CN201438265U - Power supply control system of combined meter - Google Patents
Power supply control system of combined meter Download PDFInfo
- Publication number
- CN201438265U CN201438265U CN2009201212204U CN200920121220U CN201438265U CN 201438265 U CN201438265 U CN 201438265U CN 2009201212204 U CN2009201212204 U CN 2009201212204U CN 200920121220 U CN200920121220 U CN 200920121220U CN 201438265 U CN201438265 U CN 201438265U
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- triode
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- power supply
- control system
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Abstract
The utility model provides a power supply control system of a combined meter, which belongs to the field of the electronic technology and solves the problem that the quiescent current of the present meter cannot reach the minimality. The power supply control system of the combined meter comprises a power supply, a CPU (central processing unit), a switch circuit and a condition open circuit. The switch circuit and the condition open circuit are connected together in series. The condition open circuit is used for receiving state information of a left front door, a width lamp and/or a key, and sending a control signal to the switch circuit. The power supply supplies power for the CPU. The switch circuit is arranged on a power supply line of the power supply against the CPU, and is used for receiving the control signal sent by the condition open circuit and controlling the on/off of the line. An alarm circuit used for sending alarms is connected with the CPU. The power supply control system of the combined meter greatly reduces the static current under the premise of sending alarms about the conditions that the key is forgotten to be pulled out and the width lamp is not turned off.
Description
Technical field
The utility model belongs to electronic technology field, relates to the control system on a kind of vehicle, the power control system of combination instrument on particularly a kind of vehicle.
Background technology
Automobile instrument enters the stepper motor type all-digital auto instrument epoch.Instrument adopts stepper motor to drive the mode of pointer indicating graduation, and the stepper motor clear point needs programmed control; Therefore the automobile instrument course of work is designed to the ignition switch closure, the instrument beginning operate as normal that powers on; After ignition switch was closed, by storage battery power supply, instrument was in holding state.But this mode quiescent current is subject to the power supply of single-chip microcomputer, can't reach minimum.
In order to reduce quiescent current, existing method is after ignition switch is closed, and instrument detects cuts off the power supply after stepper motor is got back to zero point fully.Though this scheme has solved static power consumption minimum, behind the gage pointer zero-returning, if key does not pull out or side-marker lamp is forgotten to close and just can't be pointed out.
Summary of the invention
The purpose of this utility model be at existing vehicle behind switch-off, can't point out the problem of warning to the situation that key does not pull out or side-marker lamp does not close, and after having proposed a kind of switch-off, forget to pull out under the situation of forgetting to close with side-marker lamp the temporary transient accumulator of connecting at key and power, finish the combination instrument power control system that prompting is reported to the police.
The purpose of this utility model can realize by following technical proposal: a kind of combination instrument power control system, it is characterized in that, described control system comprises power supply, central processing unit and the on-off circuit that is serially connected and condition open circuit, described condition open circuit is used to receive left front door, the status information of side-marker lamp and/or key, and send control signal to on-off circuit, power supply is powered to central processing unit, above-mentioned on-off circuit is arranged in the supply line of power supply to central processing unit, be used for the break-make of this circuit of control after the control signal that the condition of acceptance open circuit sends, be connected with the warning circuit of reporting to the police on the central processing unit.
The condition open circuit is not pulled out signal output part with left front gate signal output terminal, key and is connected with the side-marker lamp signal output part, is used to receive the status information of left front door, key and side-marker lamp.When left front door is opened under the situation, occur wherein a kind of or both occur simultaneously if side-marker lamp does not close the situation of not pulling out with key, after the condition open circuit receives their status information, on-off circuit is sent control signal, on-off circuit control power connection is powered to central processing unit, so that the warning circuit on the central processing unit is finished alarm.
Have only under the prerequisite that left front door is opened, and side-marker lamp do not close the situation of not pulling out with key when occurring that wherein one or both occur simultaneously, power supply just can connect continuation to central processing unit power supply finish alarm.Under other situations, power supply disconnects the feed circuit of central processing unit, finishes outage on the instrument, realizes the quiescent current minimum.
In above-mentioned combination instrument power control system, described condition open circuit comprises that the signal that is used for the high-low level signal of left front door and side-marker lamp and/or key output is changed receives change-over circuit and control signal output circuit, and the control signal output circuit receives and after signal receives the level signal that change-over circuit exports above-mentioned on-off circuit sent control signal.
The signal of output was a low level when left front door was opened, and the signal of output was not a low level when key pulled out, and the signal of output was not a high level when side-marker lamp closed.Signal reception change-over circuit converts the status signal of left front door, side-marker lamp and key to control signal output circuit required level signal.The control signal output circuit then according to these level signal output control signal corresponding, is controlled above-mentioned on-off circuit and is finished the break-make of circuit.
In above-mentioned combination instrument power control system, described on-off circuit comprises the triode Q1 of a positive-negative-positive and the triode Q3 of a NPN type, the emitter of described triode Q1 is connected with power supply, the base stage of triode Q1 is connected with the collector of triode Q3, the collector of triode Q1 is connected with central processing unit, the base stage of described triode Q3 is connected with the output terminal of condition open circuit, the grounded emitter of triode Q3.
When the output terminal of condition open circuit is exported high level, triode Q3 conducting, the base stage of triode Q1 is a low level, triode Q1 conducting, power supply is finished closure function to the supply line of central processing unit, energized, and central processing unit gets electric back control warning circuit and reports to the police.
In above-mentioned combination instrument power control system, described signal receives triode Q4 and the triode Q5 that change-over circuit comprises two positive-negative-positives, the base stage of triode Q4 is connected with left front gate signal output terminal, emitter is connected with power supply, collector is connected with the control signal output circuit, the base stage of described triode Q5 is not pulled out signal output part with key and is connected, and emitter is connected with power supply, and collector is connected with the control signal output circuit.
In above-mentioned combination instrument power control system, described control signal output circuit comprises the triode Q6 of a positive-negative-positive and the triode Q7 of a NPN type, be connected on the collector of triode Q5 after resistance R 10 of base stage serial connection of triode Q7, grounded emitter, collector is connected with the base stage of triode Q6, the base stage of triode Q3 in the collector of triode Q6 and the said switching circuit is connected, emitter is connected with the collector of above-mentioned triode Q4, is connected on the base stage of triode Q7 after resistance R 9 of side-marker lamp signal output part serial connection.
When left front door is opened, left front gate signal output terminal output low level, triode Q4 conducting, the emission of triode Q6 is high level very.When key did not pull out, key did not pull out the signal output part output low level, and the R10 both end voltage is drawn high in triode Q5 conducting, and the base stage of triode Q7 is a high level, triode Q7 conducting.When side-marker lamp did not close, side-marker lamp signal output part output high level was drawn high the R9 both end voltage simultaneously, can make the base stage of triode Q7 uprise level equally, turn-on transistor Q7.After the triode Q7 conducting, the collector output low level is to the base stage of triode Q6, and the high level of triode Q4 collector output is to the emitter of triode Q6 simultaneously, but therefore turn-on transistor Q6, and triode Q6 collector output high level is given on-off circuit.On-off circuit is according to the supply line of this high level energized to central processing unit.
In above-mentioned combination instrument power control system, described warning circuit comprises a buzzer siren that is connected with central processing unit.
In above-mentioned combination instrument power control system, be connected with an interrupt circuit between described central processing unit and the on-off circuit, be used for of the supply line disconnection of gauge tap circuit with central processing unit.
In above-mentioned combination instrument power control system, described interrupt circuit comprises a positive-negative-positive triode Q2, and the base stage of triode Q2 is connected with control end on the central processing unit, and collector is connected with the base stage of above-mentioned triode Q3, and emitter is connected with power supply.
Control end on the central processing unit ends triode Q2 to triode Q2 output high level, and Q2 ends because of triode, and then triode Q3 can't conducting, and triode Q3 control triode Q 1 turn-offs.
In above-mentioned combination instrument power control system, be connected with regulator block between described on-off circuit and the central processing unit.Regulator block changes into stable low-voltage with high voltage and supplies with central processing unit.
Compared with prior art, this combination instrument power control system can be opened under the situation at left front door after vehicle is flame-out, side-marker lamp is not closed the situation of not pulling out with key wake up with a start detection, and temporary transient energized is carried out alarm.And side-marker lamp close pull up with key after deenergization again, reduce quiescent current.Guaranteeing key forgotten to pull out under the prerequisite that the situation of not closing with side-marker lamp reports to the police, greatly reduced quiescent current.
Description of drawings
Fig. 1 is the circuit block diagram of this combination instrument power control system.
Fig. 2 is the circuit diagram of this combination instrument power control system.
Embodiment
Below be specific embodiment of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiment.
As shown in Figure 1, this combination instrument power control system comprises power supply, central processing unit and the signal that is serially connected successively receives change-over circuit, control signal output circuit and on-off circuit.Be serially connected with a regulator block between central processing unit and the on-off circuit, power supply is connected with on-off circuit, is connected with ignition switch IG between regulator block and the on-off circuit, is connected with stepper motor and warning circuit on the central processing unit.Be serially connected with an interrupt circuit between central processing unit and the switching current.In the present embodiment, power supply is an accumulator, and warning circuit is a buzzer siren that is connected on the central processing unit.
Signal receives the status signal that change-over circuit is used to receive left front door, side-marker lamp and/or key, and convert these status signals to control signal output circuit required level signal and be transferred to the control signal output circuit, the control signal output circuit then according to these level signal output control signal corresponding, is controlled above-mentioned on-off circuit and is finished the break-make of circuit.
As shown in Figure 2, on-off circuit comprises the triode Q1 of a positive-negative-positive and the triode Q3 of a NPN type, the emitter of described triode Q1 is connected with accumulator, the base stage of triode Q1 is connected with the collector of triode Q3, the collector of triode Q1 is connected with central processing unit, the base stage of described triode Q3 is connected with the output terminal of control signal output circuit, the grounded emitter of triode Q3.
Signal receives triode Q4 and the triode Q5 that change-over circuit comprises two positive-negative-positives, the base stage of triode Q4 is connected with left front gate signal output terminal, emitter is connected with accumulator, collector is connected with the control signal output circuit, the base stage of described triode Q5 is not pulled out signal output part with key and is connected, emitter is connected with accumulator, and collector is connected with the control signal output circuit.
The control signal output circuit comprises the triode Q6 of a positive-negative-positive and the triode Q7 of a NPN type, be connected on the collector of triode Q5 after resistance R 10 of base stage serial connection of triode Q7, grounded emitter, collector is connected with the base stage of triode Q6, the base stage of triode Q3 in the collector of triode Q6 and the said switching circuit is connected, emitter is connected with the collector of above-mentioned triode Q4, is connected on the base stage of triode Q7 after resistance R 9 of side-marker lamp signal output part serial connection.
Interrupt circuit comprises a positive-negative-positive triode Q2, and the base stage of triode Q2 is connected with control end on the central processing unit, and collector is connected with the base stage of above-mentioned triode Q3, and emitter is connected with the output terminal of regulator block.
Left front gate signal output terminal, key do not pull out signal output part and are connected with the base stage of triode Q4, the base stage of triode Q5 and the base stage of triode Q7 respectively with the side-marker lamp signal output part, are used to export the status information of left front door, key and side-marker lamp.
After vehicle was flame-out, central processing unit control step motor returned zero, and powered to central processing unit by accumulator this moment.After pointer is gone to zero-bit, central processing unit postpones to send look-at-me from control end after the several seconds, the base stage of triode Q2 is a high level, triode Q2 is ended, Q2 ends because of triode, and then triode Q3 can't conducting, and triode Q3 control triode Q1 turn-offs, accumulator interrupts being the regulator block power supply that regulator block changes into stable low-voltage with high voltage and supplies with central processing unit.
When left front door is opened, left front gate signal output terminal output low level, triode Q4 conducting, the emission of triode Q6 is high level very.When key did not pull out, key did not pull out the signal output part output low level, and the R10 both end voltage is drawn high in triode Q5 conducting, and the base stage of triode Q7 is a high level, triode Q7 conducting.When side-marker lamp did not close, side-marker lamp signal output part output high level was drawn high the R9 both end voltage simultaneously, can make the base stage of triode Q7 uprise level equally, turn-on transistor Q7.After the triode Q7 conducting, the collector output low level is to the base stage of triode Q6, and the high level of triode Q4 collector output is to the emitter of triode Q6 simultaneously, but therefore turn-on transistor Q6, and triode Q6 collector output high level is given the base stage of triode Q3.Triode Q3 conducting, the base stage of triode Q 1 are low level, triode Q1 conducting, and power supply is finished closure function to the supply line of central processing unit, energized, central processing unit gets electric back control buzzer siren and reports to the police.
As can be seen, have only under the prerequisite that left front door is opened, and side-marker lamp do not close the situation of not pulling out with key when occurring that wherein one or both occur simultaneously, accumulator just can be switched on to central processing unit power supply and finish alarm.Under other situations, accumulator disconnects the feed circuit of central processing unit, finishes outage on the instrument, realizes the quiescent current minimum.
After side-marker lamp did not close and do not pull out state and remove with key, triode Q1 ended, and accumulator disconnects the supply line of regulator block.For the stability of the state that guarantees Q4 and Q5, do not pull out signal output part at left front gate signal output terminal and key and meet pull-up resistor R12 and R13 respectively accumulator; R12 and R13 resistance are chosen 100K.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Claims (9)
1. combination instrument power control system, it is characterized in that, described control system comprises power supply, central processing unit and the on-off circuit that is serially connected and condition open circuit, described condition open circuit is used to receive left front door, the status information of side-marker lamp and/or key, and send control signal to on-off circuit, power supply is powered to central processing unit, above-mentioned on-off circuit is arranged in the supply line of power supply to central processing unit, be used for the break-make of this circuit of control after the control signal that the condition of acceptance open circuit sends, be connected with the warning circuit of reporting to the police on the central processing unit.
2. combination instrument power control system according to claim 1, it is characterized in that, described condition open circuit comprises that the signal that is used for the high-low level signal of left front door and side-marker lamp and/or key output is changed receives change-over circuit and control signal output circuit, and the control signal output circuit receives and after signal receives the level signal that change-over circuit exports above-mentioned on-off circuit sent control signal.
3. combination instrument power control system according to claim 1, it is characterized in that, described on-off circuit comprises the triode Q1 of a positive-negative-positive and the triode Q3 of a NPN type, the emitter of described triode Q1 is connected with power supply, the base stage of triode Q1 is connected with the collector of triode Q3, the collector of triode Q1 is connected with central processing unit, and the base stage of described triode Q3 is connected with the output terminal of condition open circuit, the grounded emitter of triode Q3.
4. combination instrument power control system according to claim 2, it is characterized in that, described signal receives triode Q4 and the triode Q5 that change-over circuit comprises two positive-negative-positives, the base stage of triode Q4 is connected with left front gate signal output terminal, emitter is connected with power supply, and collector is connected with the control signal output circuit, and the base stage of described triode Q5 is not pulled out signal output part with key and is connected, emitter is connected with power supply, and collector is connected with the control signal output circuit.
5. combination instrument power control system according to claim 2, it is characterized in that, described control signal output circuit comprises the triode Q6 of a positive-negative-positive and the triode Q7 of a NPN type, be connected on the collector of triode Q5 after resistance R 10 of base stage serial connection of triode Q7, grounded emitter, collector is connected with the base stage of triode Q6, the base stage of triode Q3 in the collector of triode Q6 and the said switching circuit is connected, emitter is connected with the collector of above-mentioned triode Q4, is connected on the base stage of triode Q7 after resistance R 9 of side-marker lamp signal output part serial connection.
6. according to any described combination instrument power control system of claim 1～4, it is characterized in that described warning circuit comprises a buzzer siren that is connected with central processing unit.
7. according to any described combination instrument power control system of claim 1～4, it is characterized in that, be connected with an interrupt circuit between described central processing unit and the on-off circuit, be used for of the supply line disconnection of gauge tap circuit central processing unit.
8. combination instrument power control system according to claim 7, it is characterized in that, described interrupt circuit comprises a positive-negative-positive triode Q2, the base stage of triode Q2 is connected with control end on the central processing unit, collector is connected with the base stage of above-mentioned triode Q3, and emitter is connected with power supply (VCC).
9. according to any described combination instrument power control system of claim 1～4, it is characterized in that, be connected with regulator block between described on-off circuit and the central processing unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201212204U CN201438265U (en) | 2009-06-01 | 2009-06-01 | Power supply control system of combined meter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201212204U CN201438265U (en) | 2009-06-01 | 2009-06-01 | Power supply control system of combined meter |
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| CN201438265U true CN201438265U (en) | 2010-04-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009201212204U Expired - Lifetime CN201438265U (en) | 2009-06-01 | 2009-06-01 | Power supply control system of combined meter |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102490649A (en) * | 2011-11-22 | 2012-06-13 | 奇瑞汽车股份有限公司 | Control circuit for alarm at not-turn-off of rear fog light and control method thereof |
| CN106647344A (en) * | 2015-11-04 | 2017-05-10 | 法雷奥电机设备公司 | Motor vehicle driving module and control unit |
| WO2017076341A1 (en) * | 2015-11-04 | 2017-05-11 | Valeo Equipements Electriques Moteur | Driving module and control unit of a motor vehicle |
| CN112693395A (en) * | 2020-12-14 | 2021-04-23 | 武汉格罗夫氢能汽车有限公司 | Electronic alarm system for hydrogen energy automobile |
-
2009
- 2009-06-01 CN CN2009201212204U patent/CN201438265U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102490649A (en) * | 2011-11-22 | 2012-06-13 | 奇瑞汽车股份有限公司 | Control circuit for alarm at not-turn-off of rear fog light and control method thereof |
| CN106647344A (en) * | 2015-11-04 | 2017-05-10 | 法雷奥电机设备公司 | Motor vehicle driving module and control unit |
| WO2017076341A1 (en) * | 2015-11-04 | 2017-05-11 | Valeo Equipements Electriques Moteur | Driving module and control unit of a motor vehicle |
| CN106647344B (en) * | 2015-11-04 | 2020-02-21 | 法雷奥电机设备公司 | Drive module and control unit for a motor vehicle |
| CN112693395A (en) * | 2020-12-14 | 2021-04-23 | 武汉格罗夫氢能汽车有限公司 | Electronic alarm system for hydrogen energy automobile |
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| CX01 | Expiry of patent term |
Granted publication date: 20100414 |
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| CX01 | Expiry of patent term |