| 摘要 |
PURPOSE:To ease a driver's mind with the provision of an appropriate pedal vibration by configurating a device in such a way that, while an antiskid device is in operation, vibration which takes place at a brake pedal, can be set as required when a vehicle is running on either slippery roads or nonskid roads. CONSTITUTION:While an antiskid device is in operation, a force which counteracts against a spring (67) force, acts on a floating piston 65, because of difference in pressure between a hydraulic circuit 3 to a brake master cylinder and a hydraulic circuit 17 to wheel brake cylinders. In a similar manner, a force which counteracts against a spring (68) force, acts on a floating piston 66, because of difference in pressure between the hydraulic line 3 and the hydraulic pressure line 17. Accordingly, the piston 65 is allowed to reciprocate depending on the balance of force between a force due to difference in pressure within the hydraulic circuits 3 and 17, and the quantity of the spring (67) force. And the piston 66 reciprocates in a similar manner depending on the balance of force between a force due to the above said pressure difference and the quantity of the spring (68) force. Thus, the displacement in sliding of both the pistons 65 and 66 causes the change of volume to take place in the pressure line 3 allowing the specified amount of vibration to take place at a brake pedal 1, and this vibration can be set to be a given value.
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