Patent ID: 9616756
Date: 2017-04-11
CPC Classifications: B60L,B60T,F02D,Y10S

Claim:
1. A retarder brake system of a vehicle combination including an agricultural tractor and an electrically driven trailer, comprising: a drive train with a combustion engine; a vehicle transmission coupled to the engine; a mechanical drive axle of the agricultural tractor coupled to a first gear output of the transmission; a first electrical motor generator unit coupled to a second gear output; and an electrical drive axle of the trailer operably driven by a second electrical motor generator unit; wherein, the two electrical motor generator units are electrically coupled to one another via a direct current link; wherein, in a retarder operation, the second electrical motor generator unit is operated by a generator, and the first electrical motor generator unit is operated with a motor, where at least a portion of a gross retarder output requested on the electrical drive axle is dissipatively destroyed as a power loss within the drive train.