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Self-calibration method and system under complete machine condition of engineering machinery gearbox

A construction machinery, self-calibration technology, applied to mechanical equipment, components with teeth, belts/chains/gears, etc., can solve the problem of neglecting influence, etc., to achieve compensation inconsistency, good shifting smoothness, and smooth clutch engagement Effect

Active Publication Date: 2021-10-19
JIANGSU ADVANCED CONSTR MASCH INNOVATION CENT LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The existing technology has the following defects: the above-mentioned technology only studies the determination of the half-junction point pressure and temperature compensation, ignoring the influence of the rapid oil filling stage on the gear shifting process of the gearbox

Method used

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  • Self-calibration method and system under complete machine condition of engineering machinery gearbox
  • Self-calibration method and system under complete machine condition of engineering machinery gearbox
  • Self-calibration method and system under complete machine condition of engineering machinery gearbox

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Effect test

Embodiment 1

[0050] Embodiment 1: the condition parameter selects the turbine speed as an example;

[0051] The flowchart of an embodiment of the present invention is as follows figure 2 As shown, the specific steps are as follows:

[0052] (1) Manually adjust the fast oil filling time of the clutch on the gearbox test bench to make the clutch engage smoothly, and take this time as the theoretical oil filling time T of the clutch CK ;

[0053] (2) Based on the theoretical oil filling time T CK The clutch is filled with oil as the benchmark, and the oil filling curve selects the first two stages of the clutch engagement process, such as image 3 shown. Acquisition pressure curve start time t s and end time t e The corresponding turbine speed, get the reference turbine speed difference N CK_Basic , forming a reference turbine speed difference strategy table and storing it in the gearbox control unit;

[0054] (3) When the state of the whole machine satisfies the self-calibration pre...

Embodiment 2

[0059] A self-calibration system under the condition of a construction machinery gearbox, including a controller, the controller includes a memory and a processor, the memory is used to store instructions, and the instructions are used to control the processor to operate to perform the above-mentioned Self-calibration method under the condition of complete construction machinery gearbox.

[0060] In some embodiments, the memory also stores a reference condition parameter difference.

[0061] In some embodiments, the self-calibration system under the condition of the complete construction machinery gearbox further includes: a shift handle, a parking brake, a transmission control unit, an engine control unit, a temperature sensor, a rotational speed sensor, and a self-calibration control unit ;The shift handle, parking brake, transmission control unit, engine control unit, temperature sensor, speed sensor, and self-calibration control unit are all connected to the controller,

...

Embodiment 3

[0069] A loader includes the above-mentioned self-calibration system under the condition of the complete machine of the construction machinery gearbox.

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Abstract

The invention discloses a self-calibration method and system under the complete machine condition of an engineering machinery gearbox. The method can automatically calibrate the rapid oil charging time of a gearbox clutch, thereby enabling the clutch combination to be more stable, reducing the gear shifting impact of the gearbox, and facilitating the batch installation and application of the gearbox. By means of the self-calibration method, the rapid oil charging time of each clutch can be accurately obtained, the inconsistency of gearbox element production can be compensated, and meanwhile it is ensured that the gearbox can still keep good gear shifting smoothness after being used for a long time or transmission oil is replaced.

Description

technical field [0001] The invention belongs to the technical field of engineering machinery, and relates to a gearbox self-calibration method and system, in particular to a self-calibration method and system under the condition of a complete engineering machinery gearbox. Background technique [0002] The construction machinery power shift automatic transmission contains multiple wet clutches, which form different transmission gears according to the combination of different clutches. The wet clutch is composed of a clutch bag, a piston, a spring, an array of friction plates and light plates. When the clutch is combined, the transmission oil enters and gradually fills the clutch bag, and then the oil pushes the piston to overcome the spring force to eliminate the idle travel between the piston and the friction plate. As the oil pressure rises, the clutch is gradually compressed, and the torque that can be transmitted Gradually increase and reach the set value. The process ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H61/06
CPCF16H61/061F16H2061/062
Inventor 吕昌刘彦辉朱浩月
Owner JIANGSU ADVANCED CONSTR MASCH INNOVATION CENT LTD
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