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hydraulic brake system

A hydraulic brake and brake fluid technology, applied in the direction of brakes, brake transmissions, transportation and packaging, etc., can solve the problems of increased number of components and large energy loss

Inactive Publication Date: 2017-04-12
ADVICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] As a result, a large energy loss occurs when reducing the high pressure
[0008] In addition, since the hydraulic pump for storing brake fluid pressure in the accumulator and other hydraulic pumps provided in the anti-lock brake system must be provided separately, the number of parts increases

Method used

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no. 1 approach

[0035] by using figure 1 A hydraulic brake system 1 according to a first embodiment of the present invention will be described.

[0036] Such as figure 1 As shown in , a hydraulic brake system 1 is provided with a brake pedal 2, a master cylinder 3 (hereinafter referred to as M / C), wheel cylinders 4a-4d (hereinafter referred to as W / C), a brake actuator 5 , self-priming control part 6, reaction force generation part 7, high pressure generation part 8, and W / C pressure sensors 9a, 9b.

[0037] The brake pedal 2 pushes a master piston provided inside the M / C3 by being stepped on by the driver.

[0038] The operation amount of the brake pedal 2 is detected by an operation amount sensor such as a stroke sensor or a pedaling force sensor.

[0039] The operation amount of the brake pedal 2 is acquired by the brake ECU by transmitting a signal from the operation amount sensor to the brake ECU (electronic control part, not shown).

[0040] It should be noted that although the brak...

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Abstract

A hydraulic braking system has a brake actuator including hydraulic pumps that generate a W / C pressure by sucking and discharging a brake fluid from a master reservoir, and suck the brake fluid discharged from the W / C side for decompressing a W / C pressure during anti-lock braking. Further, open-when-self-priming valves that suck the brake fluid by themselves from the master reservoir in the hydraulic pumps are provided. Further, an accumulator is provided in a pipe connecting the hydraulic pumps and the W / C, and an accumulation to the accumulator is performed by the hydraulic pumps. Then, communication and cut-off of a pipe connected to the accumulator are controlled by lower limit indicating valves.

Description

technical field [0001] The present invention relates to a hydraulic braking system capable of performing cooperative control of a regenerative braking system. Background technique [0002] Conventionally, for example, in Japanese Patent Application Laid-Open Publication No. 2011-51400, there has been proposed a brake system that stores hydraulic pressure in an accumulator using brake fluid supplied from a hydraulic pump, and Higher wheel cylinder pressures are generated by using the hydraulic pressure stored in the accumulator to push the main piston during actuation. [0003] In this braking system, an anti-lock braking system provided between a master cylinder (hereinafter referred to as M / C) and wheel cylinders (hereinafter referred to as W / C) is provided. [0004] By increasing / decreasing wheel cylinder pressure using a hydraulic pump provided in this anti-lock braking system, wheel locking is prevented. [0005] However, as in the publication '400, when the main pisto...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60T13/16B60T8/176
CPCB60T8/4081B60T8/3275B60T8/348
Inventor ę‘å±±éš†
Owner ADVICS CO LTD