Drive train for a vehicle and method of controlling a drive train

摘要: A drive train comprises an internal combustion engine, a clutchless gearbox, which can be shifted by means of electronic control unit and actuating devices, without mechanical synchronizing device, hydrostatic gearbox with hydraulic pump motor, are connected in closed circuit. The rotational speed the motor being controllable dependence on signal to adjusting device and/or motor. calculates setpoint input via accelerator pedal or as function shifting transmission stages possible devices. controls well devices for synchronization latter characteristic curve represents ratio loadfree state gearbox. For this purpose, method controlling train, maximum achievable synchronous