CN101169859B - For the remote diagnosis system of tamper detection vehicle calibration - Google Patents
For the remote diagnosis system of tamper detection vehicle calibration Download PDFInfo
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- CN101169859B CN101169859B CN200610163906.0A CN200610163906A CN101169859B CN 101169859 B CN101169859 B CN 101169859B CN 200610163906 A CN200610163906 A CN 200610163906A CN 101169859 B CN101169859 B CN 101169859B
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Abstract
Remote diagnosis system for tamper detection vehicle calibration the present invention relates to a kind ofly distorts diagnostic system for vehicle, and it comprises the control system storing nominal data.Transmitter is this nominal data of wireless transmission optionally.Away from the service backup system wireless receiving of vehicle from the nominal data of transmitter.Manufacturer's infosystem receives the nominal data from service backup system, this nominal data is compared with nominal data of dispatching from the factory, optionally generates distort mark based on nominal data.
Description
Technical field
The present invention relates generally to a kind of vehicle control system, particularly remote diagnosis system distorted by a kind of vehicle.
Background technology
Vehicular manufacturer ensures vehicle mass by providing conditional guarantee statement.This guarantee statement typically comprises the power system part of vehicle.Such as, if power system part breaks down, then manufacturer will not need the imposition of surcharge to be customer repair power system part.
Manufacturer's test, assess and regulate the nominal data of engine and variator, to optimize discharge, performance, permanance and/or other design considerations.Some clients may substituted for nominal data of dispatching from the factory, and attempt the performance revising and/or improve vehicle.This guarantee statement typically eliminates the damage occurred due to the amendment of user., the amendment of user may be difficult to be detected.
Such as, the nominal data of dynamical system can be revised to improve the performance of vehicle, the nominal data of this dynamical system relates to Electronic Throttle Control (ETC), fuel sprays, the set-point of transmission gear change point and/or turbosupercharger and supercharger.The performance increased may be damaged power system part and/or accelerate the wearing and tearing of power system part.When damage occurs, some client's reprogrammings, to make the nominal data of amendment revert to nominal data of dispatching from the factory, and attempt by the repairing damaged part of guarantee statement.In the amendment evidence situation not having client, guarantee statement must be cashed by manufacturer, and this unnecessarily increases guarantee statement cost.
Summary of the invention
Diagnostic system of distorting for vehicle comprises the vehicle control system storing nominal data.Transmitter is this nominal data of wireless transmit optionally.
In further feature, system comprises this and distorts diagnostic system, also comprises service backup system, this service backup system away from vehicle and wireless receiving from the nominal data of transmitter.Manufacturer's infosystem receives the nominal data from service backup system, this nominal data is compared with predetermined nominal data, and based on described comparison, optionally generates and distort mark.
In further feature, the remote service backup system in vehicle comprises transmitter, and receives the nominal data from vehicle control system.Manufacturer's infosystem comprises error detection module, and it adopts cyclic redundancy check (CRC) to check the data transmission error in nominal data.This manufacturer's infosystem also comprises distorts inspection module, and this module compares nominal data and predetermined nominal data, and when nominal data and predetermined nominal data unequal time, generate distort mark.This manufacturer's infosystem also comprises database, and this database can comprise the vehicle service archives relevant with vehicle.It is relevant with these vehicle service archives that this distorts mark.This vehicle control system comprises Powertrain control system.
According to detailed description below, other application of the present invention can become clearly.Should be understood that, although above-mentioned detailed description and concrete example represent the preferred embodiments of the present invention, these describe in detail and concrete example is for illustrating, are not limited to scope of the present invention.
Accompanying drawing explanation
Can comprehend the present invention from detailed description book and accompanying drawing, wherein:
Figure 1A shows vehicle according to the invention and distorts remote diagnosis system;
Figure 1B shows according to the vehicle comprising Powertrain control system and remote service backup system of the present invention;
Fig. 2 A is functional-block diagram, it also illustrates according to Powertrain control system of the present invention and remote service backup system;
Fig. 2 B is process flow diagram, it illustrates the step according to the present invention, nominal data being transferred to service backup system from Powertrain control system;
Fig. 3 A is functional-block diagram, it illustrates according to service backup system of the present invention and manufacturer's infosystem;
Fig. 3 B is process flow diagram, it illustrates according to step of distorting mark for generating vehicle of the present invention;
Fig. 4 A is functional-block diagram, it illustrates according to manufacturer of the present invention infosystem and distributor information system; With
Fig. 4 B is process flow diagram, it illustrates according to the step for determining guarantee statement validity of the present invention.
Embodiment
Description of a preferred embodiment is in fact just exemplary below, is used for limiting the present invention, its application and purposes anything but.Terminology used here " module " or " equipment " refer to the processor (shared, special or group) of application-specific IC (ASIC), electronic circuit, the one or more software of execution or firmware program and storer, combinational logic circuit and/or provide other suitable components of described function.
According to the present invention, manufacturer is at service backup system such as General Motors
help under detect distorting of nominal data.Exemplary nominal data can include, but are not limited to, and throttle position, fuel spray nominal data, transmission gear change point, turbosupercharger nominal data and/or supercharger nominal data.This service backup system receives the nominal data from vehicle, and this nominal data is transferred to manufacturer's infosystem.More specifically, after engine start pre-determined number, vehicle at random and/or can adopt other standard transmission nominal data.Once receive nominal data, manufacturer's infosystem determines whether distorting of nominal data occurs.
Referring now to Figure 1A, in an exemplary embodiments according to the present invention, vehicle is distorted remote diagnosis system 10 and is comprised vehicle 12, manufacturer's infosystem 14, service backup system 16 and distributor information system 26.Adopt land and/or satellite link that nominal data is wirelessly transmitted to service backup system 16 from vehicle 12.This land link can include, but are not limited to, cellular radio 18.This satellite link can comprise one or more satellite 22.Nominal data is transferred to manufacturer's infosystem 14 by distributed communication system (DCS) 24 by service backup system 16.This DCS24 can comprise connection on wide area network (WAN), the Internet, PSTN (PSTN) and/or other network.The tamper condition of vehicle 12 is optionally transferred to distributor information system 26 by distributed communication system (DCS) 24 by manufacturer's infosystem 14.
Referring now to Figure 1B, vehicle 12 comprises Powertrain control system 30, and it communicates with remote service backup system 32.Powertrain control system 30 utilizes nominal data of dispatching from the factory to programme, to control the operation of vehicle 12 power system part.Vehicle operator, in order to serve needs, is connected with service backup system 16 by remote service backup system 32.Such as, this service backup system 16 can pass on travel direction, position and/or other request by remote service backup system 32.Remote service backup system 32 receives the nominal data from Powertrain control system 30, and by antenna 34, this nominal data is transferred to service backup system 16.
Referring now to Fig. 2 A, Powertrain control system 30 comprises engine control module (ECM) 42 and engine 44.Engine 44 comprises some cylinders 46, and each cylinder is with one or more gas admittance valve and/or vent valve (not shown).Engine 44 also comprises fuel injection system 48 and firing system 50.Electronic Throttle Control (ETC) 52 regulates the throttle position in inlet manifold 54 based on the position of gas pedal (not shown) and the throttle control algorithm that performed by ECM42.One or more sensor 56 and 58, such as manifold pressure sensor and/or manifold air temperature sensor, detect the pressure in inlet manifold 54 and/or air themperature.Emission sensor 60 and other sensor 62, such as temperature sensor, baroceptor and/or other conventional sensors, by ECM42 for controlling air/fuel ratio and the discharge of engine 44.The driving torque that engine 44 produces is transferred to front-wheel and/or the trailing wheel (not shown) of vehicle 12 by variator 66.
Control module 70 is connected with input/output interface 72.Control module 70 communicates with ECM42, and this control module may independent of ECM42 (as shown in the figure) or integrated with ECM42.Control module 70 is communicated with vehicle display 74, vehicle audio system 76, microphone 80 and/or one group of I/O control knob 82 by interface 72.Vehicle display 74 allows vehicle 12 to show the information provided by Powertrain control system 30 and service backup system 16, such as performance specification, data, time and/or global location.Vehicle audio system 76 allow vehicle 12 export from service backup system 16 audio frequency.Amplifier 77 amplifying signal, and export sound by multiple loudspeaker 78.Microphone 80 and one group of button 82 allow the user of vehicle 12 to communicate with service backup system 16.Transmitter 86 transmits nominal data by antenna 34.
Referring now to Fig. 2 B, data transmission method 100 according to the present invention has set forth the transmission to service backup system 16 of the coding of nominal data and nominal data.In step 110, nominal data is encoded.Such as, in the present embodiment, the demarcation part sequence number of ECM42 coding checkout and data and/or nominal data., those skilled in the art will appreciate that the data of other type equally can be encoded.Adopt in this way, user is difficult to amendment nominal data (namely, upgrade School Affairs data and/or demarcate partial order number).In other words, user can not revise nominal data and calculation check and data again simply.
In the step 120, ECM42 adopts cyclic redundancy check (CRC) (CRC) algorithm nominal data to be encoded, to detect the data error that may occur in the data transmission.More specifically, CRC algorithm adds one or more position to nominal data block.These positions increased are used for determining, identifying and/or correction of data error.After data are transferred to manufacturer's infosystem 14, the position of this increase is for checking nominal data.If the error of detecting, then nominal data is destroyed and may be dropped.In step 130, nominal data is transferred to remote service backup system 32 by ECM42.In step 140, nominal data is transferred to service backup system 16 by antenna 34 by transmitter 86.
Referring now to Fig. 3 A, functional-block diagram 150 comprises service backup system 16 and manufacturer's infosystem 14.Service backup system 16 comprises receiver 152, server 154 and storer 155.Receiver 152 receives the nominal data from vehicle 12.Server 154 guides nominal data to flow into manufacturer's infosystem 14 by DCS24.Storer 155 can be adopted when server 154 can not process all input nominal datas.
Error detection module 156 receives the nominal data from service backup system 16, and checks the error of nominal data.Distort inspection module 158 nominal data and nominal data of dispatching from the factory are compared.When the nominal data of vehicle 12 is unequal with nominal data of dispatching from the factory, distorts inspection module 158 and generate and distort mark for vehicle service archives.Adopt database 160 to store multiple vehicle service archives.Database 160 is connected with server 162, and this server 162 processes the service files request from distant place (such as distributor information system 26).
The step of distorting mark according to the service files for generating vehicle 12 of the present invention is shown referring now to Fig. 3 B, flow process Figure 200.In step 210, serve backup system 16 and nominal data is transferred to manufacturer's infosystem 14.In a step 220, controller use CRC position and CRC algorithm check the error in nominal data.In step 230, whether controller determination nominal data is effective.If nominal data is destroyed, controller enters step 240, in this step, be dropped, and this process terminates header length.If nominal data is not destroyed, then controller enters step 250.
In step 250, whether controller determination nominal data is equal with nominal data of dispatching from the factory.If nominal data equals nominal data of dispatching from the factory, then controller optionally abandons information in step 240.If nominal data is unequal with nominal data of dispatching from the factory, then in step 260 controller generate vehicle 12 distort mark.
Referring now to Fig. 4 A, functional-block diagram 300 comprises vehicle 12, manufacturer's infosystem 14 and distributor information system 26.Vehicle 12 is taken to local dealer and sentences and just keep in repair by client, and this local dealer and distributor information system 26 contact.Distributor information system 26 comprises personnel 302, and these personnel adopt server 304 to access the service files of vehicle 12.Server 162 retrieves the service files of vehicle 12 from database 160.
Referring now to Fig. 4 B, process flow diagram 400 shows the process of the guarantee statement verifying dynamical system according to the present invention.In step 410, vehicle 12 is taken to dealer place by client, so that by guarantee statement maintenance vehicle.At step 420 which, personnel 302 retrieve the service files of vehicle from database 160.In step 430, personnel 302 check the service files of vehicle, to obtain relevant to vehicle 12 distorting mark.If vehicle is not labeled, then cash the guarantee statement of dynamical system in step 440, this process terminates.If vehicle has been labeled, then in step 460, guarantee statement is invalid.
Those skilled in the art recognize that extensive instruction of the present invention can realize in different forms now from the above description.Thus, although describe the present invention in conjunction with specific embodiment herein, but true scope of the present invention should not be confined to this, because by the research to accompanying drawing, instructions and claim subsequently, other amendment will become obvious to those skilled in the art.
Claims (14)
1. distort a diagnostic system for vehicle, comprising:
Vehicle control system, the nominal data of this vehicle control system to vehicle is encoded, and the cyclic redundancy check (CRC) data of nominal data coded by producing;
Transmitter, the nominal data that this transmitter is optionally encoded described in wireless transmission and described CRC data; And
Away from manufacturer's infosystem of described vehicle, this manufacturer's infosystem wirelessly receives the nominal data of described coding and described CRC data, based on relatively coming between the nominal data of the described coding of described vehicle and predetermined nominal data optionally produce be associated with vehicle distort mark, and forbid described comparison based on described CRC data selection.
2. distort diagnostic system as claimed in claim 1, it is characterized in that, the nominal data of described vehicle at least comprises throttle position data, one of fueling data and shifting of transmission point data.
3. distort diagnostic system as claimed in claim 1, it is characterized in that, the nominal data of described vehicle comprise in turbosupercharger data and supercharger data one of at least.
4. distort diagnostic system as claimed in claim 1, it is characterized in that, described nominal data is encoded to School Affairs data by described vehicle control system.
5. distort diagnostic system as claimed in claim 1, it is characterized in that, described nominal data is encoded to the one or more demarcation part sequence numbers corresponding to described nominal data by described vehicle control system.
6. distort diagnostic system as claimed in claim 1, it is characterized in that, when the nominal data of the described coding of vehicle is greater than or less than predetermined nominal data, described in described manufacturer infosystem produces, distort mark.
7. a system, comprising: according to claim 1ly distort diagnostic system; With distributor information system, based on described state of distorting mark, manufacturer's infosystem described in this distributor information system access is to judge that whether the guarantee statement being responsible for guarantee vehicle powertrain is invalid.
8. distort a diagnostic method for vehicle, the method comprises:
The nominal data of vehicle is encoded;
The cyclic redundancy check (CRC) data of the nominal data coded by generation;
The nominal data of optionally encoding described in wireless transmission and described CRC data;
The nominal data of described coding and described CRC data are wirelessly received in the position away from described vehicle;
Based between the nominal data of the described coding of described vehicle and predetermined nominal data relatively come this regioselectivity produce be associated with described vehicle distort mark; And
Described comparison is forbidden based on described CRC data selection.
9. distort diagnostic method as claimed in claim 8, it is characterized in that, the nominal data of described vehicle at least comprises throttle position data, one of fueling data and shifting of transmission point data.
10. distort diagnostic method as claimed in claim 8, it is characterized in that, the nominal data of described vehicle comprise in turbosupercharger data and supercharger data one of at least.
11. distort diagnostic method as claimed in claim 8, it is characterized in that, described coding comprises described nominal data is encoded to School Affairs data.
12. distort diagnostic method as claimed in claim 8, it is characterized in that, described coding comprises the one or more demarcation part sequence numbers described nominal data be encoded to corresponding to described nominal data.
13. distort diagnostic method as claimed in claim 8, it is characterized in that, also comprise when the nominal data of the described coding of described vehicle is greater than or less than predetermined nominal data, distort mark described in generation.
14. distort diagnostic method as claimed in claim 8, it is characterized in that, also comprise accessing to be positioned at described in described position distorting mark to judge that whether the guarantee statement being responsible for guarantee vehicle powertrain is invalid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610163906.0A CN101169859B (en) | 2006-10-27 | 2006-10-27 | For the remote diagnosis system of tamper detection vehicle calibration |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200610163906.0A CN101169859B (en) | 2006-10-27 | 2006-10-27 | For the remote diagnosis system of tamper detection vehicle calibration |
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| Publication Number | Publication Date |
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| CN101169859A CN101169859A (en) | 2008-04-30 |
| CN101169859B true CN101169859B (en) | 2015-09-23 |
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| CN200610163906.0A Expired - Fee Related CN101169859B (en) | 2006-10-27 | 2006-10-27 | For the remote diagnosis system of tamper detection vehicle calibration |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011025416A1 (en) * | 2009-08-28 | 2011-03-03 | Volvo Lastvagnar Ab | Tampering detection method |
| CN102297259B (en) * | 2011-05-12 | 2014-07-16 | 浙江吉利汽车研究院有限公司 | Improved method for controlling automatic shift of transmission and TCU (transmission control unit) |
| CN103235567B (en) * | 2013-03-29 | 2015-11-25 | 北京经纬恒润科技有限公司 | The transmission method of nominal data, Apparatus and system |
| KR102417383B1 (en) * | 2016-12-15 | 2022-07-06 | 현대자동차주식회사 | Method for detecting device of tampering with data for operating engine |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1522895A (en) * | 2003-09-11 | 2004-08-25 | 辰 丁 | Multifunctional vehicle real-time monitoring system (GSM/GPRS) |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1522895A (en) * | 2003-09-11 | 2004-08-25 | 辰 丁 | Multifunctional vehicle real-time monitoring system (GSM/GPRS) |
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