CN103144542B - A kind of automatic power off control system - Google Patents
A kind of automatic power off control system Download PDFInfo
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- CN103144542B CN103144542B CN201310086132.6A CN201310086132A CN103144542B CN 103144542 B CN103144542 B CN 103144542B CN 201310086132 A CN201310086132 A CN 201310086132A CN 103144542 B CN103144542 B CN 103144542B
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- power
- microcontroller
- input interface
- mos switch
- output interface
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The present invention discloses a kind of automatic power off control system, comprise power input interface and power output interface, it is characterized in that: between power input interface and power output interface, be serially connected with MOS switch, the described switch control terminal of MOS switch is connected with the output pin of microcontroller, an input pin of microcontroller is connected on diagnostic equipment instruction input interface, the on off state of the system mode instruction control MOS switch that microcontroller inputs according to diagnostic equipment instruction input interface, thus the break-make realized between power input interface and power output interface controls.Its remarkable result is: can be used for automobile power source intelligent management, controlled by the real-time detection to automotive system state and the break-make to supply line, achieve the intelligent management to automobile power source, avoid because long-term overdischarge causes automobile not start, improve the safety and stability of electric power system.
Description
Technical field
The present invention relates to a kind of power-supply management system, specifically, is a kind of automatic power off control system.
Background technology
Under the common promotion of automotive technology and Eltec development, increasing electronic product is applied on automobile, thus improves the safety of automobile, stability, traveling comfort and recreational.Power supply is a major part of automobile, usually adopts storage battery to be that automobile is powered, and when automobile is in storage and transport process or long-term static condition, needs to interrupt power supply supply, thus avoids battery to lose and prolonging service life of battery.
Traditional power management mainly adopts and manually removes battery-end wire harness or remove the power operations such as power supply plug-in unit, intelligence degree is low, operating difficulties, easily forget, if automobile leaves standstill for a long time, storage battery meeting over discharge, once power shortage is serious, automobile just can not normally start, and causes very big inconvenience to car owner.
Summary of the invention
In order to solve the problem, the present invention proposes a kind of automatic power off control system, the storage battery power supply management for automobile storage and transport process or when leaving standstill for a long time, avoids, because long-term overdischarge causes automobile not start, reducing over electric discharge and causing battery damage.
For achieving the above object, the technical solution adopted in the present invention is as follows:
A kind of automatic power off control system, comprise power input interface and power output interface, its key is: between described power input interface and power output interface, be serially connected with MOS switch, the described switch control terminal of MOS switch is connected with the output pin of microcontroller, an input pin of described microcontroller is connected on diagnostic equipment instruction input interface, the on off state of the system mode instruction control MOS switch that microcontroller inputs according to diagnostic equipment instruction input interface, thus the break-make realized between power input interface and power output interface controls.
As preferably, described power output interface is provided with power output interface A and power output interface B two-way exports, a MOS switch is connected in series between power input interface with power output interface A, be connected in series the 2nd MOS switch between power input interface with power output interface B, the switch control terminal of a described MOS switch and the 2nd MOS switch and two output pins of described microcontroller connect one to one.
In order to realize the supply regular power of microcontroller, described microcontroller is provided with power pin VCC and ground pin GND, described power pin VCC is connected on the mouth of Voltage stabilizing module, the input end of this Voltage stabilizing module is connected with described power input interface, and described ground pin GND is connected in grounding ports.
Further, between described power input interface and the input end of Voltage stabilizing module, power supply counnter attack diode is serially connected with.
In order to realize the Clock management of microcontroller, described microcontroller is provided with clock pins CLK, and this clock pins CLK is connected with clock circuit.
Described MOS switch is provided with current feedback terminal, and each current feedback terminal is connected with a current sense pin of described microcontroller.
Remarkable result of the present invention is: can be used for automobile power source intelligent management, power input interface is connected with the mouth of automotive battery, be that the equipment such as automotive instruments instrument are powered by power output interface, diagnostic equipment instruction input interface input automobile operating state instruction, when automobile leaves standstill for a long time, system is in dormant state, microprocessor control MOS switch disconnects, the controlled plants such as automotive instruments instrument are in off-position, microcontroller quiescent dissipation drops to enough low, thus avoids storage battery over discharge.Detect that external forced wakes instruction up once microcontroller, then automobile is in normal working, microprocessor control MOS switch conduction, the controlled plants such as automotive instruments instrument power on and recover normal work, controlled by the real-time detection to automotive system state and the break-make to supply line, achieve the intelligent management to automobile power source, avoid because long-term overdischarge causes automobile not start, improve the safety and stability of electric power system.
Accompanying drawing explanation
Fig. 1 is schematic block circuit diagram of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention and principle of work are described in further detail.
As shown in Figure 1, a kind of automatic power off control system, comprise power input interface 1 and power output interface 2, for vehicle power management, described power output interface 2 is provided with power output interface A and power output interface B two-way exports, a MOS switch 3 is connected in series between power input interface 1 with power output interface A, the 2nd MOS switch 3 ' is connected in series between power input interface 1 with power output interface B, the switch control terminal of a described MOS switch 3 and the 2nd MOS switch 3 ' and two output pins of described microcontroller 4 connect one to one, an input pin of described microcontroller 4 is connected on diagnostic equipment instruction input interface 5, microcontroller 4 controls a MOS switch 3 or/and the on off state of the 2nd MOS switch 3 ' according to the system mode instruction that diagnostic equipment instruction input interface 5 inputs, thus the break-make realized between power input interface 1 and power output interface 2 controls.
In implementation process, microcontroller 4 is provided with power pin VCC and ground pin GND, described power pin VCC is connected on the mouth of Voltage stabilizing module 6, the input end of this Voltage stabilizing module 6 is connected with described power input interface 1, described ground pin GND is connected in grounding ports 7, thus provide working power for microcontroller 4, in order to avoid electric current is reverse, between described power input interface 1 and the input end of Voltage stabilizing module 6, be serially connected with power supply counnter attack diode 8.
In order to realize the clock input of microcontroller 4, described microcontroller 4 is provided with clock pins CLK, and this clock pins CLK is connected with clock circuit 9.
Detect for the ease of power supply state, a described MOS switch 3 and the 2nd MOS switch 3 ' are provided with current feedback terminal, each current feedback terminal is connected with a current sense pin of described microcontroller 4, whether microcontroller 4, according to the current feedback situation of each MOS switch, can decision-making system power normal.
This system is applied in vehicle power management system, power input interface 1 is connected with the power supply output line of automotive battery, and power output interface A and power output interface B gives EMS(EngineManegementSystem engine management system respectively), BCM(BodyControlModule Body control module), sound equipment, instrument, skylight, room light etc. need the system of post power supply to provide power supply.
Principle of work of the present invention is:
When vehicle normally uses, microcontroller 4 controls a MOS switch 3 and the 2nd MOS switch 3 ' conducting, and automotive battery needs the system of post power supply to provide power supply to EMS, BCM, sound equipment, instrument, skylight, room light etc.
When vehicle is in static condition, system hibernates, microcontroller 4 can detect the dormancy instruction of external device by diagnostic equipment instruction input interface 5, automatically deep sleep state is entered, initiatively cut off the power supply of the systems such as EMS, BCM, sound equipment, instrument, skylight, room light, make these systems be in off-position, microcontroller 4 quiescent dissipation drops to enough low, thus it is minimum to make car load power consumption drop to, reduce battery discharging.
When again starting vehicle, by diagnostic equipment instruction input interface 5, microcontroller 4 can detect that the pressure of external device wakes instruction up, control MOS switch conduction again, thus automatically give the in check system electrification such as EMS, BCM, sound equipment, instrument, skylight, room light, so these systems recover its intrinsic function immediately.
By adopting system mode instruction detection and the automatic control to MOS switch, achieving the automation of automobile power source, intelligent management, avoiding, because long-term overdischarge causes automobile not start, improve the safety and stability of electric power system.
Claims (5)
1. an automatic power off control system, comprise power input interface (1) and power output interface (2), it is characterized in that: between described power input interface (1) and power output interface (2), be serially connected with MOS switch (3/3 '), the switch control terminal of described MOS switch (3/3 ') is connected with the output pin of microcontroller (4), an input pin of described microcontroller (4) is connected on diagnostic equipment instruction input interface (5), the on off state of system mode instruction control MOS switch (3/3 ') that microcontroller (4) inputs according to diagnostic equipment instruction input interface (5), thus the break-make realized between power input interface (1) and power output interface (2) controls,
Described power output interface (2) is provided with power output interface A and power output interface B two-way exports, power input interface (1) be connected in series a MOS switch (3) between power output interface A, power input interface (1) be connected in series the 2nd MOS switch (3 ') between power output interface B, a described MOS switch (3) and the switch control terminal of the 2nd MOS switch (3 ') and two output pins of described microcontroller (4) connect one to one;
When vehicle normally uses, microcontroller (4) controls a MOS switch (3) and the 2nd MOS switch (3 ') conducting, automotive battery to EMS, BCM, sound equipment, instrument, skylight, room light these need the system of post power supply to provide power supply;
When vehicle is in static condition, system hibernates, microcontroller (4) detects the dormancy instruction of external device by diagnostic equipment instruction input interface (5), automatically deep sleep state is entered, initiatively cut off the power supply of EMS, BCM, sound equipment, instrument, skylight, room light, make these systems be in off-position, microcontroller (4) quiescent dissipation reduces;
When again starting vehicle, by diagnostic equipment instruction input interface (5), microcontroller (4) detects that the pressure of external device wakes instruction up, control MOS switch conduction again, gives EMS, BCM, sound equipment, instrument, skylight, these in check system electrification of room light automatically.
2. a kind of automatic power off control system according to claim 1, it is characterized in that: described microcontroller (4) is provided with power pin VCC and ground pin GND, described power pin VCC is connected on the mouth of Voltage stabilizing module (6), the input end of this Voltage stabilizing module (6) is connected with described power input interface (1), and described ground pin GND is connected in grounding ports (7).
3. a kind of automatic power off control system according to claim 2, is characterized in that: between described power input interface (1) and the input end of Voltage stabilizing module (6), be serially connected with power supply counnter attack diode (8).
4. a kind of automatic power off control system according to claim 1, is characterized in that: described microcontroller (4) is provided with clock pins CLK, and this clock pins CLK is connected with clock circuit (9).
5. a kind of automatic power off control system according to claim 1, it is characterized in that: on described MOS switch (3/3 '), be provided with current feedback terminal, each current feedback terminal is connected with a current sense pin of described microcontroller (4).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310086132.6A CN103144542B (en) | 2013-03-18 | 2013-03-18 | A kind of automatic power off control system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310086132.6A CN103144542B (en) | 2013-03-18 | 2013-03-18 | A kind of automatic power off control system |
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| CN103144542A CN103144542A (en) | 2013-06-12 |
| CN103144542B true CN103144542B (en) | 2016-01-06 |
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| CN201310086132.6A Expired - Fee Related CN103144542B (en) | 2013-03-18 | 2013-03-18 | A kind of automatic power off control system |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104599658A (en) * | 2014-10-31 | 2015-05-06 | 惠州市华阳多媒体电子有限公司 | Display brightness adjusting method and device |
| CN105353681B (en) * | 2015-11-20 | 2018-02-16 | 云南名网卫星通讯运用股份有限公司 | A kind of method that OBD equipment is waken up by voltage pulsation |
| CN110733347B (en) * | 2018-07-18 | 2023-09-15 | 蔚来(安徽)控股有限公司 | Vehicle low-power-consumption dormancy control method and control system thereof |
| CN110147045B (en) * | 2019-05-07 | 2022-07-19 | 青岛海尔空调器有限总公司 | Control method and control device of power supply equipment and power supply equipment |
| CN111720226B (en) * | 2019-09-06 | 2022-03-18 | 株式会社电装 | Engine control device and control method thereof |
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| CN2794005Y (en) * | 2005-04-28 | 2006-07-05 | 美固电子(深圳)有限公司 | Under-voltage protecting circuit for battery |
| CN201029202Y (en) * | 2006-12-07 | 2008-02-27 | 徐志强 | Vehicle accumulator protector |
| CN101277009A (en) * | 2007-03-30 | 2008-10-01 | 卢浩义 | Vehicle power supply circuit as well as semiconductor protection control system of electric apparatus electronic equipments |
| CN201742082U (en) * | 2010-05-31 | 2011-02-09 | 高捷科技（亚洲）有限公司 | Overdischarge protection device for storage battery |
| CN203186118U (en) * | 2013-03-18 | 2013-09-11 | 力帆实业(集团)股份有限公司 | Automatic power-off controller |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101546918B1 (en) * | 2011-01-24 | 2015-08-24 | 주식회사 엘지화학 | Apparatus and method for controlling emergency charging in electric vehicle and battery pack equipped with it |
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2013
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2794005Y (en) * | 2005-04-28 | 2006-07-05 | 美固电子(深圳)有限公司 | Under-voltage protecting circuit for battery |
| CN201029202Y (en) * | 2006-12-07 | 2008-02-27 | 徐志强 | Vehicle accumulator protector |
| CN101277009A (en) * | 2007-03-30 | 2008-10-01 | 卢浩义 | Vehicle power supply circuit as well as semiconductor protection control system of electric apparatus electronic equipments |
| CN201742082U (en) * | 2010-05-31 | 2011-02-09 | 高捷科技（亚洲）有限公司 | Overdischarge protection device for storage battery |
| CN203186118U (en) * | 2013-03-18 | 2013-09-11 | 力帆实业(集团)股份有限公司 | Automatic power-off controller |
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