CN110707776A

CN110707776A - Battery, battery management system, mobile platform and electric equipment

Info

Publication number: CN110707776A
Application number: CN201911003491.4A
Authority: CN
Inventors: 郑大阳; 王文韬; 王雷; 罗昊; 田杰; 陈朝兵
Original assignee: Shenzhen Dajiang Innovations Technology Co Ltd
Current assignee: Shenzhen Dajiang Innovations Technology Co Ltd; SZ DJI Innovations Technology Co Ltd
Priority date: 2016-11-14
Filing date: 2016-11-14
Publication date: 2020-01-17
Also published as: CN107112779B; WO2018086143A1; CN107112779A

Abstract

A battery management system for managing voltage output of a battery, the battery management system comprising: the communication interface is used for being in communication connection with a power controller of a mobile platform, acquiring electrical parameters of a battery where the communication interface is located and transmitting the electrical parameters to the power controller of the mobile platform so that the power controller can generate corresponding different types of voltage output control signals according to the electrical parameters; the communication interface also receives different types of voltage output control signals sent by the power supply controller; and the battery controller is connected with the communication interface and used for determining the type of the voltage to be output by the battery according to the type of the voltage output control signal received by the communication interface and generating a corresponding voltage output instruction according to the voltage type so as to control the battery to output the corresponding voltage. The disclosure also relates to a battery, a mobile platform and an electric device.

Description

Battery, battery management system, mobile platform and electric equipment

The invention relates to a divisional application with the application number of 201680004470.2, the application date of 2016, 11 and 14, and the name of the divisional application is a battery, a battery management system, a mobile platform and electric equipment.

Technical Field

The invention relates to the technical field of safety management of an intelligent battery combination power supply system, in particular to a battery, a battery management system, a mobile platform and electric equipment.

Background

As the power of the electric equipment increases, lithium batteries are generally required to be connected in series and in parallel to form a relatively complex power supply system. In a multi-cell combined power supply system, the voltage and the amount of power may be different among the cells, and the combined use of the cells with different amounts of power and voltages usually introduces some safety and compatibility problems, such as:

1. when batteries with different voltages are used in parallel, the battery with higher voltage charges the battery with lower voltage with a large current, so that potential safety hazards and damage to a battery core are caused;

2. each battery is provided with an independent switch key and an independent electric quantity indicator, and when each battery is firstly opened and then combined to a power supply system, the connected instant often has large current impact, which can cause circuit damage;

3. the combined power supply system needs a main switch key to be started, and a signal line and a power supply line are added, so that more interface terminals are needed;

4. the combined power supply system has main and auxiliary batteries, if the batteries are designed differently, the production cost is increased, and a low-cost compatible method is better, and any battery can be used as a main battery and an auxiliary battery;

5. each intelligent battery has an independent electric quantity calculating system, the combined power supply system needs to calculate a total electric quantity, and when communication, contact and the like are abnormal, the combined power supply system needs to be capable of correctly estimating the electric quantity of the whole system.

Disclosure of Invention

In view of the above, it is desirable to provide a battery, a battery management system, a mobile platform and a power-consuming device to solve the above technical problems.

A battery management system for managing the voltage output of a battery, characterized by: the battery management system includes:

the communication interface is used for being in communication connection with a power controller of a mobile platform, acquiring electrical parameters of a battery where the communication interface is located and transmitting the electrical parameters to the power controller of the mobile platform so that the power controller can generate corresponding voltage output control signals according to the electrical parameters; the communication interface also receives a voltage output control signal sent by the power supply controller; and

the battery controller is connected with the communication interface and used for generating a corresponding voltage output instruction according to the voltage output control signal received by the communication interface so as to control the battery to output corresponding voltage;

the battery also comprises a power supply key, the battery controller is electrically connected with the power supply key, and the battery controller generates a safe voltage output instruction when receiving a pressing signal that the power supply key of the mobile platform or the power supply key of the battery is pressed so as to control the battery to output safe voltage.

A battery management system for managing voltage output of a battery, the battery management system comprising:

the voltage output control signal comprises a safe voltage output control signal, and the battery controller generates a safe voltage output instruction according to the safe voltage output control signal so as to control the battery to output a safe voltage;

and/or the voltage output control signal comprises an operation voltage output control signal, and the battery controller generates an operation voltage output instruction according to the operation voltage output control signal so as to control the battery to output the operation voltage.

In some embodiments, the battery controller includes a voltage output control circuit and the power management unit; the power supply management unit is respectively and electrically connected with the communication interface and the voltage output control circuit,

the power supply management unit is used for determining the type of voltage to be output by the battery according to the type of the voltage output control signal received by the communication interface;

and the voltage output control circuit generates a corresponding voltage output instruction according to the voltage type determined by the power management unit.

In some embodiments, the electrical parameter comprises at least one of: voltage value, residual capacity, total charge capacity, working current and service life of the battery.

In some embodiments, the voltage output control signal comprises a safety voltage output control signal, and the battery controller generates a safety voltage output command according to the safety voltage output control signal to control the battery to output a safety voltage;

the voltage output control signal comprises an operation voltage output control signal, and the battery controller generates an operation voltage output instruction according to the operation voltage output control signal so as to control the battery to output an operation voltage;

and/or the voltage output control signal comprises an output stopping operation voltage control signal, and the battery controller generates an output stopping operation voltage instruction according to the output stopping operation voltage control signal so as to control the battery to stop outputting the operation voltage.

In some embodiments, the safe voltage ranges from 3.3V to 17.8V;

or/and the value range of the operating voltage is 18V-26.3V.

In some embodiments, the battery management system further comprises a connection status detection interface for electrically connecting to the mobile platform and receiving an on-bit signal when electrically connecting to the mobile platform;

the battery controller is electrically connected with the connection state detection interface and detects the in-place signal on the connection state detection interface in real time;

wherein the battery controller generates an operation voltage stopping instruction when the on-site signal is not detected so as to control the battery to stop outputting the operation voltage,

and/or generating a safe voltage output instruction when the in-place signal is detected so as to control the battery to output safe voltage.

In some embodiments, the on-position signal is a direct current voltage signal or a pulse signal from the mobile platform.

In some embodiments, the battery further includes a power key, the battery controller is electrically connected to the power key, and the battery controller generates a safe voltage output command to control the battery to output a safe voltage when receiving a pressing signal that the power key of the mobile platform or the power key of the battery is pressed.

In some embodiments, the battery further includes a power key and an indication unit, the power controller of the mobile platform is connected to the power key and the indication unit, the electrical parameters at least include current remaining power and total charging power, the power controller of the mobile platform is configured to obtain the current remaining power and the total charging power of the battery, calculate a ratio between the current remaining power and the total charging power, and send the ratio to the indication unit for power display when detecting a pressing signal that the power key is pressed.

In some embodiments, the battery further includes an indication unit, and the communication interface further receives an alarm prompt signal sent by the power controller, and sends the alarm prompt signal to the indication unit for alarm prompt.

In some embodiments, the battery controller further generates an instruction to stop outputting the operating voltage when the communication interface receives a shutdown control signal for controlling the mobile platform to shutdown, so as to control the battery to stop outputting the operating voltage.

In some embodiments, the battery controller further generates a safe voltage output command to control the battery to output a safe voltage after controlling the battery to stop outputting the operating voltage.

In some embodiments, the battery controller further generates a shutdown instruction after controlling the battery to stop outputting the operating voltage, so as to control the battery to shut down and stop outputting any power supply voltage.

In some embodiments, the communication interface is configured to communicatively couple with a communication terminal of the mobile platform; and

and the battery controller is in communication connection with the power controller of the mobile platform through the communication interface and the communication terminal of the mobile platform.

In some embodiments, the battery further includes a battery cell, and the battery management system further includes:

the safety voltage output interface is electrically connected with a battery core of the battery, and is used for being electrically connected with a safety voltage receiving terminal of the mobile platform and transmitting safety voltage to the mobile platform through the safety voltage receiving terminal; and

and the operating voltage output interface is electrically connected with the battery core of the battery, and is used for being electrically connected with the operating voltage receiving terminal of the mobile platform and transmitting operating voltage to the mobile platform through the operating voltage receiving terminal.

In some embodiments, the communication interface actively acquires electrical parameters of the battery and actively sends the electrical parameters to the power controller of the mobile platform;

or the communication interface receives and responds to a signal which is sent by the power controller of the mobile platform and used for acquiring the electrical parameters of the battery, acquires the electrical parameters of the battery and sends the electrical parameters to the power controller of the mobile platform.

A battery, comprising:

a housing;

the battery cell is accommodated in the shell; and

the battery management system is arranged in the shell and electrically connected with the battery core, and is used for managing the voltage output of the battery, and the battery management system is characterized in that: the battery management system includes:

A battery, comprising:

a housing;

the battery cell is accommodated in the shell; and

In some embodiments, the safe voltage ranges from 3.3V to 17.8V;

or/and the value range of the operating voltage is 18V-26.3V.

In some embodiments, the battery controller generates an instruction to stop outputting the operating voltage when the communication interface receives a shutdown control signal for controlling the mobile platform to shutdown, so as to control the battery to stop outputting the operating voltage.

In some embodiments, the battery controller generates a safe voltage output command to control the battery to output a safe voltage after controlling the battery to stop outputting the operating voltage.

In some embodiments, the battery controller generates a shutdown command after controlling the battery to stop outputting the operating voltage, so as to control the battery to shutdown and stop outputting any power supply voltage.

the safety voltage output interface is electrically connected with a battery core of the battery, and is also used for being electrically connected with a safety voltage receiving terminal of the mobile platform and transmitting safety voltage to the mobile platform through the safety voltage receiving terminal; and

and the operating voltage output interface is electrically connected with the battery core of the battery, is also used for being electrically connected with an operating voltage receiving terminal of the mobile platform, and transmits operating voltage to the mobile platform through the operating voltage receiving terminal.

In some embodiments, the battery controller is configured to be normally powered at a safe voltage.

In some embodiments, the battery controller is configured to automatically output a safe voltage when electrically connected with the mobile platform.

A mobile platform for receiving power from a plurality of batteries, the mobile platform comprising:

the communication terminal is in communication connection with the plurality of batteries respectively, and acquires electrical parameters of the batteries; and

the power supply controller is connected with the communication terminal and used for determining the power supply mode of each battery according to the electrical parameters acquired by the communication terminal, generating corresponding voltage output control signals and sending the voltage output control signals to the corresponding batteries through the communication terminal so as to control the batteries to output corresponding voltages;

the mobile platform further comprises: and the power supply key is respectively connected with the plurality of batteries through the communication terminal.

the power supply controller is connected with the communication terminal and used for determining the power supply mode of each battery according to the electrical parameters acquired by the communication terminal, generating corresponding voltage output control signals and sending the voltage output control signals to the corresponding batteries so as to control the batteries to output corresponding voltages;

the mobile platform further comprises: and the isolator is arranged between the communication terminal and the power supply controller and used for isolating the interference of the power supply controller.

A mobile platform for receiving power from a plurality of batteries, comprising: the mobile platform includes:

and the power supply controller is connected with the communication terminal and used for determining the power supply mode of each battery according to the electrical parameters acquired by the communication terminal, generating corresponding voltage output control signals and sending the voltage output control signals to the corresponding batteries so as to control the batteries to output corresponding voltages.

In some embodiments, the power controller determines whether the electrical parameter of the battery acquired by the communication terminal satisfies a preset condition, and generates a safe voltage output control signal when it is determined that the acquired electrical parameter of the battery does not satisfy the preset condition,

or/and generating an operation voltage output control signal when the acquired electrical parameter of the battery is determined to meet the preset condition.

In some embodiments, the electrical parameter comprises a voltage value,

the power supply controller determines the difference between the voltage value of each battery and the voltage values of other batteries respectively, determines the maximum value from the difference values, and determines that the acquired electrical parameters of the batteries do not meet the preset condition when the maximum value is greater than or equal to a preset value,

or/and when the maximum value is smaller than the preset value, determining that the acquired electrical parameters of the battery meet the preset condition.

In some embodiments, the electrical parameter comprises a remaining charge,

the power controller determines the difference between the residual capacity of each battery and the residual capacities of other batteries, determines the maximum value from the difference values, and determines that the acquired electrical parameters of the batteries do not meet the preset condition when the maximum value is greater than or equal to a preset value,

In some embodiments, the power controller further generates an alarm prompt signal when it is determined that the obtained electrical parameter of the battery does not satisfy the preset condition, and sends the alarm prompt signal to the battery to control the battery to perform alarm prompt.

In some embodiments, the power controller is further configured to generate an output-stop operating voltage control signal when a shutdown signal for controlling shutdown of the mobile platform is received, and send the output-stop operating voltage control signal to each of the batteries to control each of the batteries to stop outputting the operating voltage.

In some embodiments, the communication terminal is for communicative connection with a communication port of the battery; and

the power controller is in communication connection with the battery through the communication terminal and a communication interface of the battery.

In some embodiments, the mobile platform further comprises:

the power device is used for providing driving power for the mobile platform;

the central board is provided with a plurality of electronic components, and the electronic components comprise the power supply controller;

a safety voltage receiving terminal electrically connected with the central board for receiving the safety voltage provided by the plurality of batteries and transmitting the safety voltage to the electronic components on the central board; and

the operating voltage receiving terminal is electrically connected with the power device and is used for receiving the operating voltage provided by the plurality of batteries and transmitting the operating voltage to the power device;

the power supply controller is in communication connection with the plurality of batteries through the communication terminal and controls voltage output of each battery.

In some embodiments, the mobile platform is an unmanned aerial vehicle, and the power device is configured to provide flight power to the unmanned aerial vehicle.

In some embodiments, the electronic component further comprises at least one of: flight controller, positioning unit, barometer, image sensor, wireless communication device.

In some embodiments, the mobile platform further comprises:

the power supply key is respectively connected with the plurality of batteries through the communication terminal; and

and the isolator is arranged between the communication terminal and the power supply controller and is used for isolating the interference of the power supply controller on the signal generated by the power supply key.

In some embodiments, the mobile platform further comprises an operating voltage receiving terminal for electrically connecting with the plurality of batteries and receiving an operating voltage provided by the plurality of batteries.

In some embodiments, the isolator includes two connection terminals and a control terminal, the two connection terminals are electrically connected to the communication terminal and the power controller respectively, the control terminal is electrically connected to the operating voltage receiving terminal, and when the control terminal receives an operating voltage through the operating voltage receiving terminal, the two connection terminals of the isolator are conducted to electrically connect the communication terminal and the power controller.

In some embodiments, when the isolator is in a conducting state, signals transmitted between the two connection ends have no delay and no distortion;

or/and the isolator comprises two MOS tubes which are connected in series in an inverted mode.

In some embodiments, the electrical parameter includes at least a remaining power, and the power controller is further configured to determine a total remaining power of the batteries in an active power supply state from the remaining battery power acquired by the communication terminal.

In some embodiments, when the current remaining power of all the batteries is obtained, the power controller determines that all the batteries are currently in an effective power supply state, and determines the sum of the remaining power of all the batteries as the total remaining power;

or/and when the power controller does not acquire the current residual capacity of any battery, determining that all batteries are in an invalid power supply state currently, or/and determining that the total residual capacity is zero.

In some embodiments, the electrical parameter further includes an operating current, and the power controller determines, when the current remaining capacity of part of the batteries is not acquired and the currently acquired operating current of the batteries has a rising jump of a first predetermined multiple, the sum of the currently acquired remaining capacities of all the batteries as the total remaining capacity;

or/and when the current residual capacity of part of the batteries is not acquired and the currently acquired working current of each battery does not generate rising jump of a first preset multiple, the power controller estimates the current residual capacity of the part of the batteries and determines the sum of the estimated current residual capacity of the part of the batteries and the currently acquired residual capacity of each battery as the total residual capacity.

In some embodiments, when the current residual capacity of a part of the batteries is not acquired and the currently acquired working current of the battery has a rising jump of a first predetermined multiple, the power controller determines that the part of the batteries, the current residual capacity of which is not acquired, is in an invalid power supply state and determines that other batteries are in an valid power supply state;

and/or the power supply controller determines that all the batteries are currently in an effective power supply state when the current residual capacity of part of the batteries is not acquired and the currently acquired working current of each battery does not generate rising jump of a first preset multiple.

In some embodiments, the number of batteries is two, and the first predetermined multiple is 1.5 times.

In some embodiments, the electrical parameter further includes a total charge capacity, and the power controller determines, as the current remaining capacity of the partial battery, a difference between the remaining capacity of the partial battery obtained at the previous time and a second predetermined multiple of the total charge capacity of the partial battery when estimating the current remaining capacity of the partial battery;

or/and the second predetermined multiple is one hundredth of the second predetermined multiple.

In some embodiments, the electrical parameter further includes a total charging capacity, and the power controller further calculates a sum of total charging capacities of all the batteries according to the obtained total charging capacities of the batteries, and calculates a ratio of the total remaining capacity of the plurality of batteries to the sum of the total charging capacities according to the sum of the total remaining capacity and the total charging capacity.

In some embodiments, the mobile platform further includes a power display unit in communication connection with the power controller, and the power controller transmits and controls the power display unit to display power according to the ratio.

In some embodiments, the power controller further sends a signal for acquiring electrical parameters of the battery to the plurality of batteries through the communication terminal to actively acquire the electrical parameters of the battery.

An electric device comprises a mobile platform and a plurality of batteries for supplying power to the mobile platform, wherein each battery comprises a communication interface and a battery controller, and the mobile platform comprises a communication terminal and a power controller;

the battery controller of each battery is in communication connection with the power controller of the mobile platform through a communication interface of the battery and a communication terminal of the mobile platform;

the communication interface is used for acquiring the electrical parameters of the battery and transmitting the electrical parameters to the communication terminal of the mobile platform;

the power supply controller is used for determining the power supply mode of each battery according to the electrical parameters acquired by the communication terminal, generating corresponding voltage output control signals and sending the voltage output control signals to the communication interfaces of the corresponding batteries;

the battery controller is used for generating a corresponding voltage output instruction according to the voltage output control signal received by the communication interface so as to control the battery to output a corresponding voltage;

the battery also comprises a power supply key, the battery controller is electrically connected with the power supply key, and the battery controller generates a safe voltage output instruction when receiving a pressing signal that the power supply key of the mobile platform or the power supply key of the battery is pressed so as to control the battery at the position to output safe voltage.

the voltage output control signal comprises a safe voltage output control signal, and the battery controller generates a safe voltage output instruction according to the safe voltage output control signal so as to control the battery to output safe voltage;

the power supply controller determines the difference between the voltage value of each battery and the voltage values of other batteries respectively, determines the maximum value from the difference values, determines that the obtained electrical parameters of the batteries do not meet preset conditions when the maximum value is larger than or equal to a preset value, or/and determines that the obtained electrical parameters of the batteries meet the preset conditions when the maximum value is smaller than the preset value.

the power supply controller determines a difference value between the residual electric quantity of each battery and the residual electric quantities of other batteries, determines a maximum value from the difference values, determines that the obtained electrical parameters of the batteries do not meet preset conditions when the maximum value is larger than or equal to a preset value, or/and determines that the obtained electrical parameters of the batteries meet the preset conditions when the maximum value is smaller than the preset value.

In some embodiments, the battery further includes a housing and a battery cell received in the housing, and the battery controller is electrically connected to the battery cell and disposed in the housing.

In some embodiments, the battery controller includes a power management unit and a voltage output control circuit, where the power management unit is configured to determine a voltage type to be output by a battery according to a type of the voltage output control signal received by the communication interface; and the voltage output control circuit generates a corresponding voltage output instruction according to the voltage type determined by the power management unit.

In some embodiments, the voltage output control signal comprises a safety voltage output control signal, and the battery controller generates a safety voltage output instruction according to the safety voltage output control signal to control the battery to output a safety voltage;

In some embodiments, the battery further comprises a connection status detection interface for electrically connecting with the mobile platform and receiving an on-bit signal when electrically connected with the mobile platform; the battery controller is electrically connected with the connection state detection interface and detects the in-place signal on the connection state detection interface in real time;

In some embodiments, the battery further includes a power key, the battery controller is electrically connected to the power key, and the battery controller generates a safe voltage output instruction when receiving a pressing signal that the power key of the mobile platform or the power key of the battery is pressed, so as to control the battery where the battery is located to output a safe voltage.

In some embodiments, the battery further includes an indication unit, the communication interface further receives an alarm prompt signal sent by the power controller, and sends the alarm prompt signal to the battery controller, and the battery controller controls the indication unit to perform alarm prompt.

In some embodiments, the battery further comprises:

In some embodiments, the power controller determines whether the electrical parameter of the battery acquired by the communication terminal satisfies a preset condition, and generates a safe voltage output control signal when the acquired electrical parameter of the battery is determined not to satisfy the preset condition, or/and generates an operating voltage output control signal when the acquired electrical parameter of the battery is determined to satisfy the preset condition.

In some embodiments, the electrical parameter includes a voltage value, and the power controller determines a difference between the voltage value of each battery and the voltage values of other batteries, and determines a maximum value from the difference values, and determines that the obtained electrical parameter of the battery does not satisfy the preset condition when the maximum value is greater than or equal to a preset value, or/and determines that the obtained electrical parameter of the battery satisfies the preset condition when the maximum value is less than the preset value.

In some embodiments, the electrical parameter includes a remaining power amount, the power controller determines a difference between the remaining power amount of each battery and the remaining power amounts of other batteries, determines a maximum value from the difference values, and determines that the obtained electrical parameter of the battery does not satisfy the preset condition when the maximum value is greater than or equal to a preset value, or/and determines that the obtained electrical parameter of the battery satisfies the preset condition when the maximum value is less than the preset value.

In some embodiments, the power controller further generates an alarm prompt signal when it is determined that the obtained electrical parameter of the battery does not satisfy the preset condition, and sends the alarm prompt signal to the battery controller to control the battery to perform alarm prompt.

In some embodiments, the mobile platform further comprises:

the power device is used for providing driving power for the mobile platform;

In some embodiments, the mobile platform further comprises:

In some embodiments, the mobile platform further includes a power display unit in communication with the power controller, and the power controller controls the power display unit to display power according to the ratio.

According to the invention, the mobile platform is in communication connection with the battery assembly firstly, and the mobile platform judges whether the battery assembly meets the starting condition or not according to the electrical parameters of the battery assembly, namely whether high-voltage power supply can be carried out or not, so that the situation that the performance difference among the batteries in the battery assembly is overlarge, for example, the voltage is reversed due to overlarge voltage difference or overlarge residual electric quantity difference, namely the high-voltage battery charges the low-voltage battery can be avoided, and the power utilization safety of the mobile platform can be ensured.

Drawings

Fig. 1 is a schematic structural diagram of an electrical device according to an embodiment of the present invention, where the electrical device includes a mobile platform and a battery assembly, and the battery assembly includes a plurality of batteries.

Fig. 2 is a perspective view of a battery according to an embodiment of the present invention.

Fig. 3 is a structural block diagram of the battery shown in fig. 2, which includes a battery management system.

Fig. 4 is a block diagram showing the structure of the battery management system shown in fig. 3.

Fig. 5 is a schematic structural diagram of a mobile platform according to an embodiment of the present invention.

Fig. 6 is a functional block diagram of the mobile platform shown in fig. 5.

Fig. 7 is a schematic diagram of a connection structure between a battery and a mobile platform according to an embodiment of the present invention;

FIG. 8 is a specific circuit diagram of an isolator for a battery or mobile platform of an embodiment of the present invention;

FIG. 9 is a flow chart of a battery control method of an embodiment of the present invention;

FIG. 10 is a flow chart of a method of power control for a mobile platform according to an embodiment of the present invention;

fig. 11 is a schematic diagram of power start control of a battery and a mobile platform according to an embodiment of the present invention.

Description of the main elements

Power utilization device 100

Battery assembly 20

Battery 21

Case 210

Battery cell 211

Battery management system 212

Connection interface 2120

Connection state detection interface 2121

Communication interface 2122

Safety voltage output interface 2123

Operating voltage output interface 2124

Voltage output control circuit 2125

Power management unit 2126

Battery controller 2127

Power supply button 214

Indication unit 215

Mobile platform 30

Fuselage 31

Central plate 32

Power controller 321

Connection port 33

Communication terminal 331

Safety voltage receiving terminal 332

Operating voltage receiving terminal 333

Power plant 34

Power supply key 35

Electric quantity display unit 36

Isolator 37

Connection ends 371, 372

Control terminal 373

Load 38

The following detailed description will further illustrate the invention in conjunction with the above-described figures.

Detailed Description

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The embodiments described below and the features of the embodiments can be combined with each other without conflict. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Fig. 1 is a schematic structural diagram of an electric device 100 according to an embodiment of the present invention. The powered device 100 includes a mobile platform 30 and a battery assembly 20 for powering the mobile platform 30.

In the present embodiment, the battery assembly 20 includes a plurality of batteries 21. Referring to fig. 2-3, each of the batteries 21 includes, but is not limited to, a housing 210, at least one battery cell 211 received in the housing 210, and a battery management system 212. The battery management system 212 is electrically connected to the battery core 211, and is configured to manage voltage output of the battery 21, so as to supply power to the mobile platform 30.

In this embodiment, the mobile platform 30 may be configured to receive power from the battery assembly 20 and to control the voltage output of the battery assembly 20, and the battery management system 212 may manage the voltage output of the battery 21 according to the control of the mobile platform 30. The following is a detailed description of specific examples.

Battery with a battery cell

Referring to fig. 4, in the present embodiment, the battery management system 212 includes, but is not limited to, a communication interface 2122 and a battery controller 2127 connected to the communication interface 2122, and the communication interface 2122 is used for being communicatively connected to the power controller 321 (shown in fig. 6) of the mobile platform 30.

The battery controller 2127 is connected to the communication interface 2122, and configured to generate a corresponding voltage output instruction according to the voltage output control signal received by the communication interface 2122, so as to control the battery to output a corresponding voltage.

Specifically, the communication interface 2122 of the battery 21 is configured to be communicatively connected to the communication terminal 331 of the mobile platform 30, so that the battery controller 2127 of the battery 21 can be communicatively connected to the power controller 321 of the mobile platform 30 through the communication interface 2122 and the communication terminal 331 (shown in fig. 6) of the mobile platform 30.

In this embodiment, the communication interface 2122 obtains electrical parameters of the battery 21 and transmits the electrical parameters to the power controller 321 of the mobile platform 30, so that the power controller 321 generates a corresponding voltage output control signal according to the electrical parameters. Wherein the electrical parameter comprises at least one of: voltage value, residual capacity, total charge capacity, working current and service life of the battery.

In one embodiment, the communication interface 2122 may actively obtain electrical parameters of the battery 21 and actively send the electrical parameters to the power controller 321 of the mobile platform 30. Alternatively, in another embodiment, the communication interface 2122 may receive and respond to the signal for acquiring the electrical parameter of the battery sent by the power controller 321 of the mobile platform 30, acquire the electrical parameter of the battery 21 and send the electrical parameter to the power controller 321 of the mobile platform 30.

In this embodiment, the communication interface 2122 is further configured to receive a voltage output control signal sent by the power controller 321.

The battery controller is configured to generate a corresponding voltage output instruction according to the voltage output control signal received by the communication interface 2122, so as to control the battery 21 to output a corresponding voltage.

In this embodiment, the battery controller includes a power management unit 2126 and a voltage output control circuit 2125. Specifically, in this embodiment, the power management unit 2126 may include one of the following: an MCU, a fuel gauge, a current measuring circuit, a voltage measuring circuit, a temperature sensor, an electronic switch, and the like. The voltage output control circuit 2125 may include at least one of: electronic switches, shunting circuits, voltage boosting circuits, voltage dropping circuits, voltage stabilizing circuits (e.g., low dropout linear regulators (LDOs)).

The power management unit 2126 is connected to the communication interface 2122 and the voltage output control circuit 2125, and the power management unit 2126 is configured to determine a voltage type to be output by the battery 21 according to the type of the voltage output control signal received by the communication interface 2122. The voltage output control circuit 2125 generates a corresponding voltage output command according to the voltage type determined by the power management unit 2126.

In one embodiment, the voltage output control signal may include a safety voltage output control signal, and the battery controller 2127 may generate a safety voltage output command according to the safety voltage output control signal to control the battery 21 to output a safety voltage.

In one embodiment, the voltage output control signal may include an operating voltage output control signal, and the battery controller 2127 may generate an operating voltage output command according to the operating voltage output control signal to control the battery 21 to output an operating voltage. Specifically, the battery controller 2125 of each battery 21 of the battery assembly 20 can selectively control the output operating voltage of the battery, that is, the batteries 21 included in the battery assembly 20 can be controlled individually, and all or one or more of the batteries 21 can be selectively controlled to output operating voltage at the same time.

In one embodiment, the voltage output control signal may include a stop output operation voltage control signal, and the battery controller 2125 may generate a stop output operation voltage command according to the stop output operation voltage control signal to control the battery 21 to stop outputting the operation voltage. Specifically, the battery controller 2125 of each battery 21 of the battery assembly 20 may selectively control the battery to stop outputting the operating voltage, that is, the batteries 21 included in the battery assembly 20 may be individually controlled, and all or one or more of the batteries 21 may be selectively controlled to stop outputting the operating voltage at the same time.

It is understood that the battery controller 2127 may further generate a safe voltage output command to control the local battery 21 to output a safe voltage after controlling the local battery 21 to stop outputting the operating voltage. Alternatively, the battery controller 2127 may further generate a shutdown instruction after controlling the battery 21 to stop outputting the operating voltage, so as to control the battery 21 to shutdown and stop outputting any power supply voltage. Specifically, the battery controller 2125 of each battery 21 of the battery assembly 20 may selectively control the battery to stop outputting any power supply voltage, that is, the batteries 21 included in the battery assembly 20 may be individually controlled, and all or one or more of the batteries 21 may be selectively controlled to stop outputting any power supply voltage at the same time.

In this embodiment, the safe voltage may have a value range of 3.3V to 17.8V, and the operating voltage may have a value range of 18V to 26.3V.

In one embodiment, the battery 21 may be configured to be normally open for safe voltage supply. Alternatively, in another embodiment, the battery 21 may be configured to automatically output a safe voltage when electrically connected to the mobile platform 30.

Referring to fig. 3 again, in this embodiment, the battery 21 further includes an indication unit 215, and the communication interface 2122 is further configured to receive an alarm prompt signal sent by the power controller 321, and send the alarm prompt signal to the indication unit 215 for alarm prompt.

Fig. 9 is a flowchart of a battery control method according to an embodiment of the present invention. The battery control method can be applied to the system.

First, at step 90, the plurality of batteries of the battery assembly 20 are powered up.

Step 91, checking the power of the battery pack 20 through the keys of the battery pack 20. The case of the battery assembly 20 may be the power button 214, and the power of the battery assembly 20 may be displayed through the indication unit 215. At this time, the battery assembly 20 has no voltage output.

Step 92, accessing the mobile platform 30 (e.g. UAV), and turning on the power of the mobile platform 30, specifically, pressing the power button 35 of the mobile platform 30.

In step 93, the signal of pressing the power key 35 is transmitted to the battery controller 2127 through the communication terminal 331 and the communication interface 2122 of the battery 21. The battery controller 2127 controls the battery 21 to turn on a low voltage output (e.g., a safe voltage output). In this case, the plurality of cells of the battery module 20 may turn on the low voltage output at the same time, or only one or more of the cells may turn on the low voltage output. In some embodiments, a signal generated by the pressing of the power button 35 may be transmitted to the power controller 321, and the power controller 321 may send a turn-on low voltage control signal to the battery controller 2127 according to the signal.

The battery controller 321 obtains the electrical parameter of each battery, determines whether the electrical parameter of each battery meets a predetermined condition according to the electrical parameter of each battery, and generates a corresponding voltage output control signal according to the determination result. The predetermined conditions include whether or not a voltage difference between the batteries is within an allowable range, and whether or not the remaining capacity of the battery assembly 20 is within an allowable range.

Specifically, in step 94, the battery controller 321 determines whether the voltage difference between the batteries of the battery assembly 20 is within an allowable range, and if so, the process goes to step 95; if not, go to step 96.

In step 95, the battery controller 321 determines whether the remaining power of the battery assembly 20 is within the allowable range, if so, the process goes to step 97, and if not, the process goes to step 96.

In step 96, the battery controller 321 does not generate a voltage output control signal, and generates an alarm signal to prompt an error.

In step 97, the battery controller 321 generates a high voltage (e.g., operating voltage) output control signal, and the operating voltage output control signal is transmitted to the battery controller 2127 of the battery 21 through the communication terminal 331 and the communication interface 2122 of the battery 21 to control the battery 21 to output the operating voltage, so as to supply power to the electronic components (e.g., the power device 34) of the mobile platform 30.

A mobile platform:

referring to fig. 6, in the present embodiment, as described above, the mobile platform 30 includes, but is not limited to, the communication terminal 331 and the power controller 321 connected to the communication terminal 331, and the communication terminal 331 is used for being communicatively connected to the plurality of batteries 21 included in the battery assembly 20, respectively.

Specifically, the communication terminal 331 is configured to be communicatively connected to a communication interface 2122 of the battery 21, so that the power controller 321 of the mobile platform 30 can be communicatively connected to a battery controller 2127 of the battery 21 through the communication terminal 331 and the communication interface 2122 of the battery 21, and control the voltage output of the battery 21.

The communication terminal 331 acquires an electrical parameter of each of the batteries 21. As mentioned above, the electrical parameter comprises at least one of: voltage value, residual capacity, total charge capacity, working current and service life of the battery.

In one embodiment, the power controller 321 further sends a signal for acquiring electrical parameters of the battery to the plurality of batteries 21 included in the battery assembly 20 through the communication terminal 331 so as to actively acquire the electrical parameters of the batteries 21. Or, in another embodiment, the power controller 321 further obtains the electrical parameters of the batteries 21 actively transmitted by the plurality of batteries 21 included in the battery assembly 20 through the communication terminal 331.

The power controller 321 is configured to determine a power supply mode of each battery 21 according to the electrical parameter acquired by the communication terminal 331, generate a corresponding voltage output control signal, and send the voltage output control signal to the corresponding battery 21, so as to control the battery 21 to output a corresponding voltage.

Specifically, in this embodiment, the power controller 321 determines whether the electrical parameter of the battery 21 acquired by the communication terminal 331 satisfies a preset condition, and generates a safety voltage output control signal when it is determined that the acquired electrical parameter of the battery 21 does not satisfy the preset condition, or/and generates an operating voltage output control signal when it is determined that the acquired electrical parameter of the battery 21 satisfies the preset condition.

In one embodiment, the electrical parameter includes a voltage value, and the power controller 321 determines a difference between the voltage value of each battery 21 and the voltage values of the other batteries 21, determines a maximum value from the differences, and determines that the acquired electrical parameter of the battery 21 does not satisfy the preset condition when the maximum value is greater than or equal to a preset value, or/and determines that the acquired electrical parameter of the battery 21 satisfies the preset condition when the maximum value is less than the preset value.

In one embodiment, the electrical parameter includes a remaining power, the power controller 321 determines a difference between the remaining power of each battery 21 and the remaining power of each other battery 21, determines a maximum value from the differences, and determines that the acquired electrical parameter of the battery 21 does not satisfy the preset condition when the maximum value is greater than or equal to a preset value, or/and determines that the acquired electrical parameter of the battery 21 satisfies the preset condition when the maximum value is less than the preset value.

It is understood that, in other embodiments, the power controller 321 may not generate any voltage control signal when determining that the acquired electrical parameter of the battery 21 does not satisfy the preset condition.

In this embodiment, the power controller 321 further generates an alarm prompt signal when it is determined that the obtained electrical parameter of the battery 21 does not satisfy the preset condition, and sends the alarm prompt signal to the battery 21, so as to control the battery 21 to perform alarm prompt.

According to the invention, the mobile platform 30 is firstly in communication connection with the battery assembly 20, and the mobile platform 30 judges whether the battery assembly 20 meets the starting condition according to the electrical parameters of the battery assembly 20, namely whether high-voltage power supply can be carried out, so that the situation that the performance difference among the batteries 21 in the battery assembly 20 is overlarge, for example, voltage backflow is caused by overlarge voltage difference or overlarge residual electricity difference, namely, the high-voltage battery charges the low-voltage battery can be avoided, and the power utilization safety of the mobile platform 30 is ensured.

Referring to fig. 3-4, in this embodiment, the battery 21 further includes a power button 214 on the housing 210, the battery controller 2127 is electrically connected to the power button 214, and the battery controller 2127 generates a safety voltage output instruction when receiving a pressing signal that the power button 35 (shown in fig. 6) of the mobile platform 30 or the power button 214 of the battery 21 is pressed, so as to control the battery 21 to output a safety voltage.

In this embodiment, the electrical parameters at least include a current remaining power and a total charging power, the battery controller 2127 is further connected to the power key 214 and the indication unit 215, and the battery controller 2127 is configured to obtain the current remaining power and the total charging power of the battery 21, calculate a ratio between the current remaining power and the total charging power, and send the ratio to the indication unit 215 for power display when detecting a pressing signal that the power key 214 is pressed.

In this way, the power button 214 of the battery 21 is not used as a high voltage output switch of the battery 21, but used as a switch for displaying battery capacity and/or outputting safe voltage, so that the battery assembly 20 can be effectively prevented from supplying power to the mobile platform 30 under the condition that the performance difference between the batteries 21 is too large, and the power consumption safety of the mobile platform 30 can be ensured.

In this embodiment, the battery management system 212 can also actively manage the voltage output of the battery 21. The following is a detailed description of specific examples.

In this embodiment, the battery management system 212 further includes a connection status detecting interface 2121, wherein the connection status detecting interface 2121 is configured to be electrically connected to the mobile platform 30 and receive an on-bit signal when electrically connected to the mobile platform 30. Wherein the on-position signal is a direct current voltage signal or a pulse signal from the mobile platform 30.

The battery controller 2127 is electrically connected to the connection state detection interface 2121, and detects the on-site signal on the connection state detection interface 2121 in real time.

The battery controller 2127 is further configured to generate an operation voltage stop instruction when the in-place signal is not detected, so as to control the battery 21 to stop outputting the operation voltage, and/or the battery controller 2127 is further configured to generate a safety voltage output instruction when the in-place signal is detected, so as to control the battery 21 to output a safety voltage.

The battery management system 212 of the present invention manages the voltage output of the battery 21 by actively detecting the connection state between the battery 21 and the mobile platform 30, so as to effectively prevent the transient voltage impact caused by the connection between the battery 21 and the mobile platform 30 in the power-on state and the circuit damage of the mobile platform 30. In addition, when the battery 21 is separated from the moving platform 30, the power supply is automatically stopped.

It is understood that, in one embodiment, the battery controller 2127 may further generate a stop output operating voltage instruction to control the battery 21 to stop outputting the operating voltage when the communication interface 2122 receives a shutdown control signal for controlling the mobile platform 30 to shut down. The power-off control signal may be a signal generated when the power button 35 (shown in fig. 6) of the mobile platform 30 is pressed, or a remote control signal sent from a control terminal (not shown).

It is understood that, in one embodiment, the power controller 321 is further configured to generate a stop output operating voltage control signal when receiving a shutdown signal for controlling the mobile platform 30 to shutdown, and send the stop output operating voltage control signal to each of the batteries 21, so as to control each of the batteries 21 to stop outputting the operating voltage. The mobile platform 30 further includes the power key 35, and the shutdown signal may be a signal generated when the power key 35 of the mobile platform 30 is pressed, or a remote control signal sent by a control terminal (not shown). Alternatively, the power-off signal generated when the power key 35 is pressed may be directly transmitted to the battery 21.

According to the invention, the battery 21 is automatically disconnected to continuously supply power to the high voltage of the mobile platform 30 after the mobile platform 30 is shut down, so that the circuit damage to the mobile platform 30 caused by the high voltage when the mobile platform 30 is in a shutdown state can be effectively avoided.

In this embodiment, the high-voltage power module and the low-voltage power module of the mobile platform 30 are separately and independently configured to receive power. The following is a detailed description of specific examples.

Battery with a battery cell

Referring to fig. 4 again, the battery management system 212 further includes a safety voltage output interface 2123 and an operating voltage output interface 2124, wherein the safety voltage output interface 2123 is electrically connected to the electric core 211 of the battery 21, and the safety voltage output interface 2123 is further configured to be electrically connected to a safety voltage receiving terminal 332 (shown in fig. 6) of the mobile platform 30, and transmit a safety voltage to the mobile platform 30 through the safety voltage receiving terminal 332.

The operating voltage output interface 2124 is electrically connected to the electric core 211 of the battery 21, and the operating voltage output interface 2124 is further configured to be electrically connected to an operating voltage receiving terminal 333 (shown in fig. 6) of the mobile platform 30, and transmit an operating voltage to the mobile platform 30 through the operating voltage receiving terminal 333.

Specifically, in the present embodiment, the safety voltage output interface 2123 and the operating voltage output interface 2124 are electrically connected to the battery cell 211 through the voltage output control circuit 2125.

In this embodiment, the battery 21 may further include a connection interface 2120 disposed on the housing 210, and the connection state detection interface 2121, the communication interface 2122, the safety voltage output interface 2123, and the operation voltage output interface 2124 may be integrated into the connection interface 2120, for example, each of the

interfaces

2121 and 2124 may be a pin of the connection interface 2120. In other embodiments, the connection interface 2120 may be omitted, and the connection state detection interface 2121, the communication interface 2122, the safety voltage output interface 2123 and the operation voltage output interface 2124 may be separately provided on the housing 210.

Mobile platform

Referring to fig. 6, in the present embodiment, the moving platform 30 further includes a central board 32, wherein a plurality of electronic components are disposed on the central board 32, and the electronic components include the power controller 321.

In this embodiment, the power controller 321 and other electronic components on the central board 32 operate under the safety voltage provided by the battery pack 20.

In this embodiment, the mobile platform 30 further includes a safety voltage receiving terminal 332, and the safety voltage receiving terminal 332 is electrically connected to the central board 32 and is used for receiving the safety voltage provided by the battery assembly 20 and transmitting the safety voltage to the electronic components on the central board 32.

Referring to fig. 5, in the present embodiment, the mobile platform 30 further includes a body 31 and a power device 34 disposed on the body 31. The power device 34 is electrically connected to the battery assembly 20, and is configured to receive power supplied by the battery assembly 20 and provide driving power to the mobile platform 30.

In the present embodiment, the power unit 34 operates at an operating voltage provided by the battery assembly 20.

In this embodiment, the mobile platform 30 further includes an operating voltage receiving terminal 333, and the operating voltage receiving terminal 333 is electrically connected to the power device 34 and is used for receiving the operating voltage provided by the battery assembly 20 and transmitting the operating voltage to the power device 34.

In this embodiment, the mobile platform 30 may further include a connection port 33, and the communication terminal 331, the safety voltage receiving terminal 332 and the operation voltage receiving terminal 333 may be integrated in the connection port 33, for example, each of the

terminals

331 and 333 may be a pin of the connection port 33. In other embodiments, the connection port 33 may be omitted, and the communication terminal 331, the safety voltage receiving terminal 332, and the operating voltage receiving terminal 333 may be separately and independently provided.

Thus, the mobile platform 30 of the present invention separately and individually sets and individually receives the high voltage power module, such as the power device 34, and the low voltage power module, such as the power controller 321, so as to provide the low voltage power to the power controller 321 before the battery assembly 20 is started, so that the power controller 321 can operate and obtain the electrical parameters of each battery 21 of the battery assembly 20 to determine whether the battery assembly 20 meets the starting condition, i.e., whether the battery assembly 20 can perform the high voltage power supply, and control the battery assembly 20 to provide the high voltage power module of the mobile platform 30 after determining that the battery assembly 20 meets the starting condition, so as to prevent the mobile platform 30 from being powered back due to the high voltage power provided by the battery assembly 20 when the performance difference between each battery 21 is too large, i.e., a high voltage battery charging a low voltage battery, occurs to ensure the electrical safety of the mobile platform 30.

In this embodiment, the mobile platform 30 is an unmanned aerial vehicle, and the power device 34 is used for providing flight power for the unmanned aerial vehicle. The electronic component further includes at least one of: flight controller, positioning unit, barometer, image sensor, wireless communication device. The mobile platform 30 may also be used to carry a load 38.

In this embodiment, the mobile platform 30 can also be used to monitor the remaining capacity of the battery assembly 20. The following is a detailed description of specific examples.

In this embodiment, the electrical parameter at least includes a remaining power, and the power controller 321 is further configured to determine a total remaining power of the battery 21 in an effective power supply state in the battery assembly 20 according to the remaining battery power acquired by the communication terminal 331.

In the first embodiment, when acquiring the current remaining capacities of all the batteries 21 of the battery assembly 20, the power controller 321 determines that all the batteries 21 are currently in an effective power supply state, and determines the sum of the remaining capacities of all the batteries as the total remaining capacity. And/or when the current remaining capacity of any battery 21 of the battery assembly 20 is not obtained, the power controller 321 determines that all batteries 21 are currently in an invalid power supply state, and determines that the total remaining capacity is zero.

In another embodiment, the electrical parameter further includes an operating current, and the power controller 321 determines that, when the current remaining power of part of the batteries 21 of the battery assembly 20 is not acquired and the currently acquired operating current of the batteries 21 has a rising jump of a first predetermined multiple, the part of the batteries 21 whose current remaining power is not acquired is in an invalid power supply state, determines that other batteries 21 are in an valid power supply state, and determines the sum of the currently acquired remaining powers of all the batteries 21 as the total remaining power.

Or/and when the current remaining capacity of a part of the batteries 21 of the battery assembly 20 is not obtained and the currently obtained operating current of each battery 21 does not generate a rising jump of a first predetermined multiple, the power controller 321 determines that all the batteries 21 of the battery assembly 20 are currently in an effective power supply state, estimates the current remaining capacity of the part of the batteries 21, and determines the sum of the estimated current remaining capacity of the part of the batteries 21 and the currently obtained remaining capacity of each battery 21 as the total remaining capacity.

In the alternative embodiment, the battery assembly 20 includes two batteries 21, and the first predetermined multiple is 1.5 times.

In the another embodiment, the electrical parameter further includes a total charging capacity, and the power controller 321 determines, when estimating the current remaining capacity of the part of the batteries 21, a difference between the remaining capacity of the part of the batteries 21 obtained at the previous time and a second predetermined multiple of the total charging capacity of the part of the batteries 21 as the current remaining capacity of the part of the batteries 21. Wherein the second predetermined multiple may be one hundredth times.

In this embodiment, the electrical parameters further include a total charging capacity, and the power controller 321 further calculates a sum of the total charging capacities of all the batteries 21 according to the obtained total charging capacity of each of the batteries 21, and calculates a ratio of the total remaining capacity of the battery assembly 20 to the sum of the total charging capacities according to the sum of the total remaining capacity and the total charging capacity.

In this embodiment, the mobile platform 30 further includes an electric quantity display unit 36 communicatively connected to the power controller 321, and the power controller 321 transmits the ratio to the electric quantity display unit 36 for displaying the electric quantity.

In this way, when the battery assembly 20 is abnormal in the operation process, for example, when the communication with the mobile platform 30 is abnormal or the battery itself is abnormal, the mobile platform 30 can make an intelligent power estimation in time, so that the remaining power condition of the battery assembly 20 can be effectively monitored, and an operator can be prompted to make a correct operation decision in time. For example, taking an unmanned aerial vehicle as the mobile platform 30 as an example, when the battery assembly 20 is low in power, the operator may be prompted to land and shut down the unmanned aerial vehicle in time, so as to prevent the unmanned aerial vehicle from crash due to insufficient power supply of the battery assembly 20.

Fig. 10 is a flowchart of a power control method of a mobile platform according to an embodiment of the present invention. The electric quantity control method of the mobile platform can be applied to the mobile platform.

In step 1001, the power controller 321 determines whether the battery of the battery assembly 20 is abnormal. In the present embodiment, for convenience of description, the battery assembly 20 including two batteries 21 is exemplified. The abnormality includes, but is not limited to, the power controller 321 failing to acquire the power of the battery 21, such as: communication between the battery 21 and the power controller 321 is abnormal, or the battery 21 fails. When the two batteries 21 are not abnormal, the step 1002 is entered, if one of the two batteries is abnormal, the step 1003 is entered, and if the two batteries are abnormal, the step 1007 is entered.

In step 1002, the power controller 321 calculates the percentage of the total electric quantity of the battery assembly 20 as the ratio of the remaining electric quantity sum of the two batteries to the full charge capacity sum of the two batteries.

Step 1003, when one of the batteries is abnormal, the current of the normal battery is obtained.

In step 1004, the power controller 321 determines whether the normal battery current has a jump of a predetermined multiple (e.g., 1.5 times). When there is a jump of a predetermined multiple, step 1005 is entered, if not, step 1006 is entered.

In step 1005, the power controller 321 calculates the percentage of the total power of the battery assembly 20 as the ratio of the remaining power of the normal battery to the sum of the full charge capacities of the two batteries.

In step 1006, the power controller 321 calculates the percentage of the total power of the battery assembly 20 as the ratio of the remaining power sum of the two batteries to the full charge capacity sum of the two batteries. The remaining capacity of the abnormal battery is calculated at a predetermined consumption rate (for example, by decreasing the percentage of the design capacity per second) based on the remaining capacity of the abnormal battery before the abnormality.

Step 1007, if both batteries are abnormal in communication, determining that the battery assembly 20 is in an invalid power-on state, and entering step 1008, where the power controller 321 calculates the percentage of the total electric quantity to be zero.

In this embodiment, the mobile platform 30 employs a power switch bus and communication line multiplexing to save connector terminals. The following is a detailed description of specific examples.

Please refer to fig. 7 and fig. 11, which are schematic views of a connection structure between the battery 21 and the mobile platform 30 according to an embodiment of the present invention. The power key 35 is connected to the plurality of batteries 21 included in the battery pack 20 through the communication terminal 331.

The mobile platform 30 further includes an isolator 37, in this embodiment, the isolator 37 is disposed between the communication terminal 331 and the power controller 321, and is used for blocking signal interference generated by the power controller 321 on the power key 35. In other words, before the battery 21 does not supply power to the isolator, the interference signal generated by the power controller 321 is isolated by the isolator 37, so that when the battery is inserted, the interference signal generated by the power controller 321 is possibly mistaken for a key-down operation, and the battery 21 is mistakenly awakened.

In this embodiment, the isolator 37 includes two

connection terminals

371, 372 and a control terminal 373, the two

connection terminals

371, 372 are electrically connected to the communication terminal 331 and the power controller 321, respectively, the control terminal 373 is electrically connected to the operation voltage receiving terminal 333, and when the control terminal 373 receives the operation voltage through the operation voltage receiving terminal 333, the two

connection terminals

371, 372 of the isolator 37 are conducted to electrically connect the communication terminal 331 and the power controller 321.

When the isolator 37 is in a conducting state, the signal transmitted between the two

connection terminals

371 and 372 has no delay and no distortion, that is, the communication signal transmitted between the power controller 321 and the battery pack 20 has no delay and no distortion after passing through the isolator 37.

In one embodiment, the isolator 37 comprises a plurality of MOS transistors. The MOS tube can be an NMOS tube or a PMOS tube. The plurality of MOS transistors may be connected in series.

Referring to fig. 8, in the illustrated embodiment, the isolator 37 includes 2 NMOS transistors Q9 and Q10, which are connected in series and in reverse. Each NMOS transistor has a parasitic diode. The communication signal output by the battery end sequentially passes through 2 NMOS transistors Q9 and Q10 and then is output to the power controller 321, and the communication signal has no time delay and distortion when passing through the isolator 37. Direct communication between the battery assembly 20 and the power controller 321 is isolated by the isolator 37.

In other embodiments, the isolator 37 may also include other electronic switches, such as diodes, solid state relays, and the like.

The mobile platform 30 of the present invention employs multiplexing of a power switch bus and a communication line, and the line can be used for power key switch detection when not communicating, thus saving connector terminals. However, when a battery is inserted, since the IO pin of the single chip of the mobile platform 30 at the initial stage of power-on is in an indefinite state, the battery may be inserted incorrectly as if the power button is pressed, and the central board may be triggered by mistake to start the battery assembly 20 after power-on. The invention can effectively avoid the occurrence of the false triggering operation by introducing the isolator 37.

The present disclosure provides technical solution 1: a battery management system for managing voltage output of a battery, the battery management system comprising:

The technical scheme 2 is as follows: a battery management system for managing voltage output of a battery, the battery management system comprising:

Claim 3 according to claim 1 or 2: the battery controller comprises a voltage output control circuit and the power management unit; the power supply management unit is respectively and electrically connected with the communication interface and the voltage output control circuit,

According to claim 4 of claim 3: the electrical parameter comprises at least one of: voltage value, residual capacity, total charge capacity, working current and service life of the battery.

According to claim 5 of claim 3: the voltage output control signal comprises a safe voltage output control signal, and the battery controller generates a safe voltage output instruction according to the safe voltage output control signal so as to control the battery to output a safe voltage;

According to claim 6 of claim 5: the value range of the safe voltage is 3.3V-17.8V;

or/and the value range of the operating voltage is 18V-26.3V.

According to claim 7 of claim 3: the battery management system also comprises a connection state detection interface which is used for being electrically connected with the mobile platform and receiving an on-position signal when being electrically connected with the mobile platform;

According to claim 8 of claim 7: the in-place signal is a direct current voltage signal or a pulse signal from the mobile platform.

According to claim 9 of claim 3: the battery also comprises a power supply key, the battery controller is electrically connected with the power supply key, and the battery controller generates a safe voltage output instruction when receiving a pressing signal that the power supply key of the mobile platform or the power supply key of the battery is pressed so as to control the battery to output safe voltage.

Claim 10 according to claim 1 or 2: the battery further comprises a power supply key and an indicating unit, a power supply controller of the mobile platform is respectively connected with the power supply key and the indicating unit, the electrical parameters at least comprise current residual electric quantity and total charging electric quantity, the power supply controller of the mobile platform is used for obtaining the current residual electric quantity and the total charging electric quantity of the battery, calculating the ratio of the current residual electric quantity to the total charging electric quantity, and sending the ratio to the indicating unit for displaying the electric quantity when detecting a pressing signal that the power supply key is pressed.

Claim 11 according to claim 1 or 2: the battery further comprises an indicating unit, and the communication interface further receives an alarm prompting signal sent by the power controller and sends the alarm prompting signal to the indicating unit for alarm prompting.

Claim 12 according to claim 1 or 2: the battery controller also generates an operation voltage output stopping instruction when the communication interface receives a shutdown control signal for controlling the mobile platform to be shut down so as to control the battery to stop outputting the operation voltage.

Claim 13 according to claim 5 or 12: the battery controller also generates a safe voltage output instruction after controlling the battery to stop outputting the operating voltage so as to control the battery to output the safe voltage.

Claim 14 according to claim 5 or 12: the battery controller also generates a shutdown instruction after controlling the battery to stop outputting the operating voltage so as to control the battery to shut down and stop outputting any power supply voltage.

Claim 15 according to claim 1 or 2: the communication interface is used for being in communication connection with a communication terminal of the mobile platform; and

Claim 16 according to claim 1 or 2 or 15: the battery further includes a battery cell, the battery management system further includes:

Claim 17 according to claim 1 or 2: the communication interface actively acquires the electrical parameters of the battery and actively sends the electrical parameters to the power controller of the mobile platform;

The present disclosure provides technical solution 18: a battery, comprising:

a housing;

the battery cell is accommodated in the shell; and

the battery management system, the battery management system locate inside the casing, and with the electricity core electricity is connected, the battery management system is used for managing the voltage output of battery, the battery management system includes:

Technical scheme 19: a battery, comprising:

a housing;

the battery cell is accommodated in the shell; and

Claim 20 according to claim 18 or 19: the battery controller comprises a voltage output control circuit and the power management unit; the power supply management unit is respectively and electrically connected with the communication interface and the voltage output control circuit,

According to claim 21 of claim 20: the electrical parameter comprises at least one of: voltage value, residual capacity, total charge capacity, working current and service life of the battery.

Claim 22 according to claim 20: the voltage output control signal comprises a safe voltage output control signal, and the battery controller generates a safe voltage output instruction according to the safe voltage output control signal so as to control the battery to output a safe voltage;

Claim 23 according to claim 22: the value range of the safe voltage is 3.3V-17.8V:

or/and the value range of the operating voltage is 18V-26.3V.

Claim 24 according to claim 20: the battery management system also comprises a connection state detection interface which is used for being electrically connected with the mobile platform and receiving an on-position signal when being electrically connected with the mobile platform;

Claim 25 according to claim 24: the in-place signal is a direct current voltage signal or a pulse signal from the mobile platform.

Claim 26 according to claim 20: the battery also comprises a power supply key, the battery controller is electrically connected with the power supply key, and the battery controller generates a safe voltage output instruction when receiving a pressing signal that the power supply key of the mobile platform or the power supply key of the battery is pressed so as to control the battery to output safe voltage.

Claim 27 according to claim 18 or 19: the battery further comprises a power supply key and an indicating unit, a power supply controller of the mobile platform is respectively connected with the power supply key and the indicating unit, the electrical parameters at least comprise current residual electric quantity and total charging electric quantity, the power supply controller of the mobile platform is used for obtaining the current residual electric quantity and the total charging electric quantity of the battery, calculating the ratio of the current residual electric quantity to the total charging electric quantity, and sending the ratio to the indicating unit for displaying the electric quantity when detecting a pressing signal that the power supply key is pressed.

Claim 28 according to claim 18 or 19: the battery further comprises an indicating unit, and the communication interface further receives an alarm prompting signal sent by the power controller and sends the alarm prompting signal to the indicating unit for alarm prompting.

Claim 29 according to claim 18 or 19: and the battery controller generates an operating voltage output stopping instruction when the communication interface receives a shutdown control signal for controlling the mobile platform to be shut down so as to control the battery to stop outputting the operating voltage.

Claim 30 according to claim 22 or 29: and the battery controller generates a safe voltage output instruction after controlling the battery to stop outputting the operating voltage so as to control the battery to output the safe voltage.

Claim 31 according to claim 22 or 29: the battery controller generates a shutdown instruction after controlling the battery to stop outputting the operating voltage so as to control the battery to shut down and stop outputting any power supply voltage.

Claim 32 according to claim 18 or 19: the communication interface is used for being in communication connection with a communication terminal of the mobile platform; and

Claim 33 according to claim 18 or 19 or 32: the battery further includes a battery cell, the battery management system further includes:

Claim 34 according to claim 18 or 19: the communication interface actively acquires the electrical parameters of the battery and actively sends the electrical parameters to the power controller of the mobile platform;

Claim 35 according to claim 18 or 19: the battery controller is configured to be normally open powered at a safe voltage.

Claim 36 according to claim 18 or 19: the battery controller is configured to automatically output a safe voltage when electrically connected with the mobile platform.

The present disclosure also provides technical solution 37: a mobile platform for receiving power from a plurality of batteries, the mobile platform comprising:

The present disclosure also provides technical solution 38: a mobile platform for receiving power from a plurality of batteries, the mobile platform comprising:

The present disclosure also provides technical solution 39: a mobile platform for receiving power from a plurality of batteries, the mobile platform comprising:

The present disclosure also provides technical solution 40: a mobile platform for receiving power from a plurality of batteries, the mobile platform comprising:

Claim 41 according to any one of claims 37 to 40: the electrical parameter comprises at least one of: voltage value, residual capacity, total charge capacity, working current and service life of the battery.

Claim 42 according to any one of claims 37 to 40: the power controller judges whether the electrical parameter of the battery acquired by the communication terminal meets a preset condition or not, and generates a safe voltage output control signal when the acquired electrical parameter of the battery does not meet the preset condition,

Technical means 43 according to technical means 42: the electrical parameter comprises a value of a voltage,

Technical means 44 according to technical means 42: the electrical parameter includes a remaining amount of power,

According to claim 45 of claim 42: and the power supply controller also generates an alarm prompt signal when the obtained electrical parameters of the battery are determined not to meet the preset conditions, and sends the alarm prompt signal to the battery so as to control the battery to carry out alarm prompt.

Claim 46 according to any one of claims 37 to 40: the power supply controller is further used for generating an operation voltage output stopping control signal when receiving a shutdown signal for controlling the mobile platform to be shut down, and sending the operation voltage output stopping control signal to each battery so as to control each battery to stop outputting the operation voltage.

Claim 47 according to any one of claims 37 to 40: the communication terminal is used for being in communication connection with a communication port of the battery; and

Claim 48 according to any one of claims 37 to 40: the mobile platform further comprises:

the power device is used for providing driving power for the mobile platform;

Technical means 49 according to technical means 48: the mobile platform is an unmanned aerial vehicle, and the power device is used for providing flight power for the unmanned aerial vehicle.

Technical means 50 according to technical means 49: the electronic component further includes at least one of: flight controller, positioning unit, barometer, image sensor, wireless communication device.

Claim 51 according to any one of claims 37 to 40: the mobile platform further comprises:

According to claim 52 of claim 51: the mobile platform further comprises an operating voltage receiving terminal which is used for being electrically connected with the plurality of batteries and receiving operating voltage provided by the plurality of batteries.

According to claim 53 of claim 52: the isolator includes two link and a control end, two the link respectively with communication terminal and power controller electricity is connected, the control end with operating voltage receiving terminal electricity is connected, works as the control end passes through operating voltage receiving terminal receives operating voltage, the two link of isolator switches on, makes communication terminal with power controller electricity is connected.

According to claim 54 of claim 53: when the isolator is in a conducting state, signals transmitted between the two connecting ends have no time delay and no distortion;

Claim 55 according to any one of claims 37 to 40: the electrical parameter at least comprises residual capacity, and the power controller is further configured to determine total residual capacity of the battery in an effective power supply state in the plurality of batteries according to the battery residual capacity acquired by the communication terminal.

Technical means 56 according to technical means 55: when the power controller acquires the current residual electric quantity of all the batteries, determining that all the batteries are in an effective power supply state currently, and determining the sum of the residual electric quantity of all the batteries as the total residual electric quantity;

Technical solution 57 according to technical solution 55: the electrical parameters further comprise working current, and the power controller determines the sum of the residual electric quantities of all the batteries which are acquired currently as the total residual electric quantity when the current residual electric quantity of part of the batteries is not acquired and the working current of the battery which is acquired currently has rising jump of a first preset multiple;

According to claim 58 of claim 57: when the current residual capacity of part of the batteries is not acquired and the currently acquired working current of the batteries has rising jump of a first preset multiple, the power controller determines that the part of the batteries, the current residual capacity of which is not acquired, is in an invalid power supply state and determines that other batteries are in an effective power supply state;

Technical means 59 according to technical means 57 or 58: the number of the batteries is two, and the first preset multiple is 1.5 times.

Solution 60 according to solution 57 or 58: the electrical parameters further comprise total charging capacity, and the power supply controller determines the difference value between the residual capacity of the partial batteries obtained at the previous moment and a second preset multiple of the total charging capacity of the partial batteries as the current residual capacity of the partial batteries when estimating the current residual capacity of the partial batteries;

Technical means 61 according to technical means 55: the electrical parameters further include total charging capacity, the power controller further calculates the sum of the total charging capacity of all the batteries according to the obtained total charging capacity of each battery, and calculates the ratio of the total remaining capacity of the plurality of batteries to the sum of the total charging capacity according to the sum of the total remaining capacity and the total charging capacity.

Technical means 62 according to technical means 61: the mobile platform further comprises an electric quantity display unit in communication connection with the power controller, and the power controller transmits and controls the electric quantity display unit to display electric quantity according to the ratio.

Claim 63 according to any one of claims 37 to 40: the power controller also sends signals for acquiring the electrical parameters of the batteries to the plurality of batteries through the communication terminal so as to actively acquire the electrical parameters of the batteries.

The present disclosure provides technical solution 64: an electric device comprises a mobile platform and a plurality of batteries for supplying power to the mobile platform, wherein each battery comprises a communication interface and a battery controller, and the mobile platform comprises a communication terminal and a power controller;

This disclosure provides a technical scheme 65: an electric device comprises a mobile platform and a plurality of batteries for supplying power to the mobile platform, wherein each battery comprises a communication interface and a battery controller, and the mobile platform comprises a communication terminal and a power controller;

This disclosure provides technical scheme 67: an electric device comprises a mobile platform and a plurality of batteries for supplying power to the mobile platform, wherein each battery comprises a communication interface and a battery controller, and the mobile platform comprises a communication terminal and a power controller;

This disclosure provides technical solution 68: an electric device comprises a mobile platform and a plurality of batteries for supplying power to the mobile platform, wherein each battery comprises a communication interface and a battery controller, and the mobile platform comprises a communication terminal and a power controller;

This disclosure provides technical solution 69: an electric device comprises a mobile platform and a plurality of batteries for supplying power to the mobile platform, wherein each battery comprises a communication interface and a battery controller, and the mobile platform comprises a communication terminal and a power controller;

Technical means 70 according to any one of technical means 64 to 79: the battery controller is configured to be normally open powered at a safe voltage.

Technical means 71 according to any one of technical means 64 to 79: the battery controller is configured to automatically output a safe voltage when electrically connected with the mobile platform.

Technical means 72 according to any one of technical means 64 to 79: the battery also comprises a shell and a battery cell accommodated in the shell, and the battery controller is electrically connected with the battery cell and arranged in the shell.

Technical means 73 according to technical means 72: the battery controller comprises a power supply management unit and a voltage output control circuit, wherein the power supply management unit is used for determining the type of voltage to be output by the battery according to the type of the voltage output control signal received by the communication interface; and the voltage output control circuit generates a corresponding voltage output instruction according to the voltage type determined by the power management unit.

Claim 74 according to any one of claims 64 to 79: the voltage output control signal comprises a safe voltage output control signal, and the battery controller generates a safe voltage output instruction according to the safe voltage output control signal so as to control the battery to output safe voltage;

According to claim 75 of claim 72: the battery also comprises a connection state detection interface which is used for being electrically connected with the mobile platform and receiving an on-position signal when being electrically connected with the mobile platform; the battery controller is electrically connected with the connection state detection interface and detects the in-place signal on the connection state detection interface in real time;

Technical means 76 according to any one of technical means 64 to 79: the battery also comprises a power supply key, the battery controller is electrically connected with the power supply key, and the battery controller generates a safe voltage output instruction when receiving a pressing signal that the power supply key of the mobile platform or the power supply key of the battery is pressed so as to control the battery at the position to output safe voltage.

Technical means 77 according to technical means 72: the battery further comprises a power supply key and an indicating unit, a power supply controller of the mobile platform is respectively connected with the power supply key and the indicating unit, the electrical parameters at least comprise current residual electric quantity and total charging electric quantity, the power supply controller of the mobile platform is used for obtaining the current residual electric quantity and the total charging electric quantity of the battery, calculating the ratio of the current residual electric quantity to the total charging electric quantity, and sending the ratio to the indicating unit for displaying the electric quantity when detecting a pressing signal that the power supply key is pressed.

Technical means 78 according to any one of technical means 64 to 79: the battery also comprises an indicating unit, the communication interface also receives an alarm prompt signal sent by the power controller and sends the alarm prompt signal to the battery controller, and the battery controller controls the indicating unit to give an alarm prompt.

Technical solution 79 according to any one of technical solutions 64 to 79: the battery controller also generates an operation voltage output stopping instruction when the communication interface receives a shutdown control signal for controlling the mobile platform to be shut down so as to control the battery to stop outputting the operation voltage.

According to claim 74 or claim 79, claim 80: the battery controller also generates a safe voltage output instruction after controlling the battery to stop outputting the operating voltage so as to control the battery to output the safe voltage.

According to claim 81 of claim 80: the battery controller also generates a shutdown instruction after controlling the battery to stop outputting the operating voltage so as to control the battery to shut down and stop outputting any power supply voltage.

According to claim 82 of claim 72: the battery further includes:

Technical means 83 according to any one of technical means 64 to 79: the communication interface actively acquires the electrical parameters of the battery and actively sends the electrical parameters to the power controller of the mobile platform;

Technical means 84 according to any one of technical means 64 to 79: the power supply controller judges whether the electrical parameter of the battery acquired by the communication terminal meets a preset condition or not, and generates a safe voltage output control signal when the acquired electrical parameter of the battery does not meet the preset condition, or/and generates an operating voltage output control signal when the acquired electrical parameter of the battery meets the preset condition.

Claim 85 according to claim 84: the electrical parameters comprise voltage values, the power controller determines difference values between the voltage values of each battery and the voltage values of other batteries respectively, determines a maximum value from the difference values, determines that the obtained electrical parameters of the batteries do not meet the preset conditions when the maximum value is larger than or equal to a preset value, or/and determines that the obtained electrical parameters of the batteries meet the preset conditions when the maximum value is smaller than the preset value.

According to claim 86 of claim 84: the electrical parameters comprise residual electric quantity, the power controller determines difference values between the residual electric quantity of each battery and the residual electric quantities of other batteries respectively, determines a maximum value from the difference values, determines that the obtained electrical parameters of the batteries do not meet the preset conditions when the maximum value is larger than or equal to a preset value, or/and determines that the obtained electrical parameters of the batteries meet the preset conditions when the maximum value is smaller than the preset value.

According to claim 87 of claim 84: and the power supply controller also generates an alarm prompt signal when the obtained electrical parameters of the battery are determined not to meet the preset conditions, and sends the alarm prompt signal to the battery controller so as to control the battery to carry out alarm prompt.

Technical solution 88 according to any one of technical solutions 64 to 79: the power supply controller is further used for generating an operation voltage output stopping control signal when receiving a shutdown signal for controlling the mobile platform to be shut down, and sending the operation voltage output stopping control signal to each battery so as to control each battery to stop outputting the operation voltage.

Technical solution 89 according to any one of technical solutions 64 to 79: the mobile platform further comprises:

the power device is used for providing driving power for the mobile platform;

According to claim 90 of claim 89: the mobile platform is an unmanned aerial vehicle, and the power device is used for providing flight power for the unmanned aerial vehicle.

Technical means 91 according to any one of technical means 64 to 79: the mobile platform further comprises:

Technical means 92 according to technical means 91: the mobile platform further comprises an operating voltage receiving terminal which is used for being electrically connected with the plurality of batteries and receiving operating voltage provided by the plurality of batteries.

Technical means 93 according to technical means 92: the isolator includes two link and a control end, two the link respectively with communication terminal and power controller electricity is connected, the control end with operating voltage receiving terminal electricity is connected, works as the control end passes through operating voltage receiving terminal receives operating voltage, the two link of isolator switches on, makes communication terminal with power controller electricity is connected.

According to claim 94 of claim 93: when the isolator is in a conducting state, signals transmitted between the two connecting ends have no time delay and no distortion;

Technical means 95 according to any one of technical means 64 to 79: the electrical parameter at least comprises residual capacity, and the power controller is further configured to determine total residual capacity of the battery in an effective power supply state in the plurality of batteries according to the battery residual capacity acquired by the communication terminal.

According to claim 96 of claim 95: when the power controller acquires the current residual electric quantity of all the batteries, determining that all the batteries are in an effective power supply state currently, and determining the sum of the residual electric quantity of all the batteries as the total residual electric quantity;

Technical means 97 according to technical means 95: the electrical parameters further comprise working current, and the power controller determines the sum of the residual electric quantities of all the batteries which are acquired currently as the total residual electric quantity when the current residual electric quantity of part of the batteries is not acquired and the working current of the battery which is acquired currently has rising jump of a first preset multiple;

Technical means 98 according to technical means 97: when the current residual capacity of part of the batteries is not acquired and the currently acquired working current of the batteries has rising jump of a first preset multiple, the power controller determines that the part of the batteries, the current residual capacity of which is not acquired, is in an invalid power supply state and determines that other batteries are in an effective power supply state;

According to claim 99 of claim 97 or 98: the number of the batteries is two, and the first preset multiple is 1.5 times.

Technical solution 100 according to technical solution 97 or 98: the electrical parameters further comprise total charging capacity, and the power supply controller determines the difference value between the residual capacity of the partial batteries obtained at the previous moment and a second preset multiple of the total charging capacity of the partial batteries as the current residual capacity of the partial batteries when estimating the current residual capacity of the partial batteries;

According to claim 101 of claim 95: the electrical parameters further include total charging capacity, the power controller further calculates the sum of the total charging capacity of all the batteries according to the obtained total charging capacity of each battery, and calculates the ratio of the total remaining capacity of the plurality of batteries to the sum of the total charging capacity according to the sum of the total remaining capacity and the total charging capacity.

According to claim 102 of claim 101: the mobile platform further comprises an electric quantity display unit in communication connection with the power controller, and the power controller controls the electric quantity display unit to display electric quantity according to the ratio.

Technical solution 103 according to any one of technical solutions 64 to 79: the power controller also sends signals for acquiring the electrical parameters of the batteries to the plurality of batteries through the communication terminal so as to actively acquire the electrical parameters of the batteries.

Finally, it should be noted that the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

The disclosure of this patent document contains material which is subject to copyright protection. The copyright is owned by the copyright owner. The copyright owner has no objection to the facsimile reproduction by anyone of the patent document or the patent disclosure, as it appears in the patent and trademark office official records and records.

Claims

1. A battery management system for managing the voltage output of a battery, characterized by: the battery management system includes:

2. A battery management system for managing the voltage output of a battery, characterized by: the battery management system includes:

3. The battery management system according to claim 1 or 2, wherein: the battery controller comprises a voltage output control circuit and the power management unit; the power supply management unit is respectively and electrically connected with the communication interface and the voltage output control circuit,

4. The battery management system of claim 3, wherein: the electrical parameter comprises at least one of: voltage value, residual capacity, total charge capacity, working current and service life of the battery.

5. The battery management system of claim 3, wherein: the voltage output control signal comprises a safe voltage output control signal, and the battery controller generates a safe voltage output instruction according to the safe voltage output control signal so as to control the battery to output a safe voltage;

6. The battery management system of claim 5, wherein: the value range of the safe voltage is 3.3V-17.8V;

or/and the value range of the operating voltage is 18V-26.3V.

7. The battery management system of claim 3, wherein: the battery management system also comprises a connection state detection interface which is used for being electrically connected with the mobile platform and receiving an on-position signal when being electrically connected with the mobile platform;

8. The battery management system of claim 7, wherein: the in-place signal is a direct current voltage signal or a pulse signal from the mobile platform.

9. The battery management system of claim 3, wherein: the battery also comprises a power supply key, the battery controller is electrically connected with the power supply key, and the battery controller generates a safe voltage output instruction when receiving a pressing signal that the power supply key of the mobile platform or the power supply key of the battery is pressed so as to control the battery to output safe voltage.

10. The battery management system according to claim 1 or 2, wherein: the battery further comprises a power supply key and an indicating unit, a power supply controller of the mobile platform is respectively connected with the power supply key and the indicating unit, the electrical parameters at least comprise current residual electric quantity and total charging electric quantity, the power supply controller of the mobile platform is used for obtaining the current residual electric quantity and the total charging electric quantity of the battery, calculating the ratio of the current residual electric quantity to the total charging electric quantity, and sending the ratio to the indicating unit for displaying the electric quantity when detecting a pressing signal that the power supply key is pressed.