Method, system and electronic equipment for adaptively controlling main oil circuit pressures

A technology of adaptive control and main oil circuit, which is applied in the direction of mechanical equipment, transmission control, and components with teeth, etc., can solve the problems of increasing the risk of shifting clutch slippage and reducing transmission efficiency, so as to reduce the safety margin. The effect of improving the transmission efficiency

Active Publication Date: 2019-01-22
SHENGRUI TRANSMISSION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The critical value of the main oil circuit pressure control is the pressure to ensure that each lock-up clutch is just pressed. An increase in the main oil circuit pressure will increase the load on the transmission and reduce the transmission efficiency. A decrease in the main oil circuit pressure will increase the risk of shifting clutch slippage

Method used

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  • Method, system and electronic equipment for adaptively controlling main oil circuit pressures
  • Method, system and electronic equipment for adaptively controlling main oil circuit pressures
  • Method, system and electronic equipment for adaptively controlling main oil circuit pressures

Examples

Experimental program
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Effect test

Embodiment 1

[0061] figure 1 It is a flow chart of the main oil circuit pressure self-adaptive control method provided by Embodiment 1 of the present invention.

[0062] refer to figure 1 , the main oil circuit pressure adaptive control method includes:

[0063] Step S110, using the adaptive control algorithm to monitor the speed sensor of the transmission to obtain the clutch slip and the step size of the adaptive learning;

[0064] Step S120, calculating the increased pressure according to the clutch slip;

[0065] Step S130, calculating the adaptive control pressure according to the step size;

[0066] Step S140, obtaining the basic set pressure according to the critical safety pressure and the error-based preset safety pressure;

[0067] In step S150, the main oil circuit pressure is obtained according to the increased pressure, the adaptive control pressure and the basic set pressure.

[0068] Specifically, the main oil circuit pressure P LP As shown in formula (1), for the main...

Embodiment 2

[0099] Figure 5 It is a schematic diagram of the main oil circuit pressure adaptive control system provided by Embodiment 2 of the present invention.

[0100] An embodiment of the present invention provides an adaptive control system for main oil circuit pressure, which is used to implement the method for adaptive control of main oil circuit pressure in the above embodiments. refer to Figure 5 , the system includes the following units:

[0101] The monitoring unit 100 is used to monitor the speed sensor of the transmission using an adaptive control algorithm to obtain the clutch slip and the step size of the adaptive learning;

[0102] The first pressure calculation unit 200 is used to calculate the increased pressure according to the clutch slip;

[0103] The second pressure calculation unit 300 is used to calculate the adaptive control pressure according to the step size;

[0104] The third pressure calculation unit 400 is used to obtain the basic set pressure accordin...

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Abstract

The invention provides a method, a system and electronic equipment for adaptively controlling main oil circuit pressures, and relates to the technical field of automatic gearbox control. The method includes monitoring speed sensors of transmissions by the aid of adaptive control algorithms to obtain slip of clutches and step lengths of adaptive learning; computing boost pressures according to theslip of the clutches; computing adaptive control pressures according to the step lengths; acquiring basic set pressures according to critical safety pressures and preset safety pressures on the basisof errors; acquiring the main oil circuit pressures according to the boost pressures, the adaptive control pressures and the basic set pressures. The method, the system and the electronic equipment have the advantages that the main oil circuit pressures can be adaptively controlled by the aid of slip change conditions, which are computed by the speed sensors of the transmissions, of the clutches,accordingly, the safety coefficients of main oil circuit pressure control parameters can be lowered, the safety margin can be diminished, the transmission efficiency of the transmissions can be improved, and the transmissions further can safely run without sliding friction.

Description

technical field [0001] The invention relates to the technical field of automatic transmission control, in particular to a main oil circuit pressure self-adaptive control method, system and electronic equipment. Background technique [0002] For the hydraulic system of the hydraulic automatic transmission, the mechanical oil pump is used to provide the system oil pressure, that is, the main oil pressure of the transmission, and the pressure of the main oil circuit provides the pressing pressure for each clutch system. The mechanical oil pump is connected to the engine. The higher the engine speed, the higher the flow rate and the higher the pressure of the main oil circuit. However, generally the pressure will not increase with the increase of the speed due to the adjustment of the flow regulating valve. The critical value of the main oil circuit pressure control is the pressure to ensure that each lock-up clutch is just pressed. An increase in the main oil circuit pressure w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H61/4008F16H61/02
CPCF16H61/0265F16H61/4008
Inventor 郭伟程云江鲁曦刘强范维栋
Owner SHENGRUI TRANSMISSION
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