A method of on-demand energy delivery to an active suspension system is disclosed. The suspension system includes an actuator body, a hydraulic pump, an electric motor, a plurality of sensors, an energy storage facility, and a controller. The method includes disposing an active suspension system in a vehicle between a wheel mount and a vehicle body, detecting a wheel event requiring control of the active suspension; and sourcing energy from the energy storage facility and delivering it to the electric motor in response to the wheel event.

Road vehicle suspension member for converting vibrations and/or mechanical stresses into electricity and a method for producing such a suspension member, the suspension member comprising at least one suspension element or at least one interface element, configured to participate in the fixing of at least one suspension element of the vehicle, and at least one continuous two-dimensional sheet, incorporated in or covering a surface of the suspension element or of the interface element, wherein the at least one two-dimensional sheet comprises at least one piezoelectric layer, comprising piezoelectric fibres collectively orientated in a common direction in such a way as to convert at least some of the vibrations and/or mechanical stresses undergone by the suspension element during operation of the vehicle into electricity, and an electrically conductive collector layer, covering the piezoelectric layer in such a way as to collect the electricity produced by the piezoelectric fibres.

Damping arrangement of an active chassis for an axle of a vehicle. A damping system cooperates with each wheel. Each of the damping systems has a damper having a double-acting hydraulic cylinder and a piston, a reversible hydraulic pump and an electric motor, and a hydraulic unit having a hydraulic reservoir and valves. The hydraulic pump and the hydraulic unit of the respective damping system cooperate with the hydraulic cylinder thereof such that, dependent upon the conveying direction of the hydraulic pump, a movement of the piston in a first actuation direction or in a second actuation direction can be provided. The electric motors of both damping systems are connected to and drivable by a common control device. A position sensor is associated with each electric motor to acquire the rotor position of the respective electric motor. A pressure sensor is associated with each hydraulic pump to acquire a pressure.

A transverse leaf spring assembly for a suspension of a vehicle according to the present disclosure includes: a frame; lower arms rotatably mounted on two sides of the frame, respectively; a bush mounted on the frame; and a leaf spring, which has two ends of the leaf spring in contact with the lower arms, respectively, includes a projection protruding from the leaf spring, and being fixed by the bush.

Provided are a method for manufacturing a sliding member, a method for manufacturing a shock absorber, a sliding member, a shock absorber, and a method for adjusting ride comfort capable of improving retention of lubricating oil between sliding members while increasing operability and capable of sustaining smooth sliding of the sliding members. A method for manufacturing a sliding member that performs a sliding operation in a presence of a lubricating oil, the method having a first polishing step of polishing a surface of the sliding member in a circumferential direction of the sliding member by using a polishing tape having a first whetstone to form a plurality of grooves disposed around the sliding member in the circumferential direction; and a second polishing step of polishing the sliding member after the first polishing step to form a surface cross section in a longitudinal direction of the sliding member in a plateau shape.

An improved suspension assembly that may be used as a new or retrofit to existing front and/or rear suspension systems. The assembly may include a multi-layered, press-fit wearband that is received by a modified suspension housing. The wearband is designed to ensure even lubrication, significantly enhancing durability and resistance to harsh conditions. The assembly further comprises a removeable head and retainer for ease of disassembly and reassembly.

A method of on-demand energy delivery to an active suspension system is disclosed. The suspension system includes an actuator body, a hydraulic pump, an electric motor, a plurality of sensors, an energy storage facility, and a controller. The method includes disposing an active suspension system in a vehicle between a wheel mount and a vehicle body, detecting a wheel event requiring control of the active suspension; and sourcing energy from the energy storage facility and delivering it to the electric motor in response to the wheel event.

A transverse leaf spring assembly for a suspension of a vehicle according to the present disclosure includes: a frame; lower arms rotatably mounted on two sides of the frame, respectively; a bush mounted on the frame; and a leaf spring, which has two ends of the leaf spring in contact with the lower arms, respectively, includes a projection protruding from the leaf spring, and being fixed by the bush.

A hydraulic port protection plug for insertion into a hydraulic port in a shock absorber assembly, where the hydraulic port protection plug comprises a cap portion with a disc-shaped end wall and a tubular body that extends from the cap portion to define an open-ended cavity. The open-ended cavity extends within the tubular body of the hydraulic port protection plug and is bounded at one end by the cap portion. A self-closing pressure relief opening extends through the cap portion and is arranged in fluid communication with the open-ended cavity. At least a portion of the cap portion is made of an elastic material that permits the self-closing pressure relief opening to open and close in response to pressure changes.

A strut mount cap is provided on an upper surface of a strut mount, and is configured to close a hole housing a fastening component for the strut mount and a shock absorber. The strut mount cap includes a cap body configured to close the hole, an annular water stop lip provided on an outer periphery of the cap body and in elastic contact with the upper surface of the strut mount to prevent water from entering the hole, a press-fit tube provided on a back side of the cap body and held on an inner peripheral surface of the hole by being press-fitted into the hole, and a check valve configured to open the hole when an internal pressure in the hole is equal to or higher than a preset pressure, and close the hole when the internal pressure is lower than the preset pressure.