CN208707522U - DC voltage converting system for electric car - Google Patents
DC voltage converting system for electric car Download PDFInfo
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- CN208707522U CN208707522U CN201821646834.XU CN201821646834U CN208707522U CN 208707522 U CN208707522 U CN 208707522U CN 201821646834 U CN201821646834 U CN 201821646834U CN 208707522 U CN208707522 U CN 208707522U
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Abstract
The utility model provides a kind of DC voltage converting system for electric car, wherein system includes: entire car controller；High voltage power supply, for providing electric energy to driving load；Low-tension supply is connect with the entire car controller, for providing electric energy to vehicle low-voltage load；Electric pressure converter is connect with the entire car controller, the high voltage power supply and the low-tension supply, for realizing that the high voltage power supply provides electric energy for the low-tension supply and/or the vehicle low-voltage load under the control of the entire car controller.The utility model avoids low pressure baby battery from damaging due to power shortage, extends the service life of low pressure baby battery.
Description
Technical field
The utility model relates to New-energy electric vehicle power management techniques, more particularly to are suitable for New-energy electric vehicle
DC/DC electric pressure converter (dc voltage changer), be specifically exactly that a kind of DC voltage for electric car is converted
System.
Background technique
The energy and environmental issue have become in current world economy development process distinct issues the most, and influence me
One of most important factor of state's strategy of sustainable development.In recent years, with the increasingly reduction of world energy sources resource and car tail
Gas bring problem of environmental pollution highlights, and the development of orthodox car is restricted, on the contrary, the development of new-energy automobile receives
More and more by the attention of national governments.Currently, developing great attention of the new-energy automobile by various countries, equally, China
Government also vigorously supports the development of new-energy automobile.
Under normal conditions, pure electric vehicle new-energy automobile includes two power supply systems of high voltage power supply and low voltage electric power system
System.Wherein, high voltage power supply mainly provides energy to vehicle drive system, for example, to driving motor and interior air-conditioning system
Energy is provided；Low voltage electric power system is for providing electric energy to vehicle low-voltage load (i.e. vehicle low-voltage load system), for example, lamp
Photosystem, audio-video system etc..In order to provide energy to low-voltage-powered battery (i.e. low pressure baby battery) and vehicle low-voltage load system
Amount, New-energy electric vehicle will be installed a dc voltage changer (DC/DC electric pressure converter), for changing high voltage power supply dress
Energy is provided at low-tension supply for low pressure baby battery and vehicle low-voltage load system.
In the prior art, only power supply exports the DC/DC electric pressure converter that New-energy electric vehicle uses all the way, the power supply
Output is connect with vehicle low-voltage load system, low pressure baby battery, and after vehicle ignition switch is opened, DC/DC electric pressure converter is
Can work, and then for vehicle low-voltage load system provide energy and be low pressure baby battery supplement energy.In realizing use process,
When vehicle after a long time placement, after low pressure baby battery power shortage how electric energy supplement the problem of.Such as: when New-energy electric vehicle because
It is placed for a long time for certain reasons, vehicle low-voltage load system needs low pressure baby battery to provide memory power supply, and the small electricity of low pressure
The problem of there is also self discharges in pond, so, low pressure baby battery will lose after New-energy electric vehicle places a period of time
Electricity will result in low pressure baby battery permanent damage if electricity cannot be mended for low pressure baby battery for a long time.
In addition, because the output power of DC/DC electric pressure converter is larger (general output power is at 1000 watts or so), in order to
Meet that DC/DC electric pressure converter output power, electric current be big, the higher demand of temperature rise, output interface generally uses a power
Biggish connector satisfies the use demand.But DC/DC electric pressure converter output interface is patched using a power is biggish
Part satisfies the use demand, and connector current density, volume and higher cost, craftsmanship is poor, inside DC/DC electric pressure converter
The temperature rise of circuit will be very high, and then reduces the service life of DC/DC electric pressure converter.
Therefore, those skilled in the art need to research and develop a kind of DC/DC voltage conversion system suitable for electric car, prevent
While low pressure baby battery long-term power shortage, extend the service life of DC/DC electric pressure converter.
Summary of the invention
In view of this, the technical problem to be solved by the present invention is to provide a kind of DC voltages for electric car
Converting system solves the problems, such as that prior art mesolow baby battery is easy power shortage after a long time placement and damages, also solves
The problem that existing DC/DC electric pressure converter is at high cost, service life is short.
In order to solve the above-mentioned technical problem, specific embodiment of the present utility model provides a kind of for the straight of electric car
Flow voltage conversion system, comprising: entire car controller；High voltage power supply, for providing electric energy to driving load；Low-tension supply, with institute
Entire car controller connection is stated, for providing electric energy to vehicle low-voltage load；Electric pressure converter, with the entire car controller, described
High voltage power supply is connected with the low-tension supply, for realizing that the high voltage power supply is described under the control of the entire car controller
Low-tension supply and/or the vehicle low-voltage load provide electric energy.
Further, for the DC voltage converting system of electric car further include: the first output connector is arranged in institute
It states between electric pressure converter and the low-tension supply；The second output connector being connected in parallel with first output connector,
It is arranged between the electric pressure converter and the low-tension supply.
Wherein, the entire car controller includes: data acquisition unit, is connect with the low-tension supply, electronic for acquiring
The temperature of the ignition lock state information of automobile, the current voltage of the low-tension supply and the electric pressure converter；Control is single
Member is connect with the electric pressure converter, for controlling the electricity according to the ignition lock state information and the current voltage
Pressure converter provides electric energy for the low-tension supply and/or the vehicle low-voltage load.
Further, the entire car controller further include: CAN interface, setting turn in described control unit and the voltage
Between parallel operation, the electric pressure converter is controlled by CAN bus for described control unit.
Wherein, the electric pressure converter is DC/DC electric pressure converter；The low-tension supply is low pressure baby battery.
Wherein, described control unit is connect by enabled control line with the electric pressure converter.
Wherein, the data acquisition unit is digital voltmeter.
Wherein, described control unit is vehicle-mounted computer.
Wherein, the electric pressure converter is exported electric energy in a manner of constant voltage and current limiting or exports electric energy according to bearing power.
Wherein, the voltage when electric pressure converter exports electric energy in a manner of constant voltage and current limiting is 13.5V~13.8V, electric current
For 4A~6A.
Above-mentioned specific embodiment according to the present utility model is it is found that be used for the DC voltage converting system of electric car extremely
Have the advantages that entire car controller (VCU) controls DC/DC in the state of the ignition switch of electric car opening less
Electric pressure converter exports electric energy according to load power demand, meets the power demand of vehicle low-voltage load system, and it is small to extend low pressure
The service life of battery (low-tension supply)；Under the ignition switch closed state of electric car, entire car controller detects low pressure
When baby battery requires supplementation with electricity, the not enabled output of vehicle control unit controls DC/DC electric pressure converter is in a manner of constant voltage and current limiting
Low pressure baby battery supplements electricity；Under the ignition switch open state of electric car, the conversion of vehicle control unit controls DC/DC voltage
Device provides electric energy according to the enabled output of load power demand for vehicle low-voltage load, and supplements electricity for low pressure baby battery；Point
In the case that fire switch is opened, and low-tension supply not power shortage when, low-tension supply and electric pressure converter are that vehicle low pressure is negative simultaneously
Carry power supply.The output connector being connected in parallel using two substitutes original high-power connector, not only reduces process costs, but also mention
The high service life of DC/DC electric pressure converter.
It is to be understood that above-mentioned general description and following specific embodiments are merely illustrative and illustrative, not
The range to be advocated of the utility model can be limited.
Detailed description of the invention
Following appended attached drawing is the part of specification of the utility model, and the example for depicting the utility model is real
Example is applied, appended attached drawing is used to illustrate the principles of the present invention together with the description of specification.
Fig. 1 is a kind of DC voltage converting system for electric car that specific embodiment of the present invention provides
The composition schematic diagram of embodiment one.
Fig. 2 is a kind of DC voltage converting system for electric car that specific embodiment of the present invention provides
The composition schematic diagram of embodiment two.
Fig. 3 is a kind of DC voltage converting system for electric car that specific embodiment of the present invention provides
The composition schematic diagram of embodiment three.
Fig. 4 is a kind of DC voltage converting system for electric car that specific embodiment of the present invention provides
The composition schematic diagram of example IV.
Fig. 5 is a kind of DC voltage converting system for electric car that specific embodiment of the present invention provides
The flow chart of the embodiment one of control method.
Fig. 6 is a kind of DC voltage converting system for electric car that specific embodiment of the present invention provides
The flow chart of the embodiment two of control method.
Description of symbols:
1 entire car controller, 2 high voltage power supply
3 low-tension supply, 4 electric pressure converter
5 first output connector, 6 second output connector
11 data acquisition unit, 12 control unit
13 CAN interface L CAN bus
M driving load
C enables control line RL vehicle low-voltage load
Specific embodiment
For the objectives, technical solutions, and advantages of the embodiments of the present invention are more clearly understood, below will with attached drawing and
The spirit for clearly illustrating the utility model disclosure is described in detail, and any skilled artisan is understanding this reality
After the embodiment of new content, when the technology that can be taught by the content of the present invention, it is changed and modifies, do not take off
Spirit and scope from the content of the present invention.
The exemplary embodiment of the utility model and the description thereof are used to explain the utility model, but is not intended as practical to this
Novel restriction.In addition, in the drawings and embodiments the use of element/component of same or like label is for representing phase
Same or similar portions.
About " first " used herein, " second " ... etc., not especially censure the meaning of order or cis-position,
It is non-to limit the utility model, only for distinguish with same technique term description element or operation.
About direction term used herein, such as: upper and lower, left and right, front or rear etc. are only the sides with reference to attached drawing
To.Therefore, the direction term used is intended to be illustrative and not intended to limit this creation.
It is open term, i.e., about "comprising" used herein, " comprising ", " having ", " containing " etc.
Mean including but not limited to.
About it is used herein " and/or ", including any of the things or all combination.
It include " two " and " two or more " about " multiple " herein；It include " two groups " about " multiple groups " herein
And " more than two ".
About term used herein " substantially ", " about " etc., to modify it is any can be with the quantity or mistake of microvariations
Difference, but this slight variations or error can't change its essence.In general, microvariations that such term is modified or error
Range in some embodiments can be 20%, in some embodiments can be 10%, can be in some embodiments 5% or its
His numerical value.It will be understood by those skilled in the art that the aforementioned numerical value referred to can be adjusted according to actual demand, it is not limited thereto.
Fig. 1 is a kind of DC voltage converting system for electric car that specific embodiment of the present invention provides
The composition schematic diagram of embodiment one as shown in Figure 1, vehicle control unit controls high voltage power supply gives driving load supplying, and controls low
Voltage source give vehicle low-voltage load power supply, also control electric pressure converter by the high-voltage electricity of high voltage power supply be converted to low tension supply it is low
Voltage source and/or vehicle low-voltage load.In the specific embodiment shown in the drawings, the DC voltage for electric car is converted
System includes entire car controller VCU1, high voltage power supply 2, low-tension supply 3 and electric pressure converter 4.Wherein, high voltage power supply 2 passes through electricity
Pressure converter 4 is connect with the entire car controller 1, and high voltage power supply 2 is used to provide electric energy to driving load M；Low-tension supply 3 and institute
The connection of entire car controller 1 is stated, low-tension supply 3 is used to provide electric energy to vehicle low-voltage load RL；Electric pressure converter 4 and the vehicle
Controller 1, the high voltage power supply 2 and the low-tension supply 3 connect, and electric pressure converter 4 is used for the control in the entire car controller 1
System is lower to realize that the high voltage power supply 2 provides electric energy for the low-tension supply 3 and/or the vehicle low-voltage load RL, specifically includes:
It is whole when entire car controller 1 detects that low pressure baby battery 3 requires supplementation with electricity under the ignition switch closed state of electric car
Vehicle controller 1 controls the not enabled output of DC/DC electric pressure converter 4 and supplements electricity by low pressure baby battery 3 of constant voltage and current limiting mode；?
Under the ignition switch open state of electric car, entire car controller 1 controls DC/DC electric pressure converter 4 according to load power demand
Enabled output provides electric energy for vehicle low-voltage load RL, and supplements electricity for low pressure baby battery 3；The case where ignition switch is opened
Under, and low pressure baby battery 3 not power shortage when, DC/DC electric pressure converter 4 is according to the enabled output of load power demand and the small electricity of low pressure
Pond 3 powers simultaneously for vehicle low-voltage load RL.
In the embodiments of the present invention, electric pressure converter 4 can be DC/DC electric pressure converter, DC/DC electric pressure converter
It can carry out high-low voltage conversion；Low-tension supply 3 can be low pressure baby battery；Driving load M includes that driving motor and car are empty
Adjust etc.；Vehicle low-voltage load RL includes lighting system and sound system etc..
Referring to Fig. 1, electric pressure converter 4 converts the high voltage direct current of high voltage power supply 2 under the control of entire car controller 1
Low-tension supply 3 and/or the vehicle low-voltage load RL are supplied for low-voltage DC, prevents electric car since long-time is placed,
Since the self discharge of low pressure baby battery and vehicle low-voltage load RL (vehicle low-voltage load system) need to remember power supply and cause low pressure small
The long-term power shortage of battery, the case where causing low pressure baby battery permanent damages generation changes existing equipment small, realizes simple, user
Experience Degree is high.
Fig. 2 is a kind of DC voltage converting system for electric car that specific embodiment of the present invention provides
The composition schematic diagram of embodiment two, as shown in Fig. 2, being patched using two output connectors being connected in parallel substitutions one are high-power
Part, the current density of connector are low, small in size, at low cost.
In the specific embodiment shown in the drawings, the DC voltage converting system for electric car further includes first defeated
Connector 5 and the second output connector 6 out.Wherein, the setting of the first output connector 5 is in the electric pressure converter 4 and described low
Between voltage source 3；Second output connector 6 is connected in parallel with first output connector 5, the setting of the second output connector 6
Between the electric pressure converter 4 and the low-tension supply 3.
Referring to fig. 2, sharp in the prior art since the output power of electric pressure converter 4 is larger (usual output power is 1KW)
It is connected between electric pressure converter 4 and low-tension supply 3 with a high-power connector, due to the transmission electric current of high-power connector
Greatly, Wen Shenggao, technique is with high requirements and high cost, and is easily damaged；It is substituted with two output connectors being connected in parallel one big
Power connector, the current density of connector reduces, volume becomes smaller, and required technique also reduces, and consequent is cost
It reduces, and is hardly damaged, long service life.
Fig. 3 is a kind of DC voltage converting system for electric car that specific embodiment of the present invention provides
The composition schematic diagram of embodiment three, as shown in figure 3, the ignition switch of the data acquisition unit acquisition electric car of entire car controller
The control unit of the current voltage of state and low-tension supply, entire car controller controls electricity according to ignition lock state and current voltage
Pressure converter provides electric energy for low-tension supply and/or vehicle low-voltage load.
In the specific embodiment shown in the drawings, the entire car controller 1 includes that data acquisition unit 11 and control are single
Member 12.Wherein, data acquisition unit 11 is connect with the low-tension supply 3, and data acquisition unit 11 is for acquiring electric car
The temperature of ignition lock state information, the current voltage of the low-tension supply 3 and the electric pressure converter 4；Control unit 12
It is connect with the electric pressure converter 4, control unit 12 is used for according to the ignition lock state information and the current voltage control
It makes the electric pressure converter 4 and provides electric energy for the low-tension supply 3 and/or the vehicle low-voltage load RL.The utility model
In embodiment, control unit 12 is connect by enabled control line C with the electric pressure converter 4, and the electric pressure converter 4 is DC/
DC voltage converter；Data acquisition unit 11 is digital voltmeter；Control unit 12 is vehicle-mounted computer；The low-tension supply 3 is
Low pressure baby battery.If the enabled control line C of the electric pressure converter is enabled, the electric pressure converter is according to bearing power need
Output electric energy is sought, then the electric pressure converter is according to the small electricity of low pressure when the enabled control line C of the electric pressure converter is not enabled
The state in pond exports electric energy in a manner of constant voltage and current limiting.When electric car ignition lock state open in the case where, full-vehicle control
Device 1 is issued to electric pressure converter 4 by enabled control line C and is instructed, it is made to export electric energy (for example, making according to load power demand
Can control line C it is enabled when, output electric current is set as 35A ± 1A), meet the power consumption demand of vehicle low-voltage load RL, reduce low pressure
The discharge current of baby battery (low-tension supply), makes low pressure baby battery not discharge or discharge less as far as possible, and battery capacity is made to be in full
Electricity condition extends the service life of low pressure baby battery；When electric car is in the case where ignition lock state is closed, when vehicle control
When device 1 processed detects that electric car low pressure baby battery requires supplementation with electricity by data acquisition unit 11, vehicle control controller is logical
It crosses enabled control line C and issues instruction to electric pressure converter 4, it is made to export low current low pressure baby battery benefit in a manner of constant voltage and current limiting
Charge volume (for example, when enabled control line C is not enabled, output voltage is 13.5V~13.8V, and output electric current is 4A~6A), avoids
Low pressure baby battery is damaged due to normal phase power shortage, and the output voltage and output electric current of above-mentioned electric pressure converter 4 are only reference data,
User can according to need the output voltage of adjustment electric pressure converter 4 and output electric current, the utility model are not limited.
Referring to Fig. 3, when the ignition switch of electric car is opened, entire car controller 1 controls electric pressure converter 4 according to load
Power demand exports electric energy, meets the power demand of vehicle low-voltage load RL, extends the service life of low-tension supply 3；In battery
When the ignition switch of automobile is closed, entire car controller 1 detects that the voltage of low-tension supply 3 is lower than threshold value, when requiring supplementation with electricity,
Entire car controller 1 control electric pressure converter 4 using constant voltage and current limiting mode be low-tension supply 3 supplement electricity, avoid low-tension supply 3 due to
Long-term power shortage and damage, extend the service life of low-tension supply 3.
Fig. 4 is a kind of DC voltage converting system for electric car that specific embodiment of the present invention provides
The composition schematic diagram of example IV, as shown in figure 4, can be entire car controller when electric pressure converter has the function of CAN bus
CAN interface is configured, the communication between entire car controller and electric pressure converter is realized by CAN bus, instead of enabling control line
Function meets the needs of system function.
In the specific embodiment shown in the drawings, the entire car controller 1 further includes CAN interface 13.Wherein, CAN connects
Mouth 13 is arranged between described control unit 12 and the electric pressure converter 4, and CAN interface 13 passes through for described control unit 12
CAN bus L controls the electric pressure converter 4.
Referring to fig. 4, the communication between control unit 12 and electric pressure converter 4, compatible existing electricity are realized using CAN bus L
The communication mode of electrical automobile does not need to carry out protocol conversion to the communication data of existing electric car, realizes simple, cost of implementation
It is low.
Fig. 5 is a kind of DC voltage converting system for electric car that specific embodiment of the present invention provides
The flow chart of the embodiment one of control method, as shown in figure 5, entire car controller is according to the state of electric car ignition switch and low
The high voltage electric energy of high voltage power supply is converted to low-voltage electric energy and is supplied to low tension by the current voltage of voltage source, control electric pressure converter
Source and/or vehicle low-voltage load.
In the specific embodiment shown in the drawings, the control method packet of the DC voltage converting system for electric car
It includes:
Step 101: acquiring the ignition lock state information of electric car and the current voltage of low-tension supply.The utility model
Embodiment in, ignition lock state information indicate ignition switch state be specifically open, or close.
Step 102: being described low according to the ignition lock state information and current voltage control electric pressure converter
Voltage source and/or vehicle low-voltage load provide electric energy.In the embodiments of the present invention, the instruction igniting of ignition lock state information
The state of switch is specifically when opening, and electric pressure converter provides electric energy for low-tension supply and vehicle low-voltage load；Ignition switch shape
State information indicates that the state of ignition switch is specifically to close, and the current voltage of low-tension supply is lower than threshold value (voltage threshold)
When, electric pressure converter provides electric energy for vehicle low-voltage load.
Referring to Fig. 5, voltage is controlled according to the current voltage of the ignition switch state in which of electric car and low-tension supply
Converter provides electric energy for low-tension supply and/or vehicle low-voltage load, prevents the long-term power shortage of low-tension supply and damages.
Fig. 6 is a kind of DC voltage converting system for electric car that specific embodiment of the present invention provides
The flow chart of the embodiment two of control method, as shown in fig. 6, according to the current voltage of ignition lock state information and low-tension supply
It controls electric pressure converter and provides electric energy for low-tension supply and/or vehicle low-voltage load.
In the specific embodiment shown in the drawings, step 102 is specifically included:
Step 1021: the open and-shut mode of ignition switch is judged according to the ignition lock state information.The utility model
In embodiment, ignition lock state information indicates the opening and closing of ignition switch.
Step 1022: when ignition lock state information instruction ignition switch is opened, controlling the electric pressure converter
Electric energy, which is exported, according to load power demand provides electric energy to the low-tension supply and vehicle low-voltage load.The implementation of the utility model
In example, when the electric pressure converter exports electric energy according to load power demand, the enabled control line of the electric pressure converter is enabled
Output.If the enabled control line of electric pressure converter enables output, electric pressure converter exports electric energy according to load power demand,
When so the enabled control line of electric pressure converter is not enabled, electric pressure converter exports electric energy in a manner of constant voltage and current limiting.
Step 1023: when ignition lock state information instruction ignition switch is closed, further judging described current
Whether voltage is less than voltage threshold.
Step 1024: when the current voltage is less than the voltage threshold, controlling the electric pressure converter and limited with constant pressure
Stream mode provides electric energy to the low-tension supply.In the embodiments of the present invention, the electric pressure converter is with constant voltage and current limiting side
When formula exports electric energy, the enabled control line of the electric pressure converter is not enabled.
Step 1025: when the current voltage is equal to the voltage threshold, controlling the electric pressure converter and stop as institute
It states low-tension supply and the vehicle low-voltage load provides electric energy；When being less than the voltage threshold such as current voltage, the electricity is controlled
Pressure converter continues as the low-tension supply and the vehicle low-voltage load provides electric energy.
Step 1026: when the current voltage is greater than or equal to the voltage threshold, controlling the electric pressure converter and stop
Only electric energy is provided for the low-tension supply and the vehicle low-voltage load.
Referring to Fig. 6, electric pressure converter is controlled according to the current voltage of the ignition lock state of electric car and low-tension supply
Electric energy is provided for low-tension supply and/or vehicle low-voltage load, solves electric car because of the placement for a long time of certain reasons, low tension
The problem of source (low pressure baby battery) causes power shortage to damage after placing a period of time.
The above descriptions are merely exemplary embodiments of the present utility model, in the design that does not depart from the utility model and
Under the premise of principle, the equivalent changes and modifications that any those skilled in the art is made should belong to the utility model guarantor
The range of shield.
Claims (10)
1. a kind of DC voltage converting system for electric car, which is characterized in that the system includes:
Entire car controller (1)；
High voltage power supply (2), for providing electric energy to driving load (M)；
Low-tension supply (3) is connect with the entire car controller (1), for providing electric energy to vehicle low-voltage load (RL)；And
Electric pressure converter (4) is connect with the entire car controller (1), the high voltage power supply (2) and the low-tension supply (3), is used
Realize that the high voltage power supply (2) are the low-tension supply (3) and/or described whole under the control in the entire car controller (1)
Vehicle low-voltage load (RL) provides electric energy.
2. being used for the DC voltage converting system of electric car as described in claim 1, which is characterized in that the system is also wrapped
It includes:
First output connector (5) is arranged between the electric pressure converter (4) and the low-tension supply (3)；And
The second output connector (6) being connected in parallel with first output connector (5) is arranged in the electric pressure converter
(4) between the low-tension supply (3).
3. being used for the DC voltage converting system of electric car as described in claim 1, which is characterized in that the full-vehicle control
Device (1) includes:
Data acquisition unit (11) is connect with the low-tension supply (3), and the ignition lock state for acquiring electric car is believed
The temperature of breath, the current voltage of the low-tension supply (3) and the electric pressure converter (4)；And
Control unit (12) is connect with the electric pressure converter (4), for according to the ignition lock state information and described working as
It is the low-tension supply (3) and/or the vehicle low-voltage load (RL) offer electricity that preceding voltage, which controls the electric pressure converter (4),
Energy.
4. being used for the DC voltage converting system of electric car as claimed in claim 3, which is characterized in that the full-vehicle control
Device (1) further include:
CAN interface (13) is arranged between described control unit (12) and the electric pressure converter (4), single for the control
First (12) control the electric pressure converter (4) by CAN bus (L).
5. being used for the DC voltage converting system of electric car as claimed in claim 3, which is characterized in that the voltage conversion
Device (4) is DC/DC electric pressure converter；The low-tension supply (3) is low pressure baby battery.
6. being used for the DC voltage converting system of electric car as claimed in claim 3, which is characterized in that described control unit
(12) it is connect by enabled control line (C) with the electric pressure converter (4).
7. being used for the DC voltage converting system of electric car as claimed in claim 3, which is characterized in that the data acquisition
Unit (11) is digital voltmeter.
8. being used for the DC voltage converting system of electric car as claimed in claim 3, which is characterized in that described control unit
It (12) is vehicle-mounted computer.
9. being used for the DC voltage converting system of electric car as described in claim 1, which is characterized in that the voltage conversion
Device (4) is exported electric energy in a manner of constant voltage and current limiting or exports electric energy according to bearing power.
10. being used for the DC voltage converting system of electric car as claimed in claim 9, which is characterized in that the voltage turns
Voltage when parallel operation (4) exports electric energy in a manner of constant voltage and current limiting is 13.5V~13.8V, and electric current is 4A~6A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821646834.XU CN208707522U (en) | 2018-10-10 | 2018-10-10 | DC voltage converting system for electric car |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821646834.XU CN208707522U (en) | 2018-10-10 | 2018-10-10 | DC voltage converting system for electric car |
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| CN208707522U true CN208707522U (en) | 2019-04-05 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109159668A (en) * | 2018-10-10 | 2019-01-08 | 山东元齐新动力科技有限公司 | For the DC voltage converting system and its control method of electric car, medium |
| CN110429351A (en) * | 2019-06-17 | 2019-11-08 | 深圳市华宝新能源股份有限公司 | A kind of battery management method and cell managing device |
| CN112706614A (en) * | 2020-12-21 | 2021-04-27 | 北京百度网讯科技有限公司 | Power supply control apparatus for vehicle and vehicle |
-
2018
- 2018-10-10 CN CN201821646834.XU patent/CN208707522U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109159668A (en) * | 2018-10-10 | 2019-01-08 | 山东元齐新动力科技有限公司 | For the DC voltage converting system and its control method of electric car, medium |
| CN110429351A (en) * | 2019-06-17 | 2019-11-08 | 深圳市华宝新能源股份有限公司 | A kind of battery management method and cell managing device |
| CN112706614A (en) * | 2020-12-21 | 2021-04-27 | 北京百度网讯科技有限公司 | Power supply control apparatus for vehicle and vehicle |
| CN112706614B (en) * | 2020-12-21 | 2022-12-23 | 阿波罗智联(北京)科技有限公司 | Power supply control apparatus for vehicle and vehicle |
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