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A Solenoid Valve Troubleshooting Method Based on Automatic Transmission Control Software

A fault handling method, automatic transmission technology, applied in the direction of transmission control, elements with teeth, belts/chains/gears, etc., to achieve the effect of avoiding unusable dangers

Active Publication Date: 2020-07-10
SHENGRUI TRANSMISSION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Due to the change of the mechanical design structure, this strategy is not applicable to the electronic shift mechanism, and the solenoid valve fault handling measures of the electronic shift control software are basically in a blank state

Method used

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  • A Solenoid Valve Troubleshooting Method Based on Automatic Transmission Control Software
  • A Solenoid Valve Troubleshooting Method Based on Automatic Transmission Control Software

Examples

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Embodiment Construction

[0025] In order to have a clearer understanding of the technical features, purpose and effects of the present invention, the specific implementation of the present invention is now described with reference to the accompanying drawings. In this example, the gear position of 8at is used as an example for illustration. Those skilled in the art should understand that, The following does not constitute a limitation to the protection scope of the present invention.

[0026] Examples such as figure 1 , figure 2 As shown, a solenoid valve fault handling method based on the automatic transmission control software includes the steps of judging the solenoid valve fault: the TCU monitors the operation status of the gearbox at all times, and when the solenoid valve fault occurs in the gearbox, the TCU reports the solenoid valve fault code at the same time; When the power supply terminal of the solenoid valve fails, the solenoid valve under the power supply terminal also fails. In short, ...

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Abstract

The invention discloses an electromagnetic valve fault handling method based on automatic transmission control software. The method includes the step of judging the fault of an electromagnetic valve,the step of judging the fault B1 and the fault Cx, the step of judging the fault gear _B1 and the fault gear _Cx, the step of judging the fault gear, the step of judging the available gear and the step of judging the gear priority. The operating state of a clutch is judged by monitoring the state of the electromagnetic valve of the clutch, the unavailable gear caused by the fault of the clutch isset as the fault gear standardization amount, then the available gear during the fault of the electromagnetic valve is calculated, and finally in combination with the gear priority, the optimal driving gear is calculated. Compared with fault handling through fixed gears, the method of fault handling for the state of the electromagnetic valve can avoid the risk that combination gears of a fault clutch are not available.

Description

technical field [0001] The invention belongs to the technical field of automatic transmission control, and in particular relates to a solenoid valve fault processing method based on automatic transmission control software. Background technique [0002] The shifting process of the automatic transmission is determined by the shift between different gears. Different gears are composed of the combination of clutches, and the clutches are controlled by solenoid valves. In the AT automatic transmission control software development process, when the electromagnetic valve fails, it will affect the combination of the clutch, and then affect the availability of its forward gear, static gear and reverse gear. [0003] When the vehicle is running, the transmission needs to be used as a transmission device to transmit the power of the engine to the wheels, and the transmission needs to select the appropriate gear according to the current working conditions to match the engine. There are...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H61/12F16H61/00
CPCF16H61/0009F16H61/12F16H2061/128
Inventor 邱兵杨涛
Owner SHENGRUI TRANSMISSION
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