CN109649373A - A kind of vehicle-mounted 12V power source charges voltage setting value control method of hybrid vehicle - Google Patents
A kind of vehicle-mounted 12V power source charges voltage setting value control method of hybrid vehicle Download PDFInfo
- Publication number
- CN109649373A CN109649373A CN201811558101.5A CN201811558101A CN109649373A CN 109649373 A CN109649373 A CN 109649373A CN 201811558101 A CN201811558101 A CN 201811558101A CN 109649373 A CN109649373 A CN 109649373A
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- Prior art keywords
- battery
- voltage
- setting value
- vehicle
- voltage setting
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W20/00—Control systems specially adapted for hybrid vehicles
-
- 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
- B60L1/00—Supplying electric power to auxiliary equipment of vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/24—Conjoint control of vehicle sub-units of different type or different function including control of energy storage means
- B60W10/26—Conjoint control of vehicle sub-units of different type or different function including control of energy storage means for electrical energy, e.g. batteries or capacitors
-
- 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
Abstract
A kind of vehicle-mounted 12V power source charges voltage setting value control method of hybrid vehicle comprising: entire car controller, the sensor integrated in A-battery；Entire car controller by CAN communication and sensor be connected by communication, and according to the detection information of sensor, calculate the voltage setting value of step down side；When voltage setting value is greater than A-battery voltage, entire car controller controls transformer from high-tension battery side acquisition electric energy by CAN communication and charges to A-battery；When voltage setting value is less than A-battery voltage, A-battery will directly power to vehicle-mounted low pressure power consuming units, obtain voltage setting value and judge accordingly: obtain electric energy from A-battery, or charge to A-battery.
Description
Technical field
The present invention relates to hybrid vehicle field of engineering technology, more particularly to the electricity between high-tension battery and A-battery
The control method of the voltage setting value of pressure converter.
Background technique
With the continuous improvement of environmental consciousness and the continuous reinforcement of national legislation, new energy technology is energetically applied to vapour
In driving skills art.Zero oil consumption and zero-emission may be implemented in pure electric automobile, but has been limited to battery technology, makes pure electric automobile
Continual mileage can not be compared with orthodox car.Therefore, in order to eliminate client to the worry of continual mileage, by internal combustion engine and electronic
The combined hybrid vehicle of machine comes into being.Although high-tension battery can be assembled on hybrid vehicle, it also requires
A-battery give each low pressure power consuming units power supply, especially high-tension battery there are no it is online when.Meanwhile hybrid power vapour
Vehicle can cancel conventional electric generators, to reduce engine loading, further decrease complete-vehicle oil consumption because being assembled with motor.
At this time, it is necessary to a transformer is assembled between high-tension battery and A-battery, by setting transformer low voltage
The voltage value of side can obtain electric energy from high-tension battery, can also charge to A-battery.
Summary of the invention
The purpose of the present invention is: prior art problem is solved, a kind of control method is provided and is realized to A-battery charge and discharge
Control.
To realize the above-mentioned technical purpose, the present invention provides a kind of vehicle-mounted 12V power source charges voltage setting of hybrid vehicle
It is worth control method comprising: it provides: providing the high-tension battery of high voltage power supply, the high-tension battery to motor by inverter
Also powered by transformer to A-battery and vehicle-mounted low pressure power consuming units；It is also provided: entire car controller, in the low tension
The sensor integrated on pond；The entire car controller by CAN communication and the sensor be connected by communication, and according to the biography
The detection information of sensor calculates the voltage setting value of the step down side；When the voltage setting value is greater than described low
When piezoelectricity cell voltage, the entire car controller controls the transformer by CAN communication and obtains electric energy from the high-tension battery side
And it charges to the A-battery；When the voltage setting value is less than the A-battery voltage, the A-battery will be straight
It connects and powers to the vehicle-mounted low pressure power consuming units.
The method of the present invention obtains voltage setting value and judges accordingly, obtains electric energy from A-battery, or to A-battery
It charges, finally, realizes the control to A-battery charge and discharge, meet the needs of hybrid vehicle.
As a further improvement, the detection information of the sensor includes: the temperature of the A-battery, electricity
And electric current.
As a further improvement, the calculating of the voltage setting value includes: the temperature according to the A-battery
With the electricity, desired charging and discharging currents and desired step down side voltage are obtained respectively；It is connect using PI computing module
It receives: the electricity of the desired charging and discharging currents and the desired step down side voltage and the A-battery
The virtual voltage of stream and presently described step down side；In the PI computing module, synchronous calculating is described desired described
The voltage difference of the current differential of A-battery and the A-battery, and export the amendment of the step down side voltage
Value.After the correction value and the desired step down side voltage carry out add operation, the transformer low voltage is obtained
Side voltage value.
As a further improvement, the restrictive condition of the step down side voltage value through overvoltage limiting unit, most
The virtual voltage of the step down side is exported eventually.
As a further improvement, the virtual voltage of the step down side is equal to the voltage setting value.
As a further improvement, the restrictive condition is limited by the specification of the transformer actually used.
As a further improvement, the desired charging and discharging currents are tabled look-up acquisition by first, the desired transformation
Device low-pressure side voltage is tabled look-up acquisition by second.
Method in the present invention considers current difference and voltage difference by the way that PI operation is synchronous, can play gain or inhibition
Effect.If current difference and voltage difference are all bigger, the mutual gain of the two promotes step down side voltage further to increase.
If current difference is bigger, but voltage difference is smaller or is negative value, and the two mutually inhibits, promote step down side voltage into
One step reduces, and vice versa.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention；
Fig. 2 is voltage setting value calculation flow chart.
Appended drawing reference: 1, high-tension battery；2, inverter；3, motor；4, transformer；5, A-battery；6, sensor；7,
Vehicle-mounted low pressure power consuming units；8, CAN communication；9, entire car controller, 11, temperature；12, electricity；13, electric current；14 desired charge and discharges
Electric current；15, desired step down side voltage；16, correction value；17, low-pressure side voltage value；18, virtual voltage；21,
One tables look-up；22, it second tables look-up；23, add operation；24, voltage limiting unit；25, PI computing module.
Specific embodiment
As illustrated in fig. 1 and 2, the present invention provides a kind of vehicle-mounted 12V power source charges voltage setting value control of hybrid vehicle
Method comprising: it provides: providing the high-tension battery 1 of high voltage power supply to motor 3 by inverter 2, the high-tension battery 1 is also
It is powered by transformer 4 to A-battery 5 and vehicle-mounted low pressure power consuming units 7；It is also provided: entire car controller 9, in the low pressure
The sensor 6 integrated on battery 5；The entire car controller 9 by CAN communication 8 and the sensor 6 be connected by communication, and root
According to the detection information of the sensor 6, the voltage setting value of 4 low-pressure side of transformer is calculated；When the voltage setting value
When greater than the A-battery voltage, the entire car controller 9 controls the transformer 4 from the high-voltage electricity by CAN communication 8
1 side of pond obtains electric energy and charges to the A-battery 5；When the voltage setting value is less than the A-battery voltage, institute
Stating A-battery will directly power to the vehicle-mounted low pressure power consuming units 7.
The present invention provides a kind of control strategy for calculating transformer voltage setting value between high-tension battery and A-battery, should
Strategy can consider A-battery temperature, A-battery electricity and the actual current that A-battery sensor reports, and finally calculate
The voltage value of step down side.If the voltage value is greater than the voltage of A-battery, transformer will obtain electric energy from high-pressure side,
It charges to A-battery.If the voltage value is less than the voltage of A-battery, A-battery will supply vehicle-mounted low pressure power consuming units
Electricity.Finally, the control to A-battery charge and discharge is realized.
As a further improvement, the detection information of the sensor 6 include: the A-battery temperature 11,
Electricity 12 and electric current 13.
As a further improvement, the calculating of the voltage setting value includes: the temperature according to the A-battery
11 and the electricity 12, desired charging and discharging currents 14 and desired step down side voltage 15 are obtained respectively；It is transported using PI
It calculates module 25 to receive: the desired charging and discharging currents 14 and the desired step down side voltage 15 and described low
The virtual voltage 18 of 4 low-pressure side of the electric current 13 and presently described transformer of piezoelectric battery；In the PI computing module 25, together
Step calculates the current differential of the desired A-battery and the voltage difference of the A-battery, and exports the transformation
The correction value 16 of 4 low-pressure side voltage of device.The correction value 16 and the desired step down side voltage 15 carry out addition fortune
After calculating 23, the 4 low-pressure side voltage value 17 of transformer is obtained.
As a further improvement, the limitation item of the 4 low-pressure side voltage value 17 of transformer through overvoltage limiting unit 24
Part, the virtual voltage 18 of 4 low-pressure side of transformer described in final output.
As a further improvement, the virtual voltage 18 of 4 low-pressure side of transformer is equal to the voltage setting value.
As a further improvement, the restrictive condition is limited by the specification of the transformer 4 actually used.
As a further improvement, the desired charging and discharging currents 14 are tabled look-up 21 acquisitions by first, described desired
Step down side voltage 15 is tabled look-up 22 acquisitions by second.
Method in the present invention can calculate desired A-battery charge and discharge by identifying the temperature and electric current of A-battery
Electric current；By identifying the temperature and electric current of A-battery, desired A-battery voltage can be calculated.It is controlled using PI former
Reason, comprehensively considers desired A-battery charging and discharging currents and desired A-battery voltage, calculates step down side
Voltage.Finally, the specification for the transformer that this voltage value can be actually used is limited.Current difference is considered by the way that PI operation is synchronous
And voltage difference, the effect of gain or inhibition can be played.If current difference and voltage difference are all bigger, the mutual gain of the two,
Step down side voltage is promoted further to increase.If current difference is bigger, but voltage difference is smaller or is negative value, the two
Mutually inhibit, promotes step down side voltage to further decrease, vice versa.
It should be appreciated that invention which is intended to be protected is not limited to non-limiting embodiments, it should be understood that non-limiting embodiment party
Case is illustrated as just example.The protection scope of the desired essence of the application is more embodied in independent claims offer
Range and its dependent claims.
Claims (7)
1. a kind of vehicle-mounted 12V power source charges voltage setting value control method of hybrid vehicle comprising:
It provides: providing the high-tension battery (1) of high voltage power supply to motor (3) by inverter (2), the high-tension battery (1) is also
It is powered by transformer (4) to A-battery (5) and vehicle-mounted low pressure power consuming units (7), it is characterised in that:
It is also provided: entire car controller (9), the sensor (6) integrated on the A-battery (5)；
The entire car controller (9) by CAN communication (8) and the sensor (6) be connected by communication, and according to the sensor
(6) detection information calculates the voltage setting value of the transformer (4) low-pressure side；
When the voltage setting value is greater than the A-battery voltage, the entire car controller (9) is controlled by CAN communication (8)
The transformer (4) is made to obtain electric energy from the high-tension battery (1) side and charge to the A-battery (5)；When the voltage
When setting value is less than the A-battery voltage, the A-battery will directly power to the vehicle-mounted low pressure power consuming units (7).
2. a kind of vehicle-mounted 12V power source charges voltage setting value control method of hybrid vehicle as described in claim 1, special
Sign is: the detection information of the sensor (6) includes: the temperature (11) of the A-battery, electricity (12) and electric current
(13)。
3. a kind of vehicle-mounted 12V power source charges voltage setting value control method of hybrid vehicle as claimed in claim 2, special
Sign is: the calculating of the voltage setting value includes:
According to the temperature (11) and the electricity (12) of the A-battery, desired charging and discharging currents (14) are obtained respectively
With desired step down side voltage (15)；
It is received using PI computing module (25): the desired charging and discharging currents (14) and the desired step down side electricity
Press the electric current (13) of (15) and the A-battery and the virtual voltage (18) of presently described transformer (4) low-pressure side；
In the PI computing module (25), the synchronous current differential for calculating the desired A-battery and the low pressure
The voltage difference of battery, and export the correction value (16) of the transformer (4) low-pressure side voltage, the correction value (16) and described
After desired step down side voltage (15) carries out add operation (23), the transformer (4) low-pressure side voltage value is obtained
(17)。
4. a kind of vehicle-mounted 12V power source charges voltage setting value control method of hybrid vehicle as claimed in claim 3, special
Sign is: the restrictive condition of the transformer (4) low-pressure side voltage value (17) through overvoltage limiting unit (24), final output institute
State the virtual voltage (18) of transformer (4) low-pressure side.
5. a kind of vehicle-mounted 12V power source charges voltage setting value control method of hybrid vehicle as claimed in claim 4, special
Sign is: the virtual voltage (18) of transformer (4) low-pressure side is equal to the voltage setting value.
6. a kind of vehicle-mounted 12V power source charges voltage setting value control method of hybrid vehicle as claimed in claim 5, special
Sign is: the restrictive condition is limited by the specification of the transformer (4) actually used.
7. a kind of vehicle-mounted 12V power source charges voltage setting value control method of hybrid vehicle as claimed in claim 6, special
Sign is:
The desired charging and discharging currents (14) by first table look-up (21) acquisition, the desired step down side voltage
(15) by second table look-up (22) acquisition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811558101.5A CN109649373A (en) | 2018-12-19 | 2018-12-19 | A kind of vehicle-mounted 12V power source charges voltage setting value control method of hybrid vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811558101.5A CN109649373A (en) | 2018-12-19 | 2018-12-19 | A kind of vehicle-mounted 12V power source charges voltage setting value control method of hybrid vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109649373A true CN109649373A (en) | 2019-04-19 |
Family
ID=66114948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811558101.5A Pending CN109649373A (en) | 2018-12-19 | 2018-12-19 | A kind of vehicle-mounted 12V power source charges voltage setting value control method of hybrid vehicle |
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Citations (7)
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| FR2981625A1 (en) * | 2011-10-19 | 2013-04-26 | Peugeot Citroen Automobiles Sa | Method for managing electrical energy of auxiliary network of electric hybrid car, involves supplying network by low voltage battery when heat engine is turned off, where supplying operation is carried out without intervention of converter |
| CN103221246A (en) * | 2010-11-19 | 2013-07-24 | 丰田自动车株式会社 | Vehicle charging device |
| CN105711421A (en) * | 2016-02-01 | 2016-06-29 | 金龙联合汽车工业（苏州）有限公司 | Novel electrically driven steering boosting system |
| GB2543384A (en) * | 2015-10-16 | 2017-04-19 | Ford Global Tech Llc | A vehicle electrical system |
| CN106828144A (en) * | 2016-12-26 | 2017-06-13 | 中国第汽车股份有限公司 | A kind of hybrid vehicle DC/DC control methods |
| GB2559819A (en) * | 2017-02-15 | 2018-08-22 | Mahindra Electric Mobility Ltd | Methods and systems for energy management in vehicles |
| CN108688469A (en) * | 2017-04-06 | 2018-10-23 | 上海蔚来汽车有限公司 | A kind of the operating on low voltage system and its control method of electric vehicle |
-
2018
- 2018-12-19 CN CN201811558101.5A patent/CN109649373A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103221246A (en) * | 2010-11-19 | 2013-07-24 | 丰田自动车株式会社 | Vehicle charging device |
| FR2981625A1 (en) * | 2011-10-19 | 2013-04-26 | Peugeot Citroen Automobiles Sa | Method for managing electrical energy of auxiliary network of electric hybrid car, involves supplying network by low voltage battery when heat engine is turned off, where supplying operation is carried out without intervention of converter |
| GB2543384A (en) * | 2015-10-16 | 2017-04-19 | Ford Global Tech Llc | A vehicle electrical system |
| CN105711421A (en) * | 2016-02-01 | 2016-06-29 | 金龙联合汽车工业（苏州）有限公司 | Novel electrically driven steering boosting system |
| CN106828144A (en) * | 2016-12-26 | 2017-06-13 | 中国第汽车股份有限公司 | A kind of hybrid vehicle DC/DC control methods |
| GB2559819A (en) * | 2017-02-15 | 2018-08-22 | Mahindra Electric Mobility Ltd | Methods and systems for energy management in vehicles |
| CN108688469A (en) * | 2017-04-06 | 2018-10-23 | 上海蔚来汽车有限公司 | A kind of the operating on low voltage system and its control method of electric vehicle |
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| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 230601 No. 99 Ziyun Road, Hefei Economic and Technological Development Zone, Anhui Province Applicant after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: 230601 No. 669 Shixin Road, Taohua Industrial Park, Hefei City, Anhui Province Applicant before: Anhui Jianghuai Automobile Group Limited by Share Ltd |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190419 |