Power-up control system for electric all-terrain vehicles

Abstract

This utility model discloses a power-on control system for an electric all-terrain vehicle, including a power-on switch, a smart key system, and a vehicle controller. The power-on switch sends a power-on signal to the smart key system. The smart key system is electrically connected to the power-on switch and initiates vehicle authentication upon detecting the power-on signal. After successful authentication, it sends a wake-up signal to the vehicle controller. The vehicle controller is signal-connected to the smart key system and, upon receiving the wake-up signal, performs security authentication on the smart key system. Upon successful authentication, it sends a drive signal to the ON-position power supply control module to power on the vehicle at low voltage. This application achieves dual vehicle authentication through the coordinated control of the power-on switch, smart key system, and vehicle controller, ensuring that only a valid key can start the vehicle, significantly improving anti-theft security. Simultaneously, the step-by-step wake-up mechanism reduces the static power consumption of the power-on controller and optimizes energy management.

Description

Technical Field

[0001] This utility model relates to the field of electric all-terrain vehicles, specifically to an electric all-terrain vehicle power-on control system. Background Technology

[0002] An electric all-terrain vehicle (eATV) is a multi-purpose off-road vehicle powered by electricity, capable of traversing complex terrains such as deserts, mud, snow, and mountains. Compared to traditional fuel-powered all-terrain vehicles, it is more environmentally friendly, quieter, and easier to maintain.

[0003] Conventional all-terrain vehicles typically use mechanical keys to power on low voltage via pure electrical control. However, mechanical keys offer lower security and less convenience. The power switch (SB) is a core component of the vehicle's power system, a button device that simplifies the power-on and power-off process. With the SB, the owner can start the vehicle with a single button, eliminating the need for a traditional mechanical key and significantly improving convenience. However, because all-terrain vehicles are often parked outdoors, and many have open designs, anyone can operate the SB, compromising vehicle security.

[0004] Passive Keyless Entry (PKE) is a vehicle authentication system that uses RFID wireless radio frequency technology and vehicle identification coding. By integrating remote control and keyless entry systems, it enables vehicles equipped with a smart key system to recognize the remote key simply by the owner approaching the vehicle or touching a door. If recognition is successful, the vehicle sends control commands to the actuators (such as doors, windows, lights, and horn) to perform the corresponding actions. Existing smart key systems mainly include: 1. Automatically unlocking the doors when the owner approaches the vehicle, while simultaneously controlling the flashing lights and horn; 2. Automatically locking the doors when leaving, while simultaneously controlling the flashing lights and horn; 3. Anti-theft alarm function; 4. Low battery warning for the remote control. However, current smart key systems lack security protection for the power-on process of all-terrain vehicles. Utility Model Content

[0005] The purpose of this invention is to provide a power-on control system for electric all-terrain vehicles to solve the problem of low anti-theft security of current power-on control systems for electric all-terrain vehicles.

[0006] To solve the above-mentioned technical problems, this utility model provides a power-on control system for an electric all-terrain vehicle, including a power-on switch SB, a smart key system PKE, and a vehicle controller VCU;

[0007] The power switch is used to send a power signal to the PKE (Power Key Equipment) smart key system.

[0008] The smart key system PKE is electrically connected to the power switch SB. It is used to initiate vehicle identity authentication when the switch electrical signal is detected, and to send a wake-up signal to the vehicle controller VCU after successful vehicle identity authentication.

[0009] The vehicle control unit (VCU) is connected to the smart key system (PKE) signal. After receiving the wake-up signal, it sends an authentication request signal to the smart key system (PKE). After receiving the authentication feedback signal returned by the smart key system (PKE), it sends a drive signal to the ON position power supply control module to enable the vehicle to be powered on at low voltage.

[0010] Furthermore, the vehicle controller (VCU) is electrically connected to the power switch (SB) to identify the switching signal emitted by the power switch (SB) and send a shutdown signal to the ON position power supply control module according to the switching signal, so that the vehicle is powered off at low voltage.

[0011] Furthermore, the smart key system PKE includes the key controller PKE. BS and remote key PKE T PKE key controller BS Installed in the vehicle, used to input the remote key PKE T Send radio frequency signals to wake up the remote key PKE T Remote key PKE T Used to receive key controller PKE BS It emits radio frequency signals and responds with authentication.

[0012] Furthermore, the power-on switch SB is a push-button switch; pin 1 of the power-on switch SB is connected to the key controller PKE. BS The GND pin is connected to ground, and pin 2 of the power-on switch SB is connected to the key controller PKE. BS The first drive pin is connected, and the 3rd pin of the power-on switch SB is connected to the key controller PKE. BS The second drive pin is connected, pin 4 of the power-on switch SB is connected to pin 1 of the power-on switch SB, and pin 6 of the power-on switch SB is connected to the start switch input terminal of the vehicle controller VCU and the key controller PKE respectively. BS The power-on switch input pin is connected; when the power-on switch SB is pressed, pins 1, 4 and 6 of the power-on switch SB are connected to each other; when the power-on switch SB is released, pins 1 and 4 of the power-on switch SB are connected to each other.

[0013] Furthermore, the controller system also includes a signal indication unit that is electrically connected to the power-on switch SB and the smart key system PKE, respectively.

[0014] Furthermore, the signal indication unit includes a first indicator light D1, which is connected between pin 1 and pin 2 of the power-on switch SB.

[0015] Furthermore, the signal indication unit includes a second indicator light D2, which is connected between pins 3 and 4 of the power-on switch SB.

[0016] Furthermore, the key controller PKE BS Includes a first microcontroller and a high-frequency receiver and a low-frequency transmitter respectively connected to the first microcontroller; remote key PKE T Includes a second microcontroller and a high-frequency transmitter and a low-frequency receiver respectively connected to the second microcontroller; a key controller PKE BS The first microcontroller transmits a low-frequency signal to the remote key PKE. T The low-frequency receiver sends a low-frequency signal to wake up the remote key PKE. T PKE remote key T Upon receiving the low-frequency signal, the second microcontroller authenticates the signal and sends the authentication response to the key controller PKE via a high-frequency transmitter. BS High-frequency receiver.

[0017] Furthermore, the vehicle control unit (VCU) and the smart key system (PKE) are connected via a CAN bus.

[0018] Furthermore, the ON-position power supply control module is an ON-position relay.

[0019] The beneficial effects of this utility model are as follows: Through the coordinated control of the power-on switch SB, the smart key system PKE and the vehicle controller VCU, dual authentication of vehicle identity and system security is achieved, ensuring that only a legitimate key can start the vehicle, which significantly improves anti-theft security; at the same time, the step-by-step wake-up mechanism of first waking up the vehicle controller VCU and then controlling the low-voltage power-on reduces the static power consumption of the power-on controller and optimizes energy management. Attached Figure Description

[0020] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, use the same reference numerals to denote the same or similar parts. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0021] Figure 1 This is a schematic diagram of one embodiment of the present invention;

[0022] Figure 2This is a schematic diagram of the power-on switch function according to one embodiment of the present invention;

[0023] Figure 3 This is a schematic diagram of a smart key system according to an embodiment of the present invention. Detailed Implementation

[0024] like Figure 1 The power-on control system of the electric all-terrain vehicle shown includes a power-on switch SB, a smart key system PKE, and a vehicle controller VCU. The power-on switch is used to send a power-on signal to the smart key system PKE. The smart key system PKE is electrically connected to the power-on switch SB and is used to initiate vehicle identity authentication when the power-on signal is detected. After successful vehicle identity authentication, it sends a wake-up signal to the vehicle controller VCU. The vehicle controller VCU is signal-connected to the smart key system PKE and is used to send an authentication request signal to the smart key system PKE after receiving the wake-up signal. After receiving the authentication feedback signal returned by the smart key system PKE, it sends a drive signal to the ON position power supply control module to enable low-voltage power-on of the vehicle.

[0025] This invention achieves dual authentication of vehicle identity and system security through the coordinated control of the power-on switch SB, the smart key system PKE, and the vehicle controller VCU, ensuring that only a legitimate key can start the vehicle, thus significantly improving anti-theft security. At the same time, it adopts a step-by-step wake-up mechanism that first wakes up the vehicle controller VCU and then controls the low-voltage power-on, reducing the static power consumption of the power-on controller and optimizing energy management.

[0026] The specific method for secure authentication between the vehicle control unit (VCU) and the smart key system (PKE) can utilize existing technologies. For example, both the smart key system (PKE) and the VCU can store each other's public keys and use their private keys to sign messages during communication. The receiver verifies the signature to confirm the message's origin, thus achieving secure authentication. This secure authentication mechanism can also be combined with the CAN bus communication protocol to effectively prevent unauthorized access, data tampering, and man-in-the-middle attacks, thereby ensuring the normal operation of the vehicle and user privacy.

[0027] According to one embodiment of this application, the vehicle control unit (VCU) is electrically connected to the power-on switch (SB). The VCU identifies the switching signal emitted by the power-on switch (SB) and sends a shutdown signal to the ON-position power supply control module based on the switching signal, causing the vehicle to lose low-voltage power. When a power-off procedure is to be initiated, the user presses the power-on switch (SB). The VCU, which is in operation at this time, identifies the switching signal and directly controls the ON-position power supply control module to send a shutdown signal, causing the ON-position power supply control module to disconnect and the vehicle to lose power.

[0028] This embodiment controls the vehicle to power down by directly using the vehicle controller (VCU) to identify the switch electrical signal. This avoids power-down failures or delays caused by PKE malfunctions or PKE response delays in the smart key system, thus improving the anti-interference capability of power-down.

[0029] According to one embodiment of this application, such as Figure 3 As shown, the smart key system PKE includes a key controller PKE. BS and remote key PKE T PKE key controller BS Installed in the vehicle, used to input the remote key PKE T Send radio frequency signals to wake up the remote key PKE T Remote key PKE T Used to receive key controller PKE BS The system sends out radio frequency signals and performs authentication responses. Upon power-up, the user presses the power-on switch SB, which sends a power-on signal. The smart key system PKE recognizes this signal and its key controller PKEBS sends a radio frequency signal to authenticate with the remote key PKET. Once authentication is successful, the key controller PKEBS wakes up the vehicle controller VCU via the CAN bus, enabling the VCU to perform security authentication (CAN communication) with the key controller PKEBS. After successful authentication, the VCU outputs an ON position relay drive signal, controlling the ON position relay to close, successfully powering on the vehicle at low voltage. The instrument panel and other controllers are illuminated and activated, allowing the user to directly perceive a successful power-on.

[0030] This implementation utilizes a key controller (PKE). BS and remote key PKE T The radio frequency interaction enables two-way authentication in low-power mode, balancing the sensitivity and anti-interference capabilities of key recognition, making it particularly suitable for stable communication in complex environments of all-terrain vehicles.

[0031] According to one embodiment of this application, the power-on switch SB is a push-button switch; pin 1 of the power-on switch SB is connected to the key controller PKE. BS The GND pin is connected to ground, and pin 2 of the power-on switch SB is connected to the key controller PKE. BS The first drive pin is connected, and the 3rd pin of the power-on switch SB is connected to the key controller PKE. BS The second drive pin is connected, pin 4 of the power-on switch SB is connected to pin 1 of the power-on switch SB, and pin 6 of the power-on switch SB is connected to the start switch input terminal of the vehicle controller VCU and the key controller PKE respectively. BSThe power-on switch input pin is connected; when the power-on switch SB is pressed, pins 1, 4, and 6 of the power-on switch SB are interconnected; when the power-on switch SB is released, pins 1 and 4 of the power-on switch SB are interconnected, such as... Figure 2 As shown. When power is applied, pressing the power-on switch SB connects pins 6, 4, and 6 of the power-on switch SB, meaning pin 6 of the power-on switch SB is connected to ground. The key controller PKE... BS After detecting the ground signal, it sends an radio frequency signal to the remote key PKE. T Vehicle identification is performed. Similarly, when power is off, pressing the power-on switch SB connects pins 6, 4, and 6 of the power-on switch SB, meaning pin 6 of the power-on switch SB is connected to ground. The vehicle control unit (VCU) recognizes the ground signal and then initiates power-off control.

[0032] In this embodiment, the power-on switch SB adopts a multi-pin design and, in conjunction with the above-mentioned conduction logic, can realize the power-on and power-off process control triggered by a single switch, simplifying user operation and reducing hardware complexity.

[0033] According to one embodiment of this application, the controller system further includes a signal indication unit electrically connected to the power-on switch SB and the smart key system PKE, respectively. By including the signal indication unit, it is convenient to provide a fault indication via the smart key system PKE when a power-on fault occurs during the power-on process.

[0034] According to one embodiment of this application, the signal indication unit includes a first resistor R1 and a first indicator light D1. The first resistor R1 and the first indicator light D1 are connected in series and then connected between pin 1 and pin 2 of the power-on switch SB.

[0035] The first indicator light D1 can be a red LED light, used to indicate vehicle identification authentication failure.

[0036] According to one embodiment of this application, the signal indication unit includes a second resistor R2 and a second indicator light D2. The second resistor R2 and the second indicator light D2 are connected in series between pins 3 and 4 of the power-on switch SB. The first indicator light D1 can be a red LED used to indicate PKE authentication failures in the smart key system, or it can be combined with the first indicator light D1 to achieve more indication functions.

[0037] Current power-on control systems typically use indicator lights on the power-on switch (SB) itself to indicate faults. This means that current systems can only indicate faults in the power-on switch itself, and cannot provide information about different reasons for power-on failures during the power-on process, resulting in insufficient fault indication. To address this issue, this application proposes using different indicator lights connected to the smart key system (PKE) to differentiate faults at different authentication stages. This would facilitate user identification, prevent user confusion, and reduce the circuit load risk of multiple states sharing a single indicator light.

[0038] The correspondence between signal indication units and faults can be set as follows:

[0039]

[0040]

[0041] According to one embodiment of this application, a key controller PKE BS Includes a first microcontroller and a high-frequency receiver and a low-frequency transmitter respectively connected to the first microcontroller; remote key PKE T Includes a second microcontroller and a high-frequency transmitter and a low-frequency receiver respectively connected to the second microcontroller, and a key controller PKE. BS The first microcontroller transmits a low-frequency signal to the remote key PKE. T The low-frequency receiver sends a low-frequency signal to wake up the remote key PKE. T PKE remote key T Upon receiving the low-frequency signal, the second microcontroller authenticates the signal and sends the authentication response to the key controller PKE via a high-frequency transmitter. BS The high-frequency receiver. Among them, the key controller PKE BS and remote key PKE T The existing smart key system PKE base station and transponder can be used. By adopting frequency division communication (low frequency transmission and high frequency reception), the low frequency signal has strong penetration to ensure wake-up reliability, and the high frequency signal transmits authentication data to improve response speed. The combination of the two optimizes the balance between power consumption and security.

[0042] It should be noted that the current smart key system PKE already has authentication capabilities, and after successful authentication, it can send control commands to the command execution mechanism (such as doors, windows, lights, and horns) to control the command execution mechanism to perform corresponding actions. Therefore, when applying this smart key system PKE to the power-on controller, only the output object of the PKE system control command is adjusted (such as changing the door and window controller to the vehicle controller, and the lights to indicator lights). That is, only the electrical connection relationship is improved, and there is no need to make substantial improvements to the software program of this application. This will not be elaborated here.

[0043] According to one embodiment of this application, the vehicle control unit (VCU) and the smart key system (PKE) are connected via a CAN bus. The CAN bus is a serial communication protocol widely used in automotive and industrial control fields, characterized by high real-time performance and reliability, strong anti-interference capabilities, and low cost.

[0044] According to one embodiment of this application, the ON-position power supply control module is an ON-position relay. The ON-position relay has the characteristics of high load capacity and fast response, which can ensure the stable switching of low-voltage circuits. At the same time, this application uses precise control through the vehicle controller (VCU) to avoid the risk of mechanical contact sticking of the relay.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A power-on control system for an electric all-terrain vehicle, characterized in that, This includes the power switch (SB), the smart key system (PKE), and the vehicle control unit (VCU). The power-on switch is used to send a switching electrical signal to the smart key system PKE; The smart key system PKE is electrically connected to the power switch SB, and is used to initiate vehicle identity authentication when the switch electrical signal is detected, and to send a wake-up signal to the vehicle controller VCU after successful vehicle identity authentication. The vehicle controller (VCU) is connected to the smart key system (PKE) signal. After receiving the wake-up signal, it sends an authentication request signal to the smart key system (PKE). After receiving the authentication feedback signal returned by the smart key system (PKE), it sends a drive signal to the ON position power supply control module to enable the vehicle to be powered on at low voltage.

2. The power-on control system for the electric all-terrain vehicle according to claim 1, characterized in that, The vehicle controller (VCU) is electrically connected to the power-on switch (SB) and is used to identify the switching signal emitted by the power-on switch (SB) and send a shutdown signal to the ON position power supply control module according to the switching signal, so that the vehicle is powered off at low voltage.

3. The power-on control system for the electric all-terrain vehicle according to claim 2, characterized in that, The smart key system PGE includes a key controller PGE. BS and remote key PKE T The key controller PKE BS Installed in the vehicle, for use with the remote key PKE T Send radio frequency signals to wake up the remote key PKE T The remote control key PKE T Used to receive key controller PKE BS It emits radio frequency signals and responds with authentication.

4. The power-on control system for the electric all-terrain vehicle according to claim 3, characterized in that, The power-on switch SB is a push-button switch; pin 1 of the power-on switch SB is connected to the key controller PKE. BS The GND pin is connected to ground, and pin 2 of the power-on switch SB is connected to the key controller PKE. BS The first drive pin is connected, and the 3rd pin of the power-on switch SB is connected to the key controller PKE. BS The second drive pin is connected, pin 4 of the power-on switch SB is connected to pin 1 of the power-on switch SB, and pin 6 of the power-on switch SB is connected to the start switch input terminal of the vehicle controller VCU and the key controller PKE, respectively. BS The power-on switch input pin is connected; when the power-on switch SB is pressed, pins 1, 4 and 6 of the power-on switch SB are connected to each other; when the power-on switch SB is released, pins 1 and 4 of the power-on switch SB are connected to each other.

5. The power-on control system for the electric all-terrain vehicle according to claim 4, characterized in that, The controller system also includes a signal indication unit that is electrically connected to the power-on switch SB and the smart key system PKE, respectively.

6. The power-on control system for the electric all-terrain vehicle according to claim 5, characterized in that, The signal indication unit includes a first indicator light D1, which is connected between pin 1 and pin 2 of the power-on switch SB.

7. The power-on control system for the electric all-terrain vehicle according to claim 6, characterized in that, The signal indication unit includes a second indicator light D2, which is connected between pins 3 and 4 of the power-on switch SB.

8. The power-on control system for the electric all-terrain vehicle according to claim 3, characterized in that, The key controller PKE BS It includes a first microcontroller and a high-frequency receiver and a low-frequency transmitter respectively connected to the first microcontroller; the remote control key PKE T It includes a second microcontroller and a high-frequency transmitter and a low-frequency receiver respectively connected to the second microcontroller; the key controller PKE BS The first microcontroller transmits a low-frequency signal to the remote key PKE. T The low-frequency receiver sends a low-frequency signal to wake up the remote key PKE. T The remote control key PKE T Upon receiving the low-frequency signal, the second microcontroller authenticates the signal and sends the authentication response to the key controller PKE via a high-frequency transmitter. BS High-frequency receiver.

9. The power-on control system for the electric all-terrain vehicle according to claim 1, characterized in that, The vehicle control unit (VCU) and the smart key system (PKE) are connected via a CAN bus.

10. The power-on control system for the electric all-terrain vehicle according to claim 1, characterized in that, The ON-position power supply control module is an ON-position relay.

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