| 摘要 |
An anti-lock braking control device includes a housing which defines cylindrical first chamber, two second chambers and a third chamber. The housing has two which are inlet ports connected to two master cylinders and two outlets ports which are connected to rear and front brakes. The third chamber is communicated with the inlet ports and is connected to two second chambers by two oil passages. The second chambers are aligned with one another and are connected to the first chamber. A rotor shaft with a driving disk is mounted rotatably in the first chamber. An oil regulator assembly is mounted in the third chamber for controlling the flow rate of hydraulic oil from the master cylinders to the second chambers. Each of a pair of reciprocating pump assemblies has a rod member which is driven by the driving disk to move reciprocally in a respective one of the second chambers. One end of the rod member extends into an oil chamber which is communicated with a respective one of the oil passages and one of the outlet ports in order to produce pressure waves to the rear and front brakes when the rotor shaft is driven by a power-driven motor. A pressure switch unit is connected to one of the second chambers and the motor in order to actuate the motor when the oil pressure is larger than a predetermined value.
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