A comprehensive control method for solenoid valve group

A technology of comprehensive control and solenoid valve group, which is applied in the direction of transmission device control, valve operation/release device, valve device, etc., can solve the problems that the comprehensive control of solenoid valve cannot be satisfied, and achieve the purpose of filling the lack of solenoid valve control system and shortening the fault The effect of investigation time and system recovery time, high real-time reliable electromagnetic valve group mutual logic control

Active Publication Date: 2021-02-23
SHANGHAI W IBEDA HIGH TECH DEV +1
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Problems solved by technology

[0005] The purpose of the present invention is to provide a comprehensive control method of electromagnetic valve group, the comprehensive control method realizes the high real-time and reliable mutual logic control of electromagnetic valve group through the multi-thread independent control function of electromagnetic valve group, in order to solve the existing The current solenoid valve control method cannot meet the demand for comprehensive control of solenoid valves

Method used

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  • A comprehensive control method for solenoid valve group
  • A comprehensive control method for solenoid valve group

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Embodiment Construction

[0025] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0026] like figure 1 As shown, the present invention is connected to the control board through the communication card at the PC end, and then the independent control line is drawn from the control board to the solenoid valve harness on the valve body for comprehensive control.

[0027] like figure 2 , taking the cycle period of 100ms as an example, the control method of the present invention is described as follows:

[0028] 1. When no control command is received, the PC side performs a repeated waiting cycle with a cycle of 100ms. At this time, the internal operation of the computer occupies very low resources.

[0029] 2. When the PC receives the control command sent by the user within 100ms, it immediately exits the 100ms waiting loop and sends control current to the solenoid valve that the user requests to control.

[0030] Us...

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Abstract

The invention relates to a comprehensive control method of a solenoid valve group. The control method is connected to a control board through a communication card at the PC end, and then an independent control line is drawn from the control board to the solenoid valve harness on the valve body for comprehensive control. When a solenoid valve is controlled, by comparing the difference between the current current of the solenoid valve and the target current and the rate of change of the current, the number of times to send the control current is judged, and the size of the current sent each time is judged according to the rate of change of the current and the rate of time change ; When controlling multiple solenoid valves, perform single-thread independent control on each solenoid valve according to the control mode of one solenoid valve. The invention solves the problem that the current solenoid valve control mode cannot meet the demand for the comprehensive control of the solenoid valve.

Description

technical field [0001] The invention relates to a comprehensive control method of an electromagnetic valve group. Background technique [0002] The working conditions of the current 6-speed and above automatic transmissions are mainly through the comprehensive control of the solenoid valve group by the TCU to guide the oil circuit of the hydraulic system to act on the clutch plate to achieve different gear working conditions. Generally, more than 5 solenoid valves are combined for control. The valve group is assembled on the valve body, and most of the solenoid valves used are VFS (Variable Force solenoids, variable force solenoid valves). Multi-threaded approach. The solenoid valve is opened or closed by supplying electric current to the solenoid valve. [0003] At present, there are mainly the following control methods for the solenoid valve group: 1) Put the valve body with the solenoid valve in the automatic transmission, connect the TCU and the valve body with the sol...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K31/06F16H61/00
CPCF16H61/00F16H2061/0068F16K31/0675
Inventor 沈建强卢寅生严早卓
Owner SHANGHAI W IBEDA HIGH TECH DEV
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