CN104417492A - Automobile mileage storage protection device and automobile - Google Patents
Automobile mileage storage protection device and automobile Download PDFInfo
- Publication number
- CN104417492A CN104417492A CN201410423330.1A CN201410423330A CN104417492A CN 104417492 A CN104417492 A CN 104417492A CN 201410423330 A CN201410423330 A CN 201410423330A CN 104417492 A CN104417492 A CN 104417492A
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- Prior art keywords
- mileage
- memory protection
- control module
- automobile
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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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Burglar Alarm Systems (AREA)
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, be specifically related to for recording and storing vehicle driving mileage and the speedometer for automobile memory protection device protecting mileage record not to be tampered, and there is the automobile of this mileage memory protection device.
Background technology
The development of auto-industry and the raising of living standards of the people automobile is progressed into huge numbers of families, along with the maturation of automotive market, used automobile market also develops rapidly.Second-hand car is in the process of transaction, and buyer worries that the mileage of second-hand car is distorted by second-hand car trader most, cannot learn the true running condition of vehicle, and from being strayed into transaction trap, cause unnecessary loss.
Existing speedometer for automobile storage and fender guard are as shown in Figure 1; comprise wheel speed sensors 1; engine control module 2; mileage calculation and display mould fast 3; wherein be integrated with anti-theft 6 in engine control module 2, and form an engine theftproof system 5 with the same Body control module 4 being integrated with anti-theft 6.
For such structure, second-hand car trader can realize change and the clearing of mileage by the method changing mileage calculation and display module 3, thus hides some dangers for for Second-hand Vehicle Transaction, and changes mileage calculation and display module 3 advantage of lower cost.
Therefore pole needs a kind of solution that can effectively prevent mileage to be tampered.
Summary of the invention
Object of the present invention is exactly in order to the record of available protecting mileage is not tampered, and proposes a kind of new speedometer for automobile memory protection device.
The speedometer for automobile memory protection device that the present invention proposes, comprise wheel speed sensors, be integrated with the engine control module of anti-theft, be integrated with the Body control module of anti-theft equally, described engine control module and Body control module form engine theftproof system, described speedometer for automobile memory protection device also comprises the mileage calculation unit be integrated in described Body control module, and independent display module, described mileage calculation unit receives the mileage signal that described engine control module sends and calculates mileage and send mileage message and show to described display module.
Engine control module of the present invention reads the impulse singla that wheel speed sensors exports, carry out preliminary mileage to add up, calculate the mileage number of traveling, and send mileage signal to mileage calculation unit, and mileage calculation unit is after receiving mileage signal, calculate the total kilometrage of actual travel, and upload mileage message to display module, carry out mileage display by display module.
Due to mileage calculation unit is integrated in Body control module, carry out distorting and resetting of mileage, Body control module can only be changed, and be integrated with anti-theft due to Body control module, change Body control module, to the new Body control module changed be caused cannot to mate with engine control module, and cannot start from vehicle.
Further; described mileage calculation unit comprises memory protection subelement; and at least one first storing sub-units to be connected with described memory protection subelement and at least one second storing sub-units; described first storing sub-units is random access memory ram, and described second storing sub-units is EEPROM (Electrically Erasable Programmable Read Only Memo) EEPROM.
The mileage numerical value that described mileage calculation unit calculates will be kept in the first storing sub-units RAM, after mileage numerical value added value reaches calibration value, will be saved in the second storing sub-units EEPROM by the numerical value in the first storing sub-units RAM.When needs upgrade mileage value; the mileage value that EEPROM stores by memory protection subelement compares; draw a mileage value; equally the mileage value that RAM stores is compared; also a mileage value is drawn; again EEPROM is compared the value that the mileage value that draws draws with RAM to compare, by 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 includes the speedometer for automobile memory protection device as described in aforementioned any one technical scheme.
Mileage calculation of the prior art and display module are divided into two by the speedometer for automobile memory protection device that the present invention proposes; and mileage calculation unit is integrated in Body control module; can effectively prevent the mode changing module from carrying out the clearing of mileage; in mileage calculation unit, insert memory protection subelement, available protecting mileage value is not tampered simultaneously.
Accompanying drawing explanation
Fig. 1 is prior art mileage memory device structure schematic diagram.
Fig. 2 is mileage memory protection apparatus structure schematic diagram of the present invention.
Fig. 3 is mileage calculation block construction schematic diagram of the present invention.
Detailed description of the invention
The specific embodiment of the present invention is described in detail below in conjunction with accompanying drawing.
As shown in Figure 2, the speedometer for automobile memory protection device that the present invention proposes comprises the engine control module 2 being integrated with anti-theft 6, be integrated with the Body control module 4 of anti-theft 6 equally, and wheel speed sensors 1, engine control module 2 and Body control module 4 form engine theftproof system 5; Speedometer for automobile memory protection device also comprises the mileage calculation unit 7 be integrated in Body control module 4, and independent display module 8.
The engine theftproof system 5 formed by engine control module 2 and Body control module 4 has engine anti-theft function, changes engine control module 2 or Body control module 4 arbitrarily, all will cause mutual not mating, thus vehicle cannot startup optimization.
Wherein engine control module 2, be mainly used in the impulse singla reading wheel speed sensors 1 output, carry out preliminary mileage and add up, and send mileage signal to mileage calculation unit 7, mileage signal comprises 13 bit data, the validity signal of 1 bit and 1 bit Reset signal.Engine control module 2 can carry out error handle simultaneously, if engine control module 2 detects the wrong generation of impulse singla that wheel speed sensors 1 exports, then validity signal can be set to False, subsequent module then can not add up the current invalid mileage value received.If Reset occurs engine control module 2, then Reset signal can be set to True, the current mileage signal received can abandon and the mileage that again adds up by subsequent module.
And mileage calculation unit 7 is after receiving mileage signal, calculate the total kilometrage of actual travel, and upload mileage message to display module 8, carry out mileage display by display module 8.
Due to mileage calculation unit 7 is integrated in Body control module 4, carry out distorting and resetting of mileage, Body control module 4 can only be changed, and be integrated with anti-theft 6 due to Body control module 4, change Body control module 4, to the new Body control module 4 changed be caused cannot to mate with engine control module 2, and cannot start from vehicle.
Preferably; mileage calculation unit 7 also comprises memory protection subelement 71; and at least one first storing sub-units and at least one second storing sub-units; as shown in Figure 3; in the present embodiment, the first storing sub-units is random access memory ram; second storing sub-units is EEPROM (Electrically Erasable Programmable Read Only Memo) EEPROM; in one embodiment; described memory protection subelement 71 comprises three the first storing sub-units RAM 72, RAM 73 and RAM 74, and three the second storing sub-units EEPROM 75, EEPROM 76 and EEPROM 77.Memory protection subelement 71 is electrically connected with the first storing sub-units and the second storing sub-units.
The mileage numerical value that mileage calculation unit 7 calculates will be kept in the first storing sub-units RAM, the present embodiment is stored in three address continuous print storing sub-units RAM respectively, and the new mileage value that mileage calculation unit 7 calculates can be written in RAM 72, RAM 73 and RAM 74 successively.After mileage numerical value added value reaches calibration value, numerical value in 3 storing sub-units RAM is saved in three discontinuous storing sub-units EEPROM in address, by numerical value write EEPROM 75, EEPROM 76 and EEPROM 77 in RAM 72, RAM 73 and RAM 74.
Wherein mileage numerical value added value refer to upper once upgrade the numerical value of EEPROM after the added value of mileage numerical value in RAM, usual use 10bit stores, after upgrading an EEPROM, mileage numerical value added value can be cleared, again add up, when it is cumulative reach calibration value after, by the mileage numerical value write EEPROM that again triggers in RAM.It should be noted that, this calibration value can be set by Vehicle manufacturers, such as can be set to 0.5 kilometer or 1 kilometer, not repeat here.
When needs upgrade mileage value; such as when mileage numerical value added value reaches calibration value; 3 mileage values that EEPROM stores by memory protection subelement 71 compare; show that a second mileage value (such as: in 3 mileage values that EEPROM stores; 2 values are equal, then must be that equal value).Equally, 3 mileage values that RAM stores also compare, and draw a first mileage value.Again EEPROM is compared the first mileage value that the second mileage value of drawing draws with RAM to compare, by the value that wherein numerical value is larger, all mileage values stored in synchronous EEPROM and RAM.
This mode will effectively prevent being tampered of mileage information, if when using diagnosis control instruction to change the mileage value of little EERPOM, under the condition of this system works, the value of EEPROM will by the value in RAM synchronous (the mileage value stored in RAM is greater than the mileage value stored in current EEPROM).Before vehicle goes out factory (module factory mode position is True), allow to change little mileage by forbidding this system, once vehicle release (module factory mode position is False), this will work always, cannot be changed little mileage by the mode writing EEPROM.
Above embodiment is only in order to illustrate technical scheme of the present invention but not to be limited; when not deviating from the present invention's spirit and essence thereof; those of ordinary skill in the art are when making various corresponding change and distortion according to the present invention, but these change accordingly and are out of shape the protection domain that all should belong to the claim appended by the present invention.
Claims (10)
1. a speedometer for automobile memory protection device, comprise wheel speed sensors, be integrated with the engine control module of anti-theft, be integrated with the Body control module of anti-theft equally, described engine control module and Body control module form engine theftproof system, it is characterized in that, described speedometer for automobile memory protection device also comprises the mileage calculation unit be integrated in described Body control module, and independent display module, described mileage calculation unit receives the mileage signal that described engine control module sends and calculates mileage and send mileage message and show to described display module.
2. speedometer for automobile memory protection device as claimed in claim 1; it is characterized in that; described mileage calculation unit also comprises memory protection subelement, and at least one first storing sub-units be connected with described memory protection subelement and at least one second storing sub-units.
3. speedometer for automobile memory protection device as claimed in claim 2, it is characterized in that, described first storing sub-units is random access memory ram.
4. speedometer for automobile memory protection device as claimed in claim 3, it is characterized in that, described memory protection subelement includes three described first storing sub-units RAM.
5. speedometer for automobile memory protection device as claimed in claim 4, it is characterized in that, described second storing sub-units is EEPROM (Electrically Erasable Programmable Read Only Memo) EEPROM.
6. speedometer for automobile memory protection device as claimed in claim 5, it is characterized in that, described memory protection subelement includes three described second storing sub-units EEPROM.
7. speedometer for automobile memory protection device as claimed in claim 6, it is characterized in that, the mileage numerical value that described mileage calculation unit calculates is respectively stored in three the first storing sub-units RAM described in the continuous print of address.
8. speedometer for automobile memory protection device as claimed in claim 7; it is characterized in that; after mileage numerical value added value reaches calibration value, the numerical value in described three the first storing sub-units RAM is saved in discontinuous described three the second storing sub-units EEPROM in address.
9. speedometer for automobile memory protection device as claimed in claim 8, it is characterized in that, when needs upgrade mileage value, or when mileage numerical value added value reaches calibration value, three the mileage values stored in described second storing sub-units EEPROM compare by described memory protection subelement, draw a second mileage value, and three the mileage values stored in described first storing sub-units RAM are compared, draw a first mileage value, again described second mileage value and described first mileage value are compared, by the mileage value that numerical value in the two is larger, the all mileage values synchronously stored in described second storing sub-units EEPROM and described first storing sub-units RAM.
10. an automobile, is characterized in that, its to include any one of aforementioned claim 1 to 9 or multinomial as described in speedometer for automobile memory protection device.
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 |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320546440 | 2013-09-04 | ||
| CN2013205464408 | 2013-09-04 | ||
| CN201410423330.1A CN104417492B (en) | 2013-09-04 | 2014-08-26 | Automobile mileage storage protection device and automobile |
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| Publication Number | Publication Date |
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| CN104417492A true CN104417492A (en) | 2015-03-18 |
| CN104417492B CN104417492B (en) | 2017-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410423330.1A Active CN104417492B (en) | 2013-09-04 | 2014-08-26 | Automobile mileage storage protection device and automobile |
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Cited By (8)
| 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 |
| CN106092128A (en) * | 2016-06-15 | 2016-11-09 | 南京中车浦镇城轨车辆有限责任公司 | Railcar pulsed machinery mileometer numerical value adjusting means |
| CN106248102A (en) * | 2016-07-13 | 2016-12-21 | 东风汽车公司 | Running car total kilometrage in instrument keeps system and method |
| CN108528215A (en) * | 2017-03-03 | 2018-09-14 | 现代自动车株式会社 | The control method of vehicle and vehicle |
| 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 |
| CN111527381A (en) * | 2018-01-24 | 2020-08-11 | 宝马股份公司 | Method and device for storing distance data |
| CN112590687A (en) * | 2020-12-18 | 2021-04-02 | 武汉格罗夫氢能汽车有限公司 | Car networking background checking method for total mileage of fuel cell hydrogen energy car |
| DE102017129806B4 (en) | 2016-12-15 | 2024-07-04 | GM Global Technology Operations LLC | VEHICLE WITH INTERNAL COMBUSTION ENGINE AND CONTROL MODULE FOR DETERMINING THE FUEL CONSUMPTION OF THE INTERNAL COMBUSTION ENGINE |
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Cited By (11)
| 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 |
| CN106092128A (en) * | 2016-06-15 | 2016-11-09 | 南京中车浦镇城轨车辆有限责任公司 | Railcar pulsed machinery mileometer numerical value adjusting means |
| 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 |
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| DE102017129806B4 (en) | 2016-12-15 | 2024-07-04 | GM Global Technology Operations LLC | VEHICLE WITH INTERNAL COMBUSTION ENGINE AND CONTROL MODULE FOR DETERMINING THE FUEL CONSUMPTION OF THE INTERNAL COMBUSTION ENGINE |
| CN108528215A (en) * | 2017-03-03 | 2018-09-14 | 现代自动车株式会社 | The control method of vehicle and vehicle |
| CN111527381A (en) * | 2018-01-24 | 2020-08-11 | 宝马股份公司 | Method and device for storing distance data |
| CN111527381B (en) * | 2018-01-24 | 2024-05-28 | 宝马股份公司 | Method and device for storing journey 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 |
| CN112590687A (en) * | 2020-12-18 | 2021-04-02 | 武汉格罗夫氢能汽车有限公司 | Car networking background checking method for total mileage of fuel cell hydrogen energy car |
| 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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