Circuit design method based on electric two-wheeled vehicle

Abstract

The invention discloses a circuit design method based on an electric two-wheeled vehicle, which belongs to the technical field of electric two-wheeled vehicles, and comprises the following steps of: determining a control component and each electrical component of the whole vehicle, dividing the control component and each electrical component into a front domain part and a rear domain part, and respectively arranging a front domain controller and a rear domain controller; the front domain controller controls the acousto-optic drive through the hard wire drive; the back-domain controller is connected with a TFT instrument, a vehicle body sensor, a power battery, an NFC key module, an intelligent light module and a motor controller through a CAN bus, the back-domain controller is connected with an acoustic / optical / electric driving module through hard wire driving, and the back-domain controller is connected with a TSP platform through a 4G communication module; the front domain controller is connected with the rear domain controller through a CAN bus; according to the circuit design method based on the electric two-wheeled vehicle, the whole vehicle control is divided into the two controllers in the front area and the rear area, efficient linkage control over devices in all the areas is achieved, and the wiring number and complexity are reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of electric two-wheeled vehicles, and in particular to a circuit design method based on an electric two-wheeled vehicle. Background Art

[0002] With the development of intelligent connectivity, the demand for connected two-wheeled vehicles is increasing, and more integrated vehicle control functions are being required. Traditional circuit control systems often adopt a centralized architecture, where a single controller manages all vehicle functions and components. This architecture has many drawbacks. On the one hand, as electric two-wheeled vehicles become more intelligent and functionally diverse, the wiring between the numerous components and the controller becomes complex, resulting in high wiring costs, large space requirements, and difficult line troubleshooting. On the other hand, centralized control limits the system's flexibility and scalability. When new functions or components are added, the entire circuit system often needs to be redesigned and reconfigured. Therefore, a new circuit design solution is urgently needed to address these issues and improve the overall performance of electric two-wheeled vehicles. Summary of the Invention

[0003] The purpose of the present invention is to provide a circuit design method based on an electric two-wheeled vehicle. By dividing the vehicle control into two controllers, the front and rear domains, efficient linkage control of devices near each area can be achieved, the number and complexity of wiring can be reduced, and the reliability, scalability and flexibility of the system can be improved.

[0004] To achieve the above object, the present invention provides a circuit design method based on an electric two-wheeled vehicle, comprising the following steps:

[0005] The control components and electrical components of the electric two-wheeled vehicle are clearly defined, and the vehicle is divided into a front domain part and a rear domain part. The front domain part is provided with a front domain controller, and the rear domain part is also provided with a rear domain controller;

[0006] The front domain controller controls the sound and light drive through hard-wired drive, which is used to directly drive the front lights (headlights, turn signals, etc.) and sound equipment (horn); the front domain controller is connected to the switch group through the CAN bus to receive switch signals for operations such as braking, accelerator, and steering.

[0007] The rear domain controller is installed at the rear of the vehicle, such as near the battery and motor.

[0008] The CAN bus is used to connect the rear domain controller to the TFT instrument to transmit vehicle speed, power, fault and other information for instrument display.

[0009] The vehicle body sensors such as gyroscopes are connected via the CAN bus to obtain data such as the vehicle's driving posture and speed.

[0010] Use hard wires to connect the sound / light / electronic control drive modules, and exchange signals through the CAN bus to control the relevant sound, light and electronic control functions of the rear of the vehicle.

[0011] Connect the power battery via CAN bus to monitor battery power, voltage, temperature and other parameters in real time to realize battery management function.

[0012] The NFC key module is connected via the CAN bus to realize identity recognition functions such as unlocking and starting the vehicle.

[0013] By connecting the intelligent lighting module via the CAN bus, the lighting can be automatically adjusted according to vehicle status, environment and other factors.

[0014] The motor controller is connected via the CAN bus, and the motor is connected using FOC vector control technology to achieve precise control of the motor speed and torque.

[0015] The back-end controller is connected to the TSP platform through the 4G communication module to realize remote data transmission and reception.

[0016] The front domain controller and the rear domain controller are connected via the CAN bus to achieve data communication.

[0017] Preferably, the front domain controller receives control switch signals from lighting and sound equipment to achieve precise control according to different operating instructions. At the same time, the front domain part has several sensors, and the front domain controller collects data from each sensor, processes the collected data, and sends it to the rear domain controller through the CAN bus, and displays it on the TFT instrument at the same time. The rear domain controller takes measures on the corresponding components according to the data transmitted by the front domain controller.

[0018] Preferably, the processing process of the front domain controller is as follows:

[0019] If the sensor output is an analog signal, the analog voltage V is converted into a digital value D through the analog-to-digital converter of the front domain controller. The formula is:

[0020]

[0021] Among them, V min To V max is the analog signal voltage range; m is the number of bits of resolution of the analog-to-digital converter;

[0022] The calculation formula for the vehicle linear speed is:

[0023]

[0024] Where r is the wheel radius; is the number of wheel rotations; T sis the sampling interval; N is the number of pulses; n is the number of pulses per revolution of the wheel;

[0025] The actual tilt angle calculation formula of the electric two-wheeled vehicle is:

[0026]

[0027] Among them, θ min to θ max is the angle range corresponding to the analog signal voltage range.

[0028] Preferably, the front domain controller and the rear domain controller communicate in real time through the CAN bus to achieve data sharing and collaborative control. In addition to the information exchange between the various components during the control process, the front domain controller and the rear domain controller exchange the overall status information of the vehicle during the vehicle startup and operation. The two conduct comprehensive analysis and judgment based on the status information, and coordinate adjustments to the components they control to ensure stable operation of the vehicle.

[0029] Preferably, both the front domain controller and the rear domain controller have built-in fault diagnosis modules to perform real-time fault monitoring and diagnosis on the components they control. When a component fault is detected, the fault diagnosis module performs graded processing according to the fault type and severity. For minor faults, the front domain controller sends the fault information to the display instrument via the communication bus to prompt the user to perform repairs; for serious faults, the rear domain controller takes protective measures and sends the fault information to the front domain controller and the display instrument via the communication bus, and also stores the fault information in the controller's memory.

[0030] Preferably, the implementation process of the front domain controller is as follows:

[0031] After the vehicle is powered on, the front domain controller performs a self-test, initializes the internal registers and communication interfaces, and establishes communication connections with the sound and light drive and switch groups;

[0032] Continuously monitor the switch group signal, and when there is a switch action, collect the signal and analyze it;

[0033] According to the analyzed switch signal, the sound and light driver is directly driven to perform the corresponding action;

[0034] The collected signals are sent to the back-end controller via the CAN bus for coordinated control.

[0035] Preferably, the implementation process of the post-domain controller is as follows:

[0036] After the vehicle is powered on, the rear domain controller performs a hardware self-test, initializes the communication interface, loads configuration parameters, and establishes communication links with various components;

[0037] Receives signals from the front domain controller, sends control instructions to the motor controller via the CAN bus, and uses the FOC vector control algorithm to adjust the motor's speed and torque. At the same time, it receives real-time feedback from the motor controller on the operating status to perform motor fault diagnosis and protection control.

[0038] The power battery parameters are collected periodically via the CAN bus, and charge and discharge control operations are performed according to the preset battery management strategy;

[0039] Receive signals from vehicle body sensors, analyze the vehicle's driving posture and motion status, and ensure vehicle driving stability;

[0040] Communicate with the NFC key module to identify the user, unlock and start the vehicle, and control the smart lighting module through the CAN bus;

[0041] Various status information of the vehicle is sent to the TFT instrument for display via the CAN bus, data is exchanged with the TSP platform via the 4G network, remote control instructions from the APP are received, and the real-time status of the vehicle is fed back to the APP.

[0042] Therefore, the present invention adopts the above-mentioned circuit design method based on an electric two-wheeled vehicle, which has the following beneficial effects:

[0043] (1) Through front and rear domain partitioning control, a large amount of cross-region wiring is reduced, which reduces wiring costs and difficulty, improves the utilization of vehicle interior space, and reduces the potential for line failures;

[0044] (2) The modular design of the front and rear domains allows for easy access to the corresponding domain controller when new functions or components are added, without requiring large-scale changes to the entire circuit system, facilitating the continuous upgrading and expansion of vehicle functions;

[0045] (3) The front and rear domain controllers communicate in real time via the CAN bus, enabling precise coordinated control of all vehicle components and improving the vehicle's handling performance, safety, and user experience.

[0046] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 The figure is a structural diagram of a circuit design method based on an electric two-wheeled vehicle according to the present invention. DETAILED DESCRIPTION

[0048] The following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort shall fall within the scope of protection of the present invention.

[0049] See also Figure 1 A circuit design method based on an electric two-wheeled vehicle comprises the following steps:

[0050] The control components and electrical components of the electric two-wheeled vehicle are clearly defined, and the vehicle is divided into a front domain part and a rear domain part. The front domain part is provided with a front domain controller, and the rear domain part is also provided with a rear domain controller;

[0051] The front domain controller controls the sound and light drive through hard-wired drive, which is used to directly drive the front lights (headlights, turn signals, etc.) and sound equipment (horn); the front domain controller is connected to the switch group through the CAN bus to receive switch signals for operations such as braking, accelerator, and steering.

[0052] The rear domain controller is installed at the rear of the vehicle, such as near the battery and motor.

[0053] The CAN bus is used to connect the rear domain controller to the TFT instrument to transmit vehicle speed, power, fault and other information for instrument display.

[0054] The vehicle body sensors such as gyroscopes are connected via the CAN bus to obtain data such as the vehicle's driving posture and speed.

[0055] Use hard wires to connect the sound / light / electronic control drive modules, and exchange signals through the CAN bus to control the relevant sound, light and electronic control functions of the rear of the vehicle.

[0056] Connect the power battery via CAN bus to monitor battery power, voltage, temperature and other parameters in real time to realize battery management function.

[0057] The NFC key module is connected via the CAN bus to realize identity recognition functions such as unlocking and starting the vehicle.

[0058] By connecting the intelligent lighting module via the CAN bus, the lighting can be automatically adjusted according to vehicle status, environment and other factors.

[0059] The motor controller is connected via the CAN bus, and the motor is connected using FOC vector control technology to achieve precise control of the motor speed and torque.

[0060] The back-end controller is connected to the TSP platform through the 4G communication module to realize remote data transmission and reception.

[0061] The front domain controller and the rear domain controller are connected via the CAN bus to achieve data communication.

[0062] In this embodiment, an electric two-wheeled vehicle is used as an example. When the vehicle is assembled, the front domain controller is installed at a suitable position at the front of the vehicle, and components such as the sound and light drive and the switch group are connected and configured; the rear domain controller is installed at the rear of the vehicle, and components such as the TFT instrument, gyroscope, power battery, and motor controller are connected and configured. At the same time, the communication connection between the front and rear domain controllers and various components is completed through the CAN bus.

[0063] When the vehicle starts, the front and rear domain controllers simultaneously power on and initialize, perform a self-test, and establish a CAN bus communication link. The front domain controller monitors the switch group signal in real time. When the user turns the light switch on the handlebar to turn on the headlights, the front domain controller drives the sound and light driver module via hardwired wiring to illuminate the headlights. When the user presses the brake switch, the front domain controller illuminates the front brake lights and transmits the brake signal to the rear domain controller via the CAN bus. Upon receiving the brake signal, the rear domain controller controls the motor controller to reduce the motor speed and illuminate the rear brake lights.

[0064] While the vehicle is in motion, the rear-domain controller collects real-time data on the battery's charge level and voltage. When it detects that the battery level is below a preset threshold, it transmits a low-battery signal via the CAN bus to the front-domain controller, which then controls the TFT instrument panel to display a low-battery message. Simultaneously, the rear-domain controller adjusts and optimizes the vehicle's driving state in real time based on vehicle attitude information from body sensors like the gyroscope and motor status information from the motor controller.

[0065] When the user uses the APP to remotely control the vehicle, the instructions are transmitted to the TSP platform via the 4G network. The TSP platform then sends the instructions to the rear-domain controller. The rear-domain controller performs corresponding operations according to the instructions (such as unlocking the vehicle, starting the motor, etc.) and feeds back the vehicle's current status information to the APP through the TSP platform.

[0066] Therefore, the present invention adopts the above-mentioned circuit design method based on an electric two-wheeled vehicle. By dividing the entire vehicle control into two controllers in the front and rear domains, efficient linkage control of devices near each area is achieved, the number and complexity of wiring are reduced, and the reliability, scalability and flexibility of the system are improved.

[0067] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit the same. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that they can still modify or replace the technical solutions of the present invention with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solutions to deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. A circuit design method based on an electric two-wheeled vehicle, characterized in that: The following steps are involved: The control components and electrical components of the electric two-wheeled vehicle are clearly defined, and the vehicle is divided into a front domain part and a rear domain part. The front domain part is provided with a front domain controller, and the rear domain part is also provided with a rear domain controller; The front domain controller controls the sound and light drive through hard-wired drive, which is used to directly drive the front lights and sound devices; The rear-domain controller is connected to the TFT instrument panel, body sensors, power battery, NFC key module, intelligent lighting module, and motor controller via the CAN bus. The rear-domain controller uses hard-wired drivers to connect to the sound / light / electric drive modules, and signals are exchanged via the CAN bus. The rear-domain controller is connected to the TSP platform via a 4G communication module. The front domain controller and the rear domain controller are connected via the CAN bus to achieve data communication.

2. The circuit design method based on an electric two-wheeled vehicle according to claim 1, characterized in that: The front domain controller receives control switch signals from lighting and sound equipment and implements precise control according to different operating instructions. At the same time, the front domain part has several sensors. The front domain controller collects data from each sensor, processes the collected data, and sends it to the rear domain controller through the CAN bus. The data is displayed on the TFT instrument at the same time. The rear domain controller takes measures on the corresponding components based on the data transmitted by the front domain controller.

3. A circuit design method based on an electric two-wheeled vehicle according to claim 2, characterized in that: The front domain controller processes the following: If the sensor output is an analog signal, the analog voltage V is converted into a digital value D through the analog-to-digital converter of the front domain controller. The formula is: Among them, V min To V max is the analog signal voltage range; m is the number of bits of resolution of the analog-to-digital converter; The calculation formula for the vehicle linear speed is: Where r is the wheel radius; is the number of wheel rotations; T s is the sampling interval; N is the number of pulses; n is the number of pulses per revolution of the wheel; The actual tilt angle calculation formula of the electric two-wheeled vehicle is: Among them, θ min to θ max is the angle range corresponding to the analog signal voltage range.

4. The circuit design method based on an electric two-wheeled vehicle according to claim 1, characterized in that: The front domain controller and the rear domain controller communicate in real time via the CAN bus to achieve data sharing and collaborative control. In addition to the information exchange between the various components during the control process, the front domain controller and the rear domain controller also exchange the vehicle's overall status information with each other during vehicle startup and operation. The two conduct comprehensive analysis and judgment based on the status information, and coordinate adjustments to the components they control to ensure stable operation of the vehicle.

5. The circuit design method based on an electric two-wheeled vehicle according to claim 1, characterized in that: Both the front and rear domain controllers have built-in fault diagnosis modules that monitor and diagnose faults in real time on the components they control. When a component fault is detected, the module performs a graded response based on the fault type and severity. For minor faults, the front domain controller sends the fault information to the display instrument via the communication bus, prompting the user to perform repairs. For serious faults, the rear domain controller takes protective measures and sends the fault information to the front domain controller and display instrument through the communication bus, and also stores the fault information in the controller's memory.

6. The circuit design method based on an electric two-wheeled vehicle according to claim 1, characterized in that: The implementation process of the front domain controller is as follows: After the vehicle is powered on, the front domain controller performs a self-test, initializes the internal registers and communication interfaces, and establishes communication connections with the sound and light drive and switch groups; Continuously monitor the switch group signal, and when there is a switch action, collect the signal and analyze it; According to the analyzed switch signal, the sound and light driver is directly driven to perform the corresponding action; The collected signals are sent to the back-end controller via the CAN bus for coordinated control.

7. The circuit design method based on an electric two-wheeled vehicle according to claim 1, characterized in that: The implementation process of the post-domain controller is as follows: After the vehicle is powered on, the rear domain controller performs a hardware self-test, initializes the communication interface, loads configuration parameters, and establishes communication links with various components; Receives signals from the front domain controller, sends control instructions to the motor controller via the CAN bus, and uses the FOC vector control algorithm to adjust the motor's speed and torque. At the same time, it receives real-time feedback from the motor controller on the operating status to perform motor fault diagnosis and protection control. The power battery parameters are collected periodically via the CAN bus, and charge and discharge control operations are performed according to the preset battery management strategy; Receive signals from vehicle body sensors, analyze the vehicle's driving posture and motion status, and ensure vehicle driving stability; Communicate with the NFC key module to identify the user, unlock and start the vehicle, and control the smart lighting module through the CAN bus; Various status information of the vehicle is sent to the TFT instrument for display via the CAN bus, data is exchanged with the TSP platform via the 4G network, remote control instructions from the APP are received, and the real-time status of the vehicle is fed back to the APP.

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