Torque vectoring device and means for its control
AssigneeBorgWarner TorqTransfer Systems AB
InventorsLars Severinsson, Ola Nicklasson
Life of this patent
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Abstract
A torque vectoring device directs different torques at will to the two wheels of a drive axle on a road vehicle. It has two hydraulically controlled disc clutches, connected to a drive shaft, extending through the device, and in engaged condition intended for connecting the drive shaft to either of two gear sleeves, each in splines engagement with an eccentric tube eccentrically journaled in relation to the drive shaft, and a torque transmitting mechanism with a gear ratio of 1:1 between the eccentric tube and a differential case sleeve, coaxial with the drive shaft and forming part of a differential case of a differential on the drive axle, to which differential the torque vectoring device is connected.
Claims20
A torque vectoring device for directing different torques at will to the two wheels of a drive axle on a road vehicle, characterized by two hydraulically controlled disc clutches, connected to a drive shaft, extending through the device, and in engaged condition intended for connecting the drive shaft to either of two gear sleeves, each in splines engagement with an eccentric tube eccentrically journaled in relation to the drive shaft, and a torque transmitting mechanism with a gear ratio of 1:1 between the eccentric tube and a differential case sleeve, coaxial with the drive shaft and forming part of a differential case of a differential on the drive axle, to which differential the torque vectoring device is connected.
The method according to claim further involving:
- providing a plurality of control programs for regulating the driving dynamics of the vehicle, each control program being configured to individually analyze one or more of said input signals so as to determine whether a change in the driving dynamics is required and to generate a request for actuation of any of said two hydraulically controlled disc clutches of said torque vectoring device.
Dependencies are inferred from the claim text.