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Clutch solenoid valve clamping stagnation monitoring and protecting method and device in gear shifting process

A monitoring protection, clutch technology, applied in transmission control, components with teeth, belts/chains/gears, etc., to achieve the effect of solving the sticking phenomenon, preventing wear and tear, and quickly solving the problem of solenoid valve sticking

Active Publication Date: 2020-07-28
SHENGRUI TRANSMISSION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, it is generally to flush the solenoid valve before shifting gears to prevent sticking, or simply solve the problem of solenoid valve sticking. These solutions cannot accurately detect faults during and after shifting Clutch judgment, and take countermeasures that do not affect driving safety, and control the stuck solenoid valve at the same time

Method used

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  • Clutch solenoid valve clamping stagnation monitoring and protecting method and device in gear shifting process
  • Clutch solenoid valve clamping stagnation monitoring and protecting method and device in gear shifting process

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Embodiment Construction

[0042] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only for illustration and are not intended to limit the present invention.

[0043] The present invention provides a clutch solenoid valve stuck monitoring and protection method in the process of shifting gears, such as figure 1 shown, including the following steps:

[0044] S1: During the driving process of the car, the automatic transmission receives the shift signal from the controller and starts to switch from the current gear to the target gear. The shift process involves changing the power state of the solenoid valve in the hydraulic system to engage the clutch C1; the shift process After the middle oil filling phase, in the torque phase "I", the detector collects the turbine speed and the output shaft speed of the automa...

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Abstract

The invention discloses a clutch solenoid valve clamping stagnation monitoring and protecting method and device in the gear shifting process. According to the clutch solenoid valve clamping stagnationmonitoring and protecting method and device in the gear shifting process, through galloping detection in the gear shifting process, a clutch which possibly break down can be positioned in advance, whether a solenoid valve corresponding to the clutch is clamped and stagnated or not can be accurately judged in combination with clutch sliding friction detection, and meanwhile, gear limiting drivingis carried out according to a fault gear, driving safety can be guaranteed, clutch abrasion aggravation is prevented, impact-current-free scouring control is carried out on the clamped and stagnated solenoid valve, and the clamping stagnation phenomenon can be effectively avoided. Compared with an existing monitoring and protecting method, the strategy for positioning the fault clutch and judgingsolenoid valve clamping stagnation more accurately and the method for solving solenoid valve clamping stagnation more quickly are provided, the fault clutch in the gear shifting process can be detected and positioned, and meanwhile, the clamped and stagnated solenoid valve is effectively prevented and treated.

Description

technical field [0001] The invention relates to the technical field of automatic transmission clutch control, in particular to a method and device for monitoring and protecting clutch solenoid valve sticking during gear shifting. Background technique [0002] With the increasing maturity of automobile technology, people's requirements for automobile power, comfort, safety and economy are also increasing. The transmission is a key link in the car transmission system, and its effect directly affects the driving performance of the car. At present, automatic transmissions have become the mainstream of transmissions due to their excellent performance such as convenient operation and high-efficiency shifting. [0003] In an automatic transmission, the clutch is an important element to perform gear shifting. The opening and closing of the clutch is controlled by the hydraulic system, and the working conditions of the corresponding solenoid valves in the hydraulic system directly ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H61/12
CPCF16H61/12F16H2061/1208F16H2061/1224F16H2061/1232F16H2061/1264F16H2061/1276
Inventor 王书翰黄兴帅徐向阳刘艳芳董鹏庞明宏张彤昊周兆辉武天宇蔡甜媛
Owner SHENGRUI TRANSMISSION
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