Embodiment
Embodiments of the invention are described with reference to the accompanying drawings.In the following description, elaborate many details so as to
Person of ordinary skill in the field is set to be appreciated more fully and realize the present invention.But to those of skill in the art
Member is it is evident that the present invention's realizes some that can not have in these details.It is however, it should be understood that of the invention
It is not limited to introduced specific embodiment.Conversely, it may be considered that with any combination of features described below and key element come
Implement the present invention, regardless of whether they are related to different embodiments.Therefore, aspect, feature, embodiment and advantage below is only
It is illustrative, and key element or the restriction of claim are not to be taken as, unless clearly proposing in the claims.
Referring now to Fig. 1, it illustrates technical scheme can apply to vehicle anti-theft therein and activation system
Structured flowchart.
As shown in fig. 1, the vehicle anti-theft and activation system include alarm 101, ECU 102 and car key transponder
103。
The alarm 101 is arranged in vehicle, and passes through the car of the CAN of vehicle, K lines or any other type
Bus is connected with the ECU 102, so as to be communicated with ECU, to enter between alarm 101 and ECU 102
The antitheft certification of row.
The alarm 101 can include a transceiver module (transceiver), and the transceiver module can pass through wired or nothing
Line mode communicates with the car key transponder 103, so as to obtain the unique knowledge stored in the car key transponder 103
Other code, or carry out more complicated antitheft certification between the alarm 101 and car key transponder 103 or communicated
Journey.
In certain embodiments, the transceiver module is RFID reader, and the RFID reader generally carries antenna.Work as car
The ignition switch of key insertion vehicle or when car key is close to the RFID reader, the RFID reader is launched
Electromagnetic wave activate the car key transponder 103, the car key transponder 103 is sent it to RFID reader and deposit
The exclusive identification code of storage.So, the alarm 101 can utilize the unique identifier that the RFID reader is received
Antitheft certification is carried out with the ECU 102.
The alarm 101 can be existing any kind of alarm 101, or can also be newly developed antitheft
Device.
The car key transponder 103 is included in car key, and can be entered with the transceiver module in alarm 101
Row wired or wireless communication.In certain embodiments, the car key transponder 103 is RFID label tag, and can activated
The RFID reader into alarm 101 sends the unique identifier of its storage afterwards.In other embodiments, the car key
Transponder 103 can also be other more complicated equipment, such as it can include the processing unit of oneself, battery and transmitting-receiving list
Member, so as to carry out more complicated communication and verification process between alarm 101.
The car key transponder 103 can be existing any kind of car key transponder, or can also
It is car key transponder newly developed.
As shown in fig. 1, the ECU 102 can be with the actuator such as cranking-motor relay, oil pump, fuel injector and igniter
Be connected (such as by rigid line connect etc.), and by being sent to control instruction, control the cranking-motor relay, oil pump,
The operation of the actuator such as fuel injector and igniter, so as to control the correct startup and operating of engine.For example, the ECU 102
The opening and closing of the cranking-motor relay can be controlled by sending corresponding control instruction, so as to start and stopping is started
Machine;The opening and closing of control oil pump, so as to engine oil and fuel cut-off;Control fuel injector oil spout into engine
Opportunity and oil mass;And sequential of control igniter fire etc..The ECU 102 can also be with engine speed, temperature etc.
Sensor is connected, to receive the measurement data on engine operating status from each sensor, so as to according to the measurement
Data generate appropriate control instruction.
In addition, the ECU 102 can perform antitheft verification process with the alarm 101, and in antitheft certification success
When control vehicle motor to start, and in antitheft authentification failure, start vehicle motor.The antitheft verification process can
To be any one of a variety of verification process.For example, it is stored with generally in the ECU 102 and in the alarm 101
Identical encryption/decryption algorithm, and it is stored with identical key.The key stored in the alarm 101 can be from described
The unique identifier that car key transponder 103 obtains, or can also be the numerical value being calculated by the unique identifier.
In verification process, the ECU 102 can generate a random number, the random number be all in each verification process it is different,
And send the random number to the alarm 101.The alarm 101 can use its encryption/decryption algorithm, with the key
With the random number that is received as parameter, a response is produced, and the response is returned to the ECU 102.Then, the ECU
102 can use its encryption/decryption algorithm, using the key of its storage and caused random number as parameter, produce one and are expected
Response, and by the intended response compared with it is received from the response of the alarm 101.If both are equal, recognize
Demonstrate,prove successfully;If both unequal, authentification failures.Certainly, above-mentioned specific verification process is merely illustrative, rather than to the present invention
Limitation.
In an embodiment of the present invention, the ECU 102 can be before the antitheft verification process be completed, such as is being examined
Measure when ignition switch opens (such as insert ignition switch by car key and rotate to ON shelves) or detect vehicle key
Spoon close to vehicle when, in advance pretrigger vehicle motor (such as by control the cranking-motor relay, oil pump, fuel injector and
One or more of igniter), and in the antitheft certification success, continue to start vehicle motor;And described antitheft
During authentification failure, stop starting vehicle motor.So, the security requirement of antitheft certification, and effectively contracting can both be met
The short startup time of engine.
In further embodiment of the present invention, the ECU 102 can be opened detecting ignition switch or detection
During to car key close to vehicle, the authentication result of last time is inquired about first.If last authentication result is successfully, to shift to an earlier date
Pretrigger vehicle motor;Otherwise pretrigger vehicle motor is not shifted to an earlier date.In such embodiments, the ECU 101 can be with
After each antitheft verification process terminates by the result storage of certification in its memory, so as in antitheft verification process next time
Use.
The ECU 102 can generally be realized by way of hardware is combined with software.Specifically, ECU 102 is for example
Can be by microprocessor or microcontroller and its memory hardware of association, and storage is in memory and can be by described
Software instruction that microprocessor or microcontroller are loaded and performed is realized.When the software instruction is by the microprocessor or micro-
It is controllable or configure the microprocessor or microcontroller and perform its corresponding operating when controller is loaded and performed.
Referring now to Fig. 2, it illustrates it illustrates the vehicle with anti-theft feature according to some embodiments of the present invention
The flow chart of startup method.This method can perform in above-mentioned vehicle anti-theft and activation system, specifically, can be by described
ECU 102 is performed.For example, this method can be embodied in the software instruction stored in ECU 102 memory, so, work as ECU
102 load and when performing the software instruction, can perform this method.
As shown in Figure 2, should may include steps of with the vehicle starting method of anti-theft feature:
In step 201, detect that ignition switch is opened or car key transponder approaches.As it is known in the art, work as
When car key is inserted into ignition switch and rotates to ON shelves, ignition switch will produce ignition switch and open (IGK ON) signal,
And send the signal in CAN, ECU 102 can detect ignition switch by detecting the signal in CAN
Open.In addition, for intelligent vehicle key, it is antitheft when it reaches within preset distance close to vehicle or alarm 101
Device 101 will detect the close of the intelligent vehicle key, so as to notify the close of the car key transponders of ECU 102.
In step 202, start engine at least in part.ECU 102 can be by starting the cranking-motor relay, oil
One or more of pump, fuel injector, igniter, to start engine at least in part.
In step 203, antitheft certification is carried out.ECU 102 can perform the antitheft certification above illustrated with alarm 101
Process.
In step 204, judge whether antitheft certification success.In response to being judged as YES, step 205 is performed;In response to judging
It is no, performs step 206.
In step 205, continue to start engine.That is, in response to antitheft certification success, ECU102 can keep starting
In the case that machine is in starting state, or part starts engine in step 202, engine is set to start completely.So,
Antitheft verification process need not be waited to terminate just to start engine, so as to be effectively shortened the startup time of engine.
In step 206, engine is closed.That is, in response to antitheft authentification failure, engine is closed, so as to keep
Tamper-security.
In certain embodiments, methods described is performed by the ECU 102, and the startup engine bag at least in part
Include at least one in the following:Start engine fuel transfer pump;Start engine nozzle;Start engine ignition;With
And start engine starter.
In certain embodiments, methods described is performed by the ECU 102, and the antitheft certification of progress includes:
Generate and send random number to anti-theft device for vehicle;
Receive the sound generated using AES for the random number and the key of storage from anti-theft device for vehicle
Should;
The expected response of key generation stored using identical AES for the random number and identical;
Compare the response of the reception and the expected response;
If both are equal, certification success is judged;And
If both are unequal, authentification failure is judged.
Referring now to Fig. 3, it illustrates the vehicle launch side with anti-theft feature of other embodiments according to the present invention
The flow chart of method.Equally, this method can perform in above-mentioned vehicle anti-theft and activation system, specifically, can be by the ECU
102 perform.For example, this method can be embodied in the software instruction stored in ECU 102 memory, so, when ECU 102 adds
When carrying and performing the software instruction, this method can be performed.In figure 3, represented with identical label in Fig. 2 same or similar
The step of.
As shown in Figure 3, the startup method of the vehicle with anti-theft feature comprises the following steps:
In step 201, detect that ignition switch is opened or car key transponder approaches.
In step 301, the last antitheft authentication result of inquiry.The last time antitheft authentication result for example can be upper
Once it is stored at the end of antitheft verification process in ECU 102 memory.
In step 302, judge whether last antitheft certification succeeds.In response to last antitheft certification success, then perform
Step 202, i.e., engine is started at least in part;In response to last antitheft authentification failure, then step 203 is performed, i.e., is not opened
Dynamic engine, but carry out new antitheft certification.So, by referring to last antitheft authentication result, error starting hair is reduced
The situation of motivation occurs, and further increases tamper-security.
In step 202, start engine at least in part.
In step 203, antitheft certification is carried out;
In step 204, judge whether antitheft certification succeeds.In response to antitheft certification success, step 205 is performed;In response to
Judge antitheft authentification failure, perform step 206.
In step 205, continue to start engine.That is, in response to antitheft certification success, ECU102 can keep starting
In the case that machine is in starting state, or part starts engine in step 202, engine is set to start completely.So,
Antitheft verification process need not be waited to terminate just to start engine, so as to be effectively shortened the startup time of engine.
In step 206, engine is closed.That is, in response to antitheft authentification failure, engine is closed, so as to keep
Tamper-security.
In certain embodiments, methods described is performed by engine control module ECU, and described start at least in part sends out
Motivation includes at least one in the following:
Start engine fuel transfer pump;
Start engine nozzle;
Start engine ignition;And
Start engine starter.
In certain embodiments, methods described is performed by the ECU 102, and the antitheft certification of progress includes:
Generate and send random number to anti-theft device for vehicle;
Receive the sound generated using AES for the random number and the key of storage from anti-theft device for vehicle
Should;
The expected response of key generation stored using identical AES for the random number and identical;
Compare the response of the reception and the expected response;
If both are equal, certification success is judged;And
If both are unequal, authentification failure is judged.
In certain embodiments, methods described is further comprising the steps of:
In step 304, the result of the storage antitheft certification.
The vehicle starting method according to an embodiment of the invention with anti-theft feature is described above by reference to accompanying drawing, should be referred to
Go out, above description and diagram are merely illustrative, rather than limitation of the present invention.In other embodiments of the invention, institute
The method of stating can have more, less or different step, and order between each step, include, the relation such as function can be with institute
The thin difference stated and illustrated.For example, the step 202 and step 203 can also perform parallel, or partly parallel execution,
Such as can start to start engine at least in part when proceeding by antitheft certification, or in the process for carrying out antitheft certification
Middle beginning starts engine at least in part.
In another aspect of the present invention, additionally provide and anti-theft feature is carried according to one kind of some embodiments of the present invention
Vehicle starting device.The vehicle starting device can be realized by above-mentioned ECU 102.
Some embodiments according to the present invention, the vehicle starting device are configured as:
In response to detecting that ignition switch is opened, start engine at least in part;
Carry out antitheft certification;
In response to antitheft certification success, continue to start engine;And
In response to antitheft authentification failure, engine is closed.
In certain embodiments, the vehicle starting device includes the ECU 102, and described start at least in part sends out
Motivation includes at least a portion of procedure below:
Start engine fuel transfer pump;
Start engine nozzle;
Start engine ignition;And
Start engine starter.
In certain embodiments, the vehicle starting device includes the ECU 102, and the antitheft certification bag of progress
Include:
Generate and send random number to anti-theft device for vehicle;
Receive the sound generated using AES for the random number and the key of storage from anti-theft device for vehicle
Should;
The expected response of key generation stored using identical AES for the random number and identical;
Compare the response of the reception and the expected response;
If both are equal, certification success is judged;And
If both are unequal, authentification failure is judged.
In another aspect of the invention, additionally provide and antitheft work(is carried according to one kind of other embodiments of the present invention
The vehicle starting device of energy.Similarly, the vehicle starting device can be realized by above-mentioned ECU102.
Other embodiments according to the present invention, a kind of vehicle starting device with anti-theft feature are configured
For:
In response to detecting that ignition switch is opened, the last antitheft authentication result of inquiry;
If last antitheft authentication result is successfully, to start engine at least in part;
If last antitheft authentication result is unsuccessful, do not start engine;
Carry out antitheft certification;
In response to antitheft certification success, continue to start engine;And
In response to antitheft authentification failure, engine is closed.
In certain embodiments, the vehicle starting device includes the ECU 102, and described start at least in part sends out
Motivation includes at least a portion of procedure below:
Start engine fuel transfer pump;
Start engine nozzle;
Start engine ignition;And
Start engine starter.
In certain embodiments, the vehicle starting device includes the ECU 102, and the antitheft certification bag of progress
Include:
Generate and send random number to anti-theft device for vehicle;
Receive the sound generated using AES for the random number and the key of storage from anti-theft device for vehicle
Should;
The expected response of key generation stored using identical AES for the random number and identical;
Compare the response of the reception and the expected response;
If both are equal, certification success is judged;And
If both are unequal, authentification failure is judged.
In certain embodiments, the vehicle starting device is additionally configured to:Store the result of the antitheft certification.
The foregoing describe the vehicle starting device according to an embodiment of the invention with anti-theft feature, it is noted that
Above description is merely illustrative, rather than limitation of the present invention.In other embodiments of the invention, the vehicle starting device
There can be more or different modules, and can be configured as performing different operations.
Although describing embodiments of the invention above by reference to accompanying drawing, it will be appreciated by those skilled in the art that above description
It is merely illustrative, rather than limitation of the present invention.Various modification and variation can be carried out to embodiments of the invention, and still fallen within
Within the spirit and scope of the present invention, the scope of the present invention is only determined by appended claims.