초록 ▼

A braking system employing an antilock device which has two brake actuating mechanisms responsive to input hydraulic pressure through the antilock device. Valves are provided in the control mechanism for a second brake actuating mechanism which provide hydraulic cylinders for controlling the brake m

A braking system employing an antilock device which has two brake actuating mechanisms responsive to input hydraulic pressure through the antilock device. Valves are provided in the control mechanism for a second brake actuating mechanism which provide hydraulic cylinders for controlling the brake mechanism. The hydraulic cylinder of such a valve is vented until the controlling hydraulic system reaches a minimum pressure level. This pressure level is determined to be above that of the residual pressure level of the antilock mechanism. In a first embodiment, direct hydraulic control is provided to the multiple brake actuating mechanisms. In the second preferred embodiment, the reaction force to braking of the first brake actuating mechanism controls the brake pressure through a second master cylinder to the second brake actuating mechanism.

대표청구항 ▼

A braking system for the wheel of a vehicle, comprising a brake having two brake calipers; a master cylinder; hydraulic coupling between said two brake calipers and said master cylinder; an antilock modulator assembly in said hydraulic coupling and having a hydraulic chamber and a first spring biase

A braking system for the wheel of a vehicle, comprising a brake having two brake calipers; a master cylinder; hydraulic coupling between said two brake calipers and said master cylinder; an antilock modulator assembly in said hydraulic coupling and having a hydraulic chamber and a first spring biased piston therein creating a residual pressure in said hydraulic coupling during modulation; a valve in said hydraulic coupling to one of said brake calipers, said valve having an output hydraulic chamber, a second spring biased valve piston therein and a relief port controlled by said second valve piston, said second spring biased valve piston closing said relief port at a hydraulic pressure in said hydraulic coupling above said residual pressure.