CN105790340A - Vehicle charging system and vehicle - Google Patents
Vehicle charging system and vehicle Download PDFInfo
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- CN105790340A CN105790340A CN201410823139.6A CN201410823139A CN105790340A CN 105790340 A CN105790340 A CN 105790340A CN 201410823139 A CN201410823139 A CN 201410823139A CN 105790340 A CN105790340 A CN 105790340A
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Abstract
The invention discloses a vehicle charging system. The vehicle charging system comprises a charging power supply device, a power conversion module, a second contactor control unit, a vehicle-mounted power battery, an AC power supply device and a controller, wherein the charging power supply device is used for outputting a first alternating current or a first direct current and comprises a charging trigger module, the power conversion module is used for converting the first alternating current or the first direct current to a second direct current to charge the vehicle-mounted power battery in a charging mode, and converting a third direct current output from the vehicle-mounted power battery to a second alternating current in an inversion mode, the AC power supply device is used for triggering an inversion signal when an AC load is accessed and supplying power to the AC load with the second alternating current, and the controller is used for controlling the power conversion module to enter the charging mode so as to achieve charging and controlling the power conversion module to enter the inversion mode so as to achieve discharging. The vehicle charging system according to the embodiment of the invention has functions of charging and discharging and is flexible in the charging mode, and the user demand is met. The invention also discloses a vehicle.
Description
Technical field
The present invention relates to automobile technical field, particularly to a kind of on-board charging system and vehicle.
Background technology
Along with the sternness further of the day by day in short supply of the energy and environmental pollution, the electric automobile of energy-conserving and environment-protective increasingly receives concern.But the course continuation mileage of electric automobile is limited to electrokinetic cell, to be how the problem that a lot of electric automobile needs to solve for power battery charging easily.Just current, charging electric vehicle mainly has off-board and vehicle-mounted two ways, but off-board mode construction cost is high, it is wide to relate to area, it is impossible to meet the demand that user charges voluntarily；Vehicle-mounted mode mostly is single phase ac charger, and circuit devcie can not multiplexing, therefore work out compatible multiple charger and external power supply, the charging system that integrated level is high is a current research direction.
Most charging electric vehicles only use external commercial or home single phase alternating current power supply charging modes, maybe can only use electric automobile charging station DC source charging modes, it is impossible to realize direct current/single-phase charge mode compatible.Additionally existing Mobile inverse power source generally exports from low voltage starting battery inversion, and power is little, and circuit devcie can not multiplexing.
Summary of the invention
It is contemplated that one of technical problem solved at least to a certain extent in correlation technique.For this, it is an object of the present invention to propose a kind of on-board charging system.This system has charging and discharging function, and charging modes is flexible, meets user's request.
Further object is that a kind of vehicle of proposition.
To achieve these goals, the embodiment of a first aspect of the present invention discloses a kind of on-board charging system, including: charging power source device, described charging power source device is used for exporting the first alternating current or the first unidirectional current, charging power source device includes charging trigger module, when described charging power source device incoming transport power supply or DC source, described charging trigger module sends AC charging signal or DC charging signal to described controller, described controller controls the first alternating current of being exported by described charging power source device of described power conversion module according to described AC charging signal or described first unidirectional current is converted to after the second unidirectional current as vehicle mounted dynamic battery charging；First catalyst control unit；Power conversion module, described power dress die change block is connected with described charging power source device by described first catalyst control unit, under charge mode, charge for vehicle mounted dynamic battery after described first alternating current or described first unidirectional current are converted to the second unidirectional current, under inverter mode, the 3rd DC inverter exported by vehicle mounted dynamic battery is the second alternating current；Second catalyst control unit and vehicle mounted dynamic battery, described vehicle mounted dynamic battery is connected with described power conversion module by described second catalyst control unit；AC power supply device, described AC power supply device is connected with described first catalyst control unit, for triggering inverter signal when incoming transport load, and is that AC load is powered by described second alternating current；Signal sampling module, for gathering voltage signal and the current signal of described on-board charging system；Controller, for described first catalyst control unit and described second catalyst control unit are controlled, and when receiving charging signals, control described power conversion module according to described voltage signal and current signal and enter described charge mode, to realize the charging of described vehicle mounted dynamic battery, and when receiving described inverter signal, control described power conversion module according to described voltage signal and current signal and enter described inverter mode, to realize the electric discharge of described vehicle mounted dynamic battery.
On-board charging system according to embodiments of the present invention, vehicle mounted dynamic battery is charged by alternating current and the unidirectional current that can utilize outside, therefore can there is more selection to on-board charging system when user charges, charging modes is flexible, charging for on-board charging system provides facility, meets user's request.It addition, the power conversion module of the on-board charging system of the embodiment of the present invention can realize inverter function, such that it is able to make on-board charging system that peripheral load to be discharged, meet many-sided uses such as driving and parking.
The embodiment of second aspect present invention discloses a kind of vehicle, including the on-board charging system described in above-mentioned first aspect embodiment.This vehicle can utilize AC and DC two ways to charge for vehicle mounted dynamic battery, and charging modes is flexible, provides facility for charging, meets user's request.It addition, power conversion module can be realized inverter function by this vehicle, such that it is able to make on-board charging system that peripheral load to be discharged, meet many-sided uses such as driving and parking.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of on-board charging system according to an embodiment of the invention；
Fig. 2 is the structured flowchart of on-board charging system in accordance with another embodiment of the present invention；
Fig. 3 is the charge/discharge control principle drawing of on-board charging system according to an embodiment of the invention；And
Fig. 4 is the charge/discharge control flow chart of on-board charging system according to an embodiment of the invention.
Detailed description of the invention
Being described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of same or like function from start to finish.The embodiment described below with reference to accompanying drawing is illustrative of, it is intended to is used for explaining the present invention, and is not considered as limiting the invention.
On-board charging system according to embodiments of the present invention and vehicle are described below in conjunction with accompanying drawing.
Fig. 1 is the structured flowchart of on-board charging system according to an embodiment of the invention.As shown in Figure 1, on-board charging system according to an embodiment of the invention, including: charging power source device the 110, first catalyst control unit 120, power conversion module the 130, second catalyst control unit 140, vehicle mounted dynamic battery 150, AC power supply device 160, signal sampling module 170 and controller 180.
Wherein, charging power source device 110 is used for exporting the first alternating current and the first unidirectional current.Charging power source device 110 includes charging trigger module 111, when charging power source device 110 incoming transport power supply or DC source, charging trigger module 111 sends AC charging signal or DC charging signal to controller 180, controller 180 control the first alternating current of being exported by charging power source device 110 of power conversion module 130 according to AC charging signal or the first unidirectional current be converted to the second unidirectional current after charge for vehicle mounted dynamic battery 150, thus realizing outside alternating current or the external DC source charge function to vehicle mounted dynamic battery 150.
Power dress die change block 130 is connected with charging power source device 110 by the first catalyst control unit 120, for realizing the conversion of AC/DC, DC/DC and DC/AC, namely under charge mode, the first alternating current exported by charging power source device 110 or the first unidirectional current charge for vehicle mounted dynamic battery 150 after being converted to the second unidirectional current, under inverter mode, the 3rd DC inverter exported by vehicle mounted dynamic battery 150 is the second alternating current, namely controls vehicle mounted dynamic battery electric discharge.Vehicle mounted dynamic battery 150 is connected with power conversion module 130 by the second catalyst control unit 140.AC power supply device 160 is connected with the first catalyst control unit 120, for providing alternating current for AC load (being shown without in Fig. 1), namely triggers inverter signal when incoming transport load, and is that AC load is powered by the second alternating current.Signal sampling module 170 is for gathering voltage signal and the current signal of on-board charging system.Controller 180 for according to charge/discharge signal and voltage signal to the first catalyst control unit 120, power conversion module 130 and the second catalyst control unit 140 are controlled, realize the charge or discharge of vehicle mounted dynamic battery 150, specifically, controller 180 is when receiving charging signals, control power conversion module 130 according to voltage signal and current signal and enter charge mode, to realize the charging of vehicle mounted dynamic battery 150, and when receiving inverter signal, control power conversion module 130 according to voltage signal and current signal and enter inverter mode, to realize the electric discharge of vehicle mounted dynamic battery 150.
Separately below charging power source device the 110, first catalyst control unit 120, power conversion module the 130, second catalyst control unit 140, vehicle mounted dynamic battery 150, AC power supply device 160, signal sampling module 170 and controller 180 are described in detail.
Charging power source device 110 can be household AC electric supply installation, can also be that the Special alternating-current charging device according to standard making is or/and be to provide galvanic supply unit, if household AC electric supply installation or the Special alternating-current charging device according to standard making, then the first alternating current of charging power source device output is single-phase alternating current, namely this charging power source device 110 is suitable for single-phase alternating current or unidirectional current, if the first alternating current AC is 220V, suggestion be supplied to the second galvanic charging voltage of vehicle mounted dynamic battery 150 350V or more than, if being the first unidirectional current, the supply voltage suggestion being then supplied to vehicle mounted dynamic battery 150 is not less than the terminal voltage of vehicle mounted dynamic battery 150.When first catalyst control unit 120 is charging, charging power source device 110 controls device with the connecting valve of power conversion module 130, under default situations, this controls switch for off-state, when being controlled its adhesive by controller 180, vehicle mounted dynamic battery 150 can be charged or discharge by expression, first catalyst control unit 120 can be external, but it is security consideration, is typically arranged on vehicle.
Power conversion module 130 Main Function is the conversion of AC/DC, DC/DC or DC/AC, and namely exchange turns direct current, DC-DC or direct current and delivers stream.When incoming transport electricity be vehicle mounted dynamic battery 150 charge time, power conversion module 130 carries out exchange and turns direct current；When access unidirectional current be vehicle mounted dynamic battery 150 charge time, power conversion module 130 carries out DC-DC；When vehicle mounted dynamic battery 150 discharges, power conversion module 130 carries out DC-DC.Namely under charge mode, charging for vehicle mounted dynamic battery 150 after the first alternating current or the first unidirectional current are converted to the second unidirectional current, under inverter mode, the 3rd DC inverter exported by vehicle mounted dynamic battery 150 is the second alternating current.The size of the second alternating current adapts to the running voltage of AC load.
Second catalyst control unit 140 is the Connection Card switch controlling device with vehicle mounted dynamic battery 150, and under default situations, this controls switch for off-state, and after controller 180 controller adhesive, vehicle mounted dynamic battery 150 can be charged or discharge by expression.
Vehicle mounted dynamic battery 150 is the energy storage device providing power resources to vehicle (such as electric automobile), generally can provide the unidirectional current of more than high pressure 300V.
AC power supply device 160 is to order about power conversion module 130 to be operated in the load device of inverter mode, the rear end of AC power supply device 160 connects the load needing to provide alternating current, in one embodiment of the invention, AC power supply device 160 includes electric discharge trigger module (being shown without in Fig. 1), when AC power supply device 160 incoming transport load, electric discharge trigger module sends inverter signal to controller 180, controller 180 controls power conversion module 130 according to inverter signal and carries out DC/AC conversion, namely control power conversion module 130 and be operated in inverter mode, with the 3rd DC inverter that vehicle mounted dynamic battery 150 is exported for the second alternating current, AC power supply device 160 utilizes the second alternating current to power for AC load.Thus, the AC load that the alternating current after conversion is peripheral by AC power supply device 160 is powered.Further, in order to meet the needs of more peripheral AC load, AC power supply device 160 can be multiple, in one embodiment of the invention, as shown in Figure 2, AC power supply device 160 includes the first sub-device of Alternating Current Power Supply 161 and the sub-device 162 of the second Alternating Current Power Supply such that it is able to is more peripheral load supplying simultaneously, meets user's request.
Signal sampling module 170 can add the voltage signal needed for the isolation sample mode acquisition controller such as optocoupler, current Hall isolation 180, current signal etc. by electric resistance partial pressure.
Controller 180 is the control unit of whole system, the signal that signal sampling module 170 provides is processed, and by internal algorithm, power conversion module the 130, first catalyst control unit 120 and the second catalyst control unit 140 are controlled, to realize charging and discharging function.
As shown in Figure 3, first catalyst control unit 120 includes DC charging control switch SW1, AC charging controls switch SW2, the first alternating current discharge controls to switch SW3 and the second alternating current discharge and controls switch SW4, further, power conversion module 130 includes BUCK-BOOST buck translation circuit, namely can be realized by BUCK-BOOST buck translation circuit, for instance be made up of four switching tubes (such as Q1, Q2, Q3 and Q4) etc. one can be two-way converter circuit.In conjunction with Fig. 1, Fig. 2 and Fig. 3, the AC charging end of charging power source device 110 controls switch SW2 by AC charging and is connected with power conversion module 130, the DC charging end of charging power source device 110 controls switch SW1 by DC charging and is connected with power conversion module 130, the first sub-device 161 of Alternating Current Power Supply controls switch SW3 by the first alternating current discharge and is connected with power conversion module 130, and the second sub-device 162 of Alternating Current Power Supply controls switch SW4 by the second alternating current discharge and is connected with power conversion module 130.
As shown in Figure 4, and in conjunction with Fig. 1 to Fig. 3, the work process of the on-board charging system of the embodiment of the present invention includes:
S401: receive charge/discharge signal.
S402: controller 180 works.
S403: duty judges.
S404: determine whether that single phase ac is charged, if it is performs the single phase ac charging flow of S4041 to S4044, otherwise returns S403.
S405: determine whether DC charging, if it is performs the DC charging flow process of S4051 to S4054, otherwise returns S403.
S406: determine whether that the first sub-device 161 of Alternating Current Power Supply needs power supply, if it is perform the discharge flow path of S4061 to S4064, otherwise return S403.
S407: determine whether that the second sub-device 162 of Alternating Current Power Supply needs power supply, if it is perform the discharge flow path of S4071 to S4074, otherwise return S403.
Further in conjunction with Fig. 3, controller 180 is after receiving charging signals, what judge that charging power source device exports is direct current or exchange, and control power conversion module 130 and change accordingly, after receiving inverter signal, controlling power conversion module 130 and realize inversion function, thus the first sub-device of Alternating Current Power Supply 161 and/or the sub-device 162 of the second Alternating Current Power Supply are discharged, the first sub-device of Alternating Current Power Supply 161 and/or the sub-device 162 of the second Alternating Current Power Supply discharge and the AC load accessed are powered.Specifically, the corresponding catalyst of adhesive (i.e. SW1, SW2, SW3 or SW4) after adhesive catalyst SW3.Then following operation is carried out.
If for AC charging, signal sampling module 170 gather terminal voltage after net side alternating voltage, A.C. contactor SW2, electric current and DC voltage, electric current before and after inductance L1, it is transferred to controller 180, controller 180 to Q1 to Q4 driving PWM waveform dutycycle adjustment and is exported by internal calculation according to the sampled signal of signal sampling module 170, control turning on and off of Q1 to Q4, it is achieved controlled rectification.
If being DC charging, signal sampling module 170 gathers after net side alternating voltage, A.C. contactor SW2 electric current and DC voltage, electric current before and after terminal voltage, inductance L1, it is transferred to controller 180, controller 180 and is exported Q1 to Q4 driving PWM waveform dutycycle adjustment by internal calculation according to this, control turning on and off of Q1 to Q4, it is achieved boosting output.
If discharged for inversion, vehicle mounted dynamic battery 150 is as input, signal sampling module 170 gathers alternating voltage as feedback, controller 180 sends PWM waveform by internal calculation by sinusoidal rule according to this and controls Q1 to Q4 and turn on and off, make the alternating current that AC end output voltage is suitable, it is achieved inversion is discharged.
On-board charging system according to embodiments of the present invention, vehicle mounted dynamic battery is charged by alternating current and the unidirectional current that can utilize outside, therefore can there is more selection to on-board charging system when user charges, charging modes is flexible, charging for on-board charging system provides facility, meets user's request.It addition, the power conversion module of the on-board charging system of the embodiment of the present invention can realize inverter function, such that it is able to make on-board charging system that peripheral load to be discharged, meet many-sided uses such as driving and parking.
As in figure 2 it is shown, the on-board charging system of the embodiment of the present invention also includes: vehicle-mounted startup battery 190, DC conversion modules 200 and auxiliary power module 210.Wherein, DC conversion modules 200 is connected with vehicle-mounted startup battery 190 and power conversion module 130 respectively, DC conversion modules 200 is controlled by controller 180, at car when starting battery 190 and needing to charge, the second unidirectional current exported by power conversion module 130 is changed, thinking that vehicle-mounted startup battery 190 charges, wherein, what DC conversion modules was changed out is be suitable to the charging voltage to the charging of vehicle-mounted startup battery 190.Auxiliary power module 210 is for powering for controller 180 and signal sampling module 170.Specifically, auxiliary power module 210 is the power conversion module powered to signal sampling module 170 and controller 180 etc..The vehicle-mounted i.e. car load of startup battery 190 starts battery, provides low pressure support to whole system.DC conversion modules 200 is the power transfer module of the vehicle-mounted timely electric energy supplement of startup battery 190.In one embodiment of the invention, controller 180 is when vehicle-mounted startup battery 190 needs to charge, and control DC conversion modules 200 carries out electric current conversion and thinks that vehicle-mounted startup battery 190 charges.Thereby it is ensured that on-board charging system can reliably and securely run.
Further, embodiment of the invention discloses that a kind of vehicle, including: the on-board charging system as described in any one embodiment above-mentioned.This vehicle can utilize AC and DC two ways to charge for vehicle mounted dynamic battery, and charging modes is flexible, provides facility for charging, meets user's request.It addition, power conversion module can be realized inverter function by this vehicle, such that it is able to make on-board charging system that peripheral load to be discharged, meet many-sided uses such as driving and parking.
It addition, other of vehicle according to embodiments of the present invention is constituted and effect is all known for the ordinary skill in the art, in order to reduce redundancy, do not repeat.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means in conjunction with this embodiment or example describe are contained at least one embodiment or the example of the present invention.Additionally, term " first ", " second " are only for descriptive purposes, and it is not intended that indicate or imply relative importance or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or implicitly include at least one this feature.In describing the invention, " multiple " are meant that at least two, for instance two, three etc., unless otherwise expressly limited specifically.
Although above it has been shown and described that embodiments of the invention, it is understandable that, above-described embodiment is illustrative of, it is impossible to be interpreted as limitation of the present invention, and above-described embodiment can be changed, revises, replace and modification by those of ordinary skill in the art within the scope of the invention.
Claims (9)
1. an on-board charging system, it is characterised in that including:
Charging power source device, described charging power source device is used for exporting the first alternating current or the first unidirectional current；
First catalyst control unit；
Power conversion module, described power dress die change block is connected with described charging power source device by described first catalyst control unit, under charge mode, charge for vehicle mounted dynamic battery after described first alternating current or described first unidirectional current are converted to the second unidirectional current, under inverter mode, the 3rd DC inverter exported by vehicle mounted dynamic battery is the second alternating current；
Second catalyst control unit and vehicle mounted dynamic battery, described vehicle mounted dynamic battery is connected with described power conversion module by described second catalyst control unit；
AC power supply device, described AC power supply device is connected with described first catalyst control unit, for triggering inverter signal when incoming transport load, and is that AC load is powered by described second alternating current；
Signal sampling module, for gathering voltage signal and the current signal of described on-board charging system；
nullController，For described first catalyst control unit and described second catalyst control unit are controlled，And when receiving charging signals，Control described power conversion module according to described voltage signal and current signal and enter described charge mode，To realize the charging of described vehicle mounted dynamic battery，And when receiving described inverter signal，Control described power conversion module according to described voltage signal and current signal and enter described inverter mode，To realize the electric discharge of described vehicle mounted dynamic battery，Described charging power source device includes charging trigger module，When described charging power source device incoming transport power supply or DC source，Described charging trigger module sends AC charging signal or DC charging signal to described controller，Described controller controls the first alternating current of being exported by described charging power source device of described power conversion module according to described AC charging signal or described first unidirectional current is converted to after the second unidirectional current as vehicle mounted dynamic battery charging.
2. on-board charging system according to claim 1, it is characterised in that also include:
Vehicle-mounted startup battery；
DC conversion modules, described DC conversion modules is connected with described vehicle-mounted startup battery and described power conversion module respectively, described DC conversion modules is controlled by described controller, when described vehicle-mounted startup battery needs to charge, the second unidirectional current exported by described power conversion module is changed, and thinks that described vehicle-mounted startup battery charges；
Auxiliary power module, described auxiliary power module is used for as described controller and described signal sampling module for power supply.
3. on-board charging system according to claim 1, it is characterised in that described AC power supply device includes the first sub-device of Alternating Current Power Supply and the sub-device of the second Alternating Current Power Supply.
4. on-board charging system according to claim 3, it is characterized in that, described first catalyst control unit includes AC charging and controls switch, DC charging controls switch, first alternating current discharge controls switch and the second alternating current discharge controls switch, wherein, the AC charging end of described charging power source device controls switch by described AC charging and is connected with described power conversion module, the DC charging end of described charging power source device controls switch by described DC charging and is connected with described power conversion module, the described first sub-device of Alternating Current Power Supply controls switch by described first alternating current discharge and is connected with described power conversion module, the described second sub-device of Alternating Current Power Supply controls switch by described second alternating current discharge and is connected with described power conversion module.
5. on-board charging system according to claim 3, it is characterised in that described power conversion module includes BUCK-BOOST buck translation circuit.
6. on-board charging system according to claim 1, it is characterized in that, described AC power supply device includes electric discharge trigger module, when described AC power supply device accesses described AC load, described electric discharge trigger module sends described inverter signal to described controller, described controller controls described power conversion module according to described inverter signal and is operated in inverter mode, with the 3rd DC inverter that exported by vehicle mounted dynamic battery for the second alternating current, described AC power supply device utilizes described second alternating current to be that described AC load is powered.
7. on-board charging system according to claim 2, it is characterised in that described controller be additionally operable to described vehicle-mounted startup battery need charge time, control described DC conversion modules carry out DC/DC conversion think that described vehicle-mounted startup battery charges.
8. the on-board charging system according to any one of claim 1-7, it is characterised in that the first alternating current of described charging power source device output is single-phase alternating current.
9. a vehicle, it is characterised in that including: according to the on-board charging system described in any one of claim 1-8.
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