CN103144542A - Automatic power interruption control system - Google Patents
Automatic power interruption control system Download PDFInfo
- Publication number
- CN103144542A CN103144542A CN2013100861326A CN201310086132A CN103144542A CN 103144542 A CN103144542 A CN 103144542A CN 2013100861326 A CN2013100861326 A CN 2013100861326A CN 201310086132 A CN201310086132 A CN 201310086132A CN 103144542 A CN103144542 A CN 103144542A
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- power
- input interface
- microcontroller
- control system
- mos switch
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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 invention discloses an automatic power interruption control system, which comprises a power input interface and a power output interface. The automatic power interruption control system is characterized in that: a MOS (Metal Oxide Semiconductor) switch is connected in series between the power input interface and the power output interface, the switching control end of the MOS switch is connected with the output pin of a microcontroller, one input pin of the microcontroller is connected with a diagnostic apparatus instruction input interface, the microcontroller controls the switching state of the MOS switch according to a system state instruction inputted via the diagnostic apparatus instruction input interface, and thereby the connection and disconnection between the power input interface and the power output interface are controlled. The automatic power interruption control system has the outstanding advantage that the automatic power interruption control system can be used in intelligent automobile power management, and can intelligently manage automobile power by detecting the system state of an automobile in real time and controlling the on-off of a power supply circuit, thus preventing the failure of the starting of the automobile as the result of long-time discharge and enhancing the safety and stability of a power supply 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, thereby improves safety, stability, the traveling comfort and recreational of automobile.Power supply is a major part of automobile, and usually adopting storage battery is the automobile power supply, when automobile is in storage and transport process or long-term static condition, needs to interrupt the power supply supply, thereby avoids battery loss and prolonging service life of battery.
Traditional power management mainly adopts and manually removes the battery-end wire harness or remove the power operations such as power supply plug-in unit, intelligent degree is low, operating difficulties, easily forget, if automobile is standing for a long time, storage battery meeting over discharge is in case power shortage is serious, automobile just can not normally start, and causes very big inconvenience to the car owner.
Summary of the invention
In order to address the above problem, the present invention proposes a kind of automatic power off control system, is used for automobile storage and transport process or long-term storage battery power supply management when standing, avoids reducing overdischarge and causing battery damage because long-term overdischarge causes automobile not start.
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: be serially connected with the MOS switch between described power input interface and power output interface, the switch control end of described MOS switch is connected with the output pin of microcontroller, an input pin of described microcontroller is connected on diagnostic equipment instruction input interface, microcontroller is controlled the on off state of MOS switch according to the system mode instruction of diagnostic equipment instruction input interface input, thereby realizes the break-make control between power input interface and power output interface.
As preferably, described power output interface is provided with power output interface A and the output of power output interface B two-way, be connected in series a MOS switch between power input interface and power output interface A, be connected in series the 2nd MOS switch between power input interface and power output interface B, the switch control end 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 on grounding ports.
Further, be serially connected with power supply counnter attack diode between the input end of described power input interface and Voltage stabilizing module.
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.
Be provided with current feedback terminal on described MOS switch, 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 the automobile power source intelligent management, power input interface is connected with the mouth of automotive battery, be the power devices such as automotive meter instruments and meters by power output interface, the instruction of diagnostic equipment instruction input interface input automobile mode of operation, when automobile long-term when standing, system is in dormant state, microprocessor control MOS switch disconnects, the controlled plants such as automotive meter instruments and meters are in off-position, the microcontroller quiescent dissipation drops to enough low, thereby avoids the storage battery over discharge.In case microcontroller detects external forced when waking instruction up, automobile is in normal working, microprocessor control MOS switch conduction, the controlled plants such as automotive meter instruments and meters power on and recover normal operation, by controlling to the real-time detection of automotive system state with to the break-make of supply line, realized the intelligent management to automobile power source, avoided having improved the safety and stability of electric power system because long-term overdischarge causes automobile not start.
Description of drawings
Fig. 1 is schematic block circuit diagram of the present invention.
The specific embodiment
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 the output of power output interface B two-way, be connected in series a MOS switch 3 between power input interface 1 and power output interface A, be connected in series the 2nd MOS switch 3 ' between power input interface 1 and power output interface B, the switch control end 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 is controlled a MOS switch 3 or/and the on off state of the 2nd MOS switch 3 ' according to the system mode instruction of diagnostic equipment instruction input interface 5 inputs, thereby realize the break-make control between power input interface 1 and power output interface 2.
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 on grounding ports 7, thereby for microcontroller 4 provides working power, reverse for fear of electric current, be serially connected with power supply counnter attack diode 8 between the input end of described power input interface 1 and Voltage stabilizing module 6.
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, be provided with current feedback terminal on a described MOS switch 3 and the 2nd MOS switch 3 ', each current feedback terminal is connected with a current sense pin of described microcontroller 4, whether microcontroller 4 can decision-making system power normal according to the current feedback situation of each MOS switch.
With this system applies 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 give respectively EMS(Engine Manegement System engine management system), BCM(Body ControlModule Body control module), sound equipment, instrument, skylight, room light etc. need the system of post power supply that power supply is provided.
Principle of work of the present invention is:
When vehicle normally used, microcontroller 4 was controlled a MOS switch 3 and the 2nd MOS switch 3 ' conducting, and automotive battery needs the system of post power supply that power supply is provided to EMS, BCM, sound equipment, instrument, skylight, room light etc.
When vehicle is in static condition, system hibernates, 4 dormancy instructions that external device can be detected by diagnostic equipment instruction input interface 5 of microcontroller, automatically enter the deep sleep state, 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 dissipations drop to enough low, thereby it is minimum that the car load power consumption is dropped to, and reduces battery discharging.
When again starting vehicle, 4 pressures that external device can be detected by diagnostic equipment instruction input interface 5 of microcontroller wake instruction up, again control the MOS switch conduction, thereby power on automatically for the in check systems of institute such as EMS, BCM, sound equipment, instrument, skylight, room light, so its intrinsic function of these system's immediate recoveries.
By adopting system mode instruction to detect and to the automatic control of MOS switch, having realized automation, the intelligent management of automobile power source, avoid having improved the safety and stability of electric power system because long-term overdischarge causes automobile not start.
Claims (6)
1. automatic power off control system, comprise power input interface (1) and power output interface (2), it is characterized in that: be serially connected with MOS switch (3/3 ') between described power input interface (1) and power output interface (2), the switch control end 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), microcontroller (4) is controlled the on off state of MOS switch (3/3 ') according to the system mode instruction of diagnostic equipment instruction input interface (5) input, thereby realize the break-make control between power input interface (1) and power output interface (2).
2. a kind of automatic power off control system according to claim 1, it is characterized in that: described power output interface (2) is provided with power output interface A and the output of power output interface B two-way, be connected in series a MOS switch (3) between power input interface (1) and power output interface A, be connected in series the 2nd MOS switch (3 ') between power input interface (1) and power output interface B, a described MOS switch (3) connects one to one with the switch control end of the 2nd MOS switch (3 ') and two output pins of described microcontroller (4).
3. a kind of automatic power off control system according to claim 1 and 2, 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 on grounding ports (7).
4. a kind of automatic power off control system according to claim 3, is characterized in that: be serially connected with power supply counnter attack diode (8) between the input end of described power input interface (1) and Voltage stabilizing module (6).
5. a kind of automatic power off control system according to claim 1 and 2, it is characterized in that: described microcontroller (4) is provided with clock pins CLK, and this clock pins CLK is connected with clock circuit (9).
6. a kind of automatic power off control system according to claim 1, it is characterized in that: be provided with current feedback terminal on described MOS switch (3/3 '), each current feedback terminal is connected with a current sense pin of described microcontroller (4).
Priority Applications (1)
| 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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| CN201310086132.6A CN103144542B (en) | 2013-03-18 | 2013-03-18 | A kind of automatic power off control system |
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| CN103144542A true CN103144542A (en) | 2013-06-12 |
| CN103144542B 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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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104597897A (en) * | 2014-10-31 | 2015-05-06 | 惠州市华阳多媒体电子有限公司 | OBD device and method for automatically starting and closing OBD device |
| CN105353681A (en) * | 2015-11-20 | 2016-02-24 | 云南名网卫星通讯运用股份有限公司 | Method waking up OBD equipment through voltage fluctuation |
| CN110147045A (en) * | 2019-05-07 | 2019-08-20 | 青岛海尔空调器有限总公司 | A kind of control method of power supply unit, control device and power supply unit |
| CN110733347A (en) * | 2018-07-18 | 2020-01-31 | 蔚来汽车有限公司 | Low-power consumption sleep control method and control system for vehicle |
| CN111720226A (en) * | 2019-09-06 | 2020-09-29 | 株式会社电装 | Engine control device and control method thereof |
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2013
- 2013-03-18 CN CN201310086132.6A patent/CN103144542B/en not_active Expired - Fee Related
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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 |
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| 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 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104597897A (en) * | 2014-10-31 | 2015-05-06 | 惠州市华阳多媒体电子有限公司 | OBD device and method for automatically starting and closing OBD device |
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| CN105353681A (en) * | 2015-11-20 | 2016-02-24 | 云南名网卫星通讯运用股份有限公司 | Method waking up OBD equipment through voltage fluctuation |
| CN110733347A (en) * | 2018-07-18 | 2020-01-31 | 蔚来汽车有限公司 | Low-power consumption sleep control method and control system for vehicle |
| 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 |
| CN110147045A (en) * | 2019-05-07 | 2019-08-20 | 青岛海尔空调器有限总公司 | A kind of control method of power supply unit, control device and power supply unit |
| CN111720226A (en) * | 2019-09-06 | 2020-09-29 | 株式会社电装 | Engine control device and control method thereof |
| 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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| Publication number | Publication date |
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| CN103144542B (en) | 2016-01-06 |
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Granted publication date: 20160106 |