Control system of electric motorcycle and electric motorcycle

Abstract

The utility model relates to a control system of an electric motorcycle and the electric motorcycle, and the system comprises a data processor which is used for sending a sampling instruction to a collection module, so that the collection module collects sampling data of elements in the electric motorcycle according to the sampling instruction, and sends the sampling data to the data processor; and the data processor is also used for receiving the sampling data of each element and processing the sampling data to generate a control instruction so as to control the electric motorcycle. The method has the effects of reducing the control cost and improving the data processing efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of electric motorcycles, and in particular to a control system of an electric motorcycle and an electric motorcycle. Background Art

[0002] At present, for high-voltage electric motorcycle products, the majority are still oil-to-electric electric motorcycles. The electrical architecture of the whole vehicle still continues the traditional distributed architecture. Each component needs to develop an independent electronic control unit (ECU) for control and data processing.

[0003] In related technologies, distributed ECUs are generally only responsible for the control and calculation of one component, so multiple ECUs are needed for data processing and vehicle information exchange based on wiring harnesses or controller area networks, which results in high control costs and slow response speeds. Utility Model Content

[0004] The present application is proposed to solve the above-mentioned problems. According to one aspect of the present application, a control system of an electric motorcycle is provided, and the system includes: a data processor, wherein the data processor is used to send sampling instructions to an acquisition module, so that the acquisition module acquires sampling data of components in the electric motorcycle according to the sampling instructions, and sends the sampling data to the data processor; the data processor is also used to receive the sampling data of each of the components, and generate control instructions after processing based on the sampling data, so as to control the electric motorcycle.

[0005] Exemplarily, the system further includes a communication module, and the acquisition module sends the sampled data to the data processor through the communication module.

[0006] Exemplarily, the communication module includes a communication harness, and the acquisition module includes a front-end analog sampling board, which is connected to the battery pack of the electric motorcycle to obtain battery data of the battery pack as the sampling data, and send it to the data processor via the communication harness, wherein the battery data includes at least voltage data and temperature data of the battery pack.

[0007] Exemplarily, the communication module includes a controller area network, the acquisition module includes a current sensor, the current sensor acquires the current of the component as the sampled data, and sends the sampled data to the data processor via the controller area network.

[0008] Exemplarily, the acquisition module also includes a charging port and a diagnostic port of the electric motorcycle, and the sampled data includes charging data and diagnostic data of the electric motorcycle. The charging port acquires the charging data and sends it to the data processor through the controller local area network, and the diagnostic port acquires the diagnostic data and sends it to the data processor through the controller local area network.

[0009] Exemplarily, the communication module includes a communication harness, and the acquisition module also includes a sampling sensor, which is connected to the element to collect the analog voltage value of the element as the sampling data and send it to the data processor through the communication harness.

[0010] Exemplarily, the acquisition module includes at least: a voltage sensor, a temperature sensor, a motor speed sensor, and a motor revolution sensor.

[0011] Exemplarily, the system further includes a mobile communication module, which is connected to the data processor to transfer data between the data processor and a terminal platform.

[0012] Exemplarily, the system also includes a power module, which is connected to a starting battery of the electric motorcycle. The starting battery is connected to a battery pack of the electric motorcycle via a DC-DC converter for charging. The starting battery can be connected to the power module on and off to power the power module; the data processor, the acquisition module and the drive control module are all connected to the power module to be powered by the power module.

[0013] Exemplarily, the system also includes a drive control module, which is electrically connected to the data processor and is used to receive the control instruction and control the element based on the control instruction. The drive control module is connected to the power module to supply power through the power module.

[0014] Exemplarily, the DC-DC converter is connectable and disconnectable to the power module via a backup line, and the backup line is suitable for being configured to be turned on to supply power to the power module when the startup battery is charged.

[0015] Exemplarily, the starting battery is connectable to the power module via a wake-up switch, wherein the wake-up switch is a key switch.

[0016] According to another aspect of the present application, an electric motorcycle is provided, and the electric motorcycle includes the above-mentioned electric motorcycle control system.

[0017] The control system of the electric motorcycle in the present application obtains the collected data of each component in the electric motorcycle through the collection module and sends it to the data processor for centralized processing. After centralized processing, corresponding control instructions are issued to control each component; the data is processed centrally by a single data processor, which reduces the arrangement of a large number of ECUs and their wiring harnesses, and does not require the ECUs to interact with each other. The solution of the present application has the effect of reducing control costs and improving data processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] By describing the embodiments of the present application in more detail in conjunction with the accompanying drawings, the above and other purposes, features and advantages of the present application will become more apparent. The accompanying drawings are used to provide a further understanding of the embodiments of the present application and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the present application and do not constitute a limitation of the present application. In the accompanying drawings, the same reference numerals generally represent the same components or steps.

[0019] Figure 1 A block diagram of an electric motorcycle system in the related art is shown.

[0020] Figure 2 A schematic diagram showing a control system of an electric motorcycle in an embodiment of the present application

[0021] Figure 3 A structural block diagram of a control system of an electric motorcycle in an embodiment of the present application is shown.

[0022] Figure 4 A circuit diagram of a power supply module in an embodiment of the present application is shown.

[0023] Figure 5 A schematic diagram of a communication module and a collection module in an embodiment of the present application is shown.

[0024] Figure 6 A schematic diagram of a drive control module in an embodiment of the present application is shown.

[0025] Figure 7 A schematic diagram of a 4G module in an embodiment of the present application is shown. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the present application more obvious, the example embodiments according to the present application will be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application, and it should be understood that the present application is not limited to the example embodiments described herein. Based on the embodiments of the present application described in the present application, all other embodiments obtained by those skilled in the art without creative work should fall within the scope of protection of the present application.

[0027] like Figure 1 As shown, it is a block diagram of the whole vehicle system of an electric motorcycle in the related technology. For the whole vehicle system of an electric motorcycle, it mainly includes: starting battery, instrument, DCDC, whole vehicle controller, AC charger, motor controller, motor, battery management system, battery pack, ABS (anti-lock braking system) controller. In each control element, the corresponding ECU is required to process the data, and multiple ECUs need to interact with each other, which will increase the cost. A large number of ECUs need to be configured with additional wiring harnesses for information transmission, which has low data processing efficiency and increases the control cost and space occupancy.

[0028] like Figure 2 As shown, the present application provides an electric motorcycle control system to address the above-mentioned problems, the system comprising: a data processor, the data processor is used to send sampling instructions to an acquisition module, so that the acquisition module acquires sampling data of components in the electric motorcycle according to the sampling instructions, and sends the sampling data to the data processor; the data processor is also used to receive the sampling data of each component, and generate control instructions based on the sampling data after processing, so as to control the electric motorcycle.

[0029] The control system of the electric motorcycle in the present application obtains the collected data of each component in the electric motorcycle through the collection module and sends it to the data processor for centralized processing. After centralized processing, corresponding control instructions are issued to control each component; the data is processed centrally by a single data processor, which reduces the arrangement of a large number of ECUs and their wiring harnesses, and does not require the ECUs to interact with each other. The solution of the present application has the effect of reducing control costs and improving data processing efficiency.

[0030] Exemplarily, the system further includes a drive control module, which is electrically connected to the data processor and is used to receive control instructions and control the components based on the control instructions.

[0031] like Figure 3 As shown, it is a block diagram of the control system in the embodiment of the present application. The control system is an integrated controller, and the data processor is illustratively an MCU microcontroller chip. In addition to the data processor, the control system also includes: a power module, a communication module, an acquisition module, a drive control module and a mobile communication module, wherein the mobile communication module is a 4G module, and the 4G module is electrically connected to the data processor. The data stored in the data processor can be transmitted to the terminal platform through the 4G module, or the various data required for the system software upgrade can be downloaded from the terminal platform through the 4G module. The various modules in the embodiment of the present application are described below in conjunction with the accompanying drawings.

[0032] like Figure 4As shown, the power module is used to provide power to the entire control system. The power module includes an input end and an output end. The input end inputs a stable 12V voltage. After conversion by the power module, voltages ranging from 3V to 12V are output from multiple output ends to power the data processor and other modules in the control system. Because the voltage required for each module to work is different, the power module is required to convert the voltage. The input end of the power module is powered by the battery pack carried in the electric motorcycle.

[0033] Exemplarily, the power module is connected to the starting battery of the electric motorcycle, the starting battery is connected to the input end of the power module to provide it with a voltage of 12V, the starting battery is connected to the battery pack of the electric motorcycle through a DC-DC converter (DCDC) for charging, and the starting battery can be connected to the power module on and off to power the power module; the data processor, the acquisition module and the drive control module are all connected to the power module to be powered by the power module. Among them, the starting battery can be connected to the input end of the power module on and off through the wake-up switch, and the wake-up switch includes but is not limited to the key switch. The key switch can be closed by turning the key, and the starting battery sends a wake-up signal to the power module and supplies power to the power module, so that the power module starts working. For the electric motorcycle in this application, the closing of the key switch also means the awakening of the entire vehicle, the starting battery and the power module participate in the work, and the data processor is ready to receive and process the sampled data.

[0034] The starting battery is a DC low-voltage battery. The starting battery is connected to the battery pack through DCDC. When the starting battery has sufficient power, it will provide a stable voltage of 12V to the power module. When the starting battery is low on power, the DC relay in the DCDC closes, and the battery pack charges the starting battery. The starting battery stops supplying power to the power module during the charging process. The DCDC is connected to a backup line, and is connected to the input end of the power module through the backup line to provide a backup 12V voltage to the power module, so that the power module can be powered smoothly. It should be noted that the backup line will only be turned on when the starting battery is charged, in order to avoid discharging the starting battery while charging and reducing its service life.

[0035] like Figure 5As shown, the control system in the embodiment of the present application also includes an acquisition module and a communication module, and the acquisition module is used to obtain the sampling data of each component, and then pass it to the data processor through the communication module. Among them, the communication module includes a communication harness and a controller area network (Controller Area Network, referred to as CAN), and the acquisition module includes a front-end analog sampling board, a current sensor, a charging port, a diagnostic port and other sensors. The different components in the acquisition module transmit data through different parts in the communication module. Exemplarily, the current sensor is a Hall current sensor, which can be connected to CAN for signal transmission to send current data to the data processor. Exemplarily, the communication module in the control system can be electrically connected to the power module to be powered by the power module so that the CAN can run smoothly, or connected to other power supplies (such as the low-voltage side battery of the electric motorcycle) for power supply, which can be configured according to actual conditions.

[0036] Exemplarily, the front-end analog sampling board is a circuit board for data collection, which can convert analog signals into digital signals for further processing. For the components in the electric motorcycle that need to collect a large amount of data, if a large number of sensors are used to collect various data respectively, and then the wiring harnesses are set separately to transmit the data, it will cause the wiring harness of the whole vehicle to be messy, heavy, and costly, and if the distance between the component and the data processor is far, it will further increase the cost and space occupancy. Therefore, for components that need to collect a large amount of data (such as battery packs), a front-end analog sampling board will be set, and the front-end analog sampling board will be set on the battery pack and electrically connected to the battery pack to collect the battery data of the battery pack (such as voltage data, temperature data, etc.), and the front-end analog sampling board will be used for centralized collection, and then the battery data will be sent to the data processor as sampling data through the communication harness. Because a large amount of data is collected through the front-end analog sampling board, it is only necessary to connect the front-end analog sampling board and the data processor through the communication harness, which can reduce the layout of the harness, reduce the cost and space occupancy. In some embodiments, matching wireless communication modules are provided on the front-end analog sampling board and the data processor, and the signals collected by the front-end analog sampling board can be directly transmitted to the data processor through the wireless communication module, thereby further reducing the redundant arrangement of the communication harness.

[0037] Exemplarily, the Hall current sensor, charging port, and diagnostic port in the acquisition module are used to realize data transmission between the data processor and the data processor via CAN. The Hall current sensor is used to collect current data in components (including but not limited to battery packs) and connect to the CAN bus to transfer the current data as sampled data to the data processor. The Hall current sensor can detect the magnetic field generated by the current passing through the conductor, thereby indirectly measuring the magnitude of the current. The current acquisition through the Hall current sensor has higher accuracy, faster response speed and good stability.

[0038] The charging port and diagnostic port in the electric motorcycle also communicate through CAN. On the one hand, the charging port obtains charging data and sends it to the data processor through the controller area network, and the diagnostic port obtains diagnostic data and sends it to the data processor through the controller area network, so as to realize the transmission of sampled data between the data processor and the data processor. On the other hand, the data processor can also realize the information exchange of charging data with the DC charging pile through CAN and the charging port. Similarly, the data processor can also exchange diagnostic data information with the diagnostic equipment through CAN and the diagnostic port, so as to realize the functions of fault detection, fault clearing and offline upgrade.

[0039] In addition, the acquisition module also includes other sensors, which are sampling sensors. The sampling sensor is connected to other components (such as motors and other components) to collect the analog voltage value of the component as sampling data and send it to the data processor through the communication harness. Based on the above content, the information transmission between the acquisition module and the data processor in this application is diverse and is not limited to hard-wired transmission. The best communication method can be configured according to the different acquisition modules to transmit the sampling data, and the layout of the harness can be reduced to achieve the effect of saving costs and reducing space occupancy. Exemplarily, other sensors include but are not limited to: voltage sensors, temperature sensors (wherein the voltage sensor and the temperature sensor are mainly for data collection of components outside the battery pack), motor speed sensors, and motor speed sensors.

[0040] like Figure 6 As shown, it is a schematic diagram of the drive control module in the embodiment of the present application. The drive control module in the embodiment of the present application includes various control elements, including a dashboard controller, a motor controller, a brake controller, controllers of various power devices, and the like. After receiving the control command, the control of various components is realized, such as controlling the high-voltage circuit of the battery pack, controlling the instrument to display the vehicle speed, fault and other information; controlling the motor rotation rate, controlling the braking depth of the brake, and driving the operation of the power devices: such as alarms, headlights, switch tubes, relays, etc., so that the electric motorcycle can run in a safe and stable state.

[0041] like Figure 7As shown, it is a schematic diagram of the 4G module in the embodiment of the present application. It can be used to replace the telematics box (T-BOX), exchange information with the data processor inside the controller, and send the data stored in the data processor to the terminal platform: such as manufacturers, users, national data centers, etc. through the intermediate medium signal tower. At the same time, it can also download the upgrade software package pushed by the terminal platform to realize the online upgrade function. Compared with the communication module mentioned above, the 4G module is mainly used for communication between the system and the outside, rather than communication within the vehicle.

[0042] The control system of the electric motorcycle in the present application obtains the collected data of each component in the electric motorcycle through the acquisition module and sends it to the data processor for centralized processing. After centralized processing, the corresponding control instructions are issued to enable the drive control module to execute; the data is processed centrally by a single data processor, which reduces the layout of a large number of ECUs and their wiring harnesses, and does not require ECUs to interact with each other. The scheme of the present application has the effect of reducing control costs and improving data processing efficiency. In addition, in the present application, different communication methods can be selected between the acquisition module and the data processor according to the situation, such as centralized acquisition through the front-end analog sampling board and then sent to the data processor through the wiring harness, or the sampling data is directly transmitted through the wiring harness or CAN, which can reduce the use of a part of the wiring harness, and further achieve the effect of reducing costs and space occupancy.

[0043] The embodiment of the present application also provides an electric motorcycle, which includes the control system of the electric motorcycle described above. The battery pack in the electric motorcycle supplies power to the power module through the DC-DC converter and the starting battery, thereby realizing the power supply of the entire control system. The control system performs data acquisition, data processing and drive control on the components in the electric motorcycle, so that the electric motorcycle can operate in a safe and stable state. The control system configured in the electric motorcycle obtains the collected data of each component in the electric motorcycle through the acquisition module and sends it to the data processor for centralized processing. After centralized processing, the corresponding control instructions are issued to enable the drive control module to execute; the centralized data processing by a single data processor reduces the layout of a large number of ECUs and their wiring harnesses, and does not require the ECUs to interact with each other, which has the effect of reducing control costs and improving data processing efficiency.

[0044] Although example embodiments have been described herein with reference to the accompanying drawings, it should be understood that the above example embodiments are merely exemplary and are not intended to limit the scope of the present application to this. A person of ordinary skill in the art may make various changes and modifications therein without departing from the scope and spirit of the present application. All such changes and modifications should be within the scope of the present application as required by the appended claims.

[0045] In the description provided herein, a large number of specific details are described. However, it is understood that the embodiments of the present application can be practiced without these specific details. In some instances, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this description.

[0046] Similarly, it should be understood that in order to streamline the present application and help understand one or more of the various inventive aspects, in the description of the exemplary embodiments of the present application, the various features of the present application are sometimes grouped together into a single embodiment, figure, or description thereof. However, the method of the present application should not be interpreted as reflecting the following intention: the claimed application requires more features than the features clearly stated in each claim. More specifically, as reflected in the corresponding claims, the inventive point is that the corresponding technical problem can be solved with features less than all the features of a single disclosed embodiment. Therefore, the claims following the specific embodiment are hereby explicitly incorporated into the specific embodiment, wherein each claim itself serves as a separate embodiment of the present application.

[0047] It will be understood by those skilled in the art that, except for mutually exclusive features, all features disclosed in this specification (including the accompanying claims, abstracts and drawings) and all processes or units of any method or device disclosed in this specification may be combined in any combination. Unless otherwise expressly stated, each feature disclosed in this specification (including the accompanying claims, abstracts and drawings) may be replaced by an alternative feature that provides the same, equivalent or similar purpose.

[0048] In addition, those skilled in the art will appreciate that, although some embodiments herein include certain features included in other embodiments but not other features, the combination of features of different embodiments is meant to be within the scope of the present application and form different embodiments. For example, in the claims, any one of the claimed embodiments may be used in any combination.

[0049] The above is only a specific implementation or description of a specific implementation of the present application, and the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. The protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A control system for an electric motorcycle, characterized in that: The system comprises: A data processor, the data processor is used to send a sampling instruction to the acquisition module, so that the acquisition module collects the sampling data of the components in the electric motorcycle according to the sampling instruction, and sends the sampling data to the data processor; The data processor is also used to receive the sampled data of each of the components, and generate control instructions based on the sampled data after processing, so as to control the electric motorcycle.

2. The system according to claim 1, characterized in that The system further comprises a communication module, and the acquisition module sends the sampled data to the data processor through the communication module.

3. The system according to claim 2, characterized in that The communication module includes a communication harness, and the acquisition module includes a front-end analog sampling board. The front-end analog sampling board is connected to the battery pack of the electric motorcycle to obtain battery data of the battery pack as the sampling data, and send it to the data processor through the communication harness, wherein the battery data at least includes voltage data and temperature data of the battery pack.

4. The system according to claim 2, characterized in that The communication module includes a controller area network, the acquisition module includes a current sensor, the current sensor acquires the current of the component as the sampled data, and sends the sampled data to the data processor via the controller area network.

5. The system according to claim 4, characterized in that The acquisition module also includes a charging port and a diagnostic port of the electric motorcycle. The sampled data includes charging data and diagnostic data of the electric motorcycle. The charging port acquires the charging data and sends it to the data processor via the controller local area network. The diagnostic port acquires the diagnostic data and sends it to the data processor via the controller local area network.

6. The system according to claim 2, characterized in that The communication module includes a communication harness, and the acquisition module also includes a sampling sensor. The sampling sensor is connected to the element to acquire the analog voltage value of the element as the sampling data and is sent to the data processor through the communication harness.

7. The system according to claim 6, characterized in that The acquisition module at least includes: a voltage sensor, a temperature sensor, a motor speed sensor, and a motor revolution sensor.

8. The system according to any one of claims 1 to 7, characterized in that: The system further comprises a mobile communication module, which is connected to the data processor to transfer data between the data processor and the terminal platform.

9. The system according to claim 1, characterized in that The system also includes a power module, which is connected to the starting battery of the electric motorcycle. The starting battery is connected to the battery pack of the electric motorcycle through a DC-DC converter for charging. The starting battery can be connected to the power module on and off to power the power module; the data processor and the acquisition module are both connected to the power module to be powered by the power module.

10. The system according to claim 9, characterized in that The system further includes a drive control module, which is electrically connected to the data processor and is used to receive the control instruction and control the element based on the control instruction. The drive control module is connected to the power module to supply power through the power module.

11. The system according to claim 9, characterized in that The DC-DC converter is connected to the power module in an on-off manner via a backup circuit, and the backup circuit is suitable for being configured to be turned on to supply power to the power module when the startup battery is charged.

12. The system according to claim 9, characterized in that The starting battery can be connected to the power module in an on-off manner via a wake-up switch, wherein the wake-up switch is a key switch.

13. An electric motorcycle, characterized in that: The electric motorcycle comprises the control system of the electric motorcycle according to any one of claims 1-12.

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