CN112644298B - SC electric quantity FCS output power-based control system and control method in startup process - Google Patents
SC electric quantity FCS output power-based control system and control method in startup process Download PDFInfo
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- CN112644298B CN112644298B CN202011594661.3A CN202011594661A CN112644298B CN 112644298 B CN112644298 B CN 112644298B CN 202011594661 A CN202011594661 A CN 202011594661A CN 112644298 B CN112644298 B CN 112644298B
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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
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/40—Electric propulsion with power supplied within the vehicle using propulsion power supplied by capacitors
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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
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/70—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by fuel cells
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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
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/30—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling fuel cells
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/40—Application of hydrogen technology to transportation, e.g. using fuel cells
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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)
- Fuel Cell (AREA)
Abstract
The invention discloses a control system and a control method based on SC electric quantity FCS output power in a starting process, which comprises a starting module, an SOC uploading module, a VCU control module, a power adjusting module and an energy system, wherein the information output end of the starting module is connected with the SOC uploading module, the information output end of the SOC uploading module is connected with the VCU control module, and the information output end of the VCU control module is connected with the power adjusting module; the starting module starts the machine through joint debugging test; the SOC uploading module is used for uploading the SOC of the super capacitor to the VCU control module; and the VCU control module makes corresponding judgment according to the SOC of the super capacitor and sends a corresponding instruction to the fuel cell system control unit. The control system based on the output power of the SC electric quantity FCS in the starting process increases the consideration of the starting process on the SOC condition of the super capacitor in a whole vehicle control strategy and correspondingly adjusts the power output of the fuel battery system.
Description
Technical Field
The invention relates to the technical field of fuel cells, in particular to a control system and a control method based on SC electric quantity FCS output power in a starting process.
Background
In the test process of the whole vehicle control system, the sudden failure problem can cause the whole joint debugging system to carry out corresponding emergency stop processing for the purpose of protection, aiming at the situation, the super capacitor SOC is a less determined parameter, in order to better test the working condition, the super capacitor SOC is too low, the fluctuation of bus voltage can be caused, the power output of a fuel cell system is influenced, corresponding impact can be generated on other parts, the super capacitor SOC is too low, the situation that the required power of a motor can not be met can also be caused, the uncertainty and instability of the joint debugging process are increased, the super capacitor SOC is kept in a reasonable range, the rapid discharging characteristic of the super capacitor can be fully exerted, the output power requirement of the whole vehicle system can be greatly improved for the extreme working condition, and therefore, a control system and a control method based on the output power of the SC electric quantity FCS in the starting process are provided.
Disclosure of Invention
The present invention is directed to a system and a method for controlling an output power based on an SC power FCS during a start-up process, so as to solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: the control system comprises a startup module, an SOC uploading module, a VCU control module, a power adjusting module and an energy system, wherein the information output end of the startup module is connected with the SOC uploading module, the information output end of the SOC uploading module is connected with the VCU control module, and the information output end of the VCU control module is connected with the power adjusting module;
the starting module starts the machine through joint debugging test;
the SOC uploading module is used for uploading the SOC of the super capacitor to the VCU control module;
the VCU control module makes corresponding judgment according to the SOC of the super capacitor and sends a corresponding instruction to the fuel cell system control unit;
when the SOC of the super capacitor is lower than 30%, the fuel cell system skips a heat engine process and directly outputs rated power set by the fuel cell system, except for supplying corresponding power demand for waiting for speed, the rest energy is all charged to the super capacitor, and the charging current of the super capacitor is calculated according to the following formula: I.C. A discharge ＝I FCSmax -I air -I m (ii) a In the formula I discharge Charging current for the super capacitor; I.C. A FCSmax Is the maximum output current of the fuel cell system; i is air The current is required for the air compressor and the controller thereof; i is m Current is required for the motor and the motor controller;
when the SOC of the super capacitor reaches 70%, the output power of the fuel cell system is recovered to be normal, and corresponding setting is carried out according to the current outlet temperature of the cooling liquid and the required power VCU of the motor.
Preferably, in the starting-up process of the starting-up module, if the VCU control module detects that the SOC of the super capacitor is higher than 60%, the output power of the fuel cell system is not adjusted accordingly.
Preferably, the SOC uploading module sets the output power of the fuel cell system to 16kw when detecting that the SOC of the super capacitor is higher than 30% and lower than or equal to 60% until the SOC of the super capacitor reaches 70%.
Preferably, the main energy source of the energy system is a fuel cell system, the rated output power is set to be 30kw, and the auxiliary energy source is a super capacitor system.
Preferably, the control method is as follows: firstly, a joint debugging test starts, a super capacitor needs to upload the SOC of the super capacitor to a VCU control module, and when the SOC of the super capacitor is higher than 60%, the output power is not adjusted; when the SOC of the super capacitor is lower than 30%, the full power output of the fuel cell system is realized, and when the SOC of the super capacitor reaches 70%, the output power of the fuel cell system is recovered to be normal; and when the SOC of the super capacitor is higher than 30%, the fuel cell system outputs 16 KW.
Compared with the prior art, the invention has the beneficial effects that: in the starting process, the control system based on the output power of the SC electric quantity FCS is added into a whole vehicle control strategy to consider the SOC condition of the super capacitor in the starting process and correspondingly adjust the power output of the fuel battery system; the range of the super capacitor SOC is set correspondingly, and the output current of the fuel cell system is divided correspondingly.
Drawings
FIG. 1 is a schematic diagram of the workflow of the present invention;
FIG. 2 is a schematic diagram of a control flow structure according to the present invention.
In the figure: 1. a starting module; 2. an SOC uploading module; 3. a VCU control module; 4. and a power adjusting module.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides a technical solution: the control System comprises a starting module 1, an SOC (System on Chip) uploading module 2, a VCU (Vehicle control unit) control module 3, a power adjusting module 4 and an energy System, wherein an information output end of the starting module 1 is connected with the SOC uploading module 2, an information output end of the SOC uploading module 2 is connected with the VCU control module 3, and an information output end of the VCU control module 3 is connected with the power adjusting module 4.
The operating principle of the control system comprises the following steps: the method comprises the steps that for judging the SOC of a super capacitor, a VCU instructs a fuel cell system to issue a command, the output power of the fuel cell system is adjusted, a main energy source is the fuel cell system, the rated output power is set to be 30kw, an auxiliary energy source is the super capacitor system, 0.6kwh, in the starting process of a joint debugging test, the super capacitor needs to upload the SOC of the super capacitor to a whole vehicle control unit, the VCU can make corresponding judgment according to the SOC of the super capacitor and issue a corresponding command to the fuel cell system control unit, a corresponding range is set for the SOC of the super capacitor, when the SOC of the super capacitor is lower than 30%, the fuel cell system needs to skip the heat-up process, the requirement of limiting the temperature of a cooling liquid of the fuel cell needs to be ignored, the rated power set by the fuel cell system is directly output, and except for supplying the corresponding power to be waited for speed, and the rest energy is completely charged to the super capacitor. The charging current of the super capacitor is calculated according to the following formula:
I discharge ＝I FCSmax -I air -I m in the formula I discharge Charging current for the super capacitor; I.C. A FCSmax Is the maximum output current of the fuel cell system; I.C. A air The current is required for the air compressor and the controller thereof; i is m Requiring current for the motor and motor controller;
when the adjusted output power of the fuel cell is maximum and the SOC of the super capacitor reaches 70%, the output power of the fuel cell system is recovered to be normal, corresponding setting is carried out according to the current outlet temperature of the cooling liquid and the required power VCU of the motor, in the starting process, the VCU detects that the SOC of the super capacitor is higher than 60%, the output power of the fuel cell system is not adjusted correspondingly, when the SOC of the super capacitor is higher than 30% and lower than or equal to 60%, the output power of the fuel cell system is set to be 16kw until the SOC of the super capacitor reaches 70%, the starting process is added in a control strategy of the whole vehicle to consider the SOC state of the super capacitor and correspondingly adjust the power output of the fuel cell system;
the invention also provides a technical scheme that: the control method based on SC electric quantity FCS output power in the starting process comprises the following steps: firstly, a joint debugging test starts, a super capacitor needs to upload the SOC of the super capacitor to a VCU control module 3, and when the SOC of the super capacitor is higher than 60%, the output power is not adjusted; when the SOC of the super capacitor is lower than 30%, the full power output of the fuel cell system is realized, when the SOC of the super capacitor reaches 70%, the full power output of the fuel cell system is realized, and when the SOC of the super capacitor is higher than 30%, the 16KW output of the fuel cell system is realized.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The control system based on SC electric quantity FCS output power in the startup process comprises a startup module, an SOC uploading module, a VCU control module, a power adjusting module and an energy system, and is characterized in that: the information output end of the starting-up module is connected with the SOC uploading module, the information output end of the SOC uploading module is connected with the VCU control module, and the information output end of the VCU control module is connected with the power adjusting module;
the starting module starts the machine through joint debugging test;
the SOC uploading module is used for uploading the SOC of the super capacitor to the VCU control module;
the VCU control module makes corresponding judgment according to the SOC of the super capacitor and sends a corresponding instruction to the fuel cell system control unit;
the power adjusting module and the super capacitorWhen the SOC is lower than 30%, the fuel cell system skips the heat engine process and directly outputs rated power set by the fuel cell system, except for supplying corresponding power demand for waiting for speed, the residual energy is all charged to the super capacitor, and the charging current of the super capacitor is calculated according to the following formula: I.C. A discharge ＝I FCSmax -I air -I m (ii) a In the formula I discharge Charging current for the super capacitor; I.C. A FCSmax Is the maximum output current of the fuel cell system; I.C. A air The current is required for the air compressor and the controller thereof; i is m Current is required for the motor and the motor controller;
when the SOC of the super capacitor reaches 70%, the output power of the fuel cell system is recovered to be normal, and corresponding setting is carried out according to the current outlet temperature of the cooling liquid and the required power VCU of the motor.
2. The system for controlling FCS output power based on SC electric quantity in the startup process according to claim 1, wherein: in the starting-up process of the starting-up module, when the VCU control module detects that the SOC of the super capacitor is higher than 60%, the output power of the fuel cell system is not correspondingly adjusted.
3. The system for controlling FCS output power based on SC electric quantity in the startup process according to claim 1, wherein: when the SOC uploading module detects that the SOC of the super capacitor is higher than 30% and lower than or equal to 60%, the output power of the fuel cell system is set to 16kw until the SOC of the super capacitor reaches 70%.
4. The system for controlling FCS output power based on SC electric quantity in the startup process according to claim 1, wherein: the main energy of the energy system is a fuel cell system, the rated output power is set to be 30kw, and the auxiliary energy is a super capacitor system.
5. A control method based on the control system of the FCS output power based on the SC electric quantity in the startup process according to any one of claims 1 to 4, characterized in that: the control method comprises the following steps: firstly, a joint debugging test starts, a super capacitor needs to upload the SOC of the super capacitor to a VCU control module, and when the SOC of the super capacitor is higher than 60%, the output power is not adjusted; when the SOC of the super capacitor is lower than 30%, the full power output of the fuel cell system is realized, and when the SOC of the super capacitor reaches 70%, the output power of the fuel cell system is recovered to be normal; and when the SOC of the super capacitor is higher than 30%, the fuel cell system outputs 16 KW.
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| KR100837939B1 (en) * | 2006-10-11 | 2008-06-13 | 현대자동차주식회사 | Power system of hybrid fuel cell bus and control method thereof |
| JP5350067B2 (en) * | 2009-04-28 | 2013-11-27 | 本田技研工業株式会社 | Power system |
| KR101033900B1 (en) * | 2009-06-23 | 2011-05-11 | 현대자동차주식회사 | Power transmission device and method for fuel cell-super capacitor hybrid vehicle |
| CN101841182B (en) * | 2010-05-17 | 2012-05-30 | 武汉理工大学 | Fuel cell hybrid power source system |
| CN102700427B (en) * | 2012-06-01 | 2014-05-21 | 武汉理工大学 | Vehicle-mounted fuel cell and storage cell directly paralleled power system with super capacitor |
| CN105083050B (en) * | 2015-09-23 | 2017-05-31 | 中国人民解放军装甲兵技术学院 | A kind of hybrid fuel cell energy storage device and its control method for electric vehicle |
| CN109823235B (en) * | 2019-02-20 | 2021-10-01 | 中国科学技术大学 | Energy management system of hybrid energy storage device of battery, super capacitor and fuel cell |
| CN110576755B (en) * | 2019-09-04 | 2021-11-30 | 武汉格罗夫氢能汽车有限公司 | Hydrogen energy automobile fuel cell energy management system based on auxiliary energy system |
| CN110861538B (en) * | 2019-11-01 | 2021-11-12 | 深圳国氢新能源科技有限公司 | Fuel cell automobile hybrid power control method and system |
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Address after: 430000 Building 1, No. 99, Weilai Third Road, Donghu New Technology Development Zone, Wuhan City, Hubei Province Patentee after: Grove Hydrogen Energy Technology Group Co.,Ltd. Address before: 430000 Building 1, No. 99, Weilai Third Road, Donghu New Technology Development Zone, Wuhan City, Hubei Province Patentee before: WUHAN LUOGEFU HYDROGEN ENERGY AUTOMOBILE Co.,Ltd. |
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Denomination of invention: Control system and control method of FCS output power based on SC electric quantity during startup Effective date of registration: 20230201 Granted publication date: 20221014 Pledgee: China Construction Bank Corporation Wuhan Gangcheng sub branch Pledgor: Grove Hydrogen Energy Technology Group Co.,Ltd. Registration number: Y2023420000015 |