CN110395202A - Power conversion module with bidirectional power supply function - Google Patents
Power conversion module with bidirectional power supply function Download PDFInfo
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- CN110395202A CN110395202A CN201910750948.1A CN201910750948A CN110395202A CN 110395202 A CN110395202 A CN 110395202A CN 201910750948 A CN201910750948 A CN 201910750948A CN 110395202 A CN110395202 A CN 110395202A
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- vehicular battery
- mobile unit
- controller
- power
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 44
- 230000002457 bidirectional effect Effects 0.000 title claims abstract description 29
- 230000005611 electricity Effects 0.000 claims description 18
- 235000019506 cigar Nutrition 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 3
- 238000013519 translation Methods 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims 2
- 230000000977 initiatory effect Effects 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 description 36
- 239000000047 product Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 101000941170 Homo sapiens U6 snRNA phosphodiesterase 1 Proteins 0.000 description 1
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- 230000002159 abnormal effect Effects 0.000 description 1
- 230000037237 body shape Effects 0.000 description 1
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- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/03—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for
- B60R16/033—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for characterised by the use of electrical cells or batteries
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
Abstract
This application discloses a kind of power conversion modules with bidirectional power supply function, are related to electronics field.The power conversion module with Vehicular battery and mobile unit for connecting, comprising: external interface and controller.External interface is used to connect with external devices.Controller with the external interface, Vehicular battery and mobile unit for connecting, for being converted into internal control signal according to external signal, it is configured to be powered from the Vehicular battery to the external equipment, it is configured in the Vehicular battery power shortage, is powered from the external equipment to the Vehicular battery and/or the mobile unit.By above structure, so that bidirectional power supply may be implemented in the application, power to solve the problem of to meet an urgent need in vehicle power shortage by external power supply to vehicle.
Description
Technical field
This application involves electronics fields, more particularly to a kind of power conversion module with bidirectional power supply function.
Background technique
With people increasing using mobile terminal such as mobile phone, tablet computer, PAD etc..More and more vehicles such as automobile,
Motorcycle, electric bicycle etc. are equipped with the equipment that can be charged to these mobile terminals, such as vehicle-mounted USB charger.These vehicles
Carrying USB charger has unidirectional charge function, i.e., supplements the electric energy in Vehicular battery to intelligent terminal.
But with the raising of Cartronic degree, vehicle is equipped with more and more electronic equipments, such as electrical steering
Lock, electric trunk etc..These equipment, which require electric energy, to be started, therefore when vehicle power shortage, are not just available these and set
It is standby.This will bring puzzlement to user.
For example, be equipped with mechanical lock in the boot of previous automobile, in the car when, user is interior by operation
Mechanical bracing wire pull the unlocking mechanism of the mechanical lock in boot to open boot.Alternatively, the use outside vehicle, Yong Hutong
It crosses with the mechanical key of vehicle outfit and opens boot lockset.With the raising of automotive circuit diagram degree, mechanical lock is by electronic lock
Substitution.Electronic switch is instead of mechanical bracing wire in the car.On boot outside vehicle, also by electronic switch instead of mechanical lock.
When vehicle power shortage, even if pressing electronic switch, boot can not be also opened, causes user that can not take out and is placed in boot
Article.If the battery of vehicle is placed on car engine cabin, user can open car door by mechanical key, into vehicle,
Engine cabin is opened by interior bracing wire.Boot can could be opened by replacement battery or external power supply later.Ordinary circumstance
Under, replacement battery is to need to wait for a period of time, and is caused considerable trouble.There are also a kind of situation, the battery of some vehicles is located in
In boot, and lock is opened without mechanical key on boot.At this time after vehicle power shortage, it is desirable to which opening boot, that is even more difficulty.
Same thing may occur at motorcycle etc. two and take turns on the vehicles.When Vehicular battery is located in cushion case or by certain
One piece of appearance member is covered and is blocked, and this cushion case or appearance member are only equipped with electronic lock, the mode opened without machinery.That
After this vehicle is equally faced with Vehicular battery power shortage, the case where cushion or appearance member can not be opened, so as to cause that cannot replace
Battery.
By way of further example, some carts for being equipped with electronic steering lock.The major function of electronic steering lock is to handlebar
Locking makes front-wheel and vehicle body shape at an angle.When electronic steering lock is under locked state, it is unable to straight line and pushes vehicle as required
Turn to, to play antitheft effect.But in the case where vehicle power shortage, when needing to sue and labour to vehicle, due to vehicle
Power shortage causes electronic steering lock that cannot unlock, and so as to cause cannot normally push vehicle, thus produces passiveness to suing and labouring
It influences.
In addition, some electronic steering locks are also integrated with the function of opening cushion case, i.e., only when electronic steering lock unlock
Situation could pass through and operate the lock, and then pull internal bracing wire, realize and open cushion case.And the often battery position of such vehicle
In cushion case lower section or only open cushion case after could take out battery.And cushion case is not equipped with and can use mechanical key from external
The tradition machinery lock that spoon is opened.Therefore cushion case could can only be opened by electronic steering lock is first started.
Therefore, it needs to develop a kind of power conversion module, when being able to solve vehicle power shortage, what electronic equipment was not available
Problem.
Summary of the invention
Aiming to overcome that the above problem or at least being partially solved or extenuate for the application solves the above problems.
This application provides a kind of power conversion module with bidirectional power supply function, for Vehicular battery and vehicle-mounted set
Standby connection, comprising:
External interface is used to connect with external devices；With
Controller, for being connect with the external interface, Vehicular battery and mobile unit, for being converted according to external signal
For internal control signal, it is configured to be powered from the Vehicular battery to the external equipment, is configured in the Vehicular battery
In the case of power shortage, powered from the external equipment to the Vehicular battery and/or the mobile unit.
Optionally, the controller includes:
Power module is powered for supply voltage to be converted to the operating voltage of the controller for the controller；
Vehicle battery voltage measuring circuit, for obtaining the voltage signal of the Vehicular battery；
External equipment identification circuit, for the presetting reference voltage of the controller and the electricity of the external equipment
Pressure, and judge that the property of the external equipment is to belong to electricity consumption type equipment or power-type equipment accordingly；
Main control MCU, for according to the vehicle battery voltage measuring circuit detected and external equipment identification electricity
The information on road, and it is converted into internal control instruction accordingly；
Pressure regulation, current limliting module, for the main control MCU communication connection, be configured to be referred to according to the control of the main control MCU
It enables the voltage pressure regulation of Vehicular battery into voltage needed for external equipment, powers, be configured to according to institute for the external equipment
The control instruction of main control MCU is stated by the voltage pressure regulation of external equipment into electricity needed for the mobile unit and/or the Vehicular battery
Pressure is that the mobile unit and/or the Vehicular battery are powered, is configured to limitation and flows through external interface and power supply conversion
The current value of module avoids overloading the damage caused to the power conversion module and the accident that may cause；
Supplying power for outside circuit is controlled by it for connecting and connecing with the main control MCU, is also used to and the pressure regulation, current limliting
The connection with the Vehicular battery is realized in module connection under main control MCU control, so that the Vehicular battery gives the tune
Pressure, current limliting module for power supply, and then realize that the Vehicular battery is powered to the external equipment；With
Internal power switching circuit, is controlled by it for connecting and connecing with the main control MCU, be also used to the pressure regulation,
The connection of current limliting module is realized under main control MCU control and is connect with the mobile unit, so that the external equipment is to described
Pressure regulation, current limliting module for power supply, and then realize that the external equipment is powered to the mobile unit.
Optionally, the power conversion module further includes switching switch, for switching the confession of the power conversion module
Circuit, to power for the mobile unit or the Vehicular battery, or it is same to the mobile unit and the Vehicular battery
When power, switching switch is inputted according to signal to be changed,
The controller is set to be configured to be powered by the external equipment to the mobile unit；Or
The controller is set to be configured to be powered by the external equipment to the on-vehicle battery, alternatively, the controller is matched
It is set to from the external equipment to the Vehicular battery and the mobile unit while powering.
Optionally, it is configured to from the external equipment to the Vehicular battery and/or described vehicle-mounted sets in the controller
When available electricity,
Within a preset time, the controller is only configured to only be powered to the mobile unit from the external equipment；
After reaching the preset time, the controller is configured to be supplied from the external equipment to the Vehicular battery
Electricity, alternatively, the controller is configured to from the external equipment to the Vehicular battery and the mobile unit while powering.
Optionally, it is configured to from the external equipment to the Vehicular battery and/or described vehicle-mounted sets in the controller
When available electricity,
The controller is configured to preferentially power to the mobile unit, after the mobile unit must electrically activate, to institute
It states controller and sends feedback signal, the controller responds the feedback signal, is configured to from the external equipment to the vehicle
The power supply of battery.
Optionally, the external interface quantity is multiple, includes at least two external interfaces, wherein an external interface configures
At being only capable of powering to the mobile unit, another external interface is configured to be only capable of to the Vehicular battery and/or described vehicle-mounted set
Available electricity.
Optionally, LED light is disposed with around the external interface, the LED light is connected with the controller and passes through it
Control, for prompting the working condition of the external interface.
Optionally, LED light circle is disposed with around the external interface, the LED light circle is connected and leads to the controller
Its control is crossed, for prompting the working condition of the external interface.
Optionally, the power conversion module further includes buzzer, and the buzzer is connected and leads to the controller
Its control is crossed, for prompting the working condition of the external interface.
Optionally, the external interface is that connector is used in USB interface, cigar lighter, DC translation interface or electric appliance connection.
The power conversion module with bidirectional power supply function of the application, is connect by external interface with external equipment, is led to
It crosses controller to connect with the external interface, Vehicular battery and mobile unit, controller can be configured to by the Vehicular battery
It powers, is configured in the Vehicular battery power shortage to the external equipment, from the external equipment to the vehicle
Battery and/or mobile unit power supply.As it can be seen that the application can be realized the function of bidirectional power supply, i.e. Vehicular battery/vehicle-mounted is set
Standby ← → external equipment bidirectional power supply.When Vehicular battery power shortage, the electric energy of external equipment can be utilized, as answering urgent telegram
Source to Vehicular battery/mobile unit power supply solves the problems, such as that the equipment such as cushion case, electronic steering lock can not be opened.Therefore, originally
Bidirectional power supply may be implemented in application, to solve in vehicle power shortage, is met an urgent need by external power supply and is asked to what vehicle was powered
Topic.
According to the accompanying drawings to the detailed description of the specific embodiment of the application, those skilled in the art will be more
Above-mentioned and other purposes, the advantages and features of the application are illustrated.
Detailed description of the invention
Some specific embodiments of the application are described in detail by way of example and not limitation with reference to the accompanying drawings hereinafter.
Identical appended drawing reference denotes same or similar part or part in attached drawing.It should be appreciated by those skilled in the art that these
What attached drawing was not necessarily drawn to scale.In attached drawing:
Fig. 1 is the schematic structure according to the power conversion module with bidirectional power supply function of the application one embodiment
Figure；
Fig. 2 is the schematic elevational view of one embodiment of external interface shown in Fig. 1；
Fig. 3 is the schematic elevational view of another embodiment of external interface shown in Fig. 1；
Fig. 4 is the schematic circuit of power module shown in Fig. 1；
Fig. 5 is that main control MCU shown in FIG. 1, vehicle battery voltage measuring circuit and external equipment identification circuit are schematically electric
Lu Tu；
Fig. 6 is the schematic circuit of pressure regulation shown in Fig. 1, current limliting module；
Fig. 7 is the schematic circuit of supplying power for outside circuit shown in Fig. 1；
Fig. 8 is the schematic circuit of internal power switching circuit shown in Fig. 1；
Fig. 9 is the schematic flow according to the power conversion module with bidirectional power supply function of the application one embodiment
Figure；
Figure 10 is according to the schematic of the power conversion module with bidirectional power supply function of the application another embodiment
Flow chart；
Figure 11 is according to the schematic of the power conversion module with bidirectional power supply function of the application another embodiment
Flow chart；
Figure 12 is according to the schematic of the power conversion module with bidirectional power supply function of the application another embodiment
Flow chart.
Each symbol indicates that meaning is as follows in figure:
100 power conversion modules with bidirectional power supply function,
101 external interfaces, 102 LED light, 103 LED light circles, 104 switching switches,
105 controllers,
I power module,
II main control MCU,
III vehicle battery voltage measuring circuit,
IV external equipment identification circuit,
V pressure regulation, current limliting module,
VI supplying power for outside circuit,
Power switching circuit in VII pair,
106 Vehicular batteries,
107 mobile units,
108 buzzers.
Specific embodiment
Fig. 1 is the schematic structure according to the power conversion module with bidirectional power supply function of the application one embodiment
Figure.Fig. 2 is the schematic elevational view of one embodiment of external interface shown in Fig. 1.Fig. 3 is the another of external interface shown in Fig. 1
The schematic elevational view of a embodiment.
As shown in Figure 1, referring also to Fig. 2-Fig. 3, the power supply conversion with bidirectional power supply function that this application provides a kind of
Module 100, for connecting with Vehicular battery 106 and mobile unit 107, generality may include: external interface 101 and controller
105.External interface 101 is used to connect with external devices.Controller 105 is used for and the external interface 101, Vehicular battery 106
And mobile unit 107 connects, and for being converted into internal control signal according to external signal, is configured to by the Vehicular battery 106
It powers, is configured in 106 power shortage of Vehicular battery to the external equipment, from the external equipment to the vehicle
Battery 106 and/or the mobile unit 107 are powered.
The power conversion module 100 with bidirectional power supply function of the application is connected by external interface 101 and external equipment
It connects, is connect by controller 105 with the external interface 101, Vehicular battery 106 and mobile unit 107, controller 105 can
It is configured to be powered from the Vehicular battery 106 to the external equipment, be configured in the 106 power shortage situation of Vehicular battery
Under, it is powered from the external equipment to the Vehicular battery 106 and/or the mobile unit 107.As it can be seen that the application can be real
The function of existing bidirectional power supply, i.e. 106/ 107 ← → external equipment bidirectional power supply of mobile unit of Vehicular battery.When Vehicular battery 106
When power shortage, the electric energy of external equipment can be utilized, as emergency power supply, is powered to 106/ mobile unit 107 of Vehicular battery, solution
The problem of equipment such as cushion case, electronic steering lock can not certainly be opened.Therefore, bidirectional power supply may be implemented in the application, to solve
In vehicle power shortage, the problem of emergency by external power supply to vehicle power supply.
It should be noted that 106/ 107 ← → external equipment bidirectional power supply of mobile unit of Vehicular battery, wherein do not wrap
Mobile unit 107 is included to power to external equipment.
More specifically, the application can also include harness, and pass through harness and Vehicular battery 106 and vehicle mounted electrical apparatus equipment phase
Connection.
More specifically, as shown in Fig. 2, be disposed with LED light 102 around the external interface 101 in the present embodiment, it is described
LED light 102 is connected with the controller 105 and is controlled by it, for prompting the working condition of the external interface 101.
More specifically, as shown in figure 3, being disposed with LED light circle 103, institute around the external interface 101 in the present embodiment
It states LED light circle 103 to be connected with the controller 105 and control by it, for prompting the work shape of the external interface 101
State.
More specifically, external interface 101 can be arranged in the different location of vehicle.Preferred vehicle instrument desk or its around,
Again or in the storage box of front part of vehicle.It is also possible to other any regions convenient for operation.
More specifically, external interface 101 has waterproof construction protection (than rubber sleeve as shown), the entrance of water is prevented.
More specifically, as shown in Figure 1, the power conversion module further includes buzzer 108, described in the present embodiment
Buzzer 108 is connected with the controller 105 and is controlled by it, for prompting the working condition of the external interface 101.It is excellent
Selection of land, buzzer 108 can integrate in the inside of external interface 101, can also be integrated in controller 105, can also arrange
Elsewhere in vehicle.
More specifically, mobile unit 107 can be one or multiple.Such as electronic steering lock, electric trunk etc..
Need: the preferred LED light of the application and buzzer 108 are prompted as working condition.It can certainly
It is the prompt of other forms, such as separate display screens, character or lights of vehicle on vehicular meter, loudspeaker etc..
More specifically, the preferred external interface 101 of the application is interface of the USB interface but it is also possible to be other forms, such as
Cigar lighter, DC translation interface or electric appliance connection connector etc..
Fig. 4 is the schematic circuit of power module shown in Fig. 1.Fig. 5 is main control MCU shown in FIG. 1, vehicle battery voltage
Measuring circuit and external equipment identification circuit schematic circuit.Fig. 6 is the illustrative circuitry of pressure regulation shown in Fig. 1, current limliting module
Figure.Fig. 7 is the schematic circuit of supplying power for outside circuit shown in Fig. 1.
Fig. 8 is the schematic circuit of internal power switching circuit shown in Fig. 1.
As shown in Figure 1, the controller 105 includes: power module I, 106 tension measuring circuit III of Vehicular battery, outside
Equipment identification circuit IV, main control MCU II, pressure regulation current limliting module V, supplying power for outside circuit VI and internal power switching circuit VII.With
Upper several modules and circuit can be individual module, be also possible to two or more module collections in the same chip.It is real
It can be determined according to specific type selecting in the application of border.
Term definition:
Vehicle: passenger car, truck, motorcycle, the vehicles such as electric vehicle.
External equipment: the external electric equipment products being connect with charging interface, such as mobile phone, tablet computer, charger baby etc..(with
Lower abbreviation " peripheral hardware ")
Vehicle battery voltage: V-B, Voltage-Battery
Peripheral hardware voltage: V-E, Voltage-External Device
Peripheral hardware supplying power for outside voltage: V-E-O, Voltage-External Device-Output
Peripheral hardware reverse charging voltage: V-E-C, Voltage-External Device-Charge
The minimum operating voltage of the application: V-U-Min, Voltage-USB Charge-Minimum Working Voltage
Vehicular battery for start electric motor starting voltage: V-B-S, Voltage-Battery Minimum-Starting
Voltage
Vehicular battery externally exports blanking voltage: V-B-O-C, Voltage-Battery-Output-Cut-Off
Voltage
The charging voltage of Vehicular battery: V-B-C, Voltage-Battery Charging Voltage
The minimum operating voltage of mobile unit: V-I-Min, Voltage-Internal Device-Minimum Working
Voltage
Forward direction power supply: refer to and powered from Vehicular battery to peripheral hardware.For example vehicle charges the phone.
Reverse power supply: refer to and powered from peripheral hardware to mobile unit or Vehicular battery.For example charger baby is powered to vehicle.
Above each parameter, can adjust according to the specific situation of different vehicle.
As shown in figure 4, power module I is used to be converted to supply voltage the work of the controller 105 in the present embodiment
Voltage is powered for the controller 105.More specifically, power module I will be power supply, that is, Vehicular battery of the application power supply
106 or USB interface input power be converted into main control MCU II needs operating voltage, for main control MCU II power.Power supply shown in Fig. 4
Module I circuit is connected with No. 1 pin VCC of MCU shown in Fig. 5.Phase with external equipment identification circuit IV shown in fig. 5 simultaneously
Even.
As shown in figure 5, main control MCU II is used for according to the vehicle battery voltage measurement electricity detected in the present embodiment
The information of road III and the external equipment identification circuit IV, and it is converted into internal control instruction accordingly.Specifically, main control MCU II
With vehicle battery voltage measuring circuit III, external equipment identification circuit IV, pressure regulation, current limliting module V, supplying power for outside circuit VI and
Internal power switching circuit VII connects.Main control MCU II detects vehicle battery voltage measuring circuit III and external equipment identification circuit
IV information establishes communication connection with pressure regulation, current limliting module V, after internal logic operation, controls pressure regulation, current limliting module
V, the work of supplying power for outside circuit VI, internal power switching circuit VII.In addition, main control MCU II also controls external interface 101
LED light 102/LED aperture 103 (No. 5 RC5 interface, No. 6 RC4 interface) and buzzer 108 (are not indicated, but can be in Fig. 5
Pass through No. 4 RA3 Interface Controller) work.
As shown in figure 5, vehicle battery voltage measuring circuit III is for obtaining the Vehicular battery 106 in the present embodiment
Voltage signal.Specifically, main control MCU II obtains the voltage analog signal of Vehicular battery 106 by No. 7 RC3 pins.Passing through
After MCU internal arithmetic, the digital signal V-B that MCU obtains Vehicular battery 106 participates in MCU's as an input quantity to MCU
Operation control.
As shown in figure 5, external equipment identification circuit IV is presetting for the controller 105 in the present embodiment
The voltage V-E-O of reference voltage and the external equipment, and judge that the property of the external equipment is to belong to electricity consumption type to set accordingly
Standby or power-type equipment.More specifically, the output voltage of power module I and IV phase of external equipment identification circuit in Fig. 5 in Fig. 4
It connects, in Fig. 5, there is a determining voltage (i.e. presetting reference voltage), this voltage at No. 8 RC2 pins of main control MCU II
It is preset in inside main control MCU II as first voltage.When thering is external equipment to be inserted into USB interface, that is to say, that in Fig. 5
An equipment is connected at the VUSB node of middle external equipment identification circuit IV, at this time the voltage at the pin of main control MCU II No. 8
It will change, i.e. second voltage.Main control MCU II is by comparing first voltage and second voltage, after internal arithmetic, just
The property that can judge external equipment is electricity consumption type or power-type.
As shown in fig. 6, pressure regulation, current limliting module V are made of pressure regulation chip and peripheral circuit in the present embodiment.With master control
MCU II is by SCL/SDA/INT/EN connection, by IIC protocol.
Pressure regulation, current limliting module V are configured to the voltage tune of Vehicular battery 106 according to the control instruction of the main control MCU II
Voltage needed for being pressed into external equipment is powered for the external equipment.Specifically, pressure regulation, the VBAT point in current limliting module V, with
Supplying power for outside circuit VI in Fig. 7 is connected, when the main control MCU II in Fig. 5 is by controlling its No. 9 RC1 pins, so that VBAT and vehicle
When battery 106 is connected (the 12V node in Fig. 7 is exactly Vehicular battery 106), pressure regulation, current limliting module V are i.e. by vehicle electrical
The voltage pressure regulation in pond 106 can both power at voltage VUSB needed for peripheral hardware to peripheral hardware.
Pressure regulation, current limliting module V are configured to the voltage tune of external equipment according to the control instruction of the main control MCU II
Voltage needed for being pressed into the mobile unit 107 and/or the Vehicular battery 106 is the mobile unit 107 and/or the vehicle
Battery 106 is powered.Specifically, the VBAT point in Fig. 6 is connected with the internal power switching circuit VII in Fig. 8 simultaneously.General feelings
Under condition, as shown in Figure 1, Vehicular battery 106 is connected with mobile unit 107, mobile unit 107 is powered by Vehicular battery 106.And work as
106 power shortage of Vehicular battery, when cannot power to mobile unit 107, the main control MCU II in Fig. 5 is drawn by controlling its No. 12 RA1
Foot, control VBAT connect with mobile unit 107, are powered by VBAT to mobile unit 107, i.e., by being connected at USB interface
Peripheral hardware supplies mobile unit 107 by pressure regulation, the pressure regulation of current limliting module V, electric energy.
Pressure regulation, current limliting module V are configured to the current value that limitation flows through external interface 101 and the power conversion module,
It avoids overloading the damage caused to the power conversion module and the accident that may cause.Specifically, pressure regulation, current limliting module V
Specific pressure regulation working condition, determined by main control MCU II.This pressure regulation, current limliting module V chip be integrated with current-limiting protection simultaneously
Function, limitation flow through USB interface and the current value of the application, the damage to the application for avoiding overload from causing and may cause
Accident.Such as when external equipment is when giving Vehicular charging, user starts vehicle, and the high current for starting motor can burn out this production
Product, it is also possible to since fever causes vehicle incidents of spontaneous combustion.
As shown in fig. 7, supplying power for outside circuit VI with the main control MCU II for connecting and receiving its control in the present embodiment
System, is also used to connect with the pressure regulation, current limliting module V, realizes and the Vehicular battery 106 under the main control MCU II control
Connection so that the Vehicular battery 106 is powered to the pressure regulation, current limliting module V, and then realize that the Vehicular battery 106 is given
The external equipment power supply.Specifically, in Fig. 7 in the OUT1 and Fig. 5 of supplying power for outside circuit VI main control MCU II No. 9 RC1 pins
It is connected, receives the control from MCU.VBAT is connect with the VBAT in Fig. 6 in Fig. 7, when in Fig. 5 in II control figure 7 of main control MCU it is right
When the relay of outer power supply circuit VI is attracted, the connection of VBAT and Vehicular battery 106 are realized.Vehicular battery 106 to pressure regulation,
Current limliting module V is powered.
As shown in figure 8, internal power switching circuit VII is for connecting and receiving with the main control MCU II in the present embodiment
It is controlled, and is also used to connect with the pressure regulation, current limliting module V, and realization vehicle-mounted is set with described under the main control MCU II control
Standby 107 connection so that the external equipment is powered to the pressure regulation, current limliting module V, and then realizes the external equipment to institute
State the power supply of mobile unit 107.Specifically, 12 of the main control MCU II in the OUT2 and Fig. 5 of the internal power switching circuit VII of Fig. 8
Number RA1 pin is connected, and receives the control from main control MCU II.In VBAT and Fig. 6 in the internal power switching circuit VII of Fig. 8
VBAT connection.Vehicular battery 106 is powered to mobile unit 107 under normal circumstances.When II control figure 8 of main control MCU in Fig. 5 is right
When the relay of interior power switching circuit VII is attracted, the connection of VBAT and mobile unit 107 are realized, i.e., by VBAT to vehicle-mounted
Equipment 107 is powered.And peripheral hardware of the power supply of VBAT at USB interface is converted by pressure regulation, current limliting module V.
Inventor has found during realizing the application:
When vehicle is not used, the application is in a dormant state.The minimum work of 106 voltage of Vehicular battery and the application at this time
It compares as voltage, there is following two situation:
A) V-B >=V-U-Min.106 voltage of Vehicular battery is greater than the minimum operating voltage of the application.Indicate Vehicular battery
106 can power to the application, the application can be made to work.
B)V-B<V-U-Min.106 electric energy of Vehicular battery is insufficient to allow the application to work at this time.It needs by peripheral hardware to this Shen
Power supply please can just make the application work.And the power supply capacity of peripheral hardware is also classified into following 2 kinds of situations.
B.1V-E >=V-U-Min.Illustrate peripheral hardware be power-type equipment and peripheral hardware can supply voltage be greater than the application most
Low-work voltage.
B.2V-E<V-U-Min.Illustrate that peripheral hardware is electricity consumption type equipment or peripheral hardware is the power supply capacity of power-type equipment but peripheral hardware
Less than the minimum operating voltage of the application.
If it is above A situation or B.1 so after USB interface is connected to peripheral hardware, situation, the application are activated.If
The application is not activated, illustrates to have occurred B.2 situation, i.e. the serious power shortage of the Vehicular battery 106 and peripheral hardware connecting with USB can not yet
Sufficient electric energy is provided.
Fig. 9 is the schematic flow according to the power conversion module with bidirectional power supply function of the application one embodiment
Figure.Figure 10 is the schematic flow according to the power conversion module with bidirectional power supply function of the application another embodiment
Figure.Figure 11 is the schematic flow according to the power conversion module with bidirectional power supply function of the application another embodiment
Figure.Figure 12 is the schematic flow according to the power conversion module with bidirectional power supply function of the application another embodiment
Figure.
The application is activated, into after working condition.First determine whether the application there are the abnormal conditions such as overload.When logical
After crossing safety detection, the application detects the voltage of battery and peripheral hardware, and flow chart works as shown in Figure 9.When there is V-B < V-B-O-C
When, in order to protect the safe and smooth starting of vehicle launch function, need to stop supplying power for outside.And the voltage V- of Vehicular battery (106)
B will receive the influence of inside battery unstable factor or other mobile units and its voltage V-B fluctuated, in order to keep away
Exempt from the influence that this factor works normally the application, having time T1 is preset in the program of the application.When there is V-B < V-B-
When the case where O-C, the application starts timing T, when only working as T > T1, just stops the supplying power for outside of the application.
The primary and foremost purpose of the application is powered, is guaranteed urgent to mobile unit 107 as temporary emergency source of electrical power converter
In the case of mobile unit 107 normal work.Next is only the equipment as that can charge to Vehicular battery 106.
There is a kind of situation, when 106 serious power shortage of Vehicular battery, such as V-B < V-U-Min.At this time if the application will be outer
If power supply after pressure regulation to vehicle power (peripheral hardware reverse power supply voltage V-E-O > mobile unit minimum V-I-
Min), if the power supply line connects Vehicular battery 106 and mobile unit 107 simultaneously.Due to the serious power shortage of Vehicular battery 106,
Voltage V-E-O can be pulled down to vehicle battery voltage V-B by battery, if V-B at this time is less than the minimum operating voltage of vehicle-mounted peripheral hardware
V-I-Min will lead to even if peripheral hardware to vehicle reverse power supply, and mobile unit 107 still cannot work at once.Need to wait for vehicle
Battery 106 charged after a period of time, and V-B slowly rises, until mobile unit 107 could work after V-B >=V-I-Min.
And under normal circumstances, since peripheral hardware is mobile power source, such as charger baby, thus it can power supply capacity it is little, give Vehicular battery
106 charge power is than relatively limited, this will lead to after charging for a long time to Vehicular battery 106, and V-B is possible to be greater than
The minimum V-I-Min of mobile unit, mobile unit 107 could work normally.The longer waiting time affects this
It applies in emergency circumstances meeting an urgent need the using effect of product.
Therefore when peripheral hardware reverse power supply is to vehicle, it is necessary to supply to mobile unit 107 or to Vehicular battery 106
The control logic of electricity is preset.For this problem, the application has the preferred solution of following four.
Scheme one, more specifically, in the present embodiment ,-Fig. 3 referring to fig. 2, referring also to Figure 10, the power supply modulus of conversion
Block further includes switching switch 104, for switching the power supply circuit of the power conversion module, with for the mobile unit 107 or
The Vehicular battery 106 is powered, or is powered simultaneously to the mobile unit 107 and the Vehicular battery 106.The switching is opened
It closes 104 and is inputted according to signal and changed, the controller 105 is made to be configured to be supplied by the external equipment to the mobile unit 107
Electricity.Or the switching switch 104 inputs according to signal and changes, and is configured to the controller 105 by the external equipment to institute
On-vehicle battery power supply is stated, alternatively, the controller 105 is configured to from the external equipment to the Vehicular battery 106 and described
Mobile unit 107 is powered simultaneously.More specifically, the switching switch 104 can be with self-locking switching switch, it is also possible to not
It is switched with self-locking switching.For example, the switching switch 104 is to switch with self-locking switching, the switching switch 104 has bullet
Play state and down state.When the switching switch 104 is in and bounces state, the controller 105 is configured to by described outer
Portion's equipment is powered to the mobile unit 107.It is (self-locking when pressing and keep when the switching switch 104 is in down state
Down state), the controller 105 is configured to be powered by the external equipment to the on-vehicle battery, alternatively, the controller
105 are configured to from the external equipment to the Vehicular battery 106 and the mobile unit 107 while powering.
More specifically, as shown in Fig. 2-Fig. 3, it is preferable that be provided with switching switch 104 on USB interface panel.Pass through
Switch switch 104 to switch supply path, powers to mobile unit 107 or Vehicular battery 106, or supplied simultaneously to the two
Electricity.Certainly, other places for facilitating operation, such as vehicle control panel can also be arranged in switching switch 104.Default situations are
Peripheral hardware is powered to mobile unit 107, after operation switches switch 104, is switched to and is powered to Vehicular battery 106.In circuit connection
On, switching 104 signal of switch may be coupled to No. 13 RA0 pin of the main control MCU II in Fig. 5.When the main control MCU in Fig. 5
II when having detected switching signal, by controlling No. 12 RA1 pin so that in Fig. 8 internal power switching circuit VII relay
Device work, makes VBAT connect and power with mobile unit 107.No. 9 pin RC1 of main control MCU II be not defeated in Fig. 5 at this time
Out, the relay of supplying power for outside circuit VI does not work in Fig. 7, it is ensured that VBAT and Vehicular battery 106 disconnect.
After disconnecting this switching switch 104, the main control MCU II in Fig. 5 can't detect switching signal, the 9th controlled immediately
Number pin RC1 output, so that the relay in Fig. 7 supplying power for outside circuit VI works, makes VBAT and 106 connection of Vehicular battery, i.e.,
VBAT powers to Vehicular battery 106.
Scheme two is controlled by the time as shown in figure 11.In the present embodiment, it is configured in the controller 105 by described
When external equipment is powered to the Vehicular battery 106 and/or the mobile unit 107.In preset time T 1, the controller
105 are only configured to only be powered to the mobile unit 107 from the external equipment.It is described after reaching the preset time T 1
Controller 105 is configured to be powered from the external equipment to the Vehicular battery 106, alternatively, the controller 105 be configured to by
The external equipment is powered simultaneously to the Vehicular battery 106 and the mobile unit 107.Specifically, when the application reversely supplies
When electric, in initial time T1, the application only reverse power supply to mobile unit 107.Main control MCU II in Fig. 5 passes through
No. 12 RA1 pin is controlled, so that the relay in the internal power switching circuit VII of Fig. 8 works, makes VBAT and mobile unit 107
It connects and powers.No. 9 pin RC1 of the main control MCU II in Fig. 5 is not exported at this time, in Fig. 7 supplying power for outside circuit VI after
Electric appliance does not work, it is ensured that VBAT and Vehicular battery 106 disconnect, to guarantee the urgent use of mobile unit 107.Later, the application
It is switched to and powers to battery or to mobile unit 107 and battery while powering.No. 9 of the control of main control MCU II in Fig. 5 is drawn
Foot RC1 output, so that the relay in Fig. 7 supplying power for outside circuit VI works, makes VBAT and 106 connection of Vehicular battery, i.e. VBAT
It powers to Vehicular battery 106.
Scheme three is controlled by the feedback signal of mobile unit 107.As shown in figure 12, it is configured in the controller 105
When powering from the external equipment to the Vehicular battery 106 and/or the mobile unit 107.The controller 105 is configured to
It preferentially powers to the mobile unit 107, after the mobile unit 107 must electrically activate, Xiang Suoshu controller 105 sends feedback
Signal, the controller 105 respond the feedback signal, are configured to be powered from the external equipment to the Vehicular battery 106.
The application gives mobile unit 107 to power first, after mobile unit 107 starts, when meeting preset condition in advance,
For example boot has already turned on or electronic steering lock has already turned on or user presses a particular switch on mobile unit 107
Deng.Mobile unit 107 sends feedback signal to the application, and the application receives the path of control reverse power supply after signal.Such as vehicle
Load equipment 107 has to be connect with No. 13 RA0 pin of the main control MCU II in Fig. 5 all the way.When the main control MCU II in Fig. 5 detects not
To when signal input, by controlling No. 12 RA1 pin, so that the relay of internal power switching circuit VII works in Fig. 8, make
VBAT connect and powers with mobile unit 107.No. 9 pin RC1 of main control MCU II is not exported in Fig. 5 at this time, right in Fig. 7
The relay of outer power supply circuit VI does not work, it is ensured that VBAT and Vehicular battery 106 disconnect.When the main control MCU II in Fig. 5 detects
After the input signal of mobile unit 107, No. 9 pin RC1 output controlled immediately, so that in Fig. 7 supplying power for outside circuit VI
Relay work, makes VBAT and 106 connection of Vehicular battery, i.e. VBAT powers to Vehicular battery 106.
Scheme four is controlled by different external interfaces 101.Referring to Fig. 1, in the present embodiment, 101 quantity of external interface
Be it is multiple, two external interfaces 101 are included at least, wherein an external interface 101 is configured to be only capable of to supply to the mobile unit 107
Electricity, another external interface 101 are configured to be only capable of powering to the Vehicular battery 106 and/or the mobile unit 107.This implementation
In example, external interface 101 is USB interface.
Such as when power-type peripheral hardware insertion USB 1, the application work, peripheral hardware can be reversed power supply, but not have due to USB1 mouthfuls
Have and connect with Vehicular battery 106, but have connection with mobile unit 107, so can only be given when power-type peripheral hardware is inserted into USB 1
Mobile unit 107 is powered.Similarly, when power-type peripheral hardware insertion USB 2, the application work, peripheral hardware can be reversed power supply, but due to
USB2 mouthfuls only connect with Vehicular battery 106, so can only power to Vehicular battery 106 when power-type peripheral hardware is inserted into USB 1.
More specifically, USB interface can be it is multiple, wherein a USB interface can have unidirectional power supply (vehicle → peripheral hardware,
Peripheral hardware → vehicle) or bidirectional power supply (vehicle ← → peripheral hardware) function.
The voltage that USB interface externally exports can be 5V, the voltage of 9V, 12V or other forms.
It should be understood that the internal power switching circuit VII in supplying power for outside circuit VI, Fig. 8 in Fig. 7, for the ease of
Understand, metal-oxide-semiconductor can also be made certainly in other embodiments by using relay.
It should be noted that unless otherwise indicated, technical term or scientific term used in this application should be this Shen
It please the ordinary meaning that is understood of one of ordinary skill in the art.
In the description of the present application, it is to be understood that term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on the figure or
Positional relationship is merely for convenience of description the application and simplifies description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore should not be understood as the limitation to the application.
In addition, term " first ", " second " etc. are used for description purposes only, it is not understood to indicate or imply relatively important
Property or implicitly indicate the quantity of indicated technical characteristic.In the description of the present application, the meaning of " plurality " is two or more,
Unless otherwise specifically defined.
In this application unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The interaction relationship of the connection in portion or two elements.It for the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in this application.
In this application unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with
It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
First feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below "
One feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
The preferable specific embodiment of the above, only the application, but the protection scope of the application is not limited thereto,
Within the technical scope of the present application, any changes or substitutions that can be easily thought of by anyone skilled in the art,
Should all it cover within the scope of protection of this application.Therefore, the protection scope of the application should be with scope of protection of the claims
Subject to.
Claims (10)
1. a kind of power conversion module (100) with bidirectional power supply function is used for and Vehicular battery (106) and mobile unit
(107) it connects characterized by comprising
External interface (101), is used to connect with external devices；With
Controller (105) is used for for connecting with the external interface (101), Vehicular battery (106) and mobile unit (107)
It is converted into internal control signal according to external signal, is configured to be powered by the Vehicular battery (106) Xiang Suoshu external equipment, also
It is configured in the Vehicular battery (106) power shortage, from the external equipment to the Vehicular battery (106) and/or institute
State mobile unit (107) power supply.
2. power conversion module (100) according to claim 1, which is characterized in that the controller (105) includes:
Power module (I) is the controller for supply voltage to be converted to the operating voltage of the controller (105)
(105) it powers；
Vehicle battery voltage measuring circuit (III), for obtaining the voltage signal of the Vehicular battery (106)；
External equipment identification circuit (IV) is set for the presetting reference voltage of the controller (105) and the outside
Standby voltage, and judge that the property of the external equipment is to belong to electricity consumption type equipment or power-type equipment accordingly；
Main control MCU (II), for being known according to the vehicle battery voltage measuring circuit (III) and the external equipment that detect
The information of other circuit (IV), and it is converted into internal control instruction accordingly；
Pressure regulation, current limliting module (V), for the main control MCU (II) communication connection, be configured to according to the main control MCU (II)
Control instruction by the voltage pressure regulation of Vehicular battery (106) at voltage needed for external equipment, power for the external equipment, also
Be configured to according to the control instruction of the main control MCU (II) by the voltage pressure regulation of external equipment at the mobile unit (107) and/
Or voltage needed for the Vehicular battery (106), it is the mobile unit (107) and/or the Vehicular battery (106) power supply, also
Be configured to limitation and flow through the current value of external interface (101) and the power conversion module (100), avoid overload initiation to institute
The accident stating the damage of power conversion module (100) and may cause；
Supplying power for outside circuit (VI) is controlled by it for connecting and connect with the main control MCU (II), be also used to the pressure regulation,
Current limliting module (V) connection realizes the connection with the Vehicular battery (106), so that institute under the main control MCU (II) control
It states Vehicular battery (106) to power to the pressure regulation, current limliting module (V), and then realizes the Vehicular battery (106) to described outer
The power supply of portion's equipment；With
Internal power switching circuit (VII), is controlled by it for connecting and connecing with the main control MCU (II), is also used to and the tune
Pressure, current limliting module (V) connection, realize under the main control MCU (II) control and connect with the mobile unit (107), so that institute
It states external equipment to power to the pressure regulation, current limliting module (V), and then realizes the external equipment to the mobile unit (107)
Power supply.
3. power conversion module (100) according to claim 1, which is characterized in that further include switching switch (104), use
In the power supply circuit for switching the power conversion module (100), for the mobile unit (107) or the Vehicular battery
(106) it powers, or powers simultaneously to the mobile unit (107) and the Vehicular battery (106), the switching switch
(104) it is inputted and is changed according to signal,
The controller (105) is set to be configured to be powered by the external equipment to the mobile unit (107)；Or
The controller (105) is set to be configured to be powered by the external equipment to the on-vehicle battery, alternatively, the controller
(105) it is configured to from the external equipment to the Vehicular battery (106) and the mobile unit (107) while powering.
4. power conversion module (100) according to claim 1, which is characterized in that be configured in the controller (105)
When powering from the external equipment to the Vehicular battery (106) and/or the mobile unit (107),
Within a preset time, the controller (105) is only configured to only be supplied to the mobile unit (107) from the external equipment
Electricity；
After reaching the preset time, the controller (105) is configured to from the external equipment to the Vehicular battery
(106) it powers, alternatively, the controller (105) is configured to from the external equipment to the Vehicular battery (106) and the vehicle
Equipment (107) are carried to power simultaneously.
5. power conversion module (100) according to claim 1, which is characterized in that be configured in the controller (105)
When powering from the external equipment to the Vehicular battery (106) and/or the mobile unit (107),
The controller (105) is configured to preferentially power to the mobile unit (107), obtains in the mobile unit (107) electric
After starting, Xiang Suoshu controller (105) sends feedback signal, and the controller (105) responds the feedback signal, be configured to by
The external equipment is powered to the Vehicular battery (106).
6. power conversion module (100) according to claim 1, which is characterized in that external interface (101) quantity is
It is multiple, two external interfaces (101) are included at least, wherein an external interface (101) is configured to be only capable of to the mobile unit
(107) it powers, another external interface (101) is configured to be only capable of to the Vehicular battery (106) and/or the mobile unit
(107) it powers.
7. power conversion module (100) according to claim 1, which is characterized in that external interface (101) the surrounding cloth
It is equipped with LED light (102), the LED light (102) is connected with the controller (105) and is controlled by it, described outer for prompting
The working condition of portion's interface (101).
8. power conversion module (100) according to claim 1, which is characterized in that external interface (101) the surrounding cloth
It is equipped with LED light circle (103), the LED light circle (103) is connected with the controller (105) and is controlled by it, for prompting
State the working condition of external interface (101).
9. power conversion module (100) according to claim 1, which is characterized in that it further include buzzer (108), it is described
Buzzer (108) is connected with the controller (105) and is controlled by it, for prompting the work of the external interface (101)
State.
10. power conversion module (100) according to claim 1 to 9, which is characterized in that the external interface
It (101) is that connector is used in USB interface, cigar lighter, DC translation interface or electric appliance connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910750948.1A CN110395202A (en) | 2019-08-14 | 2019-08-14 | Power conversion module with bidirectional power supply function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910750948.1A CN110395202A (en) | 2019-08-14 | 2019-08-14 | Power conversion module with bidirectional power supply function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110395202A true CN110395202A (en) | 2019-11-01 |
Family
ID=68328281
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910750948.1A Pending CN110395202A (en) | 2019-08-14 | 2019-08-14 | Power conversion module with bidirectional power supply function |
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| Country | Link |
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| CN (1) | CN110395202A (en) |
Cited By (1)
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| CN111976645A (en) * | 2020-08-31 | 2020-11-24 | 立胜汽车科技(苏州)有限公司 | Control method and device of electronic steering column lock |
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