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Hydraulic automatic gearbox gear-shifting control method and system

A technology of automatic transmission and control method, which is applied in the direction of transmission control, transmission, fluid transmission, etc., can solve the problems that affect the smoothness of shifting, and the impact of shifting is easy to occur, so as to improve smoothness and reduce shifting impact effect

Inactive Publication Date: 2014-10-29
SHENGRUI TRANSMISSION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a hydraulic automatic transmission gear shift control method and system to solve the problem in the current technology that the clutch control strategy is the same under different gear shifting conditions. The shock of shifting occurs, which affects the smoothness of shifting

Method used

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  • Hydraulic automatic gearbox gear-shifting control method and system
  • Hydraulic automatic gearbox gear-shifting control method and system
  • Hydraulic automatic gearbox gear-shifting control method and system

Examples

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Embodiment

[0053] see figure 1 , figure 1 It is a flow chart of a gear shift control method for a hydraulic automatic transmission provided by an embodiment of the present invention. Such as figure 1 As shown, the method includes:

[0054] Step S101: detecting the shift signal of the automatic transmission;

[0055] Specifically, the shift signal of the automatic transmission from the automatic transmission cooperative control system is detected.

[0056] Step S102: When the shift signal is detected, compare the current shifting condition with preset different shifting conditions to obtain a preset shifting condition that matches the current shifting condition ;

[0057] Specifically, the preset different shifting working conditions include: power upshifting working condition, power downshifting working condition, powerless upshifting working condition and powerless downshifting working condition. The working condition of power upshift refers to the working condition in which the g...

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PUM

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Abstract

The invention discloses a hydraulic automatic gearbox gear-shifting control method and system. The method includes the steps of detecting a gear-shifting signal of an automatic gearbox; when the gear-shifting signal is detected, comparing a current gear-shifting working condition with different preset gear-shifting working conditions to obtain the certain preset gear-shifting working condition matched with the current gear-shifting working condition; executing a clutch control mode corresponding to the certain preset gear-shifting working condition. By means of the hydraulic automatic gearbox gear-shifting control method and system, the clutch control mode can be adjusted in time to adapt to the current gear-shifting working condition, so that gear-shifting impact can be reduced, and the gear-shifting smoothness can be improved.

Description

technical field [0001] The invention relates to the technical field of automatic transmission control, in particular to a gear shift control method and system for a hydraulic automatic transmission. Background technique [0002] An automatic transmission is a device that can automatically shift gears according to the engine speed relative to a manual transmission. The advent of automatic transmissions has eased the driver's sense of tension when driving a car. Since there is no need to change gears during driving, the driver can concentrate on observing the situation around the vehicle, and thanks to the precise electronic control device, the automatic transmission can not only adapt to various driving conditions, but also to different driving styles. This means that the shifting timing depends on the driving style, engine load, vehicle speed and engine speed, thereby making full use of the engine's available power. Hydraulic automatic transmission is an automatic transmis...

Claims

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Application Information

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IPC IPC(8): F16H59/02F16H61/14F16H61/40
CPCF16H59/02F16H61/0265F16H61/0437F16H61/2807F16H2061/0459
Inventor 刘祥伍刘强戴振坤柳浩孟超
Owner SHENGRUI TRANSMISSION
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