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Electromagnetic oil drain valve control method and control device

A control method and oil drain valve technology, applied in valve device, valve operation/release device, valve details, etc., can solve the problems of low control accuracy, unresponsive solenoid valve, large control current, etc., to improve control accuracy , the effect of reducing the average control current and improving the control accuracy and response speed

Active Publication Date: 2018-12-21
CHINA HANGFA SOUTH IND CO LTD
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AI Technical Summary

Problems solved by technology

[0003] The invention provides a control method and control device for an electromagnetic oil drain valve to solve the technical problems that the traditional PWM signal with a small duty cycle control signal solenoid valve cannot respond, the control accuracy is not high, and the control current is too large

Method used

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  • Electromagnetic oil drain valve control method and control device
  • Electromagnetic oil drain valve control method and control device
  • Electromagnetic oil drain valve control method and control device

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Embodiment Construction

[0040] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0041] refer to figure 2 , a preferred embodiment of the present invention provides a control method for an electromagnetic oil drain valve for controlling the amount of fuel, the control method comprising:

[0042] Step S100, collecting target temperature in real time;

[0043] The target temperature is collected by the temperature sensor, where the target temperature can be the temperature of one target position or the temperature of multiple target positions set according to the collection requirements.

[0044] Step S200, calculating the duty ratio of the control signal of the electromagnetic oil drain valve according to the target temperature collected in real time and the set temperatu...

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Abstract

The invention discloses a control method and device of an electromagnetic oil drain valve. The control method comprises the following steps: collecting target temperature in real time; calculating the duty ratio of an electromagnetic oil drain valve control signal according to the collected target temperature and a set temperature; and synthesizing the electromagnetic oil drain valve control signal according to the duty ratio, wherein the cycle of the electromagnetic oil drain valve control signal is T, the duty ratio is D, the electromagnetic oil drain valve control signal comprises a first control signal, a second control signal and a third control signal, the time length of the first control signal in a single cycle T is t1, the time length of the second control signal in the single cycle T is t2, the time length of the third control signal in the single cycle T is t3, and D is equal to (t1+t2) / T. According to the control method and the control device, the problem that the electromagnetic oil drain valve cannot respond due to the small duty ratio of the control signal can be prevented, the control precision and the response speed of the electromagnetic oil drain valve can be improved, and the average control current of the electromagnetic oil drain valve can be weakened, so that the control precision of a control system is improved.

Description

technical field [0001] The invention relates to the field of fluid control, in particular to a control method and a control device for an electromagnetic oil drain valve. Background technique [0002] In the field of automatic control, the response time and control accuracy of the solenoid valve often directly determine the performance of the control system. The response speed of the solenoid valve is fast and the control precision is high, so the control of the control system is more timely and precise. Traditional solenoid valve control signals such as figure 1 As shown, this kind of PWM control signal has defects such as the small duty cycle control signal solenoid valve cannot respond, the control accuracy is not high, and the control current is too large. Contents of the invention [0003] The invention provides an electromagnetic oil drain valve control method and a control device to solve the technical problems that the traditional PWM signal with a small duty cyc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K31/06
CPCF16K31/06
Inventor 熊勇军王日金王山峰
Owner CHINA HANGFA SOUTH IND CO LTD
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