KR20130057615A - Engine control system for construction equipment - Google Patents
Engine control system for construction equipment Download PDFInfo
- Publication number
- KR20130057615A KR20130057615A KR1020110123426A KR20110123426A KR20130057615A KR 20130057615 A KR20130057615 A KR 20130057615A KR 1020110123426 A KR1020110123426 A KR 1020110123426A KR 20110123426 A KR20110123426 A KR 20110123426A KR 20130057615 A KR20130057615 A KR 20130057615A
- Authority
- KR
- South Korea
- Prior art keywords
- rpm
- engine
- speed
- input unit
- construction equipment
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D29/00—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D31/00—Use of speed-sensing governors to control combustion engines, not otherwise provided for
- F02D31/001—Electric control of rotation speed
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/04—Introducing corrections for particular operating conditions
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/04—Introducing corrections for particular operating conditions
- F02D41/045—Detection of accelerating or decelerating state
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D45/00—Electrical control not provided for in groups F02D41/00 - F02D43/00
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
Abstract
The present invention provides an RPM selector for selecting revolution per minute (RPM); An operation input unit for inputting an operation of construction equipment; A speed controller controlling a speed of an engine driving an operation according to the input operation; And an equipment controller connected to the RPM selector, the operation input unit, and the speed controller, and sensing an input of the operation input unit to control the speed controller to maintain the engine speed at the selected RPM. It relates to a construction equipment engine control system. As a result, the low idle area of the engine, which is vulnerable to the load, rises to a predetermined engine speed from the operation of each operating device and the engine speed selection switch in the low idle area of the engine, thereby actively complementing the low idle area. In addition, by preventing excessive use of the accelerator pedal to prevent sudden start-off or start-up off, it is possible to prevent unnecessary engine speed increase and to select a desired engine speed when needed to improve fuel economy. In addition, the driver can reduce fatigue while driving and work efficiency can be improved.
Description
The present invention, through the monitor capable of supporting the engine speed selection switch (RPM Select Switch) or the user interface (Interface) in the engine of a construction machine, the engine speed in conjunction with the various operating devices on the equipment to actively activate the engine speed More specifically, it relates to a system for realizing ascension, and more particularly to a hydraulic control lever for operating a gear selector for driving or operating a work device in the engine low idle range. During operation or when steering wheel is operated to change direction, it rises to the engine speed determined according to the selected switch and actively responds to the load on the machine, responding to excessive engine speed drop in the low idle area and reducing operator fatigue. And an engine control system for construction equipment that improves work efficiency.
In construction equipment, if the load on the machine is high in the low idle range of the engine, the engine will start off due to excessive engine speed deterioration, and the engine will suddenly turn off or stop before the driver reacts to the engine. In order to do this, the driver urges the accelerator pedal swiftly, which causes excessive fuel consumption and driver fatigue due to an increase in engine speed more than necessary.
On the other hand, in the invention disclosed in the following patent document, the engine torque characteristic can be automatically selected to produce sufficient torque in working conditions requiring a large torque characteristic, and the engine torque is prevented from using excessive torque under the working conditions requiring a small torque characteristic. The automatic selection of the characteristics prevents unnecessary fuel consumption, as well as the automatic conversion of the engine torque due to changes in the work load and work type at that time without the need for a separate torque conversion switch. This eliminates the need to operate separate torque conversion switches.
However, in work where the low speed range of the engine (eg 1200 RPM or less) is expected, such a complicated mechanism is not necessary. In addition, if the driver accidentally presses the accelerator pedal, it may cause fuel consumption to exceed the appropriate RPM.
SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problem, and an object of the present invention is to provide an engine for construction equipment to solve the problem of excessive use of an accelerator pedal and starting-off for an on-machine load in a low engine speed range. The present invention provides a control system, and more specifically, in the engine low idle, when the driver operates the forward / reverse lever for driving or the hydraulic control lever for working device operation or changes direction. The present invention provides a construction equipment engine control system that actively raises and responds to a load on a machine by preliminarily increasing the engine speed according to a selected switch when operating a steering wheel.
Construction equipment engine control system according to the present invention for solving the above problems, RPM selector for selecting a revolution (rpm); An operation input unit for inputting an operation of construction equipment; A speed controller controlling a speed of an engine driving an operation according to the input operation; And an equipment controller connected to the RPM selector, the operation input unit, and the speed controller, and sensing an input of the operation input unit to control the speed controller to maintain the engine speed at the selected RPM. It is done.
In this case, the RPM selector may be an RPM selection switch or a user interface monitor.
In addition, the range of the RPM may be OFF or 1000 to 1200 RPM.
In addition, the operation input unit may include a hydraulic control level, a steering handle, an electric steering lever and a travel switch, and a forward and reverse gear selector.
According to the present invention, the low idle area of the engine, which is vulnerable to the load, rises to a predetermined engine speed from the operation of each operating device and the engine speed selection switch in the low idle area of the engine. In addition, it prevents excessive acceleration pedal to prevent sudden start-up or start-up off, and prevents unnecessary increase of engine speed, and selector switch is used to select the desired engine speed if necessary to improve fuel economy. do. In addition, the driver can reduce fatigue while driving and work efficiency can be improved.
1 is a block diagram of a construction equipment engine control system according to an embodiment of the present invention.
2 is a block diagram of a construction equipment engine control system according to another embodiment of the present invention.
Hereinafter, with reference to the accompanying drawings will be described in detail a construction equipment engine control system according to a preferred embodiment. In the following description, well-known functions or constructions are not described in detail to avoid unnecessarily obscuring the subject matter of the present invention.
In addition, the size of each component in the drawings may be exaggerated for the sake of explanation and does not mean a size actually applied.
1 is a block diagram of a construction equipment engine control system according to an embodiment of the present invention. Referring to Figure 1, the construction equipment engine control system according to an embodiment of the present invention,
More specifically, the
When the input of the operation is applied to the
Then, the
2 is a block diagram of a construction equipment engine control system according to another embodiment of the present invention. Referring to Fig. 2, a feature of this embodiment is that the
More specifically, this embodiment is similar to the embodiment of Figure 1,
Through this connection, the
The construction machinery engine control system configured as described above solves the problems of excessive use of the accelerator pedal for the load on the equipment in the low idle area and the start-off problem, reducing the fatigue of the driver and improving work efficiency. In the engine low range (Low Idle), the machine operator and the engine actively responds to the load on the machine by pre-raising the engine speed according to the selected switch when operating the gear selector, hydraulic control lever, or steering wheel. It is possible to provide an interlock system of rotational speed.
In the foregoing detailed description of the present invention, specific examples have been described. However, various modifications are possible within the scope of the present invention. The technical spirit of the present invention should not be limited to the above-described embodiments of the present invention, but should be determined by the claims and equivalents thereof.
1: Hydraulic Control Lever
2, 13: pressure sensor
3: equipment controller
4: RPM selector switch
5: Engine Low Idle Speed Controller (
6; Gear selector
7: Transmission controller
8: hydraulic main P / P
9: steering wheel
10: monitor with user interface
11: electric steering lever and drive switch
100: RPM selector
200: operation input unit
Claims (4)
An operation input unit for inputting an operation of construction equipment;
A speed controller controlling a speed of an engine driving an operation according to the input operation; And
An equipment controller connected to the RPM selector, the operation input unit and the speed controller, and configured to sense an input of the operation input unit to control the speed controller to maintain the engine speed at the selected RPM; Construction equipment engine control system comprising a.
The RPM selector is a construction equipment engine control system, characterized in that the RPM selection switch or a user interface monitor.
The range of the RPM is off (OFF) or construction equipment engine control system, characterized in that 1000 to 1200 RPM.
The operation input unit,
A construction engine control system comprising a hydraulic control lever, a steering handle, an electric steering lever and a travel switch and a forward and reverse gear selector.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020110123426A KR20130057615A (en) | 2011-11-24 | 2011-11-24 | Engine control system for construction equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020110123426A KR20130057615A (en) | 2011-11-24 | 2011-11-24 | Engine control system for construction equipment |
Publications (1)
Publication Number | Publication Date |
---|---|
KR20130057615A true KR20130057615A (en) | 2013-06-03 |
Family
ID=48857154
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020110123426A KR20130057615A (en) | 2011-11-24 | 2011-11-24 | Engine control system for construction equipment |
Country Status (1)
Country | Link |
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KR (1) | KR20130057615A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016153089A1 (en) * | 2015-03-23 | 2016-09-29 | 볼보 컨스트럭션 이큅먼트 에이비 | Engine idling control system of construction machine |
KR101967460B1 (en) * | 2017-12-14 | 2019-08-13 | 현대오트론 주식회사 | Engine Idling Control Method For Creep Driving, And Engine Operated Thereby |
-
2011
- 2011-11-24 KR KR1020110123426A patent/KR20130057615A/en not_active Application Discontinuation
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016153089A1 (en) * | 2015-03-23 | 2016-09-29 | 볼보 컨스트럭션 이큅먼트 에이비 | Engine idling control system of construction machine |
US10443522B2 (en) | 2015-03-23 | 2019-10-15 | Volvo Construction Equipment Ab | Engine idling control system of construction machine |
KR101967460B1 (en) * | 2017-12-14 | 2019-08-13 | 현대오트론 주식회사 | Engine Idling Control Method For Creep Driving, And Engine Operated Thereby |
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