Vehicle circuit system and whole vehicle

Abstract

The utility model discloses a vehicle circuit system and a whole vehicle. The vehicle circuit system comprises a battery, a communication module and a control module. The control module is connected with the battery; the communication module is connected with the control module; the control module is used for monitoring state information of the battery; the communication module is used for acquiring state information and outputting the state information to the cloud; the communication module and the control module are arranged on the same substrate. According to the technical scheme of the embodiment of the utility model, the communication module and the control module are highly integrated, so that the wire harness cost is saved, the problem of heating of the wire harness is solved, and a vehicle circuit system is safer and more reliable. The communication module is arranged to be connected with the control module, the communication module obtains the state information of the battery through the control module and outputs the state information to the cloud end, a user can obtain the vehicle information in time, power control over the vehicle and battery management are achieved, and the market competitiveness of manufacturers is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit systems, and particularly to a vehicle circuit system and a whole vehicle. Background Art

[0002] With the continuous development of technologies in the vehicle industry, two-wheel electric vehicles are increasingly widely used due to their convenience. However, in the existing market, there is a risk of vehicle fires caused by the misuse of chargers. The internal structure of the vehicle is scattered, and each component is discrete. The wiring harness cost is relatively high, and the wiring harness is prone to heat generation during use, which may cause a fire. Moreover, users cannot obtain vehicle information in a timely and accurate manner, reducing the market competitiveness of manufacturers. Summary of the Utility Model

[0003] The utility model provides a vehicle circuit system and a whole vehicle to optimize the whole vehicle system, integrate discrete components, save the wiring harness cost, solve the problem of wiring harness heat generation, enable users to obtain vehicle information in a timely manner, and improve the market competitiveness of manufacturers.

[0004] According to one aspect of the utility model, a vehicle circuit system is provided. The vehicle circuit system includes: a battery, a communication module, and a control module;

[0005] The control module is connected to the battery, and the communication module is connected to the control module;

[0006] The control module is used to monitor the status information of the battery;

[0007] The communication module is used to obtain the status information and output the status information to the cloud;

[0008] The communication module and the control module are arranged on the same substrate.

[0009] Optionally, the control module includes a battery management unit;

[0010] The battery management unit is used to monitor the status information of the battery; the battery management unit is connected to the communication module;

[0011] The communication module is further used to obtain the feedback information from the cloud to the battery management unit.

[0012] Optionally, the vehicle circuit system further includes a low-voltage power consumption module; the control module further includes a voltage conversion unit;

[0013] The input end of the voltage conversion unit is connected to the battery, and the output end of the voltage conversion unit is connected to the low-voltage power consumption module;

[0014] The voltage conversion unit is used to convert the output voltage of the battery and output a preset voltage to the low-voltage power consumption module.

[0015] Optionally, the control module further includes a microcontroller unit;

[0016] The input end of the microcontroller unit is connected to the battery management unit; the output end of the microcontroller unit is connected to the control end of the motor;

[0017] The microcontroller unit is further configured to control the state of the motor according to the state information of the battery.

[0018] Optionally, the low-voltage power consumption module includes an anti-theft unit;

[0019] The anti-theft unit is connected to the voltage conversion unit;

[0020] The voltage conversion unit is configured to output a first preset voltage to the anti-theft unit to supply power to the anti-theft unit.

[0021] Optionally, the low-voltage power consumption module further includes a display unit;

[0022] The display unit is connected to the voltage conversion unit;

[0023] The voltage conversion unit is further configured to output a second preset voltage to the display unit to supply power to the display unit.

[0024] Optionally, the vehicle circuit system further includes a switch; the switch is connected between the voltage conversion unit and the display unit;

[0025] The control module controls the working state of the display unit by controlling the opening and closing of the switch.

[0026] Optionally, the vehicle circuit system further includes a fuse device;

[0027] The fuse device is connected between the positive electrode of the battery and the control module.

[0028] According to another aspect of the present invention, there is provided a whole vehicle including the above vehicle circuit system.

[0029] The technical solution of the embodiment of the present invention provides a vehicle circuit system. By arranging the communication module and the control module on the same substrate, the communication module and the control module are highly integrated, which can realize independent control of all modules by a main control chip, integrate discrete components, save the cost of wire harnesses, solve the problem of wire harness heating, and make the vehicle circuit system safer and more reliable. By arranging the communication module to be connected to the control module, the communication module can obtain the state information of the battery through the control module and output the state information to the cloud, so that the user can obtain vehicle information in a timely manner, realize power control and battery management of the vehicle, and improve the market competitiveness of the manufacturer.

[0030] It should be understood that the content described in this part is not intended to identify the key or important features of the embodiments of the present utility model, nor is it used to limit the scope of the present utility model. Other features of the present utility model will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0032] Figure 1 is a schematic structural diagram of a vehicle circuit system provided according to an embodiment of the present utility model;

[0033] Figure 2 is a schematic diagram of the specific structure of a vehicle circuit system provided according to an embodiment of the present utility model;

[0034] Figure 3 is a schematic diagram of the battery management unit of a vehicle circuit system polling the charger provided according to an embodiment of the present utility model;

[0035] Figure 4 is a schematic diagram of the specific structure of another vehicle circuit system provided according to an embodiment of the present utility model;

[0036] Figure 5 is a schematic diagram of the specific structure of yet another vehicle circuit system provided according to an embodiment of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0037] In order to enable those skilled in the art to better understand the solutions of the present utility model, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only some of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0038] It should be noted that the terms "first", "second", etc. in the description, claims and above-mentioned drawings of the present utility model are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present utility model described here can be implemented in an order other than those illustrated or described here. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0039] Figure 1 is a schematic structural diagram of a vehicle circuit system provided according to an embodiment of the present utility model. As Figure 1 shown, the vehicle circuit system includes: a battery 11, a communication module 12 and a control module 13; the control module 13 is connected to the battery 11, and the communication module 12 is connected to the control module 13; the control module 13 is used to monitor the state information of the battery 11; the communication module 12 is used to obtain the state information and output the state information to the cloud; the communication module 12 and the control module 13 are arranged on the same substrate.

[0040] In the embodiment of the present utility model, the battery 11 can be a lead-acid battery for providing power. The communication module 12 can be a 4G Internet of Things (IoT) intelligent module. The control module 13 is connected to the battery 11, and the control module 13 monitors the state information of the battery 11. The state information of the battery 11 can include information such as the remaining power of the battery 11, whether there is a charging requirement, or whether the voltage of the battery 11 is stable. The communication module 12 is connected to the control module 13, and the communication module 12 can obtain the state information of the battery 11 through the control module 13 and output the state information to the cloud. The user can use a mobile terminal such as a mobile phone to download relevant software, bind the user information and vehicle information, and then can obtain the state information of the battery 11 and the specific condition of the vehicle in real time through the relevant software. Protect the battery 11 from being tampered with and accurately obtain the remaining power information of the battery 11.

[0041] The communication module 12 and the control module 13 are arranged on the same substrate, that is, the communication module 12 and the control module 13 are highly integrated. After internal integration, an independent control of all modules by a main control chip can be realized, further optimizing the cost. At the same time, the use of housing materials for each module can be saved, and the space of the whole vehicle can be saved. The battery 11 is directly connected to the integrated module, streamlining redundant circuit branches and making the vehicle circuit system safer and more reliable. When the vehicle power supply is in the on-line state, the communication module 12 can inform the user of the power information of the battery 11 in the vehicle in real time, so as to facilitate the user to judge whether it is necessary to replenish the power of the battery 11 in time. When the communication module 12 polls the status of the control module 13 as the main node, the user can more conveniently and intelligently monitor the static information and dynamic information of the vehicle, and realize the power control and battery management of the vehicle.

[0042] In the technical solution of the embodiment of the present invention, a vehicle circuit system is provided. By arranging the communication module and the control module on the same substrate and highly integrating the communication module and the control module, an independent control of all modules by a main control chip can be realized. The discrete components are integrated, saving the cost of the wire harness and solving the problem of wire harness heating, making the vehicle circuit system safer and more reliable. By arranging the communication module to be connected to the control module, the communication module can obtain the status information of the battery through the control module and output the status information to the cloud. The user can obtain the vehicle information in time, realize the power control and battery management of the vehicle, and improve the market competitiveness of the manufacturer.

[0043] Figure 2 It is a schematic structural diagram of a specific vehicle circuit system provided according to an embodiment of the present invention, as Figure 2 shown, the control module 13 includes a battery management unit 131; the battery management unit 131 is used to monitor the status information of the battery 11; the battery management unit 131 is connected to the communication module 12; the communication module 12 is further used to obtain the feedback information from the cloud to the battery management unit 131.

[0044] In the embodiment of the present invention, the control module 13 includes a battery management unit 131. The battery management unit 131 includes, but is not limited to, a Battery Management System (BMS). Applying the BMS can improve the utilization rate of the battery 11, prevent the battery 11 from being overcharged and overdischarged, extend the service life of the battery 11, and monitor the status information of the battery 11. The battery management unit 131 is connected to the communication module 12. The communication module 12 obtains the feedback information from the cloud and sends the feedback information to the battery management unit 131, so that the battery management unit 131 manages the status of the battery 11.

[0045] The BMS is connected to the battery 11. The BMS performs safety management and capacity calculation on the battery 11. Through the verification of battery characteristics, network binding is carried out. The parameters of the battery 11 include the voltage, capacity, and manufacturer information of the battery 11, etc. The battery 11 charges and discharges according to the communication rules, and the BMS upgrades the accurate power management of the battery 11 according to the communication rules. Figure 3 It is a schematic diagram of the battery management unit of a vehicle circuit system polling the charger according to an embodiment of the present invention. As Figure 2 and Figure 3 shown, the BMS is also connected to the charger 16. When the BMS is used as a master node and the charger 16 is used as a slave node, the BMS master node 10 polls the charger slave node 20 according to the Tms period. After the BMS sends the message, the charger 16 delays for T1ms and then starts to reply. When the charger 16 is connected to the BMS, the BMS needs to send an initial message request to the charger 16, and the charger 16 then responds to the BMS initial message. The following table shows the protocol format of the charger and the BMS, as shown in the following table:

[0046] Protocol format Header Identity code Data segment Check code Charger request message 55 A0 01 02 03 A1 BMS response message 55 B0 04 05 06 B1

[0047] When the charger 16 is connected, it sends a request message. When the BMS receives the request message according to the above table, it makes a response. It is necessary to make requests and responses according to the above table to charge normally, that is, normal charging can be carried out only after the header, identity code, data segment, and check code are all recognized and matched successfully. Bind the manufacturer charger information to solve the risk of vehicle fire caused by the misuse of chargers in the market.

[0048] The battery 11 supplies power to the BMS. The BMS is connected to the communication module 12. The communication module 12 obtains the feedback information from the cloud and sends the feedback information to the BMS so that the BMS can manage the state of the battery 11.

[0049] Based on the technical solution of the above-mentioned embodiment of the present invention, referring to Figure 2 the content shown, the vehicle circuit system further includes a low-voltage power consumption module 14; the control module 13 further includes a voltage conversion unit 132; the input end of the voltage conversion unit 132 is connected to the battery 11, and the output end of the voltage conversion unit 132 is connected to the low-voltage power consumption module 14; the voltage conversion unit 132 is used to convert the output voltage of the battery 11 and output a preset voltage to the low-voltage power consumption module 14.

[0050] In the embodiment of the present utility model, the voltage conversion unit 132 includes, but is not limited to, a DC / DC voltage converter. The low-voltage power consumption module 14 is connected to the voltage conversion unit 132, and the voltage conversion unit 132 converts the high voltage provided by the battery 11 into a voltage suitable for the operation of the low-voltage power consumption module 14. The preset voltage is a safety voltage pre-set for the operation of the low-voltage power consumption module 14. The voltage that the human body is allowed to pass through, that is, the human body safety voltage, is not higher than 36V. Exemplarily, the preset voltage can be set to be less than 36V.

[0051] The voltage conversion unit 132 is used to convert the output voltage of the battery 11 and output the preset voltage to the low-voltage power consumption module 14, achieving complete separation of high and low voltages in the vehicle. The voltage usage of the battery 11 is divided into two parts, namely, a high-power part and a low-voltage power consumption part below the safety voltage, preventing the risks of electric shock and short circuit for people.

[0052] In the embodiment of the present utility model, a scheme of controlling high and low voltages in two paths is designed. The part integrating the battery 11 and the control module 13 with the communication module 12 is set as the main circuit, and the part connecting the low-voltage power consumption module 14 and the voltage conversion unit 132 is set as the secondary circuit, dividing the voltage of the battery 11 into two parts to achieve complete separation of high and low voltages.

[0053] Figure 4 is a schematic structural diagram of another vehicle circuit system provided according to the embodiment of the present utility model. As Figure 4 shown, the control module 13 further includes a micro control unit 133; the input end of the micro control unit 133 is connected to the battery management unit 131; the output end of the micro control unit 133 is connected to the control end of the motor 15; the micro control unit 133 is further used to control the state of the motor 15 according to the state information of the battery 11.

[0054] In the embodiment of the present utility model, the micro control unit 133 is the (Micro Control Unit, MCU). The input end of the micro control unit 133 is connected to the battery management unit 131; the output end of the micro control unit 133 is connected to the control end of the motor 15. When the vehicle is not in the charging state and the ignition switch of the vehicle is turned on, the BMS supplies power to the MCU, and the MCU can drive the motor 15 to accelerate or decelerate through speed control.

[0055] The microcontroller unit 133, voltage conversion unit 132, battery management unit 131, and communication module 12 are integrated, enabling cloud management. The production information of the battery 11 is in the form of a tag code, which can be scanned by a mobile terminal, such as using a mobile phone to scan the code, and bound to the cloud background of the enterprise user to perform periodic management on the battery 11. The advantage of integrating the communication module 11 and the battery management unit 131 is that the communication module 12 can work independently for a long time without being interfered by the outside world. The communication module 12 is set as the communication master node to perform periodic status polling on the battery management unit 131 and submit user usage information. Exemplarily, the submitted information includes whether the battery 11 is in a charging state. Ensure that the battery 11 is in a safe time period when it is in the charging state, and at the same time, the communication module can disconnect the communication with the charger 16 to cut off the charging.

[0056] Integrating the microcontroller unit 133, voltage conversion unit 132, battery management unit 131, and communication module 12 can perform power domain control, battery management, and vehicle system management outside the secondary circuit on the vehicle. When the communication module 12 serves as the master node to perform status polling on each slave node, it is more convenient and intelligent to monitor the static and dynamic information of the vehicle. After internal integration, an independent control of all modules by a main control chip can be achieved, reducing costs and saving the use of the housing materials of each module, saving vehicle space. The main circuit is directly connected to the integrated module, streamlining the redundant branches and making the circuit safer and more reliable. When the vehicle is stationary for a long time and the vehicle power supply is cut off, the vehicle power consumption drains the power of the battery 11. When it is lower than the starting charging voltage of the battery 11, the battery is in a dormant state, and it cannot be reactivated with an ordinary charger. At this time, set the microcontroller unit 133 to the working mode of 3.3V. As long as the battery management unit 131 controls the microcontroller unit 133 to work, the charger 16 can be woken up through protocol means, and the charger 16 can be activated to start charging the battery 11, effectively activating the battery 11. When the vehicle power supply is turned on and in the online state, the communication module 12 can inform the user of the power information of the battery 11 in real time so as to replenish the power of the battery 11 in time. The protocol format for communication with the communication module 12 as the master node, the charger 16, the battery management unit 131, and the microcontroller unit 133 as slave nodes is shown in the following table:

[0057] Protocol format Header Identity code Data segment Check code Communication module 55 A0 01 02 03 04 A1 Charger request message 55 B0 05 06 07 B1 BMS response message 55 C0 08 09 10 C1 Microcontroller unit 55 D0 11 12 13 D1

[0058] In the embodiment of the present invention, the vehicle architecture is optimized, and a two-way control scheme is designed. The connection between the battery 11 and the integrated module is set as the main circuit, and the connection between the voltage conversion unit 132 and the low-voltage power consumption module 14 is the secondary circuit. At the same time, a communication protocol for safe charging is added to ensure that the battery is charged according to the regular design channels, improving the safety of user use.

[0059] Figure 5It is a schematic structural diagram of another vehicle circuit system according to an embodiment of the present invention. As Figure 5 shown, the low-voltage power consumption module 14 includes an anti-theft unit 141; the anti-theft unit 141 is connected to the voltage conversion unit 132; the voltage conversion unit 132 is configured to output a first preset voltage to the anti-theft unit 141 to supply power to the anti-theft unit 141.

[0060] In the embodiment of the present invention, the low-voltage power consumption module 14 includes an anti-theft unit 141, and the anti-theft unit 141 includes, but is not limited to, an anti-theft device. The first preset voltage is a voltage preset to enable the anti-theft unit to work properly. Exemplarily, the first preset voltage may be 36V. The anti-theft unit 141 is connected to the voltage conversion unit 132. After the BMS and the charger 16 communicate normally at the same time, the vehicle will enter the anti-theft mode. Whether in the charging state or the stationary state, the voltage conversion unit 132 can output a low voltage of 36V or less to supply power to the anti-theft device. To improve the safety of vehicle use, the voltage conversion unit 132 can output a voltage that is too high or too low. Exemplarily, it can be 12V. When the vehicle is in the charging state, it cannot be ridden, and the vehicle can only be ridden when there is no charging signal.

[0061] Based on the technical solution of the above-mentioned embodiment of the present invention, referring to Figure 5 the content shown, the low-voltage power consumption module 14 further includes a display unit 142; the display unit 142 is connected in parallel across the two ends of the anti-theft unit 141; the voltage conversion unit 132 is further configured to output a second preset voltage to the display unit 142 to supply power to the display unit 142.

[0062] In the embodiment of the present invention, the second preset voltage is a voltage preset to enable the display unit to work properly. Exemplarily, the second preset voltage is 12V. When the vehicle is not in the charging state, the voltage conversion unit 132 supplies power to the display unit 142. If the output of the voltage conversion unit 132 at this time is used as an enable signal to wake up the MCU, the vehicle can enter the sleep mode when it is stationary, making the vehicle more power-saving, the circuit more economical, and reducing the process cost.

[0063] Based on the technical solution of the above-mentioned embodiment of the present invention, referring to Figure 5 the content shown, the vehicle circuit system further includes a switch K1; the switch K1 is connected in series with the display unit 142; the control module 13 controls the working state of the display unit 142 by controlling the opening and closing of the switch K1.

[0064] In the embodiment of the present utility model, the switch K1 is connected in series with the display unit 142, and the control module 13 controls the working state of the display unit 142 by controlling the opening and closing of the switch K1. When the switch K1 is in the closed state, the display unit 142 is in the working state, and the voltage conversion unit 132 supplies power to the display unit 142; when the switch K1 is in the open state, the display unit 142 is in the non-working state, and at this time, it is not necessary for the voltage conversion unit 132 to supply power to the display unit 142.

[0065] Based on the technical solution of the above-mentioned embodiment of the utility model, referring to Figure 2 , Figure 4 or Figure 5 shown content, the vehicle circuit system further includes a protection device 17; the protection device 17 is connected between the positive electrode of the battery 11 and the control module 13.

[0066] In the embodiment of the present utility model, the protection device 17 includes but is not limited to a fuse or a leakage protector. The protection device 17 is connected between the positive electrode of the battery 11 and the control module 13. The battery 11 provides power, from the positive electrode through the protection device 17, to the control module 13 and the communication module 12, forming a main circuit.

[0067] According to another aspect of the present utility model, a whole vehicle is provided, including the above-mentioned vehicle circuit system.

[0068] In the embodiment of the present utility model, the whole vehicle can be a two-wheeled electric vehicle. Applying the vehicle circuit system of the above-mentioned embodiment, the overall structure of the two-wheeled electric vehicle is optimized, and a two-way control scheme is designed. The connection of the battery, the control module, and the communication module is set as the main circuit, and the rest of the low-voltage power-consuming parts are designed as the secondary circuit. At the same time, a communication protocol for safe charging is added to ensure that the battery is charged according to the regular design channels, improving the safety of the vehicle.

[0069] The technical solution of the embodiment of the present utility model designs a whole vehicle, including a vehicle circuit system. Through an integrated battery management scheme, it protects the battery from tampering and accurately displays status information such as the remaining battery power, optimizes the whole vehicle system, integrates discrete components, saves wiring harness costs, and the low voltage and low power consumption will reduce the wiring harness heating problem. At the same time, it reduces the cost of the whole vehicle and improves the market competitiveness of the manufacturer.

[0070] It should be understood that various forms of processes shown above can be used, reordering, adding or deleting steps. For example, the steps described in the present utility model can be executed in parallel, sequentially, or in a different order, as long as the desired results of the technical solution of the present utility model can be achieved. No limitation is made herein.

[0071] The above specific embodiments do not constitute a limitation on the protection scope of the present utility model. Those skilled in the art should understand that various modifications, combinations, sub - combinations and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A vehicle circuit system, characterized in that: include: Battery, communication module and control module; The control module is connected to the battery, and the communication module is connected to the control module; The control module is used to monitor the status information of the battery; The communication module is used to obtain the status information and output the status information to the cloud; The communication module and the control module are arranged on the same substrate.

2. The vehicle circuit system according to claim 1, characterized in that: The control module includes a battery management unit; The battery management unit is used to monitor the status information of the battery; the battery management unit is connected to the communication module; The communication module is also used to obtain feedback information from the cloud to the battery management unit.

3. The vehicle circuit system according to claim 1, characterized in that: It also includes a low-voltage power module; the control module also includes a voltage conversion unit; The input end of the voltage conversion unit is connected to the battery, and the output end of the voltage conversion unit is connected to the low-voltage power module; The voltage conversion unit is used to convert the output voltage of the battery and output a preset voltage to the low-voltage power module.

4. The vehicle circuit system according to claim 2, characterized in that: The control module also includes a micro control unit; The input end of the micro control unit is connected to the battery management unit; the output end of the micro control unit is connected to the control end of the motor; The micro control unit is also used to control the state of the motor according to the state information of the battery.

5. The vehicle circuit system according to claim 3, characterized in that: The low-voltage power module includes an anti-theft unit; The anti-theft unit is connected to the voltage conversion unit; The voltage conversion unit is used to output a first preset voltage to the anti-theft unit to supply power to the anti-theft unit.

6. The vehicle circuit system according to claim 5, characterized in that: The low-voltage power module also includes a display unit; The display unit is connected to the voltage conversion unit; The voltage conversion unit is further used to output a second preset voltage to the display unit to provide power for the display unit.

7. The vehicle circuit system according to claim 6, characterized in that: It also includes a switch; the switch is connected between the voltage conversion unit and the display unit; The control module controls the working state of the display unit by controlling the opening and closing of the switch.

8. The vehicle circuit system according to claim 1, characterized in that: Also includes safety devices; The safety device is connected between the positive electrode of the battery and the control module.

9. A complete vehicle, characterized in that: A vehicle circuit system comprising any one of claims 1-8.

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