Vehicular differential limiting torque control system

Claim 1

A differential limiting torque control system for a vehicle, comprising: differential limiting clutch means provided between left and right drive wheels of the vehicle for varying an actual differential limiting torque in response to a control signal, sensor means comprising first sensing means for sensing a throttle opening degree of the vehicle, second sensing means for sensing a left and right drive wheel speed difference, and third sensing means for sensing a drive wheel slip, and control means for producing said control signal to control said actual differential limiting torque in accordance with signals sent from said sensor means, said control means comprising first function generating means connected with said second sensing means for producing a first limiting torque signal representing a first differential limiting torque which increases as said left and right drive wheel speed difference increases, second function generating means connected with said first sensing means for producing a second limiting torque signal representing a second differential limiting torque which increases as said throttle opening degree increases, third function generating means connected with said third sensing means for producing a third limiting torque signal representing a third differential limiting torque which increases as said drive wheel slip increases, and summing means connected with said first, second and third function generating means for producing said control signal representing a final desired differential limiting torque which is equal to a remainder resulting from subtraction of said third differential limiting torque from a sum of said first and second differential limiting torques.