Parameter adjusting method of high-speed switch valve

A high-speed on-off valve, parameter adjustment technology, applied in electrical digital data processing, control valve and air release valve, special data processing applications, etc. Rapidity, increasing the range of effective duty cycle, optimizing parameter selection and the effect of the calculation process

Pending Publication Date: 2022-02-11
JILIN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the normally open and normally closed phenomenon that is easy to occur in the existing high-speed switch valve design method, and the effective duty ratio range is too small. Based on these purposes, a parameter adjustment method for high-speed switch valves is provided.

Method used

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  • Parameter adjusting method of high-speed switch valve
  • Parameter adjusting method of high-speed switch valve
  • Parameter adjusting method of high-speed switch valve

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Embodiment Construction

[0040] The present invention is described in detail below in conjunction with accompanying drawing:

[0041] The invention discloses a parameter adjustment method of a high-speed switching valve, analyzes the internal composition and force analysis of the high-speed switching valve, fully considers the influence of electromagnetic force and hydraulic force, and at the same time, according to the formula satisfied by the high-speed switching valve, fully The influence of electromagnetic correlation coefficients such as PWM wave duty cycle, PWM wave frequency, and number of coil turns, and valve core correlation coefficients such as valve seat semi-cone angle, pressure difference, and ball diameter on valve core displacement are considered. The basic principle of this method is based on the fact that the position of the spool is determined by the intersection point of the electromagnetic force and the hydraulic power curve, so the position of the intersection point can be control...

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Abstract

The invention provides a parameter adjusting method of a high-speed switch valve, and belongs to the field of electromagnetic valve design, aiming at solving the problems that the effective occupancy range of PWM waves of the high-speed switch valve in a hydraulic control unit of an existing automobile ESC is too narrow and a valve core is easy to be fully opened or fully closed. According to the method, through structural composition and stress analysis conditions of the high-speed switch valve and parameter adjustment and calculation, it is guaranteed that the high-speed switch valve model is not fully opened or fully closed, and meanwhile it is guaranteed that the effective duty ratio range is widened as much as possible. According to the method, basic function requirements of the high-speed switch valve are met, meanwhile, the possibility that the high-speed switch valve goes wrong can be reduced, the effective duty ratio range of the high-speed switch valve is widened, and the actual engineering requirements of ESC are met.

Description

technical field [0001] The invention belongs to the field of solenoid valve design, in particular to the parameter adjustment of a high-speed switching valve used in a hydraulic actuator of an electronic stability control (ESC) of an automobile. Background technique [0002] Automotive Electronic Stability Control (ESC) is one of the important components of automotive active safety systems. ESC compares the actual state parameters of the vehicle with the vehicle parameters in the ideal state, and then uses the hydraulic control unit to adjust the brake wheel cylinder pressure of each wheel of the vehicle according to the comparison results to maintain the driving stability of the vehicle. Among them, the high-speed switching valve is an important component of the hydraulic control unit. The high-speed on-off valve controls the different spool openings of the high-speed on-off valve according to the different duty ratios of the high-frequency pulse width modulation (PWM) inp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/17B60T15/02G06F119/14
CPCG06F30/17B60T15/028G06F2119/14
Inventor 曾小华高皓铭赵子亮钱琦锋段朝胜杨建森白建凌宋大凤
Owner JILIN UNIV
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