A proportional valve current acquisition method, system and electronic equipment
An acquisition method and acquisition system technology, applied in the direction of measuring current/voltage, only measuring current, measuring electrical variables, etc., can solve the problems of slow speed, low collection efficiency, and low accuracy, so as to improve speed, improve accuracy, reduce The effect of the overall numerical influence
Active Publication Date: 2021-11-09
HEFEI UNIV OF TECH
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Problems solved by technology
[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a proportional valve current acquisition method, system and electronic equipment, which are used to solve the problems of low acquisition efficiency, slow speed, and accuracy in the current acquisition process in the prior art. low problem
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[0064] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, in the case of no conflict, the following embodiments and features in the embodiments can be combined with each other.
[0065] It should be noted that the diagrams provided in the following embodiments are only schematically illustrating the basic ideas of the present invention, and only the components related to the present invention are shown in the diagrams rather than the number, shape and number of componen...
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The invention discloses a proportional valve current acquisition method, system and electronic equipment. The proportional valve current acquisition method includes: according to the amplitude of the voltage signal, and the corresponding times of adjacent rising edges and falling edges in the voltage signal, To calculate the area of the voltage signal at the corresponding time of the adjacent rising edge and the corresponding time of the falling edge, obtain the current proportional coefficient, and calculate the current value of multiple groups of solenoid valves according to the area of the voltage signal and the current proportional coefficient. The weighted average calculation is performed on the current values of the solenoid valves to obtain the weighted average current values of the solenoid valves. The invention greatly improves the speed of current signal collection while ensuring high precision.
Description
technical field [0001] The invention relates to the technical field of automation control, in particular to a proportional valve current acquisition method, system and electronic equipment. Background technique [0002] With the development of automotive electrical automation control, the number and types of solenoid valve applications are increasing, and the requirements for solenoid valve control accuracy are also getting higher and higher. Therefore, improving the precision of solenoid valve control is one of the important goals of hardware design. [0003] In the current process application, for the current information collection of the proportional valve driven by PWM (Pulse Width Modulation), the usual method is to use a low-pass filter to filter out other frequency components in the solenoid valve current to form a relatively stable DC current. However, in the filtering process, there is a contradiction between the linearity of the DC current and the conversion time ...
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IPC IPC(8): G01R19/00G01R19/165
CPCG01R19/0092G01R19/16509
Inventor 夏光李嘉诚纵华宇于星海王跃强许立平石鹏赵名卓汪韶杰孙保群
Owner HEFEI UNIV OF TECH