A saddle-type vehicle includes a link-type suspension system configured to make a vehicle support a driving wheel, and a motor configured to rotate the driving wheel. The driving wheel driven by the motor is a steered wheel. The link-type suspension system includes a swing arm having a pair of left and right arm portions that swingably supports the steered wheel. The motor is placed on one of left and right sides of a steering center axis in a width direction of the vehicle. A shock absorber is mounted on another arm portion of the swing arm, the another arm portion being placed on another of the left and right sides of the steering center axis in the width direction of the vehicle.

A high performance motorcycle having a frame, engine suspension, and rear wheel drive system that enables rider foot positioning close to the longitudinal centerline of the motorcycle and an overall aerodynamic profile. The engine suspension, centering and damping system allows for lateral movement while damping vibration and unwanted oscillations. The rear wheel drive includes a driven pulley axially disposed on a rear wheel axle, a drive pulley configured to receive motive output from the motorcycle engine, an idler pulley disposed above a line between the axes of rotation of the drive pulley and the rear wheel axle, and a belt or chain disposed around and operatively connecting the drive pulley, the driven pulley and the idler pulley, wherein the idler pulley and the drive pulley configured so as to provide substantially constant tension to a belt or chain over the range of travel of the rear suspension.

A suspension control device includes: a parameter storage unit that stores a parameter indicating a correspondence between behavior information indicating behavior of a vehicle and sensor data related to a suspension of the vehicle, the parameter determined in advance by machine learning; a vehicle behavior inference unit that receives the behavior information among communication data transmitted in the vehicle and infers the sensor data related to the suspension of the vehicle based on the behavior information and the parameter in the parameter storage unit; and a control value calculation unit that calculates a suspension control value for controlling the suspension based on the inferred sensor data.

A vehicle attitude control device includes a controller including a low-pass filter. The controller calculates a manipulated variable of the actuator that allows the roll of the vehicle to be suppressed. The controller processes the roll angle acceleration with the low-pass filter, integrates the roll angle acceleration in which a high-frequency component has been removed by the low-pass filter, and converts a roll angle velocity obtained by the integration, into the manipulated variable. The low-pass filter has a first vehicle speed-cutoff frequency characteristic in which a cutoff frequency becomes higher with increase in the vehicle speed, and the first vehicle speed-cutoff frequency characteristic is designed such that a peak frequency in roll vibration coincides with a local minimum roll frequency in wheelbase filtering, the roll vibration being amplified by a dead time and a phase delay in control by the controller.

A vehicle includes a body, an internal combustion engine, a traction battery, a front axle connecting two front wheels with at least one of the two front wheels drivingly coupled to the internal combustion engine, a rear axle connecting two rear wheels and carried by two leaf spring units, each leaf spring unit being pivotably connected at one end to the body and at another end to a connection arm pivotably connected to the body, wherein the rear axle includes two driveshafts connecting the rear wheels, and a drive unit supported by the rear axle to be self-supporting relative to the body. The drive unit includes an electric motor coupled to the traction battery and a differential mechanically coupled to the two driveshafts and the electric motor. The rear axle is mechanically uncoupled from the internal combustion engine.

An auto-leveling drive axle device for a wheel tractor, and leveling method. The device comprises a transmission device and a leveling device. The device of the present invention changes only a vertical position of a drive axle with respect to a wheel, and a wheel shaft distance and wheel center spacing are not changed, thus improving traveling stability of a vehicle.

A high performance motorcycle having a frame, engine suspension, and rear wheel drive system that enables rider foot positioning close to the longitudinal centerline of the motorcycle and an overall aerodynamic profile. The engine suspension, centering and damping system allows for lateral movement while damping vibration and unwanted oscillations. The rear wheel drive includes a driven pulley axially disposed on a rear wheel axle, a drive pulley configured to receive motive output from the motorcycle engine, an idler pulley disposed above a line between the axes of rotation of the drive pulley and the rear wheel axle, and a belt or chain disposed around and operatively connecting the drive pulley, the driven pulley and the idler pulley, wherein the idler pulley and the drive pulley configured so as to provide substantially constant tension to a belt or chain over the range of travel of the rear suspension.

This invention relates to an electric vehicle and more particularly, but not exclusively, to a solar vehicle of which a chassis is selectively adjustable relative to wheels of the vehicle. The electric vehicle includes a chassis, a suspension arrangement for connecting the chassis to wheels of the vehicle, and a solar panel securable relative to the chassis. The vehicle is characterized in that an orientation of the chassis relative to a plane defined by the wheels of the vehicle can be selectively adjusted by adjusting the suspension arrangement, in order for the angular orientation of the solar panel also to be adjusted.

A system for the recovery of parasitic energy loss in a vehicle includes a magnet and coil arrangement operatively and movable coupled with respect to one another, such that motion of the drive train of the vehicle with respect to the frame components causes relative motion therebetween to thereby induce an electrical current in the coil which may be used or stored in the vehicle.

There are provided a battery frame that is attached to a structural member on a floor back of an automobile body and accommodates a battery, and a rear suspension member assembly that is attached to rear floor side members and supports a rear suspension. The rear suspension member assembly is attached to the rear floor side members at least at right and left front-side attachment parts and right and left rear-side attachment parts. The rear suspension member assembly is attached to the battery frame at a first attachment part that is closer to a vehicle front than the right and left front-side attachment parts.