Drive system control method of motor vehicle with automatic shutdown and restart of the engine

摘要

The method is carried out in a vehicle, which has a drive set (10), a first clutch (12), a starter-generator (14), a second clutch (16), a drive shaft (18), a gear box (20) and a driven shaft (22), which is connected with the driven wheels (26) across a differential drive (24). A control system identifies the free rolling phase of the motor vehicle, with a switched off drive set (10). In these rolling phases, the starter-generator (14) connects with the rotating drive wheels (26), and permanently adjusts a step-up gear of the gear box (20) in such a manner, that a predetermined driven shaft RPM results and the generator produces current. An Independent claim is included for a motor vehicle with the above control system.