| 摘要 |
PROBLEM TO BE SOLVED: To enable brake operation at proper timing even when external force works on a vehicle by finding a car speed change of the self-vehicle from a car speed detection means at the time when a state of accelerator control input 0 continues for more than specified time anal extensively correcting a brake starting vehicle-to-vehicle distance at the time when it is found to be an accelerated state. SOLUTION: Arithmetic processing in accordance with a program, etc., is carried out on a CPU in a controller. It is judged that a front vehicle is detected by a detection signal of a vehicle-tovehicle distance detection means (S20). A brake operation flag is put ON, and judgement of accelerator control input O is made (S21, 22). Thereafter, duration time of the accelerator control input 0 is counted, and whether it is higher than a specific value or not is judged (S23-S27). Thereafter, it is judged whether car speed is in a accelerated state by external force shown by the specific value (S28). Consequently, brake timing is corrected and timing becomes faster. When an actual vehicle-to-vehicle distance is smaller than a corrected braking vehicle-to-vehicle distance, braking is performed, and rear-end collision is prevented.
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