DRIVING ARRANGEMENT FOR MOTOR VEHICLE AND METHOD TO DETERMINE TORQUE TRANSMITTING CHARACTERISTIC FOR AN INTERMEDIATE SHAFT BRAKE IN A GEARBOX INCLUDED IN THE DRIVING ARRANGEMENT

摘要

The unit comprises an engine (1), a gearbox (9) with an intermediate axle (11) and axle brake (17) and a friction clutch (3) between the engine and gearbox. A torque sensor (19) detects input torque into the gearbox. The axle brake and clutch are regulated using a control unit (12) which is programmed so that when the gearbox is in the neutral position, the clutch is engaged and the axle brake is released, the gearbox torque loss is measured and stored, then the brake is applied with a pre-determined force and the increase in torque needed to provide constant torque is recorded and stored. This information is recorded and stored in the control unit, along with the time taken for the torque increase. The control unit is programmed to subsequently deactivate the brake and record and store the reduction in torque during brake deactivation and the time taken for the torque reduction to reach the torque loss value.