Electrical eddy current retarder is an important assistant continuous brakingdevice, which is self-existent to main braking system. It is indispensable to the commercial vehicle running on the mountain road. Electricaleddy current retarder can take on 50-90 percent braking work, which cool the wheel clutch greatly, thereby, electrical eddy current retarder can keep wheel braking systemin order to work.. Beside, using electrical eddy current brake also can make the vehiclerun more smoothly and decrease the noise effectively while braking. At present, the produce of the eddy current retardet in china has just began,and has difference in quality than abroad, much work must be done to improve the quality. The domestic manufacture of the eddy current retarder starves for a testing systemwhich can test its performance.
So,this paper designed a test system who can inspect the eddy current retarder'sperformance. A series of flywheels are designed which can randomly combine andsimulate the running state of the automobiles whose approximately quality range from 2000 to 32000(kg),its simulation range is very widely,almost including from carrion to motor coach. The testing system can eva luate the eddy current retarder's performance at different vehicles， so it expand application range and heighten testing ciency.
The connection of car speed, excitation current, and rotor temperature and brake torsion can be eva luated on this test-bed. Besides, it can give a all-ground eva luate to the eddy current retarder's performance.. The testing system supplies effective data assist to the eddy current retarder's improving.
