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Comprehensive control method of electromagnetic 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 details, etc., can solve the problems that cannot meet the comprehensive control of solenoid valves, and achieve the goal of filling the lack of solenoid valve control system and high real-time Reliable solenoid valve group mutual logic control, shortening the effect of troubleshooting time and system recovery time

Active Publication Date: 2019-11-05
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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Embodiment Construction

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

[0026] Such as 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] Such as 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.

[00...

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Abstract

The invention relates to a comprehensive control method of an electromagnetic valve group. The comprehensive control method is characterized in that a communication card at a PC terminal is connectedto a control board, and then an independent control line is led from the control board to an electromagnetic valve wire harness on a valve body for comprehensive control. When an electromagnetic valveis controlled, the number of times to send the control current is judged by comparing the difference between the existing current and the target current and the current change rate, and the magnitudeof the current sent each time is determined according to the current change rate and the time change rate; and when multiple solenoid valves are controlled, each solenoid valve is controlled in a single thread independent manner in accordance with one electromagnetic valve control mode. The comprehensive control method solves the problem that the current electromagnetic valve control method cannot meet the demand of the electromagnetic valve comprehensive control.

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 Applications(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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