Hydraulic Retarder - Heavy Truck

Hydraulic Retarder
The hydraulic retarder is a hydraulic device that reduces the traveling speed of a vehicle. It is generally composed of the retarder body, control device, electronic control unit, and other components. In the retarder body structure, the rotor and stator jointly constitute a working chamber. When the hydraulic retarder is operating, the electronic control system controls the proportional valve to apply air pressure to the working fluid to fill the working chamber. 

Continuous downhill test

Test conclusion: The continuous downhill is stable and free of adverse phenomena. It fully meets the requirements for safe downhill use at the regulated speed of 30Km/h, and also meets the requirements for users' commonly used downhill speed.

The maximum downhill speed can be achieved at a constant speed of 55 km/m, with 40 km/h being the commonly used speed for road conditions. The remaining speed tests are limited by the road conditions of the vehicles ahead of the high speed, and the continuous test time is relatively short.