Hydraulic booster assembly device

Abstract

The invention relates to the technical field of automobile manufacturing, in particular to a hydraulic booster assembly device. An auxiliary force corresponding to braking operation amount can be generated by using hydraulic pressure supplied by an auxiliary high hydraulic source; the hydraulic booster assembly device is provided with a mechanical slide valve structure to effectively control the input amount of high hydraulic pressure; and therefore, a braking effect under a normal situation can be realized, a brake pedal feeling better than the feeling of an existing vacuum booster can also be realized, the braking response speed is high, the braking distance is shorter, the structure is compact, the volume is small, and the hydraulic booster assembly device is beneficial for part layoutof an engine compartment; through adoptions of two sealing valve ports, the sealing property is guaranteed, idle strokes L1 and L2 of a hydraulic booster are reduced, shorter braking stroke is obtained, and braking foot feeling is enhanced; the basic braking characteristics are not changed, the hydraulic booster assembly device can completely replace the vacuum booster and can be used for whole series automobile brake boosters.

Description

technical field [0001] The invention relates to the technical field of automobile manufacturing, in particular to a hydraulic booster assembly device. Background technique [0002] Since the 1990s, there has been growing interest in identifying and quantifying greenhouse gas emissions to understand their impact on the global atmosphere and to begin to better understand the sources and effects of different greenhouse gases. Automobiles are one of the industries with relatively large carbon emissions. There are carbon emissions in the process of production and use, and exhaust emissions are the main source of air pollution in large and medium-sized cities in China. [0003] With the increasingly serious global environmental problems, all countries in the world are paying attention to them, and are encouraging the research and development of various types of new energy vehicles to deal with increasingly serious environmental problems and complex energy problems. Among them, el...

AI Technical Summary

Problems solved by technology

However, the noise of the electric vacuum pump is relatively large when obtaining vacuum, which brings difficulties to the noise control of the vehicle; the volume of the electric vacuum pump is also relatively large, which also brings difficulties to the compact engine cavity layout; the cost of the electric vacuum pump is not low, which is very important for vehicle cost control also bring challenges

[0006] At the same time, the vacuum booster has the disadvantage of slow response speed; the maximum boost output pressure is relatively small, which mainly depends on the engine vacuum limit and the size of the vacuum booster

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