CN105244978A - Unmanned aerial vehicle battery management system and method - Google Patents
Unmanned aerial vehicle battery management system and method Download PDFInfo
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- CN105244978A CN105244978A CN201510818763.1A CN201510818763A CN105244978A CN 105244978 A CN105244978 A CN 105244978A CN 201510818763 A CN201510818763 A CN 201510818763A CN 105244978 A CN105244978 A CN 105244978A
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Abstract
The invention discloses an unmanned aerial vehicle battery management system and a method. The system comprises a high-discharging rate electric core group, a low-discharging rate electric core group, a control circuit which is connected with the high-discharging rate electric core group and the low-discharging rate electric core group respectively for controlling switching and matching of the high-discharging rate electric core group and the low-discharging rate electric core group, a flight controller which is used for transmitting flight state information and control information to the control circuit, and a power output end which is controlled by the control circuit, wherein a fully-controlled semiconductor device is arranged in the control circuit. Power output of electric cores of different specifications is dynamically adjusted according to different power demands, and the comprehensive power utilization rate is improved.
Description
Technical field
The present invention relates to unmanned plane battery apparatus, in particular a kind of unmanned plane battery management system and method.
Background technology
By current existing battery technology limit value, discharge-rate and energy density are inversely proportional to, and both battery discharge multiplying power was higher, energy density is less.The unmanned plane electric current required when floating state or smooth flight is less, big-movement climb or high-speed flight time required electric current can be several times as much as floating state, so the battery that existing unmanned plane is equipped with is the single specification lithium cell compared with high-discharge-rate.
Existing unmanned plane power-supply management system comprises control chip, sample circuit, MOSFET etc.; by the detection of control chip to sample circuit; corresponding protection can be provided when battery core overvoltage, under-voltage, overcurrent by on/off MOSFET, and balance the voltage of each battery core when charging.The built-in memory of control chip can record the discharge and recharge information of battery and fault message reads for external equipment.
Existing product management mode is single, only can manage the battery pack that the battery core of single specification forms.Be limited by current battery technology limit value, inversely, when needs high-multiplying power discharge, battery core energy density will decline for discharge-rate and energy density.Because unmanned plane needs larger electric current in high-speed flight or when climbing, the existing unmanned plane of the stability in order to safeguards system battery all uses the high-multiplying power discharge battery core of same specification to form, and causes mean energy density on the low side, finally causes cruising time on the low side.
Therefore, prior art existing defects, needs to improve.
Summary of the invention
Technical problem to be solved by this invention is: providing a kind of can export according to the electric power of different need for electricity dynamic conditioning different size battery cores, thus improves unmanned plane battery management system and the method for electricity comprehensive utilization ratio.
Technical scheme of the present invention is as follows: a kind of unmanned plane battery management system, comprise high-discharge-rate battery core group, low discharge multiplying power battery core group, be connected respectively with high-discharge-rate battery core group and low discharge multiplying power battery core group, and for the control circuit of the switch and proportioning that control high-discharge-rate battery core group and low discharge multiplying power battery core group, for the flight controller that state of flight information and control information passed to control circuit and the power output end controlled by control circuit; Wherein, full-control type semiconductor device is provided with in control circuit.
Be applied to technique scheme, in described unmanned plane battery management system, the battery core battery that high-discharge-rate battery core group and low discharge multiplying power battery core group adopt is respectively Ni-MH battery or lead-acid battery or lithium battery or super capacitor or flying wheel battery
.
Be applied to each technique scheme, in described unmanned plane battery management system, high-discharge-rate battery core group is set to high-discharge-rate lithium cell group, its energy density is 180-200Wh/kg, low discharge multiplying power battery core group is set to low discharge multiplying power lithium cell group, and its energy density is 250-260Wh/kg.
Be applied to each technique scheme, in described unmanned plane battery management system, in control circuit, be provided with MOSFET/GTO/IGBT full-control type semiconductor device.
Be applied to each technique scheme, in described unmanned plane battery management system, each high-discharge-rate battery core group or each low discharge multiplying power battery core group are provided with at least two batteries.
Be applied to each technique scheme, a kind of unmanned plane battery management method, comprises following steps: A: flight controller controls the flight of unmanned plane, and state of flight information and control information are sent to control circuit; B: control circuit is analyzed flight attitude information and remote information, and judge power consumption needed for unmanned plane during flying; C: control circuit is power consumption needed for unmanned plane during flying, controls switch and the proportioning of high-discharge-rate battery core group and low discharge multiplying power battery core group, and out-put supply.
Be applied to each technique scheme, in described unmanned plane battery management method, in step C, the high-discharge-rate battery core group that control circuit controls is set to high-discharge-rate lithium cell group, and its energy density is 180-200Wh/kg; The low discharge multiplying power battery core group that control circuit controls is set to low discharge multiplying power lithium cell group, and its energy density is 250-260Wh/kg.
Be applied to each technique scheme, in described unmanned plane battery management method, control circuit analyzes state information and control information by arranging control chip, judge power consumption needed for unmanned plane during flying, and control the output of different electricity by arranging MOSFET/GTO/IGBT full-control type semiconductor device.
Adopt such scheme, the present invention can export according to the electric power of different need for electricity dynamic conditioning different size battery cores, thus improve the comprehensive utilization ratio of electricity, turning off high-discharge-rate battery core electric power to export when detecting that unmanned plane is in the lower state of the power consumption such as hovering/smooth flight, opening low discharge multiplying power battery core and exporting.Detect unmanned plane need to climb/power consumption such as rapid flight higher state of flight time open high-discharge-rate battery core and export, close low discharge multiplying power battery core and export, or can two kinds of battery cores export to provide abundant electric power for system simultaneously.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Present embodiments provide a kind of unmanned plane battery management system, as shown in Figure 1, unmanned plane battery management system comprises high-discharge-rate battery core group 1, low discharge multiplying power battery core group 2, control circuit 3, wherein, control circuit 3 is connected with high-discharge-rate battery core group and low discharge multiplying power battery core group respectively, and for the electricity switch that controls high-discharge-rate battery core group and low discharge multiplying power battery core group and proportioning, controller of aircraft 4 and power output end 5, controller of aircraft 4 is for passing to control circuit 3 by state of flight information and control information, control circuit carries out according to state of flight information and control information analyzing the power consumption judged required for output, then the electricity that power output end exports is controlled.
Such as, for two joint series battery, two kinds of different battery cores, high-discharge-rate battery core group 1 adopts high-discharge-rate (low energy densities) battery core, low discharge multiplying power battery core group 2 adopts low discharge multiplying power (high-energy-density) battery core, the battery core battery that high-discharge-rate battery core group and low discharge multiplying power battery core group adopt is respectively Ni-MH battery or lead-acid battery or lithium battery or super capacitor or flying wheel battery, and it is preferably lithium battery.Control circuit 3 and flight controller 4 real-time communication, flight controller by the command such as state information, control information to control circuit 3, can judge power consumption needed for UAS by the analysis for state information and control information.Because two groups of battery cores independently can be controlled by full-control type semiconductor device such as MOSFET/GTO/IGBT in control circuit 3, when detecting that unmanned plane is in the lower state of the power consumption such as hovering/smooth flight, turn off high-discharge-rate battery core electric power to export, open low discharge multiplying power battery core and export.Detect unmanned plane need to climb/power consumption such as rapid flight higher state of flight time, open high-discharge-rate battery core and export, close low discharge multiplying power battery core and export, or can two kinds of battery cores export to provide abundant electric power for system simultaneously.
Wherein, full-control type semiconductor device is a part for control circuit, and all the other also include micro-control unit, sample circuit etc., full-control type semiconductor device is a kind of type of device, include MOSFET, GTO, IGBT etc., and, be not limited only to MOSFET, GTO, IGBT.
The present embodiment additionally provides a kind of unmanned plane battery management method, wherein, comprises following steps:
First, steps A: flight controller controls the flight of unmanned plane, state of flight information and control information are sent to control circuit by aircraft while control unmanned plane during flying.Then step B: control circuit is after receiving the state of flight information and control information that aircraft sends, control circuit analyzes state information and control information by arranging control chip, judge the magnitude numerical value of power consumption needed for unmanned plane during flying, and control the output of different electricity by arranging MOSFET/GTO/IGBT full-control type semiconductor device.
Finally perform step C again: control circuit is power consumption needed for unmanned plane during flying, control switch and the proportioning of high-discharge-rate battery core group and low discharge multiplying power battery core group, and out-put supply, wherein, when detecting that unmanned plane is in the lower state of the power consumption such as hovering/smooth flight, turn off high-discharge-rate battery core electric power to export, open low discharge multiplying power battery core and export.Detect unmanned plane need to climb/power consumption such as rapid flight higher state of flight time, open high-discharge-rate battery core and export, close low discharge multiplying power battery core and export, or can two kinds of battery cores export to provide abundant electric power for system simultaneously.
Or in step C, the high-discharge-rate battery core group that control circuit controls is set to high-discharge-rate lithium cell group, and its energy density is 180-200Wh/kg; The low discharge multiplying power battery core group that control circuit controls is set to low discharge multiplying power lithium cell group, and its energy density is 250-260Wh/kg.
So, because unmanned plane is limited by current lithium battery industry energy density limit value cruising time, comparatively high-discharge-rate lithium cell energy density is generally 180-200Wh/kg, and low discharge multiplying power lithium cell energy density can reach 250-260Wh/kg.For the state of flight such as hovering/cruise of routine, required electric current is less, but the electricity needs when climb mode or high-speed flight can be increased sharply, in order to the need for electricity meeting this situation can only be forced to select high-discharge-rate lithium cell, cause integral energy density on the low side.The present embodiment is by the improvement to power-supply management system, variety classes battery core is together managed dynamic dispatching, because unmanned plane most time under regular flight condition is all in small area analysis demand scenes such as hovering/cruise, so can significantly improve the mean energy density of battery pack.Also can change the proportioning of battery core flexibly for different use scenes simultaneously, in the use scenes that mild flight is in the majority, improve low discharge multiplying power battery core ratio, in needs big-movement rapid flight scene, improve high-discharge-rate battery core ratio to reach best cruising time.
These are only preferred embodiment of the present invention, be not limited to the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. a unmanned plane battery management system, is characterized in that:
Comprise high-discharge-rate battery core group, low discharge multiplying power battery core group, be connected respectively with high-discharge-rate battery core group and low discharge multiplying power battery core group, and for the control circuit of the switch and proportioning that control high-discharge-rate battery core group and low discharge multiplying power battery core group, for the flight controller that state of flight information and control information passed to control circuit and the power output end controlled by control circuit;
Wherein, full-control type semiconductor device is provided with in control circuit.
2. unmanned plane battery management system according to claim 1, is characterized in that: the battery core battery that high-discharge-rate battery core group and low discharge multiplying power battery core group adopt is respectively Ni-MH battery or lead-acid battery or lithium battery or super capacitor or flying wheel battery.
3. unmanned plane battery management system according to claim 2, it is characterized in that high-discharge-rate battery core group is set to high-discharge-rate lithium cell group, its energy density is 180-200Wh/kg, low discharge multiplying power battery core group is set to low discharge multiplying power lithium cell group, and its energy density is 250-260Wh/kg:.
4. unmanned plane battery management system according to claim 1, is characterized in that: be provided with MOSFET/GTO/IGBT full-control type semiconductor device in control circuit.
5. unmanned plane battery management system according to claim 1, is characterized in that: each high-discharge-rate battery core group or each low discharge multiplying power battery core group are provided with at least two batteries.
6. a unmanned plane battery management method, is characterized in that, comprises following steps:
A: flight controller controls the flight of unmanned plane, and state of flight information and control information are sent to control circuit;
B: control circuit is analyzed flight attitude information and remote information, and judge power consumption needed for unmanned plane during flying;
C: control circuit is power consumption needed for unmanned plane during flying, controls switch and the proportioning of high-discharge-rate battery core group and low discharge multiplying power battery core group, and out-put supply.
7. unmanned plane battery management method according to claim 6, is characterized in that: in step C, and the high-discharge-rate battery core group that control circuit controls is set to high-discharge-rate lithium cell group, and its energy density is 180-200Wh/kg; The low discharge multiplying power battery core group that control circuit controls is set to low discharge multiplying power lithium cell group, and its energy density is 250-260Wh/kg.
8. unmanned plane battery management method according to claim 6, it is characterized in that: in step B: control circuit analyzes state information and control information by arranging control chip, judge power consumption needed for unmanned plane during flying, and control the output of different electricity by arranging MOSFET/GTO/IGBT full-control type semiconductor device.
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| CN108519607A (en) * | 2018-04-04 | 2018-09-11 | 江苏蒲公英无人机有限公司 | A kind of finding method of plant protection drone battery |
| CN108565506A (en) * | 2017-12-18 | 2018-09-21 | 广州亿航智能技术有限公司 | Unmanned plane battery and unmanned plane |
| CN109350882A (en) * | 2018-09-26 | 2019-02-19 | 山东科技大学 | A kind of high building fire-proof unmanned plane based on flying wheel battery |
| CN112448039A (en) * | 2019-09-05 | 2021-03-05 | 北京小米移动软件有限公司 | Lithium ion battery and lithium ion battery charging and discharging control method and device |
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| CN109350882A (en) * | 2018-09-26 | 2019-02-19 | 山东科技大学 | A kind of high building fire-proof unmanned plane based on flying wheel battery |
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Application publication date: 20160113 |