CN103775224A - Method for detecting type of sensor or actuator connected to control unit or adapted for connection - Google Patents
Method for detecting type of sensor or actuator connected to control unit or adapted for connection Download PDFInfo
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- CN103775224A CN103775224A CN201310571150.3A CN201310571150A CN103775224A CN 103775224 A CN103775224 A CN 103775224A CN 201310571150 A CN201310571150 A CN 201310571150A CN 103775224 A CN103775224 A CN 103775224A
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- Prior art keywords
- actuator
- sensor
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- type
- controller
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/22—Safety or indicating devices for abnormal conditions
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/14—Introducing closed-loop corrections
- F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
- F02D41/1493—Details
- F02D41/1494—Control of sensor heater
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/14—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
- F02D41/1454—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 oxygen content or concentration or the air-fuel ratio
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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
- F02D41/24—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
- F02D41/28—Interface circuits
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
The invention relates to a method for detecting the type of a sensor (14) or actuator connected to a control unit (17) or adapted for connection. This includes measuring a characteristic measurement variable of the sensor (14) or the actuator, or an interface of the sensor (14) or the actuator, and determining the type of the sensor (14) or the actuator from the measured quantity.
Description
Technical field
The present invention relates to a kind of for identifying sensor on controller or that settle for joint or the method for the type of actuator of being connected to.In addition, the invention still further relates to a kind of computer program, in the time that this program is moved on computer or controller, it carries out the Overall Steps of the method according to this invention.Finally the invention still further relates to a kind of computer program with program-code, described program-code is stored on machine-readable carrier, and in the time that this program is moved on computer or controller for carrying out the method according to this invention.
Background technique
Current motor control system has used multiple sensor and the actuator being connected on controller.In described controller, operation has functional software with operation and analyte sensors and actuator.Realize functional software and the sensor that uses and actuator types and corresponding vehicle have been matched by variable application parameter.
Determine that these application parameters expend time in and expense.Can cause functional fault if erroneously configure application parameter.Crucial is especially functional error configurations, and it can cause connected assembly impaired.
The example of the application of particular importance is the heating manipulation to exhaust gas oxygensensor.The error configurations of this heating manipulation can cause exhaust gas oxygensensor overheated so that impaired.Especially determine that the application parameter of the heating manipulation best for definite sensor type can damage other sensor type.For example design lower than for the exhaust gas oxygensensor of vehicle-mounted voltage for its heater normal voltage, if for for the heating of the designed conventional exhaust gas oxygensensor of whole vehicle-mounted voltage should be used for moving this exhaust gas oxygensensor, this exhaust gas oxygensensor will soon damage.
Summary of the invention
According to of the present invention, for identify be connected on controller or comprise for the method for the sensor of joint arrangement or the type of actuator, at least one sign of measuring transducer or actuator is measured at least one sign of the interface of parameter or sensor or actuator and is measured parameter, and is asked for the type of described sensor or actuator by described at least one sign measurement parameter.Having sensor to be identified at this is for example exhaust gas oxygensensor, especially two point form exhaust gas oxygensensor.
Preferably, at least one characteristic features that characterizes at least one and described sensor or the actuator measured in parameter has and contacts directly.It can be for example the heating properties of exhaust gas oxygensensor.In addition preferably, at least one characteristic features that characterizes the interface of sensor at least one and the controller of measuring in parameter or actuator has and contacts directly.This can be for example exhaust gas oxygensensor be diagnostic purpose or for keeping oxygen with reference to the backward voltage that exists.Described foundation method of the present invention can be simultaneously will have the measurement parameter contacted directly and have the measurement parameter the contacted directly type for identification sensor or actuator with the characteristic features of the electrical wiring of sensor or actuator with the characteristic features of sensor or actuator.Preferably realize by controller itself determination and analysis of these being measured to parameter, thereby no longer need extra surveying.
After asking for the type of sensor and actuator, preferably the application parameter of sensor or actuator is carried out to confidence level test and/or protection.In the time identifying insecure value of application parameter, particularly preferably be at least one function of sensor or actuator and/or give a warning and/or send error reporting described in deexcitation.Particularly preferably be as an alternative, described application parameter is converted to reliable value for the type of having identified of described sensor or actuator.Thus according to method of the present invention automatically can avoid due to error configurations cause sensor or actuator impaired.Confidence level test and all method steps subsequently are preferably realized by described controller, thereby no longer need extra device to carry out according to method of the present invention.
In addition according to the present invention preferably, after the type of asking for sensor or actuator, the type of asking for for this sensor or actuator is configured the application parameter of sensor or actuator.Can guarantee thus the fundamental function of sensor or actuator.Described basic application can not make to change the starting point that adopts (plug and play) or can serve as other application for simple application.The manual basic application that can save the consuming time of sensor or actuator and easily make mistakes according to the present invention thus.
According to computer program of the present invention can carry out according to method of the present invention institute in steps, if this program is moved on computer or controller.This has realized, for example implementation basis method of the present invention in the existing motor system of Motor Vehicle, and needn't structurally transform it.For this reason, having the computer program that is stored in the program-code on machine-readable carrier can carry out according to method of the present invention, if this program is moved on computer or controller.
Accompanying drawing explanation
By means of accompanying drawing and further set forth in the following description embodiments of the invention.Wherein:
Fig. 1 illustrates the motor system of Motor Vehicle, in its gas exhaust piping, is furnished with exhaust gas oxygensensor, and the type of described exhaust gas oxygensensor can be identified by the mode of execution according to method of the present invention.
Embodiment
Fig. 1 illustrates to have motor system 1 internal-combustion engine 2, Motor Vehicle, and air imports by air that section 3 imports and derives section 4 by gas of combustion by waste gas and derive.Described air imports section 3 and comprises suction port 5, air filter 6 and compressor 7, suck ambient air by described suction port, described air filter filters the ambient air the eliminating particle that are inhaled into, and described compressor is inhaled into and crosses for compressing the fresh air filtering.Described compressor 7 is parts of exhaust gas turbocharger 8.Be provided with charger-air cooler 9 in the downstream of compressor 7, with cooling compressed, due to compression heated fresh air.Can adjust the amount of the fresh air of input internal-combustion engine 2 by means of throttle valve 10.Fuel can be injected into air and imports in the suction tude section 11 of section 3 or be directly injected in the cylinder 12 of internal-combustion engine 2, to move described internal-combustion engine.Described waste gas is derived section 4 gas of combustion is discharged from internal-combustion engine 2, and described gas of combustion is that described internal-combustion engine produces by the burning of air-fuel mixture according to conventional four-stroke operation.Derive at described waste gas the turbo machine 13 of arranging exhaust gas turbocharger 8 in section 4, compressor 7 machineries that described turbo machine and air import in section 3 couple.Described exhaust turbine 13 has utilized the waste gas enthalpy of gas of combustion and described waste gas enthalpy has been converted to the compressor horsepower of compressor 7.There is two point form exhaust gas oxygensensor 14 in the arranged downstream of turbo machine 13, can ask for the oxygen content of gas of combustion by described two point form exhaust gas oxygensensor.There are catalyst converter 15 and particulate filter 16 in the arranged downstream of exhaust gas oxygensensor 14.By the operation of controller 17 controlling combustion engines 2.
Can identify in embodiments of the present invention, used the two point form exhaust gas oxygensensor 14 of which kind of type together with controller 17.This will be divided into two steps and detect.In first step, identify, whether be provided with the oxygen reference of the reference of ambient air oxygen or suction for the controller 17 of exhaust gas oxygensensor 14.After described preliminary election, in second step, identify the definite type of exhaust gas oxygensensor 14.
In controller 17, there is the power supply in parallel with exhaust gas oxygensensor 14.Described power generation backward voltage (Gegenspannung) regulation, constant.Because described exhaust gas oxygensensor 14 itself is also power supply, it is therefore the parallel circuit of two power supplys.In controller 17, measure the output voltage of described parallel circuit by means of analog digital converter.For cold exhaust gas oxygensensor 14, backward voltage accounts for leading.Therefore for cold exhaust gas oxygensensor 14, on analog digital converter, apply backward voltage.In foundation a kind of mode of execution of method of the present invention, in first step, make full use of following situation, there is the exhaust gas oxygensensor 14 of ambient air oxygen with reference to (Umgebungsluftsauerstoffreferenz) with relatively low backward voltage operation, and there is the exhaust gas oxygensensor 14 of the oxygen reference of suction with relatively high backward voltage operation.Therefore, can distinguish simply the exhaust gas oxygensensor 14 with the reference of ambient air oxygen and the exhaust gas oxygensensor 14 with the oxygen reference of suction by cold sensor measurement being applied to the mode of the voltage on analog digital converter.If measure backward voltage regulation, relatively little, used the sensor with the reference of ambient air oxygen.If measure backward voltage regulation, relatively large, use the sensor of the oxygen reference with suction.This can get rid of the sensor with the reference of ambient air oxygen be connected to have for the controller of the circuit of the sensor of the oxygen reference with suction on or contrary situation, this is because two kinds of sensor types have the plug connector of different coding.
According to this step of this mode of execution of method of the present invention be connect by the characteristic features identification of the electrical wiring of the sensor in controller 17 or actuator or be the example of the sensor of this joint arrangement or the type of actuator.The sensor that these characteristics based on controller 17 especially can also instead be released actuator or also not come into operation in the situation that there is no feedback.For described identification, can no longer to need if desired the feedback of sensor or actuator itself, thereby to make needn't described sensor or actuator be connected on controller 17 again in order identifying in such cases.Therefore also can in the situation that not connecting exhaust gas oxygensensor 14, ask for the oxygen reference of exhaust gas oxygensensor 14.
After described preliminary election, according in this mode of execution of method of the present invention, can in second step, make full use of following situation, i.e. the dissimilar exhaust gas oxygensensor 14 thermal power demand different because different thermal masses has.Therefore in the time manipulating in the same manner sensor heating, dissimilar exhaust gas oxygensensor 14 shows different heating properties.Therefore the curve that judges the sensor characteristics parameter of one or more and temperature correlation under the boundary conditions limiting when exhaust gas oxygensensor 14 is heated can be distinguished the exhaust gas oxygensensor 14 that has been connected which kind of type.Possible sensor characteristics parameter can be for example thermal resistance or the sensor internal resistance of sensor voltage, sensor.Be for carrying out according to the particularly advantageous boundary conditions of this mode of execution of method of the present invention, load the thermal power stipulating for internal-combustion engine 2 speech cold and that be disconnected for exhaust gas oxygensensor 14.For result is carried out to confidence level test, can quote the characteristic parameter of other and temperature correlation.
The second step of this mode of execution of foundation method of the present invention is to identify connected sensor or the example of actuator types by means of the characteristic features of sensor or actuator itself as the response of the manipulation to by controller 17 or its functional software.In order to determine the sensor or the actuator types that connect, can be by two method step combinations while needs.Also can characterize and measure parameter and repeat described method step one of them or described two method steps by other.
After asking for the type of connected exhaust gas oxygensensor 14, can in controller 17, automatically carry out confidence level test and the protection of the crucial application parameter to exhaust gas oxygensensor 14.In the time that the value of application parameter is unreliable, key function that can deexcitation exhaust gas oxygensensor 14 and send corresponding warning or error reporting.As an alternative, in the time that the value of application parameter for the exhaust gas oxygensensor 14 of current type is unreliable, can also changes the numerical value not crucial for described type and send if desired corresponding warning or error reporting.Can avoid for example because the overheated exhaust gas oxygensensor 14 that causes damages by these two kinds of replacement schemes.
After identifying exhaust gas oxygensensor 14 types by foundation method of the present invention, can also adjust when needed the basic configuration matching be connected sensor type, described basic configuration is guaranteed the fundamental function of exhaust gas oxygensensor 14 and the basis as other application.The manual basic application that can avoid thus time-consuming and easily make mistakes.
Claims (10)
- For identification be connected on controller (17) or be the method for the sensor (14) of joint arrangement or the type of actuator, comprising:-measure described sensor (14) or actuator at least one characterize at least one of interface of measuring parameter or described sensor (14) or actuator and characterize and measure parameter, and-by described at least one characterize and measure parameter and ask for the type of described sensor (14) or actuator.
- 2. the method for claim 1, is characterized in that, at least one sign measurement parameter of described at least one sign measurement parameter and the characteristic features of described sensor (14) or actuator have to be contacted directly.
- 3. method as claimed in claim 1 or 2, it is characterized in that, the characteristic features of the sensor (14) at least one sign measurement parameter and the described controller (17) of described at least one sign measurement parameter or the interface of actuator has to be contacted directly.
- 4. method as claimed any one in claims 1 to 3, is characterized in that, described sensor (14) is exhaust gas oxygensensor.
- 5. the method as described in any one in claim 1 to 4; it is characterized in that; after asking for the type of described sensor (14) or actuator, the application parameter of described sensor (14) or actuator is carried out to confidence level test and/or protection.
- 6. method as claimed in claim 5, is characterized in that, in the time identifying insecure value of application parameter, and at least one function of sensor (14) or actuator and/or give a warning and/or send error reporting described in deexcitation.
- 7. method as claimed in claim 5, is characterized in that, in the time identifying insecure value of application parameter, described application parameter is converted to reliable value for the type of identifying of described sensor (14) or actuator.
- 8. the method as described in any one in claim 1 to 7, it is characterized in that, after asking for the type of described sensor (14) or actuator, the configuration that the application parameter enforcement of described sensor (14) or actuator is arranged for the type of asking for of described sensor (14) or actuator.
- 9. computer program, in the time that described program is moved on computer or controller (17), described computer program is carried out the Overall Steps of the method as described in any one in claim 1 to 8.
- 10. there is the computer program of program-code, described program-code is stored on machine-readable carrier, in the time that described program is moved on computer or controller (17), described computer program is for carrying out the method as described in claim 1 to 8 any one.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102012219073.2 | 2012-10-19 | ||
| DE201210219073 DE102012219073A1 (en) | 2012-10-19 | 2012-10-19 | Method for detecting type of control device attached to sensor or actuator of internal combustion engine of motor car, involves measuring characteristic measured variable of sensor or actuator or interface of sensor or actuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103775224A true CN103775224A (en) | 2014-05-07 |
Family
ID=50436990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310571150.3A Pending CN103775224A (en) | 2012-10-19 | 2013-10-18 | Method for detecting type of sensor or actuator connected to control unit or adapted for connection |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN103775224A (en) |
| DE (1) | DE102012219073A1 (en) |
| FR (1) | FR2997185B1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105383324A (en) * | 2015-10-30 | 2016-03-09 | 北京新能源汽车股份有限公司 | Electric automobile and identity recognition system and method of driving motor of electric automobile |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016009456A1 (en) * | 2016-08-03 | 2018-02-08 | Man Truck & Bus Ag | Method for adapting a control unit to a soot sensor which can be connected to the control unit |
| FR3111951B1 (en) * | 2020-06-29 | 2022-06-17 | Vitesco Technologies | Engine controller suitable for identifying an unsuitable richness sensor and associated method |
| FR3111950B1 (en) * | 2020-06-29 | 2022-06-17 | Vitesco Technologies | Engine controller suitable for identifying an unsuitable richness sensor and associated method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4928518A (en) * | 1988-02-25 | 1990-05-29 | Nissan Motor Company, Limited | Oxygen sensor operability sensing arrangement |
| GB2320577A (en) * | 1996-12-17 | 1998-06-24 | Alba Diagnostics Ltd | Testing device for oxygen sensors in vehicle engine management systems |
| US20010002550A1 (en) * | 1998-06-29 | 2001-06-07 | Hong Zhang | Method for checking the dynamic behavior of a measuring sensor in the exhaust tract of an internal combustion engine |
| US20020133242A1 (en) * | 2001-03-19 | 2002-09-19 | Martin Leven | Test method for verifying correct matching of an exhaust gas oxygen sensor and a vehicle engine |
| CN1386971A (en) * | 2001-05-22 | 2002-12-25 | 三菱电机株式会社 | Device and method for diagnosing fault of O2 sensor |
| DE10320285A1 (en) * | 2003-05-07 | 2004-12-02 | Robert Bosch Gmbh | Method for operating an piezoelectric actuator especially for motor vehicle fuel-injection device, requires detecting at least one characteristic of actuator for use in identifying its property class |
| CN101151176A (en) * | 2005-04-07 | 2008-03-26 | 罗伯特·博世有限公司 | Calculation of the plausibility of sensor signals in the event of a collision |
| CN201269862Y (en) * | 2008-09-24 | 2009-07-08 | 比亚迪股份有限公司 | Failure monitoring apparatus for oxygen sensor |
-
2012
- 2012-10-19 DE DE201210219073 patent/DE102012219073A1/en active Pending
-
2013
- 2013-10-17 FR FR1360115A patent/FR2997185B1/en not_active Expired - Fee Related
- 2013-10-18 CN CN201310571150.3A patent/CN103775224A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4928518A (en) * | 1988-02-25 | 1990-05-29 | Nissan Motor Company, Limited | Oxygen sensor operability sensing arrangement |
| GB2320577A (en) * | 1996-12-17 | 1998-06-24 | Alba Diagnostics Ltd | Testing device for oxygen sensors in vehicle engine management systems |
| US20010002550A1 (en) * | 1998-06-29 | 2001-06-07 | Hong Zhang | Method for checking the dynamic behavior of a measuring sensor in the exhaust tract of an internal combustion engine |
| US20020133242A1 (en) * | 2001-03-19 | 2002-09-19 | Martin Leven | Test method for verifying correct matching of an exhaust gas oxygen sensor and a vehicle engine |
| CN1386971A (en) * | 2001-05-22 | 2002-12-25 | 三菱电机株式会社 | Device and method for diagnosing fault of O2 sensor |
| DE10320285A1 (en) * | 2003-05-07 | 2004-12-02 | Robert Bosch Gmbh | Method for operating an piezoelectric actuator especially for motor vehicle fuel-injection device, requires detecting at least one characteristic of actuator for use in identifying its property class |
| CN101151176A (en) * | 2005-04-07 | 2008-03-26 | 罗伯特·博世有限公司 | Calculation of the plausibility of sensor signals in the event of a collision |
| CN201269862Y (en) * | 2008-09-24 | 2009-07-08 | 比亚迪股份有限公司 | Failure monitoring apparatus for oxygen sensor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105383324A (en) * | 2015-10-30 | 2016-03-09 | 北京新能源汽车股份有限公司 | Electric automobile and identity recognition system and method of driving motor of electric automobile |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102012219073A1 (en) | 2014-04-24 |
| FR2997185B1 (en) | 2018-05-25 |
| FR2997185A1 (en) | 2014-04-25 |
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Application publication date: 20140507 |
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