CN102787932A - Apparatus and method for matching and calibrating electric control diesel engine based on serial communication - Google Patents
Apparatus and method for matching and calibrating electric control diesel engine based on serial communication Download PDFInfo
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- CN102787932A CN102787932A CN2012103089982A CN201210308998A CN102787932A CN 102787932 A CN102787932 A CN 102787932A CN 2012103089982 A CN2012103089982 A CN 2012103089982A CN 201210308998 A CN201210308998 A CN 201210308998A CN 102787932 A CN102787932 A CN 102787932A
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Abstract
The invention relates to an apparatus and method for matching and calibrating an electric control diesel engine based on serial communication. The apparatus mainly comprises a PC (personal computer) and an electric control unit (ECU). The PC is connected with the ECU through a serial port line, and the ECU is connected with a diesel engine system through a wire harness. The MAP data of the ECU and a controller parameter are calibrated by the PC based on the protocol of a host-slave working mode, and the parameter of an engine in operation is monitored. An actuator of the diesel engine system is driven to work by an MCU (micro-programmed control unit) with an extended memory according to the revised MAP data, the information fed back by a sensor and a control strategy to realize quick real-time online calibration to the engine, and thus, the engine works in an optimal state, the optimal dynamic property and fuel economy are acquired when the discharging requirement is met, the efficiency is increased, and the development cost is reduced.
Description
Technical field
The field is demarcated in the monitoring that the present invention relates to motor, mainly is a kind of electric-control diesel engine matching and calibration apparatus and method based on serial communication, is particularly useful for the matching and calibration of DENG stand test.
Background technique
Along with the increasingly stringentization of countries in the world to Abgasgesetz; And to automotive safety, energy-saving and environmental protection, comfortable, easily require increasingly high; Promoting the electric-control diesel engine function constantly strengthens; Control Parameter constantly increases, and controlling method becomes increasingly complex, and the requirement of control accuracy is also improved constantly.Therefore need the parameter of monitoring engine also more and more, the workload of demarcation is many and loaded down with trivial details.
Domestic electric-control diesel engine calibration system generally adopts the off-line calibration method, by the status parameter of monitoring interface detection of engine, and the Control Parameter of the current correspondence of hand-kept.When needs are revised irrational Control Parameter when improving the performance of motor, then must shutdown work, off-line is revised Control Parameter; Repeat above process, meet the demands up to the complete machine performance, staking-out work is accomplished; This calibration method automaticity is low, and real-time performance is poor, can not carry out real-time online to the Control Parameter of system and revise; Reduce demarcation efficient, prolonged the nominal time.
External electric-control motor monitoring calibration system mainly contains the INCA product of ETAS company exploitation; With the product of the CANape of Vector company exploitation, the both can realize perfect on-line proving, but PC and the specific CAN card hardware supports of ECU needs; Cost an arm and a leg; Versatility is poor, carries inconvenience, has increased development cost.The calibrating parameters of electric-control diesel engine monitoring at present is many, and the staking-out work amount is big, and existing monitoring calibration system automaticity is low, real-time is poor, carry problems such as inconvenience and development cost height.
Summary of the invention
The calibrating parameters of electric-control diesel engine monitoring at present is many, and the staking-out work amount is big, and existing monitoring calibration system automaticity is low, real-time is poor, carry problems such as inconvenience and development cost height.The present invention utilizes computer and electronic technology, and a kind of electronic controlled diesel engine matching and calibration apparatus and method based on serial communication are provided.
The present invention realizes through following technological scheme: be made up of upper-position unit and lower-position unit.Upper-position unit adopts PC as main frame, comprises monitoring calibration interface and serial communication interface; Lower-position unit adopts ECU to constitute as slave, is made up of power module, communication module, MCU module, driver module and signal processing module; PC is connected with ECU through Serial Port Line, and ECU is connected through wire harness with diesel engine system to be calibrated; PC is demarcated MAP data, the controller parameter of ECU through serial communication; The MCU module of band extended menory is according to the information and the control strategy of amended MAP data, diesel engine system sensor feedback; Drive the final controlling element work of engine system, realize DENG is carried out the quick real-time on-line proving.
The MCU module of ECU band extended menory according to the invention, the storage of outside expansion 2M SRAM and 4M FLASH.
The present invention provides a kind of electric-control diesel engine matching and calibration method based on serial communication simultaneously, adopts the following step:
Step 1: control program generates the control program binary file and the map data convert the mot binary file through upper-position unit to data through the codewarrior compiler, downloads to through serial communication in the different sectors of flash storage of MCU module;
Step 2: ECU power up, the map data in the flash storage copy the working area that extends out in the SRAM storage to;
Step 3: the diesel engine system sensor feeds back to MCU module through wire harness through signal processing module with the running state of motor;
Step 4: the variable of monitoring as required, the upper computer selecting name variable is analyzed the map file that codewarrior produces through background program; Through Serial Port Line with address of variable that obtains and types of variables information; Send to communication module, communication module carries out level conversion and is transferred to the MCU module, and the MCU module is according to the order that receives; Read the variate-value in the storage, and return to upper-position unit;
Step 5: the engine operating state that obtains according to monitoring; Control Parameter is carried out on-line proving; Lower-position unit receives the backup area work that the map data that will extend out the working area among the SRAM before the new map data copy SRAM to; After receiving new map data completion, the working area work that extends out SRAM is got back in redirect.
Control program of the present invention and MAP storage are in the different page or leaf of flash storage; The SRAM of expansion marks off one and demarcates RAM; Corresponding one by one with the MAP data storing section that is stored in the flash storage, demarcation RAM is divided into the working area again and backup area is used for the MAP data are carried out proving operation.
PC according to the invention and communicating by letter of ECU are based on the mode of operation of principal and subordinate's machine; Promptly communication process sends initiation command by upper-position unit each time; Upper-position unit sends the message that comprises communication instruction and dependent instruction parameter; The passive reception of lower-position unit in the time that limits, is carried out corresponding operation and return information after the verification.
Monitoring calibration interface in the native system on the PC adopts OO MATLAB GUI to develop, and the program of ECU adopts the design of C language under the CodeWarrior of freescale company translation and compiling environment.The MCU module of band extension storage is the core of ECU.That the MCU chip adopts is the MPC561 that freescale company produces, and extends out the storage space of 2M SRAM and 4M FLASH.Control program and map data are carried out the erasable operation of Denging through serial communication to flash, are cured to extend out among the flash, and when ECU cuts off the power supply, drop-out not.The SRAM that extends out marks off a particular memory (demarcating RAM), and it is corresponding one by one with the map data storing section that is stored in the flash internal memory.Calibration zone is divided into working area and backup area again, when carrying out timing signal, copies former map data to backup area from the working area, and amended map data send to the working area that extends out SRAM from upper-position unit.After transmission finishes, jump to working area work, injection program is gone interpolation according to new MAP diagram data, can not conflict mutually with interpolation procedure in the calibration process guaranteeing, keeps the normal operation of injection program and motor.
The invention has the beneficial effects as follows:
1. can demarcate fast DENG, improve efficient, practice thrift development cost;
2. the erasable operation of the flash that can extend out is solidificated in control program and MAP data among the flash, and ECU when outage be obliterated data not;
Do not need expensive hardware supports 3.PC communicate by letter between machine and the ECU, versatility is good, and easy to carry;
4. the storage space of expansion is big, can store more MAP data, better demarcates engine performance, satisfies discharging and travelling comfort requirement, obtains better power character and Economy.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 sends lower-position unit command message form for upper-position unit;
Fig. 3 is lower-position unit passback upper-position unit infomational message form;
Fig. 4 is a flash operating structure schematic representation;
Fig. 5 is the monitoring flow chart;
Fig. 6 is for demarcating flow chart.
Embodiment
Below in conjunction with accompanying drawing embodiments of the invention are elaborated.
Apparatus of the present invention are made up of upper-position unit and lower-position unit.Upper-position unit adopts PC as main frame, comprises monitoring calibration interface and serial communication interface; Lower-position unit adopts ECU to constitute as slave, is made up of power module, communication module, MCU module, driver module and signal processing module; PC is connected with ECU through Serial Port Line, and ECU is connected through wire harness with diesel engine system to be calibrated; PC is demarcated MAP data, the controller parameter of ECU through serial communication; The MCU module of band extended menory is according to the information and the control strategy of amended MAP data, diesel engine system sensor feedback; Drive the final controlling element work of engine system, realize DENG is carried out the quick real-time on-line proving.
The MCU module of ECU adopts the MPC561MZP56 chip, extends out the storage space of 2M SRAM and 4M flash, and the MAP data of storage are 128 MAP figure.
It is said that upper-position unit sends to the message format such as the accompanying drawing 2 of lower-position unit, beginning flag: with the ASCII character (0x2B) of character "+" origin identification as message; Instruction coding: according to the operational order of lower-position unit setting.Order parameter length: specify the order parameter partial-length of following thereafter (is unit with the byte); Order parameter: the related data that each instruction is corresponding.Check byte: be used for whole message is carried out verification, prevent loading error occurring.For complete message, all later byte additions of beginning flag should equal (comprising check byte) integral multiple of 0x100.
The message format such as the accompanying drawing 3 of lower-position unit passback upper-position unit information are said, and beginning flag: the ASCII character of character "+" (0x2B) also is used as the origin identification of back information; State encoding: the state encoding after instruction is carried out; Return data: the return data after instruction is carried out, length is stipulated by corresponding instruction; Check byte: be used for back information is carried out verification, prevent loading error occurring.For complete information, all later byte additions of beginning flag should equal (comprising check byte) integral multiple of 0x100.
Level conversion between the RS232 serial communication driving of communication module completion PC and the SCI communication interface of single-chip microcomputer MPC561, the antijamming capability when improving communication guarantees the safety and stability of communicating by letter.
As shown in Figure 4; Control program and MAP data are carried out the binary file of data transfer generation mot respectively through codewarrior compiler and upper-position unit, through serial communication mode flash is carried out erasable operation, and are cured to and extend out in the flash storage; The flash memory chip that extends out of this device is MBM29PL3200BE90PFV; Totally 18 sectors, control program begins store data from first sector, and the map data are since the 7th sector store data; When making the outage of its ECU, drop-out not.
Upper-position unit, lower-position unit communication baud rate are set at 115200bps, and communication protocol is based on the mode of operation of principal and subordinate's machine, and corresponding operation and return information are carried out in the passive reception of lower-position unit after the verification.
The variable of monitoring as required, the upper computer selecting name variable is analyzed the map file that codewarrior generates through background program; Through Serial Port Line with address of variable that obtains and types of variables information; Send to communication module, communication module carries out level conversion and is transferred to the MCU module, and the MCU module is according to the order that receives; Read the variate-value in the storage, and return to upper-position unit.
As shown in Figure 5, for monitor procedure, the variable of monitoring as required, the upper computer selecting name variable is analyzed codewarrior through background program and is generated the map file, with address of variable that obtains and types of variables information, sends to communication module through Serial Port Line.For example we want this variable of detection of engine rotating speed, and name variable is Engine_Speed_EMS, and the address of variable that obtains Engine_Speed_EMS is 0X004016D0; Types of variables is floating type (float).According to communication protocol, upper-position unit transmission beginning flag position (0X 2B), monitor command coding (0X 0A), order parameter length (0X 06), shared space (0X 04), address of variable (0X 004016D0) and the check bit (0X 77) of types of variables arrive lower-position unit.Lower-position unit receives order, reads the variate-value of address in 0X004016D0, and real-time returning is presented on the monitoring calibration interface.
As shown in Figure 6, for the on-line proving process, when ECU powers on, copy to and extend out in the SRAM working area being stored in the map data that extend out among the FLASH.According to detected engine operating state, revise the MAP data, the working state of adjustment motor makes it be operated in optimal state.The communication protocol based on the mode of operation of principal and subordinate's machine according to the rules, upper-position unit are sent on-line proving opening flag position earlier to lower-position unit, and lower-position unit receives when revising request, and the map data copy backup area to from the working area.After having copied, control program is adjusted to the work of SRAM backup area, and the SRAM working area receives data.After the new MAP data of reception finished, the work of SRAM working area was returned in redirect.Control program is according to new MAP data, the information and the control strategy of sensor feedback; Drive the final controlling element work of diesel engine system; The feedback DENG working state of sensor in real time is to ECU simultaneously; Be transferred to upper-position unit and be presented at the monitoring calibration interface in real time through Serial Port Line, realize motor on-line proving fast.
Present embodiment provided detailed mode of execution, but protection scope of the present invention is not limited to following embodiment being to implement under the prerequisite with the invention technological scheme.
Claims (5)
1. the electric-control diesel engine matching and calibration device based on serial communication is made up of upper-position unit and lower-position unit, it is characterized in that: upper-position unit adopts PC as main frame, comprises monitoring calibration interface and serial communication interface; Lower-position unit adopts ECU to constitute as slave, is made up of power module, communication module, MCU module, driver module and signal processing module; PC is connected with ECU through Serial Port Line, and ECU is connected through wire harness with diesel engine system to be calibrated; PC is demarcated MAP data, the controller parameter of ECU through serial communication; The MCU module of band extended menory is according to the information and the control strategy of amended MAP data, diesel engine system sensor feedback; Drive the final controlling element work of engine system, realize motor real-time online demarcation fast.
2. the electric-control diesel engine matching and calibration device based on serial communication according to claim 1 is characterized in that: the MCU module of ECU band extended menory, the storage of outside expansion 2M SRAM and 4M FLASH.
3. electric-control diesel engine matching and calibration method based on serial communication, its step is following:
Step 1: control program generates the binary file of map data through the codewarrior compiler, and converts binary system mot file to by upper-position unit, downloads in the different sectors of flash storage of MCU module through serial communication at last;
Step 2: after ECU powers on, the map data in the flash storage are copied in the working area that extends out the SRAM storage;
Step 3: the sensor in the diesel engine system feeds back to MCU module through wire harness through signal processing module with the running state of motor;
Step 4: the variable of monitoring as required; The upper computer selecting name variable obtains address of variable and types of variables information from the map file that background program analysis codewarrior produces, send to communication module through Serial Port Line; Communication module carries out level conversion and is transferred to the MCU module; The MCU module reads the variate-value in the storage, and returns to upper-position unit according to the order that receives;
Step 5: according to the engine operating state that monitors; Its Control Parameter is carried out on-line proving; Lower-position unit receives the backup area work that the map data that will extend out before the new map data in the SRAM working area copy SRAM to; After receiving new map data completion, the working area work that extends out SRAM is got back in redirect.
4. the electric-control diesel engine matching and calibration method based on serial communication according to claim 3; It is characterized in that: control program and MAP storage are in the different page or leaf of flash storage; The SRAM of expansion marks off one and demarcates RAM; Corresponding one by one with the MAP data storing section that is stored in the flash storage, demarcation RAM is divided into the working area again and backup area is used for the MAP data are carried out proving operation.
5. according to claim 3 or 4 described electric-control diesel engine matching and calibration methods based on serial communication; It is characterized in that: PC and communicating by letter of ECU are based on the mode of operation agreement of principal and subordinate's machine; Promptly communication process sends beginning by upper-position unit each time, and upper-position unit sends the message that comprises communication instruction and dependent instruction parameter, the passive reception of lower-position unit; In the time that limits, carry out corresponding operation and return information after the verification.
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103064410A (en) * | 2012-12-28 | 2013-04-24 | 潍柴动力股份有限公司 | Method and device of calibration data transformation in engine electronic control systems |
| CN103206308A (en) * | 2013-04-18 | 2013-07-17 | 东风汽车公司 | Method for safety monitoring system of gasoline ECU (engine control unit) |
| CN104100399A (en) * | 2014-07-03 | 2014-10-15 | 重庆青和兴帮科技有限公司 | Processing method of engine control program reading optimization |
| CN104199787A (en) * | 2014-08-28 | 2014-12-10 | 北京经纬恒润科技有限公司 | Method and system for realizing function of switching calibrating pages |
| WO2015130252A1 (en) | 2014-02-28 | 2015-09-03 | Ford Otomotiv Sanayi Anonim Sirketi | An online optimization method for engine calibration |
| WO2018165831A1 (en) * | 2017-03-13 | 2018-09-20 | 深圳市鑫君特智能医疗器械有限公司 | Method and system for monitoring program variable value |
| CN109656607A (en) * | 2019-01-03 | 2019-04-19 | 广西玉柴机器股份有限公司 | A kind of full address scaling method that supporting super large nominal data amount and system |
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| CN115061457A (en) * | 2022-08-18 | 2022-09-16 | 广东西电动力科技股份有限公司 | Natural gas engine electric control system MAP optimization experimental device based on PC |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003338807A (en) * | 2002-05-20 | 2003-11-28 | Denso Corp | Communication system |
| CN200993741Y (en) * | 2006-12-13 | 2007-12-19 | 北京交通大学 | Hybrid power electric automobile matching demarcation device based on serial communication |
| US20080238192A1 (en) * | 2007-03-28 | 2008-10-02 | Mitsubishi Electric Corporation | Power feed control circuit for on-vehicle electronic control apparatuses |
| CN101684758A (en) * | 2008-09-26 | 2010-03-31 | 北京耀佳汽车电子技术有限公司 | Electronic control unit (ECU) of piezoelectric-type high-pressure common-rail injection system for vehicle diesel engine |
| CN102331350A (en) * | 2011-08-19 | 2012-01-25 | 东风康明斯发动机有限公司 | Method for calibrating electrically controlled diesel engine |
-
2012
- 2012-08-28 CN CN2012103089982A patent/CN102787932A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003338807A (en) * | 2002-05-20 | 2003-11-28 | Denso Corp | Communication system |
| CN200993741Y (en) * | 2006-12-13 | 2007-12-19 | 北京交通大学 | Hybrid power electric automobile matching demarcation device based on serial communication |
| US20080238192A1 (en) * | 2007-03-28 | 2008-10-02 | Mitsubishi Electric Corporation | Power feed control circuit for on-vehicle electronic control apparatuses |
| CN101684758A (en) * | 2008-09-26 | 2010-03-31 | 北京耀佳汽车电子技术有限公司 | Electronic control unit (ECU) of piezoelectric-type high-pressure common-rail injection system for vehicle diesel engine |
| CN102331350A (en) * | 2011-08-19 | 2012-01-25 | 东风康明斯发动机有限公司 | Method for calibrating electrically controlled diesel engine |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103064410B (en) * | 2012-12-28 | 2015-09-09 | 潍柴动力股份有限公司 | The conversion method of nominal data and device in a kind of engine electric-controlled system |
| CN103064410A (en) * | 2012-12-28 | 2013-04-24 | 潍柴动力股份有限公司 | Method and device of calibration data transformation in engine electronic control systems |
| CN103206308A (en) * | 2013-04-18 | 2013-07-17 | 东风汽车公司 | Method for safety monitoring system of gasoline ECU (engine control unit) |
| WO2015130252A1 (en) | 2014-02-28 | 2015-09-03 | Ford Otomotiv Sanayi Anonim Sirketi | An online optimization method for engine calibration |
| CN104100399A (en) * | 2014-07-03 | 2014-10-15 | 重庆青和兴帮科技有限公司 | Processing method of engine control program reading optimization |
| CN104199787B (en) * | 2014-08-28 | 2017-08-11 | 北京经纬恒润科技有限公司 | A kind of method and system for realizing demarcation page handoff functionality |
| CN104199787A (en) * | 2014-08-28 | 2014-12-10 | 北京经纬恒润科技有限公司 | Method and system for realizing function of switching calibrating pages |
| WO2018165831A1 (en) * | 2017-03-13 | 2018-09-20 | 深圳市鑫君特智能医疗器械有限公司 | Method and system for monitoring program variable value |
| CN109656607A (en) * | 2019-01-03 | 2019-04-19 | 广西玉柴机器股份有限公司 | A kind of full address scaling method that supporting super large nominal data amount and system |
| CN114545805A (en) * | 2020-11-24 | 2022-05-27 | 中国航发商用航空发动机有限责任公司 | Method, device and system for online adjustment of control parameters of aircraft engine |
| CN114545805B (en) * | 2020-11-24 | 2023-08-04 | 中国航发商用航空发动机有限责任公司 | Method, device and system for on-line adjustment of aero-engine control parameters |
| CN115061457A (en) * | 2022-08-18 | 2022-09-16 | 广东西电动力科技股份有限公司 | Natural gas engine electric control system MAP optimization experimental device based on PC |
| CN117170722A (en) * | 2023-11-02 | 2023-12-05 | 广州三晶电气股份有限公司 | Address discontinuity firmware upgrading method, device and system |
| CN117170722B (en) * | 2023-11-02 | 2024-03-22 | 广州三晶电气股份有限公司 | Address discontinuity firmware upgrading method, device and system |
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Application publication date: 20121121 |