Research and development of Integrative Performance test bench of hydraulic retarder

The testing bench was developed to test Integrative Performance of hydraulic retarder and dynamic united adjustment was used in it. Simulated loading and oil temperature stability control of the test bench were studied. In order to achieve a joint dynamic load simulation, vehicle acceleration resistance was simulated by inertial flywheels and adjustable resistance was simulated by AC electrical dynamometer. Feedforward compensation fuzzy PID control algorithm was used in the oil temperature controller, the stability of oil temperature in retarder was controlled in experiment process. The test results indicated that the bench can achieve a reliable simulation of actual conditions, and temperature control accuracy meet the test requirements, the test bench is competent for performance tests of hydraulic retarder.