CN209479442U - Vehicle, power battery charging device and DC charging protect system - Google Patents
Vehicle, power battery charging device and DC charging protect system Download PDFInfo
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- CN209479442U CN209479442U CN201822166029.3U CN201822166029U CN209479442U CN 209479442 U CN209479442 U CN 209479442U CN 201822166029 U CN201822166029 U CN 201822166029U CN 209479442 U CN209479442 U CN 209479442U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
Present applicant proposes a kind of vehicle, power battery charging device and DC chargings to protect system; power battery charging device includes first switch module, energy-storage module, division module, boost module, second switch module and control module; first switch module is used to make power battery discharge to energy-storage module according to control instruction, and second switch module is used to make power battery charging device connect or disconnect with external power supply module according to on-off instruction；The application passes through setting division module, divide division module to the voltage on energy-storage module, and external power supply module is made to determine whether power battery charging device meets the charge condition in preset standard according to division module, electric current is exported to power battery charging device when meeting preset standard, keeps the control to power battery charging simpler.
Description
Technical field
This application involves automobile technical fields more particularly to a kind of vehicle, power battery charging device and DC charging to protect
Protecting system.
Background technique
Energy crisis and problem of environmental pollution are on the rise at present, and electric car is as the novel vehicles, Ke Yishi
Now " zero-emission ", the advantages that and electric car has structure simple, and capacity usage ratio is high, and noise is small, in automobile hair from now on
Leading position will be occupied in exhibition.Under the background of battery, motor and automatically controlled three power technologies relative maturity, charging technique and battery add
The demands such as thermal control become to become increasingly conspicuous, and are especially away the electric car of high pressure route, and cell voltage would generally reach 700V, and
The non-on-board charger (i.e. charging pile) of common 500V output is not obviously able to satisfy the demand of electric car direct current charge, promotes electricity
Electrical automobile is equipped with boosting DC.Boosting DC and capacitance module is usually arranged in the prior art, completes electricity by boosting DC and capacitance module
Shaking hands between pond and non-on-board charger, but handshake phase needs to cause to control by decompression transformation and boosting inverter
Journey is complicated, in addition, setting capacitance module increases cost and volume, is unfavorable for the popularization of electric car.
Utility model content
The application's is designed to provide a kind of vehicle, power battery charging device and DC charging protection system, with solution
Certainly handshake phase existing in the prior art control is complicated and the volume as caused by setting capacitance module is larger and cost
Higher problem.
The application is achieved in that the application first aspect provides a kind of power battery charging device, the power electric
Pond charging unit includes control module, first switch module, energy-storage module, division module, boost module and second switch mould
The first end and second end of block, the first switch module is separately connected the anode and cathode of power battery, the first switch
The third end of module connects the of the first end of the energy-storage module, the first end of the division module and the boost module
One end, the 4th end of the first switch module connect the second end of the energy-storage module, the second end of the division module, institute
The second end of boost module and the second end of the second switch module are stated, the third end of the division module connects the liter
The third end of die block, the 4th end of the boost module connect the first end of the second switch module, the second switch
The third end of module connects the anode and cathode of external power supply module with the 4th end, and the control module connects the first switch
The control terminal of module, the second switch module and the boost module.
Further, the first switch module include third switch, the 4th switch, the 5th switch and resistance, it is described
Third switch first end and second end is respectively first end and the third end of the first switch module, and the resistance is opened with the 5th
Branch is formed after closing series connection, the both ends of the branch are separately connected the first end and second end of the third switch, the third
The second end of switch and the second end of the 5th switch are connected in the third end of the first switch module altogether, and the of the 4th switch
One end is the second end of the first switch module, and the second end of the 4th switch is the 4th end of the first switch module, institute
The control terminal combination for stating the control terminal of third switch, the control terminal of the 4th switch and the 5th switch constitutes described the
The control terminal of one switch module.
Further, the division module includes first resistor and second resistance, and the first end of the first resistor is institute
The first end of division module is stated, the second end of the first resistor and the first end of the second resistance are connected in the partial pressure mould altogether
The third end of block, the second end of the second resistance are the second end of the division module, and the second resistance is sampling resistor.
Further, the boost module includes diode, controllable switch and inductance, and the cathode of the diode is institute
State the first end of boost module, the input terminal of the anode of the diode, the first end of the inductance and the controllable switch
It is connected in the third end of the boost module altogether, the output end of the controllable switch is the second end of the boost module, the electricity
The second end of sense is the 4th end of the boost module, and the control terminal of the controllable switch is the control terminal of the boost module.
Further, the boost module includes three-phase inverter and three phase alternating current motor, and the three-phase inverter includes
Three-phase bridge arm, every phase bridge arm include the power switch unit of two connections, and the input terminal of every phase bridge arm is connected in the boosting mould altogether
The first end of block, the output end of every phase bridge arm are connected in the second end of the boost module, two power switch in every phase bridge arm altogether
The tie point of unit is separately connected the three-phase coil of the three phase alternating current motor, and the tie point of the three-phase coil is the boosting
4th end of module, the tie point of two power switch units is the third end of the boost module in any one phase bridge arm.
Further, the second switch module includes first switch and the second switch, the first end of the first switch
With first end and the third end of second end to be described the be respectively second switch module, the first end of the second switch and the
Two ends are the respectively second end of the second switch module and the 4th end.
Further, the energy-storage module is capacitor, and the first end and second end of the capacitor is respectively the energy storage mould
The first end and second end of block.
Further, the energy-storage module is capacitor, and the first end and second end of the capacitor is respectively the energy storage mould
The first end and second end of block；The division module includes first resistor and second resistance, and the first end of the first resistor is
The first end of the first end of the division module, the first end of the first resistor and the second resistance is connected in the partial pressure altogether
The third end of module, the second end of the second resistance are the second end of the division module；The boost module includes two poles
Pipe, controllable switch and inductance, the cathode of the diode are the first end of the boost module, the anode of the diode,
The input terminal of the first end of the inductance and the controllable switch is connected in the third end of the boost module altogether, described controllably to open
The output end of pass is the second end of the boost module, and the second end of the inductance is the 4th end of the boost module, described
The control terminal of controllable switch is the control terminal of the boost module.
The application second aspect provides a kind of vehicle, and the vehicle further includes the dress of power battery charging described in first aspect
It sets.
The application third aspect provides a kind of DC charging protection system, and the DC charging protection system includes that setting exists
DC charging circuit in vehicle, the DC charging circuit includes the first switch module connecting with power battery, with non-vehicle
Carry the second switch module of charger connection；
DC charging protection system includes the direct current power supply loop being arranged in non-on-board charger and off-board fills
Electric machine controller；
The DC charging circuit further include:
Capacitance module, the capacitance module are used to receive putting for the power battery in first switch module conducting
Electricity；
Division module, the division module is for dividing the voltage on the capacitance module, the division module
Including first resistor and second resistance；
Boost module, the boost module are used for the external direct current power supply loop in second switch module conducting
To power battery, the non-on-board charger controller is obtained by the boost module for output after the voltage of output is boosted
The actual voltage value of the second resistance；
Vehicle control device, the vehicle control device are used to control the logical of the first switch module and second switch module
It is disconnected, and the target voltage values of the second resistance are sent to the non-on-board charger controller, and make the off-board charging
Machine controller controls the direct current power supply loop pair when the target voltage values and the actual voltage value meet preset standard
It discharges in the DC charging circuit.
Present applicant proposes a kind of vehicle, power battery charging device and DC chargings to protect system, which fills
Electric installation includes first switch module, energy-storage module, division module, boost module, second switch module and control module, and
One switch module is used to make power battery discharge to the energy-storage module according to control instruction, and second switch module is used for root
Power battery charging device is connected or disconnected with external power supply module according to on-off instruction；The application passes through setting partial pressure mould
Block divides division module to the voltage on energy-storage module, and external power supply module is made to determine power according to division module
Whether battery charger meets the charge condition in preset standard, defeated to power battery charging device when meeting preset standard
Electric current out keeps the control to power battery charging simpler, at the same be omitted in the prior art with external power supply wired in parallel
The capacitor of setting, reduces the cost of entire charging unit, and reduces the volume of charging unit.
Detailed description of the invention
It in order to more clearly explain the technical solutions in the embodiments of the present application, below will be to embodiment or description of the prior art
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only some of the application
Embodiment for those of ordinary skill in the art without any creative labor, can also be according to these
Attached drawing obtains other attached drawings.
Fig. 1 is a kind of structural schematic diagram for power battery charging device that a kind of embodiment of the application provides；
Fig. 2 is a kind of circuit diagram for power battery charging device that a kind of embodiment of the application provides；
Fig. 3 is a kind of another circuit diagram for power battery charging device that a kind of embodiment of the application provides；
Fig. 4 is a kind of charging method flow chart for power battery that a kind of embodiment of the application provides；
Fig. 5 is a kind of structural schematic diagram for DC charging protection system that a kind of embodiment of the application provides；
Fig. 6 is a kind of current path figure for DC charging protection system that a kind of embodiment of the application provides；
Fig. 7 is a kind of another current path figure for DC charging protection system that a kind of embodiment of the application provides.
Specific embodiment
It is with reference to the accompanying drawings and embodiments, right in order to which the objects, technical solutions and advantages of the application are more clearly understood
The application is further elaborated.It should be appreciated that specific embodiment described herein is only used to explain the application, and
It is not used in restriction the application.
In order to illustrate the technical solution of the application, the following is a description of specific embodiments.
The embodiment of the present application provides a kind of power battery charging device of vehicle, as shown in Figure 1, power battery charging device
Include:
Energy-storage module 103；
First switch module 102, first switch module 102 are used to make power battery 101 to energy storage mould according to control instruction
Block 103 discharges；
Division module 104, division module 104 include sampling resistor, and sampling resistor is used for the voltage on energy-storage module 103
It is divided；
Boost module 105, boost module 105 after boosting to the voltage that external power module 107 exports for exporting
To power battery, external power supply module 107 obtains the actual voltage value of sampling resistor；
Second switch module 106, second switch module 106 are used to making according to on-off instruction power battery charging device and outer
Portion's power module 107 connects or disconnects；
Control module 108, control module 108 are used to control the logical of first switch module 102 and second switch module 106
Break, and sends the target voltage values of sampling resistor in division module 105 to external power module 107, and make external power supply module
107 pass through boost module 105 when the target voltage values of sampling resistor and the actual voltage value of sampling resistor meet preset standard
It charges to power battery 101.
Wherein, first switch module 102 is for making power battery 101 connect power battery charging device to power battery
It carries out charging or disconnects with power battery charging device to stop charging to power battery；Energy-storage module 103 is for depositing
The electric energy that power battery 101 exports is stored up, when power battery 101 completes the charging to energy-storage module 103, on energy-storage module 103
Voltage it is identical as the voltage of power battery, energy-storage module 103 may include the energy storage devices such as capacitor C1 or inductance；Divide mould
Block 104 includes sampling resistor, sampling resistor for being divided to the voltage on energy-storage module 103, and by with external power supply
Module 107 connects, and external power supply module 107 is made to detect the value of the partial pressure of sampling resistor；Boost module 105 may include energy storage
Unit and power switch unit can pass through energy-storage units and the power switch anode with external power supply module 107 respectively
It is connected with cathode, the control terminal link control module 108 of power switch unit, the power switch unit root in boost module 105
According to control module 108 export signal be connected or turned off, make energy-storage units access in different circuits carry out charging or
Person discharges and then realizes the boosting to external 107 output voltage of power module；Second switch module 106 is for making external power supply mould
Block 107 connects power battery charging device so that external power supply module 107 carries out electric discharge or disconnects with external power supply module 107
To stop discharging；External power supply module 107 can be non-on-board charger, such as charging pile etc.；Control module 108 can be with
The phase current of the voltage of power battery 101, electric current, temperature and three phase alternating current motor is acquired, control module 108 may include whole
Vehicle controller, the control circuit of electric machine controller and BMS battery manager circuit, three are connected by CAN line, control module
Disparate modules in 108 are according to the turn-on and turn-off of power switch in acquired information control boost module 105 to realize not
With the conducting of current loop.
Wherein, when power battery charging device is connect with external power supply module 107, by the way that division module 104 is arranged, make
Division module 104 divides the voltage on energy-storage module 103, and control module 108 sends to external power module 107 and divides
The target voltage values of sampling resistor in module 104, while external power supply module 107 is able to detect that division module 104 up-samples
The actual voltage value of resistance determines whether to meet according to the actual voltage value of target voltage values and sampling resistor on sampling resistor
Charge condition in preset standard, exports electric current to boost module 105 when meeting charge condition, and boost module 105 is risen
After pressure output meets the interaction of the voltage in preset standard using the partial pressure effect of division module 104 and wants to power battery 101
Ask, make to power battery 101 charge control it is simpler, while be omitted in the prior art with external power supply module 107 simultaneously
The capacitor for joining setting, reduces the cost of entire charging unit, and reduce the volume of charging unit.
For division module 104 and energy-storage module 103, division module 104 and energy-storage module 103 are connected in parallel, energy storage mould
Block 103 is capacitor, and division module 104 includes first resistor and second resistance, the first resistor and second resistance of division module 104
Release for energy-storage module 103, wherein second resistance is sampling resistor, second resistance and first resistor and second resistance and
Ratio the first preset standard of satisfaction of value, first resistor and second resistance meet the second preset standard with value.
Wherein, the first preset standard is that second resistance and first resistor and second resistance and value ratio is equal to external electrical
The ratio of the median of the output voltage of the median and power battery of the output voltage of source module；
Wherein, the median of the output voltage of power battery is the maximum output voltage value and minimum output electricity of power battery
The average value of pressure value, the median of the output voltage of external power supply module are the maximum output voltage value and most of external power supply module
The average value of low output voltage value.
Second preset standard meets following formula for the sum of first resistor and second resistance:
Wherein, E is the voltage of power battery, and V is the voltage after the completion of capacitor electric discharge, and V is less than 60
Volt, t are discharge time, and t is not more than 5 minutes, and C is capacitor's capacity, R be first resistor and second resistance and value.
Wherein, external power supply module carries out the national standard that charging is related to vehicle mounted dynamic battery are as follows:
1) requirement in national standard GB/T 18487.1-2015 B.3.4, non-on-board charger control device detect vehicle end
Cell voltage is normal, and (confirmation contactor outer end voltage: (1) with communication message battery voltage error range≤± 5%, and (2) are big
In charger minimum output voltage and it is less than charger maximum output voltage) it is closed charging pile non-on-board charger interior contact afterwards
Direct current power supply loop is connected in device.
2) power supply unit output voltage, output voltage classification: exchange: single-phase are pressed in the 4.4 of national standard GB/T 18488.2-2015
220V, three-phase 380V；Direct current: 200V to 500V, 350V to 700V, 500V to 950V, DC charging current preferred value: 80A,
100A, 125A, 160A, 200A, 250A
3) 8.3.1 of national standard GB/T 18488.2-2015 provides passive discharge time, i.e., supplies in cutting direct current
After power supply, and drive motor controller is not involved under conditions of any work, Support Capacitor open-circuit voltage from cutting the moment to
Drop to the 60V time below.
4) time of passively releasing is made in the 5.5.3 of national standard GB/T18488.1-2015 and is distinctly claimed, Support Capacitor
Passively releasing the time should be no more than 5min, when having active discharge requirement to drive motor controller, drive motor controller branch
Support capacitor discharge time should be no more than 3S.
Based on the requirement in above-mentioned national standard GB/T 18487.1-2015 B.3.4, second resistance and first resistor and the are set
Two resistance and value ratio is equal in the median of output voltage and the output voltage of power battery of external power supply module
Between the ratio that is worth.
B.3.4 mentioned in national standard GB/T 18487.1-2015: greater than charger minimum output voltage and be less than charger most
Therefore high output voltage is worth by the maximum output voltage value and minimum output voltage of power battery and external power supply module
To median, and then the intrinsic standoff ratio of first resistor and second resistance in division module is obtained, meets point of the resistance of the intrinsic standoff ratio
Pressure can be between the minimum voltage and ceiling voltage of charger, while needing according to capacitor's capacity and national standard GB/T18488.1-
Requirement in 2015 5.5.3 to the time of passively releasing calculates the maximum value of passive bleeder resistance, then according to first resistor
Maximum value is split with the ratio of second resistance, final first resistor and second resistance are obtained, to meet voltage divide function
The double requirements passively released.
Specifically, the selection of the first resistor and second resistance of division module mainly considers following two o'clock:
It is to meet power requirement first, the resistance value of first resistor and second resistance is selected greatly as far as possible, system loss can be reduced,
But the voltage detecting before non-on-board charger is charged cannot be influenced, in addition the power of resistance will also meet under maximum voltage
Requirement.The followed by setting of intrinsic standoff ratio M, wherein M=R2/ (R1+R2), R1 are first resistor resistance value, and R2 is second resistance resistance
Value, it is assumed that the ceiling voltage and minimum voltage of power battery are respectively Umax and Umin, then the midrange Uz of cell output voltage
=(Umax+Umin)/2；The output voltage range of non-on-board charger is 200V~500V, midpoint voltage value Us=(500+
200)/2=350V, then intrinsic standoff ratio M=Us/Uz=350*2/ (Umax+Umin).According to 4.4 parts of national standard 18787.1, close
Requirement in electric car power supply unit, the output voltage of direct current non-on-board charger the lowest class require be 200V~
500V, midrange Us=(500+200)/2=350V of output voltage.Assuming that the ceiling voltage Umax=of power battery
700V, the minimum voltage Umin=520V of power battery, so the midrange Uz=(Umax+ of the operating voltage of power battery
Umin)/2=610V, then the intrinsic standoff ratio M=Us/Uz=350/610=0.574 of resistance；In addition national standard GB/T 18488.2-
2015 8.3.1 is provided that is, after cutting off DC power supply, and drive motor controller is not to passive discharge time
Under conditions of participating in any work, Support Capacitor open-circuit voltage is from the cutting moment to dropping to the 60V time below.National standard GB/
The time of passively releasing is made in the 5.5.3 of T18488.1-2015 and being distinctly claimed, the time of passively releasing of Support Capacitor should be little
Passive bleeder resistance would generally be configured inside electric machine controller, this is passively let out in 5min to meet above-mentioned requirement of passively releasing
Electric discharge resistance one end is connected to the anode of bus capacitor, and the other end is connected to the cathode of bus capacitor, and carries out power match satisfaction
To the requirement for time of passively releasing in the 5.5.3 of GB/T18488.1-2015, therefore can by first resistor and second resistance
To be merged with passive bleeder resistance, achievees the purpose that simplified structure and reduce cost, specific implementation method is will be original
Passive bleeder resistance split into two resistance according to the ratio of resistance R1 and R2, for example, R2=574K, R1=can be selected
426K.The power loss for calculating each resistance simultaneously, the resistance loss power P 0=Umax*Umax/ in controllable switch shutdown
(R1+R2)=0.49W, the resistance loss power P 1=Umax*Umax/R1=1.15W when lower bridge arm is opened, when lower bridge arm is closed
Resistance loss P2=Umax*Umax/R2=0.853W when disconnected, loss power is smaller all in 1W or so, will not produce to system effectiveness
Raw larger impact.When power battery voltage highest, the tie point voltage U0=Umax*M=402V of corresponding resistance R1 and R2, when
When power battery voltage is minimum, the tie point voltage U0=Umin*M=298V of corresponding resistance R1 and R2 meets off-board fill
(i.e. B3.4 is mentioned in national standard GB/T 18487.1-2015: (2) are greater than charging for the requirement of the output voltage of motor 200V~500V
Machine minimum output voltage and be less than charger maximum output voltage), can pass through the sampling of voltage interaction.
The division module that the application proposes is acted on using the partial pressure of resistance, fully meets national standard GB/T18487.1-2015's
B.3.4 the voltage interactive requirements in eliminate Partial Power switching tube and capacitor in the prior art, pass through non-on-board charger
Constant voltage mode, realize by non-on-board charger to battery boost charge function.It in addition can be by divider resistance and original quilt
Dynamic bleeder resistance merges, i.e., original passive bleeder resistance is divided into according to the ratio of first resistor and second resistance
Two resistance, further reach simplified structure, reduce the purpose of cost.
For first switch module 102, as an implementation, first switch module 102 may include a switch,
It is connected between the anode of power battery and energy-storage module or is connected between the cathode of power battery and energy-storage module, first
Switch module 102 also may include multiple switch, and wherein at least one switchs the anode and energy-storage module for being connected to power battery
Between, at least one switch is connected between the cathode of power battery and energy-storage module.
It can be there are many connection type, as one between the modules of power battery charging device provided in this embodiment
Kind embodiment, the first end and second end of first switch module 102 are separately connected the anode and cathode of power battery 101, the
First end, the first end and boost module of division module 104 of the third end connection energy-storage module 103 of one switch module 102
105 first end, the second of the 4th end connection second end of energy-storage module 103 of first switch module 102, division module 104
The third end of the second end at end, the second end of boost module 105 and the second module, division module 104 connects boost module 105
Third end, boost module 105 the 4th end connection second switch module 106 first end, the third end of the second module 106 and
4th end connects the anode and cathode of external power supply module 107, and control module 108 connects first switch module 102, second switch
The control terminal of module 106 and boost module 105.
For boost module, as an implementation, boost module 105 includes diode, controllable switch and inductance,
The cathode of diode is the first end of boost module 105, the input of the anode of diode, the first end of inductance and controllable switch
End is connected in the third end of boost module 105 altogether, and the output end of controllable switch is the second end of boost module 105, and the second of inductance
End is the 4th end of boost module 105, and the control terminal of controllable switch is the control terminal of boost module 105.
Controllable switch and inductance is arranged in present embodiment in boost module makes outside when control controllable switch is connected
Electric power source pair of module inductance charges, and when control controllable switch shutdown, makes external power supply module and inductance by diode to dynamic
Power battery discharges, and due to there is electric current output in inductance, realizes external power supply module to the boost charge of power battery.
Present embodiment makes the first end and second end of division module be separately connected energy-storage module by setting division module
First end and second end, and then the voltage on energy-storage module is divided by the sampling resistor in division module, is passed through
The third end of division module third end connection boost module is set, and boost module connects external power supply mould by second switch module
Block makes external power supply module acquire the virtual voltage of divider resistance by second switch module, makes external power supply module according to control
The target voltage values of sampling resistor and the virtual voltage of sampling resistor that molding block is sent determine whether to meet in preset standard
Charge condition exports electric current to boost module when meeting preset standard, i.e., is met using the partial pressure effect of sampling resistor pre-
Bidding standard in voltage interactive requirements, keep the control to power battery charging simpler, at the same be omitted in the prior art with
The capacitor of external power supply wired in parallel setting, reduces the cost of entire charging unit, and reduce the volume of charging unit.
Further, as a kind of embodiment of first switch module, first switch module 102 include third switch,
The first end and second end of 4th switch, the 5th switch and resistance, the third switch is respectively the first switch module
First end and third end, the resistance form branch after connect with the 5th switch, described in the both ends of the branch are separately connected
The first end and second end of third switch, as shown in Fig. 2, third switch first end and the first end of resistance are connected in first switch altogether
The first end of module 102, the first end of the 5th switch of second end connection of resistance, the second end of third switch and the 5th switch
Second end is connected in the third end of first switch module altogether, and the first end of the 4th switch is the second end of first switch module, and the 4th
The second end of switch is the 4th end of first switch module, the control terminal and the 5th of the control terminal of third switch, the 4th switch
The control terminal combination of switch constitutes the control terminal of first switch module 102.
It is arranged in present embodiment with capacitance connection after resistance is connected with the 5th switch, it is first when charging to capacitor
The 5th switch and the 4th switch are first connected, so that power battery is slowly charged to predeterminated voltage to capacitor by resistance, for example, power
The 80% of cell voltage, then connect third switch, by the voltage of capacitor charging to power battery, avoid it is too fast to capacitor charging,
Lead to the damage of capacitor.
Further, division module 104 includes first resistor and second resistance, and the first end of first resistor is division module
First end, the second end of first resistor and the first end of second resistance are connected in the third end of division module, second electricity altogether
The second end of resistance is the second end of the division module, and second resistance is sampling resistor, and first resistor and second resistance realize
To the partial pressure of voltage on energy-storage module.
Further, energy-storage module 103 is capacitor, and capacitor, first resistor and second resistance constitute electricity bleed-off circuit；
When power battery charging device and the power battery and the external power supply module disconnect, the first resistor and described the
Two resistance make the capacitor progress electricity release according to standard.
As shown in Fig. 2, energy-storage module 103 is capacitor C1, division module 104 includes first resistor R1 and second resistance R2,
Boost module 105 includes diode VD7, controllable switch VT7 and inductance L, and the first end of first resistor R1 connects first switch
The cathode of the first end of module 102, the first end of capacitor C1 and diode VD7, the second end connection second of first resistor R1
The first end of the first end of resistance R2, the anode of diode VD7 and controllable switch VT7, the second end connection of second resistance R2
The second end of first switch module 102, the second end of capacitor C1, the second end and external power supply module 107 of controllable switch VT7
Cathode, inductance L second end connection external power supply module 107 anode.
Wherein, first switch module 102 includes third switch K3, the 4th switch K4, the 5th switch K5 and resistance, third
Switch K3 first end connects the anode of power battery 101 with the first end of resistance, and the second end of resistance connects the of the 5th switch K5
One end, the second end of third switch K3 connect the first end of capacitor C1 with the second end of the 5th switch K5, and the of the 4th switch K4
One end connects the cathode of power battery 101, the second end of the second end connection capacitor C1 of the 4th switch K4, second switch module
106 include first switch K1 and second switch K2, the second end of the first end connection inductance L of first switch K1, first switch K1
Second end connection charging dress anode, second switch K2 second end connection external power supply module 107 cathode, second switch
The cathode of the second end connection external power supply module 107 of K2.
Wherein, first resistor R1 and second resistance R2 are set by division module 104, the detection of external power supply module 107 the
The actual voltage value of two resistance R2, then judgement is compared with the target voltage values of second resistance R2.
As another embodiment, boost module 105 includes three-phase inverter and three phase alternating current motor, three-phase inverter
Including three-phase bridge arm, every phase bridge arm includes the power switch unit of two connections, and the input terminal of every phase bridge arm is connected in boosting mould altogether
The first end of block 105, the output end of every phase bridge arm are connected in the second end of boost module, two power switch lists in every phase bridge arm altogether
The tie point of member is separately connected the three-phase coil of three phase alternating current motor, and the tie point of three-phase coil is the 4th end of boost module,
The tie point of two power switch units is the third end of boost module in any one phase bridge arm.
As shown in figure 3, energy-storage module 103 is capacitor C1, division module 104 includes first resistor and second resistance, boosting
Module 105 includes three-phase inverter, three phase alternating current motor and inductance L, and three-phase inverter includes three-phase bridge arm, every phase bridge arm packet
The power switch unit of two connections is included, the input terminal of every phase bridge arm connects altogether and connects the first end and capacitor C1 of first resistor R1
First end, the output end of every phase bridge arm connects altogether and connects the second end of second resistance R2, the second end of capacitor C1 and outside
The cathode of power module 107, the tie point of two power switch units is separately connected the three of three phase alternating current motor in every phase bridge arm
Phase coil, the first end for the middle line connection inductance L that the tie point of three-phase coil is drawn, the second end of inductance L connect external power supply
The anode of module 107, the second end of first resistor R1 and the first end of second resistance R2 are connected in any one bridge arm two altogether
The tie point of power switch unit.
For three-phase inverter, specifically, three-phase inverter includes the first power switch unit, the second power switch list
Member, third power switch unit, the 4th power switch unit, the 5th power switch and the 6th power switch, each power are opened
The control terminal link control module 108 of unit is closed, the first power switch unit, third power switch unit and the 5th power are opened
The input terminal for closing unit is connected in the first end of boost module 105 altogether, the second power switch unit, the 4th power switch unit and
The output end of 6th power switch unit connects altogether and connects the second end of boost module 105, the first phase line of three phase alternating current motor
The input terminal of circle the first power switch unit of connection and the input terminal of the 4th power switch unit, the second phase of three phase alternating current motor
Coil connects the input terminal of third power switch unit and the input terminal of the 6th power switch unit, the third of three phase alternating current motor
Phase coil connects the input terminal of the 5th power switch unit and the input terminal of the second power switch unit.
Wherein, the first power switch unit includes bridge diode on bridge arm VT1 and first on first in three-phase inverter
VD1, the second power switch unit include the lower bridge diode VD2 of the second lower bridge arm VT2 and second, and third power switch unit includes
Bridge diode VD3 in bridge arm VT3 and third in third, the 4th power switch unit include the lower bridges of the 4th lower bridge arm VT4 and the 4th
Diode VD4, the 5th power switch unit include bridge diode VD5, the 6th power switch list on bridge arm VT5 and the 5th on the 5th
Member includes the lower bridge diode VD6 of the 6th lower bridge arm VT6 and the 6th, and three phase alternating current motor 104 is three-phase four-wire system, can be permanent magnetism
Synchronous motor or asynchronous machine draw the neutral conductor, and the L connection of neutral conductor inductance, inductance L and first at three-phase coil connection midpoint
Switch K1 connection, the three-phase coil of three phase alternating current motor connect between A, B, C upper and lower bridge arm respectively and in three-phase inverter, the
One switch module 102 include third switch K3, the 4th switch K4, the 5th switch K5 and resistance, third switch K3 first end with
101 anode of first end connection power battery of resistance, the second end of resistance connect the first end of the 5th switch K5, third switch K3
Second end the first end of capacitor C1 is connected with the second end of the 5th switch K5, the first end of the 4th switch K4 connects power battery
101 cathode, the second end of the second end connection capacitor C1 of the 4th switch K4, second switch module 106 includes first switch K1
With second switch K2, the second end of the first end connection inductance L of first switch K1, the second end connection charging dress of first switch K1
Anode, the cathode of the second end connection external power supply module 107 of second switch K2, the second end of second switch K2 connects external
The cathode of power module 107.
Booster circuit, first resistor and second are formed in such a way that three phase alternating current motor N line is drawn in present embodiment
Resistance is connect altogether in the A phase line of three-phase inverter, and the partial pressure value of second resistance reaches charging by the A phase line and inductance of motor
Mouthful, the first resistor of division module and second resistance can also be connect in automatically controlled B phase or C phase, when external power supply module
Virtual voltage and target voltage in detection second resistance export electric current when meeting preset standard, at this point, control three-phase inverter
Lower bridge arm (the second lower bridge arm, the 4th lower bridge arm and the 6th lower bridge arm) conducting, make external power supply module to inductance and three-phase
The three-phase coil of alternating current generator charges, then control three-phase inverter lower bridge arm (the second lower bridge arm, the 4th lower bridge arm and
6th lower bridge arm) shutdown, make external power supply module, inductance, three phase alternating current motor, three-phase inverter upper bridge arm (bridge on first
Bridge diode on bridge diode and the 5th on diode, third), third switch, power battery and the 4th switch formed it is continuous
Road is flowed back to, external power supply module reuse three phase alternating current motor and three-phase inverter is realized and boost charge is carried out to power battery
Function.
Following embodiment wherein is please referred to the specific control method of control module:
The embodiment of the present application two provides a kind of charging method of power battery charging device provided based on embodiment one, real
The charging method of the offer of example two is applied for making external power supply module charge power battery, as shown in figure 4, charging method packet
It includes:
For step S101. when power battery charging device connects external power supply module, control module controls first switch mould
Block conducting, makes power battery charge to predeterminated voltage to energy-storage module.
In step s101, control first switch module makes power battery charge to predeterminated voltage to energy-storage module, then controls
First switch module processed makes power battery stop charging, since division module and energy-storage module are connected in parallel, is divided by setting
Divider resistance in module forms partial pressure value to the target voltage values of division module setting in division module.
Step S102. control module controls the conducting of second switch module, and sends in division module to external power module
The target voltage values of sampling resistor.
In step s 102, the conducting of control module control second switch module carries out information exchange with external power supply module,
Target voltage values in the division module being set in are sent to external power supply module, while control module is according to power battery
Current charging ability, such as charge power obtain target current value, which meets national standard GB/T 18488.2-2015
4.4 in power supply unit export current standard, and target current value is sent to external power supply module, makes external power supply module root
It is exported according to target current value.
The detection of step S103. external power supply module obtains the actual voltage value of sampling resistor in division module, and is determining
The target voltage values of sampling resistor and the actual voltage value of sampling resistor export electric current when meeting preset standard.
In step s 103, the actual voltage value of the target voltage values and sampling resistor that determine sampling resistor meets pre- bidding
Punctual output electric current, comprising:
Determine to meet when detecting the error between the target voltage values and actual voltage value of sampling resistor less than or equal to 5% pre-
Bidding is quasi-.
Wherein, according to B.3.4 middle non-on-board charger control device detects vehicle in national standard GB/T 18487.1-2015
Cell voltage and communication message battery voltage error range≤± 5% are held, external power supply module could be defeated when the criterion is met
Electric current out.
Further, as shown in figure 3, when divider resistance includes first resistor and second resistance, control module control the
The conducting of two switch modules, and target voltage values and target current value in external power module transmission division module, comprising:
Control module controls the conducting of second switch module, and sends the target voltage in second resistance to external power module
Value and target current value.
Step S104. control module exports target current value to power battery to power battery by control boost module
It charges.
In step S104, control module exports target current value to power to power battery by control boost module
Battery charges, comprising:
Control module obtains the actual current value of boost module output, and actual current value and target current value are carried out pair
Than making boost module export target current value to power electric to power battery by exporting pwm control signal to boost module
It charges in pond.
Wherein, when external power supply module output current, the power switch tube that control module controls in boost module is open-minded
When, inductive energy storage electric current increases, and when control power switch tube turns off, inductance freewheel current is reduced, by applying to power switch tube
Add PWM wave, turning on and off repeatedly will form DC current in inductance, and the size of the DC current is by off-board charging
The duty ratio of electromechanics pressure, cell voltage and PWM wave codetermines.Wherein cell voltage is uncontrollable, and non-on-board charger work exists
Under constant voltage mode, output voltage is controllable in a certain range, and non-on-board charger output voltage can be set as to the highest of its output
Value controls the size of charging current finally by the duty ratio for adjusting PWM, meets battery manager to the need of charging current
It asks.
Further, as shown in figure 3, the detection of external power supply module obtains the actual voltage value in division module, and sentencing
Determine to export electric current when target voltage values and actual voltage value in division module meet preset standard, comprising:
The detection of external power supply module obtains the actual voltage value in second resistance, and when the target voltage values in second resistance
Electric current is exported when meeting preset standard with actual voltage value.
The present embodiment is formed suitable voltage value in charge port, is supplied by the partial pressure effect of resistance in setting division module
The detection of external power supply module, meets the voltage detecting interactive requirements of national standard, and allows the work of external power supply module in constant pressure mould
Under formula, by carrying out boost charge function of the boosting completion to power battery, system knot to external power module by boost module
Structure is simple, and failure risk is low, and reduces cost.
The application another kind embodiment provides a kind of charging pile charging method, and charging pile connects the power in above-described embodiment
Battery charger, charging pile charging method include:
Step S210. receives the target voltage values of sampling resistor in the division module that power battery charging device is sent.
Step S211. obtains the actual voltage value of sampling resistor in division module, and in the target electricity for determining sampling resistor
It charges to boost module output electric current to power battery when the actual voltage value of pressure value and sampling resistor meets preset standard.
Wherein, charging pile is according to B.3.4 middle non-on-board charger control device detection in national standard GB/T 18487.1-2015
To vehicle end cell voltage and communication message battery voltage error range≤± 5%, external power supply module when the criterion is met
Electric current could be exported.
The target voltage values for the sampling resistor that charging pile is sent according to control module in the present embodiment and the reality of sampling resistor
Border voltage determines whether to meet the charge condition in preset standard, exports electric current to boost module when meeting preset standard, i.e.,
Voltage interactive requirements in preset standard are met using the partial pressure effect of sampling resistor, make control to power battery charging more
Add simply, ensure that the safety charged to vehicle.
The application another kind embodiment provides a kind of vehicle, and vehicle further includes power battery charging provided by the above embodiment
Device.
The application another kind embodiment provides a kind of DC charging protection system, and it includes that setting exists that DC charging, which protects system,
DC charging circuit in vehicle, DC charging circuit include the first switch module connecting with power battery, are filled with off-board
The second switch module of motor connection；
It includes the direct current power supply loop and non-on-board charger being arranged in non-on-board charger that DC charging, which protects system,
Controller；
DC charging circuit further include:
Capacitance module, capacitance module are used to receive the electric discharge of power battery in the conducting of first switch module；
Division module, for division module for dividing to the voltage on capacitance module, division module includes first resistor
And second resistance；
Boost module, boost module are used to carry out the voltage of direct current power supply loop output in the conducting of second switch module
Output obtains the actual voltage value of sampling resistor to power battery, non-on-board charger controller after boosting；
Vehicle control device, vehicle control device are used to control the on-off of first switch module and second switch module, and to non-
Vehicle-mounted charge machine controller sends the target voltage values of second resistance, and make non-on-board charger controller in target voltage values and
Direct current power supply loop is controlled when actual voltage value meets preset standard to discharge to DC charging circuit.
Division module is arranged in DC charging circuit in the present embodiment, is acted on by the partial pressure of sampling resistor in division module,
The target voltage values of sampling resistor are sent to non-on-board charger controller, and is formed and is closed in the charge port in DC charging circuit
Suitable voltage value, for the actual voltage value of non-on-board charger controller detection sampling resistor, the inspection of non-on-board charger controller
The actual voltage value and target voltage values for surveying sampling resistor meet the voltage B.3.4 required in national standard GB/T 18487.1-2015
Interactive requirements are detected, control direct current power supply loop discharges to DC charging circuit, ensure that direct current power supply loop electric discharge
Safety.
As shown in Figure 4, Figure 5 and Figure 6, the charging flow of DC charging protection system includes following when power battery low-voltage
Step:
Step 1: vehicle stops, and after charge port is inserted into charging gun, and wakes up associated vehicle controller and non-on-board charger
Controller.
Step 2: vehicle control device is closed the 5th switch K5 and the 4th switch K4, makes power battery to dc-link capacitance C1
Carry out preliminary filling.
Step 3: after vehicle control device detects that DC bus-bar voltage is charged to certain voltage in advance, being closed third switch K3, so
The 5th switch K5 is disconnected afterwards, connects power battery and boost module.
Step 4: vehicle control device calculates the partial pressure value in second resistance according to the intrinsic standoff ratio of first resistor and second resistance
U0。
Step 5: closure charge switch first switch K1 and second switch K2, vehicle control device and non-on-board charger control
Device interaction, vehicle control device send charge port voltage U0 (i.e. communication message battery to non-on-board charger controller by CAN line
Voltage).
Step 6: non-on-board charger controller samples charge port voltage U0 ', the voltage then sent with vehicle control device
U0 comparison, detects U0 and U0 ' error meet national standard GB/T 18487.1-2015 B.3.4 in requirement ± %5 requirement
Afterwards, it is closed contactor K7 and K8 in its direct current power supply loop, connects entire charge circuit.
Step 7: vehicle control device is according to 10.3.1PGN4096 battery charge requirement message in GB/T27930-2015
(BCL) definition in, it is 0x01 that charge mode position, which is sent, allows non-on-board charger work under constant voltage mode, and is exported specified
Voltage Uout.
Step 8: vehicle control device sends charging current to boost module according to the practical charging ability of battery.
Step 9: in the inductive energy storage stage, as shown in figure 5, vehicle control device control power switch tube VT1 conducting, electric current is by non-
The outflow of Vehicular charger anode, successively reaches non-vehicle by first switch K1, inductance L, power switch tube VT1 and second switch K2
Carry charger cathode.
Step 10: the inductive discharge stage, as shown in fig. 6, vehicle control device control power switch tube VT1 disconnect, electric current by
The outflow of non-on-board charger anode, successively passes through first switch K1, and inductance L, freewheeling diode VD7 and third switch K3 reach electricity
Then pond anode flows back into non-on-board charger cathode by the 4th switch K4 and second switch K2, vehicle control device is by giving
Controllable switch VT7 apply PWM wave, allow power switch tube recycle turn on and off, the charging current of battery can be formed, passed through
PWM wave is adjusted in the size of duty cycle adjustment charging current, meets the needs of battery manager is to charging current.
Step 11: vehicle control device controls the duty ratio of PWM wave, adjusts charging current to instruction value.
Step 12: after charging complete, vehicle control device, which sends instruction, allows boost module to stop working.
Step 13: boost module reduces charging current to 0A, is then shut off PWM wave.
Step 14: vehicle control device disconnects first switch K1 and second switch K2, and sends and stop to non-on-board charger
Instruction.
Step 15: vehicle control device disconnects charge switch third switch K3 and the 4th switch K4, instruction of releasing is sent, to electricity
Hold C1 actively release, and according in the 5.5.3 of national standard GB/T18488.1-2015, the discharge time of capacitor C1 is no more than
3S passively releases to capacitor C1 by first resistor R1 and second resistance R2, and according to national standard GB/T18488.1-
The time of passively releasing of Support Capacitor should be not more than 5min in 2015 5.5.3.
Step 13: charging terminates.
Above embodiments are only to illustrate the technical solution of the application, rather than its limitations；Although with reference to the foregoing embodiments
The application is described in detail, those skilled in the art should understand that: it still can be to aforementioned each implementation
Technical solution documented by example is modified or equivalent replacement of some of the technical features；And these modification or
Replacement, the spirit and scope of each embodiment technical solution of the application that it does not separate the essence of the corresponding technical solution should all include
Within the scope of protection of this application.
Claims (10)
1. a kind of power battery charging device, which is characterized in that the power battery charging device includes control module, first opens
Close module, energy-storage module, division module, boost module and second switch module, the first end of the first switch module and
Second end is separately connected the anode and cathode of power battery, and the third end of the first switch module connects the energy-storage module
The first end of first end, the first end of the division module and the boost module, the 4th end of the first switch module
Connect the second end of the energy-storage module, the second end of the division module, the second end of the boost module and described
The third end of the second end of two switch modules, the division module connects the third end of the boost module, the boost module
The 4th end connect the first end of the second switch module, the third end of the second switch module connects external with the 4th end
The anode and cathode of power module, the control module connect the first switch module, the second switch module and described
The control terminal of boost module.
2. power battery charging device as described in claim 1, which is characterized in that the first switch module includes that third is opened
The first end and second end of pass, the 4th switch, the 5th switch and resistance, the third switch is respectively the first switch mould
The first end of block and third end, the resistance form branch after connecting with the 5th switch, and the both ends of the branch are separately connected institute
The first end and second end of third switch is stated, the second end that the second end of the third switch and the described 5th switch is connected in institute altogether
The third end of first switch module is stated, the first end of the 4th switch is the second end of the first switch module, the 4th switch
Second end is the 4th end of the first switch module, the control terminal of third switch, the control terminal of the 4th switch with
And the control terminal combination of the 5th switch constitutes the control terminal of the first switch module.
3. power battery charging device as described in claim 1, which is characterized in that the division module include first resistor and
Second resistance, the first end of the first resistor are the first end of the division module, the second end of the first resistor and institute
The first end for stating second resistance is connected in the third end of the division module altogether, and the second end of the second resistance is the partial pressure mould
The second end of block, the second resistance are sampling resistor.
4. power battery charging device as described in claim 1, which is characterized in that the boost module includes diode, can
Control switch and inductance, the cathode of the diode are the first end of the boost module, the anode of the diode, the electricity
The input terminal of the first end of sense and the controllable switch is connected in the third end of the boost module altogether, the controllable switch it is defeated
Outlet is the second end of the boost module, and the second end of the inductance is the 4th end of the boost module, described controllably to open
The control terminal of pass is the control terminal of the boost module.
5. power battery charging device as described in claim 1, which is characterized in that the boost module includes three-phase inverter
And three phase alternating current motor, the three-phase inverter include three-phase bridge arm, every phase bridge arm includes the power switch unit of two connections,
The input terminal of every phase bridge arm is connected in the first end of the boost module altogether, and the output end of every phase bridge arm is connected in the boost module altogether
Second end, the tie point of two power switch units is separately connected the triple line of the three phase alternating current motor in every phase bridge arm
Circle, the tie point of the three-phase coil are the 4th end of the boost module, two power switch units in any one phase bridge arm
Tie point be the boost module third end.
6. power battery charging device as described in claim 1, which is characterized in that the second switch module is opened including first
It closes and second switch, the first end and second end of the first switch is the first end of the respectively second switch module
With third end, the first end and second end of the second switch is described be respectively the second switch module second end and the
Four ends.
7. power battery charging device as described in claim 1, which is characterized in that the energy-storage module is capacitor, the electricity
The first end and second end of appearance is respectively the first end and second end of the energy-storage module.
8. power battery charging device as described in claim 1, which is characterized in that the energy-storage module is capacitor, the electricity
The first end and second end of appearance is respectively the first end and second end of the energy-storage module；The division module includes first resistor
And second resistance, the first end of the first resistor are the first end of the division module, the first end of the first resistor with
The first end of the second resistance is connected in the third end of the division module altogether, and the second end of the second resistance is the partial pressure
The second end of module；The boost module includes diode, controllable switch and inductance, and the cathode of the diode is the liter
The input terminal of the first end of die block, the anode of the diode, the first end of the inductance and the controllable switch connects altogether
For the third end of the boost module, the output end of the controllable switch is the second end of the boost module, the inductance
Second end is the 4th end of the boost module, and the control terminal of the controllable switch is the control terminal of the boost module.
9. a kind of vehicle, which is characterized in that the vehicle further includes that power battery described in claim 1 to 8 any one fills
Electric installation.
10. a kind of DC charging protects system, which is characterized in that the DC charging protection system includes provided in a vehicle
DC charging circuit, the DC charging circuit includes the first switch module connecting with power battery, with non-on-board charger
The second switch module of connection；
The DC charging protection system includes the direct current power supply loop and non-on-board charger being arranged in non-on-board charger
Controller；
The DC charging circuit further include:
Capacitance module, the capacitance module are used to receive the electric discharge of the power battery in first switch module conducting；
Division module, for dividing to the voltage on the capacitance module, the division module includes the division module
First resistor and second resistance；
Boost module, the boost module are used for the externally direct current power supply loop output in second switch module conducting
Voltage boosted after output to power battery, the non-on-board charger controller obtains the practical electricity of the second resistance
Pressure value；
Vehicle control device, the vehicle control device are used to control the on-off of the first switch module and second switch module, and
The target voltage values of the second resistance are sent to the non-on-board charger controller, and control the non-on-board charger
Device controls the direct current power supply loop when the target voltage values and the actual voltage value meet preset standard to described straight
It discharges in current charge circuit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201822166029.3U CN209479442U (en) | 2018-12-21 | 2018-12-21 | Vehicle, power battery charging device and DC charging protect system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822166029.3U CN209479442U (en) | 2018-12-21 | 2018-12-21 | Vehicle, power battery charging device and DC charging protect system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111404245A (en) * | 2020-06-04 | 2020-07-10 | 比亚迪股份有限公司 | Energy conversion device and safety control method thereof |
| CN112793437A (en) * | 2020-12-30 | 2021-05-14 | 重庆金康赛力斯新能源汽车设计院有限公司 | Direct-current charging contactor, ultrahigh-voltage electric vehicle and power battery charging method |
| CN113043870A (en) * | 2021-04-30 | 2021-06-29 | 重庆长安新能源汽车科技有限公司 | Power battery charging system and electric automobile |
| CN113067530A (en) * | 2019-12-31 | 2021-07-02 | 比亚迪股份有限公司 | Energy conversion device and vehicle |
| CN114683955A (en) * | 2022-04-08 | 2022-07-01 | 重庆金康赛力斯新能源汽车设计院有限公司 | Boost control device and method and related equipment |
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2018
- 2018-12-21 CN CN201822166029.3U patent/CN209479442U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113067530A (en) * | 2019-12-31 | 2021-07-02 | 比亚迪股份有限公司 | Energy conversion device and vehicle |
| CN111404245A (en) * | 2020-06-04 | 2020-07-10 | 比亚迪股份有限公司 | Energy conversion device and safety control method thereof |
| CN112793437A (en) * | 2020-12-30 | 2021-05-14 | 重庆金康赛力斯新能源汽车设计院有限公司 | Direct-current charging contactor, ultrahigh-voltage electric vehicle and power battery charging method |
| CN113043870A (en) * | 2021-04-30 | 2021-06-29 | 重庆长安新能源汽车科技有限公司 | Power battery charging system and electric automobile |
| CN113043870B (en) * | 2021-04-30 | 2022-05-31 | 重庆长安新能源汽车科技有限公司 | Power battery charging system and electric automobile |
| CN114683955A (en) * | 2022-04-08 | 2022-07-01 | 重庆金康赛力斯新能源汽车设计院有限公司 | Boost control device and method and related equipment |
| CN114683955B (en) * | 2022-04-08 | 2024-04-19 | 重庆金康赛力斯新能源汽车设计院有限公司 | Boost control device and method and related equipment |
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