Browse Publications Technical Papers 2004-01-2053
2004-05-04

Dana Torque Vectoring Differential Dynamic Trak™ 2004-01-2053

This paper presents a novel torque-vectoring (biasing) differential system Dynamic Trak that can be applied to both the inter-axle and the inter-wheel differential systems. The Dynamic Trak has three multi-plate clutches. The center clutch located inside the differential case provides a limited-slip or complete lock-up capability. The two outboard clutches positioned at either sides of the differential case selectively adjust the torque flow to the left or right shafts/wheels. An electronic control unit and a hydraulic circuit unit control the three clutches, realizing the active management of the torque to the two output shafts/wheels. The Dynamic Trak can provide maximum of 100% torque add or subtraction to the wheels, while maintaining the open differential feature. A virtual model representing a passenger car equipped with the Dynamic Trak has been developed. The simulation results show the handling and stability enhancements by the Dynamic Trak.

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