Tenneco Automotive Operating Company Inc.

David R Blankenship

Karl C Kazmirski

Scott S Dunaway

Jeroen K Paenhuysen

Matthew L Roessle

Jeffrey T Gardner

Matthew R Schelosky

Zoren E Gaspar

Thomas Mallin

John McGahey

Timothy Bombrys

Rudi Schurmans

Mayur Rathan

The present disclosure relates to a damper system for a vehicle. The damper system may have an electrically adjustable hydraulic shock absorber including a rod guide assembly, a pressure tube, a reserve tube and an electromechanical valve. The electromechanical valve may be disposed in a valve cavity within the shock absorber. An integrated electronic system may be included which has a power drive electronics. The power drive electronics is electrically coupled to the electromechanical valve. The integrated electronic system is disposed along an axis parallel to a longitudinal axis of the pressure tube, and at a location radially outwardly of the pressure tube adjacent the rod guide assembly.

Damper with integrated electronics

A damper system and method for a vehicle includes a shock absorber and a damper module. The shock absorber includes a plurality of digital valves. The shock absorber is operable at one of multiple damping states based on a valve state of the digital valves. The damper module is coupled to each of the digital valves and controls each of the digital valves to a desired state based on a damper setting. The damper module determines a target damping state, where the target state is one of the multiple damping states. The damper module performs a switch operation to control the valve state of the plurality of digital valves to a given desired state when the target damping state is different from a present damping state.

Valve switching controls for adjustable damper

A damper system for a vehicle comprises an electrically adjustable hydraulic shock absorber and a damper control module. The damper control module is disposed with and coupled to with the shock absorber. The damper control module determines a target damping state of the shock absorber based on data received from a plurality of sensors. Furthermore, the damper control module controls the shock absorber, such that the shock absorber operates at the target damping state.

Autonomous control damper

A shock absorber may include a piston rod, a first rod guide member, a second rod guide member, and an electronically controlled valve assembly. The first rod guide member is concentrically disposed about the piston rod, and the second rod guide member is concentrically disposed about the piston rod and is adjacent the first rod guide member. The electronically controlled valve assembly may include a coil assembly and a valve guide assembly. The valve guide assembly may be disposed adjacent to the coil assembly and may be concentrically disposed about the second rod guide member. The valve guide assembly includes a spool and defines a valve inlet, a valve outlet, and a chamber. The spool is disposed within the chamber and controls the flow of fluid between the valve inlet and the valve outlet.

Rod guide assembly with multi-piece valve assembly

A damper system for a vehicle comprises an electrically adjustable hydraulic shock absorber and a printed circuit board assembly. The printed circuit board assembly includes power drive electronics, and is electrically coupled to the shock absorber. The printed circuit board assembly is disposed with the shock absorber.

A vehicle suspension assembly including a first end, a second end, and a hydraulic actuator. The hydraulic actuator is movable between a retracted position providing the vehicle suspension assembly with a first overall length, and an extended position providing the vehicle suspension assembly with a second overall length greater than the first overall length. The vehicle suspension assembly is configured to raise a vehicle when moved from the first overall length to the second overall length by the hydraulic actuator. The vehicle suspension assembly is configured to lower the vehicle when moved from the second overall length to the first overall length by the hydraulic actuator.

Suspension leveling system

A damper system for a vehicle includes a shock absorber and a damper module. The shock absorber includes a plurality of digital valves. The shock absorber is operable at one of multiple damping states based on a valve state of the digital valves. The damper module is coupled to each of the digital valves and controls each of the digital valves to a desired state based on a damper setting. The damper module determines a target damping state, where the target state is one of the multiple damping states. The damper module performs a switch operation to control the valve state of the plurality of digital valves to a given desired state when the target damping state is different from a present damping state.

A shock absorber has a housing with a piston rod assembly disposed therein. A first rod guide member is secured within a first portion of the housing so as to be concentrically disposed about at least a portion of the piston rod assembly. A second rod guide member is secured within the housing adjacent the first rod guide member so as to be concentrically disposed about at least another portion of the piston rod assembly. An electronically controlled valve assembly is disposed within the second rod guide member and is in communication with the first rod guide member.

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Canton, MI, United States of America

David R Blankenship