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Shift control device, shift control method, gearbox and construction machinery

A control device and control method technology, applied in mechanical equipment, transmission device control, components with teeth, etc., can solve problems such as power transmission performance degradation, achieve smooth power transfer, fast shift response, and reduce wear.

Active Publication Date: 2016-02-03
SANY HEAVY IND CO LTD (CN)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide a new technical solution for shift control, which can overcome the problem of reduced power transmission performance caused by clutch manufacturing errors or wear and tear, and ensure fast shift response and power handover at any time. Smooth, but also able to reduce the slip friction generated in the clutch to reduce the wear of the clutch

Method used

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  • Shift control device, shift control method, gearbox and construction machinery
  • Shift control device, shift control method, gearbox and construction machinery
  • Shift control device, shift control method, gearbox and construction machinery

Examples

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Embodiment approach 1

[0087] Such as Figure 8 As shown, the shift expert control device 800 provided in this embodiment includes:

[0088] The rotational speed detection unit 802 detects the rotational speeds of multiple shafts in the gearbox. The rotation speed detection unit 802 includes a rotation speed sensor 8022 arranged on each shaft of the gearbox, wherein the shaft A is connected to the engine, and the rotation speed of the shaft A can be obtained directly from the engine rotation speed (the sensor 8022 can be used to detect the rotation speed of the engine shaft, or the equivalent reading The engine detection unit 8024 of the interface reads the engine speed from the construction machinery system), and the other four axes obtain signals through the speed sensor 8022 to realize the monitoring of multi-axis speed, and the control unit 804 can obtain the speed of each shaft through analysis and calculation .

[0089] The control unit 804 is connected to the rotation speed detection unit 8...

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Abstract

The present invention provides a gear shift control device, a gear shift control method, a gearbox, and construction machinery. The gear shift control device may include: a rotational speed detection unit for detecting the rotational speeds of multiple shafts in the gearbox in real time; a control unit connected to the rotational speed The detection unit notifies the adjustment execution unit to adjust the working pressure of the friction elements in the clutch; the adjustment execution unit is connected to the control unit and is used to adjust the working pressure of the friction elements. Through the technical scheme of the invention, the shifting requirements such as fast shifting response and smooth power transfer can be met.

Description

technical field [0001] The invention relates to the field of construction machinery transmission, in particular, to a shift control device, a shift control method, a gearbox and construction machinery. Background technique [0002] In the transmission system of construction machinery, a power shift gearbox is usually set up, mainly through hydraulically controlling the engagement and disengagement of the multi-disc clutch under load, and selecting different meshing relationship gear trains, so that the transmission ratio of the gearbox and The direction of rotation of the output shaft changes, thereby changing the speed and direction of travel (forward or reverse). [0003] The working environment of construction machinery is relatively complex, especially for equipment driven by gearboxes such as motor graders, loaders, and mechanical road rollers. The gear shifting performance is highly dependent on the power transmission performance of the clutch. [0004] Secondly, due...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H59/46F16H61/02
Inventor 马娇李志勇符溪
Owner SANY HEAVY IND CO LTD (CN)
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