CN105946585B - A kind of Vehicular power management system and electric vehicle - Google Patents
A kind of Vehicular power management system and electric vehicle Download PDFInfo
- Publication number
- CN105946585B CN105946585B CN201610388742.5A CN201610388742A CN105946585B CN 105946585 B CN105946585 B CN 105946585B CN 201610388742 A CN201610388742 A CN 201610388742A CN 105946585 B CN105946585 B CN 105946585B
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- management system
- power management
- vehicular power
- energy
- current control
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L7/00—Electrodynamic brake systems for vehicles in general
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/42—Drive Train control parameters related to electric machines
- B60L2240/429—Current
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/54—Drive Train control parameters related to batteries
- B60L2240/549—Current
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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
-
- 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
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
This application discloses a kind of Vehicular power management system and the electric vehicle of the system is installed.The Vehicular power management system is connect with vehicle control system, including energy-storage units, the current control level being connect with energy-storage units and the controller being connect with energy-storage units and current control level.The controller includes battery management system and the communication interface that is connect with vehicle control system.The Vehicular power management system further includes the change-over switch in parallel with current control level, and the change-over switch is connect with controller.The application Vehicular power management system ensure that battery normal operation in the case where high instantaneous current exports, and realize overcurrent protection.
Description
Technical field
This application involves electric vehicle fields, and in particular to the Vehicular power management system of electric vehicle and installs the system
Electric vehicle.
Background technology
In the prior art, in electric vehicle field, traditional lead-acid battery is gradually replaced using lithium ion battery, with system
Make energy-storage system（Or " accumulator "）.Normally, the rated operational voltage of Vehicular power management system has 6V, 12V, 24V etc..
Relative to lead-acid battery, the case where lithium ion battery is to physical environment and electric load state, is more sensitive.For example, in low temperature ring
Under border, the power input and fan-out capability of lithium ion battery can be limited to its internal resistance increased.And in this case, it is excessively high
Electric current can then cause critical voltage beyond or below normal value, and then generate the consequence that damage battery even damages battery.
It is this to exceed rated voltage or generate carrying current less than the limiting voltage of rated voltage.The fact that usual
It can maintain several seconds, such as：When providing power to start internal combustion engine.Specifically, if vehicle work in low-voltage power system
It is 12V to make voltage, and vehicle motor can reach 15V with the upper limit of output voltage, and high-power application may reduce output
Voltage is to 9V or lower.When beyond this voltage range, it is necessary to assure battery functi on is normal and by power protection.
Therefore, when above based on lithium-ion technology starter or booster battery be applied to conventional truck（Such as：
Automobile, truck, bus and motorcycle etc.）When middle, it may occur that the phenomenon that exceeding its range of nominal tension.For example, being based on
The battery of LiFePO4 technologies, operating voltage is usually between 3.7V-2V, but instantaneous voltage minimum reaches 1.6V.It is based on
The battery of LiMnOx technologies, operating voltage is usually between 4.2V-2.5V, but instantaneous voltage minimum reaches 2V.
If battery is directly connected on the expanded metals of 12V voltages of vehicle, in the input and output electric current and battery of battery
Portion's resistance, charged state（SOC：State Of Charge）, expanded metals（Board Net）Voltage level is at certain functional relation.It is false
As there is no current control device between battery and vehicle expanded metals, just has and flow out electricity along with the huge current flow of voltage fuctuation within a narrow range
Pond flows into the expanded metals of vehicle 12V voltages.
Therefore, it is typically necessary setting current control device in the prior art.Usual this current control device is a kind of
Power versus pulse modulating equipment.If in the high current of example from above, such power versus pulse modulating equipment just need by
It is designed to stand as starting the high-current pulse needed for engine, and the cost done so is very expensive.
Invention content
In view of this, the application provides a kind of Vehicular power management system with function of power protection and installs this is
The electric vehicle of system.
The application realizes goal of the invention one of by following technical solution：A kind of Vehicular power management system, with vehicle
Control system connects, including energy-storage units, the current control level that is connect with energy-storage units and with energy-storage units and current control
The controller of grade connection.The energy-storage units include several lithium ion batteries.The controller include battery management system and
The communication interface being connect with vehicle control system；The Vehicular power management system further includes the conversion in parallel with current control level
Switch, the change-over switch are connect with controller.
Further, the current control level is semiconductor current control level.
Further, the change-over switch is electric mechanical switch.
Further, the controller is configured as detecting the state of energy-storage units, and the state includes at least electricity
It is one or more in pond charged state, temperature and voltage.
Further, the controller is configured as detecting electric current.
Further, according to the status values of the energy-storage units detected, the controller controls current control level work
Make, so that the electric current exported in the electric current and discharge process that are inputted in charging process is maintained within safe range.
Further, the current control level has charge and discharge bidirectional operation mode.
Further, when the vehicle control system sends feedback on-position information to controller, the electric current control
Grade processed is controlled as charge mode, and battery can be charged to peak；The voltage drop of vehicle expanded metals is to low-level state, institute
It states current control level and is controlled as electric discharge operating mode, energy-storage units electric discharge.
Further, the energy-storage units, current control level, controller, change-over switch are assembled into the shell of battery.
The application by following technical solution two realize goal of the invention：A kind of electric vehicle, including vehicle control system
System and Vehicular power management system as described above.
Compared with prior art, the application Vehicular power management system ensure that battery the case where high instantaneous current exports
Lower normal operation realizes overcurrent protection.Closer, the application Vehicular power management system can also realize that overcharge is protected
Hot restricted problem is protected and solved to shield, over-discharge.
Description of the drawings
Fig. 1 is the structural schematic diagram of Vehicular power management system of the present invention.
Specific implementation mode
Here illustrative embodiments will be illustrated in detail, the example is illustrated in the accompanying drawings.Following description relates to
And when attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary is implemented
Embodiment described in mode does not represent all embodiments consistent with the application.On the contrary, they be only with such as
The example of consistent device and method of some aspects be described in detail in the appended claims, the application.
It is the purpose only merely for description particular implementation in term used in this application, is not intended to be limiting this Shen
Please.The application and "an" of singulative used in the attached claims, " described " and "the" be also intended to including
Most forms, unless context clearly shows that other meanings.It is also understood that term "and/or" used herein refers to
And include one or more associated list items purposes any or all may combine.
As shown in Figure 1, the application Vehicular power management system, connect with vehicle control system 5, including energy-storage units 1, electricity
Flow control grade 2 and the controller 3 being connect with energy-storage units 1 and current control level 2.The energy-storage units 1 include several lithiums from
Sub- battery（It is not shown）.The current control level 2 be semiconductor current control level, to manage power, fever, charged state and
Voltage etc., to occur situations such as preventing super-high-current from exporting or input battery.The controller 3 includes battery management system
（BMS：Battery Management System）And the communication interface being connect with vehicle control system 5.
The controller 3 detects the state, including charged state, cell temperature, cell voltage etc. of energy-storage units 4.Into one
Step, the controller 3 also detect the numerical value of electric current.Can calculate separately battery according to the above numerical value allows input or output power
And voltage.These values work to driving current controlled stage 2, so that the electric current that is inputted in charging process and discharging
The electric current exported in journey is maintained within safe range, protects battery and whole system.
In order to abide by cost efficiency principle, the output of electric current and power is limited in the semiconductor current control level 2
The reasonable lower limiting value of electric current or power when normal vehicle operation.
In order to ensure battery normal operation in the case where high instantaneous current exports, overcurrent protection, the application vehicle are realized
Power-supply management system further includes the change-over switch 4 in parallel with current control level 2.
The change-over switch 4 can be assembled into engine relay as the high current change-over switch of general starter
In device or other equipment.In one embodiment, the change-over switch is electric mechanical switch.
If vehicle control system 5 needs 1 output HIGH current of energy-storage units（Such as engine start）When, controller 3 opens
The change-over switch 4 is moved, high current is allowed to flow out battery.Since controller 3 can make energy-storage units 1 keep full power state, same to time control
Parallel current control level 2 and change-over switch 4 are made, this not only allows battery to export or input high current but also may be implemented
Protection to energy-storage units 1.Current control level 2 and change-over switch 4 can be operated individually or simultaneously in controller 3 at any time.
Further, the current control level 2 has charge and discharge bidirectional operation mode, therefore current control level 2 can be single
The solely charged state of effective control energy-storage units 1.Further, regenerative braking under a kind of low-pressure state of the application proposition
（Or regenerative braking, Regenerative Braking）Scheme, i.e., under low-level charged state, if vehicle control system
When system 5 sends the information command of feedback on-position to controller 3, the current control level 2 is controlled as charge mode,
Battery can be charged to peak.Correspondingly, reverse operating can also be carried out, if the 12V expanded metals voltages of vehicle drop to it is low
Horizontality, the current control level 2 are controlled as electric discharge operating mode, can thus control the electric discharge of battery energy storage unit 1.
In one embodiment, the components such as the energy-storage units 1, current control level 2, controller 3, change-over switch 4 can quilt
It is assembled into the shell of battery.
The theme and core of the application is exactly to propose a kind of vehicle electrical source capsule based on low pressure related with lithium ion battery
Reason system can complete the overcurrent protection for system itself, overcharge protection, over-discharge protection and solve heat limit
Problem processed also proposed a kind of method meeting very much Cost Benefit Principle and provides high current for electric motor starting in addition.
In the above description, the details of technical scheme of the present invention is elaborated, however, those skilled in the art can be much of that
Solution, listed detail that the present invention is not limited to the above embodiments, but can become in claim limited range
Change.
The foregoing is merely the better embodiments of the application, all the application's not to limit the application
Within spirit and principle, any modification, equivalent substitution, improvement and etc. done should be included within the scope of the application protection.
Claims (10)
1. a kind of Vehicular power management system, connect with vehicle control system, it is characterised in that：Including energy-storage units and energy storage
The current control level of unit connection and the controller being connect with energy-storage units and current control level；If the energy-storage units include
Dry lithium ion battery；The controller includes battery management system and the communication interface that is connect with vehicle control system；It is described
Vehicular power management system further includes the change-over switch in parallel with current control level, and the change-over switch is connect with controller.
2. Vehicular power management system as described in claim 1, it is characterised in that：The current control level is semiconductor electric current
Controlled stage.
3. Vehicular power management system as described in claim 1, it is characterised in that：The change-over switch is electric mechanical switch.
4. Vehicular power management system as described in claim 1, it is characterised in that：The controller is configured as detecting
The state of energy-storage units, the state include at least one or more in battery charging state, temperature and voltage.
5. Vehicular power management system as claimed in claim 4, it is characterised in that：The controller is configured as detecting
Electric current.
6. Vehicular power management system as described in claim 4 or 5, it is characterised in that：According to the energy-storage units detected
Status values, the controller controls current control level work, so that the electric current and discharge process that are inputted in charging process
The electric current of middle output is maintained within safe range.
7. Vehicular power management system as described in claim 1, it is characterised in that：The current control level has charge and discharge double
To operating mode.
8. Vehicular power management system as claimed in claim 7, it is characterised in that：The vehicle control system is sent out to controller
When sending feedback on-position information back to, the current control level is controlled as charge mode, and battery can be charged to highest
Value；For the voltage drop of vehicle expanded metals to low-level state, the current control level is controlled as electric discharge operating mode, and energy-storage units are put
Electricity.
9. Vehicular power management system as described in claim 1, it is characterised in that：The energy-storage units, current control level, control
Device processed, change-over switch are assembled into the shell of battery.
10. a kind of electric vehicle, it is characterised in that：Including vehicle control system and such as institute in claim 1 to 9 any one
The Vehicular power management system stated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610388742.5A CN105946585B (en) | 2016-06-02 | 2016-06-02 | A kind of Vehicular power management system and electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610388742.5A CN105946585B (en) | 2016-06-02 | 2016-06-02 | A kind of Vehicular power management system and electric vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105946585A CN105946585A (en) | 2016-09-21 |
| CN105946585B true CN105946585B (en) | 2018-10-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610388742.5A Active CN105946585B (en) | 2016-06-02 | 2016-06-02 | A kind of Vehicular power management system and electric vehicle |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107117048B (en) * | 2017-04-14 | 2019-06-07 | 铭创(福建)电子科技有限公司 | A kind of long-distance management device and method of new energy vehicle power battery |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8299756B2 (en) * | 2007-11-01 | 2012-10-30 | General Electric Company | System and method for battery control |
| US8148952B2 (en) * | 2009-07-14 | 2012-04-03 | GM Global Technology Operations LLC | Control strategy for HV battery equalization charge during driving operation in fuel cell hybrid vehicles |
| CN102832657B (en) * | 2011-06-16 | 2015-03-25 | 凹凸电子（武汉）有限公司 | Battery management system and method |
| TWI505061B (en) * | 2013-11-15 | 2015-10-21 | Inst Information Industry | Power generation control system, method and non-transitory computer readable storage medium of the same |
| KR101587358B1 (en) * | 2014-09-02 | 2016-02-02 | 엘에스산전 주식회사 | A hybrid vehicle |
| DE102014221482A1 (en) * | 2014-10-22 | 2016-04-28 | Ford Global Technologies, Llc | Method for controlling a voltage source for charging a battery of a motor vehicle |
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| CN105946585A (en) | 2016-09-21 |
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