CN110979256B

CN110979256B - Electric carrier and anti-theft method thereof

Info

Publication number: CN110979256B
Application number: CN201911268272.9A
Authority: CN
Inventors: 施雅茹; 林昱玮; 胡胜雄
Original assignee: Inventec Appliances Shanghai Corp; Inventec Appliances Pudong Corp; Inventec Appliances Corp
Current assignee: Inventec Appliances Shanghai Corp; Inventec Appliances Pudong Corp; Inventec Appliances Corp
Priority date: 2019-12-11
Filing date: 2019-12-11
Publication date: 2023-03-10
Anticipated expiration: 2039-12-11
Also published as: CN110979256A; TWI753360B; TW202122290A

Abstract

The invention provides an electric carrier and an anti-theft method thereof, wherein the anti-theft method comprises the following steps: reading a private key of a carrier key; and decrypting the ciphertext by using the private key to serve as a basis for starting the motor.

Description

Electric carrier and anti-theft method thereof

Technical Field

The present invention relates to an apparatus and method, and more particularly, to an electric vehicle and an anti-theft method thereof.

Background

Electric vehicles generally refer to vehicles that travel on a road surface propelled by an electric motor or traction motor. The electric vehicles include electric automobiles, electric trains, electric locomotives, electric bicycles, and the like.

With regard to electric vehicles, common anti-theft measures include: disc brake locks, large locks, faucet locks, and magnet locks, however, these anti-theft measures cannot effectively solve the problem of theft.

Disclosure of Invention

The invention provides an electric carrier and an anti-theft method thereof, which aim to solve the problems in the prior art.

In an embodiment of the present invention, an electric vehicle includes a motor, a communication device, and a controller electrically connected to the communication device and the motor. The communication device reads the private key of the carrier key, and the controller decrypts the ciphertext by using the private key to serve as a basis for starting the motor.

In an embodiment of the invention, the controller is a motor controller, the firmware of the motor controller preloads a preset plaintext, the controller includes a motor control circuit, a first storage and a decryption device, the motor control circuit is electrically connected to the motor, and the decryption device is electrically connected to the motor control circuit. The first storage stores a first preset ciphertext, the decryption device decrypts the first preset ciphertext of the first storage by using a private key to obtain a first plaintext, and then whether the first plaintext accords with the preset plaintext is judged.

In an embodiment of the invention, the electric vehicle further includes an identification device. The identification device receives the biometric identification information and then judges whether the biometric identification information conforms to default verification data.

In an embodiment of the invention, the electric vehicle further includes a battery, and the battery is electrically connected to the decryption device. The battery is provided with a second storage device, the second storage device stores a second preset ciphertext, the decryption device decrypts the second preset ciphertext by using the private key to obtain a second plaintext, and then whether the second plaintext accords with the preset plaintext is judged.

In an embodiment of the invention, the motor control circuit starts the motor when the first plaintext matches with the predetermined plaintext, when the biometric information matches with the default verification data, and when the second plaintext matches with the predetermined plaintext.

In an embodiment of the present invention, the anti-theft method for an electric vehicle provided by the present invention includes the following steps: reading a private key of the carrier key; and decrypting the ciphertext by using the private key to serve as a basis for starting the motor.

In an embodiment of the present invention, the anti-theft method further includes: preloading a preset plaintext through the firmware of the controller; pre-storing a first preset ciphertext through a controller; the first preset ciphertext of the controller is decrypted by using the private key to obtain a first plaintext, and whether the first plaintext is consistent with the preset plaintext is judged.

In an embodiment of the present invention, the anti-theft method further includes: receiving the biometric information, and further determining whether the biometric information matches a predetermined verification data.

In an embodiment of the present invention, the anti-theft method further includes: the second preset ciphertext is prestored in the battery, the second preset ciphertext of the battery is decrypted by using the private key to obtain a second plaintext, and whether the second plaintext is consistent with the preset plaintext is judged.

In an embodiment of the present invention, the anti-theft method further includes: and when the first plaintext conforms to the preset plaintext, the biological characteristic identification information conforms to the default verification data, and the second plaintext conforms to the preset plaintext, starting the motor through the controller.

In conclusion, compared with the prior art, the technical scheme of the invention has obvious advantages and beneficial effects. Through the technical scheme of the invention, the theft rate of the whole vehicle can be reduced, and the condition that a thief only takes parts such as a battery, a motor and the like when stealing the vehicle can be prevented, so that the thief is not interested in the theft rate, and the purpose of reducing the theft rate of the electric vehicle is achieved.

The above description will be described in detail by embodiments, and further explanation will be provided for the technical solution of the present invention.

Drawings

In order to make the aforementioned and other objects, features, and advantages of the present invention comprehensible, embodiments accompanied with figures are described below.

Fig. 1 is a block diagram of an electric vehicle according to an embodiment of the invention;

fig. 2 is a flowchart of an anti-theft method for an electric vehicle according to an embodiment of the invention.

In order to make the aforementioned and other objects, features, and advantages of the present invention comprehensible, reference numerals are as follows:

100, electric vehicle

110, motor

120, communication device

130, controller

131, motor control circuit

132, first reservoir

133, decryption device

140, identification device

150, battery

152, second reservoir

170, carrier Key

200, anti-theft method

S201, S202, step

Detailed Description

In order to make the description of the present invention more complete and complete, reference is made to the various embodiments of the invention as illustrated in the accompanying drawings and described below, in which like reference numerals designate the same or similar elements. In other instances, well-known elements and steps have not been described in detail in order to avoid unnecessarily obscuring the present invention.

In the description of the embodiments and the claims, reference to "connected" may generally mean that one element is indirectly coupled to another element through another element or that one element is directly connected to another element without the need for other elements.

In the description of the embodiments and the claims, reference to "connected" may generally refer to one component being in wired and/or wireless communication, indirectly, with another component through the other component or one component being physically connected to the other component without the other component.

In the embodiments and claims, the articles "a" and "an" may refer broadly to one or more than one, unless the context specifically states otherwise.

As used herein, "about", "approximately" or "approximately" is intended to modify any slightly variable quantity without changing its essence. Unless otherwise specified, the range of error for values modified by "about", "about" or "approximately" is generally tolerated within twenty percent, preferably within ten percent, and more preferably within five percent, of the value.

Fig. 1 is a block diagram of an electric vehicle 100 according to an embodiment of the invention. As shown in fig. 1, the electric vehicle 100 may include a motor 110, a communication device 120, a controller 130, and a battery 150. For example, the communication device 120 may be a near field communication device, and the vehicle key 170 has a near field communication tag. In the configuration, the controller 130 is electrically connected to the communication device 120, the motor 110 and the battery 150.

In one embodiment of the present invention, when the electric vehicle 100 is manufactured by a vehicle manufacturer, a string with a specific length is first used as a plaintext (which is only used as a parameter to be encrypted without being encrypted). A group of unique public keys and private keys are generated through a secret key software tool, plaintext is encrypted by using the public keys to form ciphertext, the ciphertext is written into storage devices of micro control units of electronic components such as the battery 150 and the controller 130 respectively, and the micro control units have an anti-tamper function and can protect data from being copied and modified. In practical applications, the electric vehicle 100 may be a vehicle, and the public/private key of each vehicle is different and unique, so that the public/private keys of the keys or parts of other vehicles cannot be decrypted at the vehicle.

The private key is written to the carrier key 170. And writing the public key into the cloud server. The public key is not intended to be disclosed, unlike conventional usage. When a user purchases an electric vehicle, the user needs to connect to the cloud server for registration, and the public key stored in the cloud server is connected with the account number through the private key in the vehicle key 170. In practical application, the public key is placed in a cloud server, and can be returned to a vehicle factory to generate a cipher text and store the cipher text on a new part in case of part failure aging or loss in the future.

When the user wants to activate the electric vehicle 100, the user brings the vehicle key 170 close to the communication device 120 of the electric vehicle 100, the communication device 120 reads the private key of the vehicle key 170 and transmits the private key to the controller 130, and the controller 130 decrypts the ciphertext by using the private key as a basis for starting the motor 110.

In fig. 1, the controller 130 includes a motor control circuit 131, a first storage 132, and a decryption device 133. In the structure, the motor control circuit 131 is electrically connected to the motor 110, and the decryption device 133 is electrically connected to the motor control circuit 131. For example, the decryption device 133 may be firmware and/or circuitry, and the battery 150 is electrically connected to the decryption device 133.

The controller 130 is a motor controller, the firmware of the motor controller preloads a preset plaintext, the first memory 132 stores a first preset ciphertext, the decryption device 133 decrypts the first preset ciphertext of the first memory 132 by using a private key to obtain the first plaintext, and then determines whether the first plaintext matches the preset plaintext. If the vehicle key 170 is correct, the specific length of the character string (i.e., plaintext) can be extracted, and the process is to prevent the body of the electric vehicle 100 from being stolen.

In fig. 1, the battery 150 has a second storage 152, the second storage 152 stores a second predetermined ciphertext, and the decryption device 133 decrypts the second predetermined ciphertext stored in the second storage 152 by using the private key to obtain a second plaintext, so as to determine whether the second plaintext matches the predetermined plaintext. This process is primarily intended to prevent theft of parts (e.g., battery 150).

In an embodiment of the present invention, the battery 150 and the controller 130 can store the same predetermined secret, so that the vehicle key 170 only needs to store one private key.

In an embodiment of the present invention, when the first plaintext matches with the predetermined plaintext and the second plaintext matches with the predetermined plaintext, the motor control circuit 131 starts the motor 110.

In fig. 1, the electric vehicle 100 may optionally include an identification device 140. For example, the recognition device 140 may be a biometric recognition device (e.g., a fingerprint recognition device, a retina recognition device, etc.) and/or an electronic combination lock device. The identification device 140 receives the biometric identification information and determines whether the biometric identification information matches the default verification data.

In an embodiment of the present invention, the motor control circuit 131 starts the motor 110 when the first plaintext matches the predetermined plaintext, the biometric information matches the predetermined verification data, and the second plaintext matches the predetermined plaintext.

To further describe the anti-theft method of the electric vehicle 100, please refer to fig. 1-2, and fig. 2 is a flowchart of an anti-theft method of an electric vehicle according to an embodiment of the invention. As shown in fig. 2, the anti-theft method 200 includes steps S201 and S202 (it is understood that, except for the specific sequence, the sequence of the steps mentioned in this embodiment can be adjusted according to actual needs, and even can be executed simultaneously or partially simultaneously).

In step S201, a private key of the vehicle key is read. In step S202, the private key is used to decrypt the ciphertext, which is used as a basis for starting the motor.

In the anti-theft method 200, a preset plaintext is preloaded through the firmware of the controller 130; pre-storing a first preset cipher text by the controller 130; the private key is used to decrypt the first predetermined ciphertext of the controller 130 to obtain a first plaintext, and then it is determined whether the first plaintext matches the predetermined plaintext. If so, the carrier key 170 may be able to extract the string (i.e., plaintext) of the specific length, which is intended to prevent the body of the electric carrier 100 from being stolen.

In the anti-theft method 200, the battery 150 stores the predetermined ciphertext in advance, and the private key is used to decrypt the predetermined ciphertext of the battery 150 to obtain a second plaintext, so as to determine whether the second plaintext matches the second predetermined plaintext. This process is primarily intended to prevent theft of parts (e.g., battery 150).

In the anti-theft method 200, biometric identification information (e.g., password, biometric characteristic, etc.) is received, and it is determined whether the biometric identification information matches the default verification data. When the first plaintext matches the predetermined plaintext, the biometric information matches the default verification data, and the second plaintext matches the predetermined plaintext, the motor 110 is turned on by the controller 130.

In conclusion, compared with the prior art, the technical scheme of the invention has obvious advantages and beneficial effects. Through the technical scheme of the invention, the theft rate of the whole vehicle can be reduced, and the situation that a thief only takes parts when stealing the vehicle can be prevented, so that the thief is not interested in the theft rate, and the purpose of reducing the theft rate of the electric vehicle is achieved.

Although the present invention has been described with reference to the above embodiments, it should not be construed as limiting the scope of the invention. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention, and the scope of protection is, therefore, defined by the claims appended hereto.

Claims

1. An electric vehicle comprising:

a motor;

a communication device for reading a private key of a carrier key; and

the controller is electrically connected with the communication device and the motor and used for decrypting the ciphertext according to the private key so as to be used as a basis for starting the motor;

an identification device for receiving a biometric identification information and further determining whether the biometric identification information matches a default verification data;

the controller is used for decrypting a ciphertext according to the private key, and comprises:

preloading a preset plaintext through the firmware of the controller; pre-storing a first preset ciphertext through the controller; and decrypting the first preset ciphertext of the controller by using a private key to obtain a first plaintext, and further judging whether the first plaintext is consistent with the preset plaintext.

2. The electric vehicle of claim 1, wherein the controller is a motor controller, the firmware of the motor controller pre-loads a default plaintext, the controller comprising:

a motor control circuit electrically connected to the motor;

a first memory for storing a first predetermined cipher text; and

and the decryption device is electrically connected with the motor control circuit and is used for decrypting the first preset ciphertext in the first storage by using the private key to obtain a first plaintext so as to judge whether the first plaintext accords with the preset plaintext.

3. An electric vehicle according to claim 2, further comprising:

the battery is electrically connected with the decryption device and provided with a second storage, the second storage stores a second preset ciphertext, the decryption device is used for decrypting the second preset ciphertext of the second storage by using the private key to obtain a second plaintext, and then judging whether the second plaintext accords with the preset plaintext.

4. The electric vehicle of claim 3, wherein the motor control circuit activates the motor when the first plaintext conforms to the predetermined plaintext, the biometric identifier conforms to the default verification data, and the second plaintext conforms to the predetermined plaintext.

5. An anti-theft method for an electric vehicle, the anti-theft method comprising:

reading a private key of a carrier key; and

decrypting the ciphertext by using the private key to serve as a basis for starting a motor; and

receiving biological characteristic identification information, and further judging whether the biological characteristic identification information accords with default verification data;

decrypting the ciphertext using the private key comprises:

the firmware of the controller preloads a preset plaintext; pre-storing a first preset ciphertext through the controller; and decrypting the first preset ciphertext of the controller by using a private key to obtain a first plaintext, and further judging whether the first plaintext is consistent with the preset plaintext.

6. The anti-theft method according to claim 5, further comprising:

a second preset ciphertext is prestored in a battery, the second preset ciphertext of the battery is decrypted by using the private key to obtain a second plaintext, and whether the second plaintext is consistent with the preset plaintext is judged.

7. The anti-theft method according to claim 6, further comprising:

starting the motor by the controller when the first plaintext conforms to the predetermined plaintext, the biometric information conforms to the default verification data, and the second plaintext conforms to the predetermined plaintext.