Atomatic transmission performance and fault detection apparatus and method thereof

Abstract

The invention discloses a testboard used for detecting automatic transmission performance and a fault. The testboard comprises a pedestal, a variable-frequency and variable-speed motor and a load loader, wherein the variable-frequency and variable-speed motor and the load loader are arranged on the pedestal. An input terminal of an automatic transmission is connected with the variable-frequency and variable-speed motor and an output terminal is connected with the load loader. A computer inputs an instruction to a frequency converter control module so as to make the variable-frequency and variable-speed motor simulate an engine and provide power for the automatic transmission. The computer inputs the instruction to a loading control module so as control the load applied to an automatic transmission output shaft by the load loader and simulate a pavement state of a wheel. Actual data collected by a sensor is returned to the computer and compared with theoretical data. If the two data are consistent, the automatic transmission performance is qualified and there is no fault. If the two data are inconsistent, the automatic transmission performance is not qualified and there is the fault. A frequency conversion speed regulator can move and rotate back and forth, up and down relatively to the pedestal and a loading device can move left and right relatively to the pedestal. Therefore, the apparatus and the method can be suitable for different models of the automatic transmissions.

Description

technical field [0001] The invention relates to a device and a method for detecting the performance and failure of auto parts, in particular to a device and method for detecting the performance and failure of an automatic transmission. Background technique [0002] With the development of our country's social economy, the number of cars is also increasing, and automatic transmissions are widely used because of their simple operation. In production and manufacturing, the automatic transmission must go through various performance tests from production to market; when the automatic transmission fails, in the existing automobile maintenance industry, the automatic transmission is generally repaired by the maintenance personnel on their own. Assess the fault based on experience to see where the fault occurs, but because the level of maintenance personnel is also uneven, and the structure of the automatic transmission is relatively complicated, integrating machine, electricity, an...

AI Technical Summary

Problems solved by technology

In production and manufacturing, the automatic transmission must go through various performance tests from production to market; when the automatic transmission fails, in the existing automobile maintenance industry, the automatic transmission is generally repaired by the maintenance personnel on their own. Assess the fault based on experience to see where the fault occurs, but because the level of maintenance personnel is also uneven, and the structure of the automatic transmission is relatively complicated, integrating machine, electricity, and hydraulics, the cause of the fault is complicated and difficult to distinguish, so this In this case, it is easy to cause misjudgment or even misjudgment, resulting in the situation that the real fault cannot be eliminated and needs to be repaired many times; The cost of the detection device and method is too high, so a device and method capable of detecting the performance and faults of different types of automatic transmissions are currently required on the market

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