CN104442708A - Vehicle anti-theft system VIN code matching method - Google Patents
Vehicle anti-theft system VIN code matching method Download PDFInfo
- Publication number
- CN104442708A CN104442708A CN201410671876.9A CN201410671876A CN104442708A CN 104442708 A CN104442708 A CN 104442708A CN 201410671876 A CN201410671876 A CN 201410671876A CN 104442708 A CN104442708 A CN 104442708A
- Authority
- CN
- China
- Prior art keywords
- vin code
- theft
- immo
- control unit
- engine ecu
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
- B60R25/20—Means to switch the anti-theft system on or off
- B60R25/24—Means to switch the anti-theft system on or off using electronic identifiers containing a code not memorised by the user
- B60R25/243—Means to switch the anti-theft system on or off using electronic identifiers containing a code not memorised by the user with more than one way to gain access
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
- B60R25/20—Means to switch the anti-theft system on or off
- B60R25/24—Means to switch the anti-theft system on or off using electronic identifiers containing a code not memorised by the user
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R2325/00—Indexing scheme relating to vehicle anti-theft devices
- B60R2325/10—Communication protocols, communication systems of vehicle anti-theft devices
- B60R2325/108—Encryption
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Burglar Alarm Systems (AREA)
- Lock And Its Accessories (AREA)
Abstract
The invention discloses a vehicle anti-theft system VIN code matching method. Firstly, a VIN code is input to a matching tool, and the input VIN code is assigned to a variable A; secondly, whether Immo internally stores the VIN code or not is judged, and if yes, the variable A is written into the Immo, and the third step is executed; if not, whether the VIN code stored in the Immo is consistent with the variable A or not is judged, and if yes, the third step is executed; if not, whether the Immo is provided with the anti-theft function or not is judged, and if not, the variable A is written into the Immo, and the third step is executed; if yes, an anti-theft matching module is automatically quitted; thirdly, an engine control unit (ECU) is matched according to the second step. According to the method, it can be ensured that when vehicle anti-theft matching is carried out on an offline vehicle, the ECU and the VIN code stored in the anti-theft controller Immo can be consistent with the VIN code used during anti-theft matching at that time.
Description
Technical field
The present invention relates to the antitheft matching technique of automobile VIN, specifically a kind of Vehicle Anti-Theft System VIN code matching process is related to, this method can guarantee to roll off the production line vehicle control unit of engine ECU and anti-theft controller Immo storage inside when vehicle anti-theft is mated VIN with at that time antitheft mate time VIN used consistent, belong to the antitheft matching technique field of automobile VIN.
Background technology
In Vehicle Anti-Theft System matching process, the PIN code of antitheft coupling need be calculated by cryptographic algorithm with the VIN code of vehicle, after at anti-theft system, the match is successful, the control unit of engine ECU of Vehicle Anti-Theft System and anti-theft controller Immo will store this PIN code and VIN code in its separately internal storage.After the anti-theft system of vehicle breaks down, during as control unit of engine ECU or anti-theft controller Immo need be changed, need the VIN code first being read control unit of engine ECU or anti-theft controller Immo storage inside by matching tool, then calculate PIN code according to the VIN code read by identical cryptographic algorithm, and with this PIN code reset roll off the production line time the control unit of engine ECU that crosses of successful match or anti-theft controller Immo.
If the VIN being stored in control unit of engine ECU or anti-theft controller Immo inside with roll off the production line mate antitheft at that time time VIN code used inconsistent (such as staff inputs VIN code mistake, or store other VIN code before control unit of engine ECU or anti-theft controller Immo, but forget covering when coupling stores), will cause occurring because PIN code is different when reset control unit of engine ECU or anti-theft controller Immo resetting, and then the situation that anti-theft system cannot mate.Such as: when under vehicle, lines matching is antitheft, the VIN code of input is A, the PIN code calculated by cryptographic algorithm is PA, the VIN code be stored in after the match is successful in control unit of engine ECU or anti-theft controller Immo is B, if the PIN code calculated by cryptographic algorithm when resetting is PB, if A is not equal to B, due to the uniqueness of cryptographic algorithm, then the PIN code PA calculated also is not equal to PA.In such cases, just only have the control unit of engine ECU that changes simultaneously and do not mate and anti-theft controller Immo again to carry out antitheft coupling, but the method additionally can increase unnecessary maintenance cost, brings customer service to complain.Such as: user's vehicle is that control unit of engine ECU or anti-theft controller Immo damage, damaged control unit of engine ECU or anti-theft controller Immo need be changed and just can deal with problems for original, but due to control unit of engine ECU or anti-theft controller Immo storage inside VIN code with roll off the production line that to mate antitheft VIN code used at that time inconsistent, thus cause control unit of engine ECU or anti-theft controller Immo to occur the situation that cannot reset, the control unit of engine ECU that now just can only simultaneously more renew and anti-theft controller Immo, thus increase extra service expenditure.
Summary of the invention
For prior art above shortcomings, the object of the present invention is to provide a kind of Vehicle Anti-Theft System VIN code matching process, this method can guarantee to roll off the production line vehicle control unit of engine ECU and anti-theft controller Immo storage inside when vehicle anti-theft is mated VIN with at that time antitheft mate time VIN used consistent.
To achieve these goals, the technical solution used in the present invention is such:
Vehicle Anti-Theft System VIN code matching process, step is as follows,
1) when under vehicle during line options vehicle anti-theft matching feature module, first by the VIN code of scanning tools or manual input vehicle to matching tool, the VIN code assignment of input is to variables A;
2) matching tool judges whether anti-theft controller Immo inside stores VIN code, if do not had, then variables A is write anti-theft controller Immo inner, and jumps to step 3); If anti-theft controller Immo storage inside has VIN code, then need to judge that whether the VIN code of anti-theft controller Immo storage inside is consistent with variables A, if unanimously, then jump to step 3); If inconsistent, then also need to judge anti-theft controller Immo whether successful match cross anti-theft feature, if not, variables A is write anti-theft controller Immo inner, and jumps to step 3); If successful match mistake, then provide relevant prompting, prompting operator carry out the inspection of Vin code and automatically exit antitheft matching module;
3) matching tool judges whether control unit of engine ECU inside stores VIN code, if do not had, then variables A is write control unit of engine ECU inner, and jumps to step 4); If control unit of engine ECU storage inside has VIN code, then need to judge that whether the VIN code of control unit of engine ECU storage inside is consistent with variables A, if unanimously, then jump to step 4) item; If inconsistent, then also need to judge control unit of engine ECU whether successful match cross anti-theft feature, if it is inner, variables A not to be write control unit of engine ECU, and jump to step 4), if successful match mistake, then provide relevant prompting, prompting operator carry out the inspection of Vin code and automatically exit antitheft matching module;
4) PIN code of antitheft coupling is calculated by variables A, after when the anti-theft feature of the control unit of engine ECU of vehicle and anti-theft controller Immo, the match is successful, again this PIN code is stored into respectively control unit of engine ECU and anti-theft controller Immo inner, namely completes the final coupling of Vehicle Anti-Theft System VIN code and PIN code.
Pass through this method, just can guarantee that variables A is consistent with the VIN code that control unit of engine ECU and anti-theft controller Immo inside stores, following variables A calculates the PIN code of antitheft coupling, just can avoid the problems referred to above, the VIN of namely guarantee to roll off the production line vehicle control unit of engine ECU and anti-theft controller Immo storage inside when vehicle anti-theft is mated with at that time antitheft mate time VIN used consistent.
Accompanying drawing explanation
Diagram of circuit is mated in Fig. 1-the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
See Fig. 1, upper as can be seen from figure, Vehicle Anti-Theft System VIN code matching process of the present invention, concrete steps are as follows,
1) when the antitheft matching feature module of line options vehicle under vehicle, need to input the VIN code of vehicle to matching tool by scanning tools or craft, the VIN code assignment of input is to variables A, and namely A represents the VIN code of input.
2) matching tool judges whether anti-theft controller Immo inside stores VIN code, if not, variables A is write anti-theft controller Immo inner, and jumps to step 3); If anti-theft controller Immo storage inside has VIN code, then need to judge that whether the VIN code of anti-theft controller Immo storage inside is consistent with variables A, if unanimously, then jump to step 3); If inconsistent, then also need to judge anti-theft controller Immo whether successful match cross anti-theft feature, if not, variables A is write anti-theft controller Immo inner, and jumps to step 3); If successful match mistake, then provide relevant prompting, as " the inner Vin code of Immo does not mate ", prompting operator carries out Vin and checks and automatically exit antitheft matching module.
3) matching tool judges whether control unit of engine ECU inside stores VIN code, if not, variables A is write control unit of engine ECU inner, and jumps to step 4); If control unit of engine ECU storage inside has VIN code, then need to judge that whether the VIN code of control unit of engine ECU storage inside is consistent with variables A, if unanimously, then jump to step 4) item; If inconsistent, then also need to judge control unit of engine ECU whether successful match cross anti-theft feature, if it is inner, variables A not to be write control unit of engine ECU, and jump to step 4), if successful match mistake, then provide relevant prompting, as " the inner Vin code of ECU does not mate ", prompting operator carries out Vin and checks and automatically exit antitheft matching module.
4) by after above-mentioned flow process, just can guarantee that variables A is consistent with the VIN code that control unit of engine ECU and anti-theft controller Immo inside stores, following variables A calculates the PIN code of antitheft coupling, after when the anti-theft feature of the control unit of engine ECU of vehicle and anti-theft controller Immo, the match is successful, again PIN code is stored in respectively control unit of engine ECU and anti-theft controller Immo inner, namely complete the final coupling of Vehicle Anti-Theft System VIN code and PIN code, just can avoid the problems referred to above.
Because control unit of engine ECU and anti-theft controller Immo is sane level, therefore the present invention the 2nd) step and the 3rd) step can exchange, namely first carry out coupling and the input of the inner Vin code of control unit of engine ECU, then carry out coupling and the input of the inner Vin code of anti-theft controller Immo.
What finally illustrate is, above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technical scheme of the present invention or equivalent replacement, and not departing from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (2)
1. Vehicle Anti-Theft System VIN code matching process, is characterized in that: step is as follows,
1) when under vehicle during line options vehicle anti-theft matching feature module, first input the VIN code of vehicle to matching tool, the VIN code assignment of input is to variables A;
2) matching tool judges whether anti-theft controller Immo inside stores VIN code, if do not had, then variables A is write anti-theft controller Immo inner, and jumps to step 3); If anti-theft controller Immo storage inside has VIN code, then need to judge that whether the VIN code of anti-theft controller Immo storage inside is consistent with variables A, if unanimously, then jump to step 3); If inconsistent, then also need to judge anti-theft controller Immo whether successful match cross anti-theft feature, if not, variables A is write anti-theft controller Immo inner, and jumps to step 3); If successful match mistake, then provide relevant prompting, prompting operator carry out the inspection of Vin code and automatically exit antitheft matching module;
3) matching tool judges whether control unit of engine ECU inside stores VIN code, if do not had, then variables A is write control unit of engine ECU inner, and jumps to step 4); If control unit of engine ECU storage inside has VIN code, then need to judge that whether the VIN code of control unit of engine ECU storage inside is consistent with variables A, if unanimously, then jump to step 4) item; If inconsistent, then also need to judge control unit of engine ECU whether successful match cross anti-theft feature, if it is inner, variables A not to be write control unit of engine ECU, and jump to step 4), if successful match mistake, then provide relevant prompting, prompting operator carry out the inspection of Vin code and automatically exit antitheft matching module;
4) PIN code of antitheft coupling is calculated by variables A, after when the anti-theft feature of the control unit of engine ECU of vehicle and anti-theft controller Immo, the match is successful, again this PIN code is stored into respectively control unit of engine ECU and anti-theft controller Immo inner, namely completes the final coupling of Vehicle Anti-Theft System VIN code and PIN code.
2. Vehicle Anti-Theft System VIN code matching process according to claim 1, is characterized in that: step 1) passes through the VIN code of scanning tools or manual input vehicle to matching tool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410671876.9A CN104442708B (en) | 2014-11-21 | 2014-11-21 | Vehicle anti-theft system VIN code matching method |
Applications Claiming Priority (1)
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| CN201410671876.9A CN104442708B (en) | 2014-11-21 | 2014-11-21 | Vehicle anti-theft system VIN code matching method |
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| CN104442708A true CN104442708A (en) | 2015-03-25 |
| CN104442708B CN104442708B (en) | 2017-05-17 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106696888A (en) * | 2015-07-22 | 2017-05-24 | 大陆汽车电子(长春)有限公司 | Engine control unit configuration strategy |
| CN111196246A (en) * | 2018-11-20 | 2020-05-26 | 广州汽车集团股份有限公司 | Vehicle anti-theft matching method and system |
| CN112339707A (en) * | 2019-08-09 | 2021-02-09 | 广州汽车集团股份有限公司 | ETC vehicle-mounted unit anti-disassembly method and system and automobile |
| CN112859767A (en) * | 2020-12-31 | 2021-05-28 | 宜宾凯翼汽车有限公司 | Automobile PIN code generation system and method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111196246A (en) * | 2018-11-20 | 2020-05-26 | 广州汽车集团股份有限公司 | Vehicle anti-theft matching method and system |
| CN112339707A (en) * | 2019-08-09 | 2021-02-09 | 广州汽车集团股份有限公司 | ETC vehicle-mounted unit anti-disassembly method and system and automobile |
| CN112859767A (en) * | 2020-12-31 | 2021-05-28 | 宜宾凯翼汽车有限公司 | Automobile PIN code generation system and method |
| CN112859767B (en) * | 2020-12-31 | 2024-03-15 | 宜宾凯翼汽车有限公司 | Automobile PIN code generation system and method |
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| CN104442708B (en) | 2017-05-17 |
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