Brake system oil pressure fluctuation suppression device and equipment, brake master cylinder
A brake system and fluctuation suppression technology, which is applied in the direction of brake transmission, brakes, transportation and packaging, etc., can solve the problems of low reliability of the brake system and oil pressure fluctuations, so as to improve the driving experience and vehicle performance, and ensure Effectiveness, the effect of improving driving safety
Active Publication Date: 2020-10-09
佛山市一为制动技术有限公司
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Problems solved by technology
[0005] Based on this, it is necessary to provide a brake system oil pressure fluctuation suppression device and equipment, and a brake master cylinder to solve the problem of low reliability of the brake system caused by the substandard performance of the brake booster in the traditional technology. The problem of oil pressure fluctuations in the braking system can be solved, and the effectiveness of vehicle braking can be guaranteed when the booster motor fails, and the reliability of the braking system can be improved.
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[0060] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. A preferred embodiment of the invention is shown in the drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the present invention will be thorough and complete.
[0061] It should be noted that when an element is considered to be "connected" to another element, it may be directly connected to and integrally integrated with the other element, or there may be an intervening element at the same time. The terms "mounted", "one end", "the other end" and similar expressions are used herein for the purpose of description only.
[0062] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of or...
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The invention relates to a brake system oil pressure fluctuation restraining device and equipment and a brake master cylinder. The brake system oil pressure fluctuation suppression device obtains thedisplacement of a brake pedal so as to obtain a target oil pressure and controls the working states of a first switch valve and a motor in order that the oil pressure of an energy accumulator followsthe target oil pressure; then obtains second oil pressure so as to obtain a difference value between the second oil pressure and the target oil pressure and determine whether the current oil pressurefluctuation is within an allowable fluctuation range or not; if the second oil pressure is too high, controls a third switch valve to be opened in order to rapidly return the oil and quickly reduce the second oil pressure to the vicinity of the target oil pressure, and closes the third switch valve after stabilization; and if the second oil pressure is too low, controls the second switch valve tobe opened, and makes the energy accumulator perform oil pressure compensation on the brake master cylinder, so that the second oil pressure is stabilized in the vicinity of the target oil pressure, such that the oil pressure fluctuation of the brake system caused by the output torque fluctuation of the brake booster is inhibited. The brake system can generate expected target oil pressure and goodbrake pedal feeling, and the driving safety is improved.
Description
technical field [0001] The invention relates to the technical field of vehicle braking, in particular to a brake system oil pressure fluctuation suppressing device and equipment, and a brake master cylinder. Background technique [0002] The statements herein merely provide background information related to the present application and do not necessarily constitute prior art. [0003] At present, my country's new energy vehicles continue to grow rapidly. It is estimated that by 2030, new energy vehicles will account for more than 70%. my country's new energy vehicles have entered a stage of high-quality development. Creating more "safe" new energy vehicles has become a technological development. the key of. The safety of new energy vehicles depends on the heart of its braking system - the booster (Booster). Once it fails, driving safety will be greatly threatened. The existing new energy vehicle brake booster has two technical solutions, electric vacuum booster and motor boo...
Claims
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IPC IPC(8): B60T13/12B60T13/68B60T13/74
CPCB60T13/12B60T13/686B60T13/745
Inventor 刘金刚胡余良孟步敏傅兵肖培杰段大高
Owner 佛山市一为制动技术有限公司