Gear shifting control method and device for AMT engine

A technology of engine and limit value, applied in the direction of transmission control, mechanical equipment, components with teeth, etc., can solve problems affecting driving safety, power loss, power interruption, etc.

Active Publication Date: 2022-03-29
WEICHAI POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Shifting gears can be upshifting or downshifting, but at present, heavy trucks will experience power interruption during the downshifting process of heavy load climbing and overtaking, resulting in power loss, which seriously affects the safety of driving

Method used

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  • Gear shifting control method and device for AMT engine
  • Gear shifting control method and device for AMT engine
  • Gear shifting control method and device for AMT engine

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Embodiment Construction

[0042] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiment of the application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the application. Obviously, the described embodiment is only It is a part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0043] At present, heavy trucks will experience power interruption during heavy-load climbing and overtaking downshifts, resulting in power loss and seriously affecting driving safety.

[0044]In view of the above technical problems, the embodiment of the present application provides a shift control method of an AMT engine, which can obtain the throttle opening inf...

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Abstract

The invention discloses a gear shifting control method and device for an AMT engine. The gear shifting control method comprises the steps that accelerator opening degree information, current gear information and target gear information of a target vehicle are obtained; according to the accelerator opening degree information, the current gear information and the target gear information, whether the target vehicle is in the downshift process with the power requirement or not is determined; if it is determined that the target vehicle is in the downshift process with the power demand, the initial PID parameter value corresponding to the speed regulation stage in the downshift process with the power demand is adjusted to the target PID parameter value, and the initial smoke intensity limit value corresponding to the torque returning stage in the downshift process with the power demand is adjusted to the target smoke intensity limit value; the response rate of the downshift process with the power requirement is increased; and according to the target PID parameter value and the target smoke intensity limit value, the downshift process of the AMT engine is controlled. According to the scheme, the response rate of the downshift process with the power requirement is increased, and the dynamic property and safety of the target vehicle during heavy-load climbing or rapid overtaking are guaranteed.

Description

technical field [0001] The present application relates to the field of automatic control, in particular to a gear shift control method and device for an AMT engine. Background technique [0002] AMT is the abbreviation of Automated Mechanical Transmission, which is an automatic transmission system controlled by a microcomputer on the basis of a dry clutch and a gear transmission. [0003] During the actual driving process of the vehicle, it is usually necessary to determine the optimal operating gear of the vehicle according to the current actual operating status of the vehicle, the driver's intention, and the form environment, so as to shift gears. [0004] Shifting gears can be upshifting or downshifting, but at present, heavy trucks will experience power interruption during the downshifting process of heavy load climbing and overtaking, resulting in power loss, which seriously affects the safety of driving. Contents of the invention [0005] In order to solve the above...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H61/04F16H59/24F16H59/70
CPCF16H61/0437F16H59/24F16H59/70F16H2061/0078F16H2061/0492Y02T10/40
Inventor 孙文平陈彦波栾军山张晨
Owner WEICHAI POWER CO LTD
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