| 摘要 |
PROBLEM TO BE SOLVED: To suppress an EPB from generating a brake force unintended by a driver based on a wrong lock command signal.SOLUTION: Based on a lock command signal, wheels are brought into a locked state by an EPB and thereafter, by performing BH auxiliary release control processing, the wheels are returned temporarily into a released state. Furthermore, a range MAX time to be determined normal is set based on the instruction pressure of a W/C pressure output by an ESC-ECU, and it is determined whether or not the lapse of time from start of BH auxiliary release control processing to determination of reaching about 0 point exceeds the range MAX time determined to be normal. When the determination is negative, it is determined that the lock command signal is output correctly, BH auxiliary lock 2 control processing after BH auxiliary release control processing is executed and the wheels are brought into the locked state again. When the determination is positive, it is determined that the lock command signal is output erroneously, and the wheels are left in the released state. |
