CN111520246A - High-pressure common rail fuel injection system of coal mine explosion-proof diesel engine - Google Patents

High-pressure common rail fuel injection system of coal mine explosion-proof diesel engine Download PDF

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Publication number
CN111520246A
CN111520246A CN202010396803.9A CN202010396803A CN111520246A CN 111520246 A CN111520246 A CN 111520246A CN 202010396803 A CN202010396803 A CN 202010396803A CN 111520246 A CN111520246 A CN 111520246A
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CN
China
Prior art keywords
fuel injection
engine
explosion
proof
sensor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010396803.9A
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Chinese (zh)
Inventor
焦召明
焦显阳
韩晓强
张迈
李家慧
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LAIZHOU YATONG HEAVY EQUIPMENT CO Ltd
Original Assignee
LAIZHOU YATONG HEAVY EQUIPMENT CO Ltd
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Priority to CN202010396803.9A priority Critical patent/CN111520246A/en
Publication of CN111520246A publication Critical patent/CN111520246A/en
Pending legal-status Critical Current

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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
    • F02D41/30—Controlling fuel injection
    • F02D41/38—Controlling fuel injection of the high pressure type
    • F02D41/3809—Common rail control systems
    • F02D41/3827—Common rail control systems for diesel engines
    • 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
    • F02D41/22—Safety or indicating devices for abnormal conditions
    • 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
    • F02D41/30—Controlling fuel injection
    • F02D41/38—Controlling fuel injection of the high pressure type
    • F02D41/3809—Common rail control systems
    • F02D41/3836—Controlling the fuel pressure
    • 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
    • F02D41/30—Controlling fuel injection
    • F02D41/38—Controlling fuel injection of the high pressure type
    • F02D41/40—Controlling fuel injection of the high pressure type with means for controlling injection timing or duration
    • 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
    • F02D41/22—Safety or indicating devices for abnormal conditions
    • F02D2041/228—Warning displays
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2200/00—Input parameters for engine control
    • F02D2200/02—Input parameters for engine control the parameters being related to the engine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2200/00—Input parameters for engine control
    • F02D2200/02—Input parameters for engine control the parameters being related to the engine
    • F02D2200/024—Fluid pressure of lubricating oil or working fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2200/00—Input parameters for engine control
    • F02D2200/02—Input parameters for engine control the parameters being related to the engine
    • F02D2200/04—Engine intake system parameters
    • F02D2200/0406—Intake manifold pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2200/00—Input parameters for engine control
    • F02D2200/02—Input parameters for engine control the parameters being related to the engine
    • F02D2200/04—Engine intake system parameters
    • F02D2200/0414—Air temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2200/00—Input parameters for engine control
    • F02D2200/02—Input parameters for engine control the parameters being related to the engine
    • F02D2200/06—Fuel or fuel supply system parameters
    • F02D2200/0602—Fuel pressure
    • 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

Abstract

The invention discloses a high-pressure common rail fuel injection system of an explosion-proof diesel engine for a coal mine, which relates to the field of coal mine machinery and comprises a fuel injection control module, a power supply module, a display module and a peripheral electrical appliance module; the fuel injection control module comprises an engine electronic control unit and is used for accurately driving the oil injector and the oil metering valve to act according to various indexes and sensor parameters of the engine and the intention of a driver, and controlling accurate common rail pressure, oil injection time and oil injection quantity in real time, so that the engine generates reasonable driving power and torque and generates lower emission pollutants, the optimal control of oil injection timing, oil injection quantity and oil injection speed is realized, and the technical effects of an efficient, clean and low-noise combustion process of the diesel engine are realized.

Description

High-pressure common rail fuel injection system of coal mine explosion-proof diesel engine
Technical Field
The invention relates to the field of coal mine machinery, in particular to a high-pressure common rail fuel injection system of an explosion-proof diesel engine for a coal mine.
Background
A high-pressure common rail fuel injection system of an underground explosion-proof diesel engine of a coal mine is used for the underground explosion-proof diesel engine of the coal mine. At present, in China, a plurality of coal mines are available, roadway construction and coal excavation and mining cannot be carried out without an auxiliary transport vehicle, but the diesel engine of the conventional auxiliary transport vehicle is mainly a mechanical oil supply system taking a mechanical oil injection pump as power, so that the huge conventional mechanical oil injection diesel engine has a barrier effect on resource saving and the physical health of underground personnel. Under the situation, an energy-saving and environment-friendly diesel engine is urgently found, and the high-pressure common rail fuel injection technology has obvious superiority in both emission and dynamic performance. However, at present, the oil injection technology is applied to the coal mine vehicle technology in China and has short plates.
Therefore, the company provides a high-pressure common rail fuel injection system of an explosion-proof diesel engine in a coal mine. Therefore, the oil injection and power output of the engine are reasonably controlled, and the economic performance and the emission performance are improved.
Disclosure of Invention
The invention aims to provide a high-pressure common rail fuel injection system of an explosion-proof diesel engine for a coal mine, which realizes the optimal control of fuel injection timing, fuel injection quantity and fuel injection speed, thereby realizing the technical effects of high-efficiency, clean and low-noise combustion process of the diesel engine.
In order to realize the technical effect, the invention discloses a high-pressure common rail fuel injection system of an explosion-proof diesel engine for a coal mine, which is characterized in that: the fuel injection control module is connected with the power supply module;
the fuel injection control module comprises an engine electronic control unit and is used for accurately driving the oil injector and the oil metering valve to act according to various indexes and sensor parameters of the engine and the intention of a driver, and controlling the accurate common rail pressure, oil injection time and oil injection quantity in real time, so that the engine generates reasonable driving power and torque and generates lower emission pollutants;
the power supply module comprises a standby power supply box and an intrinsic safety power supply module and supplies power to the fuel injection control module, the display module and the peripheral electrical module;
the display module is used for displaying the parameter state of the engine and the information acquired by the sensor of the fuel injection control module in real time, and displaying a standard J1939 fault code generated in the running process of the engine; the real-time display of the engine state is convenient for a driver to fully master the health state of the engine, and the standard fault code is defined aiming at each detailed fault, so that the driver of the locomotive can be helped to quickly locate a fault point, maintenance personnel can be quickly helped to remove the fault, and the service efficiency of auxiliary transport vehicles is improved;
the peripheral electrical module comprises a peripheral input sensor and an actuator.
Furthermore, an isolation grid is arranged in the fuel injection control module, and the isolation grid converts an intrinsic safety type sensor and an intrinsic safety CAN bus signal of the engine into an unsafe signal and an unsafe CAN bus signal input by a sensor of an engine electronic control unit through photoelectric coupling.
Further, wherein the fuel injection control module includes explosion-proof control box and sets up in inside through-wall terminal, explosion-proof control box keeps apart high-voltage and low-voltage line through high-low pressure wiring chamber, and through, through-wall terminal, realizes the connection of high-low pressure chamber cable to through the form of the explosion-proof faying face of coal ampere standard, through the bolt fastening, place the electrical component of non-ampere in explosion-proof box, reach the coal mine safety requirement.
Furthermore, the explosion-proof control box is also provided with an explosion-proof box cover plate, the electronic control unit of the engine is fixed on the explosion-proof box cover plate, and the electric elements are connected to the wiring terminal in an explosion-proof compression nut mode and led out to each sensor and the actuator.
Further, the power supply module provides an unsafe power supply for a processor, an actuator and a display module in the fuel injection control module, and provides an intrinsic safety power supply for a peripheral intrinsic safety sensor.
Furthermore, the display module comprises a programmable display, and realizes data communication with an electronic control unit ECU of the engine through a CAN bus communication protocol SAEJ1939 standard protocol.
Furthermore, the peripheral input sensors comprise an air inlet temperature pressure sensor, a cooling liquid temperature sensor, a camshaft position sensor, a crankshaft position sensor, an engine oil pressure sensor, an oil supply pressure sensor and an accelerator position sensor, and the sensors are all intrinsically safe sensors and are suitable for being used in the underground environment of a coal mine.
Furthermore, the actuator comprises an oil sprayer and an oil metering valve, and the actuator completes explosion-proof treatment on components in a sealed explosion-proof mode, so that the actuator can safely operate in a dangerous environment in a coal mine.
The invention has the beneficial effects that:
the injection pressure of the common rail system is irrelevant to the rotating speed of the engine, so that the low-speed performance of the engine is improved, the injection pressure is adjusted by an oil metering valve, flexible control is realized through a PID control strategy and PWM pulse output control and relevant pulse spectrums of tests, accurate oil injection and accurate oil injection quantity control are achieved, and through an intrinsic safety type CAN instrument for coal mines, a driver CAN see various data of the engine in real time, timely prevent faults and process relevant faults of prompts, and convenience in vehicle maintenance is improved. The ECU achieves multi-path control of dynamic property, economical efficiency and environmental protection property through pressure and time control, not only has higher power than mechanical oil injection, but also has low fuel consumption rate and emission performance meeting the emission standard of the non-road state III, improves the environmental quality of the underground coal mine roadway, and reduces the harm to coal mine workers.
Drawings
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 description of the embodiments or the prior art will be briefly described below. It is obvious that the drawings in the following description are some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
Fig. 1 is a general structural view of the present invention.
Fig. 2 is a structural view of an explosion-proof control box of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
the utility model provides a colliery is explosion-proof diesel engine high pressure common rail fuel injection system in pit which characterized in that: the fuel injection control device comprises a fuel injection control module 1, a power supply module 2, a display module 3 and a peripheral electrical appliance module;
the fuel injection control module comprises an engine electronic control unit 11, and is used for accurately driving an oil injector and an oil metering valve to act according to various indexes and sensor parameters of the engine and the intention of a driver, and controlling accurate common rail pressure, oil injection time and oil injection quantity in real time, so that the engine generates reasonable driving power and torque and generates lower emission pollutants;
the power supply module comprises a standby power supply box and an intrinsic safety power supply module and supplies power to the fuel injection control module, the display module and the peripheral electrical module;
the display module is used for displaying the parameter state of the engine and the information acquired by the sensor of the fuel injection control module in real time, and displaying a standard J1939 fault code generated in the running process of the engine; the real-time display of the engine state is convenient for a driver to fully master the health state of the engine, and the standard fault code is defined aiming at each detailed fault, so that the driver of the locomotive can be helped to quickly locate a fault point, maintenance personnel can be quickly helped to remove the fault, and the service efficiency of auxiliary transport vehicles is improved;
the peripheral electrical module comprises a peripheral input sensor and an actuator.
Example two:
the utility model provides a colliery is explosion-proof diesel engine high pressure common rail fuel injection system in pit which characterized in that: the fuel injection control device comprises a fuel injection control module 1, a power supply module 2, a display module 3 and a peripheral electrical appliance module;
the fuel injection control module comprises an engine electronic control unit 11, and is used for accurately driving an oil injector and an oil metering valve to act according to various indexes and sensor parameters of the engine and the intention of a driver, and controlling accurate common rail pressure, oil injection time and oil injection quantity in real time, so that the engine generates reasonable driving power and torque and generates lower emission pollutants;
the power supply module comprises a standby power supply box and an intrinsic safety power supply module and supplies power to the fuel injection control module, the display module and the peripheral electrical module;
the display module is used for displaying the parameter state of the engine and the information acquired by the sensor of the fuel injection control module in real time, and displaying a standard J1939 fault code generated in the running process of the engine; the real-time display of the engine state is convenient for a driver to fully master the health state of the engine, and the standard fault code is defined aiming at each detailed fault, so that the driver of the locomotive can be helped to quickly locate a fault point, maintenance personnel can be quickly helped to remove the fault, and the service efficiency of auxiliary transport vehicles is improved;
the peripheral electrical module comprises a peripheral input sensor and an actuator.
The fuel injection control module is internally provided with an isolation grid 12, and the isolation grid converts an intrinsic safety type sensor and an intrinsic safety CAN bus signal of an engine into an unsafe signal and an unsafe CAN bus signal input by a sensor of an engine electronic control unit through photoelectric coupling. The fuel injection control module comprises an explosion-proof control box 13 and a wall-penetrating terminal 14 arranged inside the explosion-proof control box, wherein the explosion-proof control box isolates a high-voltage line from a low-voltage line through a high-voltage line cavity and a low-voltage line cavity, the high-voltage line and the low-voltage line are connected through the wall-penetrating terminal, the high-voltage line and the low-voltage line are connected through a high-voltage line and a low-voltage line, and an unsafe electric part is placed in the explosion-proof box through bolt fixation through an explosion-proof joint surface form of. The explosion-proof control box is further provided with an explosion-proof box cover plate 15, the electronic control unit of the engine is fixed on the explosion-proof box cover plate, and the electric elements are connected to the wiring terminal 16 in an explosion-proof compression nut mode and led out to each sensor and each actuator.
The power supply module provides an unsafe power supply for a processor, an actuator and a display module in the fuel injection control module and provides an intrinsic safety power supply for a peripheral intrinsic safety sensor. The display module comprises a programmable display, and realizes data communication with an electronic control unit ECU of the engine through a CAN bus communication protocol SAE J1939 standard protocol. The peripheral input sensor comprises an air inlet temperature and pressure sensor, a coolant temperature sensor, a camshaft position sensor, a crankshaft position sensor, an engine oil pressure sensor, an oil supply pressure sensor and an accelerator position sensor, and the sensors are all intrinsically safe sensors and are suitable for being used in the underground environment of a coal mine. The actuator comprises an oil sprayer and an oil mass metering valve, and the actuator completes explosion-proof treatment on components in a cast explosion-proof mode, so that the actuators can safely operate in a dangerous environment in a coal mine.
The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention by those skilled in the art without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims (8)

1. The utility model provides an explosion-proof diesel engine high pressure common rail fuel injection system in colliery which characterized in that: the fuel injection control device comprises a fuel injection control module (1), a power supply module (2), a display module (3) and a peripheral electrical appliance module;
the fuel injection control module comprises an engine electronic control unit (11) and is used for accurately driving an oil injector and an oil metering valve to act according to various indexes and sensor parameters of the engine and the intention of a driver, and controlling accurate common rail pressure, oil injection time and oil injection quantity in real time, so that the engine generates reasonable driving power and torque and generates lower emission pollutants;
the power supply module comprises a standby power supply box and an intrinsic safety power supply module and supplies power to the fuel injection control module, the display module and the peripheral electrical module;
the display module is used for displaying the parameter state of the engine and the information acquired by the sensor of the fuel injection control module in real time, and displaying a standard J1939 fault code generated in the running process of the engine; the real-time display of the engine state is convenient for a driver to fully master the health state of the engine, and the standard fault code is defined aiming at each detailed fault, so that the driver of the locomotive can be helped to quickly locate a fault point, maintenance personnel can be quickly helped to remove the fault, and the service efficiency of auxiliary transport vehicles is improved;
the peripheral electrical module comprises a peripheral input sensor and an actuator.
2. The high-pressure common rail fuel injection system of the coal mine explosion-proof diesel engine as claimed in claim 1, wherein: an isolation grid (12) is arranged in the fuel injection control module, and the isolation grid converts an intrinsic safety type sensor and an intrinsic safety CAN bus signal of the engine into an unsafe signal and an unsafe CAN bus signal input by a sensor of an engine electronic control unit through photoelectric coupling.
3. The high-pressure common rail fuel injection system of the coal mine explosion-proof diesel engine as claimed in claim 1, wherein: the fuel injection control module comprises an explosion-proof control box (13) and a wall penetrating terminal (14) arranged inside the explosion-proof control box, wherein the explosion-proof control box isolates a high-voltage line from a low-voltage line through a high-voltage line pressing cavity, and the high-voltage line and the low-voltage line are connected through the wall penetrating terminal, so that the high-voltage line and the low-voltage line are connected through a high-voltage cable and a low-voltage cable, and an unsafe electric part is placed in the explosion-proof box through bolt fixation in the form of an explosion-proof joint surface of a.
4. The high-pressure common rail fuel injection system of the coal mine explosion-proof diesel engine, as recited in claim 3, is characterized in that: the explosion-proof control box is also provided with an explosion-proof box cover plate (15), the electronic control unit of the engine is fixed on the explosion-proof box cover plate, and the electric elements are connected to the wiring terminal (16) in an explosion-proof compression nut mode and led out to each sensor and actuator.
5. The high-pressure common rail fuel injection system of the coal mine explosion-proof diesel engine as claimed in claim 1, wherein: the power supply module provides an unsafe power supply for a processor, an actuator and a display module in the fuel injection control module and provides an intrinsic safety power supply for a peripheral intrinsic safety sensor.
6. The high-pressure common rail fuel injection system of the coal mine explosion-proof diesel engine as claimed in claim 1, wherein: the display module comprises a programmable display, and realizes data communication with an Electronic Control Unit (ECU) of the engine through a CAN bus communication protocol SAE J1939 standard protocol.
7. The high-pressure common rail fuel injection system of the coal mine explosion-proof diesel engine as claimed in claim 1, wherein: the peripheral input sensor comprises an air inlet temperature pressure sensor, a cooling liquid temperature sensor, a camshaft position sensor, a crankshaft position sensor, an engine oil pressure sensor, an oil supply pressure sensor and an accelerator position sensor, and the sensors are all intrinsically safe sensors and are suitable for being used in the underground environment of a coal mine.
8. The high-pressure common rail fuel injection system of the coal mine explosion-proof diesel engine as claimed in claim 1, wherein: the actuator comprises an oil sprayer and an oil mass metering valve, and the actuator completes explosion-proof treatment on components in a cast explosion-proof mode, so that the actuator can safely operate in a dangerous environment in a coal mine.
CN202010396803.9A 2020-05-12 2020-05-12 High-pressure common rail fuel injection system of coal mine explosion-proof diesel engine Pending CN111520246A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010396803.9A CN111520246A (en) 2020-05-12 2020-05-12 High-pressure common rail fuel injection system of coal mine explosion-proof diesel engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010396803.9A CN111520246A (en) 2020-05-12 2020-05-12 High-pressure common rail fuel injection system of coal mine explosion-proof diesel engine

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Publication Number Publication Date
CN111520246A true CN111520246A (en) 2020-08-11

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112947361A (en) * 2021-01-29 2021-06-11 河南职业技术学院 Vehicle-mounted emission fault monitoring system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112947361A (en) * 2021-01-29 2021-06-11 河南职业技术学院 Vehicle-mounted emission fault monitoring system

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