Patent ID: 7624832
Filing Date: 2009-12-01
Classification: B60K

Abstract:
1. A front and rear drive power distribution control device for a vehicle, comprising: clutch means for varying drive power distribution between front and rear drive shafts; a limited slip differential mechanism for limiting differential action between front and rear drive shafts; engaging torque calculating means for calculating engaging torque of the clutch means depending on parameters representing traveling state of the vehicle; limited differential torque estimating means for estimating limited differential torque generated in the limited slip differential mechanism; control means for controlling the clutch means based on a torque value that is corrected by subtracting the limited differential torque estimated by the limited differential torque estimating means from the engaging torque calculated by the engaging torque calculating means; and wherein the limited differential torque estimating means estimates limited differential torque generated by the limited slip differential mechanism based on torque inputted from an engine side.