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Start control method and device and engineering machine

A technology of engine and controller, which is applied in the direction of mechanical equipment, engine components, engine starting, etc. It can solve problems such as motor damage, diesel engine failure to start normally, and affect the service life of the motor, so as to achieve the effect of improving the service life

Active Publication Date: 2021-03-12
SANY HEAVY MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the current existing technology, it often happens that the diesel engine cannot start normally after the motor is started, resulting in damage to the motor and affecting the service life of the motor

Method used

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  • Start control method and device and engineering machine
  • Start control method and device and engineering machine
  • Start control method and device and engineering machine

Examples

Experimental program
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Effect test

no. 1 example

[0046]Seefigure 1 This embodiment provides a start control device 100, the start control device 100 provided in the present embodiment can avoid damage to the motor 200, thereby improving the life of the motor 200.

[0047]The start control device 100 provided in this embodiment is applied to the construction machine (not shown), wherein the construction machine includes an engine (not shown), the motor 200 and the start control device 100 provided by the present embodiment, the engine and motor 200 transmission connection The start control device 100 is electrically connected to the motor 200 for starting the motor 200, so that the motor 200 can drag the engine to start and start working.

[0048]In the present embodiment, the activation control device 100 includes a controller 110, a start relay 120, and a start unit 130, the start unit 130, and the activation relay 120 are electrically connected to the controller 110, and the start relay 120 is used in series with the motor 200; starti...

no. 2 example

[0069]Seefigure 2 This embodiment provides a launch control method, the starting control method provided in this embodiment can avoid damage to the motor 200, thereby improving the life of the motor 200.

[0070]The starting control method provided in this embodiment is the same as that of the starting control device 100 provided by the first embodiment, and the present embodiment is not mentioned, and the first embodiment can be referred to.

[0071]The specific steps of the start control method are as follows:

[0072]Step S100 acquires the real-time speed and fuel pressure value of the engine.

[0073]In the present embodiment, the real-time speed represents the speed of the engine in the current state, and the fuel pressure value represents the real-time pressure value of the diesel in the current engine.

[0074]Step S200, determine whether the fuel performing valve of the engine is turned on.

[0075]In the present embodiment, when the fuel performing valve of the engine is turned on, diesel en...

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Abstract

The embodiment of the invention provides a start control method and device and an engineering machine, and relates to the technical field of engineering machinery. The start control method comprises the steps of acquiring the real-time rotating speed and the fuel pressure value of an engine; judging whether opening of a fuel execution valve of the engine is met and a start instruction of the engine is received or not; and if opening of the fuel execution valve is met and the start instruction of the engine is received, controlling a motor to be started according to the real-time rotating speedand the fuel pressure value. According to the embodiment, by starting the motor through the opened fuel execution valve and the real-time rotating speed and the fuel pressure value of the engine, thesituation that when the motor is started, as the fuel execution valve is not started or the fuel pressure value and the real-time rotating speed do not meet conditions, the engine cannot be started normally or the motor is still started after the engine is started normally, and consequently the motor is damaged is avoided, and thus the service life of the motor is prolonged.

Description

Technical field[0001]The present invention relates to the field of construction machinery, and in particular, there is a start-up control method, a device and a construction machine.Background technique[0002]At present, the power source of the excavator is a diesel engine. The diesel engine is directly driven by the motor. During the start of the diesel engine, the motor will start the motor to activate diesel engines through the motor. In the present technology, the motor is often started, and the diesel engine cannot be started normally, resulting in damage to the motor, affecting the life of the motor.Inventive content[0003]It is an object of the present invention to provide a start-up control method, a device, and a construction machine that avoids damage to the motor damage and improve the life of the motor.[0004]Embodiments of the present invention can be implemented in this way:[0005]In the first aspect, the embodiment of the present invention provides a start-up control meth...

Claims

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Application Information

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IPC IPC(8): F02N11/08
CPCF02N11/08F02N11/0811F02N2200/041F02N2200/025
Inventor 王爱平余达
Owner SANY HEAVY MACHINERY