Control method and device for engine gear shifting and heavy truck tractor

A control method and technology of a control device, which are applied in transmission control, mechanical equipment, components with teeth, etc., can solve problems such as insufficient power, uneven shifting, and engine speed falling below idle speed, so as to ensure dynamic performance. , Improve the effect of shifting smoothness

Active Publication Date: 2021-10-29
WEICHAI POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Embodiments of the present invention provide a control method and device for engine gear shifting, and a heavy-duty truck tractor, to at least solve the problem that in the related art, when the engine shifts gears in the low-speed range ahead of time, it is easy to cause uneven gear shifting and insufficient power, which in turn will lead to engine failure. The speed drops below the idle speed, or even the technical problem of flameout

Method used

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  • Control method and device for engine gear shifting and heavy truck tractor
  • Control method and device for engine gear shifting and heavy truck tractor
  • Control method and device for engine gear shifting and heavy truck tractor

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Embodiment 1

[0026] According to an embodiment of the present invention, an embodiment of a control method for engine gear shifting is provided. It should be noted that the steps shown in the flow chart of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, Also, although a logical order is shown in the flowcharts, in some cases the steps shown or described may be performed in an order different from that shown or described herein.

[0027] figure 1 is a flow chart of a control method for engine shifting according to an embodiment of the present invention, such as figure 1 As shown, the method includes the following steps:

[0028] Step S102, acquiring power parameters of the engine after gear shifting, wherein the power parameters at least include reserve torque;

[0029] In a specific implementation process, the above power parameters include but are not limited to reserve torque. The power parameters related to the engine ...

Embodiment 2

[0053] According to another aspect of the embodiment of the present invention, a control device for engine gear shifting is also provided, image 3 is a schematic diagram of a control device for engine gear shifting according to an embodiment of the present invention, such as image 3 As shown, the engine shift control device includes: an acquisition module 32 , a first judgment module 34 and a control module 36 . The control device for shifting gears of the engine will be described in detail below.

[0054] The acquiring module 32 is used to acquire the power parameters of the engine after gear shifting, wherein the power parameters at least include the reserve torque; the first judging module 34 is connected to the above-mentioned acquiring module 32 and is used to judge the relationship between the power parameters and the preset power parameter threshold The size relationship is to obtain the judgment result; the control module 36 is connected to the above-mentioned first...

Embodiment 3

[0064] According to another aspect of the embodiments of the present invention, a heavy-duty tractor is also provided, and the heavy-duty tractor includes the above-mentioned engine shift control device.

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Abstract

The invention discloses a control method and device for gear shifting of an engine and a heavy truck tractor. Wherein, the method includes: obtaining the power parameters of the engine after shifting gears, wherein the power parameters include at least the reserve torque; judging the magnitude relationship between the power parameters and a predetermined power parameter threshold to obtain a judging result; according to the judging result, controlling whether the engine performs shift gears. The invention solves the technical problem in the related art that the shifting time of the engine in the low speed range is advanced, which may easily cause uneven shifting and insufficient power, and further cause the engine speed to drop below the idle speed, or even stall.

Description

technical field [0001] The invention relates to the technical field of engine control, in particular to a control method and device for engine gear shifting and a heavy truck tractor. Background technique [0002] In the existing simulation analysis, the shift control is generally based on the set speed, which is a single-mode control shift, especially when the engine is in the low speed range, the shift time is advanced, because the vehicle dynamics after the shift is not considered , the speed will be lower than the idle speed after shifting gears, or even the engine will be turned off, which will affect the power of the vehicle, making it difficult to accelerate the vehicle, or reverse the gear. [0003] Aiming at the problems in the above-mentioned related technologies that the shift timing of the engine in the low-speed range is advanced, it is likely to cause uneven shifting and insufficient power, which will cause the engine speed to drop below the idle speed, or even...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H61/02F16H61/04
CPCF16H61/0213F16H61/04F16H2061/0216F16H2061/0459
Inventor 王峰张扬曹原李风刚郝鹏飞
Owner WEICHAI POWER CO LTD
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