CN103841717A - Pure electric vehicle DC-DC system indicating lamp formed by transforming fuel-powered vehicle charge lamp - Google Patents
Pure electric vehicle DC-DC system indicating lamp formed by transforming fuel-powered vehicle charge lamp Download PDFInfo
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- CN103841717A CN103841717A CN201210508568.5A CN201210508568A CN103841717A CN 103841717 A CN103841717 A CN 103841717A CN 201210508568 A CN201210508568 A CN 201210508568A CN 103841717 A CN103841717 A CN 103841717A
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Abstract
A pure electric vehicle DC-DC system indicating lamp formed by transforming a fuel-powered vehicle charge lamp is characterized in that information generated by monitoring and controlling energy transmission sates of a high-voltage power system more than DC60V of a pure electric vehicle and a DC12V low-voltage system are displayed on the original fuel-powered vehicle charge lamp; whether the systems are in normal working states or not is judged by utilizing the constant voltage function of DC-DC output voltages, namely, whether the high-voltage power system more than DC60V of the pure electric vehicle transmits electric energy to the DC12V low-voltage system or not is judged; by utilizing the working states of the DC12V low-voltage system, namely, according to the electricity storing capacity of a DC12V storage battery, when faults occur and recovery capability is not available, how far the vehicle can continue to run is judged, and a driver is reminded to take corresponding measures accordingly. The pure electric vehicle DC-DC system indicating lamp formed by transforming the fuel-powered vehicle charge lamp is mature in technology, convenient to mount, consistent to the integral design style of a cab instrument table and capable of maintaining the integrity of an original vehicle instrument desk.
Description
Technical field
The present invention relates to the pure electric automobile DC-DC system indicator that utilizes fuel-engined vehicle charging indicator light to change system into, the monitoring and control system and the terminal display that are specifically related to Energy Transfer state between the above high voltage power system of pure electric automobile DC60V and DC12V low-voltage system, belong to electric automobile measuring instrument field.
Technical background
In the full car of tradition fuel-engined vehicle, only have a set of power-supply system---DC12V storage battery, this DC12V storage battery is responsible for providing all consuming parts of car load (comprising motive igniting) required electric energy; When the energy source of this system is fuel engines work, the generator driving by driving belt provides, the reliability of its operating state and automotive engineering synchronized development, and the rate that breaks down is extremely low.Even if one of them parts (generator or storage battery) go wrong, another parts still can keep the required electric energy of Vehicle Driving Cycle; The operating state of generator and storage battery or situation show on fuel-engined vehicle charging indicator light, and described charging indicator light is terminal display.With regard to the position arranging with regard to the performance of fuel-engined vehicle charging indicator light with on bridge instrumentation platform, be also 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.
Pure electric automobile is in the time of design, consider the space availability ratio in engine bin, conventionally utilize parts that are DC-DC, as engine with generator, become low-voltage Energy transfer in DC12V storage battery the high voltage power conversion of dynamical system continuously, other all parts for vehicle except power motor and hot air frost removal, as the electricity consumption of light, illumination, instrument, safety warning system.If these parts break down, the electric energy supplementary source of DC12V battery system will be cut off, and directly affect Vehicle Driving Cycle.So, to the quality of this working state of system, must execute real monitoring incessantly and control.On the same instrument desk that need to be presented at driver's cabin of result of this monitoring and control, to remind driver to take corresponding counter-measure.In prior art, this monitoring is more with the displaying method of terminal of controlling result, still, has often ignored the method for fuel-engined vehicle charging indicator light as terminal display of utilizing.Therefore, exist new clothes indicator light technology not mature enough, install trouble, with the technological deficiency such as the global design style of bridge instrumentation platform is inharmonious.
Summary of the invention
The object of the present invention is to provide a kind of pure electric automobile DC-DC system indicator that utilizes fuel-engined vehicle charging indicator light to change system into, the monitoring of the Energy Transfer state of above pure electric automobile DC60V high voltage power system and DC12V low-voltage system and control indication information, be presented on former fuel-engined vehicle charging indicator light; The charging indicator light of former fuel-engined vehicle is changed to the DC-DC system indicator that becomes pure electric automobile.
Technical scheme of the present invention: described pure electric automobile DC-DC system indicator comprises a high voltage power system and a DC-DC transducer being connected with DC144V high-tension battery group, a DC12V low power used system, a monitor and detection circuit board; It is characterized in that, between DC144V high-tension battery group in described high-tension battery group and DC-DC transducer, be connected with current limliting insurance, control switch, operating voltage table, rated operational current table, drive motors.
The output of DC-DC transducer is connected with the DC12V battery pack of DC12V low power used system, the output of DC12V battery pack also connects the load of car load safety warning system, the load of car load instrument system, the load of car load lighting system, DC12V nominal load current table, and connect with the LM358 integrated circuit comparator on monitor and detection circuit board, one of them is negative input, and another is electrode input end.
LM358 integrated circuit comparator on monitor and detection circuit board is connected reference voltage adjusting resistance, is shown resistance, floating voltage divider resistance Rb1, Rb2, Rb3, voltage-stabiliser tube, LED light-emitting diode; By resistance and voltage-stabiliser tube, reference voltage UB point current potential is adjusted to a little less than DC13V, and sends into reference voltage input; By floating voltage divider resistance Rb1, Rb2, Rb3, monitored comparative voltage UA is sent into detected floating voltage input; As comparative voltage UA and reference voltage UB, while there is size variation, the state of comparator input terminal and LED light-emitting diode overturns.
When electric automobile work, the electric energy of high voltage power system passes through DC-DC transducer incessantly to DC12V low power used system electric energy supplement; DC12V low power used system provides electric energy to the each load of full car incessantly; The operating state of the monitor full time of monitor and detection circuit board and detection high voltage power system and DC12V low power used system is also shown.
The numerical value showing according to the rated operational current table determining, reference voltage UB point current potential is adjusted in the value a little less than DC13V, comparative voltage UA point current potential floats by the cumulative load of former car DC12V using electricity system, in the time of comparative voltage UA > reference voltage UB, LED light-emitting diode extinguishes; In the time of comparative voltage UA < reference voltage UB, LED light-emitting diode is lighted, and this extinguishes---frequency and the DC12V batteries residue of lighting alternation procedure deposit electric weight number relevant; Deposit electric weight fewer, frequency is higher; While becoming normal bright state, represent that the above high voltage power system of DC60V can not be to DC12V batteries electric energy transmitting.
Specified electric power and the maximum electric power of electric automobile DC12V low-pressure system are measured by monitor and detection circuit board, in the time that DC-DC transducer is working properly, more than DC12V batteries terminal voltage should remain on DC13V; After DC-DC converter system lost efficacy, DC12V batteries terminal voltage at short notice, in the time of specified electric power, still remain on DC13V, if this magnitude of voltage a little less than DC13V is inputted to comparison circuit LM358 as reference voltage UB, when this DC12V batteries terminal voltage is during lower than reference voltage UB, the output state of comparison circuit just overturns, if meet a LED light-emitting diode D2, while there is upset, this diode will be lit; And there is two states: one is Chang Liang; One is glittering; According to DC12V low power used system rated power and the maximum power value measured, not only can judge whether DC-DC converter system breaks down, and can judge DC12V batteries residue and deposit electric weight, flashing rate is higher, DC12V storage battery dump energy is fewer, and vice versa; Accordingly, judging DC12V storage battery residue deposits electric weight and this residue and deposits electric weight and can also how far make vehicle safe driving; This LED light-emitting diode still can utilize the charging indicator light of former car to replace.
The terminal display of pure electric automobile DC-DC system indicator of the present invention, i.e. LED light-emitting diode part.The above high voltage power system of pure electric automobile DC60V comprises DC60V, DC96V, DC144V, DC240V, DC360V above.
In sum, the present invention utilizes the pressure-keeping functions of DC-DC output voltage, judges that whether system is in normal operating conditions, and whether the above high voltage power system of pure electric automobile DC60V is to DC12V low-voltage system electric energy transmitting; Utilize DC12V low-voltage system operating state, deposit power according to DC12V storage battery, judgement is broken down when temporarily without recovery capability, and vehicle also can how many mileages of driving, reminds driver to take accordingly corresponding counter-measure.The present invention is the pure electric automobile DC-DC system indicator that utilizes fuel-engined vehicle charging indicator light to change system into, not only technology maturation, easy for installation but also harmonious with the global design style of bridge instrumentation platform, and kept the integrality of former car instrument desk.
Accompanying drawing explanation
Shown in accompanying drawing, be the circuit theory diagrams of pure electric automobile DC-DC system indicator embodiment of the present invention.
Embodiment
Describe the preferred embodiments of the present invention in detail below in conjunction with accompanying drawing.
As shown in the figure, a kind of pure electric automobile DC-DC system indicator that utilizes fuel-engined vehicle charging indicator light to change system into of the present invention, it is characterized in that, the monitoring of the Energy Transfer state of above pure electric automobile DC60V high voltage power system and DC12V low-voltage system and the information of controlling generation, be presented on former fuel-engined vehicle charging indicator light; The charging indicator light of former fuel-engined vehicle is changed to the DC-DC system indicator that becomes pure electric automobile.
Described pure electric automobile DC-DC system indicator comprises a high voltage power system 100 and a DC-DC transducer being connected with DC144V high-tension battery group 105 107, DC12V low power used system 200, a monitor and detection circuit board 300; It is characterized in that, between DC144V high-tension battery group 105 of described high voltage power system 100 and DC-DC transducer 107, be connected with current limliting insurance 101, control switch 102, operating voltage table 103, rated operational current table 104, drive motors 106.
The output of DC-DC transducer 107 is connected with the DC12V battery pack of DC12V low power used system 200, the output of DC12V battery pack also connects car load safety warning system load 110, car load instrument system load 109, car load lighting system load 108, DC12V nominal load current table 111, and connect with the LM358 integrated circuit comparator on monitor and detection circuit board 300, one of them is negative input 4, and another is electrode input end 8.
LM358 integrated circuit comparator on monitor and detection circuit board 300 is connected reference voltage adjusting resistance Rj, is shown resistance R x, floating voltage divider resistance Rb1, Rb2, Rb3, voltage-stabiliser tube 112, LED light-emitting diode D2; By resistance R j and voltage-stabiliser tube 112, reference voltage UB point current potential is adjusted to a little less than DC13V, and sends into reference voltage input 2; By floating voltage divider resistance Rb1, Rb2, Rb3, monitored comparative voltage UA is sent into detected floating voltage input 3; As comparative voltage UA and reference voltage UB, while there is size variation, the state of comparator input terminal 1 and LED light-emitting diode D2 overturns.
When electric automobile work, high voltage power system 100 is passed through DC-DC transducer 107 incessantly to DC12V low power used system 200 electric energy supplement; DC12V low power used system 200 provides electric energy to the each load of full car incessantly; The operating state of 300 monitor full times of monitor and detection circuit board and detection high voltage power system 100 and DC12V low power used system 200 is also shown.
Specified electric power and the maximum electric power of electric automobile DC12V low-pressure system are measured by monitor and detection circuit board 300, in the time that DC-DC transducer 107 is working properly, more than DC12V batteries terminal voltage should remain on DC13V; When after DC-DC transducer 107 thrashings, DC12V batteries terminal voltage at short notice, in the time of specified electric power, still remain on DC13V, if this magnitude of voltage a little less than DC13V is inputted to comparison circuit LM358 as reference voltage UB, when this DC12V batteries terminal voltage is during lower than reference voltage UB, the output state of comparison circuit just overturns, if meet a LED light-emitting diode D2, while there is upset, this diode will be lit; And there is two states: one is Chang Liang; One is glittering; According to DC12V low power used system 200 rated power and the maximum power value measured, not only can judge whether DC-DC transducer 107 systems break down, and can judge DC12V batteries residue and deposit electric weight, flashing rate is higher, DC12V storage battery dump energy is fewer, and vice versa; Accordingly, judging DC12V storage battery residue deposits electric weight and this residue and deposits electric weight and can also how far make vehicle safe driving; This LED light-emitting diode can utilize the charge fault indicator light of former car to replace.
The numerical value showing according to the rated operational current table 104 determining, reference voltage UB point current potential is adjusted in the value a little less than DC13V, comparative voltage UA point current potential floats by the cumulative load of former car DC12V using electricity system, in the time of comparative voltage UA > reference voltage UB, LED light-emitting diode D2 extinguishes; In the time of comparative voltage UA < reference voltage UB, LED light-emitting diode D2 lights, and this extinguishes---frequency and the DC12V batteries residue of lighting alternation procedure deposit electric weight number relevant; Deposit electric weight fewer, frequency is higher, while becoming normal bright state, represents that the above high voltage power system of DC60V can not be to DC12V batteries electric energy transmitting.
The above high voltage power system of described pure electric automobile DC60V comprises DC60V, DC96V, DC144V, DC240V, DC360V above; the electric pressure that the present invention exemplifies is DC144V; the present invention is equally applicable to the pure electric automobile of other electric pressure, and the DC-DC system indicator that utilizes the present invention to install on other electric pressure pure electric automobile all drops in protection scope of the present invention.
Claims (3)
1. a pure electric automobile DC-DC system indicator that utilizes fuel-engined vehicle charging indicator light to change system into, it is characterized in that, described pure electric automobile DC-DC system indicator comprises a high voltage power system (100) and a DC-DC transducer (107) being connected with DC144V high-tension battery group (105), a DC12V low power used system (200), a monitor and detection circuit board (300);
Between the DC144V high-tension battery group (105) of described high-tension battery group (100) and DC-DC transducer (107), be connected with current limliting insurance (101), control switch (102), operating voltage table (103), rated operational current table (104), drive motors (106); The output of DC-DC transducer (107) is connected with the battery pack (DC12V) of DC12V low power used system (200), the output of battery pack (DC12V) also connects car load safety warning system load (110), car load instrument system load (109), car load lighting system load (108), DC12V nominal load current table (111), and connect with the integrated circuit comparator (LM358) on monitor and detection circuit board (300), one of them is negative input (4), and another is electrode input end (8).
2. according to pure electric automobile DC-DC system indicator claimed in claim 1, it is characterized in that, the integrated circuit comparator (LM358) on monitor and detection circuit board (300) is connected reference voltage adjusting resistance (Rj), is shown resistance (Rx), floating voltage divider resistance (Rb1, Rb2, Rb3), voltage-stabiliser tube (112), LED light-emitting diode (D2); By resistance (Rj) and voltage-stabiliser tube (112), reference voltage UB point current potential is adjusted to a little less than DC13V, and sends into reference voltage input (2); By floating voltage divider resistance (Rb1, Rb2, Rb3), monitored comparative voltage UA is sent into detected floating voltage input (3).
3. according to pure electric automobile DC-DC system indicator claimed in claim 1, it is characterized in that, the above high voltage power system of DC60V comprises DC60V, DC96V, DC144V, DC 240V, DC360V electric pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210508568.5A CN103841717A (en) | 2012-11-21 | 2012-11-21 | Pure electric vehicle DC-DC system indicating lamp formed by transforming fuel-powered vehicle charge lamp |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210508568.5A CN103841717A (en) | 2012-11-21 | 2012-11-21 | Pure electric vehicle DC-DC system indicating lamp formed by transforming fuel-powered vehicle charge lamp |
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| CN103841717A true CN103841717A (en) | 2014-06-04 |
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Application publication date: 20140604 |