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EP2400135A2 - Verfahren und Vorrichtung zur Simulation von Abgasdruck in einem Abgassystem, insbesondere für Dieselmotoren - Google Patents

Verfahren und Vorrichtung zur Simulation von Abgasdruck in einem Abgassystem, insbesondere für Dieselmotoren Download PDF

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Publication number
EP2400135A2
EP2400135A2 EP20110460030 EP11460030A EP2400135A2 EP 2400135 A2 EP2400135 A2 EP 2400135A2 EP 20110460030 EP20110460030 EP 20110460030 EP 11460030 A EP11460030 A EP 11460030A EP 2400135 A2 EP2400135 A2 EP 2400135A2
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EP
European Patent Office
Prior art keywords
signal
temperature
engine
modified
microcontroller
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.)
Withdrawn
Application number
EP20110460030
Other languages
English (en)
French (fr)
Inventor
Leszek Lowalik
Bartlomiej Wlodarczyk
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.)
Elektronika-Informatyka Leszek Kowalik
Original Assignee
Elektronika-Informatyka Leszek Kowalik
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from PL391518A external-priority patent/PL217259B1/pl
Priority claimed from PL391517A external-priority patent/PL217260B1/pl
Priority claimed from PL394702A external-priority patent/PL394702A1/pl
Application filed by Elektronika-Informatyka Leszek Kowalik filed Critical Elektronika-Informatyka Leszek Kowalik
Publication of EP2400135A2 publication Critical patent/EP2400135A2/de
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
    • F02D41/26—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using computer, e.g. microprocessor
    • F02D41/266—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using computer, e.g. microprocessor the computer being backed-up or assisted by another circuit, e.g. analogue
    • 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
    • F02D41/14—Introducing closed-loop corrections
    • F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
    • F02D41/1444—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases
    • F02D41/1448—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being an exhaust gas 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
    • F02D2200/0606—Fuel temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2400/00—Control systems adapted for specific engine types; Special features of engine control systems not otherwise provided for; Power supply, connectors or cabling for engine control systems
    • F02D2400/11—After-sales modification devices designed to be used to modify an engine afterwards
    • 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
    • F02D41/14—Introducing closed-loop corrections
    • F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
    • F02D41/1444—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases
    • F02D41/1446—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being exhaust temperatures

Definitions

  • the present invention relates to a method and device for simulate the exhaust gas pressure in the exhaust system for internal combustion engines especially diesel engines and shows how to protect the engine from overheating during tuning.
  • Tuning is a series of steps aimed at improving the performance of the particular engine power and rotary moment.
  • polish patent P-388671 is known an internal combustion engine control system characterized in that it consists of a microprocessor, connected to the counter n mass flow , connected digital analog convener, to the first exhaust temperature sensor, potentiometer, with the passing counter time, whereby to the microprocessor are connected directly counters, analog digital potentiometers, and elapsed time counter.
  • the module is a single-channel analog voltage converter, digitally controlled.
  • the module according to the invention consists of a proper external module mounted in the vehicle and a mobile phone operated by a user of the vehicle.
  • External power control module for the engine of the invention consists of an analog voltage converter, two voltage amplifiers connected in series, with two transmitters digital analog of microcontroller and digital signal input port and output port signals.
  • the module has an internal memory installed, the signal analyzer to monitor the presence of power supply module elements and analog-digital converter.
  • the internal memory is directly connected to the microcontroller module.
  • the module has installed Bluetooth radio interface, allowing direct wireless connection to your mobile phone and / or personal computer.
  • Mobile phone is a necessary external equipment module of the invention.
  • Mobile has installed a wireless interface Bluetooth, the phone internal memory, microcontroller, display and keyboard.
  • Microcontroller installed on the module and the microcontroller installed on the mobile phone, with Bluetooth interface, a signal processor module.
  • the electronic module is known to increase the capacity of engines with electronically controlled fuel injection by controlling the fuel injection control executed by the alternative injection pump .
  • the electronic module according to the invention consists of the analog-digital converters, digital security buffer input, single-chip microcontroller connected to the containing control program and operating system associated directly with embedded memories of different control strategies and model options.
  • the buffer is further coupled with optional synchronization with the controller factory work, which is connected to the microcontroller and the integrated power amplifier.
  • the microcontroller is connected to a digital-analog converters and digital output buffer protection. DACs are connected to the protective buffers, and the safety buffer is combined with integrated power amplifier.
  • the module also has a module installed on the supply voltage, which is connected by the start of the microcontroller module.
  • the module allows you to control only for engines with fuel injection unit VP44 pump and common-rail.
  • the aim of the present invention is to provide a secure hardware tuning which is modifing car engine operating parameters, while monitoring the temperature in several places the vehicle in order to cut off too long ongoing tuning to prevent mechanical damage of vehicle especially the damage of engine.
  • Method of simulate the exhaust gas pressure characterized in that is measured at the same time intake air mass by the engine with at least one airflow meter and / or sensing the number of revolutions of the engine, and also is measured exhaust gas temperature using flue gas temperature sensor and is checked the injector operation, and thus obtained data are transmitted to the microprocessor of device, and the microprocessor calculates and determines the exhaust temperature correction factor based on the time of working of the injector, while for running injector increases the correction factor of exhaust gas at the time to the maximum set limit, and for not acting injector decreases the correction factor of exhaust gas to the minimum rate limit, and thus achieved increased simulated exhaust gas temperature in relation to actual gas temperature in the exhaust system, then the correction factor of gas pressure is determined on meter of the passing time or signal of distance traveled and exhaust temperature, where for a temperature lower than the threshold is increased exhaust pressure correction factor to a fixed maximum limit, and for temperatures greater than the threshold is reduced exhaust pressure correction factor to a fixed minimum limit, then the microprocessor calculates the pressure and temperature of exhaust gases in
  • Method of protecting the engine from overheating during tuning characterized in that, is measured periodically preferably every 1 second, preferably with at least one sensor, is measured an operating temperature and / or the temperature of exhaust gas, and thus obtained signals are transmitted to the central unit, and if the temperature exceeds a threshold temperature, preferably 800 °C for the temperature of the engine and / or preferably 650°C for the temperature of exhaust gas, the CPU temporarily blocks the possibility of hardware tuning of the vehicle until the engine cool below the temperature threshold in to prevent mechanical damage on the car too long and intensive tuning engine operating parameters, the central processing unit carries out a way in the form of a computer program, taking a signal engine coolant temperature preferably 60°C from the engine controller and compares it with the maximum acceptable temperature, and then if the value exceeds the maximum temperature the microprocessor stops and blocks the action of hardware tuning until the temperature drops below the maximum allowable temperature.
  • a threshold temperature preferably 800 °C for the temperature of the engine and / or preferably 650°C for the temperature of exhaust gas
  • the central processing unit is: a microprocessor or microcontroller or engine controller or computer.
  • a device contains wirelessly connected and working together: a device to increase engine power and the external control panel, where the increase engine power device is connected to the engine controller and to the power supply, and as an external control unit is used a : touch panel or the mobile device or PDA or cell phone or a personal computer.
  • Communication between device to increase engine power and the external control panel is made by a signal bi-directionally and wirelessly via radio or wi-fi standard(Wireless Fidelity) or IRDA (Infrared Data Association) or Bluetooth.
  • Communication between device to increase engine power and the external control panel is made by a signal bidirectionally and wired with cable or USB connector.
  • a device to increase engine power has a structure of connected to the microcontroller blocks : a block for matching the input signals, block of injector, block of modified output signals, block of wireless communication, block of wire communication, block of emulating the injector and also to the microcontroller connected elements: buttons, signaling components - LEDs, thermal protection and block of acceleration and direction of car drive.
  • a block for matching the input signals is collecting a signals: an air flow signal from the air mass sensor, a boost pressure signal from the boost pressure sensor or the engine controller, a fuel pressure signal from the fuel pressure sensor, a exhaust gas temperature DPF / FAP signal from the exhaust gas sensor, a fuel temperature signal from the fuel temperature sensor, an air temperature signal from the air temperature sensor, and a with multichannel analog-digital converters and / or frequency measurements signals are converted into digital signals and send to the input of the microcontroller.
  • the signals processed and modified by the microcontroller are send to the block of modified output signals, where by multichannel DACs are exposed modified signals: the modified air flow signal, the modified boost pressure signal, a modified fuel pressure signal, modified exhaust temperature signal, modified fuel temperature signal, modified air temperature signal, a modified pressure DPF / FAP signal, which all of them are send to engine controller.
  • injector signal In the block of injector is taken controlling injector signal and through the converter is send to a microcontroller.
  • thermal protection which is preferably an external temperature sensor is taken a signal of thermal protection, which is transmitted to the microcontroller.
  • External temperature sensor is located on the vehicle's cooling system.
  • wire communication block signal from an external control panel is decoded to signal and is send to the microcontroller .
  • the modified signal to the injector from microcontroller is send to the injector.
  • the block of acceleration and direction of car drive consists of acceleration sensor and gyroscope sensor permanently attached to the vehicle.
  • the device is connected to the main engine controller and allows youser to modify the engine control signals, and thus it is possible to change the performance of the internal combustion engine and power.
  • Thermal Protection is an additional temperature sensor mounted in the liquid cooling system engine.
  • the sensor measures the temperature of the coolant and after crossing a temperature of 60°C becomes possible to modify motor control signals.
  • the advantage of this solution is not overloading the motor when it is cold and not allow the engine to overheat and thus the mechanical failure of the engine.
  • Block acceleration and direction through the use of gyro and acceleration sensor to measure acceleration and direction of the vehicle to an automatic adjustment of engine control signals.
  • the advantages of the device is an increase engine performance, especially diesel.
  • the solution of the invention can be applied to motor sports and everyday use in the car to improve performance.
  • An important advantage of the invention is the possibility of convenient wireless control system (BOX) with an external control panel (PDA).
  • BOX wireless control system
  • PDA external control panel
  • Figure 1 shows the circuit diagram and connect it to the main engine controller
  • Figure 2 shows a general diagram of device
  • Figure 3 shows diagram of computer program for use in device
  • Figure 4 shows the interaction of the supervisory program, uses of device box and satellite navigation
  • Fig.5 shows the overall scheme of connecting the device to the engine driver/controler
  • Fig.6 shows the diagram of the overall signal flow in device.
  • a device contains wirelessly connected and working together: a device to increase engine power BOX and the external control panel PDA , where the increase engine power device BOX is connected to the engine controller S and to the power supply F .
  • an external control unit PDA is used a : touch panel or the mobile device or PDA or cell phone or a personal computer.
  • Communication between device to increase engine power BOX and the external control panel PDA is made by a signal 18 bi-directionally and wirelessly via radio or wi-fi standard(Wireless Fidelity) or IRDA (Infrared Data Association) or Bluetooth.
  • Communication between device to increase engine power BOX and the external control panel PDA, is made by a signal 19 bidirectionally and wired with cable or USB connector.
  • Device to increase engine power BOX has a structure of connected to the microcontroller M blocks : a block for matching the input signals A , block of injector B, block of modified output signals C , block of wireless communication D , block of wire communication E , block of emulating the injector and also to the microcontroller M connected elements: buttons G , signaling components-LEDs H, thermal protection L and block of acceleration and direction of car drive K
  • Block for matching the input signals A is collecting a signals: an air flow signal 1 from the air mass sensor, a boost pressure signal 2 from the boost pressure sensor or the engine controller S , a fuel pressure signal 3 from the fuel pressure sensor, a exhaust gas temperature DPF / FAP signal 4 from the exhaust gas sensor, a fuel temperature signal 5 from the fuel temperature sensor, an air temperature signal 6 from the air temperature sensor, and a with multichannel analog-digital converters and / or frequency measurements signals are converted into digital signals and send to the input of the microcontroller M.
  • Signals processed and modified by the microcontroller M are send to the block of modified output signals C ,where by multichannel DACs are exposed modified signals: the modified air flow signal Modified boost pressure signal 9 , a modified fuel pressure signal 10 , modified exhaust temperature signal 11 , modified fuel temperature signal 12 , modified air temperature signal 13 , a modified pressure DPF / FAP signal 14 , which all of them are send to engine controller S .
  • injector B In the block of injector B is taken controlling injector signal 7 and through the converter is send to a microcontroller M .
  • the injector is opened a signal from the engine controller.
  • thermal protection L which is preferably an external temperature sensor T is taken a signal of thermal protection 21 ,which is transmitted to the microcontroller M.
  • External temperature sensor T is located on the vehicle's cooling system.
  • signal 18 from an external control panel PDA is decoded to signal 16 and is send into the microcontroller M.
  • the modified signal to the injector 15 from microcontroller M is send to the injector.
  • the block of acceleration and direction of car drive K consists of acceleration sensor and gyroscope sensor permanently attached to the vehicle.
  • the device for increasing power BOX reads from block for matching the input signals A followed signals:
  • the fuel pressure signal 3 .It is in the range of 0V to 5V. It is processed by the microcontroller M and then passed to the engine controller S - modified signal 10 . After crossing the threshold of 2V begin to modify the signal by reducing its value, respectively 0%, 10%, 20% and 30% depending on the selected mode. After crossing the fuel pressure signal 4V stop editing it.
  • Fuel pressure signal is in the range of 0V to 5V. It is processed by the microcontroller M and then passed to the engine controller S - modified signal 10 . After crossing the threshold of 2V begin to modify the signal by reducing its value, respectively 0%, 10%, 20% and 30% depending on the selected mode. Modification occurs only when the coolant temperature is greater than 60°C. After crossing the fuel pressure signal 4V stop editing it.
  • Fuel pressure signal is in the range of 0V to 5V. It is processed by the microcontroller M and then passed to the engine controller S - modified signal 10. After crossing the threshold of 2V begin to modify the signal by reducing its value, respectively 0%, 10%, 20% and 30% depending on the selected mode. Modification occurs only when the temperature of the exhaust gas is less than 750°C. After crossing the fuel pressure signal 4V stop editing it.
  • FIG.3 shows a program installed on device BOX.
  • Figure 4 shows interaction on the supervisory program, program to maintance box, and satellite navigation.
  • the method of protecting the engine from overheating during tuning is that it is preferably measured periodically every 1 second by at least one temperature sensor and the temperature of engine exhaust gas temperature, and so received signals to be transmitted to the central unit J, and if the temperature exceeds the temperature threshold of 800 °C for engine temperature and 650°C for the temperature of exhaust gas, the CPU J temporarily blocks the possibility of hardware tuning of the vehicle until the engine cool below the temperature threshold to prevent mechanical damage when the car too long and intensive tuning engine parameters.
  • the central unit J is a microprocessor, microcontroller, engine controller or computer.
  • Unit J realizes how in the form of a computer program, taking a signal engine coolant temperature preferably 60°C from the engine controller S and compares it with the maximum temperature, and then if the value exceeds the maximum permissible temperature of the microprocessor stops and blocks the action of hardware tuning until the temperature drops below the maximum allowable temperature.
  • pressure and temperature gases in the exhaust system simulates the use of the device BOX of the invention. This is done to the engine with diesel particulate filter removed. Simulation is done solely for the proper operation of the engine driver.
  • the system measures the air mass drawn in by the engine through at least one meter, and measures the temperature of exhaust gases through the flue gas temperature sensor and check the operation of the injector I .
  • the resulting data transmitted to the microprocessor M of device BOX the microprocessor M determines the exhaust gas temperature correction factor based on the time of the injector I .
  • the injector I For running the injector I increases the exhaust gas temperature correction factor Tk-time to the maximum limit set equal to 2, and for not acting injector I reduces the exhaust gas temperature correction factor Tk-time to the minimum limit set equal to 1 sets the correction factor gas pressure Pk on the basis of elapsed time counter, or signal the distance traveled and the exhaust gas temperature, and for temperatures lower than the threshold is increased exhaust pressure correction factor to a fixed boundary Pk maximum 1.2 and a temperature greater than the threshold is reduced exhaust pressure correction factor Pk to set a minimum limit of the first thus obtained simulated flue gas temperature increased compared to the actual exhaust gas temperature in the exhaust system.
  • the microprocessor M calculates the pressure and temperature exhaust gases in the exhaust system, which gives signals in the form of temperature and pressure signal to the engine controller S .
  • Twyj Twej * Tk
  • Tk exhaust gas correction factor is in the range of 1 to 2.
  • Pk gas correction factor is in the range of 1 to 1.2.
  • the threshold temperature is 600°C.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
EP20110460030 2010-06-15 2011-06-01 Verfahren und Vorrichtung zur Simulation von Abgasdruck in einem Abgassystem, insbesondere für Dieselmotoren Withdrawn EP2400135A2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
PL391518A PL217259B1 (pl) 2010-06-15 2010-06-15 Sposób i układ symulacji sygnału ciśnienia spalin, zwłaszcza dla silników spalinowych diesla
PL391517A PL217260B1 (pl) 2010-06-15 2010-06-15 Sposób i układ symulacji ciśnienia gazów spalin w układzie wydechowym, zwłaszcza dla silników spalinowych diesla
PL394702A PL394702A1 (pl) 2011-04-28 2011-04-28 Bezprzewodowy uklad zwiekszania mocy silnika z zabezpieczeniem termicznym oraz sposób zabezpieczenia silnika przed przegrzaniem w czasie tuningu zwlaszcza dla silników spalinowych diesla

Publications (1)

Publication Number Publication Date
EP2400135A2 true EP2400135A2 (de) 2011-12-28

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EP20110460030 Withdrawn EP2400135A2 (de) 2010-06-15 2011-06-01 Verfahren und Vorrichtung zur Simulation von Abgasdruck in einem Abgassystem, insbesondere für Dieselmotoren

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108195764A (zh) * 2017-11-20 2018-06-22 北京雪迪龙科技股份有限公司 对尾气遥测系统进行标定或验证的标准气发生系统及方法
CN113294241A (zh) * 2021-06-01 2021-08-24 广西玉柴机器股份有限公司 一种电控发动机传感器及控制器信号的无线传输方法
CN113790881A (zh) * 2021-09-16 2021-12-14 中国北方发动机研究所(天津) 一种燃料电池增压器变海拔模拟测试系统

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL202361A1 (pl) 1977-11-22 1979-09-10 Politechnika Gdanska Mikrozawor o znikomej objetosci martwej do wysokocisnieniowej chromatografii cieczowej
PL382259A1 (pl) 2007-04-24 2008-10-27 Tomasz Marcin Pirowski Zewnętrzny moduł sterowania mocą silnika

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL202361A1 (pl) 1977-11-22 1979-09-10 Politechnika Gdanska Mikrozawor o znikomej objetosci martwej do wysokocisnieniowej chromatografii cieczowej
PL382259A1 (pl) 2007-04-24 2008-10-27 Tomasz Marcin Pirowski Zewnętrzny moduł sterowania mocą silnika

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108195764A (zh) * 2017-11-20 2018-06-22 北京雪迪龙科技股份有限公司 对尾气遥测系统进行标定或验证的标准气发生系统及方法
CN113294241A (zh) * 2021-06-01 2021-08-24 广西玉柴机器股份有限公司 一种电控发动机传感器及控制器信号的无线传输方法
CN113790881A (zh) * 2021-09-16 2021-12-14 中国北方发动机研究所(天津) 一种燃料电池增压器变海拔模拟测试系统
CN113790881B (zh) * 2021-09-16 2023-10-03 中国北方发动机研究所(天津) 一种燃料电池增压器变海拔模拟测试系统

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