CN204687963U - For the supervision warning device of automobile power system - Google Patents
For the supervision warning device of automobile power system Download PDFInfo
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- CN204687963U CN204687963U CN201520333370.7U CN201520333370U CN204687963U CN 204687963 U CN204687963 U CN 204687963U CN 201520333370 U CN201520333370 U CN 201520333370U CN 204687963 U CN204687963 U CN 204687963U
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Abstract
For the deficiency of existing automobile power source monitor unit, the utility model provides a kind of supervision warning device of automobile power system, comprises electrical generator output detection circuit, main control chip, driver output circuit, attention display and alarm buzzer; Wherein, electrical generator output detection circuit, driver output circuit, attention display are connected with main control chip respectively with alarm buzzer; In addition: be also provided with 1 storage battery output detection circuit, the mouth of described storage battery output detection circuit is connected with main control chip; Storage battery output detection circuit is responsible for the electric quantity signal of collection storage battery and is transferred to main control chip.The technique effect that the utility model is useful is: the utility model increases storage battery output detection circuit, makes original circuit namely can receive by the basis of the signal of generator feedback, can receive again the signal by being fed back by storage battery.
Description
Technical field
The utility model relates to field of automobile, is specially the supervision warning device for automobile power system.
Background technology
Automobile power system mainly contains two large main power sources: storage battery and electrical generator, and namely storage battery is storage chemical energy, in releasing a kind of electrochemical devices of electric energy if desired.Automobile current generator is the main power source of automobile, and its function is when normal working of engine (more than idling), to all consumers (except starter) power supply, simultaneously to battery charge.
Electrical generator by the outside regulated output voltage of generator voltage controller, will cause generator output voltage overvoltage or under-voltage when its et out of order.No matter be that overvoltage all can the safety of serious harm vehicle or under-voltage.Therefore, needing the mode of operation monitoring automobile power system, traffic safety is guaranteed.Current way monitors power-supply system by charging indicator light or volt meter.After opening ignition lock, charging indicator light is bright, when driving engine runs, after electrical generator exports electricity, charging indicator light goes out, when generator output voltage overvoltage or under-voltage time charging indicator light change not obvious---although volt meter can accurately show and monitor the change of generator voltage, cannot obtain by the charge condition of the storage battery of generator charging.But it is not obvious all to there is warning effect, the warning function that power-supply system breaks down is not obvious, is easily ignored by chaufeur.
As improvement, enterprise is had to detect electrical generator whether generate electricity by installing electrical generator output detection circuit 1 and main control chip 2 additional, and make corresponding warning by driver output circuit 3, attention display 4 and alarm buzzer 5, this method is accurately many compared with the former undoubtedly.But the method is not still monitored the output voltage of electrical generator and the output voltage of storage battery respectively; And the mode of operation of electrical generator is not consistent with the mode of operation of storage battery, therefore this detection can't make chaufeur fully understand the running state of automobile power system electrical generator and storage battery.
For this reason, require further improvement existing automobile power source monitoring equipment, it comprehensively can be monitored automobile power system.
Utility model content
For the deficiency of existing automobile power source monitor unit, the utility model provides a kind of supervision warning device of automobile power system, can carry out overall supervision and warning to automobile power system.Its concrete structure is as follows:
For the supervision warning device of automobile power system, comprise electrical generator output detection circuit 1, main control chip 2, driver output circuit 3, attention display 4 and alarm buzzer 5; Wherein, electrical generator output detection circuit 1, driver output circuit 3, attention display 4 are connected with main control chip 2 respectively with alarm buzzer 5; In addition: be also provided with 1 storage battery output detection circuit 6, the mouth of described storage battery output detection circuit 6 is connected with main control chip 2; Storage battery output detection circuit 6 is responsible for the electric quantity signal of collection storage battery and is transferred to main control chip 2.
the technique effect that the utility model is useful is
The utility model increases storage battery output detection circuit 6, make original circuit can receive by the basis of the signal of generator feedback, the signal by being fed back by storage battery can be received again, realize reporting to the police to the supervision of storage battery and electrical generator: after voltage below level, generator voltage controller after discharged or defective battery lose efficacy, output voltage shakiness occurred too low or excessively high, can be detected and warn in real time by the utility model simultaneously.Make chaufeur can abnormal, the trouble-shooting of Timeliness coverage.Avoid larger loss.The utility model especially can find the fault that also early warning occurs because generator output voltage is too high as early as possible.
The utility model only increases by one for storage battery sample circuit on the basis of existing equipment, and structure is simple, and it is convenient to install additional, and upgrade cost is low, and significantly improves the Electrical Safety of vehicle.
The utility model also comprise one with the voltage conversion circuit of storage battery sample circuit comm port, can be 3.3V by the 12V voltage transitions of storage battery, for the driving system of automobile.This pressure drop circuit structure is simple, and integrates with the sample circuit for storage battery, and the space that the utility model is taken is little, and applicability is strong.
Electrical generator output detection circuit 1 of the present utility model and storage battery output detection circuit 6 components and parts used few, and circuit structure is identical, avoids assembling wrongly installed and measured error that is that cause, has higher assembling yields and promotional value.
Accompanying drawing explanation
Fig. 1 is structured flowchart of the present utility model.
Fig. 2 is the circuit diagram of Fig. 1.
Detailed description of the invention
Now be described with reference to the accompanying drawings constructional feature of the present utility model.
See Fig. 1, for the supervision warning device of automobile power system, comprise electrical generator output detection circuit 1, main control chip 2, driver output circuit 3, attention display 4 and alarm buzzer 5; Wherein, electrical generator output detection circuit 1, driver output circuit 3, attention display 4 are connected with main control chip 2 respectively with alarm buzzer 5; In addition: be also provided with 1 storage battery output detection circuit 6, the mouth of described storage battery output detection circuit 6 is connected with main control chip 2; Storage battery output detection circuit 6 is responsible for the electric quantity signal of collection storage battery and is transferred to main control chip 2.
See Fig. 2, storage battery output detection circuit 6 is made up of resistance R2, resistance R3, resistance R4, electric capacity C4, electric capacity C5; Wherein, one end of resistance R2 is connected with one end of resistance R3, one end of resistance R4, one end of electric capacity C4 respectively; One end common ground of the other end of resistance R3, the other end of electric capacity C4, electric capacity C5; The other end of resistance R4 is connected with the other end of electric capacity C5; The other end of resistance R2 is the signal input part of storage battery output detection circuit 6; The point of connection of resistance R4 and electric capacity C5 is the signal output part of storage battery output detection circuit 6.
Furtherly, the model of main control chip 2 is the STM32 series 32-bit microprocessor of ST Microelectronics, and chip model is STM32F103C8T6;
See Fig. 2, the mouth of electrical generator output detection circuit 1 is connected with the 17th pin of main control chip 2.
See Fig. 2, the mouth of storage battery output detection circuit 6 is connected with the 12nd pin of main control chip 2.
See Fig. 2, electrical generator output detection circuit 1 is made up of resistance R5, resistance R6, resistance R7, electric capacity C6, electric capacity C7; Wherein, one end of resistance R5 is connected with one end of resistance R6, one end of resistance R7, one end of electric capacity C6 respectively; One end common ground of the other end of resistance R6, the other end of electric capacity C6, electric capacity C7; The other end of resistance R7 is connected with the other end of electric capacity C7; The other end of resistance R5 is the signal input part of electrical generator output detection circuit 1; The point of connection of resistance R7 and electric capacity C7 is the signal output part of electrical generator output detection circuit 1.
See Fig. 1, be provided with voltage conversion circuit 7 at the input end of storage battery output detection circuit 6; Described voltage conversion circuit 7 is responsible for from storage battery power taking, and becomes 3.3V to export the voltage transitions of 12V.
See Fig. 2, voltage conversion circuit 7 is made up of K switch, diode D1, resistance R1, electric capacity C1, electric capacity C2, electric capacity C3 and supply convertor J; Described supply convertor J comprises VIN pin, V5 pin and GND pin; Wherein, one end of K switch is connected with the positive pole of diode D1; The negative pole of diode D1 is connected with one end of resistance R1; The positive pole of electric capacity C1, the VIN pin of supply convertor J are connected the other end of resistance R1 respectively; The V5 pin of supply convertor J is connected with the positive pole of electric capacity C2, one end of electric capacity C3 respectively; The other end common ground of the negative pole of electric capacity C1, the negative pole of electric capacity C2, electric capacity C3; The GND pin ground connection of supply convertor J; The other end of K switch is the input end of voltage conversion circuit 7; Supply convertor J is the mouth of voltage conversion circuit 7.
See Fig. 2, the point of connection of diode D1 and resistance R1 connects 12V voltage, and the point of connection of electric capacity C2 and electric capacity C3 connects 3.3V voltage.
Claims (9)
1., for the supervision warning device of automobile power system, comprise electrical generator output detection circuit (1), main control chip (2), driver output circuit (3), attention display (4) and alarm buzzer (5); Wherein, electrical generator output detection circuit (1), driver output circuit (3), attention display (4) are connected with main control chip (2) respectively with alarm buzzer (5); It is characterized in that: be also provided with 1 storage battery output detection circuit (6), the mouth of described storage battery output detection circuit (6) is connected with main control chip (2); Storage battery output detection circuit (6) is responsible for the electric quantity signal of collection storage battery and is transferred to main control chip (2).
2. the supervision warning device for automobile power system according to claim 1, is characterized in that: storage battery output detection circuit (6) is made up of resistance R2, resistance R3, resistance R4, electric capacity C4, electric capacity C5; Wherein, one end of resistance R2 is connected with one end of resistance R3, one end of resistance R4, one end of electric capacity C4 respectively; One end common ground of the other end of resistance R3, the other end of electric capacity C4, electric capacity C5; The other end of resistance R4 is connected with the other end of electric capacity C5; The other end of resistance R2 is the signal input part of storage battery output detection circuit (6); The point of connection of resistance R4 and electric capacity C5 is the signal output part of storage battery output detection circuit (6).
3. the supervision warning device for automobile power system according to claim 1, is characterized in that: the model of main control chip (2) is STM32F103C8T6.
4. the supervision warning device for automobile power system according to claim 3, is characterized in that: the mouth of electrical generator output detection circuit (1) is connected with the 17th pin of main control chip (2).
5. the supervision warning device for automobile power system according to claim 3, is characterized in that: the mouth of storage battery output detection circuit (6) is connected with the 12nd pin of main control chip (2).
6. the supervision warning device for automobile power system according to claim 3, is characterized in that: electrical generator output detection circuit (1) is made up of resistance R5, resistance R6, resistance R7, electric capacity C6, electric capacity C7; Wherein, one end of resistance R5 is connected with one end of resistance R6, one end of resistance R7, one end of electric capacity C6 respectively; One end common ground of the other end of resistance R6, the other end of electric capacity C6, electric capacity C7; The other end of resistance R7 is connected with the other end of electric capacity C7; The other end of resistance R5 is the signal input part of electrical generator output detection circuit (1); The point of connection of resistance R7 and electric capacity C7 is the signal output part of electrical generator output detection circuit (1).
7. the supervision warning device for automobile power system according to claim 1, is characterized in that: be provided with voltage conversion circuit (7) at the input end of storage battery output detection circuit (6); Described voltage conversion circuit (7) is responsible for from storage battery power taking, and becomes 3.3V to export the voltage transitions of 12V.
8. the supervision warning device for automobile power system according to claim 3, is characterized in that: voltage conversion circuit (7) is made up of K switch, diode D1, resistance R1, electric capacity C1, electric capacity C2, electric capacity C3 and supply convertor J; Described supply convertor J comprises VIN pin, V5 pin and GND pin; Wherein, one end of K switch is connected with the positive pole of diode D1; The negative pole of diode D1 is connected with one end of resistance R1; The positive pole of electric capacity C1, the VIN pin of supply convertor J are connected the other end of resistance R1 respectively; The V5 pin of supply convertor J is connected with the positive pole of electric capacity C2, one end of electric capacity C3 respectively; The other end common ground of the negative pole of electric capacity C1, the negative pole of electric capacity C2, electric capacity C3; The GND pin ground connection of supply convertor J; The other end of K switch is the input end of voltage conversion circuit (7); Supply convertor J is the mouth of voltage conversion circuit (7).
9. the supervision warning device for automobile power system according to claim 8, it is characterized in that: the point of connection of diode D1 and resistance R1 connects 12V voltage, the point of connection of electric capacity C2 and electric capacity C3 connects 3.3V voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520333370.7U CN204687963U (en) | 2015-05-22 | 2015-05-22 | For the supervision warning device of automobile power system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520333370.7U CN204687963U (en) | 2015-05-22 | 2015-05-22 | For the supervision warning device of automobile power system |
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| Publication Number | Publication Date |
|---|---|
| CN204687963U true CN204687963U (en) | 2015-10-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520333370.7U Active CN204687963U (en) | 2015-05-22 | 2015-05-22 | For the supervision warning device of automobile power system |
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| Country | Link |
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| CN (1) | CN204687963U (en) |
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- 2015-05-22 CN CN201520333370.7U patent/CN204687963U/en active Active
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