CN110303946A - A kind of control method and device of fuel cell car - Google Patents
A kind of control method and device of fuel cell car Download PDFInfo
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- CN110303946A CN110303946A CN201810202181.4A CN201810202181A CN110303946A CN 110303946 A CN110303946 A CN 110303946A CN 201810202181 A CN201810202181 A CN 201810202181A CN 110303946 A CN110303946 A CN 110303946A
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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
- 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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- Life Sciences & Earth Sciences (AREA)
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- Sustainable Energy (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Fuel Cell (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The present invention relates to a kind of control method and device of fuel cell car, which includes: to calculate current slot average demand power；Fuel cell is exported after opening machine according to calculated current slot average demand power.In the present invention; under the operating condition that vehicle operates normally; it is exported according to the current slot average demand information calculated; vehicle power demand matches with fuel cell output power at this time; maximumlly reduce energy storage component charge and discharge process; the efficiency of Fuel Cell Vehicle Powertrain is improved, while improving the adaptability for working condition of fuel cell system, avoids the frequent variable load of fuel cell and start and stop.
Description
Technical field
The present invention relates to a kind of control method and device of fuel cell car, belong to fuel cell car technical field.
Background technique
With the continuous consumption of the energy, new-energy automobile is increasingly becoming a kind of development trend.Wherein, hydrogen cell automobile
National governments, each grand duke have been obtained because of the features such as its is high-effect, low pollution, energy security as one of new-energy automobile
The great attention of department and research department has wide application scenarios.
But with regard to the current situation of current hydrogen cell automobile from the point of view of, hydrogen fuel cell system be also faced with the service life it is short,
The various problems such as at high cost, ambient adaptability is poor, high failure rate, system structure complexity, so needing to make very in vehicle part
More protection mechanisms, this just constrains the popularization and application of fuel cell technology.Xian Ge enterprise all the Devoting Major Efforts To Developing long-life, it is low at
Originally, the fuel cell system of less trouble, to push the commercialization operation of fuel-cell vehicle.
Currently, domestic hydrogen fuel cell producer is all in the starting stage, fuel cell system lifetime is shorter, and fuel is electric
The pond service life is the important factor in order for restricting fuel battery passenger car large-scale commercial.The critical material of vehicle fuel battery and portion
The deterioration mode of part mainly has following four:
(1) high potential caused by frequent starting stops causes the corrosion of catalyst carbon support；(2) acceleration and deceleration cause repeatedly
Current potential circulation cause catalyst platinum particle coarsening；(3) underrun causes proton exchange membrane to be decomposed；(4) low-temperature circulating
Adjoint breathing cause membrane electrode mechanical damage.
Present technical solution is that the energy storage devices such as battery, supercapacitor and fuel cell construct electricity-electricity mixed power,
Not only it can reduce fuel cell output power rate of change, but also can fluctuating widely to avoid fuel cell load.Currently, existing
In the control strategy of some fuel-cell vehicles, there are two operating power points, respectively rated power output and minimum for fuel cell
Power output, and judge that working condition, corresponding control process are as shown in Figure 1 according to vehicle SOC.Since fuel cell can not
It identifies car operation state, causes fuel cell high load capacity output, frequent start-stop machine, dynamical system often occur inefficient etc.
Situation；Due to cannot intelligentized identification travel condition of vehicle, fuel cell power generation power can not carry out with vehicle demand power
Matching, the difference power of both is provided by energy storage component, and energy storage component efficiency for charge-discharge is only 92% or so, causes to move
Force system platform efficiency further decreases.
Summary of the invention
The object of the present invention is to provide a kind of control method and device of fuel cell car, for solving fuel cell frequency
The problem that numerous variable load, start and stop cause Fuel Cell Vehicle Powertrain low efficiency, fuel cell service life short.
In order to solve the above technical problems, steps are as follows the present invention provides a kind of control method of fuel cell car:
Calculate current slot average demand power；
Fuel cell is exported after opening machine according to calculated current slot average demand power to avoid vehicle storage
It can component repeated charge.
Further, further includes:
Vehicle energy storage component SOC is obtained in real time, if vehicle energy storage component SOC is not more than the first given threshold, fuel cell
It is exported according to rated power；Otherwise, fuel cell is exported according to calculated current slot average demand power.
Further, further includes:
Vehicle energy storage component SOC is obtained in real time, if vehicle energy storage component SOC is not more than the first given threshold, fuel cell
It is exported according to rated power；If vehicle energy storage component SOC is greater than the first given threshold and less than the second given threshold, fuel cell
It is exported according to calculated current slot average demand power；If vehicle energy storage component SOC is not less than the second setting threshold
It is worth and is less than third given threshold, power output when fuel cell is according to peak efficiency；If vehicle energy storage component SOC is not less than
Third given threshold, then fuel cell is shut down.
Further, after fuel cell is shut down, judge whether vehicle energy storage component SOC is greater than the first given threshold and is less than
Second given threshold, if vehicle energy storage component SOC is greater than the first given threshold and less than the second given threshold, fuel cell is opened
Machine.
Further, after fuel cell opens machine, whether real-time judge has stop sign, if there is stop sign, fuel electricity
It shuts down in pond.
Further, according to vehicle historical data information, current slot average demand power is calculated.
The present invention also provides a kind of control device of fuel cell car, including processor and memory, the processing
Device is used to handle the instruction of storage in the memory to realize following method:
Calculate current slot average demand power；
Fuel cell is exported after opening machine according to calculated current slot average demand power to avoid vehicle storage
It can component repeated charge.
Further, further includes:
Vehicle energy storage component SOC is obtained in real time, if vehicle energy storage component SOC is not more than the first given threshold, fuel cell
It is exported according to rated power；Otherwise, fuel cell is exported according to calculated current slot average demand power.
Further, further includes:
Vehicle energy storage component SOC is obtained in real time, if vehicle energy storage component SOC is not more than the first given threshold, fuel cell
It is exported according to rated power；If vehicle energy storage component SOC is greater than the first given threshold and less than the second given threshold, fuel cell
It is exported according to calculated current slot average demand power；If vehicle energy storage component SOC is not less than the second setting threshold
It is worth and is less than third given threshold, power output when fuel cell is according to peak efficiency；If vehicle energy storage component SOC is not less than
Third given threshold, then fuel cell is shut down.
Further, after fuel cell is shut down, judge whether vehicle energy storage component SOC is greater than the first given threshold and is less than
Second given threshold, if vehicle energy storage component SOC is greater than the first given threshold and less than the second given threshold, fuel cell is opened
Machine.
Further, after fuel cell opens machine, whether real-time judge has stop sign, if there is stop sign, fuel electricity
It shuts down in pond.
Further, according to vehicle historical data information, current slot average demand power is calculated.
The beneficial effects of the present invention are:
Under the operating condition that vehicle operates normally, fuel cell is average according to the current slot that historical data information is calculated
Demand information is exported, when being exported according to the average demand information, vehicle power demand and fuel cell output work
Rate matches, and maximumlly reduces energy storage component repeated charge process, effectively increases Fuel Cell Vehicle Powertrain
Efficiency；The adaptability for working condition for improving fuel cell system simultaneously, avoids the frequent variable load of fuel cell and start and stop, reduces
Fuel cell performance decay, increases fuel cell system lifetime, thereby reduces fuel cell cost.
Further, when vehicle energy storage component SOC is not more than the first given threshold, fuel cell is defeated according to rated power
Out, otherwise fuel cell is exported according to calculated current slot average demand power, can not only meet vehicle storage
The charge requirement of energy component, while the charge and discharge process of vehicle energy storage component is reduced, increase vehicle continual mileage.
Further, whole at this time when vehicle energy storage component SOC is greater than the first given threshold and less than the second given threshold
Vehicle energy storage component is in preferable operating status, and fuel cell is allowed to carry out according to calculated current slot average demand power
Output can make vehicle energy storage component be in preferable operating status for a long time in this way, further improve fuel cell system
Generating efficiency.
Detailed description of the invention
Fig. 1 is the control process schematic diagram of existing fuel cell car；
Fig. 2 is the logical schematic of the control method of fuel cell car in the present invention；
Fig. 3 is fuel cell VA characteristic curve.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing and specific implementation
The present invention will be described in further detail for example.
The present invention provides a kind of control device of fuel cell car, which includes processor and memory,
The processor is for handling instruction stored in memory, to realize a kind of control method of fuel cell car, the control
The logical schematic of method is as shown in Fig. 2, mainly comprise the steps that
(1) current slot average demand power is calculated.
Wherein, in the present embodiment, according to vehicle historical data information, using big data processing method, to vehicle history
Data information carries out self study analysis, to obtain vehicle current time section average demand power W.Furthermore it is also possible to go out in vehicle
Before factory, calibration initial default mean power W is carried out according to vehicle operation data on existing route.
(2) fuel cell opens after machine in the normal driving conditions of vehicle, and fuel cell is according to calculated current slot
Average demand power W is exported.
Fuel cell output power is adjusted by fuel cell self study, makes vehicle power demand and fuel cell output work
Rate matches, and maximumlly reduces energy storage component repeated charge process, reduces the influence of efficiency for charge-discharge (92%), keep away
The phenomenon that having exempted from the frequent variable load of fuel cell, start and stop, extends fuel cell system lifetime, improves powertrain platform effect
Rate increases vehicle continual mileage.
(3) vehicle energy storage component SOC is obtained in real time, and the work of fuel cell is redefined according to vehicle energy storage component SOC
Operation mode determines fuel cell output power.
Wherein, in the normal driving conditions of fuel cell car, fuel cell is worked as according to according to historical data is calculated
Preceding period average demand power W is exported.And when encountering other special operation conditions, such as encounter traffic congestion or road conditions are bad
Situations such as, need vehicle slowly to travel, or encounter that road conditions are preferable and road vehicle is less, when needing vehicle fast running,
It then judges, i.e., just needs according to vehicle energy storage component SOC, to redefine the defeated of fuel cell according to energy storage component SOC
Power out.Energy storage component herein refers to the vehicles energy accumulatings device such as power battery, supercapacitor.
Specifically, when having SOC≤M, then fuel cell is pressed if vehicle energy storage component SOC is not more than the first given threshold M
It is exported according to rated power.Divided stages by existing vehicle energy storage component SOC greater than given threshold M are three power sections, point
It Wei not M < SOC < Q, Q≤SOC < R and R≤SOC.Wherein, if vehicle energy storage component SOC is greater than the first given threshold M, and
Less than the second given threshold Q, that is, when having M < SOC < Q, then fuel cell is according to calculated current slot average demand function
Rate W is exported.If vehicle energy storage component SOC be not less than the second given threshold Q, and be less than third given threshold R when, that is, have Q
When≤SOC < R, then fuel cell is exported according to best efficiency point.If vehicle energy storage component SOC is not less than third given threshold R
When, that is, when having R≤SOC, then fuel cell is shut down.It certainly, can also be directly according to calculated average demand function as SOC > M
Rate W is exported.
Wherein, Fig. 3 gives the VA characteristic curve of fuel cell, and wherein curve 1 indicates the curent change of fuel cell,
Curve 2 indicates the voltage change of fuel cell, and curve 3 indicates the efficiency change of fuel cell.The efficiency of fuel cell becomes
Change curve 3, can determine the efficiency highest point 4 and system effectiveness the best movement area of fuel cell system.As M < SOC < Q,
Vehicle energy storage component is in best charge and discharge section, allows fuel cell according to calculated current slot average demand function at this time
Rate W output, when vehicle energy storage component can be allowed to always work at this section in this way, can make vehicle energy storage component service life
Long, efficiency for charge-discharge height.And as Q≤SOC < R, illustrate that the storing electricity of vehicle energy storage part is higher, allow at this time fuel cell by
Power output when according to peak efficiency improves the generating efficiency of fuel cell system, extends fuel cell system lifetime.
When there is R≤SOC, fuel cell is shut down, and after fuel cell shutdown, whether judges vehicle energy storage component SOC
Greater than the first given threshold and less than the second given threshold, if vehicle energy storage component SOC is greater than the first given threshold and less than the
Two given thresholds, then fuel cell opens machine, re-scales the output power of fuel cell.Since fuel cell rises after machine all every time
Optimum output power is demarcated, improves fuel cell system generating efficiency, while reducing the charge and discharge process of energy storage component, is increased
Vehicle continual mileage is added.
In addition, in the whole work process that fuel cell opens machine output, it is also necessary to whether real-time judge has stop sign,
If there is stop sign, fuel cell is shut down, electricity parking under vehicle.
The present invention is by under vehicle nominal situation, self study analytical calculation vehicle average demand power, and according to difference
Period vehicle power demand matches fuel cell power generation power, carries out fuel cell according to vehicle average demand power defeated
Out；And by increasing fuel cell the best movement area and best efficiency point output under special operation condition, since vehicle power needs
It asks and matches with fuel cell output power, improve the operating condition applicability of fuel cell system, it is frequent to avoid fuel cell
Variable load, start and stop, it is maximized to reduce energy storage component charge and discharge process, while automotive power generating efficiency is improved, increase
Add the vehicle dynamical system service life.
Claims (10)
1. a kind of control method of fuel cell car, which is characterized in that steps are as follows:
Calculate current slot average demand power；
Fuel cell is exported after opening machine according to calculated current slot average demand power to avoid vehicle energy storage part
Part repeated charge.
2. the control method of fuel cell car according to claim 1, which is characterized in that further include:
In real time obtain vehicle energy storage component SOC, if vehicle energy storage component SOC be not more than the first given threshold, fuel cell according to
Rated power output；Otherwise, fuel cell is exported according to calculated current slot average demand power.
3. the control method of fuel cell car according to claim 1, which is characterized in that further include:
In real time obtain vehicle energy storage component SOC, if vehicle energy storage component SOC be not more than the first given threshold, fuel cell according to
Rated power output；If vehicle energy storage component SOC is greater than the first given threshold and less than the second given threshold, fuel cell according to
Calculated current slot average demand power is exported；If vehicle energy storage component SOC not less than the second given threshold and
Power output less than third given threshold, when fuel cell is according to peak efficiency；If vehicle energy storage component SOC is not less than third
Given threshold, then fuel cell is shut down.
4. the control method of fuel cell car according to claim 3, which is characterized in that after fuel cell is shut down, sentence
Whether disconnected vehicle energy storage component SOC is greater than the first given threshold and less than the second given threshold, if vehicle energy storage component SOC is greater than
First given threshold and less than the second given threshold, then fuel cell opens machine.
5. the control method of fuel cell car described in any one of -4 according to claim 1, which is characterized in that fuel cell
After opening machine, whether real-time judge has stop sign, if there is stop sign, fuel cell is shut down.
6. the control method of fuel cell car described in any one of -4 according to claim 1, which is characterized in that according to vehicle
Historical data information calculates current slot average demand power.
7. a kind of control device of fuel cell car, which is characterized in that including processor and memory, the processor is used for
The instruction of processing storage in the memory is to realize following method:
Calculate current slot average demand power；
Fuel cell is exported after opening machine according to calculated current slot average demand power to avoid vehicle energy storage part
Part repeated charge.
8. the control device of fuel cell car according to claim 7, which is characterized in that further include:
In real time obtain vehicle energy storage component SOC, if vehicle energy storage component SOC be not more than the first given threshold, fuel cell according to
Rated power output；Otherwise, fuel cell is exported according to calculated current slot average demand power.
9. the control device of fuel cell car according to claim 7, which is characterized in that further include:
In real time obtain vehicle energy storage component SOC, if vehicle energy storage component SOC be not more than the first given threshold, fuel cell according to
Rated power output；If vehicle energy storage component SOC is greater than the first given threshold and less than the second given threshold, fuel cell according to
Calculated current slot average demand power is exported；If vehicle energy storage component SOC not less than the second given threshold and
Power output less than third given threshold, when fuel cell is according to peak efficiency；If vehicle energy storage component SOC is not less than third
Given threshold, then fuel cell is shut down.
10. the control device of fuel cell car according to claim 9, which is characterized in that after fuel cell is shut down, sentence
Whether disconnected vehicle energy storage component SOC is greater than the first given threshold and less than the second given threshold, if vehicle energy storage component SOC is greater than
First given threshold and less than the second given threshold, then fuel cell opens machine.
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| CN201810202181.4A CN110303946B (en) | 2018-03-12 | 2018-03-12 | Control method and device for fuel cell vehicle |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111216596A (en) * | 2020-01-13 | 2020-06-02 | 一汽解放汽车有限公司 | Fuel cell whole vehicle energy management method and device, vehicle and storage medium |
| CN111731156A (en) * | 2020-06-12 | 2020-10-02 | 大运汽车股份有限公司 | Energy control method for hydrogen fuel cell automobile |
| CN113022381A (en) * | 2021-03-22 | 2021-06-25 | 潍柴动力股份有限公司 | Power self-adaptive control method and system for fuel cell power system |
| CN113306455A (en) * | 2020-02-27 | 2021-08-27 | 广州汽车集团股份有限公司 | Fuel cell management method and device and fuel cell automobile |
| CN113479188A (en) * | 2021-07-22 | 2021-10-08 | 潍柴(扬州)亚星新能源商用车有限公司 | Fuel cell engine power control method and device and electronic equipment |
| CN114103734A (en) * | 2021-12-30 | 2022-03-01 | 潍柴动力股份有限公司 | Control method and device for fuel cell vehicle |
| CN114312489A (en) * | 2020-09-30 | 2022-04-12 | 北京亿华通科技股份有限公司 | Fuel cell engine power control method |
| WO2024130758A1 (en) * | 2022-12-21 | 2024-06-27 | 北汽福田汽车股份有限公司 | Hydrogen fuel cell energy control method and device, and vehicle |
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| WO2002067346A2 (en) * | 2001-02-16 | 2002-08-29 | Cellex Power Products, Inc. | Hybrid power supply apparatus for battery replacement applications |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111216596A (en) * | 2020-01-13 | 2020-06-02 | 一汽解放汽车有限公司 | Fuel cell whole vehicle energy management method and device, vehicle and storage medium |
| CN113306455A (en) * | 2020-02-27 | 2021-08-27 | 广州汽车集团股份有限公司 | Fuel cell management method and device and fuel cell automobile |
| CN111731156A (en) * | 2020-06-12 | 2020-10-02 | 大运汽车股份有限公司 | Energy control method for hydrogen fuel cell automobile |
| CN111731156B (en) * | 2020-06-12 | 2022-07-05 | 大运汽车股份有限公司 | Energy control method for hydrogen fuel cell automobile |
| CN114312489A (en) * | 2020-09-30 | 2022-04-12 | 北京亿华通科技股份有限公司 | Fuel cell engine power control method |
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| CN113022381A (en) * | 2021-03-22 | 2021-06-25 | 潍柴动力股份有限公司 | Power self-adaptive control method and system for fuel cell power system |
| CN113479188A (en) * | 2021-07-22 | 2021-10-08 | 潍柴(扬州)亚星新能源商用车有限公司 | Fuel cell engine power control method and device and electronic equipment |
| CN114103734A (en) * | 2021-12-30 | 2022-03-01 | 潍柴动力股份有限公司 | Control method and device for fuel cell vehicle |
| WO2024130758A1 (en) * | 2022-12-21 | 2024-06-27 | 北汽福田汽车股份有限公司 | Hydrogen fuel cell energy control method and device, and vehicle |
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