Control method of flushing valve in wet dual-clutch transmission

A technology of wet dual clutch and control method, which is applied to clutches, mechanical equipment, etc., can solve the problems that the transmission cannot be automatically detected and executed, and is unsafe, so as to ensure the normal use effect and ensure the driving performance.

Active Publication Date: 2021-01-05
GREAT WALL MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This technology requires that the driver may need to manually operate. When the driver forgets, especially in difficult environmental conditions, such as low temperature, high altitude, climbing, ejection start, etc., the transmission may not be automatically detected and executed. , which may lead to an unsafe condition

Method used

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Experimental program
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Embodiment Construction

[0018] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0019] The present invention will be described in detail below in conjunction with examples.

[0020] This embodiment relates to a valve flushing control method for a wet dual-clutch transmission. The method is based on the control of the main control unit to realize the flushing operation of the electromagnetic valve in the transmission. In the solenoid valve control of the existing wet dual-clutch transmission, the types of solenoid valves mainly include the main pressure regulating solenoid valve, clutch solenoid valve and shift solenoid valve controlled by the main control unit. At the oil outlet of the oil pump, the hydraulic oil through the main pressure regulating valve can selectively flow into the clutch solenoid valve and the shift solenoid valve, while the shift solenoid valve in the existing wet ...

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Abstract

The invention relates to a valve washing control method of a wet-type double-clutch speed changer. The valve washing control method of the wet-type double-clutch speed changer comprises the followingsteps that a vehicle state detection step is carried out, specifically, current states of a vehicle are detected to obtain vehicle gear information, speed changer state information, and the current states of the vehicle are judged; the current states of the vehicle comprise a parking state, a flameout state and a clutch passive state, wherein the parking state, the flameout state and the clutch passive state serve as stable states; and a valve washing control step is carried out, specifically, under the stable states, a main control unit controls an oil pump to pump hydraulic oil to a solenoidvalve on the basis of preset impulse valve starting parameters, so that valve washing operation on the solenoid valve is carried out. According to the scheme, the valve washing operation on the solenoid valve in the speed changer can be realized under various states of the vehicle, so that the normal use effect of the solenoid valve in the speed changer is ensured, and the driving performance isguaranteed.

Description

technical field [0001] The invention relates to the technical field of vehicle transmission control, in particular to a flush valve control method for a wet dual-clutch transmission. Background technique [0002] Most transmission flushing valves adopt an active electronic control flushing strategy. The so-called flushing valve is to pump hydraulic oil to the solenoid valve connected to the oil pump by controlling the oil pump, and control the current of the solenoid valve through the vehicle main control unit. , also adjust the circulation pressure of hydraulic oil in the solenoid valve, so that the pressure oil circulates in each solenoid valve, and finally make the pollution particles in the solenoid valve flow with the hydraulic oil, so as to realize the cleaning operation of the solenoid valve. The solenoid valves in the existing wet dual-clutch transmission mainly include the main pressure regulating solenoid valve, the clutch solenoid valve and the shift solenoid valv...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16D48/06
CPCF16D48/06F16D2500/1107F16D2500/3067F16D2500/50251F16D2500/70605
Inventor 李旭鹏卫斯理·范德芬耿亚雷
Owner GREAT WALL MOTOR CO LTD
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