Tenneco’s Monroe® RideRefine™ HCS damping technology

Tenneco (TEN) has expanded its portfolio of Monroe® RideRefine™ add-on technologies for passive dampers to include a new tunable end-stop technology that supports global automakers’ electrification and vehicle light-weighting strategies. The new Monroe RideRefine Hydraulic Compression Stop (HCS) improves ride comfort and body control by enabling a better trade-off between ride height and end-stroke compression damping. It significantly reduces impact forces transferred to the vehicle body structure near the end of a damper’s compression stroke. By controlling peak end-stop force, this technology helps manufacturers reduce the structural requirements of vehicles that typically carry heavier loads – including battery packs – and/or have limited ground clearance. It also is ideal for vehicles equipped with larger tires, such as Sport Utility (SUV) and Crossover models, which can generate higher end-stop loads.

The RideRefine HCS subassembly is one of several add-on modules that can be easily integrated with Tenneco’s standard piston valves and double-tube damper assembly processes. HCS works quickly and smoothly, significantly reduces bottoming load, and filters out noise and harshness experienced in high-impact road events that can occur when driving over curbs and potholes. Testing on a leading luxury SUV platform showed a reduction in bottoming load of up to 30% compared to dampers without HCS.

The technology increases damping force within the “HCS zone” near the end of the compression stroke and allows the reduction of damping force near the middle of the stroke, improving overall ride comfort and refinement. The HCS zone can be precisely tuned to the unique requirements of each vehicle model.

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