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Automatic transmission calibration method

A technology of automatic transmission and calibration method, which is applied in the fields of instruments, machine gear/transmission mechanism testing, climate sustainability, etc., can solve the problems affecting commercial vehicles, long cycle, high cost, save manpower and material resources, and reduce production costs , the effect of shortening the calibration cycle

Pending Publication Date: 2022-07-12
SHAANXI FAST GEAR CO
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Problems solved by technology

[0004] The present invention provides an automatic transmission calibration method in order to solve the technical problems of long period, high cost and serious impact on commercial vehicle automatic transmission batch production efficiency in current automatic transmission calibration

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Embodiment Construction

[0042] In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments These are some embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the drawings herein may be arranged and designed in a variety of different configurations.

[0043] In terms of mechanical structure, an automatic transmission is generally composed of a torque converter, a planetary row, a clutch (brake), and the like. Both forward and reverse gears must work through a combination of two clutches or brakes. During the dynamic shifting process, one clutch is always kept pressed, and then the disengaging clutch and the...

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Abstract

The invention belongs to a transmission calibration method, and provides an automatic transmission calibration method in order to solve the technical problems that current automatic transmission calibration is long in period and high in cost, and the batch production efficiency of commercial vehicle automatic transmissions is seriously affected. A driver only needs to drive a vehicle, the pressure of a corresponding pressure point or the oil filling time is calibrated according to the appearing state and the inherent parameter point diagram of the automatic transmission in each stage of the gear shifting process, gear shifting is repeated, calibration optimization is continuously conducted till any segment does not have the related state any more in the gear shifting process, and the gear shifting process is completed. And calibration of the automatic transmission is completed. Through a self-learning calibration mode, the calibration of all gears can be quickly and automatically completed without depending on the experience of a calibration engineer, manual intervention is not needed, and the calibration efficiency is greatly improved while the calibration accuracy is improved.

Description

technical field [0001] The invention belongs to a transmission calibration method, in particular to an automatic transmission calibration method. Background technique [0002] Automatic transmissions have always been favored by consumers due to their advantages such as uninterrupted shifting power, large starting torque, and smooth shifting. Core technologies such as the design, production and calibration of automatic transmissions all have a significant impact on the quality of their final products. At present, the calibration of automatic transmissions mainly relies on the accumulation of experience of calibration engineers, which requires a long calibration period, and the calibration cost is very high, which seriously affects the mass production efficiency of commercial vehicle automatic transmissions. [0003] The Chinese patent application with publication number CN103527769B discloses a synchronizer self-learning identification control method and a position verificat...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M13/02G01D21/02
CPCG01M13/02G01D21/02Y02T10/60
Inventor 史艳龙严鉴铂刘义郝海洋高文娟
Owner SHAANXI FAST GEAR CO
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