CN116767015A - Electric motorcycle, dumping power-off method and control unit - Google Patents

Electric motorcycle, dumping power-off method and control unit Download PDF

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Publication number
CN116767015A
CN116767015A CN202210219520.6A CN202210219520A CN116767015A CN 116767015 A CN116767015 A CN 116767015A CN 202210219520 A CN202210219520 A CN 202210219520A CN 116767015 A CN116767015 A CN 116767015A
Authority
CN
China
Prior art keywords
motor
voltage
control unit
electric motorcycle
power battery
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202210219520.6A
Other languages
Chinese (zh)
Inventor
梁龙
唐高强
宋敬育
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang CFMOTO Power Co Ltd
Original Assignee
Zhejiang CFMOTO Power Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhejiang CFMOTO Power Co Ltd filed Critical Zhejiang CFMOTO Power Co Ltd
Priority to CN202210219520.6A priority Critical patent/CN116767015A/en
Publication of CN116767015A publication Critical patent/CN116767015A/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
    • B62J45/00—Electrical equipment arrangements specially adapted for use as accessories on cycles, not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
    • B62J45/00—Electrical equipment arrangements specially adapted for use as accessories on cycles, not otherwise provided for
    • B62J45/40—Sensor arrangements; Mounting thereof
    • B62J45/41—Sensor arrangements; Mounting thereof characterised by the type of sensor
    • B62J45/415—Inclination sensors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2200/00—Type of vehicles
    • B60L2200/22—Microcars, e.g. golf cars
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/54—Drive Train control parameters related to batteries

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

The embodiment of the invention provides an electric motorcycle, a dumping power-off method and a control unit. The electric motorcycle includes: the power battery, the motor and the control unit also comprise an angle detection module, wherein the angle detection module can detect the inclination angle of the electric motorcycle; the control unit is also connected with the motor, and can acquire the state of the motor, wherein the state of the motor comprises an idling state and a rotation state with load; and under the condition that the motor is in an idle state and the inclination angle is larger than a preset angle threshold value, the control unit controls the power battery to stop outputting voltage. Under the condition that the motor is in an idle state and the inclination angle is larger than a preset angle threshold value, the control unit controls the power battery to stop outputting voltage, so that false triggering probability of controlling the power battery to stop outputting voltage is reduced, and the safety of dumping power failure is improved.

Description

Electric motorcycle, dumping power-off method and control unit
[ field of technology ]
The invention relates to the technical field of motorcycles, in particular to an electric motorcycle, a toppling power-off method and a control unit.
[ background Art ]
In the related art, when the gyro sensor detects that the dumping angle is larger than a specific angle, the whole vehicle controller can output a high-voltage closing control signal to a battery management system (Battery Management System, BMS for short) controller according to the magnitude of the dumping angle in a certain time, and the BMS controller controls the high-voltage relay to break through outputting a closing instruction to the high-voltage relay, but the false triggering probability of the high-voltage relay to break is higher only according to the magnitude of the dumping angle, so that the safety of dumping breaking is reduced.
[ invention ]
In view of the above, the embodiment of the invention provides an electric motorcycle, a dumping power-off method and a control unit for improving the safety of dumping power-off.
In one aspect, an embodiment of the invention provides an electric motorcycle, which comprises a power battery, a motor and a control unit, wherein the electric motorcycle further comprises an angle detection module, the angle detection module can detect the inclination angle of the electric motorcycle, the control unit is connected with the angle detection module, and the control unit can acquire the inclination angle of the electric motorcycle through the angle detection module; the control unit is also connected with the motor, and can acquire the state of the motor, wherein the state of the motor comprises an idling state and a rotation state with load;
and under the condition that the motor is in an idle state and the inclination angle is larger than a preset angle threshold value, the control unit controls the power battery to stop outputting voltage.
Optionally, the control unit is specifically configured to control the power battery to stop outputting the voltage when the motor is in an idle state and the duration of the inclination angle being greater than a preset angle threshold is greater than a preset time threshold.
Optionally, the control unit comprises a whole vehicle controller and a Battery Management System (BMS) controller;
the whole vehicle controller is used for sending a high-voltage breaking signal to the BMS controller;
and the BMS controller is used for responding to the high-voltage interruption signal to control the power battery to stop outputting voltage.
Optionally, the electric motorcycle further comprises a high-voltage relay connected to the voltage output branch of the power battery,
the BMS controller is specifically used for responding to the high-voltage breaking signal and sending the high-voltage breaking signal to the high-voltage relay;
and the high-voltage relay is used for responding to the high-voltage breaking signal and cutting off a voltage output branch of the power battery.
Optionally, the electric motorcycle further comprises a direct current converter, and the direct current converter is connected with the voltage output end of the power battery; the high-voltage relay is specifically used for responding to the high-voltage breaking signal and cutting off a branch circuit between the power battery and the motor and a branch circuit between the power battery and the direct-current converter.
Optionally, the control unit is configured to obtain a state of the motor through a motor controller, where the motor controller is configured to monitor the state of the motor.
Optionally, the angle detection module comprises a gyroscope sensor.
Optionally, the BMS controller controls on-off of the high-voltage relay through the high-low level.
On the other hand, the embodiment of the invention provides a dumping power-off method which is applied to an electric motorcycle and comprises the following steps:
acquiring the inclination angle of the electric motorcycle through an angle detection module on the electric motorcycle;
acquiring states of a motor of the electric motorcycle, wherein the states of the motor comprise an idling state and a rotation state with load;
and under the condition that the motor is in an idle state and the inclination angle is larger than a preset angle threshold value, controlling the power battery of the electric motorcycle to stop outputting voltage.
In another aspect, an embodiment of the present invention provides a control unit, including a memory and a processor, where the memory is configured to store information including program instructions, and the processor is configured to control execution of the program instructions, and the method is characterized in that the program instructions implement the steps of the dump power method when loaded and executed by the processor.
In the technical scheme of the dumping power-off method provided by the embodiment of the invention, the electric motorcycle comprises: the power battery, the motor and the control unit also comprise an angle detection module, wherein the angle detection module can detect the inclination angle of the electric motorcycle; the control unit is also connected with the motor, and can acquire the state of the motor, wherein the state of the motor comprises an idling state and a rotation state with load; and under the condition that the motor is in an idle state and the inclination angle is larger than a preset angle threshold value, the control unit controls the power battery to stop outputting voltage. Under the condition that the motor is in an idle state and the inclination angle is larger than a preset angle threshold value, the control unit controls the power battery to stop outputting voltage, so that false triggering probability of controlling the power battery to stop outputting voltage is reduced, and the safety of dumping power failure is improved.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of an electric motorcycle according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of another electric motorcycle according to an embodiment of the present invention;
FIG. 3 is a flowchart of a dumping power-off method according to an embodiment of the invention;
FIG. 4 is a flowchart of the control unit of FIG. 3 controlling the power battery of the electric motorcycle to stop outputting voltage;
fig. 5 is a flowchart illustrating a control of the BMS controller of fig. 4 to stop outputting a voltage of the power battery in response to a high-voltage interruption signal;
fig. 6 is a schematic diagram of a control unit according to an embodiment of the present invention.
[ detailed description ] of the invention
For a better understanding of the technical solution of the present invention, the following detailed description of the embodiments of the present invention refers to the accompanying drawings.
It should be understood that the described embodiments are merely some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in this application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be understood that the term "and/or" as used herein is merely one way of describing an association of associated objects, meaning that there may be three relationships, e.g., a and/or b, which may represent: the first and second cases exist separately, and the first and second cases exist separately. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.
An embodiment of the invention provides an electric motorcycle, fig. 1 is a schematic structural diagram of the electric motorcycle provided by the embodiment of the invention, fig. 2 is a schematic structural diagram of another electric motorcycle provided by the embodiment of the invention, as shown in fig. 1 and fig. 2, a power battery 10, a control unit 20 and a motor 30, and further includes an angle detection module 40, where the control unit 20 is connected with the angle detection module 40.
The angle detection module 40 is used for detecting the inclination angle of the electric motorcycle.
The control unit 20 is used for acquiring the inclination angle of the electric motorcycle through the angle detection module 40, and is used for acquiring the state of the motor 30, wherein the state of the motor 30 comprises an idle state and a rotation state with load.
In the embodiment of the present invention, the control unit 20 is configured to obtain the inclination angle of the electric motorcycle through the angle signal sent by the angle detection module 40, so as to determine the high-voltage interruption of the electric motorcycle.
In the case where the motor 30 is in an idle state and the inclination angle is greater than the preset angle threshold, the control unit 20 is configured to control the power battery 10 to stop outputting the voltage.
In the embodiment of the present invention, in the case that the motor 30 is in the idle state and the duration of the inclination angle greater than the preset angle threshold is greater than the preset time threshold, the control unit 20 is further configured to control the power battery 10 to stop outputting the voltage.
In the embodiment of the present invention, the control unit 20 includes a whole vehicle controller 201 and a battery management system BMS controller 202, and the whole vehicle controller 201 is connected to the BMS controller 202.
The whole vehicle controller 201 is used to send a high-voltage off signal to the BMS controller 202.
The BMS controller 202 is configured to control the power battery 10 to stop outputting the voltage in response to the off-high voltage signal.
In the embodiment of the present invention, the whole vehicle controller 201 sends a control signal to the BMS controller 202, wherein the control signal includes a high-voltage off signal.
In the embodiment of the present invention, the BMS controller 202 is used to monitor the power battery 10 and may control the output voltage or the off voltage of the power battery 10.
In an embodiment of the present invention, the electric motorcycle further includes: the high-voltage relay 50, the high-voltage relay 50 connects to the voltage output branch of the power battery 10. The control unit 20 is connected to a high-voltage relay generator 50, the high-voltage relay 50 is connected to the power battery 10, and the high-voltage relay 50 is connected to the motor 30.
The BMS controller 202 is specifically configured to send a high-voltage off signal to the high-voltage relay 50 in response to the high-voltage off signal;
the high voltage relay 50 is used to cut off the voltage output branch of the power battery 10 in response to the high voltage interruption signal. In the embodiment of the present invention, the control unit 20 sends a control signal to the high-voltage relay 50 to control the high-voltage relay 50 to break the high voltage. Wherein the control signal comprises an off-high signal. The high-voltage relay 50 is an execution means for executing cutting off high voltage.
In the embodiment of the invention, the electric motorcycle further comprises a direct current converter 60, the direct current converter 60 is connected with the voltage output end of the power battery 10, the direct current converter 60 is connected with the high-voltage relay 50, and the direct current converter 60 is connected with the control unit 20.
The high-voltage relay 50 is specifically configured to cut off a branch between the power battery 10 and the motor 30 and a branch between the power battery 10 and the dc converter 60 in response to the high-voltage interruption signal.
In the embodiment of the invention, the electric motorcycle further comprises a motor controller 70, wherein the motor controller 70 is connected with the control unit 20, and the motor controller 70 is connected with the motor 30.
The control unit 20 is configured to obtain a state of the motor 30 through the motor controller 70, wherein the motor controller 70 is configured to monitor the state of the motor 30.
In the embodiment of the present invention, when the motor 30 idles, the motor controller 70 transmits an idle signal to the control unit 20 through a controller area network (Controller Area Network, CAN) signal, and when the control unit 20 is configured to acquire the idle signal through the motor controller 70, the state of the motor 30 is an idle state.
In an embodiment of the present invention, the angle detection module 40 includes a gyro sensor.
In the embodiment of the present invention, the BMS controller 202 controls the on-off of the high-voltage relay 50 through the high-low level.
In the embodiment of the present invention, the power battery 10 delivers high voltage to the high voltage relay 50, and the high voltage relay 50 delivers high voltage to the motor 30 to drive the motor to operate. The motor is a power output part of the electric motorcycle.
In the embodiment of the present invention, the power battery 10 transmits high voltage to the high-voltage relay 50, the high-voltage relay 50 transmits high voltage to the dc converter 60, and the dc converter 60 converts current and transmits the converted current to the control unit 20.
In the embodiment of the present invention, the electric motorcycle further includes a low-voltage battery 80, the low-voltage battery 80 is connected to the control unit 20, and the low-voltage battery 80 transmits a low voltage to the control unit 20 for the control unit 20 to operate.
In the embodiment of the present invention, after high-voltage relay 50 cuts off the high-voltage supplied to motor 30, low-voltage battery 80 can continue to supply the low-voltage to control unit 20, and control unit 20 can continue to operate.
As an alternative, the BMS controller 202 may be integrated on the power cell 10.
In the technical scheme of the dumping power-off method provided by the embodiment of the invention, the electric motorcycle comprises: the power battery, the motor and the control unit also comprise an angle detection module, wherein the angle detection module can detect the inclination angle of the electric motorcycle; the control unit is also connected with the motor, and can acquire the state of the motor, wherein the state of the motor comprises an idling state and a rotation state with load; and under the condition that the motor is in an idle state and the inclination angle is larger than a preset angle threshold value, the control unit controls the power battery to stop outputting voltage. Under the condition that the motor is in an idle state and the inclination angle is larger than a preset angle threshold value, the control unit controls the power battery to stop outputting voltage, so that false triggering probability of controlling the power battery to stop outputting voltage is reduced, and the safety of dumping power failure is improved.
The embodiment of the invention provides a dumping power-off method, and fig. 3 is a flowchart of the dumping power-off method provided by the embodiment of the invention, as shown in fig. 3, the method comprises the following steps:
step 102, the control unit obtains the inclination angle of the electric motorcycle through an angle detection module on the electric motorcycle.
In the embodiment of the invention, the angle detection module comprises a gyroscope sensor, and the gyroscope sensor can detect the inclination angle of the electric motorcycle.
In this step, the angle detection module transmits the inclination angle of the electric motorcycle to the control unit.
Step 104, the control unit acquires the states of a motor of the electric motorcycle, wherein the states of the motor comprise an idle state and a rotation state with load.
In the embodiment of the invention, the control unit is used for acquiring the state of the motor through the motor controller, wherein the motor controller is used for monitoring the state of the motor.
Specifically, the motor controller detects that the motor is idling and sends an idling signal to the control unit through the CAN, at which time the state of the motor is an idling state.
In the embodiment of the invention, when the vehicle is dumped, the inclination angle of the electric motorcycle is larger than the preset angle threshold value, and at the moment, the rotation speed of the motor is suddenly increased due to the fact that the wheels are separated from the ground, the motor controller detects the idle rotation of the motor and transmits an idle rotation signal to the controller unit, and the state of the motor is the idle rotation state.
And 106, under the condition that the motor is in an idle state and the inclination angle is larger than a preset angle threshold value, the control unit controls the power battery of the electric motorcycle to stop outputting voltage.
In the embodiment of the invention, when the motor is in an idle state and the inclination angle is larger than the preset angle threshold, the electric motorcycle is indicated to be in a toppling state.
As an alternative, the control unit controls the power battery to stop outputting the voltage in a case where the motor is in an idle state and the duration of the tilting angle being greater than the preset angle threshold is greater than the preset time threshold.
In the embodiment of the invention, the preset angle threshold and the preset time threshold can be set according to actual conditions.
In the embodiment of the present invention, the control unit includes a whole vehicle controller and a BMS controller, fig. 4 is a flowchart of the control unit in fig. 3 for controlling the power battery of the electric motorcycle to stop outputting voltage, as shown in fig. 4, step 106 includes:
step 1062, the vehicle control unit sends a high-voltage off signal to the BMS control unit.
Step 1064, the BMS controller controls the power battery to stop outputting the voltage in response to the off-high signal.
Specifically, the electric motorcycle further includes a high-voltage relay connected to a voltage output branch of the power battery, fig. 5 is a flowchart of the BMS controller in fig. 4 for controlling the power battery to stop outputting the voltage in response to the high-voltage interruption signal, as shown in fig. 5, step 1064 includes:
and step S1, the BMS controller responds to the high-voltage interruption signal and sends the high-voltage interruption signal to the high-voltage relay.
And S2, responding to the high-voltage breaking signal by the high-voltage relay, and cutting off a voltage output branch of the power battery.
The electric motorcycle further comprises a direct current converter, the direct current converter is connected with the voltage output end of the power battery, and the high-voltage relay is particularly used for responding to the high-voltage breaking signal and cutting off a branch between the power battery and the motor and a branch between the power battery and the direct current converter.
In this step, BMS controller opens the high-voltage loop through high low level control high-voltage relay, makes electric motorcycle be in the state of breaking high pressure to avoid the user to electrocute and cause the secondary injury.
In the technical scheme of the dumping power-off method provided by the embodiment of the invention, the electric motorcycle comprises: the power battery, the motor and the control unit also comprise an angle detection module, wherein the angle detection module can detect the inclination angle of the electric motorcycle; the control unit is also connected with the motor, and can acquire the state of the motor, wherein the state of the motor comprises an idling state and a rotation state with load; and under the condition that the motor is in an idle state and the inclination angle is larger than a preset angle threshold value, the control unit controls the power battery to stop outputting voltage. Under the condition that the motor is in an idle state and the inclination angle is larger than a preset angle threshold value, the control unit controls the power battery to stop outputting voltage, so that false triggering probability of controlling the power battery to stop outputting voltage is reduced, and the safety of dumping power failure is improved.
In the technical scheme provided by the embodiment of the invention, the dual redundancy detection scheme accords with the functional safety design, a high-precision gyroscope sensor is not needed, the function of the motor controller can be recycled, and the toppling state of the electric motorcycle can be rapidly judged.
The embodiment of the invention provides a control unit, which comprises a memory and a processor, wherein the memory is used for storing information comprising program instructions, the processor is used for controlling execution of the program instructions, and when the program instructions are loaded and executed by the processor, the steps of the embodiment of the dumping power-off method are realized, and the specific description can be seen in the embodiment of the dumping power-off method.
Fig. 6 is a schematic diagram of a control unit according to an embodiment of the present invention. As shown in fig. 6, the control unit 20 of this embodiment includes: the processor 21, the memory 22, and the computer program 23 stored in the memory 22 and capable of running on the processor 21, the computer program 23 when executed by the processor 21 implements the dumping power-off method in the embodiment, and is not repeated here. Alternatively, the computer program when executed by the processor 21 implements the functions of the embodiments applied to each model/unit in the dumping power device, and is not described herein in detail for avoiding repetition.
The control unit 20 includes, but is not limited to, a processor 21, a memory 22. It will be appreciated by those skilled in the art that fig. 6 is merely an example of the control unit 20 and is not limiting of the control unit 20, and may include more or fewer components than shown, or may combine certain components, or different components, e.g., the control unit 20 may also include input and output devices, network access devices, buses, etc.
The processor 21 may be a central processing unit (Central Processing Unit, CPU), but may also be other general purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), field-programmable gate arrays (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The memory 22 may be an internal storage unit of the control unit 20, such as a hard disk or a memory of the control unit 20. The memory 22 may also be an external storage device of the control unit 20, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card) or the like, which are provided on the control unit 20. Further, the memory 22 may also include both an internal memory unit and an external memory device of the control unit 20. The memory 22 is used to store computer programs and other programs and data required by the control unit 20. The memory 22 may also be used to temporarily store data that has been output or is to be output.
It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, which are not repeated herein.
In the several embodiments provided in the present invention, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the elements is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple elements or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in the embodiments of the present invention may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in hardware plus software functional units.
The integrated units implemented in the form of software functional units described above may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium, and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a Processor (Processor) to perform part of the steps of the methods according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather to enable any modification, equivalent replacement, improvement or the like to be made within the spirit and principles of the invention.

Claims (10)

1. The electric motorcycle comprises a power battery, a motor and a control unit, and is characterized by further comprising an angle detection module, wherein the angle detection module can detect the inclination angle of the electric motorcycle, the control unit is connected with the angle detection module, and the control unit can acquire the inclination angle of the electric motorcycle through the angle detection module; the control unit is also connected with the motor, and can acquire the state of the motor, wherein the state of the motor comprises an idling state and a rotation state with load;
and under the condition that the motor is in an idle state and the inclination angle is larger than a preset angle threshold value, the control unit controls the power battery to stop outputting voltage.
2. The electric motorcycle according to claim 1, wherein the control unit is specifically configured to control the power battery to stop outputting the voltage in a case where the motor is in an idle state and a duration of the tilting angle being greater than a preset angle threshold is greater than a preset time threshold.
3. The electric motorcycle of claim 2, wherein the control unit includes a complete vehicle controller and a battery management system BMS controller;
the whole vehicle controller is used for sending a high-voltage breaking signal to the BMS controller;
and the BMS controller is used for responding to the high-voltage interruption signal to control the power battery to stop outputting voltage.
4. The electric motorcycle according to claim 3, further comprising a high-voltage relay connected to a voltage output branch of the power battery,
the BMS controller is specifically used for responding to the high-voltage breaking signal and sending the high-voltage breaking signal to the high-voltage relay;
and the high-voltage relay is used for responding to the high-voltage breaking signal and cutting off a voltage output branch of the power battery.
5. The electric motorcycle of claim 4, further comprising a dc converter connected to a voltage output of the power cell; the high-voltage relay is specifically used for responding to the high-voltage breaking signal and cutting off a branch circuit between the power battery and the motor and a branch circuit between the power battery and the direct-current converter.
6. The electric motorcycle according to claim 1, wherein the control unit is configured to acquire a state of the motor through a motor controller, wherein the motor controller is configured to monitor the state of the motor.
7. The electric motorcycle of claim 1, wherein the angle detection module comprises a gyroscopic sensor.
8. The electric motorcycle of claim 4, wherein the BMS controller controls the on-off of the high voltage relay by a high-low level.
9. The dumping power-off method is applied to the electric motorcycle and is characterized by comprising the following steps of:
acquiring the inclination angle of the electric motorcycle through an angle detection module on the electric motorcycle;
acquiring states of a motor of the electric motorcycle, wherein the states of the motor comprise an idling state and a rotation state with load;
and under the condition that the motor is in an idle state and the inclination angle is larger than a preset angle threshold value, controlling the power battery of the electric motorcycle to stop outputting voltage.
10. A control unit comprising a memory for storing information including program instructions and a processor for controlling execution of the program instructions, wherein the program instructions, when loaded and executed by the processor, implement the steps of the dump power method of claim 9.
CN202210219520.6A 2022-03-08 2022-03-08 Electric motorcycle, dumping power-off method and control unit Pending CN116767015A (en)

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CN202210219520.6A CN116767015A (en) 2022-03-08 2022-03-08 Electric motorcycle, dumping power-off method and control unit

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CN202210219520.6A CN116767015A (en) 2022-03-08 2022-03-08 Electric motorcycle, dumping power-off method and control unit

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Publication Number Publication Date
CN116767015A true CN116767015A (en) 2023-09-19

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