CN104281469A - Method and system for realizing refreshing and writing of ECU (Electronic Control Unit) program - Google Patents
Method and system for realizing refreshing and writing of ECU (Electronic Control Unit) program Download PDFInfo
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- CN104281469A CN104281469A CN201410424267.3A CN201410424267A CN104281469A CN 104281469 A CN104281469 A CN 104281469A CN 201410424267 A CN201410424267 A CN 201410424267A CN 104281469 A CN104281469 A CN 104281469A
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Abstract
The invention relates to a method for realizing refreshing and writing of an ECU (Electronic Control Unit) program. The method is as follows: an upper computer erases original data in the ECU according to a user-defined refreshing and writing distribution protocol; the upper computer is used for refreshing and writing data messages to the ECU according to the user-defined refreshing and writing distribution protocol; the ECU resolves the received data messages and runs the program according to the resolved data messages. In addition, the invention also comprises a system for realizing refreshing and writing of an ECU program. The system comprises the upper computer, wherein the upper computer comprises an encryption module and a data refreshing and writing module. The method and system for realizing refreshing and writing of the ECU program can be used for reducing an ECU program refreshing and writing cost, supporting various CAN (Controller Area Network) transceiving hardware equipment, supporting refreshing and writing of various program format files in a refreshing and writing software engineering, improving the software data safety and realizing ECU online refreshing and writing functions, and has a wider application range.
Description
Technical field
The present invention relates to automobile technical field, particularly relate to automobile software and write with a brush dipped in Chinese ink technical field, specifically refer to a kind of method and system realizing electronic control unit program and write with a brush dipped in Chinese ink.
Background technology
In the today to automotive performance, safety, energy-conserving and environment-protective requirement increasingly stringent, the speed goes that automobile control strategy and method update is fast, in actual car load debugging, produce and often need to be configured each ECU (Electronic Control Unit, the electronic control unit) program on car load, to upgrade, to upgrade in maintenance.
The more existing method writing with a brush dipped in Chinese ink program based on K line, serial ports etc. to automobile ECU, not only will reserve the interface write with a brush dipped in Chinese ink to ECU, and waste hardware resource, also makes location of controls be limited significantly.If underestimating of interface or operating space, can only disassemble control module from car and write with a brush dipped in Chinese ink, reinstall after completing again, make the difficulty of program of writing with a brush dipped in Chinese ink and cost greatly increase.
Through extensively retrieval, in the existing method write with a brush dipped in Chinese ink based on CAN, mostly bind with needs specific hardware tools or the program of specific format can only be write with a brush dipped in Chinese ink, safety certification or data verification method single, burn writing speed is slowly and can not support the subject matter such as to write with a brush dipped in Chinese ink online of car load.
Summary of the invention
The object of the invention is the shortcoming overcoming above-mentioned prior art, provide a kind of ECU of reduction program to write with a brush dipped in Chinese ink cost, support that multiple CAN receives and dispatches hardware device, support is write with a brush dipped in Chinese ink multiple programs formatted file in soft project and is write with a brush dipped in Chinese ink, improve the security of software data, realize the method and system that the electronic control unit program that realizes that ECU writes with a brush dipped in Chinese ink function is online write with a brush dipped in Chinese ink.
To achieve these goals, of the present inventionly realize the method and system that electronic control unit program writes with a brush dipped in Chinese ink there is following formation:
This realizes the method that electronic control unit program is write with a brush dipped in Chinese ink, and its principal feature is, described method comprises the following steps:
(1) electronic control unit described in is connected with described host computer;
(2) host computer described in is according to the raw data in the self-defined electronic control unit write with a brush dipped in Chinese ink described in sharing agreement erasing;
(3) data message is write with a brush dipped in Chinese ink to described electronic control unit according to described self-defined sharing agreement of writing with a brush dipped in Chinese ink by the host computer described in;
(4) electronic control unit described in resolves the data message received, and according to the data message working procedure after parsing.
Further, between described step (1) and (2), comprise the following steps:
(1.1) host computer described in is encrypted described data of writing with a brush dipped in Chinese ink, and data file is write with a brush dipped in Chinese ink in the encryption generating correspondence.
Further, data are write with a brush dipped in Chinese ink to described electronic control unit according to self-defined sharing agreement of writing with a brush dipped in Chinese ink by described host computer, are specially:
Described host computer is write with a brush dipped in Chinese ink the data that described encryption to be write with a brush dipped in Chinese ink file by sharing agreement write with a brush dipped in Chinese ink to described electronic control unit according to self-defined.
Further, between described step (1) and (2), further comprising the steps of:
(1.a) host computer described in carries out safety certification to self.
Wherein, described host computer carries out safety certification to self, is specially:
Described host computer transfers corresponding secure authenticated information according to the input instruction of user from dynamic link library, and carries out safety certification.
Further, after described step (1.a), further comprising the steps of:
(1.b) host computer described in judges whether safety certification is passed through, and if so, then returns above-mentioned steps (2), otherwise continues step (1.c);
(1.c) the host computer display safety certification failure described in.
Further, between described step (3) and (4), comprise the following steps:
(3.1) whether the data message described in the host computer described in judges is write with a brush dipped in Chinese ink successfully, if so, then continues step (4), otherwise continues step (3.2);
(3.2) failure is write with a brush dipped in Chinese ink in the host computer display described in.
Further, between described step (3.1) and (3.2), comprise the following steps:
Further, before described step (3.1), comprise the following steps:
(3.0.1) each Frame to data message of the host computer described in verifies, and judges that whether this Frame is by verification;
If (3.0.2) judged result is for this Frame is by verification, then continue step (3.0.3), otherwise, continue step (3.2);
(3.0.3) host computer described in is by electronic control unit extremely described for this dataframe;
(3.0.4) electronic control unit described in verifies this Frame received, and judges that whether this Frame is by verification;
(3.0.5) judged result is fed back to described host computer by the electronic control unit described in;
(3.0.6) host computer described in judges whether the judged result received is that this Frame passes through verification, if so, then returns above-mentioned steps (3.0.1), otherwise, continue step (3.2).Further, between described step (3.1) and (3.2), comprise the following steps:
If the data message described in (3.1.1) described host computer judges has been write with a brush dipped in Chinese ink, then continue step (3.1.2), otherwise continue step (3.2);
(3.1.2) host computer described in and carry out the consistency desired result of described data message between electronic control unit.
Further, the consistency desired result of described data message is carried out between described host computer and electronic control unit, comprise the following steps: the electronic control unit described in (3.1.2.1) carries out entirety verification to the data message received, and overall check results is fed back to described host computer;
(3.1.2.2) whether the overall check results described in the host computer described in judges is that overall verification is passed through, and if so, then continues step (3.1.2.3), otherwise, continue step (3.2);
(3.1.2.3) host computer described in is by electronic control unit extremely described for data message feedback command;
(3.1.2.4) data of described data message are sent to described host computer according to described data message feedback command by the electronic control unit described in;
(3.1.2.5) host computer described in carries out secondary verification to the data message that described electronic control unit feeds back, and judges check results;
If (3.1.2.6) judged result is that the data message secondary verification that described electronic control unit feeds back is passed through, then continues step (3.1.2.7), otherwise continue step (3.2);
(3.1.2.7) the host computer display described in is write with a brush dipped in Chinese ink successfully.
Further, after described step (3.2), further comprising the steps of:
(3.3) host computer described in is inquired about and the reason writing with a brush dipped in Chinese ink failure described in solving;
(3.4) whether the reason writing with a brush dipped in Chinese ink failure described in the host computer described in judges solves, if so, then continues step (3.5), otherwise returns above-mentioned steps (3.3);
(3.5) host computer described in is write with a brush dipped in Chinese ink to described electronic control unit again by writing with a brush dipped in Chinese ink unsuccessful data in described data message.
Further, electronic control unit is connected with host computer, is specially:
Described electronic control unit is connected with described host computer by CAN.
In addition, the present invention also provides a kind of and realizes based on described method the system that electronic control unit program writes with a brush dipped in Chinese ink, its principal feature is, described system comprises host computer, described host computer is in order to connect described electronic control unit, and according to the raw data in the described self-defined electronic control unit write with a brush dipped in Chinese ink described in sharing agreement erasing, and according to described self-defined sharing agreement of writing with a brush dipped in Chinese ink, data message is write with a brush dipped in Chinese ink to described electronic control unit.
Further, described host computer comprises encrypting module and data write with a brush dipped in Chinese ink module, wherein:
Described encrypting module, in order to be encrypted described data of writing with a brush dipped in Chinese ink, and data file is write with a brush dipped in Chinese ink in the encryption generating correspondence;
Described data write with a brush dipped in Chinese ink module, resolve and obtain described data message, and write with a brush dipped in Chinese ink described data message to described electronic control unit according to described self-defined sharing agreement of writing with a brush dipped in Chinese ink in order to write with a brush dipped in Chinese ink data file to described encryption before starting to write with a brush dipped in Chinese ink.
Wherein, described data are write with a brush dipped in Chinese ink module and are comprised safety certification unit and consistency desired result unit.
Further, describedly the data that data are .hex .mot or .mhx file are write with a brush dipped in Chinese ink.
Have employed the method and system realizing electronic control unit program and write with a brush dipped in Chinese ink of the present invention, there is following technique effect:
1. existing or arbitrary CAN can be selected to receive and dispatch hardware device, only just can need use in transplanting a little on client software, greatly reduce the cost of buying specific hardware;
2. the multiple format file supported of encryption function, makes the development environment of soft project have larger choice, and need not purchase or learn the development environment of specifying, can shorten the construction cycle, improve the quality of software product;
3. by encryption software, original program file is encrypted, in case data file information is revealed, again can be encrypted, in case other people monitor CAN network bus in the process of CAN transmitting-receiving simultaneously, crack the core information of product, improve the security write with a brush dipped in Chinese ink;
4. write with a brush dipped in Chinese ink sharing agreement by the ECU of self-defining a set of CAN network is self-defined and writes with a brush dipped in Chinese ink method, make the car load ECU node of this agreement of employing all can carry out online writing with a brush dipped in Chinese ink, thus realize a set ofly writing with a brush dipped in Chinese ink the object that different ECU write with a brush dipped in Chinese ink by instrument simultaneously, improve and write with a brush dipped in Chinese ink efficiency, save and write with a brush dipped in Chinese ink number of times and time.
Accompanying drawing explanation
Fig. 1 is the process flow diagram realizing the method that electronic control unit program is write with a brush dipped in Chinese ink of the present invention.
Fig. 2 is host computer of the present invention and ECU volume connection diagram.
Fig. 3 be of the present invention realize the method that electronic control unit program writes with a brush dipped in Chinese ink write with a brush dipped in Chinese ink process flow diagram.
Fig. 4 is the interface schematic diagram of encryption software of the present invention.
Fig. 5 is the interface schematic diagram that data of the present invention write with a brush dipped in Chinese ink software.
Embodiment
In order to more clearly describe technology contents of the present invention, conduct further description below in conjunction with specific embodiment.
Refer to Fig. 1, in one embodiment, this realizes the method that electronic control unit program writes with a brush dipped in Chinese ink and comprises the following steps:
(1) electronic control unit described in is connected with described host computer;
(2) host computer described in is according to the raw data in the self-defined electronic control unit write with a brush dipped in Chinese ink described in sharing agreement erasing;
(3) data message is write with a brush dipped in Chinese ink to described electronic control unit according to described self-defined sharing agreement of writing with a brush dipped in Chinese ink by the host computer described in;
(4) electronic control unit described in resolves the data message received, and according to the data message working procedure after parsing.
In a preferred embodiment, between described step (1) and (2), comprise the following steps:
(1.1) host computer described in is encrypted described data of writing with a brush dipped in Chinese ink, and data file is write with a brush dipped in Chinese ink in the encryption generating correspondence.
In the preferred embodiment of one, data are write with a brush dipped in Chinese ink to described electronic control unit according to self-defined sharing agreement of writing with a brush dipped in Chinese ink by described host computer, are specially:
Described host computer is write with a brush dipped in Chinese ink the data that described encryption to be write with a brush dipped in Chinese ink file by sharing agreement write with a brush dipped in Chinese ink to described electronic control unit according to self-defined.
In a preferred embodiment, between described step (1) and (2), further comprising the steps of:
(1.a) host computer described in carries out safety certification to self.
Wherein, described host computer carries out safety certification to self, is specially:
Described host computer transfers corresponding secure authenticated information according to the input instruction of user from dynamic link library, and carries out safety certification.
Because different vendor is for safety certification, the secret grade mode difference of product, this just requires that process of writing with a brush dipped in Chinese ink supports multiple Identity Authentication Mode, on the client by reserved DLL (Dynamic Link Library, dynamic link library) interface, and realize some typical authentication modes for user's selection; Also can be carried out the exploitation of authentication algorithm voluntarily by user, as long as meet interface specification just safety certification can be carried out simultaneously.
In the preferred embodiment of one, after described step (1.a), further comprising the steps of:
(1.b) host computer described in judges whether safety certification is passed through, and if so, then returns above-mentioned steps (2), otherwise continues step (1.c);
(1.c) the host computer display safety certification failure described in.
In a preferred embodiment, between described step (3) and (4), comprise the following steps:
(3.1) whether the data message described in the host computer described in judges is write with a brush dipped in Chinese ink successfully, if so, then continues step (4), otherwise continues step (3.2);
(3.2) failure is write with a brush dipped in Chinese ink in the host computer display described in.
In the preferred embodiment of one, before described step (3.1), comprise the following steps:
(3.0.1) each Frame to data message of the host computer described in verifies, and judges that whether this Frame is by verification;
If (3.0.2) judged result is for this Frame is by verification, then continue step (3.0.3), otherwise, continue step (3.2);
(3.0.3) host computer described in is by electronic control unit extremely described for this dataframe;
(3.0.4) electronic control unit described in verifies this Frame received, and judges that whether this Frame is by verification;
(3.0.5) judged result is fed back to described host computer by the electronic control unit described in;
(3.0.6) host computer described in judges whether the judged result received is that this Frame passes through verification, if so, then returns above-mentioned steps (3.0.1), otherwise, continue step (3.2).In the preferred embodiment of one, between described step (3.1) and (3.2), comprise the following steps:
If the data message described in (3.1.1) described host computer judges has been write with a brush dipped in Chinese ink, then continue step (3.1.2), otherwise continue step (3.2);
(3.1.2) host computer described in and carry out the consistency desired result of described data message between electronic control unit.
In the preferred embodiment of one, the consistency desired result of described data message is carried out between described host computer and electronic control unit, comprise the following steps: the electronic control unit described in (3.1.2.1) carries out entirety verification to the data message received, and overall check results is fed back to described host computer;
(3.1.2.2) whether the overall check results described in the host computer described in judges is that overall verification is passed through, and if so, then continues step (3.1.2.3), otherwise, continue step (3.2);
(3.1.2.3) host computer described in is by electronic control unit extremely described for data message feedback command;
(3.1.2.4) data of described data message are sent to described host computer according to described data message feedback command by the electronic control unit described in;
(3.1.2.5) host computer described in carries out secondary verification to the data message that described electronic control unit feeds back, and judges check results;
If (3.1.2.6) judged result is that the data message secondary verification that described electronic control unit feeds back is passed through, then continues step (3.1.2.7), otherwise continue step (3.2);
(3.1.2.7) the host computer display described in is write with a brush dipped in Chinese ink successfully.
In the preferred embodiment of one, after described step (3.2), further comprising the steps of:
(3.3) host computer described in is inquired about and the reason writing with a brush dipped in Chinese ink failure described in solving;
(3.4) whether the reason writing with a brush dipped in Chinese ink failure described in the host computer described in judges solves, if so, then continues step (3.5), otherwise returns above-mentioned steps (3.3);
(3.5) host computer described in is write with a brush dipped in Chinese ink to described electronic control unit again by writing with a brush dipped in Chinese ink unsuccessful data in described data message.
In a preferred embodiment, electronic control unit is connected with host computer, is specially:
Described electronic control unit is connected with described host computer by CAN.
In addition, the present invention also provides a kind of and realizes based on described method the system that electronic control unit program writes with a brush dipped in Chinese ink, its principal feature is, described system comprises host computer, described host computer is in order to connect described electronic control unit, and according to the raw data in the described self-defined electronic control unit write with a brush dipped in Chinese ink described in sharing agreement erasing, and according to described self-defined sharing agreement of writing with a brush dipped in Chinese ink, data message is write with a brush dipped in Chinese ink to described electronic control unit.
In a preferred embodiment, described host computer comprises encrypting module and data write with a brush dipped in Chinese ink module, wherein:
Described encrypting module, in order to be encrypted described data of writing with a brush dipped in Chinese ink, and data file is write with a brush dipped in Chinese ink in the encryption generating correspondence;
Described data write with a brush dipped in Chinese ink module, resolve and obtain described data message, and write with a brush dipped in Chinese ink described data message to described electronic control unit according to described self-defined sharing agreement of writing with a brush dipped in Chinese ink in order to write with a brush dipped in Chinese ink data file to described encryption before starting to write with a brush dipped in Chinese ink.
Wherein, described data are write with a brush dipped in Chinese ink module and are comprised safety certification unit and consistency desired result unit.
In the preferred embodiment of one, described writes with a brush dipped in Chinese ink the data that data are .hex .mot or .mhx file.
Involved in the present invention write with a brush dipped in Chinese ink framework by host computer encryption software (i.e. encrypting module), write with a brush dipped in Chinese ink client software (namely data write with a brush dipped in Chinese ink module) and ECU holds integrated bootloader software sharing, for realize general, safe, fast program write with a brush dipped in Chinese ink.
Encryption software is encrypted common formatted file, be such as .hex, .mot, .mhx, .S19 the formatted file of suffix is waited, the Custom Encryption obtained for programming writes with a brush dipped in Chinese ink file, wherein, pattern and the safe class of encryption all can by customizations, realize writing with a brush dipped in Chinese ink function to multiple programs data file by the self-defined file of writing with a brush dipped in Chinese ink generated, usage data cryptographic means in the process of data transmission is carried out in CAN, the data of transmission are encrypted, improve security, and receive and dispatch baud rate to improve burn writing speed by the CAN promoted under pattern of writing with a brush dipped in Chinese ink.
Simultaneously, in the writing with a brush dipped in Chinese ink of existing electronic control unit program, data send agreement as communications protocol, itself cannot accomplish to support multiple hardwares, so, needing to support the writing with a brush dipped in Chinese ink of multiple hardwares by writing with a brush dipped in Chinese ink client to realize, writing with a brush dipped in Chinese ink client and writing with a brush dipped in Chinese ink protocol layer based on its hardware supported to data and provide unified communication interface, namely data send agreement and use which kind of hardware without pipe, and its need call the self-defined power function writing with a brush dipped in Chinese ink sharing agreement.
In encryption, process can be carried out based on the data layout of the standards such as .hex .mot .mhx and obtain self-defining data layout, user-defined format refers to the data recording structure of file internal, the regulation of data layout and definition, by self-defining data form to the data source writing with a brush dipped in Chinese ink client and provide consolidation form.
By writing with a brush dipped in Chinese ink protocol layer by obtaining the data source of Uniform data format, according to the self-defined flow process writing with a brush dipped in Chinese ink sharing agreement, by unified communications protocol layer interface, realize writing with a brush dipped in Chinese ink, write with a brush dipped in Chinese ink to solve most of ECU the program all needing the binding of specific hardware tools or specific format can only be write with a brush dipped in Chinese ink.
Write with a brush dipped in Chinese ink between the bootloader software in client software and ECU and realize communication by CAN communication instrument, write with a brush dipped in Chinese ink client software resolve by writing with a brush dipped in Chinese ink file to encryption and process routine data according to self-defined sharing agreement of writing with a brush dipped in Chinese ink, encapsulate, and sent by CAN network, bootloader resolves data message after receiving CAN message, thus completes data and write with a brush dipped in Chinese ink.
ECU holds integrated bootloader software to be the ECU bsp driver carrying out communication with client, wherein achieves mode of operation turn function, breakpoint transmission function for Client command, and basic Flash reads and writes routine.
In addition, writing with a brush dipped in Chinese ink in process, the verification of data comprises three phases:
Stage one refers to be write with a brush dipped in Chinese ink in the process of data in transmission, and host computer and slave computer (i.e. electronic control unit) verify the Frame often received, and under only verifying the prerequisite passed through at these frame data, just can proceed to write with a brush dipped in Chinese ink; Otherwise will exit and write with a brush dipped in Chinese ink flow process, mistake is write with a brush dipped in Chinese ink in report.
Stage two refers to after all data have been write with a brush dipped in Chinese ink, and slave computer can to all data, and namely complete routine data verifies, and will verify result feedback host computer, again orders if verification is sent by, host computer; Otherwise host computer can be pointed out and be verified unsuccessfully, writes with a brush dipped in Chinese ink failure.
Stage three, verify in the stage two on the basis passed through, host computer can require that slave computer is by all data, host computer client is oppositely sent to by writing with a brush dipped in Chinese ink equipment, after host computer finishes receiving, data again with regard to receiving verify, and when only having the stage three to verify to pass through, it is successful for just thinking that this program is write with a brush dipped in Chinese ink.
In above-mentioned three phases, for the verification mode of data, different data check algorithms can be adopted, as the parity checking of standard, and verification, the canonical algorithms such as CRC check can also be self-defining checking algorithms, writing with a brush dipped in Chinese ink the interface of client port by reserved DLL (dynamic link library), provide user optional data verification method.
As shown in Fig. 2 to 5, writing with a brush dipped in Chinese ink in process, the host computer being used for writing with a brush dipped in Chinese ink (PC) software is called " client " by we, the ECU controller that will write with a brush dipped in Chinese ink is called " server ", its mainly write with a brush dipped in Chinese ink flow process be divided into write with a brush dipped in Chinese ink preparation, authentication, data transmission with verification, Server Restart, recovery default mode five key steps, concrete steps are as follows:
1. use CAN hardware device to connect the CAN network interface of PC host computer and server node or car load;
2., after being configured according to the relevant configuration requirement of ECU, file is write with a brush dipped in Chinese ink in the encryption generating user-defined format with encryption software;
3. open client software, select CAN hardware device, open and complete relative parameters setting, initialization, select the data file needing encryption, in addition, support Zhou Ligong ZLG CAN completely at present, the ValueCAN of Ying Tepeisi company, the hardware such as the USBCAN of independent development, the hardware class of support increases, and improves the choice of client;
4. power on to ECU node or car load, click " beginning " and write with a brush dipped in Chinese ink button and enter and write with a brush dipped in Chinese ink communication core process;
5. respond according to agreement for each ECU node of different CAN message ID, enter the state writing with a brush dipped in Chinese ink program preparation by order request, and by the feedback of status of preparation to client;
6. after ECU node is write with a brush dipped in Chinese ink and is ready to complete, client carries out the legitimate verification of client identity according to the safety certification pattern of customer selecting, wherein, safety certification pattern by client's customized and selection, also can be supplied to client with the form of dynamic link library simultaneously and expand;
7. authentication is by afterwards, and client writes with a brush dipped in Chinese ink sharing agreement order ECU node erasing raw data by self-defined, is used for storing the new edition routine data that will write with a brush dipped in Chinese ink;
8., after erasing, receive and dispatch, until routine data is sent completely or occurs mistake according to the routine data writing with a brush dipped in Chinese ink sharing agreement based on CAN self-defined and carry out data message before client and server;
9. after data are normally sent completely, carry out the consistency desired result of data according to the data check pattern of customer selecting and rank between client and server, wherein the checking algorithm of consistency verification of data can be undertaken customizing and selecting by client, and is supplied to client with the form of dynamic link library and expands;
10. data check errorless after, the routine data of buffer memory is write in Flash (flash memory) by server; Client command server is restarted;
11. restarted after, client can command server jump to normal mode of operation;
12. so far once complete flow processs of writing with a brush dipped in Chinese ink completed already, and new encrypt file can be selected again to write with a brush dipped in Chinese ink for ECU; Or close CAN equipment, disconnect and write with a brush dipped in Chinese ink connecting interface, terminate to write with a brush dipped in Chinese ink.
Write with a brush dipped in Chinese ink in process above-mentioned, if there is reporting an error, host computer is for the error situation occurred, investigate, can realize the function of " breakpoint transmission " under the prerequisite of ECU not power down, ECU node or car load do not need to carry out any operation, then only need be configured according to corresponding prompting, and click " beginning " is carried out writing with a brush dipped in Chinese ink again, thus realize the function of " breakpoint transmission ", substantially increase the speed and convenience write with a brush dipped in Chinese ink.
Have employed the method and system realizing electronic control unit program and write with a brush dipped in Chinese ink of the present invention, there is following technique effect:
1. existing or arbitrary CAN can be selected to receive and dispatch hardware device, only just can need use in transplanting a little on client software, greatly reduce the cost of buying specific hardware;
2. the multiple format file supported of encryption function, makes the development environment of soft project have larger choice, and need not purchase or learn the development environment of specifying, can shorten the construction cycle, improve the quality of software product;
3. by encryption software, original program file is encrypted, in case data file information is revealed, again can be encrypted, in case other people monitor CAN network bus in the process of CAN transmitting-receiving simultaneously, crack the core information of product, improve the security write with a brush dipped in Chinese ink;
4. write with a brush dipped in Chinese ink sharing agreement by the ECU of self-defining a set of CAN network is self-defined and writes with a brush dipped in Chinese ink method, make the car load ECU node of this agreement of employing all can carry out online writing with a brush dipped in Chinese ink, thus realize a set ofly writing with a brush dipped in Chinese ink the object that different ECU write with a brush dipped in Chinese ink by instrument simultaneously, improve and write with a brush dipped in Chinese ink efficiency, save and write with a brush dipped in Chinese ink number of times and time.
In this description, the present invention is described with reference to its specific embodiment.But, still can make various amendment and conversion obviously and not deviate from the spirit and scope of the present invention.Therefore, instructions and accompanying drawing are regarded in an illustrative, rather than a restrictive.
Claims (16)
1. realize the method that electronic control unit program is write with a brush dipped in Chinese ink, it is characterized in that, described method comprises the following steps:
(1) electronic control unit is connected with host computer;
(2) host computer described in is according to the raw data in the self-defined electronic control unit write with a brush dipped in Chinese ink described in sharing agreement erasing;
(3) data message is write with a brush dipped in Chinese ink to described electronic control unit according to described self-defined sharing agreement of writing with a brush dipped in Chinese ink by the host computer described in;
(4) electronic control unit described in resolves the data message received, and according to the data message working procedure after parsing.
2. the method realizing electronic control unit program and write with a brush dipped in Chinese ink according to claim 1, is characterized in that, between described step (1) and (2), comprises the following steps:
(1.1) host computer described in is encrypted described data of writing with a brush dipped in Chinese ink, and data file is write with a brush dipped in Chinese ink in the encryption generating correspondence.
3. the method realizing electronic control unit program and write with a brush dipped in Chinese ink according to claim 2, is characterized in that, data are write with a brush dipped in Chinese ink to described electronic control unit according to self-defined sharing agreement of writing with a brush dipped in Chinese ink by described host computer, are specially:
Described host computer is write with a brush dipped in Chinese ink the data that described encryption to be write with a brush dipped in Chinese ink file by sharing agreement write with a brush dipped in Chinese ink to described electronic control unit according to self-defined.
4. the method realizing electronic control unit program and write with a brush dipped in Chinese ink according to claim 1, is characterized in that, between described step (1) and (2), further comprising the steps of:
(1.a) host computer described in carries out safety certification to self.
5. the method realizing electronic control unit program and write with a brush dipped in Chinese ink according to claim 1, it is characterized in that, described host computer carries out safety certification to self, is specially:
Described host computer transfers corresponding secure authenticated information according to the input instruction of user from dynamic link library, and carries out safety certification.
6. the method realizing electronic control unit program and write with a brush dipped in Chinese ink according to claim 4, is characterized in that, after described step (1.a), further comprising the steps of:
(1.b) host computer described in judges whether safety certification is passed through, and if so, then returns above-mentioned steps (2), otherwise continues step (1.c);
(1.c) the host computer display safety certification failure described in.
7. the method realizing electronic control unit program and write with a brush dipped in Chinese ink according to claim 1, is characterized in that, between described step (3) and (4), comprises the following steps:
(3.1) whether the data message described in the host computer described in judges has been write with a brush dipped in Chinese ink, and if so, then continues step (4), otherwise continues step (3.2);
(3.2) failure is write with a brush dipped in Chinese ink in the host computer display described in.
8. the method realizing electronic control unit program and write with a brush dipped in Chinese ink according to claim 7, is characterized in that, before described step (3.1), comprises the following steps:
(3.0.1) each Frame to data message of the host computer described in verifies, and judges that whether this Frame is by verification;
If (3.0.2) judged result is for this Frame is by verification, then continue step (3.0.3), otherwise, continue step (3.2);
(3.0.3) host computer described in is by electronic control unit extremely described for this dataframe;
(3.0.4) electronic control unit described in verifies this Frame received, and judges that whether this Frame is by verification;
(3.0.5) judged result is fed back to described host computer by the electronic control unit described in;
(3.0.6) host computer described in judges whether the judged result received is that this Frame passes through verification, if so, then returns above-mentioned steps (3.0.1), otherwise, continue step (3.2).
9. the method realizing electronic control unit program and write with a brush dipped in Chinese ink according to claim 8, is characterized in that, between described step (3.1) and (3.2), comprises the following steps:
If the data message described in (3.1.1) described host computer judges has been write with a brush dipped in Chinese ink, then continue step (3.1.2), otherwise continue step (3.2);
(3.1.2) host computer described in and carry out the consistency desired result of described data message between electronic control unit.
10. the method realizing electronic control unit program and write with a brush dipped in Chinese ink according to claim 9, it is characterized in that, the consistency desired result of described data message is carried out between described host computer and electronic control unit, comprise the following steps: the electronic control unit described in (3.1.2.1) carries out entirety verification to the data message received, and overall check results is fed back to described host computer;
(3.1.2.2) whether the overall check results described in the host computer described in judges is that overall verification is passed through, and if so, then continues step (3.1.2.3), otherwise, continue step (3.2);
(3.1.2.3) host computer described in is by electronic control unit extremely described for data message feedback command;
(3.1.2.4) data of described data message are sent to described host computer according to described data message feedback command by the electronic control unit described in;
(3.1.2.5) host computer described in carries out secondary verification to the data message that described electronic control unit feeds back, and judges check results;
If (3.1.2.6) judged result is that the data message secondary verification that described electronic control unit feeds back is passed through, then continues step (3.1.2.7), otherwise continue step (3.2);
(3.1.2.7) the host computer display described in is write with a brush dipped in Chinese ink successfully.
11. methods realizing electronic control unit program and write with a brush dipped in Chinese ink according to claim 10, is characterized in that, after described step (3.2), further comprising the steps of:
(3.3) host computer described in is inquired about and the reason writing with a brush dipped in Chinese ink failure described in solving;
(3.4) whether the reason writing with a brush dipped in Chinese ink failure described in the host computer described in judges solves, if so, then continues step (3.5), otherwise returns above-mentioned steps (3.3);
(3.5) host computer described in is write with a brush dipped in Chinese ink to described electronic control unit again by writing with a brush dipped in Chinese ink unsuccessful data in described data message.
12. methods realizing electronic control unit program and write with a brush dipped in Chinese ink according to claim 1, it is characterized in that, electronic control unit is connected with host computer, is specially:
Described electronic control unit is connected with described host computer by CAN.
13. 1 kinds realize based on the method according to any one of claim 1 to 12 system that electronic control unit program writes with a brush dipped in Chinese ink, it is characterized in that, described system comprises host computer, described host computer is in order to connect described electronic control unit, and according to the raw data in the described self-defined electronic control unit write with a brush dipped in Chinese ink described in sharing agreement erasing, and according to described self-defined sharing agreement of writing with a brush dipped in Chinese ink, data message is write with a brush dipped in Chinese ink to described electronic control unit.
14. systems realizing electronic control unit program and write with a brush dipped in Chinese ink according to claim 13, it is characterized in that, described host computer comprises encrypting module and data write with a brush dipped in Chinese ink module, wherein:
Described encrypting module, in order to be encrypted described data of writing with a brush dipped in Chinese ink, and data file is write with a brush dipped in Chinese ink in the encryption generating correspondence;
Described data write with a brush dipped in Chinese ink module, resolve and obtain described data message, and write with a brush dipped in Chinese ink described data message to described electronic control unit according to described self-defined sharing agreement of writing with a brush dipped in Chinese ink in order to write with a brush dipped in Chinese ink data file to described encryption before starting to write with a brush dipped in Chinese ink.
15. systems realizing electronic control unit program and write with a brush dipped in Chinese ink according to claim 14, is characterized in that, described data are write with a brush dipped in Chinese ink module and comprised safety certification unit and consistency desired result unit.
16. systems realizing electronic control unit program and write with a brush dipped in Chinese ink according to claim 1, is characterized in that, described writes with a brush dipped in Chinese ink the data that data are .hex .mot or .mhx file.
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| CN201410424267.3A CN104281469A (en) | 2014-08-26 | 2014-08-26 | Method and system for realizing refreshing and writing of ECU (Electronic Control Unit) program |
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| CN201410424267.3A CN104281469A (en) | 2014-08-26 | 2014-08-26 | Method and system for realizing refreshing and writing of ECU (Electronic Control Unit) program |
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| CN201410424267.3A Pending CN104281469A (en) | 2014-08-26 | 2014-08-26 | Method and system for realizing refreshing and writing of ECU (Electronic Control Unit) program |
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