ELECTRONIC 4WD SYSTEM HAVING REINFORCED ABS COOPERATIVE CONTROL PERFORMANCE AND METHOD OF CONTROLLING SAME

摘要

The present invention relates to an electronic 4 WD system having reinforced ABS cooperative control performance, in which an ABS ACT signal by an ABS (Anti-Lock Brake System) controller and a 4 WD_OPEN signal by the ESC (Electronic Stability Control) controller are used. When the ABS ACT signal and the 4 WD_OPEN signal are recognized, it is determined that it is an ESC vehicle and a 4 WD mode is stopped. When only the ABS ACT signal is recognized, it is determined that it is an ABS vehicle and the intention of a user is determined on the basis of whether a brake pedal has been pressed down or an accelerator pedal has been released, and then a 4 WD mode is stopped.

主权项

1. A method of controlling an electronic 4 WD system having reinforced Anti-Lock Brake System (ABS) cooperative control performance, the method comprising:
(A) recognizing, by an electronic 4 WD system, an ABS ACT signal by an ABS controller and a 4 WD_OPEN signal by an ESC (Electronic Stability Control) controller; (B) determining that a driver intends to brake a vehicle and stopping a 4 WD mode, when the ABS ACT signal and the 4 WD_OPEN signal are both recognized; (C) determining whether the vehicle is braked by intention of the driver on the basis of a brake pedal signal, when only the ABS ACT signal is recognized; and (D) stopping the 4 WD mode upon determination that the vehicle is braked by intention of the driver when the brake pedal signal is transmitted, or maintaining the 4 WD mode upon determination that the vehicle is braked regardless of intention of the driver, when the brake pedal signal is not transmitted.