CN114991970A - Intelligent control method for engine throttle of transshipment crane - Google Patents
Intelligent control method for engine throttle of transshipment crane Download PDFInfo
- Publication number
- CN114991970A CN114991970A CN202210535821.XA CN202210535821A CN114991970A CN 114991970 A CN114991970 A CN 114991970A CN 202210535821 A CN202210535821 A CN 202210535821A CN 114991970 A CN114991970 A CN 114991970A
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- Prior art keywords
- engine
- plc
- switching value
- signal
- crane
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- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000010586 diagram Methods 0.000 description 6
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- 230000003028 elevating effect Effects 0.000 description 2
- 238000010009 beating Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Images
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
- F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
- F02D11/06—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance
- F02D11/10—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type
- F02D11/105—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type characterised by the function converting demand to actuation, e.g. a map indicating relations between an accelerator pedal position and throttle valve opening or target engine torque
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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
- F02D29/02—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 peculiar to engines driving vehicles; peculiar to engines driving variable pitch propellers
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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
- F02D31/007—Electric control of rotation speed controlling fuel supply
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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
- F02D31/007—Electric control of rotation speed controlling fuel supply
- F02D31/008—Electric control of rotation speed controlling fuel supply for idle speed control
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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
- F02D41/08—Introducing corrections for particular operating conditions for idling
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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
- F02D41/08—Introducing corrections for particular operating conditions for idling
- F02D41/083—Introducing corrections for particular operating conditions for idling taking into account engine load variation, e.g. air-conditionning
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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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 invention discloses an engine throttle intelligent control method of a transshipment crane, which comprises the steps that a PLC (programmable logic controller) collects any one of an atmospheric sensor signal and a switching value signal, the rotating speed of an engine is calculated according to the collected atmospheric sensor signal or the switching value signal, and a throttle working signal corresponding to the rotating speed of the engine is sent to an engine control unit ECU (electronic control unit) by utilizing a CAN (controller area network) bus, so that the ECU controls the rotating speed of the engine to operate according to the throttle working signal. The PLC intelligently distinguishes various working conditions with specific accelerator requirements and carries out intelligent accelerator control; according to different working condition requirements, the idling speed of the engine is automatically increased, idling stop can be avoided, and working efficiency is improved under certain specific working conditions.
Description
Technical Field
The invention relates to the field of mechanical equipment, in particular to an intelligent control method for an engine throttle of a transshipment crane.
Background
At present, the idle speed is the most common operating mode of engine during operation, and the idle speed is too high can cause the problem of oil consumption, emission and NVH, and the idle speed crosses lowly can cause engine shake, NVH scheduling problem, and the hoist need adjust engine idle speed when other specific operating modes, avoids the engine idling to flame out to influence work efficiency.
In the prior art, the rotating speed of the engine throttle can only be adjusted by manually judging the corresponding working condition, and the intelligent control of the rotating speed of the engine throttle can not be realized according to the actual working condition requirement.
Disclosure of Invention
The invention aims to solve the technical problem of realizing the intelligent control of the rotating speed of the accelerator of the engine according to the actual working condition requirement.
In order to solve the technical problems, the invention adopts the following technical scheme: an intelligent control method for an engine throttle of a transshipment crane comprises the following steps:
the PLC collects any one path of signals in the atmospheric sensor signals and the switching value signals, calculates the rotating speed of the engine according to the collected atmospheric sensor signals or the switching value signals, and sends throttle working signals corresponding to the rotating speed of the engine to an engine control unit ECU through a bus so that the ECU controls the rotating speed of the engine to operate according to the throttle working signals.
As a further improvement of the above technical solution:
the PLC collects the switching value signals and comprises the following steps:
the PLC collects a switching value signal for controlling the starting of the crane air conditioner;
the PLC collects switching value signals for controlling the extension and retraction of the crane supporting legs;
the PLC controller collects switching value signals for controlling the counterweight operation of the crane.
The atmospheric sensor signal is analog signal, and analog signal's value range is 4 ~ 20mA or 0 ~ 5V, the atmospheric sensor signal gets into PLC analog port and handles into altitude through the PLC controller, and the engine idle speed is cascaded increase and increases to appointed rotational speed along with altitude.
The switching value signal for controlling the space to be opened is a digital signal, the switching value signal is connected to a PLC switching value input port, and when the PLC judges that the air conditioner is opened, the engine idling is automatically increased to a corresponding rotating speed.
The support leg telescopic control system is characterized in that a switching value signal for controlling the support leg to stretch is a digital signal, the switching value signal is connected to a PLC switching value input port, and when a PLC judges the support leg telescopic operation, the engine is automatically lifted to a corresponding rotating speed in an idling mode.
The switching value signal for controlling the crane counterweight operation is a digital signal, the switching value signal is accessed to the PLC switching value input port, and when the PLC judges the crane counterweight operation, the idling speed of the engine is automatically increased to the corresponding rotating speed.
And the PLC sends the throttle working signal to a computer display screen through a bus.
Compared with the prior art, the invention has the advantages that:
1. the PLC controller of the invention intelligently distinguishes various working conditions with specific accelerator requirements and carries out intelligent accelerator control.
2. According to different working condition requirements, the idling speed of the engine is automatically increased, idling stop can be avoided, and working efficiency is improved under certain specific working conditions.
Drawings
FIG. 1 is a schematic diagram of a prior art accelerator pedal controlled engine;
FIG. 2 is a diagram illustrating the principle of controlling the air pressure or temperature operation mode and signal acquisition;
FIG. 3 is a diagram showing the control principle and signal acquisition of the operation mode of the leg according to the present embodiment;
FIG. 4 is a diagram showing the principle of control of the counterweight operation mode and signal acquisition according to the present embodiment;
FIG. 5 is a diagram illustrating the controller of the present embodiment determining the accelerator operation mode;
FIG. 6 is a flow control logic diagram under the plateau operating mode in accordance with an embodiment of the present invention.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
As shown in fig. 1 to 6, the method for intelligently controlling the engine throttle of the transshipment crane of the present embodiment includes:
the PLC collects any one path of signals in the atmospheric sensor signals and the switching value signals, calculates the rotating speed of the engine according to the collected atmospheric sensor signals or the switching value signals, and sends throttle working signals corresponding to the rotating speed of the engine to the ECU (electronic control unit) by utilizing the bus so that the ECU controls the rotating speed of the engine to operate according to the throttle working signals.
In the existing crane mechanical equipment, the rotating speed control of an engine is usually controlled by a foot accelerator, the opening degree of the accelerator pedal is acquired by a PLC (programmable logic controller), and a bus command is sent according to the J1939 bus communication protocol requirement to control the actual rotating speed of the engine. The power supply of the accelerator pedal is positively connected with the 5V voltage stabilizing module, the negative electrode of the power supply is connected with the negative electrode of a battery, and the opening signal of the accelerator pedal is a voltage signal of 0-5V, wherein 0V corresponds to the minimum opening of the accelerator, and 5V corresponds to the maximum opening of the accelerator; and (3) accessing an accelerator pedal opening signal line to a PLC (programmable logic controller) simulation input port, converting the accelerator pedal simulation signal into CAN (controller area network) message bus data according to the requirements of the idle speed and the maximum rotating speed of the crane engine, and sending the CAN message bus data to an engine ECU (electronic control unit) according to the J1939 communication requirement. Taking a certain crane as an example, the idling speed of the engine is 800 revolutions, the maximum rotating speed is 2000 revolutions, when the PLC detects that the opening degree of the accelerator is minimum, the bus data sent to the ECU is 800 × 8, when the PLC detects that the opening degree of the accelerator is maximum, the bus data sent to the ECU is 2000 × 8, and the specific bus message format requirement is required to follow the J1939 communication protocol. In the embodiment, the air sensor and the control switch are arranged, the PLC collects any one of the air sensor signal and the switching value signal, analyzes and calculates the collected signal, and transmits the calculation result to the ECU module for controlling the rotating speed of the engine.
In this embodiment, the PLC collecting the switching value signal includes:
the PLC collects a switching value signal for controlling the starting of the crane air conditioner;
the PLC collects switching value signals for controlling the extension and retraction of the crane supporting legs;
the PLC controller collects switching value signals for controlling the counterweight operation of the crane.
In this embodiment, the atmospheric sensor signal is analog signal, and analog signal's value range is 4 ~ 20mA or 0 ~ 5V, and the atmospheric sensor signal gets into PLC analog port and handles into the altitude through the PLC controller, and the engine idle speed is cascaded increase along with the altitude and increases to appointed rotational speed.
When the transshipment crane is constructed on a plateau, the idling accelerator of the engine needs to be lifted by 100r/min, otherwise, flameout can occur. Adopt atmospheric pressure sensor to detect altitude, because atmospheric pressure can reduce along with altitude's increase, general atmospheric pressure sensor also is analog signal, 4 ~ 20mA or 0 ~ 5V voltage signal, atmospheric pressure sensor signal gets into PLC simulation port and handles into altitude through the PLC controller, when PLC detected current altitude and is greater than a definite value, promotes engine idle speed 100r/min automatically. Taking a certain crane as an example, the idling speed is 800 revolutions, and when the altitude is detected to be 1000 meters, the idling speed of the engine is automatically increased to 900 r/min. Namely, when idling, 900 × 8 data is sent to the engine ECU through the bus, and the idling speed of the engine is automatically raised to 900 r/min.
In this embodiment, the switching value signal for controlling the space to be opened is a digital signal, the switching value signal is connected to the PLC switching value input port, and when the PLC controller determines that the air conditioner is opened, the engine is automatically raised to a corresponding rotation speed at an idle speed.
When the transshipment crane works, if the air temperature is cold or hot, the aircrew can turn on the cold air conditioner or the warm air conditioner, at the moment, the engine not only maintains the normal hoisting operation, but also needs to maintain the normal work of the air conditioner, at the moment, the idling speed of the engine needs to be increased by 100r/min, otherwise, the engine can be flamed out. A relay is added at an air conditioner switch, an air conditioner starting signal is connected to a PLC switching value input port, when the PLC judges that the current crane air conditioner is started, the idling speed of an engine is automatically increased by 100r/min, namely 900 x 8 data is sent to an engine ECU through a bus when the current crane air conditioner is in idling, and the idling speed of the engine is automatically increased to 900 r/min.
In this embodiment, the switching value signal for controlling the extension and retraction of the support leg is a digital signal, the switching value signal is connected to the PLC switching value input port, and when the PLC controller determines that the support leg is in the extension and retraction operation, the engine is automatically lifted to the corresponding rotation speed at the idle speed.
The landing leg needs to be beaten earlier before the elevating crane normally hangs and carries out, under general condition, the engine starts the back aircraft crew and carries out the landing leg operation of stretching out and drawing back through handheld remote controller getting off the car, and accelerator pedal aperture is minimum this moment, and the engine is the idle speed, and the idle speed is beaten the landing leg and can be influenced the flexible efficiency of landing leg to a certain elevating crane is taken as the example, generally promotes the engine speed to 1600r/min when beating the landing leg. And when the PLC judges that the current transshipment crane needs to carry out the telescopic operation of the supporting legs, the idling speed of the engine is automatically increased to 1600 r/min.
In this embodiment, the switching value signal for controlling the crane counterweight operation is a digital signal, the switching value signal is connected to the PLC switching value input port, and when the PLC controller determines the crane counterweight operation, the engine is automatically raised to the corresponding rotation speed at the idle speed.
Before some hoisting operation is carried out on the transshipment crane, a movable counterweight needs to be added or reduced, in general, the disassembly and assembly operation of the movable counterweight is carried out on a vehicle by a hand-held remote controller after an engine is started, the opening degree of an accelerator pedal is minimum, the engine is in an idle speed, the efficiency is influenced by the operation of the movable counterweight in the idle speed, and by taking a certain transshipment crane as an example, the rotating speed of the engine is generally increased to 1200r/min during the operation of the movable counterweight. And when the PLC judges that the current crane needs to carry out movable counterweight operation, the idling speed of the engine is automatically increased to 1200 r/min.
In this embodiment, the PLC controller sends throttle working signal to the computer display screen through the bus.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make numerous possible variations and modifications to the present invention, or modify equivalent embodiments to equivalent variations, without departing from the scope of the invention, using the teachings disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should fall within the protection scope of the technical scheme of the present invention, unless the technical spirit of the present invention departs from the content of the technical scheme of the present invention.
Claims (7)
1. An engine throttle intelligent control method of a transshipment crane is characterized by comprising the following steps:
the PLC collects any one path of signals in the atmospheric sensor signals and the switching value signals, calculates the rotating speed of the engine according to the collected atmospheric sensor signals or the switching value signals, and sends throttle working signals corresponding to the rotating speed of the engine to an engine control unit ECU through a bus so that the ECU controls the rotating speed of the engine to operate according to the throttle working signals.
2. The intelligent engine throttle control method of the transshipment crane as claimed in claim 1, wherein: the PLC collects the switching value signals and comprises the following steps:
the PLC collects a switching value signal for controlling the starting of the crane air conditioner;
the PLC collects switching value signals for controlling the extension and retraction of the crane supporting legs;
the PLC controller collects switching value signals for controlling the counterweight operation of the crane.
3. The intelligent engine throttle control method of the transshipment crane as claimed in claim 1, wherein: the atmospheric sensor signal is analog signal, and analog signal's value range is 4 ~ 20mA or 0 ~ 5V, the atmospheric sensor signal gets into PLC analog port and handles into the altitude through the PLC controller, and the engine idle speed is cascaded increase and increases to appointed rotational speed along with altitude.
4. The intelligent engine throttle control method of the transshipment crane as claimed in claim 2, wherein: the switching value signal for controlling the space to be opened is a digital signal, the switching value signal is connected to a PLC switching value input port, and when the PLC judges that the air conditioner is opened, the engine idling is automatically increased to a corresponding rotating speed.
5. The intelligent control method for the engine throttle of the transshipment crane as claimed in claim 2, wherein: the support leg telescopic control system is characterized in that a switching value signal for controlling the support leg to stretch is a digital signal, the switching value signal is connected to a PLC switching value input port, and when a PLC judges the support leg telescopic operation, the engine is automatically lifted to a corresponding rotating speed in an idling mode.
6. The intelligent engine throttle control method of the transshipment crane as claimed in claim 2, wherein: the switching value signal for controlling the crane counterweight operation is a digital signal, the switching value signal is accessed to the PLC switching value input port, and when the PLC judges the crane counterweight operation, the idling speed of the engine is automatically increased to the corresponding rotating speed.
7. The intelligent control method for the engine throttle of the transshipment crane as claimed in claim 1, wherein: and the PLC sends the throttle working signal to a computer display screen through a bus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210535821.XA CN114991970A (en) | 2022-05-17 | 2022-05-17 | Intelligent control method for engine throttle of transshipment crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210535821.XA CN114991970A (en) | 2022-05-17 | 2022-05-17 | Intelligent control method for engine throttle of transshipment crane |
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| Publication Number | Publication Date |
|---|---|
| CN114991970A true CN114991970A (en) | 2022-09-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210535821.XA Pending CN114991970A (en) | 2022-05-17 | 2022-05-17 | Intelligent control method for engine throttle of transshipment crane |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63167053A (en) * | 1986-12-28 | 1988-07-11 | Daihatsu Motor Co Ltd | Throttle opening control device for engine |
| JPH01149543U (en) * | 1988-04-06 | 1989-10-17 | ||
| JPH0742584A (en) * | 1993-07-31 | 1995-02-10 | Suzuki Motor Corp | Starting control device for internal combustion engine |
| JPH1178511A (en) * | 1997-09-08 | 1999-03-23 | Nissan Diesel Motor Co Ltd | Engine control device for vehicle |
| JP2007224763A (en) * | 2006-02-22 | 2007-09-06 | Autech Japan Inc | Engine control device |
| CN203006772U (en) * | 2012-12-17 | 2013-06-19 | 三一重工股份有限公司 | Auto crane and leg operation control system of auto crane |
| CN109306908A (en) * | 2018-09-26 | 2019-02-05 | 潍柴动力股份有限公司 | Long-range throttle idle speed adjustment method, system and controller |
-
2022
- 2022-05-17 CN CN202210535821.XA patent/CN114991970A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63167053A (en) * | 1986-12-28 | 1988-07-11 | Daihatsu Motor Co Ltd | Throttle opening control device for engine |
| JPH01149543U (en) * | 1988-04-06 | 1989-10-17 | ||
| JPH0742584A (en) * | 1993-07-31 | 1995-02-10 | Suzuki Motor Corp | Starting control device for internal combustion engine |
| JPH1178511A (en) * | 1997-09-08 | 1999-03-23 | Nissan Diesel Motor Co Ltd | Engine control device for vehicle |
| JP2007224763A (en) * | 2006-02-22 | 2007-09-06 | Autech Japan Inc | Engine control device |
| CN203006772U (en) * | 2012-12-17 | 2013-06-19 | 三一重工股份有限公司 | Auto crane and leg operation control system of auto crane |
| CN109306908A (en) * | 2018-09-26 | 2019-02-05 | 潍柴动力股份有限公司 | Long-range throttle idle speed adjustment method, system and controller |
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Application publication date: 20220902 |
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