An apparatus for adjusting a height of a vehicle including a vehicle height adjustment unit configured to adjust a height of the vehicle; a hydraulic pressure supply unit configured to supply a hydraulic pressure supplied to a caliper from a braking device for braking of the vehicle to the vehicle height adjustment unit; and a control unit configured to control a hydraulic pressure supplied to the vehicle height adjustment unit from the braking device, by controlling the hydraulic pressure supply unit depending on whether a predetermined vehicle height adjustment condition is satisfied.

The anti-dive control method for the automobile comprises: obtaining preset automobile operating condition parameters, and obtaining parameter values of the automobile operating condition parameters in real time; determining in real time whether the parameter values of the automobile operating condition parameters satisfy a preset first trigger condition or a preset second trigger condition; if the parameter values of the automobile operating condition parameters satisfy the preset first trigger condition, obtaining a preset first control strategy corresponding to the first trigger condition; implementing real-time control of the suspension damping force of the automobile according to the first control strategy; if the parameter values of the automobile operating condition parameters satisfy the preset second trigger condition, obtaining a preset second control strategy corresponding to the second trigger condition; and implementing real-time control of the suspension damping force of the automobile according to the second control strategy.

Vehicle body tilt, representing a difference between a vehicle body frame of reference and a wheel-base frame of reference, is determined by obtaining information from sensor assemblies for the vehicle body and for the wheel-base. Navigational solutions are generated for the sensor assemblies using motion sensor data from the assemblies and absolute navigational information. Correspondingly, vehicle body tilt is determined based at least in part on the vehicle body navigation solution and the wheel-base navigation solution.

A work vehicle includes a vehicle body, running gear to cause the vehicle body to travel, a height adjuster to change a height of a center of gravity of the vehicle body, and a controller configured or programmed to, in accordance with at least one of a turning radius and an angular velocity of the vehicle body during a turn, control the height adjuster to maintain or lower the height of the center of gravity.

A vehicle-height adjusting device includes: a vehicle-height adjusting unit that adjusts a vehicle height through extension and contraction thereof, which is disposed between each wheel and a vehicle body of a vehicle; a control unit that controls actuation of the vehicle-height adjusting unit; an obstacle detecting unit that detects an obstacle that is present within a predetermined range from the vehicle; a steering-angle detecting unit that detects an steering angle of the vehicle; and an identification unit that identifies a portion of the vehicle that overlaps the obstacle, based on a detection result by the obstacle detecting unit and a detection result by the steering-angle detecting unit, in which the control unit controls at least one of the vehicle-height adjusting unit, based on an identification result of the identification unit.

A vehicle-height control system includes: a fluid supply and discharge device including a compressor configured to suck fluid, and a tank configured to supply the fluid; an actuator-side passage connected to the fluid supply and discharge device; a vehicle-height control actuator provided for a wheel and connected to the actuator-side passage via a vehicle-height control valve; and a vehicle height controller configured to control a vehicle height for the wheel by controlling the fluid supply and discharge device and the vehicle-height control valve to control supply and discharge of the fluid in the vehicle-height control actuator. The vehicle height controller includes a start controller configured to open the vehicle-height control valve after establishing communication between the actuator-side passage and at least one of the tank and the compressor in a state in which the vehicle-height control valve is closed at a start of control of the vehicle height.

A vehicle-height control system includes: a fluid supply and discharge device including a compressor device and a tank storing fluid pressurized by the compressor device; a vehicle-height control actuator corresponding to a wheel and connected to the fluid supply and discharge device; a vehicle height controller that controls a vehicle height for the wheel by controlling the fluid supply and discharge device to control supply and discharge of fluid to and from the vehicle-height control actuator; a tank pressure controller that controls a tank pressure; and a fluid supply controller that supplies the fluid to a low pressure portion by controlling the fluid supply and discharge device at start and/or termination of at least one of control executed by the vehicle height controller and control executed by the tank pressure controller. The low pressure portion is at least a portion of the fluid supply and discharge device.

A vehicle height control apparatus includes an information acquisition device that acquires pressure data on a pressure inside an air tank storing compressed air and obstacle data on an obstacle in front of a vehicle, and a controller that calculates a target vehicle height based on the obstacle data, calculates a required distance required to reach the target vehicle height based on the pressure of the compressed air inside the air tank, and determines a vehicle height control timing, resolving a problem that the vehicle height is unnecessarily quickly controlled compared to the position of the obstacle, or is controlled after the vehicle passes through the obstacle to reduce the ride comfort.

An air supply device control system may include a sensor configured to detect a trailer to be provided in an eco-friendly commercial vehicle, an air supply device configured to compress and supply air, and a controller electrically connected to the air supply device and configured to control rotation speed of the air supply device to control the air of the air supply device, wherein the controller increases the rotation speed of the air supply device based on whether the trailer is provided in the eco-friendly commercial vehicle, which is detected by the sensor.

A vehicle suspension pre-load management system is disclosed. At least one suspension component, such as a motorcycle shock absorber, has an expandable chamber that with increased volume of a nearly incompressible fluid increases the suspensions pre-load. In one embodiment the system utilizes a controller, a pressure sensor, a pump, and a number of solenoids in a manifold block to allow a user to set a desired pre-load level. In another embodiment the controller monitors the pressure of the chamber and maintains a desired pre-load setting. In yet another embodiment, the controller identifies a hard braking event such that would cause a brake dive and increases the pre-load to counter act the dive.