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.

The present invention discloses a dynamically adjustable suspension device including one or more springs having similar or different spring rates, where said one or more springs are arranged in a pre-defined configuration, and a dynamically adjustable damper. The dynamically adjustable damper, includes a rotatable knob coupled to the dynamically adjustable damper to change the damping coefficient dynamically in real-time, means to rotate the knob so as to adjust damping coefficient in real-time while the dynamically adjustable suspension device being used, means to identify compression of the one or more springs by sensing one or more positions of the springs, between a fully elongated state and a fully compressed state in real-time.

A pet mode door and suspension control system and method includes determining whether a door control action has occurred with respect to a door on the vehicle. When determined that the door control action has occurred, the system and method further includes determining whether a pet mode control action is needed. When determined that the pet mode control action is needed, a suspension control command is sent to suspension control system for raising and/or lowering at least one side of the vehicle and a door control command is sent to a power control unit for opening or closing the door in accord with the door control action.

A damping control device and a damping control method for controlling damping of a vehicle are provided. Damping control of the vehicle is performed by adaptively switching a damping mode while considering energy consumption (fuel economy, a consumption amount of a battery, and the like) according to a state of the vehicle such as a state of an interior of the vehicle, a driving state of the vehicle, and an ambient environment. That is, the state of an interior of the vehicle, the driving state of the vehicle, and the ambient environment are constantly monitored, and the damping mode is switched to a weak damping mode in the case where unnecessity of damping as strong as a current state is determined whereas the damping mode is switched to a strong damping mode in the case where necessity of stronger damping is determined.

A multi-mode air shock is disclosed herein. The air shock includes an air spring having a primary air chamber, and a damper having an insertion end to telescope within the primary air chamber and a coupler to couple with a portion of a vehicle. An adjuster housing is fixedly coupled to an end of the air spring opposite of the damper, the adjuster housing having a secondary air chamber in communication with the primary air chamber and a mounting structure to couple with a different portion of the vehicle. There is a bulkhead with a valve to open or close the fluid communication between the primary air chamber and the secondary air chamber. The air shock also includes a tertiary air chamber in fluid communication with the secondary air chamber but not in fluid communication with the primary air chamber except via the secondary air chamber.

A system configured to raise and lower a chassis of a vehicle. The system includes a damper with a first end connected to the chassis and a second end that is opposite to the first end. An actuation assembly includes a rotatable arm and a motor configured to rotate the rotatable arm, the rotatable arm is connected to both the second end of the damper and a control arm of the vehicle. Rotation of the rotatable arm by the motor moves the damper between a raised position to raise the chassis and a lowered position to lower the chassis.

A hydraulic suspension system controller connected with a hydraulic system of a vehicle. The controller includes a display, an indicator and buttons corresponding to functions of the controller. Each function is associated with the hydraulic system for raising and lowering solenoids connected to a hydraulic actuator to extend or contract the hydraulic actuator. A fail-safe module is connected to the controller to receive signals from a sensor array to monitor the hydraulic system.

A machine includes a chassis, a plurality of ground engaging elements supporting the chassis above a ground surface, a motor for driving at least one of the ground engaging elements and a plurality of assemblies supporting the chassis on the ground engaging elements. Each of the assemblies is configured to selectively raise and lower the chassis relative to the ground surface and includes a first attachment component for attaching the assembly to one of the ground engaging elements, a second attachment component for attaching the assembly to the chassis, an adjustment component for shifting the first attachment component between a plurality of operating positions relative to the second attachment component. A control system allows an operator to remotely control the adjustment components of each of the assemblies.

Methods and apparatus to control vehicle tilt are disclosed. A disclosed example apparatus includes a plurality of actuators of a vehicle, where each actuator is to be length adjustable, and a controller communicatively coupled to the actuators, where the controller to vary a height of at least one of the actuators to adjust a tilt of the vehicle to facilitate loading or removal of an object relative to the vehicle.

An assembly for supporting a vehicle chassis on a wheel of the vehicle includes a wheel attachment component for attaching the assembly to a wheel, a chassis attachment component for pivotably attaching the assembly to a chassis of the vehicle, and a suspension component operably interposed between the wheel attachment component and the chassis attachment component. A first adjustment element is coupled with the chassis attachment component and coupled with a first portion of the suspension component, and a second adjustment element is coupled with the chassis attachment component and coupled with the first portion of the suspension component. The first and second adjustment elements are configured to shift the first portion of the suspension component between a plurality of operating positions relative to the chassis attachment component. A single strut bar slidingly engages the wheel attachment component and is rigidly coupled with a second portion of the suspension component.