Example: Oversteering Restraint Control
When vehicle rear wheels side out during cornering the actual yaw rate is higher than the target. BCM judges that oversteering (tendency for rear wheels to skid) has occurred and the following vehicle dynamics synthetic control is carried out.
BCM sends steering assist torque request to P/S control module based on oversteering level via CAN communication, and this makes it easier for excessive steering input to be decreased by providing counter-steering assist torque to steering system. Also, in i-AWD mode of 4WD model, BCM sends 4WD coupling torque request to 4WD control module via CAN communication. This reduces the rear wheel traction torque and reduces the influence of traction force at the rear wheels, and this inhibits oversteering.