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KR-20260066926-A - Method For Power Control for Enhancing Security and Apparatus For the same

KR20260066926AKR 20260066926 AKR20260066926 AKR 20260066926AKR-20260066926-A

Abstract

According to one embodiment of the present invention, a method for supplying or restricting power to a plurality of controller units installed in a vehicle for security is proposed, the method may include: a step of detecting a key-on signal of the vehicle; a step of supplying restricted power to the plurality of controller units upon detection of the key-on signal; a step of waiting to receive an authentication code transmitted from each of the plurality of controllers; and a step of stopping the supply of restricted power to the corresponding controller unit if, during a timer period, the received authentication code does not match a predefined authentication code or is not received. The restricted power may be supplied through a power line communication (PLC) line.

Inventors

  • 정진혁

Assignees

  • 현대모비스 주식회사

Dates

Publication Date
20260512
Application Date
20241105

Claims (10)

  1. A method for supplying or limiting power to a plurality of controller units installed in a vehicle for security purposes, A step of detecting the key-on signal of the above vehicle; A step of supplying limited power to the plurality of controller units according to the detection of the above key-on signal; A step of waiting to receive an authentication code transmitted from each of the plurality of controllers; and If the authentication code received during the timer period does not match a predefined authentication code or is not received, the step of stopping the supply of limited power to the corresponding controller unit; The above limited power is supplied through a power line communication (PLC) line, method.
  2. In claim 1, if the received authentication code matches a predefined authentication code, the method includes the step of supplying un-restricted power to the corresponding controller unit. method.
  3. In paragraph 2, for the controller unit supplied with the above-mentioned non-restricted power, a step of monitoring the power load; and A step comprising interrupting the supply of non-limited power to the first controller unit when the power load of the monitored first controller unit is greater than the power load to be supplied to the first controller unit, method.
  4. In paragraph 2, the step of monitoring the power load for the above-mentioned non-restricted power source; If the total power load according to the above-mentioned non-limiting power source is greater than the power load to be supplied to the controller unit supplied with the above-mentioned non-limiting power source, the step of detecting a controller unit having a power load greater than the power load to be supplied; and A step comprising interrupting the supply of non-restricted power to the detected controller unit, method.
  5. A method for supplying or limiting power to a plurality of controller units installed in a vehicle for security purposes, Step of receiving limited power for the authentication process; A step of generating an authentication code using the above-mentioned limited power and transmitting the generated authentication code; and The method includes the step of receiving unrestricted power as the transmitted authentication code matches a predefined authentication code, and The above limited power is supplied through a power line communication (PLC) line, method.
  6. As a device for supplying power to or controlling multiple controller units installed in a vehicle for security purposes, A transceiver configured to receive an authentication code from any one of the plurality of controller units; and It includes a controller configured to supply limited power or non-limited power to the plurality of controller units mentioned above, and The above controller is: Detecting the key-on signal of the above vehicle, and Upon detection of the above key-on signal, limited power is supplied to the plurality of controller units, and Waiting for authentication codes transmitted from each of the aforementioned plurality of controllers, and If the authentication code received during the timer period does not match a predefined authentication code or is not received, it is configured to cut off the limited power supply to the corresponding controller unit, and The above limited power is supplied through a power line communication (PLC) line, device.
  7. In paragraph 6, the above controller is: If the above-mentioned received authentication code matches a predefined authentication code, configured to supply un-restricted power to the corresponding controller unit, device.
  8. In paragraph 7, the above controller is: For the controller unit supplied with the above-mentioned non-restricted power, the power load is monitored, and Configured to stop supplying non-limited power to the first controller unit when the power load of the monitored first controller unit is greater than the power load to be supplied to the first controller unit, device.
  9. In paragraph 7, the above controller is: For the above-mentioned non-limited power source, monitor the power load, and If the total power load according to the above-mentioned non-limited power source is greater than the power load to be supplied to the controller unit supplied with the above-mentioned non-limited power source, the controller unit having a power load greater than the power load to be supplied is detected, and Configured to interrupt the supply of non-restricted power to the above-detected controller unit, device.
  10. As a device for supplying or limiting power to multiple controller units installed in a vehicle for security purposes, A transceiver configured to transmit an authentication code to a power supply or control unit; and It includes a controller configured to generate an authentication code or perform system booting using limited power or non-limited power supplied from the power supply or control device, and The above controller is: supplied with limited power for the authentication process, Generate an authentication code using the above-mentioned limited power, transmit the generated authentication code, and As the above-mentioned transmitted authentication code matches a predefined authentication code, it is configured to receive unrestricted power, and The above limited power is supplied through a power line communication (PLC) line, device.

Description

Method for Power Control for Enhancing Security and Apparatus for the Same The present invention relates to a power control method for enhancing security and an apparatus for the same, and more specifically, to an apparatus or a control method for the same for controlling the supply of power through authentication of a connected controller unit. Generally, an electronic control unit (ECU) transmits and receives power, data, etc., by separating it into power lines and communication or hard-wired in and out lines; among these, the power lines are used solely to supply the power necessary for system operation. Communication for authentication is performed through a communication interface according to a security authentication method, and secure communication is also performed through encryption/decryption of communication messages. However, conventionally, since the security authentication procedure is performed after power is supplied to each controller unit and communication is initiated, it may not be possible to detect if a controller unit modified with malicious intent is connected. Accordingly, technology is required to detect or prevent the connection of a controller unit modified with malicious intent by performing an authentication procedure before power is supplied to the controller unit. The accompanying drawings, which are included as part of the detailed description to aid in understanding the present invention, provide embodiments of the present invention and explain the contents of the present invention together with the detailed description. Figure 1 is an overall block diagram of an autonomous vehicle to which an autonomous driving device can be applied. Figure 2 is an example diagram showing an example of an autonomous driving device being applied to a vehicle. Figure 3 illustrates the in-vehicle control architecture. FIG. 4 illustrates a structural diagram for vehicle power supply or control according to the present invention. FIG. 5 illustrates a detailed structural diagram for vehicle power supply or control according to the present invention. FIG. 6 illustrates a flowchart of a method for power supply and control according to the present invention. FIG. 7 illustrates a flowchart of a method for power supply and control according to the present invention. FIG. 8 illustrates a block diagram of a device and a controller unit for power supply and control according to the present invention. Embodiments of the present invention will be described below with reference to the attached drawings. The embodiments described below are intended to aid in understanding the invention and are therefore not limited to the embodiments described below. Additionally, in the accompanying drawings, certain components may be depicted in an exaggerated or reduced manner to aid in understanding the invention. The invention is not limited to the form depicted in the accompanying drawings. Throughout the specification, when a part is described as "including" a certain component, this means that, unless specifically stated otherwise, it does not exclude other components but may include additional components. Additionally, in the specification, terms such as “passenger,” “driver,” “user,” etc. are mentioned for the description of the invention, and it should be noted that these terms may be used interchangeably. FIG. 1 is an overall block diagram of an autonomous driving control system to which an autonomous driving device according to any one of the embodiments of the present invention may be applied. FIG. 2 is an illustrative diagram showing an example of an autonomous driving device according to any one of the embodiments of the present invention being applied to a vehicle. First, with reference to FIGS. 1 and 2, the structure and function of an autonomous driving control system (e.g., an autonomous driving vehicle) to which the autonomous driving device according to the embodiments can be applied will be described. As illustrated in FIG. 1, an autonomous vehicle (1000) may be implemented around an autonomous driving integrated control unit (600) that transmits and receives data necessary for autonomous driving control of the vehicle through a driving information input interface (101), a driving information input interface (201), a passenger output interface (301), and a vehicle control output interface (401). However, the autonomous driving integrated control unit (600) may be referred to as a controller, a processor, or simply a control unit in the specification. The autonomous driving integrated control unit (600) can obtain driving information based on the operation of the passenger on the user input unit (100) in the autonomous driving mode or manual driving mode of the vehicle through the driving information input interface (101). As shown in FIG. 1, the user input unit (100) may include a driving mode switch (110) and a control panel (120) (e.g., a navigation terminal mounted on the vehicle, a smartphone or