Variable torque ratio control system for 4-wheel drive vehicle uses symmetrical braking of front wheels for adjusting torque ratio between front and rear wheel axles

摘要

The control system uses a non-variable lock (1) with a given torque ratio between the front and rear wheel axles (2,3), with adjustment of the torque ratio between the front and rear wheels (4,5; 6,7) by symmetrical braking of the front wheels, with a corresponding increase in the torque output from the engine.