CN109712279A - A kind of wiring method and device of vehicle identification code - Google Patents
A kind of wiring method and device of vehicle identification code Download PDFInfo
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- CN109712279A CN109712279A CN201811453354.6A CN201811453354A CN109712279A CN 109712279 A CN109712279 A CN 109712279A CN 201811453354 A CN201811453354 A CN 201811453354A CN 109712279 A CN109712279 A CN 109712279A
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Abstract
Embodiment of the present invention discloses the wiring method and device of a kind of vehicle identification code (Personal Identification Number, PIN).Method includes: to obtain the vehicle identification number with the first data length, and the predetermined initial value of vehicle identification code is arranged, and the vehicle identification code has the second data length, and second data length is less than the first data length；The vehicle identification number, is mapped as the output valve of vehicle identification code by the predetermined initial value based on scheduled constant and the vehicle identification code；The output valve of the vehicle identification code is stored into Vehicle Controller, the Vehicle Controller is enabled based on the output valve of the vehicle identification code and executes authentication check.Embodiment of the present invention generates vehicle identification code using the vehicle identification number of vehicle, guarantees the dispersibility of vehicle identification code, and is conducive to key pairing when offline vehicle and maintenance.
Description
Technical field
Embodiment of the present invention is related to automobile technical field, in particular to a kind of vehicle identification code (Personal
Identification Number, PIN) wiring method and device.
Background technique
Have in national newest standards " term and definition of automobile and trailer type " (GB/T 3730.1-2001) to automobile
Such as give a definition: by power drive, the vehicle of the non-track carrying with 4 or 4 or more wheels is mainly used for: carrying personnel
And (or) cargo；Draw the vehicle of carrying personnel and (or) cargo；Specific use.Energy shortage, oil crisis and environmental pollution
It grows in intensity, brings tremendous influence to people's lives, be directly related to the sustainable development of national economy and society.The world is each
State is all in active development new energy technology.
Current vehicle basic configuration has remote-control key and operates, it can be achieved that unblocking the even key drop window etc. that locks door, higher
The vehicle at end is also equipped with keyless entry and startup function, these functions be unable to do without the key chip with communication function.Its
In, keyless entry and activation system abbreviation PEPS (Passive Entry Passive Start) system, are a novel intelligence
Can electric theft-proof system, it use radio frequency identification (RFID) technology, realize without press remote controler can into the car with
And the functions such as one-key start engine.PEPS has more intelligentized entrance guard management, and higher anti-theft performance has become vapour
The mainstream of vehicle electric theft-proof system application.
Currently, needing to carry out key matching when new car is offline before use has the key of communication function.Moreover,
When car body control module is replaced in after-sales service, it is also desirable to re-start key matching.Key matching needs vehicle identification code
It participates in.
However, the repeated problem of vehicle identification code how is avoided, so that two can be operated by avoiding the occurrence of same key
The case where vehicle is a crucial technical problem.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of wiring method of vehicle identification code and devices.
The technical solution of embodiment of the present invention is as follows:
A kind of wiring method of vehicle identification code, comprising:
The vehicle identification number with the first data length is obtained, and the predetermined initial value of vehicle identification code is set, institute
Vehicle identification code is stated with the second data length, second data length is less than the first data length；
Predetermined initial value based on scheduled constant and the vehicle identification code, the vehicle identification number is mapped as
The output valve of vehicle identification code；
The output valve of the vehicle identification code is stored into Vehicle Controller, the Vehicle Controller is enabled and is based on institute
The output valve for stating vehicle identification code executes authentication check.
In one embodiment, the predetermined initial value of the vehicle identification code is zero；
The wherein predetermined initial value based on scheduled constant and the vehicle identification code, by the identification of the vehicle
Code is mapped as the output valve of vehicle identification code
Based on the vehicle identification number definition pointer；
Into cyclic process, wherein in the cyclic process, when the internal storage data that the pointer is directed toward is not zero, institute
State pointer add 1 and take out pointer add 1 pointed by internal storage data, calculate the product of the vehicle identification code and the constant,
The summed result of internal storage data pointed by pointer plus 1 and the product is assigned to the vehicle identification code, when the pointer
When the internal storage data of direction is zero, the cyclic process is exited；
After cyclic process terminates, using the vehicle identification code and 0x7FFFFFFF phase and value as the vehicle
The output valve of recognition code.
In one embodiment, first data length is 17 bytes；Second data length is 4 bytes.
In one embodiment, the output valve by vehicle identification code is stored into Vehicle Controller, enables institute
Stating output valve execution authentication check of the Vehicle Controller based on the vehicle identification code includes:
When vehicle is offline, by the keyless entry of the output valve storage of the vehicle identification code to the vehicle and open
In movement controller；
The keyless entry and starting output valve of the controller based on the vehicle identification code are enabled, key is executed
With authentication check process.
In one embodiment, the output valve by vehicle identification code is stored into Vehicle Controller, enables institute
Stating output valve execution authentication check of the Vehicle Controller based on the vehicle identification code includes:
In after-sales service, by the output valve storage of the vehicle identification code to the keyless entry and starting after maintenance
In controller；
Keyless entry and starting output valve of the controller based on the vehicle identification code after enabling the maintenance, hold
Row key matches authentication check process.
A kind of writing station of vehicle identification code, comprising:
Module is obtained, for obtaining the vehicle identification number with the first data length, and vehicle identification code is set
Predetermined initial value, the vehicle identification code have the second data length, and second data length is less than the first data length；
Mapping block, for the predetermined initial value based on scheduled constant and the vehicle identification code, by the vehicle
Identification number is mapped as the output valve of vehicle identification code；
Memory module enables the vehicle for storing the output valve of the vehicle identification code into Vehicle Controller
Set controller executes authentication check based on the output valve of the vehicle identification code.
In one embodiment, the predetermined initial value of the vehicle identification code is zero；
The mapping block, for being based on the vehicle identification number definition pointer；
Into cyclic process, wherein in the cyclic process, when the internal storage data that the pointer is directed toward is not zero, institute
State pointer add 1 and take out pointer add 1 pointed by internal storage data, calculate the product of the vehicle identification code and the constant,
The summed result of internal storage data pointed by pointer plus 1 and the product is assigned to the vehicle identification code, when the pointer
When the internal storage data of direction is zero, the cyclic process is exited；
After cyclic process terminates, using the vehicle identification code and 0x7FFFFFFF phase and value as the vehicle
The output valve of recognition code.
In one embodiment, first data length is 17 bytes；Second data length is 4 bytes.
In one embodiment, memory module is used for when vehicle is offline, by the output valve of the vehicle identification code
It stores in the keyless entry and starting controller of the vehicle；It enables the keyless entry and starting controller is based on institute
The output valve of vehicle identification code is stated, key is executed and matches authentication check process.
In one embodiment, memory module is used in after-sales service, by the output valve of the vehicle identification code
In keyless entry and starting controller after storing maintenance；Keyless entry and starting controller after enabling the maintenance
Based on the output valve of the vehicle identification code, executes key and match authentication check process.
It can be seen from the above technical proposal that obtaining, there is the vehicle of the first data length to know in embodiment of the present invention
Alias code, and the predetermined initial value of vehicle identification code is arranged, the vehicle identification code have the second data length, and described the
Two data lengths are less than the first data length；Predetermined initial value based on scheduled constant and the vehicle identification code, by institute
State the output valve that vehicle identification number is mapped as vehicle identification code；The output valve of the vehicle identification code is stored to vehicle-mounted
In controller, the Vehicle Controller is enabled based on the output valve of the vehicle identification code and executes authentication check.Therefore, this hair
Bright embodiment generates vehicle identification code using the vehicle identification number of vehicle, guarantees the dispersibility of vehicle identification code, and
And repeated code is avoided, guarantee is not in the case where same key can operate two cars generation.
In addition, key when embodiment of the present invention is conducive to offline vehicle and maintenance matches.Even if the vehicle body control of vehicle
Molding block is replaced in maintenance, and key pairing still may be implemented in the vehicle identification code based on invention embodiment write-in.
Detailed description of the invention
Only illustratively description and explain the present invention for the following drawings, not delimit the scope of the invention.
Fig. 1 is the flow chart of the wiring method of vehicle identification code of the present invention.
Fig. 2 is that key when embodiment of the present invention vehicle is offline matches flow diagram.
Key when Fig. 3 is after-sales service of the present invention matches flow diagram.
Fig. 4 is the structure chart of the writing station of vehicle identification code of the present invention.
Specific embodiment
In order to which the technical features, objects and effects of invention are more clearly understood, the Detailed description of the invention present invention is now compareed
Specific embodiment, identical label indicates identical part in the various figures.
It is succinct and intuitive in order to what is described, hereafter by describing several representative embodiments come to side of the invention
Case is illustrated.A large amount of details is only used for helping to understand the solution of the present invention in embodiment.However, it will be apparent that of the invention
Technical solution can be not limited to these details when realizing.In order to avoid unnecessarily having obscured the solution of the present invention, Yi Xieshi
It applies mode not described meticulously, but only gives frame.Hereinafter, " comprising " refers to " including but not limited to ", " root
According to ... " refer to " according at least to ..., but be not limited to according only to ... ".Due to the speech habits of Chinese, hereinafter without spy
When not pointing out the quantity of an ingredient, it is meant that the ingredient is either one or more, or can be regarded as at least one.
Firstly, the meaning of clear vehicle identification number (Vehicle Identification Number).It is marked according to ASE
Quasi- regulation: VIN code is made of 17 characters, so being commonly called as 17 codes.ID code of vehicle is exactly the identification card number of automobile, it
It is determined according to national vehicle management standard, contains manufacturer, age, vehicle, body model and code, the engine of vehicle
The information such as code and assembling place.Vehicle Identification Number is usually made of three parts: first part, and manufactory, the world identifies generation
Number (WMI)；Second part, vehicle declaratives (VDS)；Part III, vehicle indicating section (VIS).
In embodiments of the present invention, vehicle identification code (PIN) is generated using the vehicle identification number of vehicle, moreover,
Using the uniqueness of VIN code, guarantees the uniqueness and dispersibility of PIN code, avoid repeated code.
Fig. 1 is the flow chart of the wiring method of vehicle identification code of the present invention.
As shown in Figure 1, this method comprises:
Step 101: obtaining the vehicle identification number with the first data length, and the predetermined first of vehicle identification code is set
Initial value, the vehicle identification code have the second data length, and second data length is less than the first data length.
Preferably, the first data length is 17 bytes；Second data length is 4 bytes.That is, vehicle identification number
As unique input variable, length is 17 bytes, and the vehicle identification code of 4 bytes is generated based on vehicle identification number.
Step 102: vehicle identification number is mapped as by the predetermined initial value based on scheduled constant and vehicle identification code
The output valve of vehicle identification code.
Preferably, the predetermined initial value of vehicle identification code is zero；Wherein it is based on scheduled constant and vehicle identification code
Predetermined initial value, include: to be determined based on vehicle identification number by the output valve that vehicle identification number is mapped as vehicle identification code
Adopted pointer can find the internal storage location using pointer as address based on the pointer；Into cyclic process, wherein in cyclic process,
When the data (referred to as internal storage data) in the internal storage location that pointer is directed toward are not zero, pointer adds 1 and takes out pointer and adds pointed by 1
Internal storage data, calculate vehicle identification code and constant product, by the summation of internal storage data pointed by pointer plus 1 and product
As a result it is assigned to the vehicle identification code, when the internal storage data that pointer is directed toward is zero, exits cyclic process；In cyclic process knot
After beam, using vehicle identification code and 0x7FFFFFFF phase and value as the output valve of vehicle identification code.
Preferably, scheduled constant is 131.Specific: vehicle identification number (VIN) is used as unique input variable, can be with
Vehicle identification code (PIN) is generated by hash algorithm, specific code is as follows:
Citing: it the following is and the vehicle identification code that above-mentioned algorithm obtains is passed through according to actual vehicle identification number:
1.VIN code: LUGMDA1B4JG000078；Corresponding PIN code: E534A653；
2.VIN code: LUGMDA1B0JG000076；Corresponding PIN code: 5F1E616F.
The above demonstration describes the predetermined initial value based on scheduled constant and vehicle identification code, by identification of the vehicle
Code is mapped as the specific example of the output valve of vehicle identification code, it will be appreciated by those of skill in the art that this description is only
It is exemplary, it is not intended to limit the present invention the protection scope of embodiment.
Step 103: the output valve of vehicle identification code being stored into Vehicle Controller, Vehicle Controller is enabled and is based on institute
The output valve for stating vehicle identification code executes authentication check.
In one embodiment, the output valve of vehicle identification code is stored into Vehicle Controller, enables the vehicle
It includes: when vehicle is offline, by the vehicle that set controller, which executes authentication check based on the output valve of the vehicle identification code,
The output valve storage of recognition code is into the keyless entry of the vehicle and starting controller；Enable the keyless entry and
Start output valve of the controller based on the vehicle identification code, executes key and match authentication check process.
Specifically, the vehicle identification number of vehicle can be obtained by offline equipment scanner, later when vehicle is offline
By algorithm shown in Fig. 1, vehicle identification code is calculated, keyless entry and starting controller is written into vehicle identification code,
Process is matched for key and authentication check algorithm is calculated and used.It preferably, can also be close by vehicle identification when vehicle is offline
In the entire car controller or remote control unit of code write-in vehicle, to be used for respective authentication check algorithm.
In one embodiment, the output valve of vehicle identification code is stored into Vehicle Controller, enables vehicle-mounted control
It includes: in after-sales service, by the vehicle identification that device processed, which executes authentication check based on the output valve of the vehicle identification code,
The output valve storage of password to the keyless entry after maintenance and starts in controller；Keyless entry after enabling the maintenance
And starting output valve of the controller based on the vehicle identification code, it executes key and matches authentication check process.
Specifically, in after-sales service, when the car body control module comprising keyless entry and starting controller is replaced
When, the vehicle identification number of vehicle is obtained or be manually entered by diagnostic device scanner, passes through algorithm shown in Fig. 1, meter later
Vehicle identification code is calculated, the keyless entry of replaced car body control module is written into vehicle identification code and starting controls
In device, calculates and use for key matching process and authentication check algorithm.It preferably, can also be in after-sales service, by vehicle
Replaced entire car controller or replaced remote control unit is written in recognition code, to calculate for respective authentication check
Method.
Based on foregoing description, Fig. 2 is that key when embodiment of the present invention vehicle is offline matches flow diagram.
As shown in Fig. 2, this method comprises:
Step 201: when vehicle is offline, offline equipment scanner obtains the vehicle identification number of vehicle, the vehicle identification
Number is 17 bytes.
Step 202: the predetermined initial value that vehicle identification code is arranged is zero, and the data that vehicle identification code is arranged are long
Degree is 4 bytes.
Step 203: the predetermined initial value based on scheduled constant and vehicle identification code reflects vehicle identification number Hash
Penetrate the output valve for vehicle identification code.
Step 204: keyless entry and starting controller is written into vehicle identification code.
Step 205: keyless entry and starting controller are based on vehicle identification code and execute certification, deposit after certification passes through
Store up key ID.So far, key ID is preserved in keyless entry and starting controller, the key corresponding to key ID can be without key
Spoon enters and starting automobile.
Based on foregoing description, key when Fig. 3 is after-sales service of the present invention matches flow diagram.
Step 301: in after-sales service, diagnostic device scanner obtains the vehicle identification number of vehicle, the vehicle identification
Number is 17 bytes.
Step 302: the predetermined initial value that vehicle identification code is arranged is zero, and the data that vehicle identification code is arranged are long
Degree is 4 bytes.
Step 303: the predetermined initial value based on scheduled constant and vehicle identification code reflects vehicle identification number Hash
Penetrate the output valve for vehicle identification code.
Step 304: the keyless entry of replaced car body control module is written into vehicle identification code and starting controls
In device.
Step 305: close based on vehicle identification in the keyless entry and starting controller of replaced car body control module
Code executes certification, passes through rear storing keys ID in certification.So far, the keyless entry and starting of replaced car body control module
Key ID is preserved in controller, the key corresponding to key ID can be with keyless entry and starting automobile.
As it can be seen that key still may be implemented based on Fig. 3 process even if the car body control module of vehicle is replaced in maintenance
Pairing.
Based on foregoing description, embodiment of the present invention also proposed a kind of writing station of vehicle identification code.
Fig. 4 is the structure chart of the writing station of vehicle identification code of the present invention.
As shown in figure 4, the writing station of vehicle identification code includes:
Module 401 is obtained, for obtaining the vehicle identification number with the first data length, and vehicle identification code is set
Predetermined initial value, the vehicle identification code has the second data length, and second data length is long less than the first data
Degree；
Mapping block 402, for the predetermined initial value based on scheduled constant and the vehicle identification code, by the vehicle
Identification number is mapped as the output valve of vehicle identification code；
Memory module 403 enables described for storing the output valve of the vehicle identification code into Vehicle Controller
Vehicle Controller executes authentication check based on the output valve of the vehicle identification code.
In one embodiment, the predetermined initial value of the vehicle identification code is zero；
The mapping block 402, for being based on the vehicle identification number definition pointer；
Into cyclic process, wherein in the cyclic process, when the internal storage data that the pointer is directed toward is not zero, institute
State pointer add 1 and take out pointer add 1 pointed by internal storage data, calculate the product of the vehicle identification code and the constant,
The summed result of internal storage data pointed by pointer plus 1 and the product is assigned to the vehicle identification code, when the pointer
When the internal storage data of direction is zero, the cyclic process is exited；
After cyclic process terminates, using the vehicle identification code and 0x7FFFFFFF phase and value as the vehicle
The output valve of recognition code.
In one embodiment, first data length is 17 bytes；Second data length is 4 bytes.
In one embodiment, memory module 403 are used for when vehicle is offline, by the defeated of the vehicle identification code
Value storage is into the keyless entry of the vehicle and starting controller out；Enable the keyless entry and starting controller base
In the output valve of the vehicle identification code, executes key and match authentication check process.
In one embodiment, memory module 403 are used in after-sales service, by the defeated of the vehicle identification code
Value storage to the keyless entry after maintenance and starts in controller out；Keyless entry and starting control after enabling the maintenance
Output valve of the device processed based on the vehicle identification code executes key and matches authentication check process.
Can by embodiment of the present invention proposes the wiring method of vehicle identification code be applied to various types of automobiles
In, such as fuel-engined vehicle or new-energy automobile.When being applied to new-energy automobile, mixed power electric car can be applied to
(HEV), pure electric automobile (BEV), fuel cell electric vehicle (FCEV) and other new energy (such as supercapacitors, flywheel
High-efficiency energy storage vehicle) automobile etc..
In conclusion obtaining the vehicle identification number with the first data length, and vehicle is arranged in embodiment of the present invention
The predetermined initial value of recognition code, the vehicle identification code have the second data length, and second data length is less than
First data length；Predetermined initial value based on scheduled constant and the vehicle identification code, by the vehicle identification number
It is mapped as the output valve of vehicle identification code；The output valve of the vehicle identification code is stored into Vehicle Controller, is enabled
The Vehicle Controller executes authentication check based on the output valve of the vehicle identification code.Therefore, embodiment of the present invention benefit
Vehicle identification code is generated with the vehicle identification number of vehicle, guarantees the dispersibility of vehicle identification code, and avoid repeated code, protects
Card is not in the case where same key can operate two cars generation.
In addition, key when embodiment of the present invention is conducive to offline vehicle and maintenance matches.Even if the vehicle body control of vehicle
Molding block is replaced in maintenance, and key pairing still may be implemented in the vehicle identification code based on invention embodiment write-in.
The present invention also provides a kind of machine readable storage medium, storage is for making a machine execute side as described herein
The instruction of method.Specifically, system or device equipped with storage medium can be provided, store in realization on the storage medium
State the software program code of the function of any embodiment in embodiment, and make the system or device computer (or CPU or
MPU the program code being stored in a storage medium) is read and executed.Further, it is also possible to be made by the instruction based on program code
Operating system of hands- operation etc. is calculated to complete partly or completely practical operation.It can also will read from storage medium
The expansion being connected to a computer is write in memory set in the expansion board in insertion computer or write to program code
In the memory being arranged in exhibition unit, then the instruction based on program code makes to be mounted on expansion board or expanding element
CPU etc. comes execution part and whole practical operations, to realize the function of any embodiment in above embodiment.
Storage medium embodiment for providing program code include floppy disk, hard disk, magneto-optic disk, CD (such as CD-ROM,
CD-R, CD-RW, DVD-ROM, DVD-RAM, DVD-RW, DVD+RW), tape, non-volatile memory card and ROM.Selectively,
It can be by communication network from download program code on server computer or cloud.
Herein, " schematic " expression " serving as examplea, instances, or illustrations " should not will be described herein as " showing
Any diagram, the embodiment of meaning property " are construed to technical solution that is a kind of preferred or more having advantages.To make simplified form,
Part related to the present invention is only schematically shown in each figure, and does not represent its practical structures as product.Separately
Outside, so that simplified form is easy to understand, with the component of identical structure or function in some figures, it is only symbolically depicted
In one, or only marked one of those.Herein, "one" is not offered as limiting the quantity of relevant portion of the present invention
It is made as " only this ", and "one" situation for not indicating to exclude the quantity " more than one " of relevant portion of the present invention.At this
Wen Zhong, "upper", "lower", "front", "rear", "left", "right", "inner", "outside" etc. are only used for indicating the opposite position between relevant portion
Set relationship, and the absolute position of these non-limiting relevant portions.
The series of detailed descriptions listed above only for feasible embodiment of the invention specifically
Protection scope that is bright, and being not intended to limit the invention, it is all without departing from equivalent embodiments made by technical spirit of the present invention or
Change, such as the combination, segmentation or repetition of feature, should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of wiring method of vehicle identification code characterized by comprising
The vehicle identification number with the first data length is obtained, and the predetermined initial value of vehicle identification code is set, the vehicle
Recognition code has the second data length, and second data length is less than the first data length；
The vehicle identification number is mapped as vehicle by the predetermined initial value based on scheduled constant and the vehicle identification code
The output valve of recognition code；
The output valve of the vehicle identification code is stored into Vehicle Controller, the Vehicle Controller is enabled and is based on the vehicle
The output valve of recognition code executes authentication check.
2. the wiring method of vehicle identification code according to claim 1, which is characterized in that the vehicle identification code
Predetermined initial value is zero；
The wherein predetermined initial value based on scheduled constant and the vehicle identification code, the vehicle identification number is reflected
It penetrates and includes: for the output valve of vehicle identification code
Based on the vehicle identification number definition pointer；
Into cyclic process, wherein in the cyclic process, when the internal storage data that the pointer is directed toward is not zero, the finger
Needle add 1 and take out pointer add 1 pointed by internal storage data, calculate the product of the vehicle identification code and the constant, will refer to
Needle add 1 pointed by the summed result of internal storage data and the product be assigned to the vehicle identification code, when the pointer is directed toward
Internal storage data when being zero, exit the cyclic process；
After cyclic process terminates, using the vehicle identification code and 0x7FFFFFFF phase and value as the vehicle identification
The output valve of password.
3. the wiring method of vehicle identification code according to claim 1, which is characterized in that first data length is
17 bytes；Second data length is 4 bytes.
4. the wiring method of vehicle identification code according to claim 1, which is characterized in that described by vehicle identification code
Output valve store into Vehicle Controller, enable the Vehicle Controller based on the vehicle identification code output valve execute
Authentication check includes:
When vehicle is offline, the output valve storage of the vehicle identification code is controlled to the keyless entry of the vehicle and starting
In device processed；
The keyless entry and starting output valve of the controller based on the vehicle identification code are enabled, key matching is executed and recognizes
Demonstrate,prove checking procedure.
5. the wiring method of vehicle identification code according to claim 1, which is characterized in that described by vehicle identification code
Output valve store into Vehicle Controller, enable the Vehicle Controller based on the vehicle identification code output valve execute
Authentication check includes:
In after-sales service, by the output valve storage of the vehicle identification code to the keyless entry and starting control after maintenance
In device；
Keyless entry and starting output valve of the controller based on the vehicle identification code after enabling the maintenance, execute key
Spoon matching authentication check process.
6. a kind of writing station of vehicle identification code characterized by comprising
Module is obtained, for obtaining the vehicle identification number with the first data length, and the predetermined of vehicle identification code is set
Initial value, the vehicle identification code have the second data length, and second data length is less than the first data length；
Mapping block, for the predetermined initial value based on scheduled constant and the vehicle identification code, by the vehicle identification
Number mapping is the output valve of vehicle identification code；
Memory module enables the vehicle-mounted control for storing the output valve of the vehicle identification code into Vehicle Controller
Device processed executes authentication check based on the output valve of the vehicle identification code.
7. the writing station of vehicle identification code according to claim 6, which is characterized in that the vehicle identification code
Predetermined initial value is zero；
The mapping block, for being based on the vehicle identification number definition pointer；
Into cyclic process, wherein in the cyclic process, when the internal storage data that the pointer is directed toward is not zero, the finger
Needle add 1 and take out pointer add 1 pointed by internal storage data, calculate the product of the vehicle identification code and the constant, will refer to
Needle add 1 pointed by the summed result of internal storage data and the product be assigned to the vehicle identification code, when the pointer is directed toward
Internal storage data when being zero, exit the cyclic process；
After cyclic process terminates, using the vehicle identification code and 0x7FFFFFFF phase and value as the vehicle identification
The output valve of password.
8. the writing station of vehicle identification code according to claim 6, which is characterized in that first data length is
17 bytes；Second data length is 4 bytes.
9. the writing station of vehicle identification code according to claim 6, which is characterized in that
Memory module, for when vehicle is offline, the output valve of the vehicle identification code to be stored to the vehicle without key
Spoon enters and starts in controller；Enable the keyless entry and starting output of the controller based on the vehicle identification code
Value executes key and matches authentication check process.
10. the writing station of vehicle identification code according to claim 6, which is characterized in that
Memory module, in after-sales service, by the output valve storage of the vehicle identification code to after maintenance without key
Into and starting controller in；Keyless entry and starting controller after enabling the maintenance are based on the vehicle identification code
Output valve, execute key match authentication check process.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110545115A (en) * | 2019-08-23 | 2019-12-06 | 北京经纬恒润科技有限公司 | Method for reducing same frequency interference of vehicle and vehicle-mounted keyless starting equipment |
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| CN108377193A (en) * | 2018-03-09 | 2018-08-07 | 北京汽车研究总院有限公司 | A kind of mileage backup method, device, vehicle and control device |
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| CN110545115A (en) * | 2019-08-23 | 2019-12-06 | 北京经纬恒润科技有限公司 | Method for reducing same frequency interference of vehicle and vehicle-mounted keyless starting equipment |
| CN110545115B (en) * | 2019-08-23 | 2021-07-23 | 北京经纬恒润科技股份有限公司 | Method for reducing same frequency interference of vehicle and vehicle-mounted keyless starting equipment |
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