CN107627864B - A kind of power distribution method and control system of extended-range vehicle - Google Patents
A kind of power distribution method and control system of extended-range vehicle Download PDFInfo
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- CN107627864B CN107627864B CN201710676730.7A CN201710676730A CN107627864B CN 107627864 B CN107627864 B CN 107627864B CN 201710676730 A CN201710676730 A CN 201710676730A CN 107627864 B CN107627864 B CN 107627864B
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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
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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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
- Y02T10/72—Electric energy management in electromobility
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Abstract
The present invention provides the power distribution methods and control system of a kind of extended-range vehicle, are related to electric vehicle technical field.Power distribution method of the invention, for when extended-range vehicle has energy request to distance increasing unit, the corresponding relationship including setting engine speed and power to obtain multiple power response policy；According to vehicle real time status, vehicle working condition condition is obtained；According to the different power response strategy of working condition control selections.Power response strategy includes that more power points response policies and power follow response policy.The present invention provides a kind of power distribution control system of extended-range vehicle, including setting unit, acquiring unit and selecting unit.The power distribution method and control system of extended-range vehicle of the invention, the different more power points response policies of working condition flexible choice and power can be according to vehicle follow one of response policy, make that the extended-range vehicle using this method is more flexible, it is new stronger to adapt to, increases contribution of the vehicle for economy.
Description
Technical field
The present invention relates to electric vehicle technical fields, power distribution method and control more particularly to a kind of extended-range vehicle
System processed.
Background technique
With the technological progress in electric car field, the mileage travelled to solve the problems, such as existing electric car is short, increases journey
Formula electric car comes into being.Stroke-increasing electric automobile be equipped with can online charging dynamics battery and distance increasing unit electric car.
The mileage travelled for greatly increasing electric car improves the short problem of pure electric automobile mileage travelled.Existing extended-range is electronic
Automobile uses single reply control strategy under different operating conditions, keeps the fuel economy of stroke-increasing electric automobile poor.
Summary of the invention
It is an object of the present invention to provide a kind of power distribution method for selecting flexible extended-range vehicle.
Another object of the present invention is just to provide a kind of control of power distribution method using above-mentioned extended-range vehicle
System.
Particularly, the present invention provides a kind of power distribution methods of extended-range vehicle, are suitable in the extended-range vehicle
When having energy request to distance increasing unit, comprising:
The corresponding relationship for setting engine speed and power, is computed and verifying obtains multiple power response policy；
According to vehicle real time status, the working condition of vehicle is obtained；
According to the different power response strategy of the working condition control selections；
Wherein, the multiple power response policy includes:
More power points response policies are the response policy that the lower multiple single power points of fuel consumption rate are formed；With
Power follows response policy, is the sound that the lower continuous power point of fuel consumption rate of real-time response and feedback is formed
Answer strategy.
Further, in more power points response policies, the revolving speed and power corresponding relationship are fuel consumption rate
Multiple discrete points when lower；
It is followed in response policy in the power, the company of the revolving speed and power corresponding relationship for fuel consumption rate when lower
Continuous curve.
Further, the working condition includes parking operating condition, wherein selects more power under the parking working condition
Point response policy.
Further, the demand that promising power battery quick charge is judged according to the parking operating condition, selects more function
The generated output point that fuel economy in rate point response policy is best, the biggish overall merit of power is optimal.
Further, the working condition further includes astern condition, wherein under the conditions of the astern condition described in selection
More power points response policies.
Further, according to the astern condition, determine that battery capacity is not enough to that extended-range vehicle is supported to complete reversing function
Can, select the lowest power point for meeting reversing low-power requirements in more power points response policies.
Further, the working condition further includes advance operating condition, wherein the advance operating condition includes being made with power battery
It is energy requirement main source, distance increasing unit as the first advance operating condition in auxiliary energy source and using distance increasing unit as energy requirement
The the second advance operating condition of main source, power battery as auxiliary energy source.
Further, under the first advance working condition, more power points response policies are selected, according to vehicle energy
Amount demand selects one of power points, and the big function of vehicle is met for power battery charging or with power battery coupling operational
Rate demand.
Further, under the second advance working condition, the power is selected to follow response policy, met in real time whole
The power request of vehicle.
Further, the present invention also provides a kind of control systems of power distribution method using extended-range vehicle, comprising:
Setting unit is computed for the corresponding relationship according to engine speed and power and verifying obtains multiple power
Response policy；
Acquiring unit, for obtaining the working condition of the vehicle, including parking operating condition, astern condition and advance operating condition；
Selecting unit, for selecting different power response strategies according to different working conditions, to meet the vehicle
The requirement of different operating conditions；
Wherein, the multiple power response strategy includes:
More power points response policies are the response policy that the lower multiple single power points of fuel consumption rate are formed；With
Power follows response policy, is the sound that the lower continuous power point of fuel consumption rate of real-time response and feedback is formed
Answer strategy.
The power distribution method and control system of extended-range vehicle of the invention are due to that can be in different works according to vehicle
The more power points response policies of condition condition flexible choice and power follow one of response policy, therefore, so that utilizing this method
Extended-range vehicle it is more flexible, adapt to new stronger, and increase the contribution of the extended-range vehicle for economy.
According to the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will be brighter
The above and other objects, advantages and features of the present invention.
Detailed description of the invention
Some specific embodiments of the present invention is described in detail by way of example and not limitation with reference to the accompanying drawings hereinafter.
Identical appended drawing reference denotes same or similar part or part in attached drawing.It should be appreciated by those skilled in the art that these
What attached drawing was not necessarily drawn to scale.In attached drawing:
Fig. 1 is the flow diagram of the power distribution method of extended-range vehicle according to an embodiment of the invention；
Fig. 2 is that power according to an embodiment of the invention follows the power of response policy and the relational graph of revolving speed；
Fig. 3 is the logical schematic of the power distribution method of extended-range vehicle according to an embodiment of the invention；
Fig. 4 is the schematic block diagram of the power distribution control system of extended-range vehicle according to an embodiment of the invention.
Specific embodiment
Fig. 1 is the flow diagram of the power distribution method of extended-range vehicle according to an embodiment of the invention.
The present invention provides a kind of power distribution methods of extended-range vehicle, are used in the extended-range vehicle to distance increasing unit
When having energy request, include the following steps:
S10 sets the corresponding relationship of engine speed and power, is computed and verifying obtains multiple power response policy；
S20 obtains the working condition of vehicle according to vehicle real time status；
S30, according to the different power response strategy of the working condition control selections；
Wherein, the multiple power response policy includes:
More power points response policies are the response policy that the lower multiple single power points of fuel consumption rate are formed；With
Power follows response policy, is the sound that the lower continuous power point of fuel consumption rate of real-time response and feedback is formed
Answer strategy.
The power distribution method of extended-range vehicle of the invention is flexible due to that can be in different working conditions according to vehicle
It selects more power points response policies and power to follow one of response policy, therefore, one can only be used compared to the prior art
Kind response policy, so that the present invention utilizes, the extended-range vehicle of this method is more flexible, it is new stronger to adapt to, and increases the increasing journey
Contribution of the formula vehicle for economy.
As a specific embodiment, in more power points response policies, the revolving speed is with power corresponding relationship
Multiple discrete points when fuel consumption rate is lower.The discrete point is all the preferable power points of discharge simultaneously, and definition should
Multiple power points are P0, P1 ... Pn.
The power of response policy and the relational graph of revolving speed are followed Fig. 2 shows a kind of power.Response is followed in the power
In strategy, the full curve of the revolving speed and power corresponding relationship for fuel consumption rate when lower.According to vehicle when the full curve
Demand, real-time response and feedback power, the curve for obtaining a P0~Pn for being computed and verifying is (such as Fig. 2 institute
Show).
Under normal circumstances, the working condition of vehicle generally comprises parking operating condition, astern condition and advance operating condition.The present embodiment
In, the control strategy of each working condition selection is all slightly different.
As a specific embodiment, when vehicle selects more power points response policies under the parking working condition.
Preferably, the demand of promising power battery quick charge is judged in the present embodiment according to the parking operating condition,
Select the generated output point that the fuel economy in more power points response policies is best, the biggish overall merit of power is optimal.It can
The generated output point is referred to as optimal power generation point.And in the particular embodiment, if the optimal power generation point that vehicle selects at this time for
P3 generate electricity point because engine revolving speed rise need a process, for avoid distance increasing unit open after directly jump into P3 generate electricity point,
It avoids the fluctuation of speed excessive and influences the decline of vehicle economy, under the working condition, control distance increasing unit from P0- > P1- > P2-
The migration path of > P3 stops until reaching optimal power generation point.Guarantee revolving speed steadily rise under the premise of, rapid transition control
In calculated optimal power generation power points.
Further, more power points response policies are selected when the vehicle is under the conditions of the astern condition.
Preferably, according to the astern condition, determine that battery capacity is not enough to that extended-range vehicle is supported to complete reversing
Function selects the lowest power point for meeting reversing low-power requirements in more power points response policies.
Further, the working condition further includes advance operating condition, wherein the advance operating condition includes being made with power battery
It is energy requirement main source, distance increasing unit as the first advance operating condition in auxiliary energy source and using distance increasing unit as energy requirement
The the second advance operating condition of main source, power battery as auxiliary energy source.
Further, under the first advance working condition, more power points response policies are selected, according to vehicle energy need
It asks, selects one of power points from n+1 point in P0~Pn, couple work for power battery charging or with power battery
Make the significant power demand for meeting vehicle.
Further, it under the second advance working condition, selects power to follow response policy, meets vehicle in real time
Power request.Pass through the actual energy requirements of the curve real-time matching vehicle of P0~Pn.
Fig. 3 shows the logical schematic of the power distribution method of extended-range vehicle of the invention under different operating conditions.Tool
Include: to body
Step D10, vehicle launch start control system, and vehicle has energy request to distance increasing unit；
Step D20 judges whether failure if there is then entering step D30 enters step D40 to distance increasing unit if not；
Step D30 determines whether to generate electricity, is, enters step D40, is not, terminates to exit；
Step D40 judges whether car speed is 0, is to illustrate to enter parking operating condition, selects more power points response policies
In optimal power generation point control strategy, terminate after execution, be not, enter step D50；
Step D50, judges whether speed direction is negative, and is then to enter astern condition, selects in more power points response policies
Lowest power point control strategy, terminate after execution, be not then to enter step D60 for advance operating condition；
Step D60 judges that vehicle whether be a power battery is unique ability source, is to select more power points response plans
Slightly, terminate after execution, be not the main source that then explanation one increases that journey is normal energy demand, power is selected to follow interdependent plan
Slightly, terminate after execution.
Fig. 4 shows the schematic block diagram of the power distribution control system of the extended-range vehicle of one embodiment of the invention.
As shown in figure 4, the power distribution control system of extended-range vehicle of the present invention, including setting unit 10, acquiring unit
20 and selecting unit 30.
Wherein, setting unit 10, for the corresponding relationship according to engine speed and power, be computed and verifying obtain it is more
Kind power response strategy；
Acquiring unit 20, for obtaining the working condition of the vehicle, the working condition includes parking operating condition, reversing work
Condition and advance operating condition；
Selecting unit 30, for selecting different power response strategies according to different working conditions, to meet the vehicle
The requirement of different operating conditions；
Wherein, the multiple power response policy includes:
More power points response policies are the response policy that the lower multiple single power points of fuel consumption rate are formed；With
Power follows response policy, is the sound that the lower continuous power point of fuel consumption rate of real-time response and feedback is formed
Answer strategy.
The power distribution control system of extended-range vehicle of the invention, since different working conditions can be according to vehicle
The more power points response policies of flexible choice and power follow one of response policy, therefore, can only make compared to the prior art
With a kind of response policy, so that the present invention utilizes, the extended-range vehicle of this method is more flexible, it is new stronger to adapt to, and increases this
Contribution of the extended-range vehicle for economy.
So far, although those skilled in the art will appreciate that present invention has been shown and described in detail herein multiple shows
Example property embodiment still without departing from the spirit and scope of the present invention, still can according to the present disclosure directly
Determine or deduce out many other variations or modifications consistent with the principles of the invention.Therefore, the scope of the present invention is understood that and recognizes
It is set to and covers all such other variations or modifications.
Claims (8)
1. a kind of power distribution method of extended-range vehicle, suitable for having energy request to distance increasing unit in the extended-range vehicle
When, comprising:
The corresponding relationship for setting engine speed and power, is computed and verifying obtains multiple power response policy；
According to vehicle real time status, the working condition of vehicle is obtained；
According to the different power response strategy of the working condition control selections；
Wherein, the multiple power response policy includes:
More power points response policies are the response policy that the lower multiple single power points of fuel consumption rate are formed；With
Power follows response policy, is the response plan that the lower continuous power point of fuel consumption rate of real-time response and feedback is formed
Slightly；
The working condition includes parking operating condition, wherein more power points response plans are selected under the parking working condition
Slightly；
The demand that promising power battery quick charge is judged according to the parking operating condition, selects in more power points response policies
Fuel economy is best, generated output point that the biggish overall merit of power is optimal.
2. power distribution method according to claim 1, which is characterized in that
In more power points response policies, the revolving speed and power corresponding relationship be when fuel consumption rate is lower it is multiple not
Continuous point；
It is followed in response policy in the power, the continuous song of the revolving speed and power corresponding relationship for fuel consumption rate when lower
Line.
3. power distribution method described in any one of -2 according to claim 1, which is characterized in that
The working condition further includes astern condition, wherein more power points responses are selected under the conditions of the astern condition
Strategy.
4. power distribution method according to claim 3, which is characterized in that
According to the astern condition, determines that battery capacity is not enough to that extended-range vehicle is supported to complete car-backing function, select described more
Meet the lowest power point of reversing low-power requirements in power points response policy.
5. power distribution method described in any one of -2 or 4 according to claim 1, which is characterized in that
The working condition further includes advance operating condition, wherein the advance operating condition includes using power battery as energy requirement master
It wants source, distance increasing unit as the first advance operating condition in auxiliary energy source and using distance increasing unit as energy requirement main source, move
Second advance operating condition of the power battery as auxiliary energy source.
6. power distribution method according to claim 5, which is characterized in that
Under the first advance working condition, more power points response policies is selected to select it according to vehicle energy demand
In a power points, the significant power demand of vehicle is met for power battery charging or with power battery coupling operational.
7. power distribution method according to claim 5, which is characterized in that
Under the second advance working condition, the power is selected to follow response policy, meets the power request of vehicle in real time.
8. a kind of control system of the power distribution method using extended-range vehicle of any of claims 1-7, packet
It includes:
Setting unit is computed for the corresponding relationship according to engine speed and power and verifying obtains multiple power response
Strategy；
Acquiring unit, for obtaining the working condition of the vehicle, including parking operating condition, astern condition and advance operating condition；
Selecting unit is different to meet the vehicle for selecting different power response strategies according to different working conditions
The requirement of operating condition；
Wherein, the multiple power response policy includes:
More power points response policies are the response policy that the lower multiple single power points of fuel consumption rate are formed；With
Power follows response policy, is the response plan that the lower continuous power point of fuel consumption rate of real-time response and feedback is formed
Slightly.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108556644B (en) * | 2018-03-20 | 2019-11-05 | 广州汽车集团股份有限公司 | A kind of hybrid vehicle distance increasing unit power follow-up control method and system |
| CN109795475B (en) * | 2019-01-21 | 2021-04-27 | 东风航盛（武汉）汽车控制***有限公司 | Range-extending hybrid power control method |
| CN112555033B (en) * | 2020-11-24 | 2023-02-21 | 北京车和家信息技术有限公司 | Method and device for determining working point of range extender |
| CN115716470A (en) * | 2022-11-28 | 2023-02-28 | 成都赛力斯科技有限公司 | Range extender control method and system based on vehicle speed |
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