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clutch control method

A clutch control and clutch technology, applied in the direction of transmission control, toothed components, belts/chains/gears, etc., can solve problems such as sticking, slow shifting, etc., to improve shifting efficiency and shorten current changes Time, the effect of shortening the shift time

Active Publication Date: 2019-01-04
UNITED AUTOMOTIVE ELECTRONICS SYST
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a clutch control method to solve the phenomenon of slow shifting and stagnation caused by the deposition of impurities when the automatic transmission is in a steady state gear for a long time

Method used

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Embodiment Construction

[0034] The specific embodiments of the present invention will be described in more detail below with reference to the schematic diagrams. The advantages and features of the present invention will become apparent from the following description and claims. It should be noted that, the accompanying drawings are all in a very simplified form and in inaccurate scales, and are only used to facilitate and clearly assist the purpose of explaining the embodiments of the present invention.

[0035] An embodiment of the present invention provides a clutch control method for controlling a clutch in an automatic transmission tool, such as figure 1 shown, figure 1 A flowchart of the clutch control method in the embodiment of the present invention is shown.

[0036] First, as figure 1 In step S1, it is first necessary to determine whether the automatic transmission of the vehicle is in a steady-state gear. When the automatic transmission of the vehicle is in a steady-state gear, the oil ...

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Abstract

The invention provides a method for controlling a clutch. When an automatic transmission of a vehicle is in a stable gear, and the clutch is in a disengagement state, the current of a drive unit of the clutch is kept as a critical current, and the drive unit of the clutch is subjected to periodic chattering control. In the chattering process, the current of the drive unit of the clutch changes periodically, and therefore the pressure of the drive unit of the clutch changes periodically, and then sediment impurities in the drive unit are automatically cleaned away so as to prevent gear shifting jamming. Meanwhile, when gear shifting is carried out, the current of the drive unit of the clutch changes into the current needed for the gear shifting process from the critical current, the time of changing of the current of the drive unit of the clutch is shortened, then the response time of the pressure of the drive unit is shortened, and therefore the gear shifting time is shortened, and the gear shifting efficiency is improved.

Description

technical field [0001] The invention relates to the field of automatic transmission control, in particular to a clutch control method. Background technique [0002] In the steady-state gear position of the automatic transmission, one or more clutches are required to transmit the torque of the automatic transmission to the transmission structure of the vehicle to drive the vehicle. valve, take the NL solenoid valve as an example) current to achieve different pressure control. [0003] When the automatic transmission is in a steady state gear, some clutches are always disengaged. When the current of the drive unit of these disengaged clutches is zero for a long time, it may lead to the accumulation of impurities or the sudden build-up of pressure to overcome the static friction force of the drive unit for too long, resulting in a sticking phenomenon, which can lead to automatic transmission shift control. When the pressure cannot be built up or the pressure builds up slowly,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H61/28F16H61/02
CPCF16H61/0202F16H61/2807
Inventor 邹绵意王振锁李淑英杨庆张宽宽刘阅历宝录张庆洪
Owner UNITED AUTOMOTIVE ELECTRONICS SYST
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