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Light truck automated mechanical transmission (AMT) starting gear selection and control method

A technology of automatic transmission and control method, which is applied in the direction of transmission control, toothed components, belt/chain/gear, etc., which can solve problems such as clutch overheating, reduced clutch wear life, and reduced vehicle power, so as to achieve a boost start The effect of speeding up time, avoiding abuse, and saving time

Inactive Publication Date: 2019-12-10
NANJING AUTOMOBILE GROUP CORP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] AMT is the same as MT. If the operator selects an inappropriate starting gear, using 2nd gear to start under full load and climbing, it will cause the clutch to overheat, the wear life of the clutch will be reduced, and the power of the vehicle will also be reduced.
[0004] At present, there are light truck AMT models on the foreign market, but they use hydraulic torque converters instead of clutches. There is no clutch overheating and reduced clutch wear life when selecting the 2nd gear starting gear, but there are technical resources for light truck hydraulic torque converter technology. , cost and other issues, the light truck AMT using the traditional clutch is still the mainstream and the main choice

Method used

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  • Light truck automated mechanical transmission (AMT) starting gear selection and control method
  • Light truck automated mechanical transmission (AMT) starting gear selection and control method

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Embodiment Construction

[0036] Specific embodiments of the present invention are described in detail below, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.

[0037] Unless expressly stated otherwise, throughout the specification and claims, the term "comprise" or variations thereof such as "includes" or "includes" and the like will be understood to include the stated elements or constituents, and not Other elements or other components are not excluded.

[0038] The AMT automatic transmission of a light truck in Yuejin adopts such as figure 1 AMT automatic transmission starting gear selection control system constitutes, and adopts such as figure 2 AMT automatic transmission starting gear selection and protection method.

[0039] A starting gear selection control system of an AMT automatic transmission, mainly composed of an electronic manipulator, an AMT automatic transmission, a TCU control unit, an instrument, and a wiring...

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Abstract

The invention discloses an automated mechanical transmission (AMT) starting gear selection control system and control method. In simple terms, two starting modes are provided for the amt of a light truck; meanwhile, a control unit can judge whether the starting mode selection is corrected or not according to the preset temperature condition; and by means of the intelligent downshift strategy, theproblems of second-gear clutch abuse, clutch overheating, second-gear starting power insufficiency and the like are avoided, and higher safety and reliability are achieved.

Description

Technical field: [0001] The invention belongs to the design field of light truck AMT automatic transmission, in particular to a light truck AMT automatic transmission starting gear selection and control system, and also relates to a control method of the system. Background technique: [0002] The automatic transmission AMT for light trucks is currently in its infancy, and the starting gear selection and control method for the AMT automatic transmission for light trucks is a new topic. The light truck transmission and its power matching are different from those of passenger cars. Its 1st and 2nd gears have relatively large speeds, and both 1st and 2nd gears can be started. Although its 1st gear can meet all working conditions; but for no-load and partial load, Due to the requirements of rapid speed-up, economy, and shifting comfort, there is a great demand for starting in 2nd gear in this working condition. According to user surveys, the proportion of starting in 2nd gear wit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H61/28F16H61/02
CPCF16H61/0213F16H61/2807
Inventor 吴国宽杜岩乔丹张宏健宋宁
Owner NANJING AUTOMOBILE GROUP CORP
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