Electronic 4wd system having reinforced abs cooperative control performance and method of controlling same
AssigneeHyundai Motor Company
InventorSung-Keun LIM
Life of this patent
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Abstract
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.
Claims4
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.
An electronic 4 WD system having reinforced Anti-Lock Brake System (ABS) cooperative control performance, wherein an ABS controller and an Electronic Stability Control (ESC) controller are connected by CAN communication, and
- the system includes an ABS sub-logic that determines that it is an ESC vehicle and stops a 4 WD mode when an ABS ACT signal by the ABS controller and a 4 WD_OPEN signal by the ESC controller are both recognized, and determines that it is an ABS SOLO vehicle when only the ABS ACT signal is recognized, and stops the 4 WD mode only when a signal indicating that a brake pedal has been pressed down or a signal indicating that an accelerator pedal has been released is detected.
Dependencies are inferred from the claim text.