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Multi-clutch control method and system applicable to multi-gear hydraulic automatic transmission

An automatic transmission and multi-clutch technology, applied in the direction of transmission control, transmission, fluid transmission, etc., can solve the difficulty of shift control, confusion of clutch control, difficulty in adapting to multi-gear trend requirements, etc. question

Active Publication Date: 2015-03-25
SHENGRUI TRANSMISSION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, with the increase in the number of gears of the hydraulic automatic transmission, the difficulty of shift control will increase, and the control of the clutch will be more prone to confusion as the amount of control codes increases
Therefore, the traditional gear-based clutch control strategy has been difficult to meet the trend requirements of this multi-gear

Method used

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  • Multi-clutch control method and system applicable to multi-gear hydraulic automatic transmission
  • Multi-clutch control method and system applicable to multi-gear hydraulic automatic transmission
  • Multi-clutch control method and system applicable to multi-gear hydraulic automatic transmission

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Embodiment Construction

[0112] The core of the invention is to provide a multi-clutch control method suitable for a multi-gear hydraulic automatic transmission.

[0113] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0114] In the method provided by the embodiment of the present invention, see figure 1 , the embodiment includes the following steps:

[0115] S101. Determine the gear that needs to be switched and determine the first clutch to be disengaged and the second clutch to be closed.

[0116] When switching between different gears, different clutches are required to be disengaged and engaged. For a certain automatic transmission, when switching between gears, one of the corresponding two clutches is disengaged and the other is closed.

[0117] In this embodiment, the clutch that needs to be disengage...

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Abstract

The invention provides a multi-clutch control method and system applicable to a multi-gear hydraulic automatic transmission. The method includes the steps of judging the gear needing to be switched, determining a first clutch to be disengaged and a second clutch to be engaged, determining the type of the gear shifting mode according to the gear needing to be switched and the input power of the hydraulic automatic transmission, wherein the determined types of the gear shifting mode include the power upshifting mode, the power downshifting mode, powerless upshifting mode and the powerless downshifting mode; starting the control mode corresponding to the determined gear shifting mode. The multi-clutch control method and system applicable to the multi-gear hydraulic automatic transmission achieves the purposes of preventing the clutches from being controlled in disorder and improving the control efficiency of the automatic transmission.

Description

technical field [0001] The invention relates to the technical field of automatic transmissions, in particular to a multi-clutch control method and system suitable for multi-gear hydraulic automatic transmissions. Background technique [0002] With China's reform and opening up and economic development, automobiles have gradually become a common means of transportation. Many of these cars are equipped with automatic transmissions, most of which are hydraulic automatic transmissions. [0003] The different gears of the hydraulic automatic transmission are actually the arrangement and combination of different clutch disengagement and closing states, which are used to connect or separate the power transmission line to achieve different transmission ratio lines. In the process of shifting gears, it is required to disengage a clutch and engage a clutch at the same time. [0004] For the traditional clutch control method based on gear position, each shift combination needs to set...

Claims

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Application Information

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IPC IPC(8): F16H61/38F16H61/14
CPCF16H61/14F16H61/38
Inventor 戴振坤郭伟王书翰柳浩刘强曹永
Owner SHENGRUI TRANSMISSION
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