CN109466379A - Control method, system and the vehicle of vehicle - Google Patents
Control method, system and the vehicle of vehicle Download PDFInfo
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- CN109466379A CN109466379A CN201811302331.5A CN201811302331A CN109466379A CN 109466379 A CN109466379 A CN 109466379A CN 201811302331 A CN201811302331 A CN 201811302331A CN 109466379 A CN109466379 A CN 109466379A
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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
Abstract
The present invention proposes the control method, system and vehicle of a kind of vehicle, and vehicle includes power battery, fuel cell and the preset switches being connected with fuel cell, method includes the following steps: obtaining the state-of-charge of power battery；Preset switches closing or opening is controlled according to state-of-charge, with shutdown or startup fuel cell, vehicle is made to enter pure electric vehicle operational mode or mixed dynamic operational mode.The present invention can control preset switches according to the state-of-charge of power battery, and then realize the control to fuel cell, so that vehicle is entered different operational modes, to improve vehicle security and reliability.
Description
Technical field
The present invention relates to technical field of vehicle, in particular to a kind of control method of vehicle, system and vehicle.
Background technique
Since fuel technology has the features such as energy conservation and environmental protection, become current and development of automobile from now on important directions, at present
Existing enterprise develops the vehicle of matching fuel battery engines in commercial vehicle.
It is mainly for the control mode of fuel cell at present: on vehicle after high-voltage electricity, VCU (Vehicle Control
Unit, entire car controller) FCU (fuel-control unit, Fuel Cell Control System) is enabled, FCU work is controlled by FCU
Entire fuel cell system work.However, the control participation of VCU is extremely low, and fuel cell is only by FCU in this control mode
It controls, therefore, is easy to cause a hidden trouble to vehicle security and reliability, to reduce vehicle security and reliability.
Summary of the invention
The present invention is directed at least solve one of above-mentioned technical problem.
For this purpose, this method can be according to power electric an object of the present invention is to provide a kind of control method of vehicle
The state-of-charge in pond controls preset switches, and then realizes the control to fuel cell, and vehicle is made to enter different operations
Mode, to improve vehicle security and reliability.
Second object of the present invention is to propose a kind of control system of vehicle.
Third object of the present invention is to propose a kind of vehicle.
To achieve the goals above, the embodiment of first aspect present invention discloses a kind of control method of vehicle, described
Vehicle includes power battery, fuel cell and the preset switches being connected with the fuel cell, and the method includes following steps
It is rapid: to obtain the state-of-charge of power battery；Control the preset switches closing or opening according to the state-of-charge, to close or
Start the fuel cell, vehicle is made to enter pure electric vehicle operational mode or mixed dynamic operational mode.
The control method of vehicle according to an embodiment of the present invention, vehicle add the preset switches being connected with fuel cell, energy
It is enough that preset switches are controlled according to the state-of-charge of power battery, such as control preset switches closing or opening, to close or
Starting fluid battery realizes the control to fuel cell, vehicle is made to enter different operational modes, to improve vehicle peace
Full property and reliability.
In addition, the control method of vehicle according to the above embodiment of the present invention can also have following additional technology special
Sign:
In some instances, if the state-of-charge controls the preset switches and disconnect, open less than the first preset value
The fuel cell is moved, the vehicle is made to enter the mixed dynamic operational mode；If the state-of-charge is greater than or equal to described
First preset value and be less than or equal to the second preset value, then according to user input mode selection command come control the vehicle into
Enter corresponding object run mode；If the state-of-charge is greater than second preset value, controls the preset switches and close
It closes, closes the fuel cell, the vehicle is made to enter the pure electric vehicle operational mode.
In some instances, further includes: under the mixed dynamic operational mode, fuel cell is generated according to the state-of-charge
Target output；It is adjusted according to real output of the target output to fuel cell.
In some instances, further includes: judge in the fuel cell operation with the presence or absence of failure；If it is,
It determines fault level, and vehicle is accordingly controlled according to the fault level.
In some instances, described that vehicle is accordingly controlled according to the fault level, further comprise: if institute
Stating failure is level fault, then issues fault alarm, and controls vehicle and enter the mixed dynamic operational mode；If the failure is
Secondary failure then controls the fuel cell downrating；If the failure is three-level fault, the fuel electricity is controlled
Pond is closed, and controls vehicle into the pure electric vehicle operational mode.
To achieve the goals above, the embodiment of second aspect of the present invention discloses a kind of control system of vehicle, described
Vehicle includes power battery, fuel cell and the preset switches being connected with the fuel cell, the system comprises: obtain mould
Block, for obtaining the state-of-charge of power battery；Control module is closed for controlling the preset switches according to the state-of-charge
It closes or disconnects, with fuel cell described in shutdown or startup, vehicle is made to enter pure electric vehicle operational mode or mixed dynamic operational mode.
The control system of vehicle according to an embodiment of the present invention, vehicle add the preset switches being connected with fuel cell, energy
It is enough that preset switches are controlled according to the state-of-charge of power battery, such as control preset switches closing or opening, to close or
Starting fluid battery realizes the control to fuel cell, vehicle is made to enter different operational modes, to improve vehicle peace
Full property and reliability.
In addition, the control system of vehicle according to the above embodiment of the present invention can also have following additional technology special
Sign:
In some instances, the control module is used for: when the state-of-charge is less than the first preset value, described in control
Preset switches disconnect, and start the fuel cell, and the vehicle is made to enter the mixed dynamic operational mode；When the state-of-charge is big
In or when being equal to first preset value and being less than or equal to the second preset value, controlled according to the mode selection command of user's input
The vehicle is made into corresponding object run mode；When the state-of-charge is greater than second preset value, described in control
Preset switches closure, closes the fuel cell, and the vehicle is made to enter the pure electric vehicle operational mode
In some instances, the control module is also used under the mixed dynamic operational mode, according to the state-of-charge
The target output of fuel cell is generated, and is carried out according to real output of the target output to fuel cell
Adjustment.
In some instances, the control module is also used to judge in the fuel cell operation with the presence or absence of event
Barrier, and when there are failures, determine fault level, and accordingly controlled vehicle according to the fault level.
To achieve the goals above, the embodiment of third aspect present invention discloses a kind of vehicle, comprising: the present invention is above-mentioned
The control system of vehicle described in second aspect embodiment.
Vehicle according to an embodiment of the present invention can control preset switches according to the state-of-charge of power battery,
Such as control preset switches closing or opening, with shutdown or startup fuel cell, that is, realize the control to fuel cell, make vehicle into
Enter different operational modes, to improve vehicle security and reliability.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, in which:
Fig. 1 is the flow chart of the control method of vehicle according to an embodiment of the invention；
Fig. 2 is the structural block diagram of the control system of vehicle according to an embodiment of the invention.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and for explaining only the invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description of the present invention and simplification of the description, rather than instruction or dark
Show that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as pair
Limitation of the invention.In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply opposite
Importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
The control method, system and vehicle of vehicle according to an embodiment of the present invention are described below in conjunction with attached drawing.
Fig. 1 is the flow chart of the control method of vehicle according to an embodiment of the invention.Wherein, vehicle includes power electric
Pond, fuel cell and the preset switches being connected with fuel cell, by realizing the control of preset switches to fuel cell
Control.Based on this, as shown in Figure 1, method includes the following steps:
Step S1: the state-of-charge of power battery is obtained.
Step S2: controlling preset switches closing or opening according to state-of-charge makes vehicle with shutdown or startup fuel cell
Into pure electric vehicle operational mode or mixed dynamic operational mode.
Specifically, if state-of-charge controls preset switches disconnection less than the first preset value, starting fluid battery makes
Vehicle enters mixed dynamic operational mode；If state-of-charge is greater than or equal to the first preset value and is less than or equal to the second preset value,
Vehicle is then controlled into corresponding object run mode according to the mode selection command of user's input；If state-of-charge is greater than
Second preset value then controls preset switches closure, closes fuel cell, vehicle is made to enter pure electric vehicle operational mode.That is, mixed
Under dynamic operational mode, vehicle operation institute's electricity demand is provided jointly by fuel cell and power battery, under pure electric vehicle operational mode,
Only vehicle driving institute electricity demand is provided by power battery.
For example, the first preset value is, for example, 30%, and the second preset value is, for example, 80%.That is, working as SOC < 30%
When, illustrate power battery not enough power supply at this time, needs fuel cell auxiliary to provide institute's electricity demand, then entire car controller VCU is controlled
Preset switches disconnect, starting fluid battery, and vehicle enters mixed dynamic operational mode.As 30%≤SOC≤80%, power electric at this time
Pond electricity is more sufficient, electricity can be provided separately by power battery, can also provide jointly electricity by fuel cell and power battery, then
Vehicle is controlled into corresponding object run mode according to the mode selection command of user's input, such as: driver can be according to week
Collarette border judges whether to be suitble to open fuel cell, for example needs to close fuel cell in closing or hot environment to improve safety
Property etc., and then opened or closed by control preset switches to control fuel cell, when preset switches closure, fuel cell is closed
It closes, vehicle enters pure electric vehicle operational mode, and when preset switches disconnect, fuel cell is opened, and vehicle enters mixed dynamic operational mode.
As SOC > 80%, illustrate that power battery electricity is sufficient, electricity is only provided separately by power battery, then control is default opens
It closes and closes, close fuel cell, vehicle is made to enter pure electric vehicle operational mode.
In one embodiment of the invention, this method further include: under mixed dynamic operational mode, generated according to state-of-charge
The target output of fuel cell；It is adjusted according to real output of the target output to fuel cell.Citing
For, i.e., under mixed dynamic operational mode, VCU issues the target output of fuel cell according to power battery SOC value to FCU,
And FCU feedback fuel cell real output, and then VCU according to target output to the reality output function of fuel cell
Rate is adjusted, and realizes closed-loop control, to optimize the output power and performance of fuel cell, and then promotes vehicle performance.
For example, as 0 < SOC≤30%, target output is for example set as 30kw；When 30% < SOC≤50%
When, target output is for example set as 24kw；As 50% < SOC≤70%, target output is for example set as 15kw；
As 70% < SOC≤80%, target output is for example set as 5kw.
Further, in one embodiment of the invention, this method further include: judge be in fuel cell operation
It is no that there are failures；If it is, determining fault level, and vehicle is accordingly controlled according to fault level.More specifically,
Vehicle is accordingly controlled according to fault level, further comprises: if failure is level fault, issuing fault alarm,
And control vehicle and enter mixed dynamic operational mode, wherein level fault is, for example, generic failure, does not influence the normal work of fuel cell
Make；If failure is secondary failure, fuel cell downrating is controlled, wherein earphone failure is, for example, more serious event
Barrier can influence the normal output of fuel cell to a certain degree；If failure is three-level fault, fuel cell shutdown is controlled, and
Control vehicle enters pure electric vehicle operational mode, wherein and three-level fault is, for example, very serious failure, can be caused damages to vehicle,
At this time, it may be necessary to close fuel cell immediately, stop working.For example, i.e., if reporting failure in FCU operation, VCU is according to failure
Grade makes different processing: level fault gives a warning, and indicates that fault level is lower, does not influence the normal work of fuel cell
Make, then vehicle enters mixed dynamic operational mode；Power shutdown drops in secondary failure, and vehicle enters pure electric vehicle operational mode；Three-level fault
It shutting down immediately, vehicle enters pure electric vehicle operational mode, thus, improve vehicle security and reliability.
The control method of vehicle according to an embodiment of the present invention, vehicle add the preset switches being connected with fuel cell, energy
It is enough that preset switches are controlled according to the state-of-charge of power battery, such as control preset switches closing or opening, to close or
Starting fluid battery realizes the control to fuel cell, vehicle is made to enter different operational modes, to improve vehicle peace
Full property and reliability.
Further embodiment of the present invention proposes a kind of control system of vehicle.
Fig. 2 is the structural block diagram of the control system of vehicle according to an embodiment of the invention.Wherein, vehicle includes power
Battery, fuel cell and the preset switches being connected with fuel cell, are realized by the control to preset switches to fuel cell
Control.Based on this, as shown in Fig. 2, the control system 100 of the vehicle includes: to obtain module 110 and control module 120.
Wherein, the state-of-charge that module 110 is used to obtain power battery is obtained.
Control module 120 is used to control preset switches closing or opening according to state-of-charge, with shutdown or startup fuel electricity
Pond makes vehicle enter pure electric vehicle operational mode or mixed dynamic operational mode.In an embodiment of the present invention, control module 120 is for example
For entire car controller VCU.
Specifically, control module 120 is used for: when state-of-charge is less than the first preset value, control preset switches are disconnected, and are opened
Dynamic fuel cell makes vehicle enter mixed dynamic operational mode；When state-of-charge is greater than or equal to the first preset value and is less than or equal to
When the second preset value, vehicle is controlled into corresponding object run mode according to the mode selection command of user's input；Work as lotus
When electricity condition is greater than the second preset value, control preset switches closure closes fuel cell, and vehicle is made to enter pure electric vehicle operation mould
Formula.That is, vehicle operation institute's electricity demand is provided jointly by fuel cell and power battery, in pure electricity under mixed dynamic operational mode
Under dynamic operational mode, vehicle driving institute electricity demand only is provided by power battery.
For example, the first preset value is, for example, 30%, and the second preset value is, for example, 80%.That is, working as SOC < 30%
When, illustrate power battery not enough power supply at this time, needs fuel cell auxiliary to provide institute's electricity demand, then entire car controller VCU is controlled
Preset switches disconnect, starting fluid battery, and vehicle enters mixed dynamic operational mode.As 30%≤SOC≤80%, power electric at this time
Pond electricity is more sufficient, electricity can be provided separately by power battery, can also provide jointly electricity by fuel cell and power battery, then
Vehicle is controlled into corresponding object run mode according to the mode selection command of user's input, such as: driver can be according to week
Collarette border judges whether to be suitble to open fuel cell, for example needs to close fuel cell in closing or hot environment to improve safety
Property etc., and then opened or closed by control preset switches to control fuel cell, when preset switches closure, fuel cell is closed
It closes, vehicle enters pure electric vehicle operational mode, and when preset switches disconnect, fuel cell is opened, and vehicle enters mixed dynamic operational mode.
As SOC > 80%, illustrate that power battery electricity is sufficient, electricity is only provided separately by power battery, then control is default opens
It closes and closes, close fuel cell, vehicle is made to enter pure electric vehicle operational mode.
In one embodiment of the invention, control module 120 is also used under mixed dynamic operational mode, according to state-of-charge
The target output of fuel cell is generated, and is adjusted according to real output of the target output to fuel cell
It is whole.For example, i.e., under mixed dynamic operational mode, VCU is defeated according to the target that power battery SOC value issues fuel cell to FCU
Power out, and FCU feedback fuel cell real output, and then VCU according to target output to the reality of fuel cell
Border output power is adjusted, and realizes closed-loop control, to optimize the output power and performance of fuel cell, and then promotes vehicle
Performance.
For example, as 0 < SOC≤30%, target output is for example set as 30kw；When 30% < SOC≤50%
When, target output is for example set as 24kw；As 50% < SOC≤70%, target output is for example set as 15kw；
As 70% < SOC≤80%, target output is for example set as 5kw.
Further, in one embodiment of the invention, control module 120 is also used to judge fuel cell operation
In whether there is failure, and when there are failures, determine fault level, and accordingly controlled vehicle according to fault level.
More specifically, vehicle is accordingly controlled according to fault level, further comprises: if failure is level fault, being sent out
It is out of order alarm, and controls vehicle and enter mixed dynamic operational mode, wherein level fault is, for example, generic failure, does not influence fuel
The normal work of battery；If failure is secondary failure, fuel cell downrating is controlled, wherein earphone failure is for example
For more serious failure, the normal output of fuel cell can be influenced to a certain degree；If failure is three-level fault, fuel is controlled
Battery is closed, and is controlled vehicle and entered pure electric vehicle operational mode, wherein three-level fault is, for example, very serious failure, can be to whole
Vehicle causes damages, at this time, it may be necessary to close fuel cell immediately, stops working.For example, i.e., if reporting failure in FCU operation,
VCU makes different processing according to fault level: level fault gives a warning, and indicates that fault level is lower, does not influence fuel electricity
The normal work in pond, then vehicle enters mixed dynamic operational mode；Power shutdown drops in secondary failure, and vehicle enters pure electric vehicle operation mould
Formula；Three-level fault is shut down immediately, and vehicle enters pure electric vehicle operational mode, thus, improve vehicle security and reliability.
The control system of vehicle according to an embodiment of the present invention, vehicle add the preset switches being connected with fuel cell, energy
It is enough that preset switches are controlled according to the state-of-charge of power battery, such as control preset switches closing or opening, to close or
Starting fluid battery realizes the control to fuel cell, vehicle is made to enter different operational modes, to improve vehicle peace
Full property and reliability.
Further embodiment of the present invention also proposed a kind of vehicle.The vehicle includes any one above-mentioned implementation of the present invention
The control system of vehicle described in example.
Based on this, the specific reality of the control system of the vehicle of the specific implementation and the above embodiment of the present invention of the vehicle
Existing mode is similar, specifically refers to the description of the control system part of vehicle, in order to reduce redundancy, details are not described herein again.
Vehicle according to an embodiment of the present invention can control preset switches according to the state-of-charge of power battery,
Such as control preset switches closing or opening, with shutdown or startup fuel cell, that is, realize the control to fuel cell, make vehicle into
Enter different operational modes, to improve vehicle security and reliability.
In addition, other compositions of vehicle according to an embodiment of the present invention and effect are for those of ordinary skill in the art
For be all it is known, in order to reduce redundancy, do not repeat them here.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
Centainly refer to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any
One or more embodiment or examples in can be combined in any suitable manner.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that: not
A variety of change, modification, replacement and modification can be carried out to these embodiments in the case where being detached from the principle of the present invention and objective, this
The range of invention is by claim and its equivalent limits.
Claims (10)
1. a kind of control method of vehicle, which is characterized in that the vehicle include power battery, fuel cell and with the combustion
Expect the connected preset switches of battery, the described method comprises the following steps:
Obtain the state-of-charge of power battery；
Controlling the preset switches closing or opening according to the state-of-charge makes vehicle with fuel cell described in shutdown or startup
Enter pure electric vehicle operational mode or mixed dynamic operational mode.
2. the control method of vehicle according to claim 1, which is characterized in that
If the state-of-charge controls the preset switches and disconnects, start the fuel cell, make less than the first preset value
The vehicle enters the mixed dynamic operational mode；
If the state-of-charge is greater than or equal to first preset value and is less than or equal to the second preset value, according to user
The mode selection command of input enters corresponding object run mode to control the vehicle；
If the state-of-charge is greater than second preset value, the preset switches closure is controlled, closes the fuel electricity
Pond makes the vehicle enter the pure electric vehicle operational mode.
3. the control method of vehicle according to claim 1 or 2, which is characterized in that further include:
Under the mixed dynamic operational mode, the target output of fuel cell is generated according to the state-of-charge；
It is adjusted according to real output of the target output to fuel cell.
4. the control method of vehicle according to claim 1, which is characterized in that further include:
Judge in the fuel cell operation with the presence or absence of failure；
If it is, determining fault level, and vehicle is accordingly controlled according to the fault level.
5. the control method of vehicle according to claim 4, which is characterized in that it is described according to the fault level to vehicle
It is accordingly controlled, further comprises:
If the failure is level fault, fault alarm is issued, and controls vehicle and enters the mixed dynamic operational mode；
If the failure is secondary failure, the fuel cell downrating is controlled；
If the failure is three-level fault, the fuel cell shutdown is controlled, and controls vehicle and is transported into the pure electric vehicle
Row mode.
6. a kind of control system of vehicle, which is characterized in that the vehicle include power battery, fuel cell and with the combustion
Expect the connected preset switches of battery, the system comprises:
It obtains module (110), for obtaining the state-of-charge of power battery；
Control module (120), for controlling the preset switches closing or opening according to the state-of-charge, with shutdown or startup
The fuel cell makes vehicle enter pure electric vehicle operational mode or mixed dynamic operational mode.
7. the control system of vehicle according to claim 6, which is characterized in that the control module (120) is used for:
When the state-of-charge is less than the first preset value, controls the preset switches and disconnect, start the fuel cell, make institute
It states vehicle and enters the mixed dynamic operational mode；
It is defeated according to user when the state-of-charge is greater than or equal to first preset value and is less than or equal to the second preset value
The mode selection command entered enters corresponding object run mode to control the vehicle；
When the state-of-charge is greater than second preset value, the preset switches closure is controlled, the fuel cell is closed,
The vehicle is set to enter the pure electric vehicle operational mode.
8. the control system of vehicle according to claim 6 or 7, which is characterized in that the control module (120) is also used to
Under the mixed dynamic operational mode, the target output of fuel cell is generated according to the state-of-charge, and according to the mesh
Mark output power is adjusted the real output of fuel cell.
9. the control system of vehicle according to claim 8, which is characterized in that the control module (120) is also used to sentence
Break with the presence or absence of failure in the fuel cell operation, and when there are failures, determine fault level, and according to described therefore
Barrier grade accordingly controls vehicle.
10. a kind of vehicle characterized by comprising the control system of vehicle as claim in any one of claims 6-9.
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| CN201811302331.5A CN109466379A (en) | 2018-11-02 | 2018-11-02 | Control method, system and the vehicle of vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111038337A (en) * | 2019-12-30 | 2020-04-21 | 潍柴动力股份有限公司 | Control system and control method of fuel cell vehicle |
| CN113581017A (en) * | 2021-08-30 | 2021-11-02 | 深圳市氢蓝时代动力科技有限公司 | Fuel cell control method, apparatus, device and storage medium |
| CN114074552A (en) * | 2020-08-21 | 2022-02-22 | 广州汽车集团股份有限公司 | Fuel cell automobile insulation detection method and vehicle control unit |
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