JP2005022491A - Vehicle anti-theft device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicle anti-theft device capable of improving anti-theft performance as compared with the conventional immobilizer system. <P>SOLUTION: In the vehicle anti-theft device, an owner identifying means for identifying an identifying code sent from a transmitter, and a steering controlling means for controlling steering of a vehicle are connected so as to communicate with each other. When identifying that the identifying code sent from the transmitter is an identifying code registered in advance, the owner identifying means sends a communication code. When receiving the communication code and identifying as a communication code registered in advance, the steering controlling means starts steering control of the vehicle. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a vehicle antitheft device using an immobilizer, and more particularly to a vehicle antitheft device configured by combining steering control means with owner identification means.
[0002]
[Prior art]
In recent years, the number of vehicle thefts has been increasing, and strengthening anti-theft measures has become an issue. Anti-theft devices that are applied to conventional vehicle steering devices are those that lock the operation of the steering device with a mechanical lock mechanism called a handle lock when the ignition key is removed from the key cylinder. It is attached to.
[0003]
In addition, anti-theft devices that physically lock the handle of a vehicle from the outside, and anti-theft devices that lock the handle and the brake pedal at the same time are generally sold.
[0004]
In recent years, the mounting rate of an anti-theft device called an immobilizer has become widespread, mainly for expensive vehicles called luxury cars. This immobilizer transmits a recognition code for identifying this transmitter from a transmitter embedded in an ignition key or the like to the immobilizer unit of the vehicle, and the immobilizer unit that received this recognition code receives When it is recognized that it is a recognition code, for example, by sending a signal permitting fuel supply to an engine control unit that controls fuel supply to the engine, unauthorized engine start due to theft or the like is prevented. Is.
[0005]
As an example of such an immobilizer, Patent Document 1 discloses that a variable code incorporating a keyword from an immobilizer ECU (Electronic Control Unit) is transmitted to an engine ECU when the code transmitted from the recognition code transmitting means is a recognition code. An anti-theft device is disclosed that prohibits engine operation when the keyword is not decoded by the engine ECU.
[0006]
Patent Document 2 discloses an owner identification unit that outputs a predetermined rolling code only when the code received from the transponder is a correct code, and a storage unit that stores the rolling code in the engine control unit. An anti-theft device for a vehicle is disclosed in which the rolling code is stored in the storage unit, and the address at which the rolling code is stored is moved each time to increase the number of rewritable times.
[0007]
[Patent Document 1]
Japanese Patent No. 3099642 (Claim 1, FIG. 1)
[Patent Document 2]
Japanese Patent No. 3275660 (Claim 1, FIG. 2)
[0008]
[Problems to be solved by the invention]
Although handle locks using conventional key cylinders are mounted on almost all vehicles, there are many examples of vehicle theft due to physical destruction, and the actual situation is that the anti-theft and anti-theft effects have been lost. .
[0009]
Also, commercially available retrofit handle locks are often conspicuous from the outside for the purpose of deterring theft, and must be worn every time they leave the vehicle, so they are not aesthetically pleasing, and the effort and time to wear them. There was a drawback of requiring.
[0010]
Moreover, in the vehicle antitheft device disclosed in Patent Document 1 and Patent Document 2, spoofing is prevented by changing a communication code communicated between the antitheft control unit and the engine control unit, thereby preventing theft. Focus on prevention. However, such a vehicle antitheft device composed of an antitheft control unit and an engine control unit is capable of exchanging the engine control unit in a relatively short time. Therefore, an engine control unit that does not have an immobilizer function recently. By creating and exchanging the vehicle, there is a vehicle theft that starts the engine, and the anti-theft effect may be lost.
[0011]
Therefore, the subject of this invention is providing the vehicle antitheft device which can improve anti-theft property compared with the conventional immobilizer system.
[0012]
[Means for Solving the Problems]
A vehicle antitheft device according to a first aspect of the present invention made to solve the above-described problem includes an owner identifying means for identifying a recognition code transmitted from a transmitter, and a steering control means for controlling steering of the vehicle. An anti-theft device for vehicles connected so that they can communicate with each other, and the owner identification means transmits a communication code when the identification code transmitted from the transmitter is identified as a pre-registered recognition code. The steering control means receives the communication code and starts the steering control of the vehicle when it is identified as the communication code registered in advance.
[0013]
According to the first invention, since the vehicle can be steered only when the owner identification means can recognize the recognition code, the vehicle can be prevented from being stolen. Further, since the steering control means is difficult to drive at a control level that allows driving, it is difficult to create a replacement unit in theft by replacement of the steering control means, and the conventional owner recognition means and internal combustion engine control means are used. Compared with the conventional vehicle antitheft device, the anti-theft performance can be improved.
[0014]
The anti-theft device according to the second aspect of the present invention is the anti-theft of a vehicle in which an owner identifying means for identifying an identification code transmitted from a transmitter and a steering control means for controlling the steering of the vehicle are connected so as to communicate with each other. When the identification code transmitted from the transmitter is identified as a previously registered recognition code, the owner identification means transmits a first communication code, and the steering control means When the communication code is received and identified as the first communication code registered in advance, the second communication code is transmitted, and the owner identification means receives the second code and receives the second code registered in advance. When the two communication codes are identified, a steering start code is transmitted, and the steering control means starts the steering control of the vehicle when the steering start code is received.
[0015]
According to the second invention, in accordance with the effect of the first invention, the vehicle can be steered when the owner identifying means and the steering control means authenticate each other, so the owner identifying means has been replaced. Even in this case, theft of the vehicle can be prevented.
[0016]
An anti-theft device according to a third aspect of the invention is an owner identification means for identifying a recognition code transmitted from a transmitter, a steering control means for controlling steering of a vehicle, and an internal combustion engine for controlling the operation of the internal combustion engine of the vehicle. The anti-theft device for vehicles connected to the control means so that they can communicate with each other, the owner identification means, when identifying the recognition code transmitted from the transmitter as a recognition code registered in advance, When the first communication code is transmitted and the internal combustion engine control means receives the first communication code and identifies it as the first communication code registered in advance, the internal combustion engine control means transmits the second communication code, and the steering control means When the second communication code is received and identified as the second communication code registered in advance, the internal combustion engine start code is transmitted and the steering control of the vehicle is started. Internal combustion engine starting core When receiving, it is characterized in that to start the control of the internal combustion engine.
[0017]
According to the third invention, in accordance with the effect of the second invention, by including the internal combustion engine control means, it is possible to further improve the anti-theft against the vehicle theft by replacing the unit.
[0018]
An anti-theft device according to a fourth aspect of the present invention is an owner identifying means for identifying a recognition code transmitted from a transmitter, a steering control means for controlling steering of a vehicle, and an internal combustion engine for controlling operation of the internal combustion engine of the vehicle. The anti-theft device for vehicles connected to the control means so that they can communicate with each other, the owner identification means, when identifying the recognition code transmitted from the transmitter as a recognition code registered in advance, When the first communication code is transmitted and the steering control means receives the first communication code and identifies the first communication code as being registered in advance, the steering control means transmits the second communication code, and the internal combustion engine control means Receives the second communication code and identifies the second communication code registered in advance, transmits a steering start code and starts control of the internal combustion engine, and the steering control means I received the code The case, is characterized by initiating the steering control of the vehicle.
[0019]
According to the fourth invention, the same effect as that of the third invention is achieved, and the internal combustion engine control means is included in accordance with the effect of the second invention. Theft resistance can be improved.
[0020]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the present embodiment, an example in which an antitheft device is formed by combining a steering control unit of a steer-by-wire mechanism, an internal combustion engine control unit that electrically controls operation of the internal combustion engine, and an owner identification unit will be described. In the drawings described below, the same reference numerals represent the same parts / elements.
[0021]
First, the steer-by-wire mechanism used in this embodiment will be described. For example, FIG. 1 is a schematic diagram of a steer-by-wire mechanism in the present embodiment. The operation of the steer-by-wire mechanism in the present embodiment will be described with reference to FIG. The steer-by-wire mechanism shown in FIG. 1 is, for example, a mechanism for steering the front wheels FW-1 and FW-2 of the vehicle. When the driver of the vehicle performs a turning operation of the steering handle 2, the steering handle The rotation angle 2 is detected by the steering rotation angle sensor 4 via the steering rotation shaft 3. The information on the detected rotation angle is transmitted to the steering control unit 1, and is calculated by the steering control unit 1 together with the vehicle speed information transmitted from the vehicle speed sensor 6, and output as a control signal for the steering motor 7. The This steering control means 1 is mainly composed of a microcomputer comprising a CPU (Central Processing Unit), ROM (Read Only Memory), RAM (Random Access Memory), etc. The steering control means 1 of the present embodiment is particularly It is connected to other control means in the vehicle such as an owner identification means and an internal combustion engine control means, which will be described later, for example, by an in-vehicle LAN (Local Area Network) 11 and can exchange information with each other. it can.
[0022]
The rotation of the steering motor 7 that has received the control signal from the steering control means 1 is converted into a linear motion of the rack shaft 10 via the ball screw mechanism 9, and is transferred to the front wheels FW-1 and FW-2 by a tie rod (not shown). The vehicle is steered by giving a steering angle. At this time, the position of the rack shaft 10 is detected by a rack position sensor 8 as a steering angle sensor and fed back to the steering control means 1. Further, according to the vehicle speed information transmitted from the vehicle speed sensor 6, the steering control means 1 transmits a control signal to the reaction force motor 5 and transmits the reaction force to the steering handle 2 via the turning shaft 3. To do. In the vehicle having the steer-by-wire mechanism having such a configuration, the steering rotation shaft 3 and the rack shaft 10 are not mechanically connected. The person cannot drive the vehicle.
[0023]
In this embodiment, the steering control means 1 of the steer-by-wire mechanism shown in FIG. 1 is used as the steering control means 1. However, even the steering control means of the power steering mechanism is theft according to the present invention. It can be applied to the prevention system. When there is no control signal from the steering control means of the power steering mechanism, power assist to the steering wheel is not performed, so driving is particularly troublesome if the vehicle is heavy or equipped with wide tires. Will come.
[0024]
Next, the immobilizer mechanism used in this embodiment will be described. For example, FIG. 2 is a schematic diagram of an immobilizer mechanism used in the present embodiment. The operation of the immobilizer mechanism will be described with reference to FIG. A transmitter 19 holding a recognition code for identifying the ignition key 18 is built in the grip portion of the ignition key 18. For example, when the internal combustion engine is started, this recognition code is transmitted, and the owner identification means 12 The reception function 13 reads this recognition code via the antenna. If the received recognition code matches the recognition code registered in the information holding function 16 in advance, the communication code stored in advance in the information holding function 16 from the communication function 14 via the in-vehicle LAN 11. Is transmitted to a specific control means in the vehicle. The communication code is a code for authenticating the transmission source control unit by comparing the received communication code with the communication code held by the received control unit. Further, the recognition code held in the transmitter 19 of the ignition key 18 is an encrypted code having a sufficient encryption strength.
[0025]
This owner identification means 12 is a microcomputer comprising a CPU, ROM, RAM, etc. as a main component, and as shown in FIG. 2, a receiving function 13 for receiving a recognition code transmitted from a transmitter 19 And the communication function 14 for determining the received recognition code and transmitting the information code from the communication function 14 to the specific control means in the vehicle, and for exchanging information with other control means in the vehicle via the in-vehicle LAN 11 A function 14 and an information holding function 16 holding a recognition code and an information code are connected by an internal bus 17.
[0026]
In the present embodiment, the recognition code is transmitted by the ignition key 18 with the transmitter 19 built in, but can also be implemented with a card key with the transmitter 19 built in. In this case, when the driver carries the card key and gets on the vehicle, the owner identifying means 12 receives the recognition code transmitted from the card key, determines the card key, and the registered card key. If the owner identifying means 12 determines that the ignition key 12 is determined, the driver presses the start button of the internal combustion engine, for example, instead of inserting the ignition key 18 into the key cylinder and starting the internal combustion engine. By operation, the internal combustion engine can be started.
[0027]
An internal combustion engine control means (not shown) electrically controls the fuel injection amount, injection timing, ignition timing, etc. of the internal combustion engine of the vehicle. The internal combustion engine control means includes a microcomputer including a CPU, a ROM, a RAM, and the like as main components, and the internal combustion engine control means in the present embodiment is in particular connected with other control means in the vehicle via the in-vehicle LAN 11. It has a communication function for exchanging information.
[0028]
The steering control means 1, the owner identification means 12, and the internal combustion engine control means described above are each connected to the in-vehicle LAN 11, and can transmit and receive information to and from each other. In the present embodiment, each means is connected to be communicable with the in-vehicle LAN. However, each means can be connected by a serial connection that has been conventionally used.
[0029]
Next, an embodiment of the anti-theft device that combines the steering control means 1, the owner identification means 12 and the internal combustion engine control means described above will be described.
[0030]
[First embodiment]
The first embodiment is an example of an anti-theft device including an owner identification unit 12 and a steering control unit 1 as shown in FIG. The operation of the anti-theft device according to the present embodiment will be described with reference to the flowchart shown in FIG. 4 (refer to FIGS. 1, 2, and 3 (a) as appropriate).
[0031]
First, when starting the internal combustion engine, the ignition key 18 transmits a recognition code from the built-in transmitter 19 (step S100). Next, the anti-theft control means 12 compares the recognition code registered in advance with the information holding function 16 with the recognition code transmitted from the transmitter 19 to make a determination (step S101). As a result of step S101, if the two recognition codes are the same, the process proceeds to step S102, and if they are not the same, the process ends without being steerable. If the two recognition codes are the same in step S101, the owner identification unit 12 transmits a communication code to the steering control unit 1 via the in-vehicle LAN 11 (step S102). This communication code is a code registered in advance in the information holding function 16. Then, the steering control means 1 compares the received communication code with the communication code registered in the steering control means to make a determination (step S103). As a result of step S103, if the two communication codes are the same, the process proceeds to step S104. If they are not the same, the process ends without being steerable. When the two communication codes are the same, the steering control unit 1 starts steering control of the vehicle (step S104).
[0032]
According to the vehicle antitheft device in the present embodiment described above, the operation is restricted by the vehicle steering control means. Therefore, the operation cannot be performed only by starting the internal combustion engine, and high antitheft performance can be exhibited.
[0033]
In this embodiment, at the time of starting the internal combustion engine, the authentication in the steering control means shown in step S103 is performed. However, the communication code is transmitted from the owner identification means at every predetermined time, and the steering is performed. Authentication in the control means may be performed. Here, in the authentication every predetermined time, if the authentication cannot be performed, the steering becomes difficult and it is necessary to perform the steering control capable of stopping the vehicle. Further, as a communication code used for authentication in the steering control means, for example, a rolling code can be used, and a different communication code can be used for each authentication. Similarly, the authentication code transmitted from the transmitter 19 can also use a different authentication code for each authentication.
[0034]
[Second Embodiment]
As shown in FIG. 3 (b), the second embodiment comprises owner identification means 12 and steering control means 1. In addition to the function of the antitheft device shown in the first embodiment, owner identification This is an example of an anti-theft device in which the means 12 and the steering control means 1 communicate with each other via the in-vehicle LAN 11 to improve the anti-theft capability. The operation of the anti-theft device according to the present embodiment will be described with reference to the flowchart shown in FIG. 5 (refer to FIGS. 1, 2, and 3 (b) as appropriate). Here, the process from step S200 to step S203 is the same as the process from step S100 to step S103 of the first embodiment shown in FIG. However, the communication code transmitted in step S202 is the first communication code.
[0035]
Next, in step S203, when the two first communication codes are the same, the steering control unit 1 uses the in-vehicle LAN 11 to transmit the second communication code registered in the steering control unit 1 to the owner identification unit. 12 (step S204). Then, the owner identifying unit 12 compares the received second communication code with the second communication code registered in advance in the information holding function 16 and performs determination (step S205). As a result of step S205, if the two second communication codes are the same, the process proceeds to step S206. If they are not the same, the process ends without being steerable. If the two second communication codes are the same, the owner identifying unit 12 transmits a steering start code to the steering control unit 1 via the in-vehicle LAN 11 (step S206). And the steering control means 1 which received the steering start code starts steering control of a vehicle (step S207).
[0036]
According to the vehicle anti-theft device in the above-described embodiment, the vehicle can be steered only when the owner identification means and the steering control means can be mutually authenticated, so that one of the means is illegally replaced. Even in this case, it is possible to prevent the vehicle from being stolen.
[0037]
In this embodiment, when the internal combustion engine is started, mutual authentication is performed between the owner identification unit and the steering control unit in step S203 and step S205. This mutual authentication process is performed at predetermined intervals. It is also possible to repeat. In addition, a different communication code can be used for each authentication for the communication code used at this time.
[0038]
[Third embodiment]
As shown in FIG. 6 (a), the third embodiment comprises owner identification means 12, internal combustion engine control means 20, and steering control means 1. The internal combustion engine control means 20, steering control means 1, Is an example of an anti-theft device that communicates with each other via an in-vehicle LAN to improve the anti-theft capability. The operation of the anti-theft device of the present embodiment will be described with reference to the flowchart shown in FIG. 7 (refer to FIGS. 1, 2, and 6A as appropriate). Here, the process of step S300 and step S301 is the same as the process of step S100 and step S101 of the first embodiment shown in FIG.
[0039]
Next, when the two recognition codes are the same in step S301, the owner identification unit 12 transmits the first communication code to the internal combustion engine control unit 20 via the in-vehicle LAN 11 (step S302). Next, the internal combustion engine control means 20 compares the received first communication code with the first communication code registered in advance in the internal combustion engine control means 20 and makes a determination (step S303). As a result of step S303, if the two first communication codes are the same, the process proceeds to step S304. If they are not the same, the internal combustion engine is not started and the process is terminated without being steered.
[0040]
Next, in step S303, when the two first communication codes are the same, the internal combustion engine control means 20 performs steering control on the second communication code registered in the internal combustion engine control means 20 via the in-vehicle LAN 11. It transmits to the means 1 (step S304). Then, the steering control unit 1 makes a determination by comparing the received second communication code with the second communication code registered in advance in the steering control unit 1 (step S305). As a result of step S305, if the two second communication codes are the same, the process proceeds to step S306. If they are not the same, the internal combustion engine is not started and the process is terminated without being steered.
[0041]
Next, when the two second communication codes are the same, the steering control unit 1 transmits the third communication code to the internal combustion engine control unit 20 via the in-vehicle LAN 11 (step S306). Then, the internal combustion engine control means 20 compares the received third communication code with the third communication code registered in advance in the internal combustion engine control means 20 and makes a determination (step S307). As a result of step S307, if the two third communication codes are the same, the process proceeds to step S308. If they are not the same, the internal combustion engine is not started and the process is terminated without being steered. Next, when the two third communication codes are the same in step S307, the internal combustion engine control means 20 starts control of the internal combustion engine and transmits a steering start code (step S308). And the steering control means 1 which received the steering start code starts steering control of a vehicle (step S309).
[0042]
According to the vehicle antitheft device in the present embodiment described above, in addition to the effects of the vehicle antitheft device in the first embodiment and the second embodiment described above, the internal combustion engine control means is added to the constituent elements to further increase the illegality. High theft resistance against vehicle theft by exchanging various control means can be exhibited.
[0043]
[Fourth embodiment]
As shown in FIG. 6 (b), the fourth embodiment is an example of an antitheft device having a configuration in which the internal combustion engine control means 20 and the steering control means 1 are replaced with the configuration of the third embodiment. It is. The operation of the antitheft device of this embodiment will be described with reference to the flowchart shown in FIG. 8 (refer to FIGS. 1, 2, and 6 (b) as appropriate). Here, steps S400 and S401 are the same as steps S100 and S101 of the first embodiment shown in FIG.
[0044]
Next, when the two recognition codes are the same in step S401, the owner identification unit 12 transmits the first communication code to the steering control unit 1 via the in-vehicle LAN 11 (step S402). Next, the steering control unit 1 compares the received first communication code with the first communication code registered in advance in the steering control unit 1 to make a determination (step S403). As a result of step S403, if the two first communication codes are the same, the process proceeds to step S404. If they are not the same, the internal combustion engine is not started and the process is terminated without being steered.
[0045]
Next, in step S403, when the two first communication codes are the same, the steering control means 1 uses the in-vehicle LAN 11 to control the internal combustion engine via the second communication code registered in the steering control means 1 in advance. It transmits to the means 20 (step S404). Then, the internal combustion engine control means 20 compares the received second communication code with the second communication code registered in advance in the internal combustion engine control means 20 and makes a determination (step S405). As a result of step S405, if the two second communication codes are the same, the process proceeds to step S406. If they are not the same, the internal combustion engine does not start and ends without being steered.
[0046]
Next, when the two second communication codes are the same, the internal combustion engine control means 20 transmits the third communication code to the steering control means 1 via the in-vehicle LAN 11 (step S406). Then, the steering control unit 1 compares the received third communication code with the third communication code registered in advance in the steering control unit 1 to make a determination (step S407). As a result of step S407, if the two third communication codes are the same, the process proceeds to step S408. If they are not the same, the internal combustion engine is not started and the process is terminated without being steered. Next, when the two third communication codes are the same in step S407, the steering control means 1 starts steering control and transmits an internal combustion engine control start code (step S408). Then, the internal combustion engine control means 20 that has received the internal combustion engine control start code starts control of the internal combustion engine of the vehicle (step S409).
[0047]
According to the vehicle antitheft device in the present embodiment described above, the same effect as the vehicle antitheft device in the third embodiment can be obtained.
[0048]
The present invention is not limited to the above-described embodiment, and various modifications can be made within the scope of the present invention. For example, when an AT shift control means for controlling an automatic transmission is combined with the vehicle antitheft device according to the present invention, when an attempt is made to start the vehicle by an abnormal operation, the steering operation is prohibited and the AT shift control means However, by prohibiting the shift of the automatic transmission, a more robust vehicle antitheft device can be configured. In addition, when combined with lighting control means for controlling lights such as headlights, for example, a method of transmitting an abnormality to the outside by flashing lights of headlights, or in combination with horn relay control means, the horn is sounded intermittently. It is also possible to combine methods for transmitting abnormalities to the outside.
[0049]
【The invention's effect】
According to the present invention having the above-described configuration and operation, the following effects can be obtained. The vehicle anti-theft device according to the present invention has been added to the vehicle without adding a product such as “an anti-theft device using a retrofitted handle lock” or “the anti-theft device that fixes a handle and a brake”, etc. Theft can be prevented.
[0050]
In addition, the internal combustion engine control means applied to the conventional vehicle antitheft device can be stolen if the internal combustion engine is started and controlled so that a constant output is obtained, and an exchange unit used in the case of theft can be created. It is relatively easy. On the other hand, a steering control unit such as a steer-by-wire steering control means applied to the vehicle antitheft device according to the present invention is difficult to drive at a level where it can be driven, and an exchange unit used for theft can be created. Since it is difficult, the theft resistance can be greatly improved. In addition, with the improvement of anti-theft, a high anti-theft effect is also expected.
[0051]
Furthermore, in the present invention, since mutual authentication is performed between the means constituting the vehicle antitheft device, the vehicle cannot be steered even if one of the means is illegally changed. High anti-theft performance can be demonstrated.
[Brief description of the drawings]
FIG. 1 is a schematic view of a steer-by-wire mechanism.
FIG. 2 is a schematic view of an immobilizer mechanism.
FIG. 3A is a configuration diagram of an anti-theft device including an owner identification unit and a steering control unit. (B) It is a block diagram of an anti-theft device in which an owner identification unit and a steering control unit communicate with each other.
FIG. 4 is a flowchart for explaining the operation of an anti-theft device composed of owner identification means and steering control means.
FIG. 5 is a flowchart for explaining the operation of the anti-theft device in which owner identification means and steering control means communicate with each other.
FIG. 6A is a configuration diagram of an antitheft device comprising owner identification means, internal combustion engine control means, and steering control means. (B) It is a block diagram of the antitheft device which replaced the internal combustion engine control means and the steering control means.
FIG. 7 is a flowchart for explaining the operation of an anti-theft device composed of owner identification means, internal combustion engine control means, and steering control means.
FIG. 8 is a flowchart for explaining the operation of the antitheft device in which the internal combustion engine control means and the steering control means are interchanged.
[Explanation of symbols]
1 Steering control means
2 Steering handle
3 Steering rotation axis
4 Steering angle sensor
5 Reaction force motor
6 Vehicle speed sensor
7 Steering motor
8 Rack position sensor
9 Ball screw mechanism
10 Rack shaft
11 In-vehicle LAN
12 Owner identification means
18 Ignition key
19 Transmitter
20 Internal combustion engine control means
FW-1, FW-2 Vehicle front wheel

Claims (4)

A vehicle antitheft device in which an owner identification means for identifying a recognition code transmitted from a transmitter and a steering control means for controlling steering of a vehicle are connected so as to communicate with each other,
The owner identifying means is
When the recognition code transmitted from the transmitter is identified as a recognition code registered in advance, the communication code is transmitted.
The steering control means includes
When receiving the communication code and identifying the communication code registered in advance, the vehicle has a configuration for starting steering control of the vehicle;
A vehicle anti-theft device. A vehicle antitheft device in which an owner identification means for identifying a recognition code transmitted from a transmitter and a steering control means for controlling steering of a vehicle are connected so as to communicate with each other,
The owner identifying means is
When the recognition code transmitted from the transmitter is identified as a pre-registered recognition code, the first communication code is transmitted.
The steering control means includes
When receiving the first communication code and identifying the first communication code registered in advance, the second communication code is transmitted.
The owner identifying means is
When the second code is received and identified as a pre-registered second communication code, the steering start code is transmitted.
The steering control means includes
Having a configuration for starting steering control of the vehicle when the steering start code is received;
A vehicle anti-theft device. A vehicle in which owner identification means for identifying a recognition code transmitted from a transmitter, steering control means for controlling steering of the vehicle, and internal combustion engine control means for controlling the internal combustion engine of the vehicle are connected so as to be communicable with each other An anti-theft device,
The owner identifying means is
When the recognition code transmitted from the transmitter is identified as a pre-registered recognition code, the first communication code is transmitted.
The internal combustion engine control means includes
When receiving the first communication code and identifying the first communication code registered in advance, the second communication code is transmitted.
The steering control means includes
When the second communication code is received and identified as the second communication code registered in advance, the third communication code is transmitted.
The internal combustion engine control means includes
When the third communication code is received and identified as a pre-registered third communication code, the control of the internal combustion engine of the vehicle is started and a steering start code is transmitted.
The steering control means includes
Having a configuration for starting steering control of the vehicle when the steering start code is received;
A vehicle anti-theft device. The owner identification means for identifying the recognition code transmitted from the transmitter, the steering control means for controlling the steering of the vehicle, and the internal combustion engine control means for controlling the operation of the internal combustion engine of the vehicle are connected to be able to communicate with each other. A vehicle anti-theft device,
The owner identifying means is
When the recognition code transmitted from the transmitter is identified as a pre-registered recognition code, the first communication code is transmitted.
The steering control means includes
When receiving the first communication code and identifying the first communication code registered in advance, the second communication code is transmitted.
The internal combustion engine control means includes
When the second communication code is received and identified as the second communication code registered in advance, the third communication code is transmitted,
It has a configuration for transmitting a steering start code and starting control of the internal combustion engine,
The steering control means includes
When the third communication code is received and identified as a pre-registered third communication code, the vehicle starts steering control and transmits an internal combustion engine control start code,
The internal combustion engine control means includes
Having a configuration for starting control of the internal combustion engine of the vehicle when the internal combustion engine control start code is received;
A vehicle anti-theft device.

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