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Clutch gearbox solenoid valve characteristic curve correction method and system

A characteristic curve, solenoid valve technology, applied in the direction of clutch, mechanical equipment, etc., can solve the problems of affecting gearbox control, inaccurate clutch pressure control, adverse effects on vehicle drivability, etc., to improve control accuracy and ensure driving performance. Effect

Active Publication Date: 2018-01-19
ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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  • Summary
  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The control accuracy of the solenoid valve is affected by factors such as temperature and hysteresis of the solenoid valve. Once the deviation of the control accuracy of the solenoid valve is too large, it will lead to inaccurate clutch pressure control, which will affect the

Method used

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  • Clutch gearbox solenoid valve characteristic curve correction method and system
  • Clutch gearbox solenoid valve characteristic curve correction method and system
  • Clutch gearbox solenoid valve characteristic curve correction method and system

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Embodiment Construction

[0048] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0049] Such as figure 1 As shown, an embodiment of the present invention provides a method for correcting a solenoid valve characteristic curve of a clutch gearbox on the one hand, and the method includes the following steps:

[0050] S100, obtaining the original value of the electromagnetic valve characteristic curve of the clutch pressure;

[0051] In this step, as a preference, the original value of the solenoid valve character...

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Abstract

The invention discloses a clutch gearbox solenoid valve characteristic curve correction method and system. The method comprises the steps of acquiring the solenoid valve hysteresis compensation valueof the clutch pressure by conducting compensation on solenoid valve hysteresis; conducting summation on the solenoid valve characteristic curve original value, the solenoid valve characteristic curvelearning compensation value and the solenoid valve hysteresis compensation value to obtain the final solenoid valve characteristic curve corrected value of the clutch pressure; and controlling the pressure of a solenoid valve and a clutch according to the corrected value. The influence of the hysteresis phenomenon on the clutch pressure is reduced. Accordingly, the control precision of the clutchpressure is improved, the control precision of a gearbox is improved, and the drivability of a whole car is guaranteed.

Description

technical field [0001] The invention relates to the technical field of vehicle control, in particular to a method and system for correcting a solenoid valve characteristic curve of a clutch gearbox. Background technique [0002] Dual-clutch automatic transmission is one of the most advanced transmissions in the world. A typical wet dual-clutch automatic transmission is mainly composed of oil pump, wet dual-clutch, electronic control system, hydraulic system, gears and other hardware. The wet dual-clutch automatic transmission establishes the pressure of the main oil circuit through the rotation of the oil pump, and then the electronic control system judges the current working status of the vehicle and the transmission, thereby controlling the gears in the hydraulic system, controlling the relevant solenoid valves and clutches, and realizing the transmission. The gear selection and clutch separation and combination can finally achieve good driving performance of the whole veh...

Claims

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Application Information

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IPC IPC(8): F16D48/02
Inventor 王烨张友皇徐瑞雪马培义朱成王祺明
Owner ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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