CONTROL SYSTEM FOR AN ALL-WHEEL CLUTCH

摘要

A method and a corresponding controller for the four-wheel drive of a motor vehicle are described, consisting of a clutch (AK) disposed in the drive train between a primary axle and a secondary axle (VA, HA) of the four-wheel drive, by means of which the drive torque of a primary axle (KHA, HA) driven by an engine (VKM, SG) can be distributed to a secondary axle (KVA, VA), wherein the controller (S) has a signal connection to the clutch (AK) and to sensors recording the revolution rates of at least one wheel of the primary axle (HA) and one wheel of the secondary axle (VA) and the clutch (AK) is controlled by means of the controller (S) below a specified torque such that a significantly reduced transfer of torque to the secondary axle (VA) is carried out.

主权项

1. A method for controlling a clutch in the drive train between a primary axle and a second axle of a four-wheel drive, with which the drive torque of an engine is distributed directly to the primary axle and by means of a variable clutch or a distribution gearbox to the secondary axle, wherein distribution of the drive torque to the primary and the secondary axles is carried out taking into account the speed of the vehicle and the respective wheel revolution rates by setting the torque that can be transmitted through the clutch and the distribution gearbox to a provided value, wherein below a specified total drive torque the clutch or the distribution gearbox is set such that a significantly reduced transfer of torque to the secondary axle takes place.