CN1147460A - Selective charge - Google Patents
Selective charge Download PDFInfo
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- CN1147460A CN1147460A CN95115697A CN95115697A CN1147460A CN 1147460 A CN1147460 A CN 1147460A CN 95115697 A CN95115697 A CN 95115697A CN 95115697 A CN95115697 A CN 95115697A CN 1147460 A CN1147460 A CN 1147460A
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- utmost points
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- 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
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
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Abstract
The present invention has two accumulators, a start one and a supplementary one, and a switch connected to AC generator, and the switch turns off supplementary devices before the accumulators are used up. During charging the supplementary accumulator by the AC generator, the charge state is tested, the switch is turned off to prevent overcharge while charging the start accumulator. According to the charge state, the supplementary accumulator is selected via switch instruction to charge with pulse, floating or full charge voltage. The switch is microprocessor controlled. The triaxial curve relates the discharge current and voltage to charge state.
Description
The present invention relates to switch that 2 utmost points, 3 utmost points and 4 utmost point storage batterys and automobile lead external insulation casing pipe are adapted.This class storage battery is used for the illumination of automobile, ignition system and other load are started and power supply.Each storage battery that this switch also can be connected in series in order to isolation (for example, truck use storage battery) and the storage battery that is connected in parallel to or battery pack.These forms all are included in " 2 utmost points, 3 utmost points and 4 utmost points " this term of storage battery.
The inventor has introduced a kind of switch in order to automatic guidance 3 utmost point charging and discharging of accumulator processes in its new zealand patent application to be examined 244007 247509.This system requirements lead external insulation casing pipe can adapt to employed storage battery, because general insulating tube is to be 2 utmost point storage battery design-calculateds.
This technology has proposed protection mono-2 utmost point storage batterys makes it unlikelyly carry out deletrious discharge, and sufficient electric energy is malfunctioning at for example alternating current generator, block relay cuts off the occasion in some accessory equipment source with automobile start so that keep.
In another suggestion, respectively organize auxiliary member by the micro-processor control device cut-out, but must be with manually the auxiliary member of these groups being received on mono-2 utmost point storage batterys.
In Japanese patent application 3-49541A, automotive battery satisfies every requirement of automobile, by the facsimile apparatus (Fax) in the fax battery traction automobile.During ignition system work, automotive battery is given the fax battery charge.Automotive battery is protected by a controller, thereby guarantees that automobile can start.
Under the excision of accessory equipment power supply and respective electrode and being connected of alternating current generator being control, carry out at microprocessor the time, the charge condition of storage battery is just very important, because whether process of charging or automobile take place during the definite automotive use of this value just whether the time spent discharge process does not take place.
Charge condition can be assessed by different modes.Measure the proportion of battery liquid with densimeter, this is only useful in definite storage battery ability of whether charging when maybe needing to charge.Gravity test can not be measured remaining quantity of electric charge, and this key value of on-off system just.
The carbon pile tester is made up of through calibrating the thin wire that can bear rated current between each terminal of storage battery some.Difference of potential between each utmost point is indicated by potentiometer.Whether the carbon pile tester can indicate storage battery can be with automobile start.Manufacturing firm utilizes this tester to determine whether storage battery is cranky exactly.
If storage battery is not connected with load after charging always, then potentiometer is 12.60 volts to the indicated value of complete electrically-charged 12 overhead accumulators, and 11.80 volts voltage indicated value shows that storage battery almost completely discharges.
The warning light that shows the battery charge fault is arranged on the instrument carrier panel of many automobiles, but this does not show the charge condition of storage battery.
The US Patent 4902956 of SLOAN has been introduced a kind of monitoring device that monitors 2 utmost point SLI storage batterys, and this monitoring device is from inferring the charge condition of storage battery to the testing result of battery tension and temperature.When detected value was lower than predetermined value, an intrafascicular load of monitoring device excision automobile electric wire attempted to keep the starting that sufficient charge volume is guaranteed automobile.
Although its terminal voltage can be indicated the state of electric charge reliably when storage battery connect 30 peace loads (being 12.65 volts in the case), but little load (rear portion baggage compartment lighting) to 100 milliamperes can make battery discharging to making its degree that automobile start is got up also, and the voltage readings of measuring may be 11.80 volts.Under the electric charge situation identical with loading condition, less storage battery and bigger storage battery, the voltage readings that they provide may be different.SLOAN wants to address this problem by the rate of change of measuring automotive battery voltage.The plumbic acid storage battery of constant load is given in power supply, and its discharge curve was slow horizontal line inclination before storage battery drops to 60～70%, and after this, ramp rate increases.Monitoring device utilizes this characteristic curve to carry out work, and is irrelevant with the classification of load current or storage battery.
Accumulator positive is when charging, and said method is just useless.Most automobiles all have an alternating current generator of being regulated by voltage output, and the maximum current output of electrical generator is generally between 45～100 peaces.Automobile one starting, battery tension rises to the output voltage of alternating current generator soon.This voltage is generally 13.8～14.4 volts.If storage battery has only lower quantity of electric charge, then the electric current of its acceptance can surpass 50 peaces.Storage battery is if be full of electricity, and then the magnitude of current that can receive is just less than 1 peace.The monitoring device magnitude of voltage that senses in the stage that recharges here remains unchanged.
Storage battery is if charging is excessive, unnecessarily dehydration, if charge volume deficiency repeatedly, then cell panel is impaired, may be full of electricity never again.Recharging of storage battery, efficient are not 100%, and charging current is not directly proportional with the increase of battery state of charge.The inevitable efficient with battery recharge of charging current reduces.
Stationary load and live load are increasing, and the important point is regardless of the size and the type of load, all will know electrically-charged state, as the reliable basis that monitors.
In the motion of prior art, neither one was mentioned such system; Automobile in the system has two or more 2 utmost points or 3 utmost points to be charged according to qualifications and carried out the different storage batterys of discharge according to qualifications by alternating current generator, so that utilize the comprehensive assessment result that battery state of charge is carried out to guarantee the effect of CRA (starting) storage battery and AUX (assisting) storage battery.
The present invention relates to a kind of 2 utmost points, 3 utmost points or 4 utmost point accumulator switchs that automobile is used, automobile has Starting motor, battery charge electrical generator and storage battery, described storage battery has CRA storage battery and AUX storage battery, and wherein normal open switch R1 connects CRA storage battery and AUX storage battery; The detecting element of switch R1 detects the charge condition of AUX storage battery at least in process of charging, so that: (a) prevent to charge excessive and (b) the AUX storage battery can be discharged according to qualifications, still keep the CAR storage battery simultaneously and be enough to charge condition that automobile start is got up.Described switch is preferably in the AUX battery state of charge to be kept when weakening making starting and subsidiary battery send out the spy effect, and the AUX storage battery is discharged according to qualifications, keeps the CRA storage battery to be enough to the charge condition that automobile start is got up simultaneously.
Best described switch all detects the charge condition of AUX storage battery in charging and discharge process.
Described switch can become the part of above-mentioned automotive electrical system, and for connect usefulness between each utmost point of storage battery, described switch comprises:
(a) normal open switch R1 connects CRA storage battery and AUX storage battery;
(b) normally closed switch R2 is connected to electrical auxiliary service with the AUX storage battery;
(c) detecting device, charge condition and any electric current of detection AUX storage battery from the AUX storage battery to the CRA storage battery, and wherein (i) R1 connects and disconnection CRA storage battery and AUX storage battery; (ii) R2 is connected to electrical auxiliary service with the AUX storage battery, and disconnects from electrical auxiliary service, thereby makes the system can be to CRA storage battery and AUX battery charge, to satisfy the requirement of load fluctuation.
The receivable input of detecting device has:
(a) AUX battery current;
(b) AUX battery tension;
(c) battery temp.
Detecting device can be microprocessor μ P.Measure current device in city's pin switch and can adopt Hall effect or shunt sensor.In original-pack equipment, each load all can be assigned a sensor and be represented " connection " or " disconnection ", also has a look-up table in addition, calculates the electric current that comes out from the AUX storage battery for μ P.
μ P also can receive the AUX current value of certain given load (for example headlight), only as its input.μ P has the data of the total charging capacity of storage battery, thereby when described load had consumed a certain proportion of total electrical charge capacity, switch was opened.
In most preferred embodiment, use selectable electric current, magnitude of voltage are repeatedly assessed charge condition together with electric current X time and temperature value reliability.Microprocessor has a formula or tabulation expression or has listed state-of-charge value.This value can be in order to excising the power supply of each accessory equipment in case of necessity, thereby prevent the excessive and resilient not of battery discharging.Secondly, when the charge condition of this value representation equipment 505, charge a battery more appropriate at 15.5 volts.This makes the battery pole plates charging that becomes sulfate, and keeps its sulfate state under lower charging valtage.Like this, microprocessor can order the regulating control strobe pulse formula charging modes of alternating current generator to supply with the floating charge of 15.5 volts or 13.5 volts.During charge condition satisfactory (promptly reaching 75～85%), the charging valtage indicated value when being full of electricity is 14.5 volts.These and other relevant value can be published the document of " auto electric/electronic system " of the Robert Busch Co., Ltd of Co., Ltd version in 1988 referring to VDI.
In the practice, when battery charge, detecting device is detected to be constant potential.In discharge process, the speed that voltage descends is directly proportional with electric current.It is logical system management to be got, and need definitely measure rather than measure relatively charge condition.Therefore in another embodiment, can detect electric current with the sensor (not being Hall effect element) of the rate of change of measuring battery tension decline.This rate of change is represented electric current.Temperature is measured with the device of thermally dependent resistor or equivalence.
In the occasion that can install original-pack equipment, automaker may provide microprocessor, for example the engine control microprocessor.Sort processor has charged state data is input to private port on the bus.Cost utilization that so just can be lower had been installed in the marginal capacity of the element in the automobile already.
Fig. 1 is that voltage/current is selected circuit.
Fig. 2 is electric current/time selection circuit.
Fig. 3 is the three axis diagram of curves of AUX electric current of the AUX voltage/appearance of charge condition/appearance.
Fig. 4 is a circuit diagram.
Referring to Fig. 1.μ P receives the run signal of operation from piezoelectric device 4/not, receives the current level of AUX storage batterys 6 by shunt 8, and receives the AUX voltages by lead 10.Calculate before switch R2 should open lamp 12 light yellows at μ P.
In another program, each is measured by μ P by the load of AUX circuit supply.Look-up table has been arranged, and μ P just can calculate current value, and for example illumination needs with 8 peaces.Magnitude of voltage and current value just combine can draw state-of-charge value, and μ P promptly calculates cutoff according to this state-of-charge value.Comparison procedure is constantly carried out, up to proposing matching value, with the power supply excision of load.Automobile in motion, charging current/voltage is measured value.At this moment cutoff can not appear, because running signal is than more preponderating by instruction.
Like this, charge condition determines whether each accessory equipment should still keep connecting.Automobile can for example avoid illumination or ignition system to be switched off at the signal that travels.
Among Fig. 2, shunt 8 provides current value for μ P.This is the measured value that is fed to the total current of each accessory equipment.Total peace/time the capability value (for example 30 ampere-hours) that is full of electricity is input among the μ P.μ P calculates 15 ampere-hour electric currents and when provides by shunt, and opens R1.So just utilized electric current X time signal.Therefore do not calculate charge condition, the variation of only calculating charge condition.Following table 1 shows the sign of each value of using when monitoring the battery-operated situation.Each value is taken out sample one time in μ P his-and-hers watches each second.Therefore the value of AUX electric current and AUX voltage constantly arrives universal serial bus.μ P is with reference to 3 axis curves shown in Figure 3 and read charge condition.
Table 1 is selected from some parameters of SAEJI587 parameter sign allocation sheet
The measured value of voltage is that 11.0 volts, the record value of current sensor discharge current are 15 ampere-hours, and the charge condition of reading from the charge condition key is in and is equivalent to 40～50% achromatic region.Pulse, float or full threshold voltage is chosen on regulating control.
| PLD | Parameter |
| Forms data length character | |
| 114 | The storage battery net current |
| 115 | Alternating current electrical generator net current |
| Double Data length character | |
| 158 | Storage battery current potential (voltage) conversion |
| 167 | Alternating current generator electromotive force (voltage) |
| 168 | Storage battery electromotive force (voltage) |
There is following benefit in this system:
1. voltage, electric current and temperature value triplicity are got up, and can draw charged state than the more accurate integrated value of the method for prior art.
2. the value that draws by this assessment makes microprocessor select the suitable charging voltage value of polymerization by pressure regulator.
Claims (21)
1. a kind of 2 utmost points, 3 utmost points or 4 utmost point accumulator switchs used of automobile, described automobile has a Starting motor, a battery charge electrical generator and a storage battery, this storage battery has a CRA storage battery and an AUX storage battery, it is characterized in that normal open switch R1 is joined to one another CRA and AUX storage battery; Switch R1 has a detecting device detecting the charge condition of AUX storage battery in process of charging at least so that: (a) avoid charging excessive; (b) make the AUX storage battery can imitate electricity according to qualifications, still keep the charge condition of CAR storage battery to be enough to start a car simultaneously.
2. a kind of 2 utmost points that automobile as claimed in claim 1 is used, 3 utmost points or 4 utmost point accumulator switchs is characterized in that, detecting device all detects charge condition in charging and discharge process.
3. a kind of 2 utmost points that automobile as claimed in claim 1 or 2 is used, 3 utmost points or 4 utmost point accumulator switchs is characterized in that, the rate of change that detecting device assessment AUX battery tension descends.
4. a kind of 2 utmost points that automobile as claimed in claim 3 is used, 3 utmost points or 4 utmost point switches is characterized in that, detecting device combines the rate of change of AUX storage battery and the decline of AUX battery tension, the assessment charge condition.
5. 2 utmost points that automobile as claimed in claim 1 or 2 is used, 3 utmost points or 4 utmost point accumulator switchs is characterized in that, detecting device combines AUX battery tension and electric current and structured data, assesses charge condition.
6. a kind of 2 utmost points that automobile as claimed in claim 5 is used, 3 utmost points or 4 utmost point accumulator switchs is characterized in that structured data is fuzzy set, look-up table or mathematical formulae.
7. a kind of 2 utmost points that automobile as claimed in claim 4 is used, 3 utmost points or 4 utmost point accumulator switchs is characterized in that, detecting device can receive the electric current that input comes from the amperometric sensor of each auto parts and components, thereby utilizes the power consumption integrated value.
8. a kind of 2 utmost points of using as claim 4,5 or 7 described automobiles, 3 utmost points or 4 utmost point accumulator switchs is characterized in that, detecting device adopts sensor along separate routes.
9. a kind of 2 utmost points of using as claim 4,5 or 7 described automobiles, 3 utmost points or 4 utmost point accumulator switchs is characterized in that, described detecting device adopts Hall transducer.
10. a kind of 2 utmost points, 3 utmost points or 4 utmost point accumulator switchs of using as the described automobile of above arbitrary claim is characterized in that detecting device application reference table is assessed the outgoing current of AUX storage battery.
11. a kind of 2 utmost points, 3 utmost points or 4 utmost point accumulator switchs as the described automobile of above arbitrary claim is used is characterized in that, detecting device receives the input from the storage battery sensor of measuring battery specific gravity.
12. a kind of 2 utmost points that automobile as claimed in claim 11 is used, 3 utmost points or 4 utmost point accumulator switchs is characterized in that, detecting device receives the incoming signal of the photodetector of opening through buoyancy aid.
13. a kind of 2 utmost points, 3 utmost points or 4 utmost point accumulator switchs as the described automobile of above arbitrary claim is used is characterized in that, detecting device is a microprocessor.
14. a kind of 2 utmost points that automobile as claimed in claim 13 is used, 3 utmost points or 4 utmost point accumulator switchs is characterized in that, microprocessor is the part with input/output end port of engine control computer.
15. a utmost point 2 utmost points, 3 or 4 utmost point accumulator switchs as claim 13 or 14 described automobiles are used is characterized in that, microprocessor is selected the suitable charging valtage of storage battery according to the charge condition of assessing out.
16. a kind of 2 utmost points that automobile as claimed in claim 15 is used, 3 utmost points or 4 utmost point accumulator switchs is characterized in that, are charged as pulsed, the formula of floating or be full of formula charging.
17. a kind of 2 utmost points that automobile as claimed in claim 1 or 2 is used, 3 utmost points or 4 utmost point accumulator switchs is characterized in that the charging current and the discharge current of AUX storage battery are added up.
18. a kind of 2 utmost points that automobile as claimed in claim 17 is used, 3 utmost points or 4 utmost point accumulator switchs is characterized in that charging current value multiply by the coefficient that recharges of storage battery.
19. a kind of 2 utmost points that automobile as claimed in claim 18 is used, 3 utmost points or 4 utmost point accumulator switchs is characterized in that, depend on charge condition and battery temp and decide, and recharge number between 1～100%.
20. this explanation is with reference to Fig. 1 of accompanying drawing and Fig. 2 is described and a kind of 2 utmost points, 3 utmost points or 4 utmost point accumulator switchs used at the automobile of this accompanying drawing illustrated.
21. this specification sheets is described and at a kind of 2 utmost points, 3 utmost points or 4 utmost point accumulator switchs of the automobile of Fig. 4 illustrated with reference to Fig. 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95115697A CN1071498C (en) | 1995-10-10 | 1995-10-10 | Selective charge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95115697A CN1071498C (en) | 1995-10-10 | 1995-10-10 | Selective charge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1147460A true CN1147460A (en) | 1997-04-16 |
| CN1071498C CN1071498C (en) | 2001-09-19 |
Family
ID=5080614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN95115697A Expired - Fee Related CN1071498C (en) | 1995-10-10 | 1995-10-10 | Selective charge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1071498C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1325924C (en) * | 2003-08-18 | 2007-07-11 | 旺宏电子股份有限公司 | Monitoring circuit of generator battery charger |
| CN101615704B (en) * | 2008-06-27 | 2011-11-16 | 山东申普交通科技有限公司 | Method for controlling storage battery |
| CN101573628B (en) * | 2007-01-04 | 2012-02-01 | 丰田自动车株式会社 | Accumulator control device and vehicle |
| CN101151778B (en) * | 2005-05-26 | 2013-03-13 | 肖普瓦克公司 | Charge control circuit for a vehicle vacuum cleaner battery |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5162164A (en) * | 1989-06-12 | 1992-11-10 | Globe-Union Inc. | Dual battery system |
| JP2519576B2 (en) * | 1990-06-04 | 1996-07-31 | 日本電池株式会社 | Storage battery with spare battery |
| US5164273A (en) * | 1991-07-19 | 1992-11-17 | Andras Szasz | Pseudo dual circuit battery and circuit for use |
| US5256502A (en) * | 1991-09-17 | 1993-10-26 | Gnb Incorporated | Modular, multicell lead-acid batteries |
-
1995
- 1995-10-10 CN CN95115697A patent/CN1071498C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1325924C (en) * | 2003-08-18 | 2007-07-11 | 旺宏电子股份有限公司 | Monitoring circuit of generator battery charger |
| CN101151778B (en) * | 2005-05-26 | 2013-03-13 | 肖普瓦克公司 | Charge control circuit for a vehicle vacuum cleaner battery |
| CN101573628B (en) * | 2007-01-04 | 2012-02-01 | 丰田自动车株式会社 | Accumulator control device and vehicle |
| CN101615704B (en) * | 2008-06-27 | 2011-11-16 | 山东申普交通科技有限公司 | Method for controlling storage battery |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1071498C (en) | 2001-09-19 |
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