A vehicle power control system and an electric two-wheeler

Abstract

This utility model discloses a vehicle power control system and an electric two-wheeler. The vehicle power control system includes a key switch, a battery module, a control switch, and a motor controller. The first signal input terminal of the battery module is connected to the key switch, and the power output terminal of the battery module is connected to the motor controller via a power line. The control switch is connected between the second signal input terminal of the battery module and the power line. The battery module controls the output of the power output terminal based on the signals from the first and second signal input terminals. The motor controller is connected to the key switch. This utility model solves the problems of arcing safety hazards and large space occupation associated with air switches. Using a control switch to transmit signals and control the power supply of the vehicle power control system improves system reliability. Eliminating the need for air switches and related mounting brackets increases space utilization and reduces vehicle weight and cost.

Description

Technical Field

[0001] This utility model relates to the field of power control technology, and in particular to a vehicle power control system and an electric two-wheeler. Background Technology

[0002] With the large-scale application of lithium-ion batteries in the field of two-wheeled electric vehicles, the battery working mode switching adopts a method of joint control by air switch and ACC signal. Closing the air switch enters the standby mode, and the ACC signal activates the working mode.

[0003] However, air switches may generate electric arcs during the opening or closing process, especially under high current conditions. Air switches require additional installation space and wiring, and need to be equipped with protective housings, which takes up a significant amount of space on compact electric two-wheelers. Utility Model Content

[0004] This utility model provides a vehicle power control system and an electric two-wheeler to solve the problems of arcing safety hazards and large space occupation of air switches in power systems.

[0005] According to one aspect of the present invention, a vehicle power control system is provided, comprising: a key switch, a battery module, a control switch, and a motor controller;

[0006] The first signal input terminal of the battery module is connected to the key switch, the power output terminal of the battery module is connected to the motor controller through a power line, and the control switch is connected between the second signal input terminal of the battery module and the power line.

[0007] The battery module is used to control the output of the power output terminal according to the signals from the first signal input terminal and the second signal input terminal;

[0008] The motor controller is connected to the key switch.

[0009] Optionally, the control switch includes a rocker switch, the first end of which is connected to the second signal input terminal of the battery module, and the second end of which is connected to the power line.

[0010] Optionally, the battery module includes a battery cell, a control unit, and a protection unit;

[0011] The first end of the battery cell is connected to the first end of the control unit, the output end of the battery cell is connected to the first end of the protection unit, the second end of the protection unit is connected to the motor controller via a power line, the second end of the control unit is connected to the key switch, and the third end of the control unit is connected to the control switch. The control unit is used to control the output of the output end of the battery cell according to the signals from the second and third ends; the protection unit is used to protect the battery cell.

[0012] Optionally, the vehicle power control system further includes: an electrical appliance switch, the first end of which is connected to the power output terminal of the battery module via the power line, and the second end of which is connected to an electrical appliance.

[0013] Optionally, the electrical appliances include at least vehicle lights, a dashboard, and a horn.

[0014] According to another aspect of the present invention, an electric two-wheeled vehicle is also provided, including the vehicle power control system described in any embodiment of the present invention.

[0015] Optionally, the battery module includes a power battery.

[0016] Optionally, the power battery is connected to the motor controller via a power cable.

[0017] Optionally, the electric two-wheeler further includes a motor connected to the motor controller.

[0018] Optionally, the electric two-wheeler further includes a Hall effect throttle, which is connected to the motor controller.

[0019] The technical solution of this utility model embodiment utilizes dual signal control via a key switch and a control switch. The control switch monitors the output status of the battery module's power output terminal; when disconnected, the battery module cuts off power. The key switch controls start and stop, and the motor controller is directly connected to the key switch for synchronized start and stop, preventing malfunctions after power disconnection. Furthermore, directly connecting the battery module's power output terminal to the motor controller via a power cable solves the problems of arcing safety hazards and large space occupation associated with air switches in related technologies. Using a control switch to transmit signals and control the power supply of the entire vehicle's power control system enhances system reliability. Eliminating the need for air switches and related mounting brackets improves space utilization and reduces vehicle weight and cost.

[0020] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of this utility model, nor is it intended to limit the scope of this utility model. Other features of this utility model will become readily apparent from the following description. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a structural schematic diagram of a vehicle power control device in related technologies;

[0023] Figure 2 This is a schematic diagram of the structure of a vehicle power control system provided in an embodiment of the present utility model;

[0024] Figure 3 This is a schematic diagram of the structure of another vehicle power control system provided in this embodiment of the utility model;

[0025] Figure 4 This is a schematic diagram of another vehicle power control system provided in this embodiment of the present invention;

[0026] Figure 5 This is a structural schematic diagram of an electric two-wheeled vehicle provided in an embodiment of the present utility model. Detailed Implementation

[0027] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0028] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the utility model described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0029] A vehicle power control device in related technologies, such as Figure 1 As shown, the battery operating modes include sleep mode, standby mode, and operating mode. The circuit breaker plays a crucial role in the switching of battery operating modes. When the circuit breaker is open, the battery enters sleep mode; when the circuit breaker is closed, the battery-motor controller circuit is connected, and the battery receives an ON signal, entering standby mode and waiting for the ACC signal to enter operating mode; when the battery receives the ACC signal, it enters operating mode. However, circuit breakers have some drawbacks. They require manual operation to close or open. Every time the vehicle is used, the user must close the circuit breaker to wake the battery into standby mode; after parking, to save power or for safety, the user may need to manually open the switch. During the opening or closing process, especially under high current conditions, the circuit breaker may generate an electric arc. Under heavy loads, such as the momentary connection of the motor controller circuit, the arc may pose a risk of electric shock, short circuit, or fire. Furthermore, circuit breakers require additional installation space and wiring, occupying a significant amount of space.

[0030] In view of this, Figure 2 This is a schematic diagram of a vehicle power control system provided by an embodiment of the present invention. This embodiment is applicable to power control scenarios for electric two-wheeled vehicles and can ensure efficient operation and safety performance of the vehicle under different usage scenarios. Figure 2 As shown, the vehicle power control system includes: key switch 101, battery module 102, control switch 103 and motor controller 104.

[0031] The first signal input terminal of the battery module 102 is connected to the key switch 101, and the power output terminal of the battery module 102 is connected to the motor controller 104 through the power line. The control switch 103 is connected between the second signal input terminal of the battery module 102 and the power line a. The battery module 102 is used to control the output of the power output terminal according to the signals of the first signal input terminal and the second signal input terminal. The motor controller 104 is connected to the key switch.

[0032] The key switch 101 controls the on / off state of the entire vehicle and is the main switch operated by the driver. The battery module 102 provides power and can be composed of multiple lithium-ion or lead-acid cells connected in series and / or parallel, providing the voltage and capacity required by the vehicle, such as 36V, 48V, 60V, 72V, etc. The first signal input terminal of the battery module 102 receives a signal from the key switch 101, which can be an ACC signal. The second signal input terminal of the battery module 102 receives a signal from the control switch 103, which can be an ON signal. The power output terminal of the battery module 102 determines whether to output power based on the signal states of the two signal input terminals. The power output terminal of the battery module 102 can output high-voltage DC power, such as 36V, 48V, 60V, 72V, etc. For example, when the key switch 101 is closed, an ACC signal can be transmitted to the first signal input terminal of the battery module 102. When the control switch 103 is closed, an ON signal can be transmitted to the second signal input terminal of the battery module 102. The battery module 102 can output DC power to the motor controller 104 based on the signal status of its two signal input terminals, thereby powering loads such as the drive motor. A control switch 103 is connected between the second signal input terminal of the battery module 102 and power line a. The motor controller 104 can receive electrical energy output from its power output terminal, thereby controlling the drive motor. Power line a can be used to transmit higher voltage DC power. Power line a connects the power output terminal of the battery module 102 and the motor controller 104, allowing higher voltage DC power to be transmitted to the motor controller 104.

[0033] Specifically, when the key switch 101 and control switch 103 are in the open circuit state, that is, when the ACC signal and ON signal are floating, the battery module 102 shuts off the output of its power output terminal according to the ACC signal and ON signal received by the first signal output terminal and the second signal input terminal, and the battery module 102 is in sleep mode, while the motor controller 104 is in the off state; when the key switch 101 is in the open circuit state and the control switch 103 is in the closed state, that is, when ON is high level and ACC is floating, the battery module 102 turns on the output of its power output terminal according to the ACC and ON signals received by the first signal output terminal and the second signal input terminal, and the battery module 102 is in standby mode, while the motor controller 104 is in the off state. When the key switch 101 and rocker switch 103 are closed, i.e., both ACC and ON are high level, the battery module 102 turns on the power output terminal according to the ACC signal and ON signal received by the first signal output terminal and the second signal input terminal. The battery module 102 and the motor controller 104 are both in working mode.

[0034] The technical solution of this utility model embodiment utilizes a key switch and a control switch. The control switch monitors the output status of the battery module's power output terminal; when disconnected, the battery module cuts off power. The key switch controls start and stop, and the motor controller is directly connected to the key switch, enabling synchronous start and stop and preventing malfunctions after power disconnection. Furthermore, directly connecting the battery module's power output terminal to the motor controller with a power cable solves the problems of arcing safety hazards and large space occupation associated with air switches. Using a control switch to transmit signals and control the power supply of the entire vehicle's power control system enhances system reliability. Eliminating the need for air switches and related mounting brackets improves space utilization and reduces vehicle weight and cost.

[0035] Figure 3 This is a schematic diagram of another vehicle power control system provided in this embodiment of the utility model, as shown below. Figure 3 As shown, the control switch 103 includes a rocker switch 1031. The first end of the rocker switch 1031 is connected to the second signal input end of the battery module 102, and the second end of the rocker switch 1031 is connected to the power line a.

[0036] The rocker switch 1031 can be a toggle switch with an "on / off" status indicator. The rocker switch 1031 is connected in series between the second signal input terminal of the battery module 102 and power line a. When the rocker switch 1031 is closed, the actual voltage state of the power line is transmitted to the second signal input terminal. When the rocker switch 1031 is open, the second signal input terminal is in the off state, and the battery module 102 disconnects its power output regardless of whether the key switch 101 is in the closed position. Using the rocker switch 1031 to transmit signals and control the on / off state of the vehicle's power control system improves system reliability.

[0037] In some optional embodiments of this utility model, reference continues to be made. Figure 3 The battery module 102 includes a battery cell 1021, a control unit 1022, and a protection unit 1023;

[0038] The first end of the battery cell 1021 is connected to the first end of the control unit 1022, the output end of the battery cell 1021 is connected to the first end of the protection unit 1023, the second end of the protection unit 1023 is connected to the motor controller 104 via power line a, the second end of the control unit 1022 is connected to the key switch 101, and the third end of the control unit 1022 is connected to the control switch 103. The control unit 1022 is used to control the output of the output end of the battery cell 1021 according to the signals from the second and third ends; the protection unit 1023 is used to protect the battery cell 1021.

[0039] In this battery module 1022, cell 1021 is the energy storage unit, such as a lithium-ion battery. Multiple cells 1021 are connected in series or parallel to form a battery pack, providing direct current. Control unit 1022 can receive signals from key switch 101 and control switch 103, and can also monitor battery status, such as voltage, temperature, and current. Control unit 1022 can control the output of cell 1021 based on external signals and internal status. Protection unit 1023 can protect cell 1021 from dangerous situations such as overcharging, over-discharging, overcurrent, and short circuit, ensuring the safety of cell 1021.

[0040] Specifically, the energy stored in cell 1021 is directly supplied to protection unit 1023 through its output terminal. Protection unit 1023 ensures the safety of the current flowing from battery module 102 and can cut off the circuit if necessary. The second terminal of protection unit 1023 is connected to motor controller 104 via power line a, so that the DC current from the output terminal of cell 1021 can be output from the second terminal of protection unit, flow through power line a, and power motor controller 104, thereby powering the drive motor. The second terminal of control unit 1022 receives a signal from key switch 101, i.e., the ACC signal. The third terminal of control unit 1022 receives a signal from control switch 103, i.e., the ON signal. The first terminal of control unit 1022 is connected to the first terminal of cell 1021, enabling control unit 1022 to monitor cell 1021 in real time. Control unit 1022 adjusts its settings based on the signals from key switch 101, control switch 103, and the internally monitored state of cell 1021. For example, when the key switch 101 is closed and the rocker switch is closed, the control unit 1022 controls the output terminal of the battery cell 1021 to output electrical energy to power the motor controller 104, thereby powering the drive motor.

[0041] Figure 4 This is a schematic diagram of another vehicle power control system provided in this embodiment of the present invention, as shown below. Figure 4 As shown, the vehicle power control system also includes an electrical appliance switch 105. The first end of the electrical appliance switch 105 is connected to the power output terminal of the battery module 102 via a power line b, and the second end of the electrical appliance switch 105 is connected to an electrical appliance 106.

[0042] The appliance switch 105 can be used to control the power supply to an appliance. The appliance can be a vehicle light or dashboard. The appliance's electrical energy is obtained by converting the DC power output from the battery module 102 (DC) to DC power (e.g., 12V) via a DC-DC converter. The first terminal of the appliance switch 105 is connected to the battery module 102's power output terminal via power line b. When the battery module 102 outputs electrical energy, the energy flows simultaneously through power lines a and b. The appliance switch 105 can independently turn the appliance on or off without affecting the operation of other loads.

[0043] In some optional embodiments of this utility model, the electrical appliances include at least vehicle lights, dashboard, and horn.

[0044] Among them, electrical appliances such as vehicle lights, dashboards, and horns require relatively low power supply voltages, such as 12V. The DC power output from the power output terminal of battery module 102 can be converted to step-down voltage by a DC-DC converter to supply power to the electrical appliances.

[0045] Figure 5 This is a structural schematic diagram of an electric two-wheeled vehicle provided in an embodiment of the present invention, as shown below. Figure 5 As shown, the electric two-wheeled vehicle 20 provided in this embodiment of the present invention includes the vehicle power control system described in any embodiment of the present invention, and has the corresponding functional modules and beneficial effects of the vehicle power control system.

[0046] In some optional embodiments of this invention, the battery module includes a power battery.

[0047] Power batteries provide the driving power for electric vehicles, such as electric cars, hybrid electric vehicles, plug-in hybrid electric vehicles, electric two-wheelers, and power tools. During charging, the power battery converts electrical energy into chemical energy for storage. When the vehicle is in motion, the stored chemical energy is converted back into electrical energy to drive the motor, providing the necessary power output for the vehicle's drive system. Power batteries can be lithium-ion batteries, lithium iron phosphate batteries, etc.

[0048] In some optional embodiments of this utility model, the power battery is connected to the motor controller via a power line.

[0049] The power battery is located at the bottom of the vehicle, while the motor controller is located at the front or rear. A power cable transmits electrical energy from the power battery to the motor controller, driving the electric two-wheeler. When the vehicle needs to move, the motor controller, based on the driver's input signals, draws electrical energy from the power battery and converts it into suitable current and voltage for motor operation, driving the motor to rotate and thus propelling the electric two-wheeler. The power battery and motor controller are connected via a power cable, ensuring a stable power transmission.

[0050] In some optional embodiments of this utility model, the electric two-wheeled vehicle further includes: a motor, which is connected to a motor controller.

[0051] The motor converts electrical energy into mechanical energy, driving the wheels to rotate and thus propelling the vehicle. The motor controller can adjust the motor's speed and torque based on the driver's input and the vehicle's driving status to ensure smooth vehicle operation.

[0052] In some optional embodiments of this utility model, the electric two-wheeled vehicle further includes a Hall effect throttle, which is connected to the motor controller.

[0053] A Hall effect throttle is a device used to control the speed of an electric two-wheeler. It is typically mounted on the handlebars for the rider to operate. By turning the throttle, the rider changes its angle, thereby controlling the motor's speed and ultimately the vehicle's speed. The Hall effect throttle is equipped with a Hall sensor that converts changes in the throttle angle into an electrical signal, which is then transmitted to the motor controller. The motor controller receives the electrical signal from the Hall effect throttle and, based on the signal's magnitude and changes, controls the motor's speed and torque, thus regulating the vehicle's speed.

[0054] It should be understood that the various forms of the process shown above can be used, with steps reordered, added, or deleted. For example, the steps described in this utility model can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution of this utility model can be achieved, and this is not limited herein.

[0055] The specific embodiments described above do not constitute a limitation on the scope of protection of this 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 principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A vehicle power supply control system characterized by comprising: include: Key switch, battery module, control switch, and motor controller; The first signal input terminal of the battery module is connected to the key switch, the power output terminal of the battery module is connected to the motor controller through a power line, and the control switch is connected between the second signal input terminal of the battery module and the power line. The battery module is used to control the output of the power output terminal according to the signals from the first signal input terminal and the second signal input terminal; The motor controller is connected to the key switch.

2. The vehicle power source control system according to claim 1, characterized by, The control switch includes a rocker switch, the first end of which is connected to the second signal input terminal of the battery module, and the second end of which is connected to the power line.

3. The vehicle power source control system according to claim 1, characterized by, The battery module includes battery cells, a control unit, and a protection unit; The first end of the battery cell is connected to the first end of the control unit, the output end of the battery cell is connected to the first end of the protection unit, the second end of the protection unit is connected to the motor controller via a power line, the second end of the control unit is connected to the key switch, and the third end of the control unit is connected to the control switch. The control unit is used to control the output of the output end of the battery cell according to the signals from the second and third ends; the protection unit is used to protect the battery cell.

4. The vehicle power source control system according to claim 1, characterized by Also includes: An electrical appliance switch, wherein the first end of the electrical appliance switch is connected to the power output terminal of the battery module via the power line, and the second end of the electrical appliance switch is connected to the electrical appliance.

5. The vehicle power source control system according to claim 4, characterized by The electrical appliances include at least headlights, dashboard, and horn.

6. An electric two-wheeled vehicle characterized by comprising: Includes the vehicle power control system as described in any one of claims 1-5.

7. The electric two-wheeled vehicle of claim 6, characterized in that, The battery module includes a power battery.

8. The electric two-wheeled vehicle of claim 7, characterized in that, The power battery is connected to the motor controller via a power cord.

9. The electric two-wheeled vehicle of claim 6, wherein, Also includes: An electric motor, which is connected to the motor controller.

10. The electric two-wheeled vehicle of claim 6, wherein, Also includes: A Hall effect throttle, which is connected to the motor controller.

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