CN103837832A - Electric vehicle residual electricity gauge formed by transforming fuel-powered vehicle fuel gauge - Google Patents
Electric vehicle residual electricity gauge formed by transforming fuel-powered vehicle fuel gauge Download PDFInfo
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- CN103837832A CN103837832A CN201210508566.6A CN201210508566A CN103837832A CN 103837832 A CN103837832 A CN 103837832A CN 201210508566 A CN201210508566 A CN 201210508566A CN 103837832 A CN103837832 A CN 103837832A
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- circuit
- fuel
- gauge
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- residual electricity
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- 239000000446 fuel Substances 0.000 title claims abstract description 33
- 230000005611 electricity Effects 0.000 title claims abstract description 29
- 230000001131 transforming effect Effects 0.000 title abstract 3
- 238000005070 sampling Methods 0.000 claims abstract description 14
- 230000008878 coupling Effects 0.000 claims abstract description 10
- 238000010168 coupling process Methods 0.000 claims abstract description 10
- 238000005859 coupling reaction Methods 0.000 claims abstract description 10
- 230000010354 integration Effects 0.000 claims description 18
- 230000008859 change Effects 0.000 claims description 9
- 238000002955 isolation Methods 0.000 claims description 7
- 230000003287 optical effect Effects 0.000 claims description 6
- 238000001514 detection method Methods 0.000 abstract 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 6
- 230000004907 flux Effects 0.000 description 5
- 239000002828 fuel tank Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 235000015927 pasta Nutrition 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
An electric vehicle residual electricity gauge formed by transforming a fuel-powered vehicle fuel gauge comprises a power circuit, an electric quantity integral circuit, a power/resistance switching circuit, an electronic rheostat and a residual electricity gauge body. The electric quantity integral circuit comprises a voltage sampling circuit and a current sampling circuit. One end of a high-voltage power battery pack more than DC60V in the power circuit is connected with a shunt and a control switch in series, the other end of the high-voltage power battery pack more than DC60V is connected with the control switch through a drive motor and a motor controller, voltage signals are formed by voltmeters arranged at the two ends of the drive motor and the two ends of the motor controller, and the voltage signals are input in the voltage sampling circuit of the electric quantity integral circuit through a lead wire. The shunt is coupled with a detection circuit on the high-voltage power battery pack more than DC60V in an alternating current coupling mode. The electric vehicle residual electricity gauge formed by transforming the fuel-powered vehicle fuel gauge aims to replace a residual electricity gauge device on a pure electric vehicle with the fuel-powered vehicle fuel gauge oriented to the difficulty of the compatibility of replacing the residual electricity gauge device on the pure electric vehicle with the fuel-powered vehicle fuel gauge, and the difficulty of remounting and rearranging of a gauge is avoided.
Description
Technical field
The present invention relates to the electric automobile dump energy meter apparatus that utilizes fuel-engined vehicle fuel level gauge to change system into, belong to electric automobile measuring instrument field.
Technical background
Nowadays tradition fuel-engined vehicle develops into, and the various instrument that arrange in its moulding, bridge instrumentation platform, various instrument and manufacturing technology, particularly bridge instrumentation platform and instrument desk are quite ripe and perfect, by the general recognition and acceptance of people; In the time of design pure electric automobile, there is the value of utilization and reference, such as fuel-engined vehicle charging indicator light, water-thermometer, fuel gage etc.
The upper fuel gage arranging on tradition fuel-engined vehicle bridge instrumentation platform and instrument desk, demonstration be the oil mass of fuel-engined vehicle, for fuel-engined vehicle, be absolutely necessary; But pure electric automobile is owing to there is no fuel system, so repack into after electric automobile with fuel vehicle, this table is non-existent in the design of pure electric automobile, and what answer in contrast is pure electric automobile residual electricity scale.The dump energy of power battery of pure electric automobile group, it is again a physical quantity that needs close attention in driving procedure, also must intuitively show by an instrument, so that driver judges that according to dump energy KWh (degree) running time and mileage determine to drive arrangement.Above-mentioned two kinds of instrument are owing to showing that physical quantity is completely different, and therefore, the structure of two kinds of instrument is also completely different.
In prior art, many pure electric automobiles manufacturer separately adds an electric automobile dump energy ammeter again and completes Fumction display on Auto Instrument desk; Because the very meticulous very compact instrument desk of structural arrangement is difficult to settle rightly a residual electricity scale again, or add that holding position is improper or newly-increased face shaping, color and automobile cab instrument desk style are inharmonious, destroyed the attractive in appearance and luxury of former car instrument desk.Therefore, newly-increased residual electricity scale is all placed very forcedly.Consider that position that fuel level gauge arranges on fuel-engined vehicle bridge instrumentation platform and the coordinating and unifying of moulding and bridge instrumentation platform are not easy to be replaced by the instrument of other style, selection utilizes the residual electricity scale on fuel-engined vehicle fuel level gauge instead of pure electric automobile, will be a completely reasonably mentality of designing.Certainly, how to utilize the residual electricity scale on the fuel level gauge instead of pure electric automobile of fuel-engined vehicle, be only the key point of this technological invention.
Content of the present invention
The object of the invention is the compatibility difficulty for the fuel level gauge instead of pure electric automobile residual electricity scale of fuel-engined vehicle, and a kind of dump energy meter apparatus utilizing on fuel-engined vehicle fuel level gauge instead of pure electric automobile providing.Both take full advantage of former carfare source, removed again the difficulty of reinstalling layout and newly add instrument from.
Determine that according to the feature of the fuel level gauge of fuel-engined vehicle and pure electric automobile residual electricity scale mentality of designing is: in conjunction with the fuel level gauge displaying principle of fuel-engined vehicle, to incoherent two kinds of physical quantitys originally by a set of change-over circuit: electric flux KWh (degree) and liquid capacity L (liter) are become to correlative, make the oil mass " 0,1/2,1 " of the fuel level gauge demonstration of former fuel-engined vehicle, convert the corresponding ratio of dump energy in power battery of pure electric automobile group to.Be specially:
1, any a preparation is made into the fuel vehicle of electric automobile, carry out before above-mentioned transformation, need accurately measure the corresponding relation between the interior Fuel Oil Remaining of fuel tank and fuel tank swept resistance value.
2, set electric automobile power battery group and hold electric total amount and ratio (%) relation of exporting electric quantity accumulation value.
3, the corresponding relation of design electric battery output power/resistance variations, the resistance value that Accurate Determining is corresponding.
4, on electric automobile, after debugging, be made into fixing circuit board.
Fuel-engined vehicle fuel level gauge principle is: be contained in oil level float in fuel tank and the fuel-quantity transducer with its interlock, in the time that fuel level in tank raises (adding after oiling), present less resistive, making to flow through the positive electric current of the positive torque coil of fuel gauge increases, make indicator skew to the right under positive torque, indication oil mass increases.Otherwise pointer is offset left, indication oil mass reduces.
High-tension battery group residual electricity scale principle is: under driving motor for electric automobile duty, the value W of the accumulator voltage V in the moment working current I being taken out by shunt and corresponding moment sends into electric quantity integration circuit (W=I × V), becomes the voltage signal of controlling optically-coupled buffer circuit primary light flux by integrating circuit; Optically-coupled buffer circuit converts primary light variations of flux to again the variable signal of (output terminal) control evatron resistance value.Along with the resistance of increase gradually (dump energy in battery pack the reduces gradually) evatron of electric quantity integration circuit integrated value constantly increases, the electric current that flows through positive torque coil constantly reduces, voltameter pointer is skew left under constant negative torque, represent that the dump energy in high-tension battery group reduces gradually, vice versa.
Determine that according to above-mentioned mentality of designing technical scheme of the present invention is: the described electric automobile residual electricity scale that utilizes fuel-engined vehicle fuel level gauge to change system into, contains power system signal deteching circuit, electric quantity integration circuit, power/resistance change-over circuit, evatron, residual electricity scale; It is characterized in that, electric quantity integration circuit comprises voltage sampling circuit and current sampling circuit; One end of the above high voltage power electric battery of DC60V in motor circuit is connected in series with shunt, gauge tap, the other end is connected with gauge tap by drive motor, electric machine controller, the voltage table that install at drive motor and electric machine controller two ends forms voltage signal, and inputs the voltage sampling circuit of electric quantity integration circuit by wire; Shunt couples with the testing circuit in AC coupling mode and the above high voltage power electric battery of DC60V, forms current signal, and inputs the current sampling circuit of electric quantity integration circuit by wire; Electric quantity integration circuit also connect power/resistance change-over circuit, evatron, power/resistance change-over circuit comprises optical coupling isolation circuit and amplifier; And by high-tension circuit and the DC12V low-voltage circuit of the above high voltage power electric battery of optical coupling isolation circuit isolation DC60V; Residual electricity scale comprises DC12V low-voltage circuit, voltameter pointer, positive torque coil, negative torque coil, and the negative pole of DC12V low-voltage circuit connects vehicle body.
Object of the present invention, feature and advantage will be elaborated by reference to the accompanying drawings by embodiment.
Accompanying drawing explanation
Shown in accompanying drawing, be the circuit theory diagrams that utilize the electric automobile residual electricity scale that fuel-engined vehicle fuel level gauge changes system into of the present invention.
Embodiment
Embodiment
As shown in drawings, the described electric automobile residual electricity scale that utilizes fuel-engined vehicle fuel level gauge to change system into, contains motor circuit 100, electric quantity integration circuit 3, power/resistance change-over circuit 4, evatron 5, residual electricity scale 10;
It is characterized in that, electric quantity integration circuit 3 comprises voltage sampling circuit 102 and current sampling circuit 101; One end of the above high voltage power electric battery 7 of DC60V in motor circuit 100 is connected in series with shunt 105, gauge tap 6, the other end is connected with gauge tap 6 by drive motor 1, electric machine controller 8, and the voltage table 2 that install at drive motor 1 and electric machine controller 8 two ends is crossed the voltage sampling circuit 102 of wire connection electric quantity integration circuit 3;
Shunt 105 couples with the testing circuit 106 in AC coupling mode and the above high voltage power electric battery 7 of DC60V, forms current signal i, and inputs the current sampling circuit 101 of electric quantity integration circuit 3 by wire;
Electric quantity integration circuit 3 also connect power/resistance change-over circuit 4, evatron 5, power/resistance change-over circuit 4 comprises optical coupling isolation circuit 104 and amplifier 103; And isolated high-tension circuit and the DC12V low-voltage circuit of the above high voltage power electric battery of DC60V by optical coupling isolation circuit 104;
The above high voltage power electric battery 7 of DC60V comprises DC60V, DC96V, DC144V, DC 240V, DC360V electric pressure.
The above-mentioned fuel vehicle fuel level gauge that utilizes converts high-tension battery group residual electricity scale to, under driving motor for electric automobile 1 duty, the value w of the accumulator voltage u in the moment working current i being taken out by shunt 105 and corresponding moment, (w=i × u) send into electric quantity integration circuit 3, becomes the voltage signal of controlling optically-coupled buffer circuit 4 primary light flux by integrating circuit 3; Optical coupling isolation circuit 4 converts primary light variations of flux to again the variable signal of (output terminal) control evatron resistance value.Along with the resistance of increase gradually (dump energy in the above high voltage power electric battery 7 of DC60V the reduces gradually) evatron 5 of electric quantity integration circuit 3 integrated values constantly increases, the electric current that flows through positive torque coil L+ constantly reduces, voltameter pointer 9 skew (in figure shown in arrow) left under constant negative torque coil L-effect represents that the dump energy in the above high voltage power electric battery 7 of DC60V reduces gradually, and vice versa.
The indication principle of fuel gage is by pasta position transducer in fuel tank, makes pasta change in location, causes resistance change, finally makes to flow through instrument line chart curent change and drives gauge pointer to point to diverse location.As long as electric automobile power battery group output electric weight accumulated value and electricity capacity total value ratio change, by change-over circuit plate, become the variation of instrument torque coil electric current same as described above, fuel gauge pointer just can be varied to voltameter pointer 9 and indicate electric weight ratio, make the oil quantity scale of the fuel level gauge demonstration of former fuel-engined vehicle, be varied to the scale 0,1/2,1 of residual electricity scale 10.
Beneficial effect of the present invention:
1, make full use of former carfare source, avoid newly purchasing instrument disposition a difficult problem is installed.
2, keep the luxurious aesthetic property in former car instrument desk profit.
3, any a fuel vehicle is repacked into electric automobile and be all suitable for, there is universal very greatly versatility.
Claims (2)
1. an electric automobile residual electricity scale that utilizes fuel-engined vehicle fuel level gauge to change system into, contains motor circuit (100), electric quantity integration circuit (3), power/resistance change-over circuit (4), evatron (5), residual electricity scale (10);
It is characterized in that, electric quantity integration circuit (3) comprises voltage sampling circuit (102) and current sampling circuit (101); One end of the above high voltage power electric battery of DC60V (7) in motor circuit (100) is connected in series with shunt (105), gauge tap (6), the other end is connected with gauge tap (6) by drive motor (1), electric machine controller (8), and the voltage table (2) that install at drive motor (1) and electric machine controller (8) two ends is crossed the voltage sampling circuit (102) of wire connection electric quantity integration circuit (3);
Shunt (105) couples with the testing circuit (106) in AC coupling mode and the above high voltage power electric battery of DC60V (7);
Electric quantity integration circuit (3) also connect power/resistance change-over circuit (4), evatron (5), power/resistance change-over circuit (4) comprises optical coupling isolation circuit (104) and amplifier (103);
Residual electricity scale (10) comprises low-voltage circuit (DC12V), voltameter pointer (9), positive torque coil (L+), negative torque coil (L-), the negative pole of low-voltage circuit (DC12V) connects vehicle body (300).
2. according to electric automobile residual electricity scale claimed in claim 1, it is characterized in that: the above high voltage power electric battery of DC60V (7) comprises DC60V, DC96V, DC144V, DC 240V, DC360V electric pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210508566.6A CN103837832A (en) | 2012-11-21 | 2012-11-21 | Electric vehicle residual electricity gauge formed by transforming fuel-powered vehicle fuel gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210508566.6A CN103837832A (en) | 2012-11-21 | 2012-11-21 | Electric vehicle residual electricity gauge formed by transforming fuel-powered vehicle fuel gauge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103837832A true CN103837832A (en) | 2014-06-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210508566.6A Pending CN103837832A (en) | 2012-11-21 | 2012-11-21 | Electric vehicle residual electricity gauge formed by transforming fuel-powered vehicle fuel gauge |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105644300A (en) * | 2014-11-13 | 2016-06-08 | 赵元雷 | Type selecting and arranging method for fan heater switch of blade electric vehicle |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03178530A (en) * | 1989-10-25 | 1991-08-02 | Philips Gloeilampenfab:Nv | Charging state decision device of cell |
| US5600215A (en) * | 1994-07-07 | 1997-02-04 | Hitachi, Ltd. | Controller for electric vehicle |
| US5646534A (en) * | 1995-01-06 | 1997-07-08 | Chrysler Corporation | Battery monitor for electric vehicles |
| CN101256218A (en) * | 2008-04-08 | 2008-09-03 | 吉林大学 | Measuring system for state of charge of automobile power battery |
| CN101282381A (en) * | 2007-04-03 | 2008-10-08 | 乐金电子(中国)研究开发中心有限公司 | Apparatus and method for displaying battery dump energy |
-
2012
- 2012-11-21 CN CN201210508566.6A patent/CN103837832A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03178530A (en) * | 1989-10-25 | 1991-08-02 | Philips Gloeilampenfab:Nv | Charging state decision device of cell |
| US5600215A (en) * | 1994-07-07 | 1997-02-04 | Hitachi, Ltd. | Controller for electric vehicle |
| US5646534A (en) * | 1995-01-06 | 1997-07-08 | Chrysler Corporation | Battery monitor for electric vehicles |
| CN101282381A (en) * | 2007-04-03 | 2008-10-08 | 乐金电子(中国)研究开发中心有限公司 | Apparatus and method for displaying battery dump energy |
| CN101256218A (en) * | 2008-04-08 | 2008-09-03 | 吉林大学 | Measuring system for state of charge of automobile power battery |
Non-Patent Citations (2)
| Title |
|---|
| 赵裕国: "汽车油箱内油量的测量", 《考试周刊》 * |
| 齐国光 等: "电动汽车电量计量技术的研究", 《清华大学学报（自然科学版）》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105644300A (en) * | 2014-11-13 | 2016-06-08 | 赵元雷 | Type selecting and arranging method for fan heater switch of blade electric vehicle |
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Application publication date: 20140604 |