Electronic control device for engineering machinery and working method

An electronic control device and construction machinery technology, applied in the direction of engine motor starting, electrical control, mechanical equipment, etc., can solve the problems of no safety protection measures for the engine, damage to the engine and supercharger, damage to the starter and the battery, etc., to achieve Protect the starter and battery, avoid dangerous events, and ensure the safety and reliability of the system

Pending Publication Date: 2018-08-21
XCMG CONSTR MACHINERY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the deficiencies in the prior art, the present invention provides an electric control device and working method for construction machinery, which solves the problem that the engine and supercharger are easily damaged when the existing engine is started at

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  • Electronic control device for engineering machinery and working method

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Embodiment Construction

[0029] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0030] like figure 1 As shown: the invention discloses an electric control device for construction machinery, including a parking brake switch 2, a handle neutral switch 3, an accelerator idle switch 4, a start switch 5, a controller 6, a start relay 8, an engine ECU 9, Starter 10, flameout switch 11, start relay 8 includes start relay coil 81 and start relay contact 82, parking brake switch 2, handle neutral switch 3, throttle idle switch 4, start switch 5, and controller 6 all pass through Pin A is connected to the power supply, the controller 6 is connected to the parking brake switch 2, the handle neutral switch 3, the throttle idle switch 4, the start switch 5, the start relay contact 82, ...

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Abstract

The invention discloses an electronic control device for engineering machinery and a working method. A controller is connected with a parking brake switch, a handle meso-position switch, an accelerator idle switch, a starting switch, a starting relay contact, an engine ECU (electronic control unit) and a flameout switch. The engine ECU is connected with an engine and a starting relay coil, one endof the starting relay contact is connected with the controller, the other end of the starting relay contact is connected with a starter, and the controller is further connected with a brake valve. The emergency flameout switch and a power forced recovery switch are further connected between the controller and the engine ECU, and an emergency brake switch is further arranged to control a power supply of the whole electronic control device. Damage to the engine and a pressurizer caused by improper operation in the starting and flameout process of the engine can be avoided, damage to the starterand a storage battery caused by improper operation in the starting process is avoided, emergency brake of the whole machinery can be realized, emergency flameout of the engine can be realized, poweris recovered in a forced manner under perilous working conditions, and safety and reliability of the whole machinery are greatly improved.

Description

technical field [0001] The invention relates to the technical field of construction machinery, in particular to an electric control device for construction machinery and a working method. Background technique [0002] The current construction machinery can start and stop the engine under high throttle, but this will cause damage to the engine, especially the damage to the supercharger; the engine does not have a good safety protection system before starting, and the safety and reliability of the whole vehicle is not good. High; during the starting process of the engine, the control and protection of the starting process is insufficient, resulting in damage to the starter and the battery; moreover, when the engine fails and the power is reduced, if the whole machine is on a ramp or in a dangerous area at this time, there is no Good countermeasures can cause great harm. Contents of the invention [0003] In order to solve the deficiencies in the prior art, the present inven...

Claims

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Application Information

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IPC IPC(8): F02D41/22F02N11/10
CPCF02D41/22F02N11/10Y02T10/40
Inventor 王平市杨洁杨全超王双韩晨起卜宪森周保刚
Owner XCMG CONSTR MACHINERY
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