CN101666253B - Control device of tail gas treatment in diesel vehicles - Google Patents
Control device of tail gas treatment in diesel vehicles Download PDFInfo
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- CN101666253B CN101666253B CN2009101528983A CN200910152898A CN101666253B CN 101666253 B CN101666253 B CN 101666253B CN 2009101528983 A CN2009101528983 A CN 2009101528983A CN 200910152898 A CN200910152898 A CN 200910152898A CN 101666253 B CN101666253 B CN 101666253B
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- 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
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Abstract
The invention relates to a control device of tail gas treatment in diesel vehicles. The invention comprises a control device, an operating device, an oil pump, an additive pump, a pressure sensor, a temperature sensor and a liquid level sensor, wherein, the casing of the control device is provided with an electrical connector; the casing is internally provided with a microprocessor module, a control device power module, an analog signal conditioning module, a channel switching module, an A/D acquisition module, a switching capacity acquisition module, an oil pump and additive pump control module, a serial port communication module, a storage module, a real-time clock module and a low voltage detection module. The casing of the operating device is provided with a liquid crystal display, an alarm sound withdrawn key, an alarm light withdrawn key, a flipping key and a confirm key; the casing of the operating device is also provided with an environment light intensity detection hole; and the casing is internally provided with an operating device power module, a liquid crystal control module, an environment light intensity detection module, a microprocessor module, a communication module, an alarm output module and a key processing module. The invention is characterized by stable and reliable running, convenient operation, automatic regeneration and the like.
Description
Technical field
The invention belongs to the control technique field, relate to a kind of exhaust gas from diesel vehicle filtrating equipment automatic regeneration control gear, be mainly used in the control of exhaust gas from diesel vehicle after-treatment system, make its efficient stable operation.
Background technique
Diesel engine has incomparable advantage at aspects such as reliability, power character, Economy than petrol engine.Since the nineties in 20th century, diesel engine occupies unique status in automobile industry always.At present, 100% heavy goods vehicles of American-European countries, 90% Light-duty Vehicle adopt diesel engine, and the european diesel car has accounted for 32% of car Annual output, and states such as France, Spain are more up to more than 50%.The development of Chinese market will be similar with Europe.Diesel-oil vehicle will have development faster in following 10 years, and urban taxi will be one of staple market of Chinese diesel-oil vehicle.
Harmful gas HC, the CO discharge amount of diesel engine are generally 1/tens of petrol engine, and the NOX discharge amount of diesel engine is also suitable with petrol engine, but PM (particulate emissions exceeds 50 times more than than petrol engine.PM wherein and polycyclic aromatic hydrocarbon can cause great harm to environment and health, and this is also restricting the main cause of diesel engine at many national developments just, are that current society is based on one of topic of paying close attention to for the processing of tail gas.
The diesel particulates purification technics is divided into two types at present: emission controls by improving combustion and external purification.Emission controls by improving combustion focuses on from improving the burning angle and reduces particle emission, and difficulty is very big because the mode of handling in the machine settles the matter once and for all, and adopting maximum at present is external purification.Diesel particulation external purification technology mainly refers to exhaust aftertreatment, introduces diesel exhaust gas in the special after-treatment device, through discharging after the filter removing harmful components wherein again; Continuous accumulation along with particulate in the filter; The diesel exhaust gas resistance is inevitable to be increased gradually,, can cause the diesel exhaust gas back pressure to increase; Burn deterioration and oil consumption increase, diesel engine work mis-behave.When exhaust back pressure reached certain value, something must be done to remove the soot particle of accumulation, realizes the regeneration of filter.Relatively more commonly used is in fuel oil, to add additive at present; Reduce the burning-point of particle,, improve the temperature of filter simultaneously through in good time it being lighted of control gear to filter upstream space injected fuel; Thereby the particle that is deposited in the filter is caught fire, reach the purpose of removing.
Therefore, the amount that needs a cover control system to come accurate dosing agent, and filter agglomeration of particles amount; And the regeneration temperature of accurate controlled filter body, and the recovery time, accomplish regenerative process; Simultaneously, this device should have mass data storage and data upload function.
Summary of the invention
The object of the invention just provides a kind of easy to operate, control device of tail gas treatment in diesel vehicles that price is low, stable.
The present invention includes control gear, operation equipment, oil pump, additive pump and pressure transducer, temperature transducer, liquid level sensor, additive liquid-level switch.
Described control gear comprises 24 mouthfuls of electric couplers that controller housing and 3 * 8 is arranged; Be provided with microprocessor module, control gear power module, analog signal conditioner module, channel switching module, A/D acquisition module, switch acquisition module and oil pump and additive pump control module, serial communication module, memory module, real-time clock module and low voltage detecting module in the controller housing; Electric coupler provides the electric connection between each module and outside actuator and the sensor; The control gear power module is connected with other modules, is other module for power supply; Memory module, real-time clock module, A/D acquisition module, switch acquisition module, low voltage detecting module, oil pump and additive pump control module are connected with microprocessor module; Control gear power module, analog signal conditioner module, switch acquisition module, oil pump and additive pump control module, serial communication module are connected with electric coupler; Serial communication module and microprocessor module interconnection; Pressure transducer, temperature transducer, liquid level sensor all are connected with A/D acquisition module signal, and the additive liquid-level switch is connected with the switch acquisition module by signal, and oil pump all is connected with oil pump and additive pump control module signal with additive pump.
Microprocessor module is made up of Freescale MC9S08DZ60 microcontroller and correspondent peripheral circuit thereof;
The control gear power module comprises DC-DC insulating power supply module and LM2576, the LM1117 of DC-DC insulating power supply module and 5-24V of the 5V-5V of parallel connection;
The analog signal conditioner module comprises RC plastic filter circuit and electrostatic protection device, TVS device;
Channel switching module comprises the AQY210S rapid light coupling relay of seven panasonic semiconductor companies;
The A/D acquisition module comprises the high-accuracy and constant potential source REF3125 of TI company, reaches the RC eliminator of series connection successively, instrument amplifier AD623, high-precision AD conversion chip AD7793 and the high-speed figure isolating chip ADuM1301 of ADI company;
The switch acquisition module comprises ESD, TVS pipe and PC817 optocoupler;
Oil pump and additive pump control module comprise the light-coupled isolation chip PC817 of series connection successively and the driving chip BTS442E of company of Infineon;
The serial communication module comprises the ADuM1301 and the MAX13442E chip of series connection;
Memory module adopts the AT45DB16D storage chip of Atmel company;
Real-time clock module adopts the DS1307 real-time timepiece chip of Dallas company;
Low voltage detecting module comprises amplifier LM324 and optocoupler PC817;
The concrete Placement of each module is following in the control gear:
Safety fuse cutout is connected with RC plastic filter circuit, electrostatic protection device in the analog signal conditioner module, electrostatic protection device and piezoresistance parallel connection, and piezoresistance pin 1 is connected with the pin 1 of AQY210S in the channel switching module;
The pin 4 of AQY210S chip 1 and AQY210S chip 2 is connected with the output terminal of RC filtering of passage 1 and passage 2 in the analog signal conditioner module respectively in the channel switching module; The pin 3 of AQY210S chip 1 and AQY210S chip 2 is connected with the input end of RC filtering of passage 1 and passage 2 in the A/D acquisition module respectively, and the pin 2 of AQY210S chip 2 is connected with the pin 47 of microprocessor module; The pin 4 of AQY210S chip 3 and AQY210S chip 4 is connected with the output terminal of RC filtering of passage 3 and passage 4 in the analog signal conditioner module respectively; The pin 3 of AQY210S chip 3 and AQY210S chip 4 is connected with the input end of RC filtering of passage 1 and passage 2 in the A/D acquisition module respectively, and the pin 2 of AQY210S chip 4 is connected with the pin 48 of microprocessor module; The output terminal of the RC filtering of passage 5 is connected in the pin 4 of AQY210S chip 5 and the analog signal conditioner module; The input end of the RC filtering of passage 3 is connected in the pin 3 of AQY210S chip 5 and the A/D acquisition module, and the pin 2 of AQY210S chip 2 is connected with the pin 38 of microprocessor module; The output terminal of the RC filtering of passage 6 is connected in the pin 4 of AQY210S chip 6 and the analog signal conditioner module; The input end of the RC filtering of passage 3 is connected in the pin 3 of AQY210S chip 6 and the A/D acquisition module, and the pin 2 of AQY210S chip 2 is connected with the pin 39 of microprocessor module; The output terminal of the RC filtering of passage 7 is connected in the pin 4 of AQY210S chip 7 and the analog signal conditioner module; The input end of the RC filtering of passage 3 is connected in the pin 3 of AQY210S chip 7 and the A/D acquisition module, and the pin 2 of AQY210S chip 2 is connected with the pin 37 of microprocessor module;
ADuM1301 pin of chip 3,4,5 is connected with the pin 46,45,44 of microprocessor module respectively in the A/D acquisition module;
The pin 1 of the pin 4 of PC817 optocoupler and microprocessor module is connected in the switch acquisition module;
The pin 2 of the pin 2 of PC817 optocoupler 1 and optocoupler 3 is connected with the pin 28,32 of microprocessor module respectively in oil pump and the additive pump control module; The pin 4 of PC817 optocoupler 2 is connected with the pin 31,34 of microprocessor module respectively with the pin 4 of optocoupler 4;
The pin 3,4,5 of ADuM1301 is connected with the pin 17,18,23 of microprocessor module respectively in the serial communication module;
The pin 1,2,4 of AD45DB16 is connected with the pin 14,15,21 of microprocessor module respectively in the memory module;
The pin 6,5 of DS1307 is connected with the pin 19,20 of microprocessor module respectively in the real-time clock module;
The pin 4 of optocoupler PC817 is connected with the pin 36 of microprocessor module in the low voltage detecting module.
Described operation equipment comprises operator housing, and operator housing is provided with that liquid crystal display panel, alarm sound are cancelled key, warning light is cancelled key, upset key and confirmation key, has ambient light intensity detection hole on the shell; Be provided with operation equipment power module, liquid crystal control module, ambient light intensity detection module, micro controller module, communication module, alarm output module in the operator housing, by key processing module; Ambient light intensity detection module position is corresponding with ambient light intensity detection hole, and liquid crystal display panel is connected with liquid crystal control module, and alarm sound is cancelled key, warning light and cancelled key, upset key, confirmation key and all with by key processing module be connected; Ambient light intensity detection module, press key processing module and be connected, as the input control module of micro controller module with micro controller module; Alarm output module, liquid crystal control module are connected with micro controller module, as the output module of micro controller module; Communication module is connected with micro controller module, and each module of operation equipment power module and other is connected, and is other each module for power supply, and communication module is connected with serial communication module in the control gear;
The operation equipment power module comprises DC-DC switching power source chip LM2576HVS-5.0 and anti-reverse diode;
Liquid crystal display panel adopts lattice lcd HG192641-HWL01;
Liquid crystal control module comprises reset circuit and contrast adjustment circuit;
Micro controller module is made up of single-chip microcomputer MC9S08DZ60, reset circuit, crystal oscillating circuit, background debug mode interface, connects according to the chip typical application circuit;
Communication module adopts the MAX13442E chip;
Alarm output module comprises buzzer and light emitting diode.
Described pressure transducer is the pressure transducer of standard signal; Temperature transducer is a K type thermocouple; Liquid level sensor is the liquid level sensor of standard signal, and liquid-level switch is the float-ball type normally closed switch, is connected respectively on the acquisition module input interface of master control controller.
Described Injection Pump jet pressure is greater than 2Mpa, and the flow of additive pump is less than 0.05mL/S, and is connected on the output interface of oil pump driver module.
Diesel engine vent gas treatment device automatic regeneration control system of the present invention has stable and reliable operation, and is easy to operate, characteristics such as automatic regeneration, and simultaneously, good data storage characteristics and data upload function are that the analysis of system provides very big convenience.In addition, the cost performance of system is very high.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is control gear module diagram among the present invention;
Fig. 3 is operation equipment module diagram among the present invention;
Fig. 4 is the overall module diagram of the present invention.
Embodiment
Like Fig. 1～Fig. 4, control device of tail gas treatment in diesel vehicles comprises control gear 1, operation equipment 2, oil pump 7, additive pump 8 and pressure transducer 3, temperature transducer 4, liquid level sensor 5, additive liquid-level switch 6.
Described control gear 1 comprises 24 mouthfuls of electric couplers 12 that controller housing 11 and 3 * 8 is arranged.Be provided with microprocessor module 1-1, control gear power module 1-2, analog signal conditioner module 1-3, channel switching module 1-4, A/D acquisition module 1-5, switch acquisition module 1-6 and oil pump and additive pump control module 1-7, serial communication module 1-8, memory module 1-9, real-time clock module 1-10 and low voltage detecting module 1-11 in the controller housing 11.Electric coupler 12 provides the electric connection between each module and outside actuator and the sensor.Control gear power module 1-2 is connected with other modules, is other module for power supply; Memory module 1-9, real-time clock module 1-10, A/D acquisition module 1-5, switch acquisition module 1-6, low voltage detecting module 1-11, oil pump and additive pump control module 1-7 are connected with microprocessor module 1-1; Control gear power module 1-2, analog signal conditioner module 1-3, switch acquisition module 1-6, oil pump and additive pump control module 1-7, serial communication module 1-8 are connected with electric coupler 12; Serial communication module 1-8 and microprocessor module 1-1 interconnection.Pressure transducer 3, temperature transducer 4, liquid level sensor 5 all are connected with A/D acquisition module 1-5 signal, and additive liquid-level switch 6 is connected with switch acquisition module 1-6 signal.Oil pump 7 all is connected with oil pump and additive pump control module 1-7 signal with additive pump 8.
Microprocessor module 1-1 is made up of Freescale MC9S08DZ60 microcontroller and correspondent peripheral circuit thereof.
Control gear power module 1-2 comprises DC-DC insulating power supply module and LM2576, the LM1117 of DC-DC insulating power supply module and 5-24V of the 5V-5V of parallel connection.
Analog signal conditioner module 1-3 comprises RC plastic filter circuit and electrostatic protection device, TVS device;
Channel switching module 1-4 comprises the AQY210S rapid light coupling relay of seven panasonic semiconductor companies.
A/D acquisition module 1-5 comprises the high-accuracy and constant potential source REF3125 of TI company, reaches the RC eliminator of series connection successively, instrument amplifier AD623, high-precision AD conversion chip AD7793 and the high-speed figure isolating chip ADuM1301 of ADI company.
Switch acquisition module 1-6 comprises ESD, TVS pipe and PC817 optocoupler.
Oil pump and additive pump control module 1-7 comprise the light-coupled isolation chip PC817 of series connection successively and the driving chip BTS442E of company of Infineon.
Serial communication module 1-8 comprises the ADuM1301 and the MAX13442E chip of series connection successively.
Memory module 1-9 is the AT45DB16D storage chip of Atmel company.
Real-time clock module 1-10 adopts the DS1307 real-time timepiece chip of Dallas company.
Low voltage detecting module 1-11 is made up of amplifier LM324 and optocoupler PC817.
The concrete Placement of each module is following in the control gear 1:
Safety fuse cutout is connected with RC plastic filter circuit, electrostatic protection device among the analog signal conditioner module 1-3, electrostatic protection device and piezoresistance parallel connection, and piezoresistance pin 1 is connected with the pin 1 of AQY210S among the channel switching module 1-4.
The pin 4 of AQY210S chip 1 and AQY210S chip 2 is connected with the output terminal of RC filtering of passage 1 and passage 2 among the analog signal conditioner module 1-3 respectively among the channel switching module 1-4; The pin 3 of AQY210S chip 1 and AQY210S chip 2 is connected with the input end of RC filtering of passage 1 and passage 2 among the A/D acquisition module 1-5 respectively, and the pin 2 of AQY210S chip 2 is connected with the pin 47 of microprocessor module 1-1; The pin 4 of AQY210S chip 3 and AQY210S chip 4 is connected with the output terminal of RC filtering of passage 3 and passage 4 among the analog signal conditioner module 1-3 respectively; The pin 3 of AQY210S chip 3 and AQY210S chip 4 is connected with the input end of RC filtering of passage 1 and passage 2 among the A/D acquisition module 1-5 respectively, and the pin 2 of AQY210S chip 4 is connected with the pin 48 of microprocessor module 1-1; The output terminal of the RC filtering of passage 5 is connected among the pin 4 of AQY210S chip 5 and the analog signal conditioner module 1-3; The input end of the RC filtering of passage 3 is connected among the pin 3 of AQY210S chip 5 and the A/D acquisition module 1-5, and the pin 2 of AQY210S chip 2 is connected with the pin 38 of microprocessor module 1-1; The output terminal of the RC filtering of passage 6 is connected among the pin 4 of AQY210S chip 6 and the analog signal conditioner module 1-3; The input end of the RC filtering of passage 3 is connected among the pin 3 of AQY210S chip 6 and the A/D acquisition module 1-5, and the pin 2 of AQY210S chip 2 is connected with the pin 39 of microprocessor module 1-1; The output terminal of the RC filtering of passage 7 is connected among the pin 4 of AQY210S chip 7 and the analog signal conditioner module 1-3; The input end of the RC filtering of passage 3 is connected among the pin 3 of AQY210S chip 7 and the A/D acquisition module 1-5, and the pin 2 of AQY210S chip 2 is connected with the pin 37 of microprocessor module 1-1.
ADuM1301 pin of chip 3,4,5 connects with the pin of microprocessor module 1-1 46,45,44 respectively among the A/D acquisition module 1-5.
The pin 1 of the pin 4 of PC817 optocoupler and microprocessor module 1-1 is connected among the switch acquisition module 1-6;
The pin 2 of the pin 2 of PC817 optocoupler 1 and optocoupler 3 connects with the pin 28,32 of microprocessor module 1-1 respectively among oil pump and the additive pump control module 1-7; The pin 4 of PC817 optocoupler 2 and the pin 4 of optocoupler 4 connect with the pin 31,34 of microprocessor module 1-1 respectively.
The pin 3,4,5 of ADuM1301 is connected with the pin 17,18,23 of microprocessor module 1-1 respectively among the serial communication module 1-8.
The pin 1,2,4 of AD45DB16 is connected with the pin 14,15,21 of microprocessor module 1-1 respectively among the memory module 1-9.
The pin 6,5 of DS1307 is connected with the pin 19,20 of microprocessor module 1-1 respectively among the real-time clock module 1-10.
The pin 4 of optocoupler PC817 is connected with the pin 36 of microprocessor module 1-1 among the low voltage detecting module 1-11.
Described operation equipment 2 comprises operator housing 21, and operator housing 21 is provided with that liquid crystal display panel 22, alarm sound are cancelled key 24, warning light is cancelled key 25, upset key 26 and confirmation key 27, has ambient light intensity detection hole 28 on the shell 2.Be provided with operation equipment power module 2-1, liquid crystal control module 2-2, ambient light intensity detection module 2-3, micro controller module 2-4, communication module 2-5, alarm output module 2-6 in the operator housing 21, by key processing module 2-7.Ambient light intensity detection module 2-3 position is corresponding with ambient light intensity detection hole 28; Liquid crystal display panel 22 is connected with liquid crystal control module 2-2, and alarm sound is cancelled key 24, warning light and cancelled key 25, upset key 26, confirmation key 27 and all with by key processing module 2-7 be connected.Ambient light intensity detection module 2-3, press key processing module 2-7 and be connected, as the input control module of micro controller module 2-4 with micro controller module 2-4.Alarm output module 2-6, liquid crystal control module 2-2 are connected with micro controller module 2-4, as the output module of micro controller module 2-4.Communication module 2-5 is connected with micro controller module 2-4, and operation equipment power module 2-1 is connected with other each module, is other each module for power supply, and communication module 2-5 is connected with serial communication module 1-8 in the control gear 1.
Operation equipment power module 1-1 comprises DC-DC switching power source chip LM2576HVS-5.0 and anti-reverse diode.
Liquid crystal display panel 22 adopts lattice lcd HG192641-HWL01.
Liquid crystal control module 2-2 comprises reset circuit and contrast adjustment circuit.
Micro controller module 2-4 is made up of single-chip microcomputer MC9S08DZ60, reset circuit, crystal oscillating circuit, background debug mode interface, connects according to the chip typical application circuit, is provided by chip companies.
Communication module 2-5 adopts the MAX13442E chip.
Alarm output module 2-6 comprises buzzer and light emitting diode 23.
Said pressure transducer is the pressure transducer of standard signal, and said temperature transducer is a K type thermocouple, and said liquid level sensor is the liquid level sensor of standard signal, and liquid-level switch is the float-ball type normally closed switch.
The fundamental function of control gear 1 is each input quantity of real-time monitoring system; To the real-time status data of operation equipment 2 secure transmission systems, judge that whether system need regenerate, and accurately control regenerative process; In addition, also will be by the real-time status of set time interval storage system.
The working procedure of control gear 1 is following: A/D acquisition module 1-5 constantly patrols and examines temperature, pressure, the liquid level information of pressure transducer 3, temperature transducer 4, liquid level sensor 5; After each information via Shelving, the AD conversion, the AD value after the conversion is sent to microprocessor module 1-1.Switch acquisition module 1-6 constantly patrols and examines the liquid-level switch information of additive liquid-level switch 6, and switching value also passes the signal to microprocessor module 1-1 after isolating through acquisition module photoelectricity.
Microprocessor module 1-1 converts the AD value that sends to the actual physical amount; And the current regeneration mode that is provided with according to the user; Call corresponding strategy and judge the situation of current each state of system, whether alarm signal is arranged, and whether need start regenerative process.If warning is arranged or starts regeneration then transmits alarm code and relevant information from regenerative process to the liquid crystal operation display device.After regeneration started, the output of microprocessor module control oil pump driver module started additive pump and adds additive, starts the oil pump commencement of fuel injection simultaneously.In the regenerative process; Microprocessor module is monitored DPF front end temperature in real time; Accurately control the oil spout frequency of Injection Pump through the PID control strategy; Make DPF front end temperature rise to setting temperature rapidly, and maintain setting temperature a period of time, make the particulate matter that is blocked in the DPF fully burn into the innocuous gas discharge.When the master control monitoring control devices to back pressure when being reduced to setting value, the completion of having burnt of particle in the DPF is described, stop regenerative process.Simultaneously, microprocessor module stores variable such as pressure, temperature, warning code name and the temporal information that reads real-time clock module in the memory module at interval by set time in the lump.When receiving reading of operation equipment when parameter instruction is set, read the supplemental characteristic of memory module stored, and safety be sent to operation equipment.When receiving the stored parameter instruction of operation equipment, the parameter that operation equipment is transmitted deposits memory module in.
The fundamental function of operation equipment is the real-time display system state, the Operational Limits of initialization system, acoustooptic alarm prompting.
The working procedure of operation equipment is following: each second and master control controller carry out communication; Obtain system's real-time status; And each systematic parameter shown on LCD Display in real time, if alarm signal, the warning light flash for prompting of acoustooptic alarm module are arranged; If the user is unconfirmed and eliminate this alarm signal behind the set time, then the buzzer of acoustooptic alarm module begins prompting.The user can eliminate the setting of alarm signal and systematic parameter through keyboard.When the user is provided with page through the keyboard required parameter; Microprocessor module is through the parameter in this parameter page or leaf of communication module request; And the parameter of returning is presented at parameter is provided with in the page or leaf, after the user set parameter, the memory module that the parameter of revising is sent to control gear 1 was preserved.
The oil pump jet pressure is greater than 2Mpa, and the flow of additive pump is less than 0.05mL/S, and is connected on the output interface of oil pump driver module.
Power supply voltage is 9～48V in this embodiment, and when the exhaust pressure of system surpassed user's setting pressure, the master control controller transmitted the information of regenerative process to operation equipment; And the oil spout frequency of control oil pump driver module control Injection Pump; DPF front end temperature is risen rapidly and maintain setting temperature a period of time, in the regenerative process, if when exhaust pressure is lower than setting pressure; Regenerative process finishes, and closes Injection Pump.The elapsed time and the concluding time of regeneration, and the procedure parameter of regeneration stores in the storage chip.
This control gear is owing to adopted the chip and the various interference protection measure of automotive grade; System is in operation reliable and stable, and has characteristics such as easy to operate, automatic regeneration; Simultaneously, good data storage characteristics and data upload function are that the analysis of system provides very big convenience.In addition, the cost performance of system is very high.
Claims (2)
1. control device of tail gas treatment in diesel vehicles comprises control gear, operation equipment, oil pump, additive pump and pressure transducer, temperature transducer, liquid level sensor, additive liquid-level switch, it is characterized in that:
Described control gear comprises 24 mouthfuls of electric couplers that controller housing and 3 * 8 is arranged; Be provided with microprocessor module, control gear power module, analog signal conditioner module, channel switching module, A/D acquisition module, switch acquisition module and oil pump and additive pump control module, serial communication module, memory module, real-time clock module and low voltage detecting module in the controller housing; Electric coupler provides the electric connection between each module and outside actuator and the sensor; The control gear power module is connected with other modules, is other module for power supply; Memory module, real-time clock module, A/D acquisition module, switch acquisition module, low voltage detecting module, oil pump and additive pump control module are connected with microprocessor module; Control gear power module, analog signal conditioner module, switch acquisition module, oil pump and additive pump control module, serial communication module are connected with electric coupler; Serial communication module and microprocessor module interconnection; Pressure transducer, temperature transducer, liquid level sensor all are connected with A/D acquisition module signal, and the additive liquid-level switch is connected with the switch acquisition module by signal, and oil pump all is connected with oil pump and additive pump control module signal with additive pump;
Microprocessor module is made up of Freescale MC9S08DZ60 microcontroller and correspondent peripheral circuit thereof;
The control gear power module comprises DC-DC insulating power supply module and LM2576, the LM1117 of DC-DC insulating power supply module and 5-24V of the 5V-5V of parallel connection;
The analog signal conditioner module comprises RC plastic filter circuit and electrostatic protection device, TVS device;
Channel switching module comprises the AQY210S rapid light coupling relay of seven panasonic semiconductor companies;
The A/D acquisition module comprises the high-accuracy and constant potential source REF3125 of TI company, reaches the RC eliminator of series connection successively, instrument amplifier AD623, high-precision AD conversion chip AD7793 and the high-speed figure isolating chip ADuM1301 of ADI company;
The switch acquisition module comprises ESD, TVS pipe and PC817 optocoupler;
Oil pump and additive pump control module comprise the light-coupled isolation chip PC817 of series connection successively and the driving chip BTS442E of company of Infineon;
The serial communication module comprises the ADuM1301 and the MAX13442E chip of series connection;
Memory module adopts the AT45DB16D storage chip of Atmel company;
Real-time clock module adopts the DS1307 real-time timepiece chip of Dallas company;
Low voltage detecting module comprises amplifier LM324 and optocoupler PC817;
The concrete Placement of each module is following in the control gear:
Safety fuse cutout is connected with RC plastic filter circuit, electrostatic protection device in the analog signal conditioner module, electrostatic protection device and piezoresistance parallel connection, and piezoresistance pin 1 is connected with the pin 1 of AQY210S in the channel switching module;
The pin 4 of AQY210S chip 1 and AQY210S chip 2 is connected with the output terminal of RC filtering of passage 1 and passage 2 in the analog signal conditioner module respectively in the channel switching module; The pin 3 of AQY210S chip 1 and AQY210S chip 2 is connected with the input end of RC filtering of passage 1 and passage 2 in the A/D acquisition module respectively, and the pin 2 of AQY210S chip 2 is connected with the pin 47 of microprocessor module; The pin 4 of AQY210S chip 3 and AQY210S chip 4 is connected with the output terminal of RC filtering of passage 3 and passage 4 in the analog signal conditioner module respectively; The pin 3 of AQY210S chip 3 and AQY210S chip 4 is connected with the input end of RC filtering of passage 1 and passage 2 in the A/D acquisition module respectively, and the pin 2 of AQY210S chip 4 is connected with the pin 48 of microprocessor module; The output terminal of the RC filtering of passage 5 is connected in the pin 4 of AQY210S chip 5 and the analog signal conditioner module; The input end of the RC filtering of passage 3 is connected in the pin 3 of AQY210S chip 5 and the A/D acquisition module, and the pin 2 of AQY210S chip 2 is connected with the pin 38 of microprocessor module; The output terminal of the RC filtering of passage 6 is connected in the pin 4 of AQY210S chip 6 and the analog signal conditioner module; The input end of the RC filtering of passage 3 is connected in the pin 3 of AQY210S chip 6 and the A/D acquisition module, and the pin 2 of AQY210S chip 2 is connected with the pin 39 of microprocessor module; The output terminal of the RC filtering of passage 7 is connected in the pin 4 of AQY210S chip 7 and the analog signal conditioner module; The input end of the RC filtering of passage 3 is connected in the pin 3 of AQY210S chip 7 and the A/D acquisition module, and the pin 2 of AQY210S chip 2 is connected with the pin 37 of microprocessor module;
ADuM1301 pin of chip 3, pin 4, pin 5 are connected with pin 46, pin 45, the pin 44 of microprocessor module respectively in the A/D acquisition module;
The pin 1 of the pin 4 of PC817 optocoupler and microprocessor module is connected in the switch acquisition module;
The pin 2 of the pin 2 of PC817 optocoupler 1 and optocoupler 3 is connected with pin 28, the pin 32 of microprocessor module respectively in oil pump and the additive pump control module; The pin 4 of PC817 optocoupler 2 is connected with pin 31, the pin 34 of microprocessor module respectively with the pin 4 of optocoupler 4;
The pin 3 of ADuM1301, pin 4, pin 5 are connected with pin 17, pin 18, the pin 23 of microprocessor module respectively in the serial communication module;
The pin 1 of AT45DB16D, pin 2, pin 4 are connected with pin 14, pin 15, the pin 21 of microprocessor module respectively in the memory module;
The pin 6 of DS1307, pin 5 are connected with pin 19, the pin 20 of microprocessor module respectively in the real-time clock module;
The pin 4 of optocoupler PC817 is connected with the pin 36 of microprocessor module in the low voltage detecting module;
Described operation equipment comprises operator housing, and operator housing is provided with that liquid crystal display panel, alarm sound are cancelled key, warning light is cancelled key, upset key and confirmation key, has ambient light intensity detection hole on the shell; Be provided with operation equipment power module, liquid crystal control module, ambient light intensity detection module, micro controller module, communication module, alarm output module in the operator housing, by key processing module; Ambient light intensity detection module position is corresponding with ambient light intensity detection hole, and liquid crystal display panel is connected with liquid crystal control module, and alarm sound is cancelled key, warning light and cancelled key, upset key, confirmation key and all with by key processing module be connected; Ambient light intensity detection module, press key processing module and be connected, as the input control module of micro controller module with micro controller module; Alarm output module, liquid crystal control module are connected with micro controller module, as the output module of micro controller module; Communication module is connected with micro controller module, and each module of operation equipment power module and other is connected, and is other each module for power supply, and communication module is connected with serial communication module in the control gear;
The operation equipment power module comprises DC-DC switching power source chip LM2576HVS-5.0 and anti-reverse diode;
Liquid crystal display panel adopts lattice lcd HG192641-HWL01;
Liquid crystal control module comprises reset circuit and contrast adjustment circuit;
Micro controller module is made up of single-chip microcomputer MC9S08DZ60, reset circuit, crystal oscillating circuit, background debug mode interface, connects according to the chip typical application circuit;
Communication module adopts the MAX13442E chip;
Alarm output module comprises buzzer and light emitting diode.
2. control device of tail gas treatment in diesel vehicles as claimed in claim 1 is characterized in that:
Described pressure transducer is the pressure transducer of standard signal,
Described temperature transducer is a K type thermocouple,
Described liquid level sensor is the liquid level sensor of standard signal,
Described additive liquid-level switch is the float-ball type normally closed switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101528983A CN101666253B (en) | 2009-09-18 | 2009-09-18 | Control device of tail gas treatment in diesel vehicles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101528983A CN101666253B (en) | 2009-09-18 | 2009-09-18 | Control device of tail gas treatment in diesel vehicles |
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| Publication Number | Publication Date |
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| CN101666253A CN101666253A (en) | 2010-03-10 |
| CN101666253B true CN101666253B (en) | 2012-11-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009101528983A Expired - Fee Related CN101666253B (en) | 2009-09-18 | 2009-09-18 | Control device of tail gas treatment in diesel vehicles |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US8806852B2 (en) * | 2012-02-08 | 2014-08-19 | GM Global Technology Operations LLC | Method for controlling regeneration within an after-treatment component of a compression-ignition engine |
| US8745967B2 (en) * | 2012-05-04 | 2014-06-10 | GM Global Technology Operations LLC | System and method for controlling exhaust regeneration |
| CN102709730B (en) * | 2012-06-19 | 2015-05-27 | 北京经纬恒润科技有限公司 | DCU connector and diesel engine exhaust process controller |
| CN104102492A (en) * | 2014-07-28 | 2014-10-15 | 安徽艾可蓝节能环保科技有限公司 | Active regeneration type particulate matter catching control software system |
| CN105509797A (en) * | 2015-10-14 | 2016-04-20 | 常州市鹰皇冠进出口有限公司 | Diesel engine tail gas quality monitoring system |
| CN105888789A (en) * | 2016-06-12 | 2016-08-24 | 中国重汽集团济南动力有限公司 | Power supply system of heavy-duty car SCR system |
| CN108427026A (en) * | 2018-03-22 | 2018-08-21 | 西安天箭防务科技有限公司 | A kind of universal signal waveform acquisition equipment |
| CN110715703A (en) * | 2019-10-22 | 2020-01-21 | 山东中车华腾环保科技有限公司 | Digital-to-analog conversion control device and method for liquid level display of train water tank |
| CN112627941B (en) * | 2021-01-27 | 2022-06-10 | 哈尔滨艾瑞排放控制技术股份有限公司 | Embedded utilize electrostatic adsorption to purify automobile exhaust's device |
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| CN2667173Y (en) * | 2003-12-29 | 2004-12-29 | 陈秋平 | Diesel engine tail gas spraying noise silencing purifier |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2667173Y (en) * | 2003-12-29 | 2004-12-29 | 陈秋平 | Diesel engine tail gas spraying noise silencing purifier |
| CN2924023Y (en) * | 2005-12-28 | 2007-07-18 | 李效志 | Diesel oil motor vehicle tail-gas smoke purifying device |
| CN101089380A (en) * | 2006-12-06 | 2007-12-19 | 张昌盛 | Vehicle speed reduction brake light load oil saving device |
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| CN101666253A (en) | 2010-03-10 |
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