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Bulldozer gear shifting control method and device and computer storage medium

A kind of control method, technology of bulldozer

Active Publication Date: 2020-03-17
SHANTUI CONSTR MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current of the current electronically controlled shifting technology for shifting out of the gear position does not wait until the pressure of the shifting in the gear is full of signals in the waiting area of ​​the oil discharge, and the pressure of shifting out of the gear continues to drop, and the shifting in current continues to rise. Clutches fighting off and in shifting gears, causing a lot of shock

Method used

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  • Bulldozer gear shifting control method and device and computer storage medium
  • Bulldozer gear shifting control method and device and computer storage medium
  • Bulldozer gear shifting control method and device and computer storage medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] An embodiment of the present invention provides a bulldozer shift control method, which is suitable for an electronically controlled bulldozer. Bulldozer shift control includes oil filling phase, torque exchange phase and torque increase phase, figure 1 It is a flow chart of a bulldozer shift control method provided in Embodiment 1 of the present invention, refer to figure 1 , the bulldozer shift control method includes:

[0042] S110. After entering the fuel charging phase and before entering the torque increasing phase, determine whether a potential shift shock event is triggered.

[0043] Wherein, a potential shift shock event refers to a shift shock event that has not yet occurred, which is used to indicate that a shift shock is about to occur or there is a risk of a shift shock.

[0044] S120. If it is determined that a potential shift shock event is triggered, cancel the shift operation on the bulldozer.

[0045] Specifically, the shift control of bulldozers in...

Embodiment 2

[0048] figure 2 It is a flow chart of a bulldozer shift control method provided by Embodiment 2 of the present invention. Embodiment 2 of the present invention further optimizes the technical solution of Embodiment 1.

[0049] Optionally, after entering the fuel filling phase and before entering the torque increasing phase, it is judged whether to trigger a potential shift shock event, including:

[0050] At the setting time, check whether the pressure of the shift-in gear clutch reaches the first target pressure and whether the pressure of the shift-out gear clutch reaches the second target pressure. the moment after time;

[0051] If the pressure of the shift-in clutch does not reach the first target pressure, and / or the pressure of the shift-out clutch does not reach the second target pressure, it is determined that a potential shift shock event has been triggered; if the pressure of the shift-in clutch When the first target pressure is reached and the off-range clutch ...

Embodiment 3

[0077] Figure 5It is a flow chart of a bulldozer shift control method provided by Embodiment 3 of the present invention. Embodiment 3 of the present invention further optimizes the technical solution of Embodiment 1.

[0078] Optionally, after entering the fuel filling phase and before entering the torque increasing phase, it is judged whether to trigger a potential shift shock event, including:

[0079] After entering the oil filling stage and before entering the torque increase stage, when receiving the engine speed change request signal of the bulldozer, determine according to the engine speed change request signal whether the engine speed requested to change reaches the speed mutation threshold;

[0080] If the engine speed requested to change reaches the speed mutation threshold, it is determined that a potential shift shock event is triggered; if the engine speed requested to change does not reach the speed mutation threshold, it is determined that the potential shift ...

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Abstract

The embodiment of the invention discloses a bulldozer gear shifting control method and device and a computer storage medium. The bulldozer gear shifting control method comprises the steps of: judgingwhether to trigger a potential gear shifting impact event or not after entering an oil charging stage and before entering a torque increasing stage, and cancelling gear shifting operation on the bulldozer if the potential gear shifting impact event is determined to be triggered. By means of the control method, the bulldozer can effectively conduct gear shifting control, and the problem of gear impact during gear shifting is avoided.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of shift control, and in particular, to a bulldozer shift control method, device, and computer storage medium. Background technique [0002] The shifting control modes of the existing bulldozer gearbox mainly include mechanical manipulation control, hydraulic control and electronic control. Electronically controlled shifting is more and more popular with customers because of its precise control and small control force. With the continuous improvement of users' requirements for the operating comfort of construction machinery and equipment, the continuous improvement of technologies such as cleanliness, machining accuracy, and solenoid valve reliability, the electronically controlled shifting technology will become the mainstay of the entire vehicle on bulldozers, especially high-horsepower bulldozers. standard. The control curve of electronically controlled shifting is the key factor o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H61/02F16H61/12
CPCF16H61/0213F16H61/12F16H2061/062F16H2061/1224
Inventor 陈莉胡滨王生波王涛卫高祥超孔海龙
Owner SHANTUI CONSTR MASCH CO LTD
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