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Automatic transmission half-joint point test method and system, equipment and storage medium

An automatic transmission, semi-joint technology, applied in the testing of machine/structural components, testing of mechanical components, instruments, etc., can solve problems such as delay or error, low test accuracy, and inability to accurately measure the working state of transmission power.

Inactive Publication Date: 2019-09-17
CHINA FIRST AUTOMOBILE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the difficulty of continuous control of the rotational speed, there is a delay or error in the measurement of the rotational speed, and it is impossible to accurately measure the working state at the beginning of power transmission, resulting in low test accuracy

Method used

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  • Automatic transmission half-joint point test method and system, equipment and storage medium
  • Automatic transmission half-joint point test method and system, equipment and storage medium
  • Automatic transmission half-joint point test method and system, equipment and storage medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] figure 1 It is a flow chart of a method for testing a semi-joint point of an automatic transmission provided in Embodiment 1 of the present invention. This embodiment is applicable to the situation of testing the semi-joint point information of the automatic transmission. Specifically, the method for testing the semi-joint point of an automatic transmission can be executed by equipment, and the equipment includes a host computer, an industrial computer, a computer, and the like.

[0042] Further, the method for testing the half-joint point of the automatic transmission can be realized by means of software and / or hardware, and integrated into a test system for the half-joint point of the automatic transmission. Wherein, the automatic transmission semi-joint point test system includes: a host computer, a solenoid valve, a drive motor, an automatic transmission and a load motor, the host computer is connected with the solenoid valve and the drive motor respectively, and t...

Embodiment 2

[0055] figure 2 It is a flow chart of a method for testing a semi-joint point of an automatic transmission provided by Embodiment 2 of the present invention. This embodiment is optimized on the basis of the above embodiments, and step S210 is added to adjust the working state of the automatic transmission so that the automatic transmission is in the working condition to be tested; and the process of increasing the pressure is described in detail. It should be noted that for technical details not exhaustively described in this embodiment, reference may be made to any of the foregoing embodiments.

[0056] Specifically, such as figure 2 As shown, the method specifically includes the following steps:

[0057] S210. Adjust the working state of the automatic transmission so that the automatic transmission is in a working condition to be tested.

[0058] Specifically, before the initial pressure is applied, the clutch of the automatic transmission is placed in a disengaged stat...

Embodiment 3

[0077] Figure 4It is a schematic structural diagram of a test system for a semi-joint point of an automatic transmission provided in Embodiment 3 of the present invention. The automatic transmission semi-junction point testing system provided in this embodiment includes: a host computer 310, a solenoid valve 320, a drive motor 330, an automatic transmission 340, and a load motor 350. The host computer 310 is connected with the solenoid valve 320 and the drive motor 330 respectively, and the automatic transmission The input shaft of 340 is connected with drive motor 330, and the output shaft of automatic transmission 340 is connected with load motor 350; wherein, upper computer 310 includes: initial control module 311, is used for receiving test request, controls the opening degree of solenoid valve 320 to automatically The clutch in the transmission 340 applies an initial pressure, and records the corresponding initial torque; the boost module 312 is used to increase the pres...

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PUM

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Abstract

The invention discloses an automatic transmission half-joint point test method and system, equipment and a storage medium. The method comprises the steps that a rest request is received, the aperture of a solenoid valve is controlled to apply initial pressure to a clutch in an automatic transmission, and corresponding initial torque is recorded; on the basis of the initial pressure, the pressure is increased according to a preset step, and meanwhile real-time torque corresponding to the pressure acting on the clutch is monitored; and after it is monitored that the real-time torque meets a preset condition, half-joint point information of the automatic transmission is determined according to the real-time torque and the initial torque. According to the technical scheme, the half-joint point information is determined by monitoring the pressure acting on the clutch in real time, and therefore test precision is improved.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of automobiles, in particular to a method, system, device and storage medium for testing a semi-joint point of an automatic transmission. Background technique [0002] The clutch is located between the engine and the gearbox, and the output shaft of the clutch is the input shaft of the gearbox. During the running of the car, the driver temporarily separates or gradually engages the engine and the gearbox by depressing or releasing the clutch pedal, thereby cutting off or transmitting the power input from the engine to the transmission. The half-combination point is the corresponding working state when the clutch just starts to transmit power. During the driving process of the vehicle, the half-joint point plays a key role in the crawling and starting performance, and the smoothness of shifting. If the half-joint point of the transmission cannot be accurately measured during the off...

Claims

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Application Information

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IPC IPC(8): G01M13/022G01M13/027
CPCG01M13/022G01M13/027
Inventor 马岩李长洲曹龙张荣辉朱桂庆
Owner CHINA FIRST AUTOMOBILE