. A forward acceleration of the rear frame portion resulting from a driving force imparted by a wheel supported by the rear frame portion imparts a first force onto the motion control system that counters a second force imparted on the motion control system by an acceleration of a payload supported by the forward frame portion as a result of the forward acceleration.

A front suspension assembly for a vehicle having a connector adapted for connection to a front ground engaging member of the vehicle, a lower swing arm adapted for pivotal connection to a frame of the vehicle about a lower swing axis and being pivotally connected to the connector, an upper swing arm adapted for pivotal connection to the frame about an upper swing axis and being pivotally connected to the connector, the upper swing arm being above the lower swing arm, and a shock absorber assembly having a first end adapted for pivotal connection to the frame above the upper swing axis and a second end pivotally connected to the upper swing arm. The connector is pivotable relative to the lower and upper swing arms about a steering axis. A vehicle having the front suspension assembly is also disclosed.

The saddle-riding motor vehicle (1; 107; 207) comprises a rear driving wheel (5; 105; 205) and a front steered wheel (7; 107; 207). The front steered wheel (7; 107; 207X, 207Y) is connected to a rotatable arm (9; 109; 209X, 209Y) provided with a rotary motion about a steering axis (A-A). A wheel support (37; 137) is connected to the rotatable arm (9; 109; 209) with the interposition of a suspension (17; 117; 217X, 217Y) comprising a shock absorber (22; 122). The suspension (17; 117) comprises a Roberts four-bar linkage.

A spring-absorber system for a wheel suspension of a motor vehicle includes a suspension spring with a spring constant k.sub.T and an absorber filled with a fluid and mounted in parallel to the suspension spring. The spring-absorber system also includes at least two additional spring modules via which a total spring constant k.sub.G of the spring-absorber system can be varied.

A front wheel guide for a single-track motor vehicle has a telescopic fork, a fork bridge and a longitudinal control arm. The telescopic fork has two fork rods, which each have a lower fork tube and an upper fork tube which can be slid relative to the lower fork tube. The fork bridge extends in a transverse direction and interconnects the lower fork tubes of the fork rods. The longitudinal control arm, which is pivotably articulated to the vehicle, is connected to the fork bridge by way of a ball joint. The front wheel guide is characterized in that the longitudinal control arm is rotatably mounted on the ball joint by way of at least one rolling element bearing.