CN102259636B - Anti-theft method and system for automobiles - Google Patents
Anti-theft method and system for automobiles Download PDFInfo
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- CN102259636B CN102259636B CN201110110703.6A CN201110110703A CN102259636B CN 102259636 B CN102259636 B CN 102259636B CN 201110110703 A CN201110110703 A CN 201110110703A CN 102259636 B CN102259636 B CN 102259636B
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Abstract
The invention relates to an anti-theft method for automobiles, which comprises the following steps that: a decryption algorithm and a key which are matched with a random sequence code rule generated by an anti-theft key are preset in an engine controller; the anti-theft key is inserted into an ignition lock, generates a random sequence code, calculates according to the decryption algorithm and the key, and sends the random sequence code and a result sequence code; the engine controller receives the random sequence code and the result sequence code and performs unlocking calculation; the anti-theft key is successfully unlocked when an unlocking calculation result is correct; a decryption algorithm and a key which are matched with an owner identity (ID) and an owner ID decryption sequence code are preset in a power assembly controller; the power assembly controller receives the encrypted owner ID and the encrypted owner ID decryption sequence code and performs decoding operation; a braking system is unlocked after the decoding is successful; and a decoding success command is sent to the engine controller. The anti-theft method and an anti-theft system for the automobiles are used for preventing the theft of vehicles and improving the safety of the vehicles.
Description
Technical field
The present invention relates to automotive field, particularly a kind of automobile anti-theft method and system.
Background technology
Vehicle anti-theft technology is divided into two large classes at present: mechanical type and electronic type.
Mechanical type anti-theft technology adopts specific mechanical device locking wheel steering system, or the means such as fuel-feed system reach antitheft object, and this mode is comparatively directly simple, but anti-theft effect is poor.
Electronic type anti-theft technique adopts the modes such as electron key decoding, radio communication decoding or remote-control radio key to realize security by controlling the modes such as car door, engine starting and fuel-feed system conventionally.This mode is complicated compared with mechanical type, and anti-theft effect is better, but also can be ineffective in the situation such as single anti-theft technique is lost at key, password is maliciously stolen.
Especially for heavy-duty commercial vehicle, due to carbody large (wireless transmission distance is far away), reliability requirement is high, therefore realizes the antitheft of vehicle, and the safety that improves vehicle, more seems particularly important.
Therefore, how providing a kind of automobile anti-theft method and system, strengthen the anti-theft effect of vehicle, improve the safety of vehicle, is those skilled in the art's technical issues that need to address.
Summary of the invention
The object of this invention is to provide a kind of automobile anti-theft method and system, for realizing the antitheft of vehicle, improve the safety of vehicle.
For addressing the above problem, the invention provides a kind of automobile anti-theft method, described method comprises:
In engine controller ECU, set in advance with anti-theft key and produce decipherment algorithm and the secret key that stochastic sequence code rule matches;
Anti-theft key inserts in ignition lock, and anti-theft key produces stochastic sequence code according to stochastic sequence code create-rule, and calculates according to above-mentioned decipherment algorithm and secret key, and anti-theft key sends stochastic sequence code together with result sequence code;
Engine controller ECU receives described stochastic sequence code and result sequence code, according to described decipherment algorithm, carries out release calculating; When release result of calculation is confirmed when correct, anti-theft key release success;
In power assembly controller PCU, set in advance the decipherment algorithm and the secret key that match with car owner's identity ID and car owner's identity decrypted sequences code;
Power assembly controller PCU receives car owner's identity ID and the car owner's identity decrypted sequences code after the encryption that antitheft identification card sends, the computing of decoding;
After successfully decoded, brake system is carried out to release; Send successfully decoded order to engine controller ECU.
Preferably, described power assembly controller PCU receives car owner's identity ID and the car owner's identity decrypted sequences code after the encryption that antitheft identification card sends by antitheft identification receiving wire.
Preferably, between described antitheft identification receiving wire and antitheft identification card, by less radio-frequency, transmit.
Preferably, described car owner's identity ID has uniqueness, and described car owner's identity ID is corresponding with car owner's identity decrypted sequences code.
Preferably, described car owner's identity decrypted sequences code is specially deciphering sequence string.
Preferably, after described successfully decoded, by opening brake control mechanism, brake system is carried out to release; By CAN bus, send successfully decoded order to engine controller ECU.
Preferably, after described successfully decoded, brake system is carried out to release; Send after the step of successfully decoded order to engine controller ECU, comprising:
Carry out automobile starting program.
Preferably, described automobile starting program comprises:
Receive engine ignition instruction, starter motor, carries out oil spout control command.
The present invention also provides a kind of automotive theft proof system, and described system comprises: engine controller ECU, anti-theft key, power assembly controller PCU;
Engine controller ECU further comprises engine controller memory cell, engine controller receiving element and engine controller decryption unit;
In described engine controller memory cell pre-stored have with anti-theft key produce decipherment algorithm and the secret key that stochastic sequence code rule matches;
Described anti-theft key inserts in ignition lock, and anti-theft key produces stochastic sequence code according to stochastic sequence code create-rule, and calculates according to above-mentioned decipherment algorithm and secret key, and anti-theft key sends stochastic sequence code together with result sequence code;
Engine controller receiving element receives described stochastic sequence code and result sequence code, and engine controller decryption unit is carried out release calculating according to described decipherment algorithm; When release result of calculation is confirmed when correct, anti-theft key release success;
Power assembly controller PCU further comprises power assembly controller memory cell, power assembly controller receiving element and power assembly controller decryption unit;
In described power assembly controller PCU, memory cell is pre-stored decipherment algorithm and a secret key matching with car owner's identity ID and car owner's identity decrypted sequences code;
Described power assembly controller receiving element receives car owner's identity ID and the car owner's identity decrypted sequences code after the encryption that antitheft identification card sends;
The computing of decoding of power assembly controller decryption unit; After successfully decoded, brake system is carried out to release; Send successfully decoded order to engine controller ECU.
Preferably, described power assembly controller receiving element is specially antitheft identification receiving wire.
Relative prior art, has following technique effect:
Automobile anti-theft method described in the embodiment of the present invention, because anti-theft key inserts in ignition lock, anti-theft key produces stochastic sequence code according to stochastic sequence code create-rule, and calculates according to above-mentioned decipherment algorithm and secret key, and anti-theft key sends stochastic sequence code together with result sequence code; Engine controller ECU receives described stochastic sequence code and result sequence code, according to described decipherment algorithm, carries out release calculating; When release result of calculation is confirmed when correct, anti-theft key release success; Realize like this and weigh antitheft with regard to one of automobile.And power assembly controller PCU receives car owner's identity ID and car owner's identity decrypted sequences code after the encryption that antitheft identification card sends, the computing of decoding; After successfully decoded, brake system is carried out to release; Send successfully decoded order to engine controller ECU; So just realized the double anti-theft of automobile.
Automobile anti-theft method described in the embodiment of the present invention, can realize the double anti-theft of the automobiles such as commercial car is controlled, and improves the safety of vehicle.
Accompanying drawing explanation
Fig. 1 is automobile anti-theft method diagram of circuit described in the embodiment of the present invention;
Fig. 2 is automobile anti-theft method application schematic diagram described in the embodiment of the present invention;
Fig. 3 is automotive theft proof system constructional drawing described in the embodiment of the present invention.
The specific embodiment
The invention provides a kind of automobile anti-theft method and system, for realizing the antitheft of vehicle, improve the safety of vehicle.
In order to make those skilled in the art understand better the present invention program, below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Referring to Fig. 1, Fig. 1 is automobile anti-theft method diagram of circuit described in the embodiment of the present invention; Fig. 2 is automobile anti-theft method application schematic diagram described in the embodiment of the present invention.
Automobile anti-theft method described in the embodiment of the present invention, described method comprises:
In S100, engine controller ECU, set in advance with anti-theft key and produce decipherment algorithm and the secret key that stochastic sequence code rule matches.
Algorithm specifically can adopt AES (Advanced Encryption Standard), but sequence have figure place minute, as 128,64 etc.Secret key is a sequence string, conventionally adopts 32.Secret key is encrypt and decrypt component part.
S200, anti-theft key insert in ignition lock, and anti-theft key produces stochastic sequence code according to stochastic sequence code create-rule, and calculates according to above-mentioned decipherment algorithm and secret key, and anti-theft key sends stochastic sequence code together with result sequence code.
S300, engine controller ECU receive described stochastic sequence code and result sequence code, according to described decipherment algorithm, carry out release calculating; When release result of calculation is confirmed when correct, anti-theft key release success.
In S400, power assembly controller PCU, set in advance the decipherment algorithm and the secret key that match with car owner's identity ID and car owner's identity decrypted sequences code.
Algorithm can adopt AES (Advanced Encryption Standard), but sequence have figure place minute, as 128,64 etc.Secret key is a sequence string, conventionally adopts 32.Secret key is encrypt and decrypt component part.S500, power assembly controller PCU receive car owner's identity ID and the car owner's identity decrypted sequences code after the encryption that antitheft identification card sends, the computing of decoding.
Described car owner's identity decrypted sequences code is specifically as follows deciphering sequence string.
After S600, successfully decoded, brake system is carried out to release; Send successfully decoded order to engine controller ECU.
After step S600, can comprise the automobile starting program of carrying out.
Automobile anti-theft method described in the embodiment of the present invention, because anti-theft key inserts in ignition lock, anti-theft key produces stochastic sequence code according to stochastic sequence code create-rule, and calculates according to above-mentioned decipherment algorithm and secret key, and anti-theft key sends stochastic sequence code together with result sequence code.Engine controller ECU receives described stochastic sequence code and result sequence code, according to described decipherment algorithm, carries out release calculating; When release result of calculation is confirmed when correct, anti-theft key release success; Realize like this and weigh antitheft with regard to one of automobile.And power assembly controller PCU receives car owner's identity ID and car owner's identity decrypted sequences code after the encryption that antitheft identification card sends, the computing of decoding; After successfully decoded, brake system is carried out to release; Send successfully decoded order to engine controller ECU; So just realized the double anti-theft of automobile.
Automobile anti-theft method described in the embodiment of the present invention, can realize the double anti-theft of the automobiles such as commercial car is controlled, and improves the safety of vehicle.
Label declaration in Fig. 2: 1 anti-theft key (built-in radio transmitters), 2 ignition locks, 3 anti-theft key receiving coils, 4 power assembly controller (PCU, Powertrain Control Unit), 5 engine controllers (ECU, Electronic Control Unit), 6 starter motors, 7 injections system, 8 antitheft identification cards, 9 antitheft identification receiving wire and 10 brake control mechanisms.
Between power assembly controller PCU 4 and engine controller ECU 5, can adopt CAN bus to realize the mutual of control information and order.In Fig. 2, solid line represents by wired connection, and dotted line adopts transmission over radio.Anti-theft key 1 receiving coil 3 can be fixedly mounted in ignition lock 2, realizes electron pairing with anti-theft key 1.Power assembly controller PCU 4 has the functions such as control engine moment of torsion and rotating speed and brake control mechanism On/Off.
Described in the embodiment of the present invention, automobile anti-theft method comprises following antitheft process:
Antitheft process 1:
Anti-theft key receiving coil 3 specifically can be fixedly mounted in ignition lock 2, realizes electron pairing with anti-theft key 1.
At anti-theft key 1, insert in ignition lock 2, in anti-theft key 1, electronic chip can produce stochastic sequence code, and calculate result sequence code by decipherment algorithm and secret key, by anti-theft key receiving coil, 3 engine controller ECU 5 receive these two sequence codes, and carry out release calculating by decipherment algorithm.When release result of calculation, confirm when correct, represent anti-theft key 1 release success.Here, anti-theft key 1 production stochastic sequence code rule requires to mate with decipherment algorithm and secret key in engine controller ECU 5.
Antitheft process 2:
Antitheft identification card 8 comprises car owner's identity ID and car owner's identity decrypted sequences code, specifically can pass through wireless radio frequency transmission technology, by antitheft identification receiving wire 9 reception information, and is transferred in power assembly controller PCU 4.PCU 4 receives the computing of decoding after above-mentioned information, after successfully decoded, carries out release on the one hand by opening 10 pairs of brake system of brake control mechanism; Specifically can send successfully decoded order to engine controller ECU 5 by CAN bus on the other hand.
Here, antitheft identification is had to three requirements:
1, the data transmission of antitheft identification card 8 and antitheft identification receiving wire 9 is transmitted by less radio-frequency, and data transmission is encrypted, and guarantees the safety of data transmission.
2, car owner's identity ID has uniqueness, and corresponding with car owner's identity decrypted sequences code.
3, in car owner's identity decrypted sequences code and power assembly controller PCU 4, decipherment algorithm and secret key require electron pairing, and have confidentiality.
Antitheft process 3:
Engine controller ECU 5 is in anti-theft key 1 release success and receive after the order of PCU4 successful decryption simultaneously, and the antitheft release success of confirmation system, can carry out automobile starting program.
The startup of automotive system is specifically as follows after receiving engine ignition order, carries out and starts (motor) and carry out oil spout control command, starts successfully.
If engine control ECU 5 anti-theft key releases are unsuccessful, or do not receive PCU success decryption command, driving engine cannot carry out start-up operation; Engine ECU successfully obtains after startup command, and 4 pairs of brake control mechanisms of dynamic assembly PCU carry out, after release, completing security function simultaneously, and system can start, thereby realize, the double anti-theft of the automobiles such as commercial car is controlled.
Referring to Fig. 3, this figure is automotive theft proof system constructional drawing described in the embodiment of the present invention.
Automotive theft proof system described in the embodiment of the present invention, described system comprises: engine controller ECU 5, anti-theft key 1, power assembly controller PCU 4.
Engine controller ECU 5 further comprises engine controller memory cell 51, engine controller receiving element 52 and engine controller decryption unit 53.
In described engine controller memory cell 51 pre-stored have with anti-theft key 1 produce decipherment algorithm and the secret key that stochastic sequence code rule matches.
Described anti-theft key 1 inserts in ignition lock, and described anti-theft key 1 produces stochastic sequence code according to described generation stochastic sequence code rule, and calculates result sequence code by decipherment algorithm and secret key.
Engine controller receiving element 52 receives described stochastic sequence code and result sequence code, and engine controller decryption unit 53 is carried out release calculating according to described decipherment algorithm; When release result of calculation is confirmed when correct, anti-theft key release success.
Power assembly controller PCU 4 further comprises power assembly controller memory cell 41, power assembly controller receiving element 42 and power assembly controller decryption unit 43.
In described power assembly controller PCU, memory cell 41 is pre-stored decipherment algorithm and a secret key matching with car owner's identity ID and car owner's identity decrypted sequences code.
Car owner's identity ID and car owner's identity decrypted sequences code after the encryption that the antitheft identification card 8 of described power assembly controller receiving element 42 reception sends;
Power assembly controller decryption unit 43 computing of decoding; After successfully decoded, brake control mechanism 10 is carried out to release; Send successfully decoded order to engine controller ECU 5.
Described power assembly controller receiving element 42 is specifically as follows antitheft identification receiving wire (label 9 in Fig. 2).
Automotive theft proof system described in the embodiment of the present invention, because anti-theft key inserts in ignition lock, anti-theft key produces stochastic sequence code according to stochastic sequence code create-rule, and calculates according to above-mentioned decipherment algorithm and secret key, and anti-theft key sends stochastic sequence code together; Engine controller ECU receiving element 52 receives described stochastic sequence code and result sequence code, and engine controller ECU decryption unit 53 is carried out release calculating according to described decipherment algorithm; When release result of calculation is confirmed when correct, anti-theft key release success; Realize like this and weigh antitheft with regard to one of automobile.And car owner's identity ID and car owner's identity decrypted sequences code after the encryption of the antitheft identification card transmission of power assembly controller PCU receiving element 42 reception, the computing of decoding; After power assembly controller PCU decryption unit 43 successfully decodeds, brake system is carried out to release; Send successfully decoded order to engine controller ECU; So just realized the double anti-theft of automobile.
Automotive theft proof system described in the embodiment of the present invention, can realize the double anti-theft of the automobiles such as commercial car is controlled, and improves the safety of vehicle.
The above is only the preferred implementation of automobile anti-theft method of the present invention and system; should be understood that; for those skilled in the art; under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. an automobile anti-theft method, is characterized in that, described method comprises:
In engine controller ECU, set in advance with anti-theft key and produce decipherment algorithm and the secret key that the stochastic sequence code create-rule of stochastic sequence code matches;
Anti-theft key inserts in ignition lock, and anti-theft key produces stochastic sequence code according to stochastic sequence code create-rule, and calculates according to above-mentioned decipherment algorithm and secret key, and anti-theft key sends stochastic sequence code together with result sequence code;
Engine controller ECU receives described stochastic sequence code and result sequence code, according to described decipherment algorithm, carries out release calculating; When release result of calculation is confirmed when correct, anti-theft key release success;
In power assembly controller PCU, set in advance the decipherment algorithm and the secret key that match with car owner's identity ID and car owner's identity decrypted sequences code;
Power assembly controller PCU receives car owner's identity ID and the car owner's identity decrypted sequences code after the encryption that antitheft identification card sends, the computing of decoding;
After successfully decoded, brake system is carried out to release; Send successfully decoded order to engine controller ECU;
When anti-theft key release is successful and described power assembly controller PCU carries out after release described brake system, start automobile.
2. automobile anti-theft method according to claim 1, is characterized in that, described power assembly controller PCU receives car owner's identity ID and the car owner's identity decrypted sequences code after the encryption that antitheft identification card sends by antitheft identification receiving wire.
3. automobile anti-theft method according to claim 2, is characterized in that, between described antitheft identification receiving wire and antitheft identification card, by less radio-frequency, transmits.
4. automobile anti-theft method according to claim 1, is characterized in that, described car owner's identity ID has uniqueness, and described car owner's identity ID is corresponding with car owner's identity decrypted sequences code.
5. automobile anti-theft method according to claim 1, is characterized in that, described car owner's identity decrypted sequences code is specially deciphering sequence string.
6. automobile anti-theft method according to claim 1, is characterized in that, after described successfully decoded, by opening brake control mechanism, brake system is carried out to release; By CAN bus, send successfully decoded order to engine controller ECU.
7. automobile anti-theft method according to claim 1, is characterized in that, after described successfully decoded, brake system is carried out to release; Send after the step of successfully decoded order to engine controller ECU, comprising:
Carry out automobile starting program.
8. automobile anti-theft method according to claim 7, is characterized in that, described automobile starting program comprises:
Receive engine ignition instruction, starter motor, carries out oil spout control command.
9. an automotive theft proof system, is characterized in that, described system comprises: engine controller ECU, anti-theft key, power assembly controller PCU;
Engine controller ECU further comprises engine controller memory cell, engine controller receiving element and engine controller decryption unit;
In described engine controller memory cell pre-stored have with anti-theft key produce decipherment algorithm and the secret key that the stochastic sequence code create-rule of stochastic sequence code matches;
Described anti-theft key inserts in ignition lock, and anti-theft key produces stochastic sequence code according to stochastic sequence code create-rule, and calculates according to above-mentioned decipherment algorithm and secret key, and anti-theft key sends stochastic sequence code together with result sequence code;
Engine controller receiving element receives described stochastic sequence code and result sequence code, and engine controller decryption unit is carried out release calculating according to described decipherment algorithm; When release result of calculation is confirmed when correct, anti-theft key release success;
Power assembly controller PCU further comprises power assembly controller memory cell, power assembly controller receiving element and power assembly controller decryption unit;
Pre-stored in described power assembly controller memory cell have decipherment algorithm and a secret key matching with car owner's identity ID and car owner's identity decrypted sequences code;
Described power assembly controller receiving element receives car owner's identity ID and the car owner's identity decrypted sequences code after the encryption that antitheft identification card sends;
The computing of decoding of power assembly controller decryption unit; After successfully decoded, brake system is carried out to release; Send successfully decoded order to engine controller ECU.
10. automotive theft proof system according to claim 9, is characterized in that, described power assembly controller receiving element is specially antitheft identification receiving wire.
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| CN102514571B (en) * | 2012-01-05 | 2015-02-04 | 潍柴动力股份有限公司 | Driver driving economy evaluation system and method |
| CN102700368B (en) * | 2012-06-12 | 2014-12-03 | 江苏大学 | Tire pressure monitoring method and system based on wireless sensor |
| CN104118392B (en) * | 2013-04-28 | 2016-06-08 | 广州汽车集团股份有限公司 | A kind of engine anti-theft authentication method of engine theftproof system and device |
| CN103465866A (en) * | 2013-09-25 | 2013-12-25 | 北京汽车股份有限公司 | Vehicle starting control method, vehicle starting control device and vehicle |
| CN104828014A (en) | 2015-05-28 | 2015-08-12 | 京东方科技集团股份有限公司 | Automobile safety driving method, device and system |
| CN106696900B (en) * | 2016-12-23 | 2019-10-15 | 上海汽车集团股份有限公司 | The mixed dynamic anti-stealing method for vehicles of the plug-in of gearbox encryption |
| CN106627479B (en) * | 2016-12-23 | 2019-04-23 | 上海汽车集团股份有限公司 | The mixed dynamic anti-stealing method for vehicles of the plug-in of three controller cross-certification |
| US10628643B2 (en) | 2017-09-28 | 2020-04-21 | Griffen Security Llc | Vehicle immobilizer |
| CN107933499B (en) * | 2017-11-15 | 2020-11-06 | 上海科世达-华阳汽车电器有限公司 | PEPS system-based key ID verification method and related device |
| CN111080852B (en) * | 2019-12-17 | 2022-03-11 | 重庆邮电大学 | Method for setting automobile door lock member |
| CN112693425A (en) * | 2021-01-15 | 2021-04-23 | 江西江铃集团新能源汽车有限公司 | Vehicle anti-theft method, device, storage medium, vehicle control unit and vehicle |
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| EP0659963A1 (en) * | 1993-12-20 | 1995-06-28 | Siemens Aktiengesellschaft | Electronic immobilizing device for a motor vehicle |
| CN2536450Y (en) * | 2002-05-31 | 2003-02-19 | 唐益茹 | Anti-steal devices for motor vehicle |
| CN1877645A (en) * | 2006-07-05 | 2006-12-13 | 孙宗炎 | Induction type automobile safety lock |
| TW200812847A (en) * | 2006-09-15 | 2008-03-16 | Yamaha Motor Co Ltd | Induction-type lock for motorcycle |
| GB2447660A (en) * | 2007-03-20 | 2008-09-24 | Shih-Hsiung Li | Control system integrated with sensing and audio/image identification functions which control a door lock and/or an engine ignition |
| CN201446937U (en) * | 2009-06-12 | 2010-05-05 | 马朝义 | Automobile electronic anti-theft device |
| CN201484356U (en) * | 2009-09-04 | 2010-05-26 | 科博达技术有限公司 | Automobile remote control anti-theft key |
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