CN104417492B - Automobile mileage storage protection device and automobile - Google Patents
Automobile mileage storage protection device and automobile Download PDFInfo
- Publication number
- CN104417492B CN104417492B CN201410423330.1A CN201410423330A CN104417492B CN 104417492 B CN104417492 B CN 104417492B CN 201410423330 A CN201410423330 A CN 201410423330A CN 104417492 B CN104417492 B CN 104417492B
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- Prior art keywords
- mileage
- control module
- value
- units
- storing sub
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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
- B60R25/01—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens
- B60R25/04—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens operating on the propulsion system, e.g. engine or drive motor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C22/00—Measuring distance traversed on the ground by vehicles, persons, animals or other moving solid bodies, e.g. using odometers, using pedometers
Abstract
The invention discloses an automobile mileage storage protection device which comprises a wheel speed sensor, an engine control module, a vehicle body control module, a mileage calculation unit and an independent display module, wherein the engine control module is integrated with an anti-theft unit; the vehicle body control module is similarly integrated with the anti-theft unit; the engine control module and the vehicle body control module form an anti-theft engine system; the mileage calculation unit is integrated into the vehicle body control module; the mileage calculation unit receives a mileage signal transmitted by the engine control module to calculate the mileage and transmitting the mileage message to the display module so as to be displayed; the mileage calculation unit comprises a storage protection subunit, at least one first storage subunit and at least one second storage subunit. According to the automobile mileage storage protection device disclosed by the invention, the mileage data can be effectively prevented from being subjected to zero clearing and tampered.
Description
Technical field
The invention belongs to automobile technical field is and in particular to be used for recording and storing vehicle driving mileage and protect mileage to remember
Record the speedometer for automobile storage protection device being not tampered with, and there is the automobile of this mileage storage protection device.
Background technology
The raising of the development of auto industry and living standards of the people makes automobile progress into huge numbers of families, with automobile city
The maturation of field, used automobile market also develops rapidly.During transaction, buyer worries the mileage of used car by two to used car most
Handcart business distorts it is impossible to learn the true ruuning situation of vehicle, and from being strayed into transaction trap, causes unnecessary loss.
Existing speedometer for automobile storage and protection device are as shown in figure 1, include wheel speed sensors 1, engine control module
2, mileage calculation and display mould fast 3, wherein it is integrated with anti-theft 6 in engine control module 2, and antitheft with being equally integrated with
The car body control module 4 of unit 6 forms an engine theftproof system 5.
For such structure, second-hand car trader can by change the method for mileage calculation and display module 3 to realize in
The change of journey and clearing, thus hiding some dangers for for Second-hand Vehicle Transaction, and change mileage calculation and display module 3 cost relatively
Low.
Therefore pole needs a kind of solution that can effectively prevent mileage to be tampered.
Content of the invention
The purpose of the present invention is exactly in order to the record of effective protection mileage is not tampered with, and proposes a kind of new speedometer for automobile and deposits
Storage protection device.
Speedometer for automobile storage protection device proposed by the present invention, including wheel speed sensors, is integrated with starting of anti-theft
Machine control module, is equally integrated with the car body control module of anti-theft, described engine control module and car body control module
Composition engine theftproof system, in described speedometer for automobile storage protection device also includes being integrated in described car body control module
Journey computing unit, and single display module, described mileage calculation unit receives in described engine control module transmission
Journey signal of change mileage simultaneously sends mileage message and is shown to described display module.
Inventive engine control module reads the pulse signal of wheel speed sensors output, carries out preliminary mileage and adds up,
Calculate the mileage number of traveling, and send mileage signal to mileage calculation unit, and mileage calculation unit is receiving mileage signal
Afterwards, calculate the total kilometrage of actual travel, and upload mileage message to display module, mileage is carried out by display module and shows.
Due to mileage calculation unit being integrated in car body control module, the distorting and resetting of mileage to be carried out, Zhi Nenggeng
Change car body control module, and because car body control module is integrated with anti-theft, changed car body control module, will lead to newly more
The car body control module changing cannot be mated with engine control module, and cannot start from vehicle.
Further, described mileage calculation unit includes storage protection subelement, and with described storage protection subelement
Connected at least one first storing sub-units and at least one second storing sub-units, described first storing sub-units are random
Memorizer ram, described second storing sub-units are EEPROM eeprom.
The mileage numerical value that described mileage calculation unit calculates will be saved in the first storing sub-units ram, work as mileage
After numerical value value added reaches calibration value, the numerical value in the first storing sub-units ram is saved in the second storing sub-units eeprom
In.When needing to update mileage value, the mileage value that eeprom stores is compared by storage protection subelement, draws a mileage
Value, is equally compared to the mileage value of ram storage, also draws a mileage value, then the mileage value that eeprom is relatively drawn
It is compared with the value that ram draws, with the value that numerical value is larger, all mileage values of the storage in synchronous eeprom and ram.
Another aspect of the present invention also provides a kind of automobile, and it comprises just like the automobile described in aforementioned any one technical scheme
Mileage storage protection device.
Speedometer for automobile storage protection device proposed by the present invention is by mileage calculation of the prior art and one point of display module
For two, and mileage calculation unit is integrated in car body control module, can effectively prevent the mode changing module from carrying out mileage
Reset, insert storage protection subelement in mileage calculation unit, effective protection mileage value is not tampered with simultaneously.
Brief description
Fig. 1 is prior art mileage memory device structure schematic diagram.
Fig. 2 is mileage storage protection apparatus structure schematic diagram of the present invention.
Fig. 3 is mileage calculation cellular construction schematic diagram of the present invention.
Specific embodiment
Describe the specific embodiment of the present invention below in conjunction with the accompanying drawings in detail.
As shown in Fig. 2 speedometer for automobile storage protection device proposed by the present invention includes being integrated with the electromotor of anti-theft 6
Control module 2, is equally integrated with the car body control module 4 of anti-theft 6, and wheel speed sensors 1, engine control module 2
Form engine theftproof system 5 with car body control module 4；Speedometer for automobile storage protection device also includes being integrated in Body Control mould
Mileage calculation unit 7 in block 4, and single display module 8.
The engine theftproof system 5 being formed with car body control module 4 by engine control module 2 has engine anti-theft work(
Can, arbitrarily change engine control module 2 or car body control module 4, all will lead to mutual mismatch, thus vehicle cannot open
Dynamic operation.
Wherein engine control module 2, is mainly used in reading the pulse signal of wheel speed sensors 1 output, carries out preliminary
Mileage adds up, and sends mileage signal to mileage calculation unit 7, and mileage signal includes 13 bit data, the effectiveness of 1 bit
Signal and 1 bit reset signal.Engine control module 2 can carry out fault processing simultaneously, if engine control module
2 detect wheel speed sensors 1 output pulse signal an error has occurred, then effectiveness signal can be set to false, subsequent module
Then will not add up the invalid mileage value being currently received.If engine control module 2 occurs reset, reset signal can be put
Become true, the mileage signal currently receiving can be abandoned and cumulative mileage again by subsequent module.
And mileage calculation unit 7, after receiving mileage signal, calculates the total kilometrage of actual travel, and upload mileage message
To display module 8, mileage is carried out by display module 8 and shows.
Due to mileage calculation unit 7 being integrated in car body control module 4, distorting and resetting of mileage to be carried out, can only
Change car body control module 4, and because car body control module 4 is integrated with anti-theft 6, changed car body control module 4, will lead
Cause the new car body control module 4 changed cannot mate with engine control module 2, and cannot start from vehicle.
Preferably, mileage calculation unit 7 also includes storage protection subelement 71, and at least one first storing sub-units
With at least one the second storing sub-units, as shown in figure 3, the first storing sub-units are random access memory ram in the present embodiment,
Two storing sub-units are EEPROM eeprom, in one embodiment, described storage protection subelement
71 include three the first storing sub-units ram 72, ram 73 and ram 74, and three the second storing sub-units eeprom
75th, eeprom 76 and eeprom 77.Storage protection subelement 71 is electrically connected with the first storing sub-units and the second storing sub-units
Connect.
The mileage numerical value that mileage calculation unit 7 calculates will be saved in the first storing sub-units ram, and the present embodiment divides
It is not stored in continuous storing sub-units ram in three addresses, the new mileage value that mileage calculation unit 7 calculates can write successively
To in ram 72, ram 73 and ram 74.After mileage numerical value value added reaches calibration value, by 3 storing sub-units ram
Numerical value is saved in discontinuous storing sub-units eeprom in three addresses, will numerical value in ram 72, ram 73 and ram 74
Write eeprom 75, eeprom 76 and eeprom 77.
Wherein mileage numerical value value added refers to the increase of the mileage numerical value in ram after the upper numerical value once updating eeprom
Value, is usually used 10bit storage, after updating an eeprom, mileage numerical value value added can be cleared, and is again added up, when
It adds up after reaching calibration value, is triggered again in the mileage numerical value write eeprom in ram.It should be noted that this demarcation
Value can be set by Vehicle manufacturers, such as could be arranged to 0.5 kilometer or 1 kilometer, do not repeating here.
When needing to update mileage value, such as, when mileage numerical value value added reaches calibration value, storage protection subelement 71 will
3 mileage values of eeprom storage are compared, and draw a second mileage value (for example: 3 mileage values of eeprom storage
In, 2 values are equal, then must be that equal value).Equally, 3 mileage values of ram storage are also carried out comparing, and draw one the
One mileage value.Again the second mileage value that eeprom relatively draws is compared with the first mileage value that ram draws, uses wherein several
It is worth larger value, all mileage values of storage in synchronous eeprom and ram.
This mode is effectively prevented being tampered of mileage information, if changed in little eerpom using diagnosis control instruction
During journey value, under conditions of the work of this system, the value of eeprom will be by the institute of the value in ram synchronization (the mileage value storing in ram
Mileage value more than storage in current eeprom).Before vehicle goes out factory, (module factory mode position is true) is it is allowed to pass through
Disable this system to change little mileage, once vehicle release (module factory mode position is false), this will work always, no
Method changes little mileage by way of writing eeprom.
Above example only in order to technical scheme to be described rather than be limited, without departing substantially from the present invention essence
In the case of god and its essence, those of ordinary skill in the art work as and can make various corresponding changes and change according to the present invention
Shape, but these corresponding changes and deformation all should belong to the protection domain of appended claims of the invention.
Claims (2)
1. a kind of speedometer for automobile storage protection device, including wheel speed sensors, is integrated with the engine control module of anti-theft,
Equally it is integrated with the car body control module of anti-theft, described engine control module is prevented with car body control module composition electromotor
Theft system is it is characterised in that in described speedometer for automobile storage protection device also includes being integrated in described car body control module
Journey computing unit, and single display module, described mileage calculation unit receives in described engine control module transmission
Journey signal of change mileage simultaneously sends mileage message and is shown to described display module；
Described mileage calculation unit also includes storage protection subelement, and three being connected with described storage protection subelement
One storing sub-units and three the second storing sub-units；
Described first storing sub-units are random access memory ram；
Described second storing sub-units are EEPROM eeprom；
The mileage numerical value that described mileage calculation unit calculates is respectively stored in address continuously described three first storages
In subelement ram；
After mileage numerical value value added reaches calibration value, the numerical value in described three the first storing sub-units ram is saved to ground
In discontinuous described three the second storing sub-units eeprom in location；
When needing to update mileage value, or when mileage numerical value value added reaches calibration value, described storage protection subelement is by institute
Three mileage values stating in the second storing sub-units eeprom storage are compared, and draw a second mileage value, and by institute
Three mileage values stating in the first storing sub-units ram storage are compared, and draw a first mileage value, then by described second
Mileage value is compared with described first mileage value, with the mileage value that numerical value in the two is larger, synchronous described second storage son list
All mileage values of storage in first eeprom and described first storing sub-units ram.
2. a kind of automobile is it is characterised in that it comprises just like the speedometer for automobile storage protection device described in aforementioned claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410423330.1A CN104417492B (en) | 2013-09-04 | 2014-08-26 | Automobile mileage storage protection device and automobile |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013205464408 | 2013-09-04 | ||
| CN201320546440 | 2013-09-04 | ||
| CN201410423330.1A CN104417492B (en) | 2013-09-04 | 2014-08-26 | Automobile mileage storage protection device and automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104417492A CN104417492A (en) | 2015-03-18 |
| CN104417492B true CN104417492B (en) | 2017-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410423330.1A Active CN104417492B (en) | 2013-09-04 | 2014-08-26 | Automobile mileage storage protection device and automobile |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105564246A (en) * | 2015-12-28 | 2016-05-11 | 广州汽车集团股份有限公司 | Mileage display control method and system |
| CN106092128B (en) * | 2016-06-15 | 2018-09-11 | 南京中车浦镇城轨车辆有限责任公司 | Railcar pulsed machinery mileometer numerical value regulating device |
| CN106248102A (en) * | 2016-07-13 | 2016-12-21 | 东风汽车公司 | Running car total kilometrage in instrument keeps system and method |
| KR20180101004A (en) * | 2017-03-03 | 2018-09-12 | 현대자동차주식회사 | Vehicle and control method thereof |
| DE102018101523B4 (en) * | 2018-01-24 | 2022-10-13 | Bayerische Motoren Werke Aktiengesellschaft | Method and device for storing route data |
| CN110979007A (en) * | 2019-11-27 | 2020-04-10 | 江铃汽车股份有限公司 | Automobile mileage tamper-proofing method and system |
| CN112590687B (en) * | 2020-12-18 | 2023-12-15 | 武汉格罗夫氢能汽车有限公司 | Internet-of-vehicles background checking method for total mileage of fuel cell hydrogen energy automobile |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2043345U (en) * | 1988-11-26 | 1989-08-23 | 浙江工学院 | Electronic speedometer |
| KR100494733B1 (en) * | 2003-08-27 | 2005-06-13 | 현대자동차주식회사 | System and method for preventing the accumulated running distance of vehicle from manufacturing |
| CN2792041Y (en) * | 2005-04-30 | 2006-06-28 | 吕京建 | Automobile multifunctional control type instrument device |
| KR20080044685A (en) * | 2006-11-17 | 2008-05-21 | 현대자동차주식회사 | A drive recording apparatus for prohibiting to change driving distance and diagnosing and the method thereof |
| US8271161B2 (en) * | 2007-02-02 | 2012-09-18 | GM Global Technology Operations LLC | Method and system for securely storing odometer information in an automobile |
| JP5300512B2 (en) * | 2009-02-02 | 2013-09-25 | 矢崎総業株式会社 | Mileage calculation method |
| CN102506888A (en) * | 2011-10-18 | 2012-06-20 | 奇瑞汽车股份有限公司 | Automobile mileage accumulation system and its control method |
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| CN104417492A (en) | 2015-03-18 |
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