CN101334662B - Automobile electric control unit calibration system and method based on ASAP standard - Google Patents
Automobile electric control unit calibration system and method based on ASAP standard Download PDFInfo
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Abstract
The invention provides an automobile electronic control unit marking system and a method on the basis of ASAP standard, relating to the field of automobile electronic control technique. The ASAP standard is adopted to describe the marking/monitoring data property; the map file of an ASAP editing module on the basis of ECU is used for generating an ASAP database which is used for describing the marking/monitoring data property; an upper host machine configures the working environment according to the ASAP database, uses a CAN bus to carry out communication with the ECU by an XCP protocol, emits a marking control command, receives the ECU monitoring data, carries out the display, storage and analysis of the monitoring data, and realizes the marking and the monitoring to ECU parameters. The method of the invention overcomes the defects that the existing marking method has nonstandard data management, is difficult to be adapted to the changes of the ECU types and the communication interfaces of the ECU and has poor generalization, and improves the generalization and the adaptability of the marking system, thus improving the efficiency of the marking operation.
Description
Technical field
The present invention relates to computing machine and automatic control technology, particularly technical field of automotive electronics, mainly is the calibration technique of a kind of vehicle electronic control unit based on the ASAP standard (ECU, Electronic Control Unit).
Background technology
Vehicle electronic control unit is a very complicated process from the research and development prototype to forming product.The course of work of engine and even whole vehicle all is very complicated dynamic, non-linear, mixing time-varying system with corresponding hysteresis, their performance depends on a large amount of mechanical kineticss and thermodynamic parameter, very difficult usefulness mathematical model is accurately accurately expressed, for making vehicle reach optimum properties, must demarcate accurately the controlled variable of electric-control system, make its controlled variable operation according to optimum.
Demarcation is meant the various performance requirements according to car load, as dynamic property, economy, discharging and subsidiary function etc., adjust, optimize and definite car load on the operation of each electronic equipment control module and the control algolithm of controlled variable.There are two aspect defectives mostly in existing automobile ECU calibration system: the one, and lack of standardization on data (comprising calibrating parameters and measurement parameter) definition and storing mode, do not have versatility, caused data management inconvenience, made that adaptive faculty was not enough when calibration system was faced the ECU that different manufacturers provide.The 2nd, the communication protocol versatility that is adopted is with portable not enough, even adopt the communication protocol of definition voluntarily, this makes along with the variation of ECU communication interface software and hardware type must be developed calibration system again, seriously limit the versatility of matching and calibration system, caused a large amount of manpower and materials wastes.
Chinese patent application: diesel/natural gas dual-fuel engine is with the scaling method of injection pump and system (application number: 200310109935.5) proposed a kind of diesel/natural gas dual-fuel engine and specifically formed with the scaling method of injection pump and a control system finishing this method, but do not related to the data management of calibration system.Chinese patent application: based on CCP (CAN Calibration Protol, the CAN bus is demarcated agreement) the mixed power electric car controller scaling method of agreement (application number: 200410003472.9) with based on the universal embedded caliberating device of CCP agreement and method (application number: 200510061162.7) disclose a kind of automobile controller scaling method of the CCP of employing agreement, provide solution at the problems referred to above two, but it can only be applicable to CAN (Control Area Network, controller local area network) bus and agreement, can not adapt to as TCP/IP, USB etc., and do not relate to the data management of calibration system equally.
The present invention is directed in the existing calibration system data definition and storage mode is lack of standardization and the problem of communication protocol versatility deficiency, automobile electronic control unit scaling method and the system of a kind of employing application system standardization effort group ASAP (ApplicationsSystems Standardization Working Group) standard and XCP (Universal CalibrationProtocol, general calibration agreement) are proposed.
Summary of the invention
Do not match and data storage method problem lack of standardization in order to solve the interface that controller that different manufacturers provide and calibration system exist, and support communication protocol widely, the present invention to propose a kind of vehicle electronic control unit calibration system and method with versatility.This method adopts the ASAP standard to carry out the management of interface specification and data, adopt XCP as communication protocol, not only can realize the function of existing scaling method, and the method for interchanging data used in the vehicle electronic control unit performance history and soft, hardware tools are carried out standardization, can support CAN and can not add with changing to be transplanted to multiple basic communication protocols such as TCP/IP, USB, overcome the versatility that exists in the current calibration technique, the defective of bad adaptability.
The technical scheme that the present invention solves the problems of the technologies described above is: design a kind of calibration system of the ASAP of meeting standard architecture, system comprises host computer demarcation control module, ASAP editor module and ECU slave computer demarcating module.The ECU bottom software that the ASAP editor module provides different manufacturers generates dissimilar description ECU variablees in compiling link process and the mapped file (map file) of storage is resolved, edited, and generates the ASAP database file of the standard of describing nominal data, monitor data and interface message; Host computer is demarcated control module and is disposed its working environment according to the ASAP database file, follows the XCP agreement and realizes and the communicating by letter of ECU by the CAN bus, issues the demarcation control command, receives the ECU monitor data, and realization is to demarcation and the monitoring of ECU; ECU slave computer demarcating module receives demarcation and the upload command that host computer is demarcated control module, finishes the demarcation of ECU controlled variable and the collection of monitoring parameter are uploaded.
The present invention demarcates between control module and the ECU at host computer, adopt the ASAP2 standard to describe nominal data, monitor data variable and the interface message of storing among the ECU, and, realize demarcation and monitoring to ECU according to the ASAP database configuration calibration system working environment of gained.Described ASAP editor module comprises map document analysis module, parameter editor module, the parsing of ASAP database and generation module, and each module realizes following function: resolve the demarcation and the monitor data information that define in the map file of ECU; Carry out additions and deletions to demarcating with monitor data, editor demarcates and attributes such as monitor data address, type, precision, scope, expression; Resolve existing ASAP database and generate the ASAP database for editor and according to demarcating with monitor data information.Described host computer is demarcated control module except the function that comprises XCP communication module, demarcating module, the existing scaling method of data monitoring module realization, also comprise parsing of ASAP database and parameter configuration module, from the ASAP database, read the configuration information of demarcating with monitor data and also in view of the above demarcation and monitor data are managed; The ECU that different suppliers is provided carries out the ASAP database that timing signal only need be changed correspondence, thereby makes host computer demarcation control module have versatility and adaptability.Described ECU slave computer demarcating module comprises CAN driver module and XCP communication module, communicates by the XCP agreement with the host computer demarcating module and realizes demarcating and monitoring function.
The present invention propose based on the vehicle electronic control unit scaling method, may further comprise the steps:
1) the ASAP editor module map file that reads in ECU is resolved, and editor nominal data, monitor data also define its attribute, generate the ASAP database file.Promptly from mapped file, read variable name, address, data type, the array size of whole parameters in the slave computer demarcating module, write a parameter list; To the parameter in the tabulation increase, deletion, editing parameter attribute; Replenish parameters precision, span, the expression that can not represent in the mapped file is set; Parameter and attribute thereof according to the tabulation inediting are shown as structured text with the A2ML syntax table, generate the ASAP database.
2) read in the ASAP database file during initialization of host computer demarcating module, and configuration calibration system working environment; Send to demarcate control command and call function in the demarcating module, realize the demarcation to the ECU controlled variable, and receive the monitor data that ECU uploads and store/analyzes/show, realization is to the monitoring of the automobile operating state parameter of storing among the ECU.
3) ECU slave computer demarcating module is realized the demarcation to the ECU controlled variable according to host computer demarcating module control command, and the automobile operating state monitoring parameter of storing among the ECU is uploaded.Host computer parameter calibration module is taken out parameter corresponding address, address offset, conversion method from the ASAP database, carry out Parameters Transformation according to conversion method; Data pointer is set, need determines the start address of target component in the ECU internal memory of demarcation; Send conversion parameter to ECU slave computer demarcating module, and the address field length information, the target component that needs demarcation substituted with conversion parameter.Read the data that ECU slave computer demarcating module uploads and obtain the DAQ frame; Resolve the DAQ frame and obtain monitor data; Deposit monitor data in the ipc monitor data buffer.
ECU calibration system and method that the present invention proposes, can carry out standardization to the method for interchanging data used in the performance history and soft, hardware tools by adopting the ASAP standard, can support multiple basic communication protocol by adopting the XCP agreement, has good versatility, adaptability, the ECU that can provide different manufacturers easily demarcates, solved because the interface that the controller that different manufacturers provide exists does not match, the nonstandard problem of data management, thereby reduce the cost of development of vehicle electric field and shorten the construction cycle, guarantee product quality.
Description of drawings
Fig. 1. calibration system modular structure synoptic diagram of the present invention
Fig. 2 .ASAP editor module functional block diagram
Fig. 3 .ECU functions of modules structured flowchart
Fig. 4. host computer demarcating module realization flow figure
Fig. 5. host computer demarcating module parameter calibration process flow diagram
Fig. 6. host computer demarcating module parameter monitoring process flow diagram
Embodiment
The ASAP standard is a cover matching and calibration standard, and the ASAP standard mainly is made up of three parts, i.e. ASAP1, ASAP2, ASAP3.With the interface standard between the opertaing device, the physics that has defined between application system and the ECU is connected with logic the ASAP1 part as application layer, realizes unified management is carried out in the levels communication of matching and calibration system, and XCP is a kind of of ASAP1a.ASAP2 partly realizes all nominal datas, monitor data, interface message etc. are carried out unified management, ECU function and interface and calibration information are carried out the description of standards and normsization, and the ASAP description document (* .a21 file) that generates by this standard is as the database of calibration system.The ASAP2 standard adopts ASAP2 meta-language A2ML (ASAP2Meta Language) language, with structurized text monitoring and calibrating parameters and interface message thereof are described, each parameter is represented with a structure, passes through each attribute of keyword tag parameter in structure.The ASAP database is the platform that carries out exchanges data between the various kinds of equipment that comprises among the ASAP1, this just makes the calibration system that meets the ASAP2 standard can handle the ECU interface message that different manufacturers provide in an identical manner, can the ECU that different manufacturers provide be demarcated, thereby have versatility.
Below in conjunction with accompanying drawing and instantiation the specific embodiment of the present invention is described.
As shown in Figure 1, calibration system hardware of the present invention is made up of the calibrated and calculated machine (host computer) that has the CAN interface function and the vehicle electronic control unit (slave computer) of the one or more CAN of having bus communication ports, and connects by the CAN bus.
System demarcates control module, ECU slave computer demarcating module and ASAP editor module by host computer and forms.Host computer is demarcated control module according to ASAP database file configuration calibration system working environment, follows the XCP agreement and realizes and the communicating by letter of ECU by the CAN bus, issues the demarcation control command, receives the ECU monitor data, and realization is to demarcation and the monitoring of ECU.Specifically form by user interface control module, data management module, communication module, XCP driver module and CAN driver module.Wherein, user interface control module controls display interface split screen simultaneously shows calibration interface and monitoring interface, and calibration interface is used to realize the parameter calibration operation as the man-machine interface of proving operation, and monitoring interface shows the monitor data of ECU; Data management module is resolved demarcation, measurement data and the interface message in the ASAP database, and the configuration parameter attribute is for the user interface display management; Encapsulation XCP driver module and CAN driver module in the communication module for user interface provides and the communicating by letter of ECU, realizes that calibrating parameters issues, monitoring parameter receives and other control function.ECU slave computer demarcating module comprises that also CAN drives and the XCP driver module except ECU work control module, receive demarcation and upload command that host computer is demarcated control module, finishes the demarcation of ECU controlled variable and the collection of monitoring parameter are uploaded.The ECU bottom software that the ASAP editor module provides different manufacturers generates dissimilar description ECU variablees in compiling link process and the mapped file (map file) of storage is resolved, edited, generate the ASAP database file of the standard of describing nominal data, monitor data and interface message, demarcate control module for host computer and dispose its working environment, thereby ECU control program and calibrating procedure are connected.
Be illustrated in figure 2 as the functions of modules structured flowchart of ASAP editor module, comprise that mainly the parsing of map file variable, parameter editor's (increase, deletion, attributes edit), ASAP database are resolved, the ASAP database generates four functional modules.
Map file variable parsing module is applicable to the situation that generates the ASAP database from the map file first, from the map file, read in the slave computer demarcating module essential informations such as variable name, address, data type, array size of whole variablees, write a parameter list.The parameter editor module according to the control command of host computer demarcating module to demarcation and monitoring parameter in the tabulation increase, deletion, editing parameter attribute, the parameter that definite needs are demarcated/monitored, and replenish the parameter attribute that can not represent in the map file such as precision, span, expression etc. are set, demarcated, the details of monitoring parameter.
ASAP database generation module is shown as structured text according to parameter that has editted in the parameter list and attribute thereof with the A2ML syntax table, generates the ASAP database.ASAP database parsing module is applicable to existing ASAP database, but need its situation of making amendment, in this module, mate according to A2ML language syntax structure, resolve existing ASAP database file, obtain parameter information and write parameter list mentioned above, edit for editor module, the ASAP database is upgraded.
Be illustrated in figure 3 as ECU slave computer demarcating module structural representation, the slave computer demarcating module mainly is made up of CAN driver module and XCP driver module.The XCP driver module is followed the XCP agreement, communicates by letter with the host computer demarcating module, and the controlled variable that reception and execution host computer demarcating module send is demarcated teletype command on instruction and the monitoring parameter, thereby realizes the demarcation of ECU controlled variable and uploading of monitoring parameter.The agreement of CAN driver module encapsulation CAN communication provides calling interface for XCP drives.It is the key that realizes slave computer calibration software function that XCP drives, by XCP CTO (Command Transfer Object, the command transfer object) processor and DAQ (Data Acquisition, data are obtained) processor, STIM (DataStimulation, data activation) processor three parts form.The CTO processor just brings into operation after the ECU initialization, and the XCP session command on the monitoring CAN network receives and resolve the XCP order and the execution of host computer calibration software, sends to the host computer calibration software simultaneously and replys; If the XCP order request of host computer calibration software carries out the DAQ operation, then this operational order is passed to the STIM processor, to carry out by the STIM processor, configuration DAQ parameter is also controlled its operation.The environmental parameter that the DAQ processor configures according to the STIM processor is classified the ECU monitoring parameter according to designated period, send monitor data to host computer according to the cycle of setting.
Be illustrated in figure 4 as host computer demarcating module control flow, may further comprise the steps:
(1) host computer demarcating module log-on data administration module at first loads the ASAP database corresponding with target ECU, and the ASAP parsing module parses the attribute of demarcation, monitoring parameter; (2) the initialization submodule comprises XCP and CAN messaging parameter according to the information configuration environmental parameter in the ASAP database, connects with target ECU equipment and disposes slave computer DAQ data obtain manner; (3) the host computer demarcating module is waited for user's operation, if the user has revised calibrating parameters at calibration interface, call parameters is demarcated flow process to new value and address thereof that ECU sends this parameter, the controlled variable of assigned address is carried out the demarcation of parameter and revises; (4), then send corresponding STIM control command, and realize monitoring function by the parameter monitoring flow process to ECU if the user starts/stop the DAQ data transmission at monitoring interface.
Be illustrated in figure 5 as host computer parameter calibration flow process, host computer parameter calibration module is made amendment to the parameter among the ECU, may further comprise the steps: the parametric variable name that (1) is demarcated according to user in the interface, in the ASAP database, check in information such as variable corresponding address, address offset, conversion method, and parameter is changed according to conversion method; (2) call setting data pointer commands SET_MTA among the XCP, need to determine the start address of target component in the ECU internal memory of demarcating; (3) call XCP order DNLOAD, issue the address field length information of needs demarcation and the data of demarcation to ECU; (4) revise the value of this parameter in host computer nominal data buffer zone after demarcating successfully simultaneously, finish the demarcation of controlled variable.
Be illustrated in figure 6 as host computer parameter monitoring process flow diagram, the DAQ data that ipc monitor module reception ECU uploads are also sent into the monitoring interface demonstration, and may further comprise the steps: (1) reads the data that ECU uploads, and obtains the DAQ frame; (2) resolve the DAQ frame, obtain monitor data; (3) monitor data is deposited in the ipc monitor data buffer; (4) from the monitor data buffer zone, take out monitor data and be shown to the interface; (5) wait for that the DAQ data arrive message, prepare to receive next DAQ Frame.
Calibration system of the present invention is applicable to versions such as XCP agreement 1.0 and ASAP2 agreements 1.51, standard data management and interface, improved the versatility and the adaptability of calibration system, thereby improved the efficient of staking-out work.
Claims (5)
1. based on the automobile electronic control unit ECU calibration system of application system standardization effort group ASAP standard, this system comprises, host computer is demarcated control module, ASAP editor module and ECU slave computer demarcating module, it is characterized in that, the ASAP editor module is resolved, is edited the ECU bottom software generates dissimilar description ECU variablees and storage thereof in the compiling link process mapped file, generates the ASAP database file of describing nominal data, monitor data and interface message according to the ASAP standard; Host computer is demarcated control module according to ASAP database file configuration calibration system working environment, follows general calibration XCP agreement by demarcation and the monitoring of controller local area network CAN bus realization to ECU; ECU slave computer demarcating module comprises: CAN driver module and XCP driver module, CAN driver module encapsulation CAN communication protocol, for driving, XCP provides calling interface, the XCP driver module comprises: command transfer object handles machine, data acquisition process machine, data activation processor, XCP session command on the command transfer object handles machine monitoring CAN network, receive and resolve the XCP order and the execution of host computer demarcation control module, demarcate the control module transmission to host computer simultaneously and reply; If host computer is demarcated control module and is required to carry out data acquisition operations, then this operational order is passed to the data activation processor, get parms by data activation processor configuration data; The environmental parameter that the data acquisition process machine configures according to the data activation processor is classified the ECU monitoring parameter according to designated period, send monitor data to host computer according to the cycle of setting.
2. calibration system according to claim 1 is characterized in that, described ASAP editor module further comprises, the mapped file parsing module: resolve the demarcation and the monitor data information that define in the mapped file of ECU; Parameter editor module: carry out additions and deletions to demarcating with monitor data, editor demarcates and monitor data address, type, precision, scope, expression, the ASAP database is resolved and generation module: generate the ASAP database file according to demarcating with monitor data information, and the resolution data library file.
3. calibration system according to claim 1, it is characterized in that, described ASAP database is described monitoring and calibrating parameters and interface message thereof with structurized text, and each parameter is represented with a structure, passes through each attribute of keyword tag parameter in structure.
4. based on the automobile electronic control unit ECU scaling method of ASAP standard, it is characterized in that this scaling method may further comprise the steps, the mapped file that the ASAP editor module reads in ECU is resolved, according to ASAP standard compliation nominal data, monitor data and define its attribute, generate the ASAP database file; Host computer is demarcated control module according to ASAP database file configuration calibration system working environment, follows the XCP agreement and sends demarcation, uploads control command to ECU slave computer demarcating module by the CAN bus; ECU slave computer demarcating module is according to host computer demarcating module control command, realization is to the demarcation of ECU controlled variable, and the automobile operating state monitoring parameter of storing among the ECU uploaded, host computer parameter calibration module is taken out parameter corresponding address, address offset, conversion method from the ASAP database, carry out Parameters Transformation according to conversion method; Call XCP data pointer is set, need to determine the start address of target component in the ECU internal memory of demarcation; Send conversion parameter to ECU slave computer demarcating module, and the address field length information, substituting with conversion parameter needs the target component of demarcating, and reads the data that ECU slave computer demarcating module uploads and obtains the DAQ frame; Resolve the DAQ frame and obtain monitor data, deposit it in ipc monitor data buffer.
5. scaling method according to claim 4, it is characterized in that, the step of described generation ASAP database file specifically comprises: read variable name, address, data type, the array size of whole parameters in the slave computer demarcating module from mapped file, write a parameter list; To the parameter in the tabulation increase, deletion, editing parameter attribute; Replenish parameters precision, span, the expression that can not represent in the mapped file is set; Parameter and attribute thereof according to the tabulation inediting are shown as structured text with the A2ML syntax table, generate the ASAP database.
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| CN113985839A (en) * | 2021-10-18 | 2022-01-28 | 长春一汽富晟集团有限公司 | XCP calibration test method based on TC397 development board |
| WO2023087271A1 (en) * | 2021-11-19 | 2023-05-25 | 华为技术有限公司 | Method and apparatus for calibrating electronic control unit, and vehicle |
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2008
- 2008-07-25 CN CN2008100700304A patent/CN101334662B/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104850570A (en) * | 2014-08-29 | 2015-08-19 | 北汽福田汽车股份有限公司 | Method and system for automatically generating A2L file |
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