Control system of lead-acid battery and electric vehicle

Abstract

The utility model discloses a control system of a lead-acid battery and an electric vehicle. The control system comprises a charging control unit, a communication unit and a main control unit, the charging control unit is arranged on a connecting loop between the lead-acid battery and a charging insertion port of the lead-acid battery in series; the communication unit is connected with the main control unit and the charging insertion port, and the communication unit is used for communicating with charging equipment inserted into the charging insertion port; the main control unit is used for matching the charging equipment according to communication information between the communication unit and the charging insertion port; and the charging control unit is controlled to connect or disconnect the connection loop according to the matching result. According to the technical scheme of the utility model, the safety of the lead-acid battery in the charging process is improved, the problem that unmatched charging equipment supplies power to the lead-acid battery is effectively prevented, the safety problem caused by mismatching or unsafety of the charging equipment is avoided, and the safety and reliability of charging of the lead-acid battery are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lead-acid batteries, in particular to a control system of lead-acid batteries and an electric vehicle. Background Art

[0002] The power source of electric bicycles is mainly lithium batteries or lead-acid batteries. Considering the comprehensive cost and safety of the batteries in electric bicycles on the market, a battery management system is installed inside the lithium battery to monitor the battery's charge and discharge. However, due to the higher safety and cost considerations of lead-acid batteries, a battery management system is not installed inside the lead-acid battery.

[0003] With the popularity of electric bicycles, lead-acid battery electric bicycles have also exposed many electrical safety issues, among which the problem of burning caused by charging is particularly prominent. Some of the burning problems are caused by the use of non-matching chargers. The charger does not match the battery of the electric bicycle, and the lead-acid battery electric bicycle has no battery management system, which may cause excessive current or high voltage to cause safety hazards.

[0004] At present, the foolproof measures for electric bicycle chargers are relatively simple, mainly focusing on the shape of the charging interface. As long as the charger plug matches the interface of the vehicle, charging can be carried out. However, this simple structural foolproof measure has certain safety hazards, because relying solely on the physical match between the plug and the interface cannot completely ensure the safety of the charging process. Utility Model Content

[0005] The utility model provides a control system of a lead-acid battery and an electric vehicle, so as to solve the problem of poor safety of foolproof measures of an external charger and a lead-acid battery electric bicycle charging port in the prior art.

[0006] According to one aspect of the utility model, a control system for a lead-acid battery is provided, comprising:

[0007] Charging control unit, communication unit and main control unit;

[0008] The charging control unit is arranged in series on a connection loop between the lead-acid battery and the charging insertion port of the lead-acid battery;

[0009] The communication unit is connected to the main control unit and the charging insertion port, and the communication unit is used to communicate with the charging device inserted into the charging insertion port;

[0010] The main control unit is used to match the charging device according to the communication information between the communication unit and the charging insertion port; and control the charging control unit to connect or disconnect the connection circuit according to the matching result.

[0011] Optionally, the control system further includes a power calculation unit;

[0012] The power calculation unit is arranged in series on the connection loop between the lead-acid battery and the charging insertion port of the lead-acid battery and is electrically connected to the main control unit;

[0013] The power calculation unit is used to monitor the charging current and / or charging voltage of the charging device and transmit the charging current and / or charging voltage to the main control unit;

[0014] The main control unit is also used to control the charging control unit to disconnect the connection circuit when the charging current and / or charging voltage exceeds a preset threshold value.

[0015] Optionally, the main control unit is also electrically connected to a lead-acid battery;

[0016] The power calculation unit is also used to determine the charging power according to the charging current and / or the charging voltage;

[0017] The main control unit is also used to obtain the initial power of the lead-acid battery and determine the real-time power according to the initial power and the charging power; when the real-time power exceeds a preset power threshold, the charging control unit is controlled to disconnect the connection circuit.

[0018] Optionally, the main control unit is also used to determine the cruising range information of the electric vehicle based on the real-time power consumption.

[0019] Optionally, the control system further includes a charging detection unit;

[0020] The charging insertion port includes a detection signal sending end, the charging detection unit includes a detection signal receiving end and a charging permission signal sending end, the main control unit includes a charging permission signal receiving end, the detection signal sending end is electrically connected to the detection signal receiving end, and the charging permission signal sending end is electrically connected to the charging permission signal receiving end;

[0021] The main control unit is used to control the communication unit to communicate with the charging device inserted into the charging insertion port according to the charging permission signal received by the charging permission signal receiving end.

[0022] Optionally, the control system further includes a voltage-stabilized power supply and a power control unit;

[0023] The voltage-stabilized power supply is arranged in series on the connection loop between the lead-acid battery and the charging insertion port;

[0024] The voltage-stabilized power supply includes a power supply signal sending end and a power supply permission signal receiving end, the main control unit includes a power supply signal receiving end, the charging plug-in port includes a power supply detection signal sending end, and the power supply control unit includes a power supply permission signal sending end and a power supply detection signal receiving end;

[0025] The power supply signal sending end is electrically connected to the power supply signal receiving end; the power supply permission signal sending end is electrically connected to the power supply permission signal receiving end; the power supply detection signal sending end is electrically connected to the power supply detection signal receiving end; the power supply control unit controls the power supply permission signal sending end to send the power supply permission signal to the power supply permission signal receiving end according to the power supply detection signal received by the power supply detection signal receiving end.

[0026] According to another aspect of the present invention, an electric vehicle is provided, which includes a control system for a lead-acid battery; the control system also includes a power calculation unit;

[0027] Electric vehicles also include electric door lock switches and immobilizers;

[0028] The power calculation unit is arranged in series on the connection circuit between the lead-acid battery and the charging insertion port; and is also arranged in series on the connection circuit between the lead-acid battery and the anti-theft device;

[0029] The anti-theft device is arranged in series on the connection circuit between the lead-acid battery and the electric door lock switch;

[0030] The power calculation unit includes a power signal sending end, the main control unit includes a power signal receiving end, and the power signal sending end and the power signal receiving end are electrically connected;

[0031] The main control unit determines the power consumption information of the anti-theft device according to the power usage signal received by the power usage signal receiving end.

[0032] Optionally, the electric vehicle further comprises a motor;

[0033] The motor includes a wheel control signal receiving end, the main control unit includes a wheel control signal sending end and an anti-theft control signal receiving end, and the anti-theft device includes an anti-theft control signal sending end; the wheel control signal receiving end is electrically connected to the wheel control signal sending end, and the anti-theft control signal receiving end is electrically connected to the anti-theft control signal sending end;

[0034] The main control unit controls the wheel control signal sending end to send the wheel control signal to the motor according to the anti-theft control signal received by the anti-theft control signal receiving end.

[0035] Optionally, the electric vehicle further comprises a lighting control unit;

[0036] The electric door lock switch is arranged in series on the connection circuit between the light control unit and the lead-acid battery.

[0037] Optionally, the control system further includes a voltage-stabilized power supply and a power control unit; the voltage-stabilized power supply is arranged in series on a connection loop between the lead-acid battery and the charging plug-in port;

[0038] The voltage-stabilized power supply includes a power supply permission signal receiving end, and the power supply control unit includes a power supply permission signal sending end; the power supply permission signal sending end is electrically connected to the power supply permission signal receiving end;

[0039] The electric door lock switch is arranged in series between the positive electrode of the lead-acid battery and the power control unit; the power control unit controls the power supply permission signal sending end to send the power supply permission signal to the power supply permission signal receiving end according to the conduction signal of the electric door lock switch.

[0040] The technical solution of the embodiment of the utility model is to set a charging control unit between the lead-acid battery and the charging socket. When the charging device is connected to the charging socket, the communication unit communicates with the charging device and transmits the communication information to the main control unit. The main control unit matches the charging device according to the communication information, and controls the charging control unit to turn on or off the connection circuit according to the matching result. That is, when the main control unit determines that the information of the charging device is consistent with the charging information of the lead-acid battery through the matching result, the charging control unit is controlled to turn on the connection circuit between the lead-acid battery and the charging socket, thereby improving the safety of the lead-acid battery during the charging process, effectively preventing the problem of non-matching charging devices supplying power to the lead-acid battery, avoiding safety problems caused by mismatching or unsafe charging devices, and improving the safety and reliability of lead-acid battery charging.

[0041] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present utility model, nor are they intended 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

[0042] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0043] Figure 1 It is a connection diagram of a control system of a first lead-acid battery provided according to an embodiment of the utility model;

[0044] Figure 2 It is a connection diagram of a control system of a second lead-acid battery provided according to an embodiment of the utility model;

[0045] Figure 3 This is a connection diagram of a first electric vehicle provided according to an embodiment of the utility model;

[0046] Figure 4It is a connection diagram of a second electric vehicle provided according to an embodiment of the utility model. DETAILED DESCRIPTION

[0047] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0048] It should be noted that the terms "first", "second", etc. in the specification and claims of the present utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the utility model described herein can be implemented in an order other than those illustrated or described herein.

[0049] Lead-acid batteries in the prior art are often used in the field of electric tricycles or electric two-wheeled vehicles. Compared with lithium batteries, lead-acid batteries are safer. Lead-acid batteries are more widely used in electric two- and three-wheeled vehicles than lithium batteries. In addition, there is no battery management system in lead-acid batteries, which leads to a certain degree of safety hazards in the charging and discharging process of lead-acid batteries. With the popularization of electric tricycles and electric two-wheeled vehicles, many electrical safety problems have also been exposed, among which the problem of burning vehicles caused by charging is particularly prominent. Some of the burning problems are caused by the use of non-matching chargers. Since there is no battery management system inside the lead-acid battery, when using a non-matching charger, the lead-acid battery is more likely to cause a burn, thereby reducing the safety of the charging process.

[0050] Therefore, an embodiment of the utility model provides a control system of a lead-acid battery, which is applied to electric vehicles. The electric vehicle can be an electric two-wheeled vehicle, an electric three-wheeled vehicle, etc., and the embodiment of the present application does not limit this.

[0051] Figure 1 The connection diagram of the control system of the first lead-acid battery provided by the embodiment of the utility model. Figure 1 As shown, the control system includes:

[0052] Charging control unit 31, communication unit 321 and main control unit 32; It should be noted that the control system provided in this embodiment includes a controller of the electric two-wheeled vehicle, the main control unit 32 is a processing unit of the controller, and the charging control unit 31 and the communication unit 321 are integrated in the controller. In this embodiment and subsequent embodiments, the charging control unit 31, the communication unit 321 and the main control unit 32 are integrated in the controller as an example for explanation. Of course, the charging control unit 31 may not be integrated in the controller, but is set in the electrical control circuit of the electric two-wheeled vehicle, and its role and function are similar to that of the charging control unit 3 integrated in the controller.

[0053] The charging control unit 31 is arranged in series on the connection loop between the lead-acid battery 1 and the charging insertion port 2 of the lead-acid battery 1;

[0054] The communication unit 321 is connected to the main control unit 32 and the charging insertion port 2, and the communication unit 321 is used to communicate with the charging device inserted into the charging insertion port 2;

[0055] The main control unit 32 is used to match the charging device according to the communication information between the communication unit 321 and the charging socket 2; and control the charging control unit 31 to open or disconnect the connection circuit according to the matching result.

[0056] Among them, the charging socket 2 can be the charging socket 2 of the lead-acid battery 1, and the charging device charges the lead-acid battery 1 by plugging into the charging socket 2. The charging device provided in the embodiment of the present application can be a charger.

[0057] The charging control unit 31 is arranged on the connection circuit between the lead-acid battery 1 and the charging socket 2, and can be used to control the on / off connection circuit between the lead-acid battery 1 and the charging socket 2, thereby controlling whether the charging device charges the lead-acid battery 1. The communication unit 321 is electrically connected to the main control unit 32, and the communication unit 321 includes a communication information receiving terminal b, the main control unit 32 includes a charging control signal sending terminal c, and the charging control unit 31 includes a charging control signal sending terminal d. The connection between the communication unit 321 and the main control unit 32 and the communication information sending terminal a of the charging socket 2 can realize a communication handshake function.

[0058] Specifically, when the charging device is inserted into the charging socket 2, the communication information sending end a outputs the communication handshake data, i.e., the communication information, and the communication unit 321 sends the communication handshake data to the main control unit 32. The main control unit 32 determines whether the handshake is successful, i.e., whether the communication information matches the charging information of the lead-acid battery 1. If they match, the handshake is determined to be successful. The communication information can be the electrical parameter information and model parameter information of the charging device, and the communication information is transmitted to the main control unit 32. The main control unit 32 determines whether the communication information matches the charging information of the lead-acid battery 1 according to the communication information. If the communication information and the charging information do not match, the main control unit 32 does not perform the charging action and does not control the charging control unit 31 to be turned on. If the communication information and the charging information match, the charging control signal sending end c of the main control unit 32 sends the charging control signal to the charging control signal receiving end d, so that the charging control unit 31 is turned on, i.e., the connection circuit between the electrical socket 2 and the lead-acid battery 1 is turned on, and then the charging device can charge the lead-acid battery 1.

[0059] In some embodiments, the charging control unit 31 may be a circuit structure composed of transistors, relays or other electrical devices, and the embodiments of the utility model do not limit the specific types; the communication unit 321 uses K line, CAN line, 485 communication protocol or serial port communication to realize handshake transmission of communication information, and the embodiments of the utility model do not limit the specific types.

[0060] The technical solution of the embodiment of the utility model is to set a charging control unit between the lead-acid battery and the charging socket. When the charging device is connected to the charging socket, the communication unit communicates with the charging device and transmits the communication information to the main control unit. The main control unit matches the charging device according to the communication information, and controls the charging control unit to turn on or off the connection circuit according to the matching result. That is, when the main control unit determines that the information of the charging device is consistent with the charging information of the lead-acid battery through the matching result, the charging control unit is controlled to turn on the connection circuit between the lead-acid battery and the charging socket, thereby improving the safety of the lead-acid battery during the charging process, effectively preventing the problem of non-matching charging devices supplying power to the lead-acid battery, avoiding safety problems caused by mismatching or unsafe charging devices, and improving the safety and reliability of lead-acid battery charging.

[0061] Optional, Figure 2 : is a connection diagram of a control system of a second lead-acid battery provided according to an embodiment of the utility model, such as Figure 2 As shown, the control system further includes an electric quantity calculation unit 33. It should be noted that the electric quantity calculation unit 33 is integrated in the controller of the control system;

[0062] The power calculation unit 33 is arranged in series on the connection loop between the lead-acid battery 1 and the charging insertion port 2 of the lead-acid battery 1 and is electrically connected to the main control unit 32;

[0063] The power calculation unit 33 is used to monitor the charging current and / or charging voltage of the charging device, and transmit the charging current and / or charging voltage to the main control unit 32;

[0064] The main control unit 32 is further configured to control the charging control unit 31 to disconnect the connection circuit when the charging current and / or charging voltage exceeds a preset threshold.

[0065] Among them, the power calculation unit 33 can be used to collect the charging current and / or charging voltage on the connection circuit between the lead-acid battery 1 and the charging socket 2, and transmit the charging current and / or charging voltage to the main control unit 32. The main control unit can determine whether the charging current and / or charging voltage exceeds a preset threshold. When the preset threshold is exceeded, the main control unit 32 controls the charging control unit 31 to disconnect the connection circuit. This embodiment can monitor the charging current / charging voltage in the charging process in real time through the power calculation unit 33, thereby improving the safety of the charging process.

[0066] In some embodiments, the main control unit 32 is also electrically connected to the lead-acid battery 1;

[0067] The power calculation unit 33 is further used to determine the charging power according to the charging current and / or the charging voltage and input the charging power into the main control unit 32;

[0068] The main control unit 32 is also used to obtain the initial power of the lead-acid battery 1 and determine the real-time power according to the initial power and the charging power; when the real-time power exceeds the preset power threshold, the charging control unit 31 is controlled to disconnect the connection circuit.

[0069] The power calculation unit 33 may include a charging power sending terminal e, the lead-acid battery 1 may include an initial power sending terminal g, the main control unit 32 may include a charging power receiving terminal f and an initial power receiving terminal h, the charging power sending terminal e is electrically connected to the charging power receiving terminal f, and the initial power sending terminal g is electrically connected to the initial power receiving terminal h;

[0070] The main control unit 32 can be used to determine the real-time power of the lead-acid battery 1 according to the charging power received by the charging power receiving terminal f and the initial power received by the initial power receiving terminal h, and determine whether the real-time power exceeds the preset power threshold according to the real-time power.

[0071] The power calculation unit 33 is arranged in series on the connection loop between the lead-acid battery 1 and the charging plug-in port 2, and can determine the charging power of the lead-acid battery 1 by detecting the charging current and / or charging voltage on the circuit between the lead-acid battery 1 and the charging plug-in port 2, and output the charging power to the charging power receiving terminal f through the charging power sending terminal e. The main control unit 32 can also receive the initial power of the lead-acid battery 1 through the initial power receiving terminal h, determine the real-time power of the lead-acid battery 1 according to the charging power and the initial power, compare the real-time power with the preset power threshold, and control the charging control unit 31 to disconnect the connection loop when the real-time power exceeds the preset power threshold. For example, the preset power threshold is 90% charging capacity. When the real-time power is 89%, the main control unit 32 continues to control the charging control unit 31 to close and continue charging; when the real-time power is 91%, the main control unit controls the charging control unit 31 to disconnect the connection loop and stop charging.

[0072] In some embodiments, the main control unit 32 can also determine the cruising range information of the electric vehicle based on the real-time power. Exemplarily, after determining the cruising range information, the main control unit 32 of the electric vehicle can output the cruising range information to the display unit, and the display unit displays the cruising range information for the user to obtain. At the same time, it can also be determined whether the electric vehicle meets the requirements of the navigation destination based on the cruising range information and the navigation distance. The navigation distance can be obtained according to the user's destination requirements. If it does not meet the user's navigation destination requirements, the main control unit 32 can output an alarm message for the user to obtain, which ensures the convenience of use while further improving the reliability and safety of the electric vehicle.

[0073] The technical solution of the embodiment of the utility model is to set up a power calculation unit, through which the real-time charging current and / or charging voltage of the charging equipment can be obtained and the charging power can be determined according to the charging current and / or charging voltage, the real-time power of the lead-acid battery can be determined according to the charging power and the initial power, and the connection circuit between the charging port and the lead-acid battery can be cut off in time when the real-time power exceeds a preset power threshold, thereby ensuring the reliability and safety of the control system during the charging process; in addition, the cruising range information can also be determined according to the real-time power, thereby improving the accuracy of the lead-acid battery power determination and the convenience of using the control system.

[0074] Optional, continue to refer to Figure 2 As shown, the control system further includes a charging detection unit 34;

[0075] The charging insertion port 2 includes a detection signal sending terminal j, the charging detection unit 34 includes a detection signal receiving terminal i and a charging permission signal sending terminal k, the main control unit 32 includes a charging permission signal receiving terminal l, the detection signal sending terminal j is electrically connected to the detection signal receiving terminal i, and the charging permission signal sending terminal k is electrically connected to the charging permission signal receiving terminal l;

[0076] The main control unit 32 is used to control the communication unit 321 to communicate with the charging device inserted into the charging insertion port 2 according to the charging permission signal received by the charging permission signal receiving terminal 1.

[0077] Among them, the charging detection unit 34 can be used to detect whether the socket of the charging device is connected to the charging socket 2. The charging detection unit 34 includes a detection signal receiving end i and a charging permission signal sending end k. When the detection signal sending end j is normally connected to the detection signal receiving end i, it means that the charging device is normally connected to the charging socket 2 at this time. The charging detection unit 34 outputs a charging permission signal to the main control unit 32.

[0078] Among them, the main control unit 32 receives the charging permission signal, which indicates that the connection between the charging port 2 and the charging device is complete. When the charging device is connected, the main control unit 32 controls the communication unit 321 to communicate with the charging device inserted into the charging port 2, so that the communication unit 321 transmits the communication information to the main control unit 32 for information matching, and then the main control unit 32 further controls the charging control unit 31 to turn on or off the connection circuit according to the matching result.

[0079] The technical solution of the embodiment of the utility model is to set up a charging detection unit, and realize the connection detection between the charging socket and the charging device through the charging detection unit. When the charging socket and the charging device are connected, the communication unit is controlled to communicate with the charging device inserted into the charging socket and then judge whether the communication information matches, so as to realize the control of the lead-acid battery charging process. Such a setting introduces a more effective fool-proof technology, avoids the battery from being charged arbitrarily by a charging device that does not match the battery, reduces the frequency of charging accidents, and further enhances the safety of the control system, which helps to eliminate potential safety hazards of lead-acid batteries.

[0080] Optional, continue to refer to Figure 2 As shown, the control system also includes a voltage-stabilized power supply 351 and a power control unit 352;

[0081] The voltage-stabilized power supply 351 is arranged in series on the connection loop between the lead-acid battery 1 and the charging plug port 2;

[0082] The voltage-stabilized power supply 351 includes a power supply signal sending terminal m and a power supply permission signal receiving terminal o, the main control unit 32 includes a power supply signal receiving terminal n, the charging plug port 2 includes a power supply detection signal sending terminal j, and the power control unit 352 includes a power supply permission signal sending terminal p and a power supply detection signal receiving terminal i2;

[0083] The power supply signal sending terminal m is electrically connected to the power supply signal receiving terminal n; the power supply permission signal sending terminal p is electrically connected to the power supply permission signal receiving terminal o; the power supply detection signal sending terminal j is electrically connected to the power supply detection signal receiving terminal i2;

[0084] The power control unit 352 controls the power supply permission signal sending end p to send the power supply permission signal to the power supply permission signal receiving end o according to the power supply detection signal received by the power supply detection signal receiving end i2.

[0085] Among them, the voltage-stabilized power supply 351 can be used to power the main control unit 32. The voltage-stabilized power supply 351 is arranged in series on the connection loop between the lead-acid battery 1 and the charging port 2, so that the lead-acid battery 1 can power the voltage-stabilized power supply 351; the power supply signal sending end m is electrically connected to the power supply signal receiving end n, so that the voltage-stabilized power supply 351 can power the main control unit 32.

[0086] Among them, the power control unit 352 can be used to turn on or off the stabilized power supply 351. The charging socket 2 includes a power supply detection signal sending terminal j, and the power control unit 352 includes a power supply detection signal receiving terminal i2. The power supply detection signal sending terminal j is electrically connected to the power supply detection signal receiving terminal i2. When the charging socket 2 is connected to the charging device, the power supply detection signal sending terminal j sends a power supply detection signal to the power control unit 352. At this time, the power control unit 352 outputs a power supply permission signal to the stabilized power supply 351, and the stabilized power supply 351 starts to supply power to the main control module. It can be understood that if Figure 3 As shown in , i1 represents the power supply detection signal receiving end of the charging detection unit 34 , and i2 represents the power supply detection signal receiving end of the power control unit 352 .

[0087] It can be understood that in order to ensure the power consumption of the control system, when the charging device is not plugged into the charging port 2, the voltage-regulated power supply 351 does not supply power to the main control unit 32, and the main control unit 32 does not work, thereby reducing the power consumption of the control system; when the charging device is plugged into the charging port 2, the main control unit 32 needs to start control, so the voltage-regulated power supply 351 starts to supply power to the main control unit 32.

[0088] Figure 3 is a schematic diagram of the connection of a first electric vehicle provided according to an embodiment of the utility model, such as Figure 3 As shown, according to the same utility model concept, the utility model embodiment also provides an electric vehicle, which includes a control system of a lead-acid battery 1; the control system also includes a power calculation unit 33; the electric vehicle also includes: an electric door lock switch 36 and an anti-theft device 37;

[0089] The power calculation unit 33 is arranged in series on the connection circuit between the lead-acid battery 1 and the charging socket 2; and is also arranged in series on the connection circuit between the lead-acid battery 1 and the anti-theft device 37;

[0090] The anti-theft device 37 is arranged in series on the connection circuit between the lead-acid battery 1 and the electric door lock switch 36;

[0091] The power calculation unit 33 includes a power signal sending terminal q, and the main control unit 32 includes a power signal receiving terminal r, and the power signal sending terminal q and the power signal receiving terminal r are electrically connected;

[0092] The main control unit 32 determines the power consumption information of the anti-theft device 37 according to the power usage signal received by the power usage signal receiving terminal r.

[0093] Among them, the electric vehicle can be an electric two-wheeled vehicle, an electric three-wheeled vehicle, or an electric four-wheeled vehicle, and the embodiments of the present utility model do not limit this.

[0094] The electric door lock switch 36 can be the main switch of the control system. For example, in an electric two-wheeled vehicle, the electric door lock switch 36 can be the start switch of the electric two-wheeled vehicle, and is arranged between the positive electrode of the lead-acid battery 1 and the power control unit 352. The anti-theft device 37 can be used for the anti-theft of the control system. For example, in an electric vehicle, the anti-theft device 37 can control the rotation of the motor through the main control unit 32, thereby realizing the anti-theft function.

[0095] Specifically, the anti-theft device 37 is arranged in series on the connection loop between the lead-acid battery 1 and the electric door lock switch 36. When the electric door lock switch 36 is closed, the anti-theft device 37 is connected to the lead-acid battery 1, thereby starting the anti-theft device 37. The power calculation unit 33 is arranged in series on the connection loop between the lead-acid battery 1 and the anti-theft device 37, and the power signal sending end q is electrically connected to the power signal receiving end r. The power calculation unit 33 can obtain the power signal of the anti-theft device 37 and input the power signal into the main control unit 32. The main control unit 32 can determine the power consumption information of the anti-theft device 37. It can be understood that the power consumption information can represent the power consumption of the lead-acid battery 1, thereby more accurately calculating the real-time power of the lead-acid battery 1.

[0096] The control system in the embodiment of the utility model is arranged in the electric vehicle, which improves the safety of the electric vehicle during the charging process, effectively prevents the problem of a non-matching external charger supplying power to the lead-acid battery, avoids safety problems caused by a mismatched or unsafe external charger, improves the safety and reliability of lead-acid battery charging, and also helps to improve the safety standards and technical level of the entire electric vehicle, and protect the safety and rights of users.

[0097] Optionally, the electric vehicle further includes a motor 38;

[0098] The motor 38 includes a wheel control signal receiving terminal s, the main control unit 32 includes a wheel control signal sending terminal t and an anti-theft control signal receiving terminal v, and the anti-theft device 37 includes an anti-theft control signal sending terminal u; the wheel control signal receiving terminal s is electrically connected to the wheel control signal sending terminal t, and the anti-theft control signal receiving terminal v is electrically connected to the anti-theft control signal sending terminal u;

[0099] The main control unit 32 controls the wheel control signal sending end t to send the wheel control signal to the motor 38 according to the anti-theft control signal received by the anti-theft control signal receiving end v.

[0100] Among them, the motor 38 can play a driving role in the electric vehicle. The motor 38 is electrically connected to the wheel control signal sending end t of the main control unit 32 through the wheel control signal receiving end s, that is, the main control unit 32 can control the rotation of the motor 38.

[0101] Among them, the anti-theft control signal sending end u of the anti-theft device 37 and the anti-theft control signal receiving end v of the main control unit 32 are electrically connected. When the anti-theft device 37 is started, the anti-theft control signal is input to the main control unit 32 through the anti-theft control signal sending end u, so that the main control unit 32 outputs a wheel control signal to the motor 38, thereby limiting the rotation of the motor 38, thereby realizing the anti-theft function of the electric vehicle.

[0102] In some embodiments, the electric vehicle further includes a light control unit 39; the electric door lock switch 36 is arranged in series on the connection circuit between the light control unit 39 and the lead-acid battery 1. The light control unit 39 can be used to output information to the user, such as mileage information, power consumption information, etc. The electric door lock switch 36 is arranged in series on the connection circuit between the light control unit 39 and the lead-acid battery 1. When the electric door lock switch 36 is closed, the connection circuit between the light control unit 39 and the lead-acid battery 1 is connected, so that the lead-acid battery 1 can normally supply power to the light control unit 39, thereby realizing the normal operation of the electric vehicle.

[0103] The technical solution of the embodiment of the utility model realizes the activation of the anti-theft device and the acquisition of power consumption by arranging an electric door lock switch, an anti-theft device and a power calculation unit in an electric vehicle. At the same time, a motor is also arranged, and the anti-theft device limits the rotation of the motor according to the signal transmission between the motor, the main control unit and the anti-theft device, thereby realizing the anti-theft function and improving the functionality of the control system.

[0104] Optionally, the control system further includes a voltage-stabilized power supply 351 and a power control unit 352. Of course, the voltage-stabilized power supply 351 and the power control unit 352 may also be integrated in a controller of the control system; the voltage-stabilized power supply 351 is arranged in series on a connection loop between the lead-acid battery 1 and the charging port 2;

[0105] The voltage-stabilized power supply 351 includes a power supply permission signal receiving terminal o, and the power supply control unit 352 includes a power supply permission signal sending terminal p; the power supply permission signal sending terminal p is electrically connected to the power supply permission signal receiving terminal o;

[0106] The electric door lock switch 36 is arranged in series between the positive electrode of the lead-acid battery 1 and the power control unit 352; the power control unit 352 controls the power supply permission signal sending end p to send the power supply permission signal to the power supply permission signal receiving end o according to the conduction signal of the electric door lock switch 36. Among them, the electric door lock switch 36 can be the main switch of the control system, for example, in an electric two-wheeled vehicle, the electric door lock switch 36 can be the starting switch of the electric two-wheeled vehicle. The electric door lock switch 36 is arranged in series between the positive electrode of the lead-acid battery 1 and the power control unit 352, that is, the power control unit 352 is connected to the charging plug port 2 on the one hand, and is connected to the electric door lock switch 36 on the other hand. When the electric door lock switch 36 is turned on, it means that the lead-acid battery 1 is supplying power to the power load in the control system. At this time, in order to ensure the normal operation of the power load, the power control module also controls the voltage stabilized power supply 351 to supply power to the main control unit 32, so that the main control unit 32 can transmit the feedback signal normally.

[0107] The technical solution of the embodiment of the utility model is to set a voltage-stabilized power supply and a power control unit in the charging control unit, so that the power control module can determine whether to start the voltage-stabilized power supply according to the connection status of the charging port and the charging device, and can also determine whether to start the voltage-stabilized power supply according to the conduction status of the electric door lock switch, thereby ensuring that the main control unit works normally when the charging device is charging and can also work normally when the electric door lock switch is closed, thereby improving the stability and reliability of the control system.

[0108] Figure 4 is a connection diagram of a second electric vehicle provided according to an embodiment of the utility model, Figure 4 Another schematic connection method of an electric vehicle is illustrated. Figure 4 The electric vehicle includes a lead-acid battery 1, a charging socket 2, a charging control unit 31, a charging detection unit 34, a power control unit 352, a voltage-stabilized power supply 351, a communication unit 321, a main control unit 32, a power calculation unit 33, a lighting control unit 39, a motor 38 and an anti-theft device 37. The functions and effects implemented by the above-mentioned units or modules are as shown in the above-mentioned embodiments, and will not be repeated in this embodiment.

[0109] The above specific implementations do not constitute a limitation on the protection scope of the present utility model. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A control system for a lead-acid battery, characterized in that: include: Charging control unit, communication unit and main control unit; The charging control unit is arranged in series on a connection loop between the lead-acid battery and the charging insertion port of the lead-acid battery; The communication unit is connected to the main control unit and the charging insertion port, and the communication unit is used to communicate with the charging device inserted into the charging insertion port; The main control unit is used to match the charging device according to the communication information between the communication unit and the charging insertion port; and control the charging control unit to connect or disconnect the connection circuit according to the matching result.

2. The control system according to claim 1, characterized in that: The control system also includes a power calculation unit; The power calculation unit is arranged in series on the connection loop between the lead-acid battery and the charging insertion port of the lead-acid battery and is electrically connected to the main control unit; The power calculation unit is used to monitor the charging current and / or charging voltage of the charging device, and transmit the charging current and / or the charging voltage to the main control unit; The main control unit is further configured to control the charging control unit to disconnect the connection circuit when the charging current and / or the charging voltage exceeds a preset threshold.

3. The control system according to claim 2, characterized in that: The main control unit is also electrically connected to the lead-acid battery; The power calculation unit is further used to determine the charging power according to the charging current and / or the charging voltage; The main control unit is also used to obtain the initial power of the lead-acid battery and determine the real-time power according to the initial power and the charging power; when the real-time power exceeds a preset power threshold, the charging control unit is controlled to disconnect the connection circuit.

4. The control system according to claim 3, characterized in that: The main control unit is also used to determine the cruising range information of the electric vehicle according to the real-time power quantity.

5. The control system according to claim 1, characterized in that: The control system also includes a charging detection unit; The charging insertion port includes a detection signal sending end, the charging detection unit includes a detection signal receiving end and a charging permission signal sending end, the main control unit includes a charging permission signal receiving end, the detection signal sending end is electrically connected to the detection signal receiving end, and the charging permission signal sending end is electrically connected to the charging permission signal receiving end; The main control unit is used to control the communication unit to communicate with the charging device inserted into the charging insertion port according to the charging permission signal received by the charging permission signal receiving end.

6. The control system according to claim 1, characterized in that: The control system also includes a voltage-stabilized power supply and a power control unit; The voltage-stabilized power supply is arranged in series on the connection loop between the lead-acid battery and the charging insertion port; The voltage-regulated power supply includes a power supply signal sending end and a power supply permission signal receiving end, the main control unit includes a power supply signal receiving end, the charging insertion port includes a power supply detection signal sending end, and the power supply control unit includes a power supply permission signal sending end and a power supply detection signal receiving end; The power supply signal sending end is electrically connected to the power supply signal receiving end; the power supply permission signal sending end is electrically connected to the power supply permission signal receiving end; The power supply detection signal sending end is electrically connected to the power supply detection signal receiving end; The power control unit controls the power supply permission signal sending end to send a power supply permission signal to the power supply permission signal receiving end according to the power supply detection signal received by the power supply detection signal receiving end.

7. An electric vehicle, characterized in that: A control system comprising any one of claims 1 to 6; the control system further comprising a power calculation unit; The electric vehicle also includes an electric door lock switch and an anti-theft device; The power calculation unit is arranged in series on the connection loop between the lead-acid battery and the charging insertion port; and is arranged in series on the connection loop between the lead-acid battery and the anti-theft device; The anti-theft device is arranged in series on the connection loop between the lead-acid battery and the electric door lock switch; The power calculation unit includes a power signal sending end, the main control unit includes a power signal receiving end, and the power signal sending end is electrically connected to the power signal receiving end; The main control unit determines the power consumption information of the anti-theft device according to the power usage signal received by the power usage signal receiving end.

8. The electric vehicle according to claim 7, characterized in that: The electric vehicle further comprises a motor; The motor includes a wheel control signal receiving end, the main control unit includes a wheel control signal sending end and an anti-theft control signal receiving end, and the anti-theft device includes an anti-theft control signal sending end; the wheel control signal receiving end is electrically connected to the wheel control signal sending end, and the anti-theft control signal receiving end is electrically connected to the anti-theft control signal sending end; The main control unit controls the wheel control signal sending end to send the wheel control signal to the motor according to the anti-theft control signal received by the anti-theft control signal receiving end.

9. The electric vehicle according to claim 7, characterized in that: The electric vehicle further comprises a lighting control unit; The electric door lock switch is arranged in series on a connection loop between the lighting control unit and the lead-acid battery.

10. The electric vehicle according to claim 7, characterized in that: The control system further comprises a voltage-stabilized power supply and a power control unit; the voltage-stabilized power supply is arranged in series on a connection loop between the lead-acid battery and the charging insertion port; The voltage-stabilized power supply includes a power supply permission signal receiving end, and the power supply control unit includes a power supply permission signal sending end; the power supply permission signal sending end is electrically connected to the power supply permission signal receiving end; The electric door lock switch is arranged in series between the positive electrode of the lead-acid battery and the power control unit; the power control unit controls the power supply permission signal sending end to send the power supply permission signal to the power supply permission signal receiving end according to the conduction signal of the electric door lock switch.

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