CN103287281B - A kind of automobile driving system and electric energy control method thereof - Google Patents
A kind of automobile driving system and electric energy control method thereof Download PDFInfo
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- CN103287281B CN103287281B CN201310188537.0A CN201310188537A CN103287281B CN 103287281 B CN103287281 B CN 103287281B CN 201310188537 A CN201310188537 A CN 201310188537A CN 103287281 B CN103287281 B CN 103287281B
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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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Abstract
The invention provides a kind of automobile driving system and electric energy control method thereof, wherein, automobile driving system includes electrokinetic cell, high pressure administrative unit, auxiliary system, motor control unit and drive motor, described electrokinetic cell is that described drive motor is powered by described motor control unit under the control of described high pressure administrative unit, described automobile driving system also includes: control the power control unit of described electrokinetic cell duty and described auxiliary battery duty, the auxiliary battery administrative unit that auxiliary battery and the described auxiliary battery of control are powered to described auxiliary system. by above-mentioned automobile driving system and electric energy control method thereof, can while meeting automobile power sexual demand, optimize the working environment of battery in automobile driving system, thus extending battery service life, reduce battery volume simultaneously, in order to arrangement and follow-up installation, modulation, replacing operation.
Description
Technical field
The present invention relates to drive system, especially, relate to a kind of automobile driving system and electric energy control method thereof.
Background technology
As it is shown in figure 1, be the structural representation of automobile driving system in prior art. This drive system includes electrokinetic cell 11, high pressure administrative unit 12, full-vehicle control unit (HCU) 13, motor control unit 141, drive motor 14, auxiliary system 15, charging inlet 16, inverter (DCAC) 17. Wherein, auxiliary system 15 includes electric power steering unit 151, electric air compression unit 152 and electric air-conditioning 153.
Electrokinetic cell 11 is charged by drive system by charging inlet 16 under the control of high pressure administrative unit 12. Under the control of full-vehicle control unit 13, electrokinetic cell 11 is powered to drive motor 14 by high pressure administrative unit 12 and motor control unit 141, and powered to power assist steering unit 151, electric air compression unit 152 and electric air-conditioning 153 respectively by high pressure administrative unit 12, inverter 17, to ensure drive motor and auxiliary system normal operation, it is ensured that automobile is properly functioning.
Along with the change of driving operating mode, electric power input area also changes therewith, owing to only arranging one piece of electrokinetic cell in drive system, it is impossible to ensure that battery works long hours at optimum output area. In addition, one piece of electrokinetic cell needs the work requirements simultaneously meeting drive motor with these high voltage components of auxiliary system, the capacity of battery can be relatively larger, thus causing that battery volume is also relatively larger, is not easy to the operation such as layout and follow-up installation, debugging and replacing in the car.
Summary of the invention
The technical problem to be solved is to provide a kind of automobile driving system and electric energy control method thereof, meet automobile power sexual demand meanwhile, it is capable to realize the working environment of battery in optimization system, extend battery service life, battery volume can be reduced, in order to arrangement simultaneously.
The invention provides a kind of automobile driving system, including electrokinetic cell, high pressure administrative unit, auxiliary system, motor control unit and drive motor, described electrokinetic cell is that described drive motor is powered by described motor control unit under the control of described high pressure administrative unit, also includes:
Auxiliary battery;
Control the power control unit of described electrokinetic cell duty and described auxiliary battery duty;
Control the auxiliary battery administrative unit that described auxiliary battery is powered to described auxiliary system;
Wherein, described power control unit includes: for detecting the dump energy percentage ratio of electrokinetic cell and the dump energy percentage ratio of auxiliary battery, and control charging direction according to above-mentioned testing result, make the first energy hole subelement that the dump energy percentage ratio of described electrokinetic cell is consistent with the dump energy percentage ratio of described auxiliary battery; And
For predicting the output of drive motor, when the output of described drive motor is more than the power of electrokinetic cell, control described electrokinetic cell and described auxiliary battery is combined and powered for described drive motor, and when the output of described drive motor is less than the power of electrokinetic cell, controls described electrokinetic cell and auxiliary battery each works and respectively to the second energy hole subelement driving battery and auxiliary battery to power.
Preferably, the battery that described charging direction includes by dump energy percentage ratio is big is charged to the battery that dump energy percentage ratio is little and is charged to the battery that dump energy percentage ratio is little by described motor control unit, high pressure administrative unit by described drive motor.
Preferably, described automobile driving system is additionally included in the lower charging inlet for described electrokinetic cell and auxiliary battery charging of control of described power control unit.
Preferably, described automobile driving system also includes inverter; Described auxiliary system includes electric power steering unit, electric air compression unit and electric air-conditioning; Described auxiliary battery is powered to described electric power steering unit, electric air compression unit and electric air-conditioning respectively by inverter under the control of described auxiliary battery administrative unit.
Present invention also offers the electric energy control method of a kind of automobile driving system, comprise the steps:
The dump energy percentage ratio of detection electrokinetic cell and the dump energy percentage ratio of auxiliary battery;
Controlling charging direction according to above-mentioned testing result, the dump energy percentage ratio making described electrokinetic cell is consistent with the dump energy percentage ratio of described auxiliary battery;
The output of prediction drive motor;
The power of the output of described drive motor Yu electrokinetic cell is compared;
If the output of drive motor is more than the power of electrokinetic cell, control described electrokinetic cell and described auxiliary battery is combined and powered for described drive motor, if the output of described drive motor is less than the power of electrokinetic cell, controls described electrokinetic cell and auxiliary battery each works and respectively to driving battery and auxiliary battery to power.
Automobile driving system provided by the invention and electric energy control method thereof, while meeting automobile power sexual demand, it is capable of in optimization system the working environment of battery, extend battery service life, simultaneously can reduce battery volume, in order to arrangement and follow-up installation, modulation, replacing operation.
Accompanying drawing explanation
Fig. 1 is the structural representation of prior art automobile driving system;
Fig. 2 is the structural representation of the automobile driving system first embodiment of the present invention;
Fig. 3 is the structural representation of automobile driving system second embodiment of the present invention;
Fig. 4 is the flow chart of the electric energy control method first embodiment of automobile driving system of the present invention;
Fig. 5 is the flow chart of electric energy control method second embodiment of automobile driving system of the present invention;
Fig. 6 is the flow chart of electric energy control method the 3rd embodiment of automobile driving system of the present invention.
Detailed description of the invention
Understandable for enabling the above-mentioned purpose of the present invention, feature and advantage to become apparent from, below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
With reference to Fig. 2, illustrate the structural representation of automobile driving system first embodiment of the present invention, including electrokinetic cell 21, high pressure administrative unit 22, auxiliary system 23, motor control unit 241, drive motor 24, power control unit 25, auxiliary battery 271 and subsidiary engine Single Component Management unit 272.
Electrokinetic cell 21 is powered for drive motor 24 by motor control unit 241 under the control of high pressure administrative unit 22.
Power control unit 25 is for controlling the duty of electrokinetic cell 21 and the duty of auxiliary battery 271.
Auxiliary battery administrative unit 272 is used for controlling auxiliary battery 271 and powers to auxiliary system 23. Owing to being provided with the auxiliary battery 271 to auxiliary system 23 power supply, electrokinetic cell 21 can arrange matched capacity and output area according to the demand of drive motor 24, can be substantially reduced the size driving battery 24.
By automobile driving system provided by the invention, meet automobile power sexual demand meanwhile, it is capable to realize the working environment of battery in optimization system, and then extend battery service life, simultaneously can reduce battery volume, in order to arrangement and follow-up installation, modulation, replacing operation.
Referring to Fig. 3, it is shown that the structural representation of automobile driving system the second embodiment of the present invention. This preferred embodiment, on the basis of present system first embodiment, also includes charging inlet 26, inverter 273, and auxiliary system 23 includes electric power steering unit 231, electric air compression unit 232 and electric air-conditioning 233.
Charging inlet 26 for being electrokinetic cell 21 by external power source and auxiliary battery 271 is charged under the control of high pressure administrative unit 22.
High pressure administrative unit 22 connects drive motor 24 by motor control unit 241. In order to better protect drive motor 24, it is possible to arrange preliminary filling unit (not shown) in motor control unit 241.
Auxiliary battery 271 is powered to electric power steering unit 231, electric air compression unit 232 and electric air-conditioning 233 respectively by inverter 273 under the control of auxiliary battery administrative unit 272.
Further, the first energy hole subelement is included at power control unit 25, the dump energy percentage ratio of dump energy percentage ratio Yu auxiliary battery 271 for detecting electrokinetic cell 21, and controlling charging direction according to above-mentioned testing result, the dump energy percentage ratio making electrokinetic cell 21 is consistent with the dump energy percentage ratio of auxiliary battery 271. Wherein, the ratio that dump energy percentage ratio (SOC, StateOfChange) is battery dump energy Yu this battery total capacity.
Described charging direction, a kind of is charged to the battery that dump energy percentage ratio is little by the battery that dump energy percentage ratio is big, until the dump energy percentage ratio of electrokinetic cell 21 is consistent with the dump energy percentage ratio of auxiliary battery 271; Another kind is reclaimed the energy for braking and is charged to the battery that dump energy percentage is little by motor control unit 241 and high pressure administrative unit 22 by drive motor 24, until the dump energy percentage ratio of electrokinetic cell 21 is consistent with the dump energy percentage ratio of auxiliary battery 271.
By the first energy hole subelement, the working environment of battery under the premise meeting battery discharge characteristic, can be optimized, and then extend the service life of battery.
Further, the second energy hole subelement is included at power control unit 25, for predicting the output of drive motor 24, and when the output of drive motor 24 is more than the power of electrokinetic cell 21, control electrokinetic cell 21 and auxiliary battery 271 is combined and powered for drive motor 24.
For different rows turner condition, the output of drive motor is different, and such as automobile is when level land travels, and the output of drive motor is less, and automobile is when climbing, and the output of drive motor is bigger. The output of the drive motor 24 predicted and the power of electrokinetic cell 21 are compared by the second energy hole subelement, for instance can be predicted the output of drive motor by the degree of depth of accelerator pedal of automobile. If the output of the drive motor predicted is less than the power of electrokinetic cell 21, illustrate that the output that drive motor needs is less, electrokinetic cell 21 disclosure satisfy that the dynamic property demand that automobile is current, then controlling electrokinetic cell 21 and auxiliary battery 271 each works, respectively drive motor 24 and auxiliary system 23 are powered; If the output of the drive motor predicted is more than the power of electrokinetic cell 21, illustrate that the output that drive motor needs is bigger, electrokinetic cell 21 can not meet the dynamic property demand that automobile is current, then control electrokinetic cell 21 and auxiliary battery 271 and combine and power for drive motor 14.
When causing that battery output area changes in automobile following vehicle working conditions change, by the second energy hole subelement, while meeting automobile power sexual demand, it is ensured that battery works long hours at optimum output area, and then extends the service life of battery.
Present invention also offers the electric energy control method of a kind of automobile driving system, refer to the flow chart of the electric energy control method first embodiment of the present invention shown in Fig. 4, comprise the steps:
S11, the dump energy percentage ratio of detection electrokinetic cell and the dump energy percentage ratio of auxiliary battery;
S12, controls charging direction according to above-mentioned testing result, and the dump energy percentage ratio making electrokinetic cell is consistent with the dump energy percentage ratio of auxiliary battery.
By the electric energy control method of above-mentioned automobile driving system, the working environment of battery under the premise meeting battery discharge characteristic, can be optimized, and then extend the service life of battery.
Further, referring to the flow chart of electric energy control method second embodiment of the present invention shown in Fig. 5, on the basis of electric energy control method first embodiment, also comprise the steps:
S13, it was predicted that the output of drive motor;
S14, compares the output of drive motor whether more than the power of electrokinetic cell; If so, go to step S15, otherwise, go to step S16;
S15, the drive motor that control electrokinetic cell and auxiliary battery are combined for automobile driving system is powered;
S16, controls electrokinetic cell and auxiliary battery respectively drive motor is powered and auxiliary system is powered.
By above-mentioned steps, when causing that battery output area changes in automobile following vehicle working conditions change, can while meeting automobile power sexual demand, it is ensured that battery works long hours at optimum output area, and then extends the service life of battery.
Refer to Fig. 6, for the flow chart of electric energy control method the 3rd embodiment of the present invention, comprise the steps:
S21, it was predicted that the output of drive motor;
S22, compares the output of drive motor whether more than the power of electrokinetic cell; If so, go to step S23, otherwise, go to step S24;
S23, the drive motor that control electrokinetic cell and auxiliary battery are combined for automobile driving system is powered;
S24, controls electrokinetic cell and auxiliary battery respectively drive motor is powered and auxiliary system is powered.
Electric energy control method by above-mentioned automobile driving system, when causing that battery output area changes in automobile following vehicle working conditions change, can while meeting automobile power sexual demand, it is ensured that battery works long hours at optimum output area, and then extends the service life of battery.
Further, above-mentioned electric energy control method also comprises the steps:
The dump energy percentage ratio of detection electrokinetic cell and the dump energy percentage ratio of auxiliary battery;
Controlling charging direction according to above-mentioned testing result, the dump energy percentage ratio making electrokinetic cell is consistent with the dump energy percentage ratio of auxiliary battery.
By above-mentioned steps, the working environment of battery under the premise more meeting battery discharge characteristic, can be optimized, and then extend the service life of battery.
Each embodiment in this specification all adopts the mode gone forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, each execute between example identical similar part mutually referring to.
Above a kind of automobile driving system provided by the present invention and electric energy control method thereof are described in detail, principles of the invention and embodiment are set forth by specific case used herein, and the explanation of above example is only intended to help to understand method and the core concept thereof of the present invention; Simultaneously for one of ordinary skill in the art, according to the thought of the present invention, all will change in specific embodiments and applications, in sum, this specification content should not be construed as limitation of the present invention.
Claims (6)
1. an automobile driving system, including electrokinetic cell, high pressure administrative unit, auxiliary system, motor control unit and drive motor, described electrokinetic cell is that described drive motor is powered by described motor control unit under the control of described high pressure administrative unit, it is characterised in that also include:
Auxiliary battery;
Control the power control unit of described electrokinetic cell duty and described auxiliary battery duty;
Control the auxiliary battery administrative unit that described auxiliary battery is powered to described auxiliary system;
Described power control unit includes: for detecting the dump energy percentage ratio of electrokinetic cell and the dump energy percentage ratio of auxiliary battery, and control charging direction according to above-mentioned testing result, make the first energy hole subelement that the dump energy percentage ratio of described electrokinetic cell is consistent with the dump energy percentage ratio of described auxiliary battery; And
For predicting the output of drive motor, when the output of described drive motor is more than the power of electrokinetic cell, control described electrokinetic cell and described auxiliary battery is combined and powered for described drive motor, and when the output of described drive motor is less than the power of electrokinetic cell, controls described electrokinetic cell and auxiliary battery each works and respectively to the second energy hole subelement driving battery and auxiliary battery to power.
2. automobile driving system as claimed in claim 1, it is characterised in that described charging direction is charged to the battery that dump energy percentage ratio is little by the battery that dump energy percentage ratio is big.
3. automobile driving system as claimed in claim 1, it is characterised in that described charging direction is charged to the battery that dump energy percentage ratio is little by described motor control unit, high pressure administrative unit by described drive motor.
4. automobile driving system as claimed in claim 1, it is characterised in that also include: for the charging inlet of described electrokinetic cell and auxiliary battery charging under the control of described power control unit.
5. automobile driving system as claimed in claim 1, it is characterised in that:
Described automobile driving system also includes inverter;
Described auxiliary system includes electric power steering unit, electric air compression unit and electric air-conditioning;
Described auxiliary battery is powered to described electric power steering unit, electric air compression unit and electric air-conditioning respectively by inverter under the control of described auxiliary battery administrative unit.
6. the electric energy control method of an automobile driving system, it is characterised in that comprise the steps:
The dump energy percentage ratio of detection electrokinetic cell and the dump energy percentage ratio of auxiliary battery;
Controlling charging direction according to above-mentioned testing result, the dump energy percentage ratio making described electrokinetic cell is consistent with the dump energy percentage ratio of described auxiliary battery;
The output of prediction drive motor;
The power of the output of described drive motor Yu electrokinetic cell is compared;
If the output of drive motor is more than the power of electrokinetic cell, control described electrokinetic cell and described auxiliary battery is combined and powered for described drive motor, if the output of described drive motor is less than the power of electrokinetic cell, controls described electrokinetic cell and auxiliary battery each works and respectively to driving battery and auxiliary battery to power.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310188537.0A CN103287281B (en) | 2013-05-21 | 2013-05-21 | A kind of automobile driving system and electric energy control method thereof |
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| CN201310188537.0A CN103287281B (en) | 2013-05-21 | 2013-05-21 | A kind of automobile driving system and electric energy control method thereof |
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| CN103287281B true CN103287281B (en) | 2016-06-08 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP6376160B2 (en) * | 2016-03-22 | 2018-08-22 | トヨタ自動車株式会社 | Automobile |
| CN105751913B (en) * | 2016-03-29 | 2018-05-08 | 浙江吉利控股集团有限公司 | Distributed energy feed system and its control method based on more followers |
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| JP2004031012A (en) * | 2002-06-24 | 2004-01-29 | Nissan Motor Co Ltd | Capacity adjusting device and method for battery pack |
| CN102069721A (en) * | 2010-12-30 | 2011-05-25 | 西安交通大学苏州研究院 | Super capacitor-based electric automobile hybrid power control system |
| CN203331863U (en) * | 2013-05-21 | 2013-12-11 | 潍柴动力股份有限公司 | Car driving system |
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| JP2006304393A (en) * | 2005-04-15 | 2006-11-02 | Toyota Motor Corp | Power supply, its control method and vehicle |
| JP4874874B2 (en) * | 2007-06-06 | 2012-02-15 | トヨタ自動車株式会社 | Vehicle power supply |
| JP4380772B2 (en) * | 2007-10-16 | 2009-12-09 | トヨタ自動車株式会社 | POWER SUPPLY DEVICE, VEHICLE EQUIPPED WITH THE SAME, CONTROL METHOD FOR POWER SUPPLY DEVICE, AND COMPUTER-READABLE RECORDING MEDIUM CONTAINING PROGRAM FOR CAUSING COMPUTER TO EXECUTE THE CONTROL METHOD |
| EP2463138B1 (en) * | 2009-08-07 | 2016-03-30 | Toyota Jidosha Kabushiki Kaisha | Power supply system of electrically driven vehicle and control method thereof |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2000341801A (en) * | 1999-05-31 | 2000-12-08 | Denso Corp | Power supply in electric vehicle |
| JP2004031012A (en) * | 2002-06-24 | 2004-01-29 | Nissan Motor Co Ltd | Capacity adjusting device and method for battery pack |
| CN102069721A (en) * | 2010-12-30 | 2011-05-25 | 西安交通大学苏州研究院 | Super capacitor-based electric automobile hybrid power control system |
| CN203331863U (en) * | 2013-05-21 | 2013-12-11 | 潍柴动力股份有限公司 | Car driving system |
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