CN108521158A - A kind of commercial car dual power supply charge and discharge balancing management system and management method - Google Patents
A kind of commercial car dual power supply charge and discharge balancing management system and management method Download PDFInfo
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- CN108521158A CN108521158A CN201810462246.9A CN201810462246A CN108521158A CN 108521158 A CN108521158 A CN 108521158A CN 201810462246 A CN201810462246 A CN 201810462246A CN 108521158 A CN108521158 A CN 108521158A
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- controller
- acid accumulator
- electrolyte
- power supply
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
- H02J7/0014—Circuits for equalisation of charge between batteries
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
- H01M10/441—Methods for charging or discharging for several batteries or cells simultaneously or sequentially
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
- H02J7/0014—Circuits for equalisation of charge between batteries
- H02J7/0019—Circuits for equalisation of charge between batteries using switched or multiplexed charge circuits
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The present invention discloses a kind of commercial car dual power supply charge and discharge balancing management system and management method, pass through firing switch, power switch, generator, controller, first lead-acid accumulator, second lead-acid accumulator, first power supply relay, second source relay, and the first density of electrolyte sensor being arranged in the first lead-acid accumulator, first electrolyte temperature sensor, first electrolyte liquid level sensor, setting is provided with the second density of electrolyte sensor in the second lead-acid accumulator, second electrolyte temperature sensor, the mutual cooperation of second electrolyte liquid level sensor, solve the problems, such as that the mode for using manual mode two group storage batteries of switching to be connect with electricity consumption device or generator at this stage is cumbersome, extend service lifetime of accumulator simultaneously, reduce vehicle use cost simultaneously.
Description
Technical field
The present invention relates to accumulator cell charging and discharging management domains, and in particular to a kind of commercial car dual power supply charge and discharge balancing management
System and management method.
Background technology
With being continuously increased for commercial car electricity system, single group accumulator has been unable to meet the power demands of vehicle, now
Part commercial car has started that the mode of two group storage batteries parallel connection is used to be powered for vehicle load.Two group storage battery parallel connections are filled
Electricity, there are the overweight risks of Vehicular charging loop load, easily lead to the damage of charging circuit.Two group storage battery parallel discharges, are deposited
In the risk for leading to serious self discharge due to accumulator self performance difference, the service life of accumulator is influenced.It is more at this stage
It is connect with vehicle electricity consumption device using manual mode two group storage batteries of switching or is connect with generator, but this method operation fiber crops
It is tired, and be easy to cause battery discharging excessively or the problem of undercharge, shorten service lifetime of accumulator, cause vehicle use at
This increase.
Invention content
To solve so that two group storage batteries are connect or and generator with vehicle electricity consumption device by manual switching in commercial car
The problem of connection, troublesome in poeration and easy shortening service lifetime of accumulator, it is equal that the present invention provides a kind of commercial car dual power supply charge and discharge
The management system that weighs and management method.
The technical scheme is that：
A kind of commercial car dual power supply charge and discharge balancing management system, including firing switch, power switch, generator, control
Device, the first lead-acid accumulator, the second lead-acid accumulator, the first power supply relay, second source relay；First plumbic acid stores
The first density of electrolyte sensor, the first electrolyte temperature sensor, the first electrolyte liquid level sensor are provided in battery；Institute
It states and is provided with the second density of electrolyte sensor, the second electrolyte temperature sensor, the second electrolyte in the second lead-acid accumulator
Liquid level sensor；The B+ points of the generator connect one end of the first power supply relay contact, the first power supply relay contact
The other end connects the first lead acid battery positive electrode；Coil one end of first power supply relay connects the first acid accumulator negative pole lead,
The coil other end of first power supply relay connects controller；The B+ points of the generator are also connected with second source relay contact
One end, the other end of second source relay contact connects the second lead acid battery positive electrode；The coil of second source relay
One end connects the second acid accumulator negative pole lead, and the coil other end of second source relay connects controller；The generator
The cathode of the first lead-acid accumulator of cage connection, the cathode of the second lead-acid accumulator；The W points of the generator connect controller,
By the frequency signal transmission of generator to controller；The anode of first lead-acid accumulator, which is also connected by power switch, to be controlled
The power input of device, the ground wire of the cathode connection controller of the first lead-acid accumulator；Firing switch connects controller；Described
One density of electrolyte sensor, the first electrolyte temperature sensor, the first electrolyte liquid level sensor, the second density of electrolyte pass
Sensor, the second electrolyte temperature sensor, the second electrolyte liquid level sensor are all connected with the controller.
Further, the commercial car dual power supply charge and discharge balancing manages system, further includes engine controller, described
Engine controller connects the controller, and the tach signal of engine is transmitted to the controller.
Further, the controller is car body controller.
A kind of management method based on the commercial car dual power supply charge and discharge balancing system, includes the following steps：
Open power switch；
Judge operation state of generator：
When generator is in not generating state, what controller judged firing switch is opened or closed state：When starting is opened
When shutdown is opened, ratio and second lead acid storage battery of the controller according to the first lead-acid accumulator current electrolyte volume and rated capacity
The ratio of pond current electrolyte volume and rated capacity, the actuation or disconnected of the first power supply relay of control, second source relay
It opens；When firing switch is closed, controller controls the first power supply relay and is attracted and controls the actuation of second source relay；
When generator is in generating state, controller is according to the current electrolyte volume of the first lead-acid accumulator and specified appearance
The ratio of the ratio of amount and the second lead-acid accumulator current electrolyte volume and rated capacity, the first power supply relay of control, the
The actuation or disconnection of two power supply relays.
Further, the controller judges that operation state of generator refers to, controller is transmitted to according to generator W points
Frequency signal judges the operating status of generator, specially:When the frequency signal of the W of generator points is more than a, controller
Judgement generator is in generating state；When the W dot frequency signals of the generator are less than b, controller judgement generator is in
Not generating state；The value of described a, b are set separately according to matched generator mark, the difference of engine model.
Further, the controller judges that operation state of generator refers to, control is transmitted to according to engine controller
The engine rotational speed signal of device judges operation state of generator in turn, specially：When engine speed is more than c, controller is sentenced
Determine generator and is in generating state；When engine speed is less than d, controller judges that generator is in not generating state；It is described
C, the value of d is set separately according to the matched generator mark of commercial car, the difference of engine model.
Further, when generator is in not generating state and firing switch disconnects, controller is stored according to the first plumbic acid
The ratio and the current electrolyte volume of the second lead-acid accumulator of the current electrolyte volume of battery and rated capacity and rated capacity
Ratio, the method for controlling actuation or the disconnection of the first power supply relay, second source relay are specially：
Set the s seconds judgement time of controller；
If the current electrolyte volume of the first lead-acid accumulator and the ratio of rated capacity are more than or equal to M1When, controller control
The actuation of the first power supply relay is made, second source relay disconnects, the M1For the peace of the first lead acid battery charge must be given
Full threshold value；
If the current electrolyte volume of the first lead-acid accumulator and continuous s seconds of the ratio of rated capacity are less than or equal to M1And second
The current electrolyte volume of lead-acid accumulator and the ratio of rated capacity are more than M2When, it is disconnected that controller controls the first power supply relay
It opens, second source relay is attracted, the M2For the secure threshold of the second lead acid battery charge must be given；
If the current capacities of the first lead-acid accumulator and continuous s seconds of the ratio of rated capacity are less than or equal to M1And second plumbic acid
The current electrolyte volume of accumulator and continuous s seconds of the ratio of rated capacity are less than or equal to M2When, controller controls the first power supply
Relay is attracted, and second source relay is attracted.
Further, when generator is in generating state, controller holds according to the current electrolyte of the first lead-acid accumulator
The ratio of amount and the ratio and the second lead-acid accumulator current electrolyte volume and rated capacity of rated capacity controls the first power supply
The method of relay, the actuation of second source relay or disconnection is specially：
Set s ' seconds judgement time of controller；
If the current electrolyte volume of the first lead-acid accumulator and the ratio of rated capacity continuous s ' seconds are more than or equal to N1When,
Controller controls the first power supply relay and disconnects, the N1Decision threshold when being completed for the first lead acid battery charge；
If the current electrolyte volume of the second lead-acid accumulator and the ratio of rated capacity are less than or equal to L, controller control
First power supply relay is attracted, and second source relay disconnects, and the L is judgement threshold when meeting commercial car cold start requirement
Value；
If the current electrolyte volume of the first lead-acid accumulator and the ratio of rated capacity are more than N1' and the second lead-acid accumulator
Current electrolyte volume and rated capacity the ratio continuous s ' seconds be less than M2When, it is disconnected that controller controls the first power supply relay
It opens, second source relay is closed, the N1' it is cooperation M2The guarantee available threshold of first lead-acid accumulator of setting；
If the current electrolyte volume of the second lead-acid accumulator and the ratio of rated capacity are more than or equal to N2, controller control
Second source relay disconnects, the N2Decision threshold when being completed for the second lead acid battery charge.
Further, the current electrolyte volume of first lead-acid accumulator and the ratio of rated capacity are according to following public affairs
Formula calculating obtains：
C1'/C=1+ (pt1+0.0007t1- 25 × 0.0007-P25 °)/0.01 × 6% × h1’·S1/V1；
S in formula1For the floor space of the first lead-acid accumulator, V1For the nominal volume of the first lead-acid accumulator, P25 ° is normal
Numerical value 1.28, pt1For the current density of electrolyte value of the first density of electrolyte sensor acquisition, t1It is passed for the first electrolyte temperature
The current electrolyte temperature of sensor acquisition；h1' it is the current point solution liquid liquid level that the first electrolyte liquid level sensor acquires；
The current electrolyte volume of second lead-acid accumulator and the ratio of rated capacity take according to following formula calculating
：
C2'/C=1+ (pt2+0.0007t2- 25 × 0.0007-P25 °)/0.01 × 6% × h2’·S2/V2；
S in formula2For the floor space of the second lead-acid accumulator, V2For the nominal volume of the second lead-acid accumulator, P25 ° is normal
Numerical value 1.28, pt2For the current density of electrolyte value of the second density of electrolyte sensor acquisition, t2It is passed for the second electrolyte temperature
The current electrolyte temperature of sensor acquisition；h2' it is the current electrolyte liquid level that the second electrolyte liquid level sensor acquires.
The present invention provides pass through firing switch, power switch, generator, controller, engine controller, the first plumbic acid
Accumulator, the second lead-acid accumulator, the first power supply relay, second source relay, and be arranged in the first lead-acid accumulator
Interior the first density of electrolyte sensor, the first electrolyte temperature sensor, the first electrolyte liquid level sensor are arranged second
It is total that the second density of electrolyte sensor, the second electrolyte temperature sensor, the second electrolyte liquid level are provided in lead-acid accumulator
Isomorphism builds commercial car dual power supply charge and discharge balancing management system, while providing controller under specific situation and passing through the first electricity of control
The disconnection of source relay, second source relay completes the first lead-acid accumulator with the mode being attracted, the second lead-acid accumulator fills
Discharge management method, solve at this stage use manual mode switch two group storage batteries connect with vehicle electricity consumption device or with hair
Motor problem cumbersome when connecting, extends the service life of the first lead-acid accumulator, the second lead-acid accumulator, drops simultaneously
Low vehicle use cost.
Description of the drawings
Fig. 1 is the structural schematic diagram of commercial car dual power supply charge and discharge balancing management system in the present invention.
In figure：The first lead-acid accumulators of 1-, 2- the first density of electrolyte sensors, 3- the first electrolyte temperature sensors,
4- the first electrolyte liquid level sensors, the first power supply relays of 5-, 6- power switches, 7- firing switcies, 8- engine controllers,
9- second source relays, 10- the second electrolyte liquid level sensors, 11- the second electrolyte temperature sensors, 12- second are electrolysed
Liquid density sensor, the second lead-acid accumulators of 13-, 14- generators, 15- controllers.
Specific implementation mode
The present invention will be described in detail below in conjunction with the accompanying drawings and by specific embodiment, and following embodiment is to the present invention
Explanation, and the invention is not limited in following implementation.
Embodiment 1
As shown in Figure 1, the present embodiment provides a kind of commercial car dual power supply charge and discharge balancings to manage system, including firing switch
7, power switch 6, generator 14, controller 15, the first lead-acid accumulator 1, the second lead-acid accumulator 13, the first power supply relay
5, second source relay 9, engine controller 8；The first density of electrolyte sensing is provided in above-mentioned first lead-acid accumulator 1
Device 2, the first electrolyte temperature sensor 3, the first electrolyte liquid level sensor 4, acquire current density of electrolyte value respectively
pt1, current electrolyte temperature value t1And current electrolyte level value h1’；It is provided with second in above-mentioned second lead-acid accumulator 13
Density of electrolyte sensor 12, the second electrolyte temperature sensor 11, the second electrolyte liquid level sensor 10, acquisition is current respectively
Density of electrolyte value pt2, current electrolyte temperature value t2And current electrolyte level value h2’。
Above-mentioned firing switch 7 is the start gear of the switch of commercial car, i.e., after firing switch 7 is closed, the first lead-acid accumulator
1, the second lead-acid accumulator 13 is the starter power supply inside commercial car, and then completes the starting of the engine in commercial car.
Above-mentioned first lead-acid accumulator 1, the second lead-acid accumulator 13 are when generator 14 is in not generating state as confession
Electrical part is powered for commercial vehicle electrical part, when generator 14 is in generating state, is charged for itself by generator 14.
Above-mentioned generator 14, as power supply device, is the first lead-acid accumulator 1, the second lead-acid accumulator in generating state
13 chargings.
In the present embodiment, the B+ points of generator 14 are the power output end of generator 14, and B+ points connect the first power supply relay
One end of 5 contact of device, one end of 9 contact of second source relay；The other end of first power supply relay, 5 contact connects the first lead
1 anode of acid accumulator；Coil one end of first power supply relay 5 connects 1 cathode of the first lead-acid accumulator, other end connection control
Device 15；The other end of 9 contact of second source relay connects 13 anode of the second lead-acid accumulator；The line of second source relay 9
It encloses one end and connects 13 cathode of the second lead-acid accumulator, other end connection controller 15；The first plumbic acid of cage connection of generator 14
The cathode of the cathode of accumulator 1, the second lead-acid accumulator 13；The W points of generator connect controller 15, by the frequency of generator 14
Signal transmission is to controller 15；The anode of first lead-acid accumulator 1 connects the power input of controller 15 by power switch 6
End, the ground wire of the cathode connection controller 15 of the first lead-acid accumulator 1.
Above controller 15 is car body controller, the model NanoBCU of car body controller in the present embodiment.Above-mentioned starting
Switch 7, the first density of electrolyte sensor 2, the first electrolyte temperature sensor 3, the first electrolyte liquid level sensor 4, second
Density of electrolyte sensor 12, the second electrolyte temperature sensor 11, the second electrolyte liquid level sensor 10 are all connected with the control
Device 15 processed；I.e. firing switch 7 transmits start signal to controller 15, the first density of electrolyte sensor 2, the first electrolyte temperature
Sensor 3, the first electrolyte liquid level sensor 4, the second density of electrolyte sensor 12, the second electrolyte temperature sensor 11,
Second electrolyte liquid level sensor 10 is respectively by the pt of acquisition1、t1、h1’、pt2、t2、h2' be transmitted in controller 15；Above-mentioned hair
Motivation controller 8 connects controller 15, and engine rotational speed signal is transmitted to controller 15.
Embodiment 2
System is managed based on the commercial car dual power supply charge and discharge balancing proposed in embodiment 1, the present embodiment proposes a kind of quotient
With vehicle dual power supply charge and discharge balancing management method, include the following steps：
(1) power switch 6 is opened, specified otherwise is needed, when disconnecting power switch 6, controller 15 powers off, and first
Power supply relay 5 disconnects, second source relay 9 disconnects.
(2) judge 14 operating status of generator：
When generator 14 is in not generating state, what controller 15 judged firing switch 7 is opened or closed state：When rise
When dynamic switch 7 disconnects, ratio and second of the controller 15 according to the first lead-acid accumulator 1 current electrolyte volume and rated capacity
The ratio of lead-acid accumulator 13 current electrolyte volume and rated capacity, the first power supply relay 5 of control, second source relay
9 actuation or disconnection；When firing switch 7 is closed, controller 15 controls the first power supply relay 5 and is attracted and controls second source
Relay 9 is attracted；
When generator 14 is in generating state, controller 15 according to 1 current electrolyte volume of the first lead-acid accumulator with
The ratio of the ratio of rated capacity and the second lead-acid accumulator 13 current electrolyte volume and rated capacity, control the first power supply after
The actuation or disconnection of electric appliance 5, second source relay 9.
Specifically, when generator 14 is in not generating state and firing switch 7 disconnects, controller 15 is according to the first plumbic acid
The ratio and 13 current electrolyte volume of the second lead-acid accumulator of 1 current electrolyte volume of accumulator and rated capacity and specified appearance
The first power supply relay of Ratio control 5 of amount, the actuation of second source relay 9 or the method for disconnection are specific as follows：
The s second judgement time for setting controller 15, the value of s is 20 under usual situation；
If the current electrolyte volume of the first lead-acid accumulator 1 and the ratio of rated capacity are more than or equal to M1When, controller
15 the first power supply relays 5 of control are attracted, and second source relay 9 disconnects, M1For the first lead-acid accumulator 1 must be given to charge
Secure threshold；
If 1 current electrolyte volume of the first lead-acid accumulator and continuous s seconds of the ratio of rated capacity are less than or equal to M1And the
The current electrolyte volume of two lead-acid accumulators 13 and the ratio of rated capacity are more than M2When, controller 15 control the first power supply after
Electric appliance 5 disconnects, and second source relay 9 is attracted, M2For the secure threshold that the second lead-acid accumulator 13 must be given to charge；
If the current capacities of the first lead-acid accumulator 1 and continuous s seconds of the ratio of rated capacity are less than or equal to M1And second lead
The current electrolyte volume of acid accumulator 13 and continuous s seconds of the ratio of rated capacity are less than or equal to M2When, the control of controller 15 the
One power supply relay 5 is attracted, and second source relay 9 is attracted；
When generator 14 is in generating state, controller 15 according to 1 current electrolyte volume of the first lead-acid accumulator with
The ratio of rated capacity and 13 current electrolyte volume of the second lead-acid accumulator and the first power supply of Ratio control of rated capacity after
The method controller 15 of electric appliance 5, the actuation of second source relay 9 or disconnection control the first power supply relay 5, second source after
The method of actuation or the disconnection of electric appliance 9 is specific as follows：
S ' seconds judgement time for setting controller 15, the value of s ' is 20 under usual situation；
If the current electrolyte volume of the first lead-acid accumulator 1 and the ratio of rated capacity continuous s ' seconds are more than or equal to N1
When, controller 15 controls the first power supply relay 5 and disconnects, N1For the first 1 charging complete of lead-acid accumulator when decision threshold；
If 13 current electrolyte volume of the second lead-acid accumulator and the ratio of rated capacity are less than or equal to L, controller 15
The actuation of the first power supply relay 5 is controlled, second source relay 9 disconnects, and L is judgement threshold when meeting commercial car cold start requirement
Value；
If 1 current electrolyte volume of the first lead-acid accumulator and the ratio of rated capacity are more than N1' and the second lead acid storage battery
The current electrolyte volume in pond 13 and the ratio of rated capacity continuous s ' seconds are less than M2When, controller 15 controls the first power supply relay
Device 5 disconnects, and second source relay 9 is closed, N1' it is cooperation M2The guarantee available threshold of first lead-acid accumulator 1 of setting；
If the current electrolyte volume of the second lead-acid accumulator 13 and the ratio of rated capacity are more than or equal to N2, controller 15
It controls second source relay 9 to disconnect, N2For the second 13 charging complete of lead-acid accumulator when decision threshold.
In the present embodiment, the frequency signal judgement generator 14 that the W points according to generator 14 are transmitted to controller 15 is run
The method of state is specific as follows：
When the W dot frequency signals of generator 14 are more than a, controller 15 judges that generator 14 is in generating state；Work as hair
When the W dot frequency signals of motor 14 are less than b, controller 15 judges that generator 14 is in not generating state.The value of above-mentioned a, b according to
It is set separately according to 14 model of matched generator, the difference of engine model.Its principle is as follows, generator W point frequency acquisitions letter
Number, there are proportionate relationships, controller to obtain working as engine according to the proportionate relationship between the frequency signal and engine speed
Preceding rotating speed, and then according to the operating status of the current rotating speed of engine judgement generator 14.
Embodiment 3
As different from Example 2, the engine for being transmitted to controller 15 in the present embodiment according to engine controller 8 turns
The operating status of fast signal determining generator 14, method are as follows：
When engine speed is more than c, controller 15 judges that generator 14 is in generating state；When engine speed is less than
When d, controller 15 judges that generator 14 is in not generating state；The value of above-mentioned c, d are according to 14 model of matched generator, hair
The difference of motivation model is set separately.
Embodiment 4
Based on embodiment 2 or 3, in the present embodiment, the current electrolyte volume of the first lead-acid accumulator 1 and rated capacity
Ratio is obtained according to following formula calculating：
C1'/C=1+ (pt1+0.0007t1- 25 × 0.0007-P25 °)/0.01 × 6% × h1’·S1/V1；
S in formula1For the floor space of the first lead-acid accumulator 1, V1For the nominal volume of the first lead-acid accumulator 1, P25 ° is
Constant value 1.28, pt1For the current density of electrolyte value of the first density of electrolyte sensor 2 acquisition, t1For the first electrolyte temperature
The current electrolyte temperature that sensor 3 acquires；h1' it is the current point solution liquid liquid level that the first electrolyte liquid level sensor 4 acquires；
The current electrolyte volume of second lead-acid accumulator 13 and the ratio of rated capacity are obtained according to following formula calculating：
C2'/C=1+ (pt2+0.0007t2- 25 × 0.0007-P25 °)/0.01 × 6% × h2’·S2/V2；
S in formula2For the floor space of the second lead-acid accumulator 13, V2For the nominal volume of the second lead-acid accumulator 13, P25 °
For constant value 1.28, pt2For the current density of electrolyte value of the second density of electrolyte sensor 12 acquisition, t2For the second electrolyte
The current electrolyte temperature that temperature sensor 11 acquires；h2' it is the current electrolyte that the second electrolyte liquid level sensor 10 acquires
Liquid level.
Embodiment 5
Based on the commercial car dual power supply charge and discharge balancing management method proposed in embodiment 2 or 3, first applied in practice
1 rated capacity of lead-acid accumulator is 165Ah, and used starting electric power is 8.5KW, starts follow current and is more than 300A (gas
The electric current of moment is started when waiting more severe and is even more than 1100A, and the actually available capacity of the bigger accumulator of discharge current is more
It is small), to ensure that the first lead-acid accumulator 1 can be individually for starter power supply, while ensureing the use longevity of the first lead-acid accumulator 1
Life, in the present embodiment with half an hour discharge rate (when by the electric discharge of half an hour discharge rate, the actually available appearance of the first lead-acid accumulator 1
Amount is only the 38% of rated capacity) as basis, and reserved 1/3 ≈ of safe clearance, that is, 1-38% × 2/3 75% is calculated, i.e., the
When the current electrolyte volume of one lead-acid accumulator 1 and the ratio of rated capacity are less than or equal to 75%, the first lead acid storage battery should be
Pond 1 is charged, therefore, M1It is 75% that the secure threshold value of the first lead-acid accumulator 1 charging, which must be given,.
When the second lead-acid accumulator 13 uses rated capacity for 165Ah, similarly, M2The second lead-acid accumulator must as be given
The secure threshold value of 13 chargings is 75%.
In the present embodiment, the actual capacity of the first lead-acid accumulator 1 is the 97%~100% of rated capacity, and sensor
The error burst of collection value is ± 2%, is (- 3%)+(- 2%)=- 5% according to product maximum fit tolerance, therefore current electrolysis
When liquid capacity and the ratio of rated capacity are more than or equal to 95%, 1 charging complete of the first lead-acid accumulator, therefore N1That is the first plumbic acid stores
The value of decision threshold when 1 charging complete of battery is 95%；Similarly sentencing when i.e. the second 13 charging completes of lead-acid accumulator of N2
It is 95% to determine threshold value.
In the present embodiment, N1' it is cooperation M2The guarantee available threshold of first lead-acid accumulator 1 of setting, when the first plumbic acid stores
When the current electrolyte volume of battery 1 and the ratio of rated capacity are more than 90%, can meet under any weather conditions (including it is subzero
At 40 DEG C), the first lead-acid accumulator 1 is individually for starter and powers and realize engine start.
In the present embodiment, for meet commercial car cold start requirement and to one as defined in the first lead-acid accumulator 1 it is minimum can
With capability value 85%, which is to pass through area's starting test summary value of trembling with fear, therefore L is sentencing when meeting commercial car cold start requirement
Disconnected threshold value is 85%.
Disclosed above is only the preferred embodiment of the present invention, but the present invention is not limited to this, any this field
What technical staff can think does not have a creative variation, and without departing from the principles of the present invention made by several improvement and
Retouching, should all be within the scope of the present invention.
Claims (9)
1. a kind of commercial car dual power supply charge and discharge balancing manages system, which is characterized in that including firing switch, power switch, hair
Motor, controller, the first lead-acid accumulator, the second lead-acid accumulator, the first power supply relay, second source relay；
The first density of electrolyte sensor, the first electrolyte temperature sensor, first are provided in first lead-acid accumulator
Electrolyte liquid level sensor；
The second density of electrolyte sensor, the second electrolyte temperature sensor, second are provided in second lead-acid accumulator
Electrolyte liquid level sensor；
The B+ points of the generator connect one end of the first power supply relay contact, and the other end of the first power supply relay contact connects
Connect the first lead acid battery positive electrode；Coil one end of first power supply relay connects the first acid accumulator negative pole lead, the first power supply
The coil other end of relay connects controller；
The B+ points of the generator are also connected with one end of second source relay contact, the other end of second source relay contact
Connect the second lead acid battery positive electrode；Coil one end of second source relay connects the second acid accumulator negative pole lead, the second electricity
The coil other end of source relay connects controller；
The shell of the generator is separately connected the cathode of the cathode of the first lead-acid accumulator, the second lead-acid accumulator；
The W points of the generator connect controller, by the frequency signal transmission of generator to controller；
The anode of first lead-acid accumulator also connects the power input of controller, the first lead acid storage battery by power switch
The ground wire of the cathode connection controller in pond；
The firing switch connects controller；
The first density of electrolyte sensor, the first electrolyte temperature sensor, the first electrolyte liquid level sensor, the second electricity
Solution liquid density sensor, the second electrolyte temperature sensor, the second electrolyte liquid level sensor are all connected with controller.
2. commercial car dual power supply charge and discharge balancing according to claim 1 manages system, which is characterized in that further include starting
Machine controller, the engine controller connect the controller, the tach signal of engine are transmitted to the controller.
3. commercial car dual power supply charge and discharge balancing according to claim 1 manages system, which is characterized in that the controller
For car body controller.
4. a kind of management method based on claim 1-3 any one of them commercial car dual power supply charge and discharge balancing systems,
It is characterized in that, includes the following steps：
Open power switch；
Judge operation state of generator：
When generator is in not generating state, what controller judged firing switch is opened or closed state：When firing switch is disconnected
When opening, controller is worked as according to the ratio and the second lead-acid accumulator of the current electrolyte volume of the first lead-acid accumulator and rated capacity
The ratio of preceding electrolyte volume and rated capacity controls the actuation or disconnection of the first power supply relay, second source relay；When
When firing switch is closed, controller controls the first power supply relay and is attracted and controls the actuation of second source relay；
When generator is in generating state, controller is according to the current electrolyte volume of the first lead-acid accumulator and rated capacity
The ratio of ratio and the second lead-acid accumulator current electrolyte volume and rated capacity, the first power supply relay of control, the second electricity
The actuation or disconnection of source relay.
5. a kind of commercial car dual power supply charge and discharge balancing management method according to claim 4, which is characterized in that the control
Device processed judges that operation state of generator refers to, the fortune of the frequency signal judgement generator of controller is transmitted to according to generator W points
Row state, specially:
When the frequency signal of the W of generator points is more than a, controller judgement generator is in generating state；When the hair
When the W dot frequency signals of motor are less than b, controller judges that generator is in not generating state；
The value of described a, b are set separately according to matched generator mark, the difference of engine model.
6. a kind of commercial car dual power supply charge and discharge balancing management method according to claim 4, which is characterized in that the control
Device processed judges that operation state of generator refers to, is transmitted to the engine rotational speed signal of controller according to engine controller and then sentences
Determine operation state of generator, specially：
When engine speed is more than c, controller judgement generator is in generating state；When engine speed is less than d, control
Device judges that generator is in not generating state；
The value of described c, d are set separately according to the matched generator mark of commercial car, the difference of engine model.
7. a kind of commercial car dual power supply charge and discharge balancing management method according to claim 4,5 or 6, which is characterized in that
When generator is in not generating state and firing switch disconnects, controller is according to the current electrolyte volume of the first lead-acid accumulator
With the ratio of the ratio and the second lead-acid accumulator current electrolyte volume and rated capacity of rated capacity, control the first power supply after
The method of electric appliance, the actuation of second source relay or disconnection is specially：
Set the s seconds judgement time of controller；
If the current electrolyte volume of the first lead-acid accumulator and the ratio of rated capacity are more than or equal to M1When, controller control the
One power supply relay is attracted, and second source relay disconnects, the M1For the safety threshold of the first lead acid battery charge must be given
Value；
If the current electrolyte volume of the first lead-acid accumulator and continuous s seconds of the ratio of rated capacity are less than or equal to M1And second plumbic acid
The current electrolyte volume of accumulator and the ratio of rated capacity are more than M2When, controller controls the first power supply relay and disconnects,
Second source relay is attracted, the M2For the secure threshold of the second lead acid battery charge must be given；
If the current capacities of the first lead-acid accumulator and continuous s seconds of the ratio of rated capacity are less than or equal to M1And second lead acid storage battery
The current electrolyte volume in pond and continuous s seconds of the ratio of rated capacity are less than or equal to M2When, controller controls the first power supply relay
Device is attracted, and second source relay is attracted.
8. a kind of commercial car dual power supply charge and discharge balancing management method according to claim 7, which is characterized in that work as power generation
When machine is in generating state, ratio and second of the controller according to the first lead-acid accumulator current electrolyte volume and rated capacity
The ratio of lead-acid accumulator current electrolyte volume and rated capacity, the first power supply relay of control, second source relay
It is attracted or the method for disconnection is specially：
Set s ' seconds judgement time of controller；
If the current electrolyte volume of the first lead-acid accumulator and the ratio of rated capacity continuous s ' seconds are more than or equal to N1When, control
Device controls the first power supply relay and disconnects, the N1Decision threshold when being completed for the first lead acid battery charge；
If the current electrolyte volume of the second lead-acid accumulator and the ratio of rated capacity are less than or equal to L, controller control first
Power supply relay is attracted, and second source relay disconnects, and the L is judgment threshold when meeting commercial car cold start requirement；
If the current electrolyte volume of the first lead-acid accumulator and the ratio of rated capacity are more than N1' and second lead-acid accumulator work as
Preceding electrolyte volume and the ratio of rated capacity continuous s ' seconds are less than M2When, controller controls the first power supply relay and disconnects, the
Two power supply relays are closed, the N1' it is cooperation M2The guarantee available threshold of first lead-acid accumulator of setting；
If the current electrolyte volume of the second lead-acid accumulator and the ratio of rated capacity are more than or equal to N2, controller control second
Power supply relay disconnects, the N2Decision threshold when being completed for the second lead acid battery charge.
9. a kind of commercial car dual power supply charge and discharge balancing management method according to claim 4, which is characterized in that described
The current electrolyte volume of one lead-acid accumulator and the ratio of rated capacity are obtained according to following formula calculating：
C1'/C=1+ (pt1+0.0007t1- 25 × 0.0007-P25 °)/0.01 × 6% × h1’·S1/V1；
S in formula1For the floor space of the first lead-acid accumulator, V1For the nominal volume of the first lead-acid accumulator, P25 ° is constant value
1.28 pt1For the current density of electrolyte value of the first density of electrolyte sensor acquisition, t1For the first electrolyte temperature sensor
The current electrolyte temperature of acquisition；h1' it is the current point solution liquid liquid level that the first electrolyte liquid level sensor acquires；
The current electrolyte volume of second lead-acid accumulator and the ratio of rated capacity are obtained according to following formula calculating：
C2'/C=1+ (pt2+0.0007t2- 25 × 0.0007-P25 °)/0.01 × 6% × h2’·S2/V2；
S in formula2For the floor space of the second lead-acid accumulator, V2For the nominal volume of the second lead-acid accumulator, P25 ° is constant value
1.28 pt2For the current density of electrolyte value of the second density of electrolyte sensor acquisition, t2For the second electrolyte temperature sensor
The current electrolyte temperature of acquisition；h2' it is the current electrolyte liquid level that the second electrolyte liquid level sensor acquires.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109959871A (en) * | 2019-03-28 | 2019-07-02 | 江苏中岚智能科技有限公司 | A kind of detection device and detection method of Lead-acid Storage Battery acid solution liquid level |
| CN111546938A (en) * | 2020-05-14 | 2020-08-18 | 中国重汽集团济南动力有限公司 | Vehicle hybrid storage battery management system and method |
| CN114117728A (en) * | 2021-10-15 | 2022-03-01 | 东风汽车股份有限公司 | Method for selecting type of rated capacity of valve-regulated lead-acid storage battery of commercial vehicle |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008259372A (en) * | 2007-04-06 | 2008-10-23 | Yamaha Motor Electronics Co Ltd | Power generation controller and saddle type vehicle |
| CN201829973U (en) * | 2010-09-27 | 2011-05-11 | 太原轨道交通装备有限责任公司 | Double-pack storage battery starting circuit of engine |
| CN102278250A (en) * | 2011-06-01 | 2011-12-14 | 中国第一汽车集团公司 | Double-accumulator battery managing system |
| CN104999920A (en) * | 2014-04-16 | 2015-10-28 | 上海通用汽车有限公司 | Double battery management system of engine automatic start and stop vehicle |
| CN105161781A (en) * | 2015-07-22 | 2015-12-16 | 中国重汽集团济南动力有限公司 | Control method for charge and discharge management of lead-acid storage battery |
| CN105191057A (en) * | 2013-05-08 | 2015-12-23 | 株式会社Lg化学 | Charging system for vehicle and vehicle including same |
-
2018
- 2018-05-15 CN CN201810462246.9A patent/CN108521158A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008259372A (en) * | 2007-04-06 | 2008-10-23 | Yamaha Motor Electronics Co Ltd | Power generation controller and saddle type vehicle |
| CN201829973U (en) * | 2010-09-27 | 2011-05-11 | 太原轨道交通装备有限责任公司 | Double-pack storage battery starting circuit of engine |
| CN102278250A (en) * | 2011-06-01 | 2011-12-14 | 中国第一汽车集团公司 | Double-accumulator battery managing system |
| CN105191057A (en) * | 2013-05-08 | 2015-12-23 | 株式会社Lg化学 | Charging system for vehicle and vehicle including same |
| CN104999920A (en) * | 2014-04-16 | 2015-10-28 | 上海通用汽车有限公司 | Double battery management system of engine automatic start and stop vehicle |
| CN105161781A (en) * | 2015-07-22 | 2015-12-16 | 中国重汽集团济南动力有限公司 | Control method for charge and discharge management of lead-acid storage battery |
Non-Patent Citations (2)
| Title |
|---|
| 吴荣辉: "《电喷发动机控制系统》", 31 January 2002 * |
| 汤蕴璆: "《电机学》", 31 January 2013 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109959871A (en) * | 2019-03-28 | 2019-07-02 | 江苏中岚智能科技有限公司 | A kind of detection device and detection method of Lead-acid Storage Battery acid solution liquid level |
| CN111546938A (en) * | 2020-05-14 | 2020-08-18 | 中国重汽集团济南动力有限公司 | Vehicle hybrid storage battery management system and method |
| CN111546938B (en) * | 2020-05-14 | 2023-03-14 | 中国重汽集团济南动力有限公司 | Vehicle hybrid storage battery management system and method |
| CN114117728A (en) * | 2021-10-15 | 2022-03-01 | 东风汽车股份有限公司 | Method for selecting type of rated capacity of valve-regulated lead-acid storage battery of commercial vehicle |
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Application publication date: 20180911 |