Automobile emergency start control method based on authentication encryption and password verification

Abstract

The present invention discloses a method for controlling emergency starting of a car based on authentication encryption and password verification. The main design concept of the present invention is to use authentication encryption and password verification to realize an emergency plan for starting and driving the vehicle in the event of a one-button start antenna failure or the legal key being taken away from the vehicle, in order to improve the convenience of using the vehicle. Specifically, under special circumstances, human-computer interaction is realized through the logic algorithm between the first controller and the second controller, bypassing the traditional security mechanism of the existing antenna searching for the legal key, and with the dual protection of authentication encryption and password verification, the safety and convenience of emergency use of the vehicle are realized. The present invention uses the existing controller to set the emergency starting strategy. Under the premise of ensuring safety, it does not limit the vehicle model configuration, and does not need to install a remote control module or a dedicated fingerprint recognition system, so it does not incur additional hardware costs and can effectively and economically provide users with convenient car use.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle control, and in particular to an automobile emergency start control method based on authentication encryption and password verification. Background Art

[0002] Cars have become ubiquitous in every household, bringing significant convenience to people's lives. This is especially true for vehicles equipped with PEPS (PEPS controller: a control unit for keyless entry (PE) and push-to-start (PS). It enables switching between the vehicle's IGN-ACC-OFF state and keyless entry, initiates a start request, and can also disconnect IG1 power to shut down the vehicle. Vehicles can also be configured with a push-to-start function. Simply carrying the key with you allows you to unlock and start the vehicle without having to operate the key or insert it into the ignition lock. These features require the PEPS antenna system to function properly and a valid key to be within range. If the antenna system malfunctions or a valid key is removed from the vehicle by another passenger, the vehicle's power-on and driving capabilities will be limited, making it unavailable for customers.

[0003] Currently, some cars are equipped with remote control functions, which allow remote operation of the vehicle through mobile phones and other device terminals. Some models support remote start of system functions such as air conditioning. However, to ensure safety, remote start only supports automatic transmission models and cannot support vehicle driving functions. A local legal key and a normal PEPS antenna system are required to drive the vehicle, and the vehicle needs to be equipped with a remote control module. In addition, there are also attempts to install a fingerprint recognition system to control vehicle startup, that is, adding a fingerprint recognition function on the basis of a legal key, and performing normal operations by writing and recognizing fingerprints. The above existing solutions all have certain application limitations and high costs, and can only support specific users or specific models, and are not universal. Summary of the Invention

[0004] In view of the above, the present invention aims to provide a vehicle emergency start control method based on authentication encryption and password verification to solve the aforementioned problem of functional limitation caused by a PEPS antenna failure or the removal of the legitimate key for a vehicle with a one-button start configuration.

[0005] The technical solution adopted in the present invention is as follows:

[0006] The present invention provides a method for controlling emergency start of an automobile based on authentication encryption and password verification, which includes:

[0007] Establishing an authentication and encryption mechanism in advance between the first controller and the second controller in the vehicle;

[0008] After unlocking the vehicle, if the second controller cannot search for a valid key when the power-on start switch is triggered, the vehicle's normal start mode is disabled;

[0009] The first controller starts the preset human-computer interaction mode and verifies whether the password entered by the current user is correct;

[0010] After the password verification is passed, the first controller sends an emergency start request to the second controller;

[0011] The second controller controls the vehicle to start the ignition and enter the emergency start mode in response to the emergency start request.

[0012] In at least one possible implementation, establishing the authentication and encryption mechanism includes offline calibration and matching of the first controller and the second controller, and storing the calibration and matching results of the first controller and the second controller in the second controller.

[0013] In at least one possible implementation manner, a pre-configured emergency start mode password is stored in the first controller, and in a non-emergency start mode, the password can be reset and updated.

[0014] In at least one possible implementation, the search for a legitimate key is suspended while disabling the normal vehicle start mode.

[0015] In at least one possible implementation, a prompt message is output while disabling the normal start mode of the vehicle; the prompt message includes information indicating that the normal ignition and start of the vehicle is disabled due to the inability to detect a legitimate key, and / or includes information indicating that the user is guided to use a preset human-computer interaction interface to verify the emergency start mode password.

[0016] In at least one possible implementation, the control method further includes: if the password verification fails within a preset number of times, disabling the emergency start mode.

[0017] In at least one possible implementation, the control method further includes: presetting a usage count threshold for the emergency start mode, and disabling the emergency start mode when the count of using the emergency start mode exceeds the usage count threshold until a legitimate key is found again and the count is reset to zero.

[0018] In at least one possible implementation, the first controller is an in-vehicle interactive system controller, and the second controller is a keyless system controller.

[0019] The main design concept of the present invention is to improve the convenience of using the vehicle, and to use authentication encryption and password verification to implement an emergency plan for the vehicle to be powered on and driven in the scenario of a one-button start antenna failure or the legal key being taken away from the vehicle. Specifically, under special circumstances, human-computer interaction is achieved through the logic algorithm between the first controller and the second controller, bypassing the traditional security mechanism of the existing antenna searching for the legal key, and with the dual protection of authentication encryption and password verification, the safety and convenience of emergency use of the vehicle are achieved. The present invention uses the existing controller to set the emergency start strategy. Under the premise of ensuring safety, it does not limit the vehicle model configuration, and does not require the installation of a remote control module or a dedicated fingerprint recognition system, so there is no additional hardware cost, and it can effectively and economically provide users with vehicle convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be further described below with reference to the accompanying drawings, in which:

[0021] Figure 1 This is a flow chart of a vehicle emergency start control method based on authentication encryption and password verification provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0022] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0023] Before developing the specific solutions of the present invention, the design concept of the present invention is explained again: the one-button start (PS) configuration function controls the ACC relay and IG1 relay of the vehicle through the PS controller (or PEPS controller), and at the same time searches for the legal key in the vehicle through its own low-frequency antenna. After confirming that the legal key is within the preset range, it can respond to the user's operation to send a start request and start the vehicle. If the antenna system fails or the legal key is missing at this time, the vehicle cannot be started according to the current control logic, which brings inconvenience to emergency vehicle use in certain specific scenarios. Therefore, the purpose of the present invention is to bypass the verification path composed of the antenna and key when the antenna system fails or the legal key is missing, and temporarily authorize the driver and passengers to power on and start the vehicle after password verification, and further limit the number of power-on and ignition times under this special vehicle use condition, so as to completely solve the inconvenience problem of emergency vehicle use in special circumstances, and at the same time reduce the security risks such as theft and transfer of the vehicle.

[0024] The present invention proposes an embodiment of a vehicle emergency start control method based on authentication encryption and password verification. Specifically, Figure 1shown, including:

[0025] Step S1: Establishing an authentication and encryption mechanism between the first controller and the second controller in the vehicle in advance;

[0026] Step S2: After the vehicle is unlocked, if the second controller cannot search for a valid key when the power-on start switch is triggered, the normal start mode of the vehicle is disabled;

[0027] Step S3: The first controller starts a preset human-computer interaction mode and verifies whether the password entered by the current user is correct;

[0028] Step S4: After the password verification is passed, the first controller sends an emergency start request to the second controller;

[0029] Step S5: The second controller responds to the emergency start request, controls the vehicle to ignite and start, and enters the emergency start mode.

[0030] The establishment of the authentication and encryption mechanism includes offline calibration and matching of the first controller and the second controller, and storing the calibration and matching results of the two in the second controller.

[0031] Accordingly, the pre-configured emergency start mode password is stored in the first controller, and in the non-emergency start mode, the password can be reset and updated.

[0032] Furthermore, while disabling the normal vehicle start mode, the search for a legitimate key is terminated.

[0033] Furthermore, while disabling the normal start mode of the vehicle, a prompt message is output, which includes information indicating that the normal ignition and start of the vehicle is disabled due to the inability to detect a legitimate key, and / or includes information indicating that the user is guided to use a preset human-computer interaction interface to verify the emergency start mode password.

[0034] Furthermore, the control method further includes: if the password verification fails within a preset number of times, disabling the emergency start mode.

[0035] Furthermore, the control method further includes: presetting a usage count threshold for the emergency start mode, and disabling the emergency start mode when the count of using the emergency start mode exceeds the usage count threshold until a legitimate key is found again and the count is reset to zero.

[0036] Finally, it can be explained that the first controller is an in-vehicle interactive system controller (such as MP5\HU), and the second controller is a keyless system controller (PEPS or PS).

[0037] In summary, the concepts of the present invention can be embodied in a real-world usage environment: an authentication and encryption verification mechanism is pre-established between an entertainment host (using a HU as an example) and a push-to-start controller (PEPS or PS, hereinafter using the PEPS as an example). (When the vehicle is offline, dedicated offline equipment can be used to calibrate and match the authentication mechanism. If the HU or PEPS is replaced during the after-sales phase, the dedicated offline equipment also requires recalibration and matching.) The calibration and matching results are recorded in the PEPS controller's memory. In other words, only after the calibration and matching pass can the PEPS respond to the vehicle emergency start request sent by the HU; otherwise, the PEPS refuses to respond. This indicates that binding the HU and PEPS through calibration and matching effectively mitigates security risks associated with replacing the HU or PEPS.

[0038] In addition, the display screen currently equipped in automobiles is used to display the content of functional interfaces such as vehicle settings, audio system, and navigation system, which can meet the needs of users to adjust settings and other operations. Therefore, when developing the automobile, a corresponding emergency start mode password input interface can be designed in the vehicle settings menu on the display screen, and the initial password can be changed by a legitimate user (the password can only be modified and reset when the vehicle is in non-emergency start mode). The password is recorded in the HU controller memory. If the password is entered incorrectly three times in a row, the HU prohibits the password input function and the emergency start function is disabled.

[0039] After the password verification is successful, the HU sends an emergency start request to the PEPS controller. After receiving the request sent by the HU, the PEPS controller stops executing the original processing logic of searching for and identifying the legitimate key with the antenna, and directly responds to normal operations such as powering on, powering off, and driving the vehicle by the currently verified user.

[0040] Furthermore, PEPS can limit the number of times the emergency start mode can be used. For example, after three uses, the above-mentioned emergency start function is disabled. The count can only be reset after the legitimate key is re-detected and verified, thereby effectively avoiding the risk of illegal theft of the vehicle under the premise of the solution of the present invention.

[0041] Here is another example based on a real usage scenario: After a PS-equipped vehicle unlocks the vehicle with a mechanical key or a legal key, the vehicle's antenna system fails and cannot determine whether the legal key is in the vehicle (or the legal key is taken away by other drivers or passengers because the key does not need to be operated or the key is not inserted into the ignition lock). The user operates the vehicle's power-on start switch, and the vehicle prompts that there is no legal key in the vehicle or the antenna system fails, and the vehicle's start-up function is disabled. At this time, you can use the vehicle settings menu in the MP5 to open the vehicle's emergency start interface and enter the preset emergency start password. After the password is verified, it will prompt that the vehicle has entered the emergency start mode. At this time, operate the vehicle's power-on start switch, and the vehicle can be powered on and driven normally. If the password verification is incorrect, the function will be disabled, and the emergency start mode can only be used three times before a legal key is detected again within the preset range. If it exceeds three times, the function will be disabled.

[0042] In summary, the main design concept of the present invention is to improve the convenience of using the vehicle, and to use authentication encryption and password verification to implement an emergency plan so that the vehicle can be powered on and driven in the scenario of a one-button start antenna failure or the legal key being taken away from the vehicle. Specifically, under special circumstances, human-computer interaction is achieved through the logic algorithm between the first controller and the second controller, bypassing the traditional security mechanism of the existing antenna searching for the legal key, and with the dual protection of authentication encryption and password verification, the safety and convenience of emergency use of the vehicle are achieved. The present invention uses the existing controller to set the emergency start strategy. Under the premise of ensuring safety, it does not limit the vehicle model configuration, and does not need to install a remote control module or a dedicated fingerprint recognition system, so it does not incur additional hardware costs and can effectively and economically provide users with vehicle convenience.

[0043] In the embodiment of the present invention, "at least one" refers to one or more, and "more" refers to two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent the existence of A alone, the existence of A and B at the same time, and the existence of B alone. A and B can be singular or plural. The character " / " generally indicates that the previous and next associated objects are in an "or" relationship. "At least one of the following" and similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one of a, b and c can be represented by: a, b, c, a and b, a and c, b and c, or a, b and c, where a, b, c can be single or multiple.

[0044] The above describes in detail the structure, features and effects of the present invention based on the embodiments shown in the drawings, but the above is only a preferred embodiment of the present invention. It should be noted that the technical features involved in the above embodiments and their preferred modes can be reasonably combined and matched into a variety of equivalent schemes by those skilled in the art without departing from or changing the design ideas and technical effects of the present invention; therefore, the scope of implementation of the present invention is not limited to what is shown in the drawings. Any changes made in accordance with the concept of the present invention, or modifications to equivalent embodiments with equivalent changes, which still do not exceed the spirit covered by the description and drawings, should be within the scope of protection of the present invention.

Claims

1. A method for controlling emergency start of an automobile based on authentication encryption and password verification, characterized in that: include: Establishing an authentication and encryption mechanism in advance between a first controller and a second controller in the vehicle, wherein the first controller is a vehicle interactive system controller and the second controller is a keyless system controller; After unlocking the vehicle, if the second controller cannot search for a valid key when the power-on start switch is triggered, the vehicle's normal start mode is disabled; The first controller starts the preset human-computer interaction mode and verifies whether the password entered by the current user is correct; After the password verification is passed, the first controller sends an emergency start request to the second controller; The second controller controls the vehicle to start the ignition and enter the emergency start mode in response to the emergency start request; In addition, the pre-configured emergency start mode password is stored in the first controller, and in the non-emergency start mode, the password can be automatically reset and updated.

2. The automobile emergency start control method based on authentication encryption and password verification according to claim 1 is characterized in that: The establishment of the authentication and encryption mechanism includes: offline calibration and matching of the first controller and the second controller, and storing the calibration and matching results of the two in the second controller.

3. The automobile emergency start control method based on authentication encryption and password verification according to claim 1 is characterized in that: The search for a legitimate key is aborted while disabling the vehicle's normal starting mode.

4. The automobile emergency start control method based on authentication encryption and password verification according to claim 1, characterized in that: While disabling the normal start mode of the vehicle, a prompt message is output; the prompt message includes information indicating that the normal ignition start of the vehicle is disabled due to the inability to detect a legitimate key, and / or includes information indicating that the user is guided to use a preset human-computer interaction interface to verify the emergency start mode password.

5. The automobile emergency start control method based on authentication encryption and password verification according to claim 1 is characterized in that: The control method further includes: if the password verification fails within a preset number of times, disabling the emergency start mode.

6. The automobile emergency start control method based on authentication encryption and password verification according to claim 1 is characterized in that: The control method further includes: presetting a usage count threshold of the emergency start mode, and disabling the emergency start mode when the count of using the emergency start mode exceeds the usage count threshold until a legitimate key is found again and the count is reset to zero.

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