METHOD FOR TESTING THE BRAKES ON BRAKE TESTS FOR MOTOR VEHICLES AND DEVICE FOR CARRYING OUT THE METHOD

摘要

The invention proposes a method for testing the brake on brake testing stands (13) for motor vehicles, suitable for all-wheel drive vehicles with a plurality of permanently coupled axles. In a preliminary test with braked wheels (14, 15), the sum of the driving powers of both driving motors (21, 24) for the sets (19, 23) of rollers is reduced to a minimum by the oppositely driven wheels of one axle (12), the power less dissipated in the propeller shaft (17) falling to zero. The driving powers at both motors (21, 24) determined during this process are retained at the left-hand and right-hand wheel (14, 15) during the subsequent brake measurements. Brake measurement can be carried out without readjustment and without a disturbing influence on the other, coupled axle standing on the ground. A suitable device (10) with total-power control unit (26) is indicated.