Patent ID: 9616866
Date: 2017-04-11
CPC Classifications: B60T

Claim:
1. A vehicular brake hydraulic pressure control apparatus, comprising: a base body; a plurality of pressure-increasing valves; a plurality of pressure-reducing valves; a master-pressure sensor; a pair of reservoirs; a pair of cut valves; a pair of pumps; a pair of mechanical suction valves; a pair of caliper-pressure sensors; and a motor; wherein one side of the base body is a valve-mounting side on which the plurality of pressure-increasing valves, the plurality of pressure-reducing valves, the pair of cut valves, and the pair of caliper-pressure sensors are mounted, and another side of the base body opposite to the one side is a motor-mounting side on which the motor is mounted; the plurality of pressure-increasing valves are arranged in a line in a direction of center axes of the pumps, the plurality of pressure-reducing valves are arranged in a line in the direction of the center axes of the pumps, and the pair of cut valves and the pair of caliper-pressure sensors are arranged in a line in the direction of the center axes of the pumps; when a direction perpendicular to the direction of the center axes of the pumps and a rotational center axis of the motor is a vertical direction, an inlet port from a hydraulic pressure source and a plurality of outlet ports to be connected to a plurality of wheel brakes are arranged in an upper portion of the base body, and the pair of reservoirs are arranged in a lower portion of the base body, where the lower portion is located opposite to the upper portion with respect to the center axes of the pumps; the pair of pumps are respectively arranged between the inlet port and the reservoirs; the plurality of pressure-increasing valves are respectively arranged above the center axes of the pumps; the plurality of pressure-reducing valves are respectively arranged below the plurality of pressure-increasing valves; the pair of cut valves are respectively arranged between the pressure-increasing valves and the pressure-reducing valves, and are located nearer to a central portion of the base body than ones of the pressure-increasing valves and ones of the pressure-reducing valves located on edge sides of the base body; the pair of the mechanical suction valves are each arranged between ones of the pressure-reducing valves which are arrayed in the direction of the center axes of the pumps on an edge side of a vertical reference line passing through the rotational center axis, and the pair of mechanical suction valves respectively communicate with the pair of cut valves; and the master-pressure sensor is arranged on the vertical reference line above ones of the pressure-increasing valves located adjacent to each other, in the direction of the center axes of the pumps, in a central portion of the base body.