| 摘要 |
PROBLEM TO BE SOLVED: To perform a suitable brake fluid pressure control by obtaining the value of an estimated lateral acceleration which is not largely different from true lateral acceleration. SOLUTION: The brake fluid pressure control device is equipped with a temporary lateral acceleration calculation part 21b calculating the temporary lateral acceleration from the wheel speed, a brake fluid pressure estimation part 21d estimating the brake fluid pressure of respective coaxial right and left wheels, a subtracted amount acquisition part 21e acquiring the subtracted amount for correcting of the estimated lateral acceleration from the brake fluid pressure whose pressure is smaller one among the estimated brake fluid pressure, an estimated lateral acceleration calculation part 21f calculating the estimated lateral acceleration by subtracting the subtracted amount from the calculated temporary lateral acceleration, and a brake control part performing the brake control of the wheel brake from the calculated estimated lateral acceleration. The estimated lateral acceleration calculation part 21f calculates the estimated lateral acceleration by further subtracting the subtracted amount from the previous estimated lateral acceleration during brake control. COPYRIGHT: (C)2007,JPO&INPIT
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