| 摘要 |
PURPOSE:To make it possible to perform an accelerating turn while ABS control is carried out, by comparing the speeds of front and rear wheels, and by inhibiting the transmission of a signal from a rear wheel speed detecting section during non-operation of a rear wheel brake in order to perform the ABS control using the higher one of the speeds as a selected vehicle speed. CONSTITUTION:The wheel speeds of front and rear wheels are detected by sensors 1, 2, and are used for computation by computing circuits 3a, 3b so as to obtain approximated vehicle speeds. The approximated vehicle speeds for the front and rear wheels are compared with each other, and the higher one of them is selected by a selecting circuit 6, and signals indicating slips of the front and rear wheels are obtained from thus selected higher speed. Therefore, solenoids 13a, 13b are energized to carry out predetermined ABS control. During non-operation of a rear wheel brake, a gate circuit 14 is closed by a rear brake switch circuit 15 so as to cut off the output of the rear wheel speed computing circuit 3b. During accelerating-turn, the ABS control is carried out by use of the front wheel speed, and the accelerating turn may be performed.
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