CN106125005A - A kind of battery power detection circuit, electric motor car panel and light electric vehicle - Google Patents
A kind of battery power detection circuit, electric motor car panel and light electric vehicle Download PDFInfo
- Publication number
- CN106125005A CN106125005A CN201610783778.3A CN201610783778A CN106125005A CN 106125005 A CN106125005 A CN 106125005A CN 201610783778 A CN201610783778 A CN 201610783778A CN 106125005 A CN106125005 A CN 106125005A
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- CN
- China
- Prior art keywords
- battery
- motor car
- resistance
- electric
- electric motor
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
- B60L50/64—Constructional details of batteries specially adapted for electric vehicles
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Abstract
The present invention is applicable to electronic applications, providing a kind of battery power detection circuit, electric motor car panel and light electric vehicle, this circuit includes: switch element, for turning on when electric motor car starts, it controls end and is connected with electric motor car main control chip, and its input is connected with battery；Electric power detection unit, for carrying out battery electric quantity detection when switching means conductive, generates electric power detection signal, and its input is connected with the outfan of switch element, and its outfan is connected with electricity display device.The present invention passes through switch element when electric motor car does not works idle, cut off the connection of electric power detection unit and battery, stop battery electric quantity detection, thus reduce electric motor car kwh loss when idle, make vehicle battery electric quantity in the case of long storage time is idle be difficult to exhaust, extend battery life.
Description
Technical field
The invention belongs to electronic applications, particularly relate to a kind of battery power detection circuit, electric motor car panel and Portable electric
Motor-car.
Background technology
Along with the development of new forms of energy, electric motor car has been increasingly becoming daily walking-replacing tool, and some are light and continuation of the journey course is short
Two wheeler or balance car the most more for certain playability, one of recreation tool also becoming people while riding instead of walk,
Because of reasons such as vehicle body is light, compact structure inside these motor-cycle for travellings, its battery capacity is generally little compared with electric motor car of riding instead of walk, typically
For between 4Ah～15Ah, avoid the embarrassment of short distance trip no electricity, panel circuit part to preferably detect the state of battery
It is usually constructed with a battery detection circuit and detects battery electric quantity at any time, to point out user before travel the need of charging.
But, existing battery detection circuit is not when vehicle works, and the divider resistance in bleeder circuit the most persistently disappears
Consumption battery electric quantity, and power consumption is relatively big, its quiescent current is up to milliampere level so that vehicle is longer in standby time or inventory time relatively
In the case of length, there is the hidden danger of dead battery capability, once battery electric quantity excessively drains producing battery expendable
Damage, affects battery, and the portable electric vehicle less than normal especially for battery capacity and balance car become apparent from.
Summary of the invention
The purpose of the embodiment of the present invention is to provide a kind of battery power detection circuit, it is intended to solve existing battery detecting electricity
Road power consumption when vehicle does not works is excessive, the problem affecting battery.
The embodiment of the present invention is achieved in that a kind of battery power detection circuit, with battery, electric motor car main control chip and
Electricity display device connects, and described circuit includes:
Switch element, for receive when power supply opens signal turn on, do not receive when power supply opens signal turn off,
Described power supply is opened signal and is exported when electric motor car starts by described electric motor car main control chip, the control end of described switch element with
One outfan of described electric motor car main control chip connects, and the input of described switch element is connected with described battery；
Electric power detection unit, for carrying out battery electric quantity detection when described switching means conductive, generates electric power detection letter
Number, the input of described electric power detection unit is connected with the outfan of described switch element, the output of described electric power detection unit
End is connected with described electricity display device.
The another object of the embodiment of the present invention is, it is provided that a kind of electric motor car control including above-mentioned battery power detection circuit
Making sheet, described electric motor car panel also includes that power supply circuits, described battery power detection circuit share with described power supply circuits
One switch element, described power supply circuits also include supply control unit, the power supply Enable Pin of described supply control unit and institute
The outfan stating switch element connects, and the power end of described supply control unit is connected with described battery, described power supply control list
The outfan of unit is connected with the power end of described electric motor car main control chip.
The another object of the embodiment of the present invention is, it is provided that a kind of light electric vehicle including above-mentioned electric motor car panel.
The embodiment of the present invention when electric motor car does not works idle, cuts off electric power detection unit and battery by switch element
Connect, stop battery electric quantity detection, thus reduce electric motor car kwh loss when idle, make vehicle in long storage time not work
In the case of work, battery electric quantity is difficult to exhaust, and extends battery life.
Accompanying drawing explanation
The structure chart of the battery power detection circuit that Fig. 1 provides for the embodiment of the present invention；
The exemplary circuit figure of the battery power detection circuit that Fig. 2 provides for the embodiment of the present invention；
The circuit structure diagram of the electric motor car panel that Fig. 3 provides for the embodiment of the present invention.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, right
The present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, and
It is not used in the restriction present invention.If additionally, technical characteristic involved in each embodiment of invention described below
The conflict of not constituting each other just can be mutually combined.
The embodiment of the present invention when electric motor car does not works idle, cuts off electric power detection unit and battery by switch element
Connect, stop battery electric quantity detection, thus reduce electric motor car kwh loss when idle, make vehicle in long storage time not work
In the case of work, battery electric quantity is difficult to exhaust, and extends battery life.
Fig. 1 shows the structure of the battery power detection circuit that the embodiment of the present invention provides, and for convenience of description, only illustrates
Part related to the present invention.
As one embodiment of the invention, this battery power detection circuit can apply to electric motor car, is particularly suited for light
In electric motor car and electrodynamic balance car, this battery power detection circuit is connected with electric motor car main control chip and electricity display device,
The running status of this electric motor car main control chip detection electric motor car, when electric motor car starts, out-put supply opens signal, and this electricity shows
Showing the battery electric quantity of equipment display electric motor car, this battery power detection circuit includes:
Switch element 11, for the conducting (when electric motor car starts) when receiving power supply and opening signal, is not receiving electricity
When signal is opened in source, (when electric motor car leaves unused) turns off, the outfan controlling end and electric motor car main control chip of this switch element 11
Connecting, the input of switch element 11 is connected with battery；
Electric power detection unit 12, for carrying out battery electric quantity detection when switch element 11 turns on, generates electric power detection letter
Number, the input of this electric power detection unit 12 is connected with the outfan of switch element 11, the outfan of electric power detection unit 12 with
The electricity display device of electric motor car connects.
In embodiments of the present invention, the running status of electric motor car can be divided into deposits (leaving unused) state and starting state,
During vehicle starting up, the main control chip in electric vehicle control circuit sends a lasting power supply to switch element 11 and opens letter
Number, representing that electric motor car is in starting state, switch element 11 receives after power supply opens signal and maintains conducting, now electricity inspection
Surveying unit 12 and battery just carries out electric power detection, output electric power detection signal is to electricity display device；
And after vehicle shuts down, entering idle (depositing) state, main control chip receives pass machine testing signal, thus stops defeated
Going out power supply and open signal, switch element 11 is not owing to maintaining its signal turned on to turn off, so that battery and electric power detection
Unit 12 separated, electric power detection unit 12 cannot be carried out electric power detection, does not the most consume battery electric quantity, so that vehicle
The long period can be deposited and internal cell electricity can't too fast exhaust, extend the life-span of battery.
The embodiment of the present invention when electric motor car does not works idle, cuts off electric power detection unit and battery by switch element
Connect, stop battery electric quantity detection, thus reduce electric motor car kwh loss when idle, make vehicle in long storage time not work
In the case of work, battery electric quantity is difficult to exhaust, and extends battery life.
Fig. 2 shows the exemplary circuit structure of the battery power detection circuit that the embodiment of the present invention provides, for the ease of saying
Bright, illustrate only part related to the present invention.
As one embodiment of the invention, switch element 11 includes:
Resistance R87, resistance R88, resistance R100, the first switching tube Q1 and second switch pipe Q2；
One end of resistance R87 is the control end of switch element 11, the other end of resistance R87 and the control of the first switching tube Q1
End connects, and the current input terminal of the first switching tube Q1 is connected with one end of resistance R88, and the current output terminal of the first switching tube Q1 connects
Ground, the other end of resistance R88 is connected with one end controlling end and resistance R100 of second switch pipe Q2 simultaneously, and resistance R100's is another
One end is that the input of switch element 11 is connected with the current input terminal of second switch pipe Q2, the electric current output of second switch pipe Q2
End is the outfan of switch element 11.
Preferably, the first switching tube Q1 is NPN type triode, the current collection of NPN type triode the extremely first switching tube Q1's
Current input terminal, the current output terminal of the transmitting of NPN type triode the extremely first switching tube Q1, the base stage of NPN type triode is
The control end of the first switching tube Q1；Second switch pipe Q2 is PNP type triode, the transmitting of PNP type triode extremely second switch
The current input terminal of pipe Q2, the current output terminal of the current collection of PNP type triode extremely second switch pipe Q2, PNP type triode
Base stage is the control end of second switch pipe Q2.
In embodiments of the present invention, when power supply open signal be low level time, first switching tube Q1 cut-off, the first switching tube
The current input terminal of Q1 is high level, and second switch pipe Q2 ends, thus cuts off the company between battery and electric power detection unit 12
Connect.
Electric power detection unit 12 includes:
Resistance R89, resistance R90, resistance R91, electric capacity C46；
One end of resistance R90 is the input of electric power detection unit 12, the other end of resistance R90 simultaneously with resistance R91, electricity
Hold C46, one end of resistance R89 connects, the other end of resistance R91 and electric capacity C46 ground connection simultaneously, and the other end of resistance R89 is electricity
The outfan of amount detection unit 12.
In embodiments of the present invention, electric power detection unit 12 can use voltage-dividing detection circuit to realize, and does not opens in electric motor car
Time dynamic, divider resistance does not consume battery electric quantity, thus reduces electric motor car kwh loss when idle.
The embodiment of the present invention when electric motor car does not works idle, cuts off electric power detection unit and battery by switch element
Connect, stop battery electric quantity detection, thus reduce electric motor car kwh loss when idle, make vehicle in long storage time not work
In the case of work, battery electric quantity is difficult to exhaust, and extends battery life.
Fig. 3 shows the circuit structure of the electric motor car panel that the embodiment of the present invention provides, and for convenience of description, only illustrates
Part related to the present invention.
As one embodiment of the invention, electric motor car panel includes battery power detection circuit 1 He in above-described embodiment
Power supply circuits 2, these power supply circuits 2 include in switch element 11 and supply control unit 22, and battery power detection circuit 1
Switch element 11 and the switch element 11 in power supply circuits 2 are for sharing relation, i.e. battery power detection circuit 1 and power supply circuits 2
Sharing a switch element 11, the power supply Enable Pin of supply control unit 22 is connected with the outfan of switch element 11, for automatically controlled
The power end of unit 22 processed is connected with battery, and the outfan of supply control unit 22 connects with the power end of electric motor car main control chip
Connect.
In embodiments of the present invention, supply control unit 22 includes power supply chip and peripheral function circuit thereof, and it connects pass
System can build according to the actual requirements, does not the most limit.
The embodiment of the present invention, by the switch element multiplexing of power supply circuits in electric motor car panel, is examined simultaneously as battery electric quantity
Switch element in slowdown monitoring circuit, when electric motor car does not works idle, cuts off the connection of electric power detection unit and battery, stops battery
Electric power detection, thus reduce electric motor car kwh loss when idle, extend battery life, and be not required to additionally increase unit's device
Part, simple circuit, it is achieved low cost.
The another object of the embodiment of the present invention is, it is provided that a kind of light electric vehicle including above-mentioned electric motor car panel.
These are only presently preferred embodiments of the present invention, not in order to limit the present invention, all spirit in the present invention and
Any amendment, equivalent and the improvement etc. made within principle, should be included within the scope of the present invention.
Claims (6)
1. a battery power detection circuit, it is characterised in that described circuit shows with battery, electric motor car main control chip and electricity
Equipment connects, and described circuit includes:
Switch element, for receive when power supply opens signal turn on, do not receive when power supply opens signal turn off, described
Power supply is opened signal and is exported when electric motor car starts by described electric motor car main control chip, and the control end of described switch element is with described
One outfan of electric motor car main control chip connects, and the input of described switch element is connected with described battery；
Electric power detection unit, for carrying out battery electric quantity detection when described switching means conductive, generates electric power detection signal, institute
The outfan of the input and described switch element of stating electric power detection unit is connected, the outfan of described electric power detection unit and institute
State electricity display device to connect.
2. circuit as claimed in claim 1, it is characterised in that described switch element includes:
Resistance R87, resistance R88, resistance R100, the first switching tube and second switch pipe；
The control end that one end is described switch element of described resistance R87, the other end of described resistance R87 and described first switch
The control end of pipe connects, and the current input terminal of described first switching tube is connected with one end of described resistance R88, described first switch
The current output terminal ground connection of pipe, the other end of described resistance R88 simultaneously with control end and the described resistance of described second switch pipe
One end of R100 connects, the input that the other end is described switch element of described resistance R100 and the electricity of described second switch pipe
Stream input connects, the outfan that current output terminal is described switch element of described second switch pipe.
3. circuit as claimed in claim 2, it is characterised in that described first switching tube is NPN type triode, described NPN type
The current input terminal of the most described first switching tube of current collection of audion, the transmitting the most described first of described NPN type triode
The current output terminal of switching tube, the base stage of described NPN type triode is the control end of described first switching tube；
Described second switch pipe is PNP type triode, the electric current of the transmitting the most described second switch pipe of described PNP type triode
Input, the current output terminal of the current collection the most described second switch pipe of described PNP type triode, described PNP type triode
Base stage is the control end of described second switch pipe.
4. circuit as claimed in claim 1, it is characterised in that described electric power detection unit includes:
Resistance R89, resistance R90, resistance R91, electric capacity C46；
One end of described resistance R90 is the input of described electric power detection unit, and the other end of described resistance R90 is simultaneously with described
Resistance R91, described electric capacity C46, one end of described resistance R89 connect, and the other end of described resistance R91 and described electric capacity C46 is same
Time ground connection, the other end of described resistance R89 is the outfan of described electric power detection unit.
5. an electric motor car panel, it is characterised in that described electric motor car panel include power supply circuits and as claim 1 to
Battery power detection circuit described in 4 any one, described battery power detection circuit and described power supply circuits share one and open
Closing unit, described power supply circuits also include supply control unit, the power supply Enable Pin of described supply control unit and described switch
The outfan of unit connects, and the power end of described supply control unit is connected with described battery, described supply control unit defeated
Go out end to be connected with the power end of described electric motor car main control chip.
6. a light electric vehicle, it is characterised in that described light electric vehicle includes that electric motor car as claimed in claim 5 controls
Plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610783778.3A CN106125005A (en) | 2016-08-31 | 2016-08-31 | A kind of battery power detection circuit, electric motor car panel and light electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610783778.3A CN106125005A (en) | 2016-08-31 | 2016-08-31 | A kind of battery power detection circuit, electric motor car panel and light electric vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN106125005A true CN106125005A (en) | 2016-11-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610783778.3A Pending CN106125005A (en) | 2016-08-31 | 2016-08-31 | A kind of battery power detection circuit, electric motor car panel and light electric vehicle |
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| CN (1) | CN106125005A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109398153A (en) * | 2018-11-15 | 2019-03-01 | 重庆工业职业技术学院 | The control device and control method of battery capacity |
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| CN105322625A (en) * | 2014-07-30 | 2016-02-10 | 广东高标电子科技有限公司 | Power supply circuit and electric vehicle |
| CN105375567A (en) * | 2015-11-16 | 2016-03-02 | 深圳还是威健康科技有限公司 | Power quantity measuring circuit and terminal |
| CN206161816U (en) * | 2016-08-31 | 2017-05-10 | 广东高标电子科技有限公司 | Battery power detection circuitry , electric motor car control panel and light electric motor car |
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2016
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Patent Citations (5)
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| KR20100022599A (en) * | 2008-08-20 | 2010-03-03 | 영남대학교 산학협력단 | Full digital capacitive sensor for touch key applications and operating method thereof |
| CN201477197U (en) * | 2009-06-05 | 2010-05-19 | 四川长虹电器股份有限公司 | Automatic battery capacity detector |
| CN105322625A (en) * | 2014-07-30 | 2016-02-10 | 广东高标电子科技有限公司 | Power supply circuit and electric vehicle |
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| CN109398153A (en) * | 2018-11-15 | 2019-03-01 | 重庆工业职业技术学院 | The control device and control method of battery capacity |
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Application publication date: 20161116 |