CN110015131A - A kind of fuel-cell vehicle dynamical system control method and device - Google Patents
A kind of fuel-cell vehicle dynamical system control method and device Download PDFInfo
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- CN110015131A CN110015131A CN201710785486.8A CN201710785486A CN110015131A CN 110015131 A CN110015131 A CN 110015131A CN 201710785486 A CN201710785486 A CN 201710785486A CN 110015131 A CN110015131 A CN 110015131A
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- power
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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
Abstract
The present invention provides a kind of fuel-cell vehicle dynamical system control method and device, and control method includes the following steps: that the current peak power output P1 for obtaining fuel cell, the current maximum charge power P2 and motor of power battery currently run required power P 3；As P1 < P2 or P1 < P3, the present output power for controlling fuel cell is P1；As P3 < P2 < P1, the present output power for controlling fuel cell is P2；As P2 < P3 < P1, the present output power for controlling fuel cell is P3.Technical solution provided by the present invention, power needed for capable of making the output power of fuel cell that can either meet motor operation, and will not operate under the biggish operating condition of output power, to improve the durability of fuel cell；And it does not need to calculate the output power of fuel cell in control process, control process is fairly simple.
Description
Technical field
The invention belongs to new energy vehicle dynamic Control technical fields, and in particular to a kind of fuel-cell vehicle dynamical system
Control method and device.
Background technique
In today's society, automobile is the indispensable vehicles of the mankind, its appearance fully and completely changes the mankind's
Life, furthered regional scope, easily transports people or goods and materials, promotes the development of economic society.However since the industrial revolution
Rise, industrial machine is continuously increased, and the ownership of special vehicle is constantly incremented by, the shortage of traditional energy and the pollution of environment
Increasingly sharpen, also constrain economic sustainable development, every country also active response, provides the attention of height thus.
The all relatively more good fuel cell electric vehicle of the automobile industry of every country at present, it is short that it can solve the energy
Scarce and environmental degradation problem, has the two-fold advantage of traditional combustion engine automobile and pure electric automobile, it is avoided that electric car
The slow disadvantage of the short charging of continuation of the journey, also can solve orthodox car pollution emission problem.And its structure and pure electric vehicle vapour
Vehicle is much like, technically easy to accomplish, acceptant in the market.
Common dynamical system on fuel-cell vehicle is as shown in Figure 1, fuel cell connects vehicle by DC/DC converter
High voltage dc bus, power battery and motor take electricity from high voltage dc bus, and power battery controller passes through DC/DC and converts
The power of device control fuel cell.In order to guarantee the normal operation of vehicle, the output power of fuel cell and filling for power battery
Electrical power, motor operation power between need to keep balancing.When controlling fuel-cell vehicle dynamical system, if
Power provided by fuel cell is too small, cannot meet the power needed for motor operates normally, be not normally functioning vehicle；
If the output power of fuel cell is made to meet the demand of the needs of power battery charging power and motor operation power, can make
Output power when at operation of fuel cells is bigger, and the charge power of power battery is also bigger, influences fuel cell and moves
The durability and reliability of power battery, and fuel cell controller is needed to the output power of fuel cell not in control process
Disconnected calculate, and control process is more troublesome.
Summary of the invention
The purpose of the present invention is to provide a kind of fuel-cell vehicle dynamical system control method and devices, existing for solving
There is fuel-cell vehicle dynamical system control method influence caused by fuel cell durability in technology.
To achieve the above object, present invention provide the technical scheme that
A kind of fuel-cell vehicle dynamical system control method, includes the following steps:
(1) the current peak power output of fuel cell is obtained, the current maximum charge power and motor of power battery are worked as
Power needed for preceding operation；
(2) the current peak power output of fuel cell is set as P1, and the current maximum charge power of power battery is P2, electricity
Power needed for machine is currently run is P3, then
As P1 < P2 or P1 < P3, the present output power for controlling fuel cell is P1；
As P3 < P2 < P1, the present output power for controlling fuel cell is P2；
As P2 < P3 < P1, the present output power for controlling fuel cell is P3.
Technical solution provided by the present invention, when the peak power output of fuel cell is greater than the maximum charge of power battery
When power needed for power and motor operation, biggish work in power needed for the maximum charge power and motor operation by power battery
For the peak power output of fuel cell, power needed for making the output power of fuel cell that can either meet motor operation, again
It will not operate under the biggish operating condition of output power, to improve the durability of fuel cell；And it is not required in control process
The output power of fuel cell is calculated, control process is fairly simple.
Further, when vehicle braking, the current brake feedback power of vehicle is obtained；If the current brake feedback of vehicle
Power is P4, and the present output power for controlling fuel cell is not more than the difference of P2 and P4.
When vehicle braking, fuel cell is not electrical machine with power, and the power of output is all power battery charging, and
And feedback braking power is also power battery charging, so the sum of power provided by the power and fuel cell of feedback braking is no
The maximum charge power of power battery can be greater than, otherwise extra electricity cannot be filled with power battery, cause the waste of the energy.
Further, when receiving shutdown command, the present output power for controlling fuel cell is zero, and is stopped as combustion
Expect that battery supplies hydrogen.
When receiving shutdown command, vehicle is out of service, stops hydrogen supply in time in order to avoid causing to waste.
A kind of fuel-cell vehicle Power-system controls, including fuel cell controller, fuel cell controller are set
There is Fuel Cell Control module, Fuel Cell Control module is used for:
The current peak power output of fuel cell is obtained, the current maximum charge power and motor of power battery are currently transported
Power needed for row；
If the current peak power output of fuel cell is P1, the current maximum charge power of power battery is P2, motor
Power needed for current operation is P3, then
As P1 < P2 or P1 < P3, the present output power for controlling fuel cell is P1；
As P3 < P2 < P1, the present output power for controlling fuel cell is P2；
As P2 < P3 < P1, the present output power for controlling fuel cell is P3.
Further, the Fuel Cell Control module is also used to: when vehicle braking, the current brake for obtaining vehicle is returned
Present power；If the current brake feedback power of vehicle is P4, the present output power of fuel cell is controlled no more than P2's and P4
Difference.
Further, the Fuel Cell Control module is also used to: when receiving shutdown command, controlling fuel cell
Present output power is zero, and stops being that fuel cell supplies hydrogen.
Detailed description of the invention
Fig. 1 is the structure chart of fuel-cell vehicle dynamical system；
Fig. 2 is the control schematic diagram of fuel-cell vehicle dynamical system in embodiment；
Fig. 3 is the flow chart of fuel-cell vehicle dynamical system control method in embodiment.
Specific embodiment
The purpose of the present invention is to provide a kind of fuel-cell vehicle dynamical system control method and devices, existing for solving
There is fuel-cell vehicle dynamical system control method influence caused by fuel cell durability in technology.
To achieve the above object, present invention provide the technical scheme that
A kind of fuel-cell vehicle dynamical system control method, includes the following steps:
(1) the current peak power output of fuel cell is obtained, the current maximum charge power and motor of power battery are worked as
Power needed for preceding operation；
(2) the current peak power output of fuel cell is set as P1, and the current maximum charge power of power battery is P2, electricity
Power needed for machine is currently run is P3, then
As P1 < P2 or P1 < P3, the present output power for controlling fuel cell is P1；
As P3 < P2 < P1, the present output power for controlling fuel cell is P2；
As P2 < P3 < P1, the present output power for controlling fuel cell is P3.
Embodiments of the present invention are described further with reference to the accompanying drawing.
Installation practice:
The present embodiment provides a kind of fuel-cell vehicle Power-system controls, suitable for fuel electricity as shown in Figure 1
Pond automotive power, structure is as shown in Fig. 2, include fuel cell controller, the CAN that fuel cell controller passes through vehicle
Bus communication connects entire car controller, while being also connected with fuel cell, hydrogen-feeding system and DC/DC converter.
Fuel cell controller obtains the current peak power output P1 of fuel cell from fuel cell in real time, and passes through vehicle
CAN bus obtain the current maximum charge power P2 of power cell of vehicle in real time and motor currently runs required maximum work
Rate P3.The current peak power output P1 of fuel cell controller fuel cell, the current maximum charge function of power battery
Current maximum power P3 needed for rate P2 and motor actual motion controls the output power of fuel cell, the stream of control
Journey is as shown in figure 3, steps are as follows:
Judge that vehicle is in on-position or normally travel state；
If vehicle is in normally travel state, judge whether the current peak power output P1 of fuel cell is greater than vehicle
The current maximum charge power P2 and motor of power battery currently run required maximum power P3, if it is greater, then judgement
Whether the current maximum charge power P2 of the power battery of vehicle, which is greater than motor, currently runs required maximum power P3；
Current maximum needed for if the current maximum charge power P2 of the power battery of vehicle is greater than motor actual motion
Power P 3, i.e. P3 < P2 < P1, then the value for controlling fuel cell present output power is P2；
Current maximum needed for if the current maximum charge power P2 of the power battery of vehicle is less than motor actual motion
Power P 3, i.e. P2 < P3 < P1, then the value for controlling fuel cell present output power is P3；
If the current peak power output P1 of fuel cell is less than the current maximum charge power P2 of power cell of vehicle
Or current maximum power P3, i.e. P1 < P2 or P1 < P3 needed for motor actual motion, then control fuel cell present output power
Value be P1；
When vehicle is in on-position, fuel cell controller obtains power cell of vehicle from the CAN bus of vehicle
Current maximum charge power P2 and current brake feedback power P4；Motor does not need power when due to vehicle braking, and brakes
Energy can be fed back in power battery, be power battery charging, so the charge power of power battery is excessive in order to prevent, control
The sum of current output power value and current brake feedback power P4 of fuel cell are not more than the current maximum charge of power battery
The current output power value of power P 2, i.e. control fuel cell is not more than P2-P4, in order to avoid cause the waste of the energy.
Embodiment of the method:
The present embodiment provides a kind of fuel-cell vehicle dynamical system control methods, with fuel electricity in above-mentioned apparatus embodiment
The control method of pond automotive power is identical, has been discussed in detail above, seldom explains here.
Claims (6)
1. a kind of fuel-cell vehicle dynamical system control method, which comprises the steps of:
(1) the current peak power output of fuel cell is obtained, the current maximum charge power and motor of power battery are currently transported
Power needed for row；
(2) the current peak power output of fuel cell is set as P1, and the current maximum charge power of power battery is P2, and motor is worked as
Power needed for preceding operation is P3, then
As P1 < P2 or P1 < P3, the present output power for controlling fuel cell is P1；
As P3 < P2 < P1, the present output power for controlling fuel cell is P2；
As P2 < P3 < P1, the present output power for controlling fuel cell is P3.
2. a kind of fuel-cell vehicle dynamical system control method according to claim 1, which is characterized in that when vehicle system
When dynamic, the current brake feedback power of vehicle is obtained；If the current brake feedback power of vehicle is P4, working as fuel cell is controlled
Preceding output power is not more than the difference of P2 and P4.
3. a kind of fuel-cell vehicle dynamical system control method according to claim 1, which is characterized in that when receiving
When shutdown command, the present output power for controlling fuel cell is zero, and stops being that fuel cell supplies hydrogen.
4. a kind of fuel-cell vehicle Power-system controls, which is characterized in that including fuel cell controller, fuel cell
Controller is equipped with Fuel Cell Control module, and Fuel Cell Control module is used for:
The current peak power output of fuel cell is obtained, the current maximum charge power and motor of power battery currently run institute
Need power；
If the current peak power output of fuel cell is P1, the current maximum charge power of power battery is P2, and motor is current
Power needed for running is P3, then
As P1 < P2 or P1 < P3, the present output power for controlling fuel cell is P1；
As P3 < P2 < P1, the present output power for controlling fuel cell is P2；
As P2 < P3 < P1, the present output power for controlling fuel cell is P3.
5. a kind of fuel-cell vehicle Power-system controls according to claim 4, which is characterized in that the fuel
Battery control module is also used to: when vehicle braking, obtaining the current brake feedback power of vehicle；If the current brake of vehicle returns
Feedback power is P4, and the present output power for controlling fuel cell is not more than the difference of P2 and P4.
6. a kind of fuel-cell vehicle Power-system controls according to claim 4, which is characterized in that the fuel
Battery control module is also used to: when receiving shutdown command, the present output power for controlling fuel cell is zero, and stopping is
Fuel cell supplies hydrogen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710785486.8A CN110015131A (en) | 2017-09-04 | 2017-09-04 | A kind of fuel-cell vehicle dynamical system control method and device |
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| CN201710785486.8A CN110015131A (en) | 2017-09-04 | 2017-09-04 | A kind of fuel-cell vehicle dynamical system control method and device |
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| CN110015131A true CN110015131A (en) | 2019-07-16 |
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Cited By (3)
| 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 |
| CN111682759A (en) * | 2020-04-20 | 2020-09-18 | 珠海格力电器股份有限公司 | Fuel cell DC-DC converter operation control method, computer readable storage medium and fuel cell |
| CN115742883A (en) * | 2022-12-13 | 2023-03-07 | 中国重汽集团济南动力有限公司 | Energy recovery power and fuel cell power distribution control system and method |
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| GB2281642A (en) * | 1993-09-06 | 1995-03-08 | Imra Europe Sa | Fuel cell voltage generator |
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| GB2281642A (en) * | 1993-09-06 | 1995-03-08 | Imra Europe Sa | Fuel cell voltage generator |
| CN101207211A (en) * | 2006-12-14 | 2008-06-25 | 欧姆龙株式会社 | Fuel cell system |
| CN101420041A (en) * | 2007-10-26 | 2009-04-29 | 通用汽车环球科技运作公司 | Method for improving fcs reliability after end cell heater failure |
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Cited By (4)
| 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 |
| CN111682759A (en) * | 2020-04-20 | 2020-09-18 | 珠海格力电器股份有限公司 | Fuel cell DC-DC converter operation control method, computer readable storage medium and fuel cell |
| CN111682759B (en) * | 2020-04-20 | 2023-09-22 | 珠海格力电器股份有限公司 | Fuel cell DC-DC converter operation control method, computer readable storage medium and fuel cell |
| CN115742883A (en) * | 2022-12-13 | 2023-03-07 | 中国重汽集团济南动力有限公司 | Energy recovery power and fuel cell power distribution control system and method |
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Application publication date: 20190716 |
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