An electronically controller external damper reservoir assembly (eRESI) can be connected to a passive damper and/or substituted for an existing external reservoir to provide semi-active damping control. The eRESI includes a reservoir and a variable base valve assembly actuated by an actuator. A controller is in communication with the actuator and a sensor providing input signal indicative of vehicle movement and is programmed to generate a damping control signal to the actuator based on the input signal, to dynamically control the damping force outputted by a passive damper hydraulically connected to the eRESI. A P/T sensor can be installed to a gas chamber of a vehicle damper to generate a P/T signal indicative of the pressure and temperature of the gas. The controller is programmed to determine a damper position of the damper based on the P/T signal.

A continuously variable damper is disclosed. The damper includes an elongate outer tube and inner tube with a piston in the inner tube. The piston defines a rebound working chamber and compression working chamber. An active rebound valve is in fluid communication with the rebound working chamber through a rebound down tube, and an active compression valve is in fluid communication with the compression working chamber through a compression down tube. An intake compression valve is in fluid communication with the rebound working chamber through the rebound down tube, and an intake rebound valve is in fluid communication with the compression working chamber through the compression down tube. The opposite position of the intake valves balance the active rebound and compression valves to avoid asymmetric/bending loads on the inner tube in the damper.

A continuously variable damper is disclosed. The damper includes an elongate outer tube and inner tube with a piston in the inner tube. The piston defines a rebound working chamber and compression working chamber. An active rebound valve is in fluid communication with the rebound working chamber through a rebound down tube, and an active compression valve is in fluid communication with the compression working chamber through a compression down tube. An intake compression valve is in fluid communication with the rebound working chamber through the rebound down tube, and an intake rebound valve is in fluid communication with the compression working chamber through the compression down tube. The opposite position of the intake valves balance the active rebound and compression valves to avoid asymmetric/bending loads on the inner tube in the damper.

A modular active valve system having a reduced footprint for use in a smaller shock platform is disclosed. The modular active valve system includes a multi-stage valve having a first stage and at least a second stage, wherein at least the first stage includes a semi-active valve for electronic damping control.

A modular active valve system having a reduced footprint for use in a smaller shock platform is disclosed. The modular active valve system includes a multi-stage valve having a first stage and at least a second stage, wherein at least the first stage includes a semi-active valve for electronic damping control.

The present invention relates to a trailer dampening system for dampening during variable road conditions experienced during long hours of travel. Secondly, the trailer dampening system encompasses a universal design that will allow for easy installation and application to multiple trailers. The trailer dampening system is provided having a barrel assembly joined to the trailer, a cylinder rod assembly adjoined to the barrel assembly by a connection assembly wherein a connection assembly first opening is configured to receive a coupler end cap proximal end of the cylinder rod assembly. In some embodiments, there is a reservoir system having a main reservoir, a valve assembly, and at least one connection line. In some embodiments, the trailer dampening system further comprises an electrical control system connected to the valve assembly and having an input device configured to receive an input, a battery, a plurality of sensors, and a microcontroller.

The present invention relates to a trailer dampening system for dampening during variable road conditions experienced during long hours of travel. Secondly, the trailer dampening system encompasses a universal design that will allow for easy installation and application to multiple trailers. The trailer dampening system is provided having a barrel assembly joined to the trailer, a cylinder rod assembly adjoined to the barrel assembly by a connection assembly wherein a connection assembly first opening is configured to receive a coupler end cap proximal end of the cylinder rod assembly. In some embodiments, there is a reservoir system having a main reservoir, a valve assembly, and at least one connection line. In some embodiments, the trailer dampening system further comprises an electrical control system connected to the valve assembly and having an input device configured to receive an input, a battery, a plurality of sensors, and a microcontroller.

This invention pertains to hydraulic cylinders or shock absorbers, and a method of controlling the operation and flow of fluid within them. Specifically, this invention relates to use of a coil and valve mounted onto a shock shaft and mounting eyelet absorber or vehicle body) within a shaft and mounting eyelet of a damping assembly that utilizes electronically controlled inputs to regulate operational forces, essentially turning the shaft assembly into a solenoid.

This invention pertains to hydraulic cylinders or shock absorbers, and a method of controlling the operation and flow of fluid within them. Specifically, this invention relates to use of a coil and valve mounted onto a shock shaft and mounting eyelet absorber or vehicle body) within a shaft and mounting eyelet of a damping assembly that utilizes electronically controlled inputs to regulate operational forces, essentially turning the shaft assembly into a solenoid.

A vibration damper for a vehicle, includes at least one cylinder tube forming a fluid chamber, in which a piston assembly is axially and slidingly arranged and divides the cylinder tube into two working chambers, an upper and a lower working chamber, and wherein the piston assembly has an axially moveable main piston which is axially fixed to a piston rod that can move axially relative to the cylinder tube, and which has a piston valve influencing the fluid flow between the upper and lower working chambers, and wherein a further stroke-dependent piston is arranged on an axial extension of the piston rod in the direction of the cylinder base, which operates once a determined damper stroke is achieved. The stroke-dependent piston has a smaller diameter than the main piston and only operates when plunging into a smaller diameter of an inner casing surface. The stroke-dependent piston therefore has a stroke-dependent valve, and the stroke-dependent piston also has a frequency-dependent valve in addition to the stroke-dependent valve.