CN107627864A - 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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- CN107627864A CN107627864A CN201710676730.7A CN201710676730A CN107627864A CN 107627864 A CN107627864 A CN 107627864A CN 201710676730 A CN201710676730 A CN 201710676730A CN 107627864 A CN107627864 A CN 107627864A
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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 invention provides a kind of power distribution method and control system of extended-range vehicle, it is related to electric vehicle technical field.The power distribution method of the present invention, for when extended-range vehicle has energy request to distance increasing unit, including the corresponding relation of setting engine speed and power, 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 more power points response policies and power follows 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 the extended-range vehicle of the present invention, different working conditions, which can be in, according to vehicle flexibly selects more power points response policies and power to follow one kind in response policy, make that the extended-range vehicle using this method is more flexible, it is new stronger to adapt to, add contribution of the vehicle for economy.
Description
Technical field
The present invention relates to electric vehicle technical field, power distribution method and control more particularly to a kind of extended-range vehicle
System processed.
Background technology
With the technological progress in electric automobile field, to solve the problems, such as that the distance travelled of existing electric automobile is short, increase journey
Formula electric automobile arises at the historic moment.Stroke-increasing electric automobile is equipped with can the electric automobile of charging dynamics battery and distance increasing unit online.
The distance travelled of electric automobile is greatly increased, improves the problem of pure electric automobile distance travelled is short.Existing extended-range is electronic
Automobile uses single reply control strategy under different operating modes, makes the fuel economy of stroke-increasing electric automobile poor.
The content 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 the power distribution method using above-mentioned extended-range vehicle
System.
Especially, the invention provides a kind of power distribution method of extended-range vehicle, suitable in the extended-range car
When having energy request to distance increasing unit, including：
The corresponding relation of engine speed and power is set, is computed and checking 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, it is the response policy that the relatively low multiple single power points of fuel consumption are formed；With
Power follows response policy, the sound formed for the relatively low continuous power point of the fuel consumption of real-time response and feedback
Should strategy.
Further, in more power points response policies, the rotating speed and power corresponding relation are fuel consumption
Multiple discrete points when relatively low；
In the power follows response policy, the rotating speed and the company that power corresponding relation is when fuel consumption is relatively low
Continuous curve.
Further, the working condition includes parking operating mode, wherein, select more power under the parking working condition
Point response policy.
Further, the demand of promising electrokinetic cell quick charge is judged according to the parking operating mode, selects more work(
The optimal generated output point of fuel economy in rate point response policy is optimal, power is larger overall merit.
Further, the working condition also 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, judge that battery electric quantity is not enough to support extended-range vehicle to complete reversing work(
Can, select the lowest power point for meeting reversing low-power requirements in more power points response policies.
Further, the working condition also includes advance operating mode, wherein, the advance operating mode includes making with electrokinetic cell
For energy requirement main source, distance increasing unit energy requirement is used as the first advance operating mode in auxiliary energy source and using distance increasing unit
The the second advance operating mode of main source, electrokinetic cell as auxiliary energy source.
Further, under the first advance working condition, more power points response policies are selected, according to vehicle energy
Amount demand, one of power points is selected, the big work(of vehicle is met for power battery charging or with electrokinetic cell coupling operational
Rate demand.
Further, under the second advance working condition, select the power to follow response policy, meet in real time whole
The power request of car.
Further, the present invention also provides a kind of control system of the power distribution method using extended-range vehicle, including:
Setting unit, for the corresponding relation according to engine speed and power, it is computed and checking obtains multiple power
Response policy；
Acquiring unit, for obtaining the working condition of the vehicle, including parking operating mode, astern condition and advance operating mode；
Selecting unit, for selecting different power response strategies according to different working conditions, to meet the vehicle
The requirement of different operating modes；
Wherein, the multiple power response strategy includes：
More power points response policies, it is the response policy that the relatively low multiple single power points of fuel consumption are formed；With
Power follows response policy, the sound formed for the relatively low continuous power point of the fuel consumption of real-time response and feedback
Should strategy.
The power distribution method and control system of the extended-range vehicle of the present invention according to vehicle due to that can be in different works
Condition condition flexibly selects more power points response policies and power to follow one kind in response policy, therefore so that utilize this method
Extended-range vehicle it is more flexible, adapt to new stronger, and add the contribution of the extended-range vehicle for economy.
According to the accompanying drawings will be brighter to the detailed description of the specific embodiment of the invention, those skilled in the art
Above-mentioned and other purposes, the advantages and features of the present invention.
Brief description of the drawings
Some specific embodiments of the present invention are described in detail by way of example, and not by way of limitation with reference to the accompanying drawings hereinafter.
Identical reference denotes same or similar part or part in accompanying drawing.It should be appreciated by those skilled in the art that these
What accompanying drawing was not necessarily drawn to scale.In accompanying drawing：
Fig. 1 is the schematic flow sheet 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 graph of a relation of rotating 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.
Embodiment
Fig. 1 is the schematic flow sheet of the power distribution method of extended-range vehicle according to an embodiment of the invention.
The invention provides a kind of power distribution method of extended-range vehicle, in the extended-range vehicle to distance increasing unit
When having energy request, comprise the following steps：
S10, the corresponding relation of engine speed and power is set, is computed and checking obtains multiple power response policy；
S20, according to vehicle real time status, obtain the working condition of vehicle；
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, it is the response policy that the relatively low multiple single power points of fuel consumption are formed；With
Power follows response policy, the sound formed for the relatively low continuous power point of the fuel consumption of real-time response and feedback
Should strategy.
The power distribution method of the extended-range vehicle of the present invention is flexible due to that can be in different working conditions according to vehicle
Select more power points response policies and power to follow one kind in response policy, therefore, compared with prior art in can only use one
Kind response policy so that the extended-range vehicle of the invention using this method is more flexible, it is new stronger to adapt to, and adds the increasing journey
Contribution of the formula vehicle for economy.
As a specific embodiment, in more power points response policies, the rotating speed is with power corresponding relation
Multiple discrete points when fuel consumption is relatively low.The discrete point is all the preferable power points of discharge simultaneously, and definition should
Multiple power points are P0, P1 ... Pn.
Fig. 2 shows that a kind of power follows the power of response policy and the graph of a relation of rotating speed.Response is followed in the power
In strategy, the rotating speed and the full curve that power corresponding relation is when fuel consumption is relatively low.According to car during the full curve
Demand, real-time response and feedback power, the curve for obtaining a P0~Pn for being computed and verifying to obtain is (such as Fig. 2 institutes
Show).
Generally, the working condition of vehicle generally comprises parking operating mode, astern condition and advance operating mode.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 electrokinetic cell quick charge is judged in the present embodiment according to the parking operating mode,
Select the optimal generated output point of the overall merit that the fuel economy in more power points response policies is optimal, power is larger.Can
The generated output point is referred to as optimal power generation point.And in the particular embodiment, if now vehicle selection optimal power generation point for
P3 generatings point, because the rotating speed of engine, which rises, needs a process, to avoid distance increasing unit from directly jumping into P3 generatings point after opening,
Avoid the fluctuation of speed excessive and influence the decline of vehicle economy, under the working condition, control distance increasing unit from P0->P1->P2-
>P3 migration path stops until reaching optimal power generation point.Ensure rotating speed steadily rise on the premise of, rapid transition control
In the optimal power generation power points that calculates.
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, judge that battery electric quantity is not enough to support extended-range vehicle to complete reversing
Function, select the lowest power point for meeting reversing low-power requirements in more power points response policies.
Further, the working condition also includes advance operating mode, wherein, the advance operating mode includes making with electrokinetic cell
For energy requirement main source, distance increasing unit energy requirement is used as the first advance operating mode in auxiliary energy source and using distance increasing unit
The the second advance operating mode of main source, electrokinetic cell as auxiliary energy source.
Further, under the first advance working condition, more power points response policies are selected, according to vehicle energy need
Ask, select one of power points from n+1 point in P0~Pn, work is coupled for power battery charging or with electrokinetic cell
Make the significant power demand for meeting vehicle.
Further, under the second advance working condition, select power to follow response policy, meet vehicle in real time
Power request.Pass through the actual energy requirements of P0~Pn curve real-time matching vehicle.
Fig. 3 shows the logical schematic of power distribution method of the extended-range vehicle of the present invention under different operating modes.Tool
Include body：
Step D10, vehicle launch start control system, and vehicle has energy request to distance increasing unit；
Step D20, judge distance increasing unit whether failure, if then entering step D30, step D40 is entered if not；
Step D30, determine whether to generate electricity, be then to enter step D40, be not to terminate to exit；
Step D40, judge whether car speed is 0, be that then explanation enters parking operating mode, select more power points response policies
In optimal power generation point control strategy, terminate after execution, be not then to enter step D50；
Step D50, judge whether speed direction is negative, be then to enter astern condition, select in more power points response policies
Lowest power point control strategy, terminate after execution, it is then advance operating mode not to be, into step D60；
Step D60, judge whether vehicle is that an electrokinetic cell is unique ability source, be 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 demand energy, select power 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 relation according to engine speed and power, be computed and checking 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 mode, reversing work
Condition and advance operating mode；
Selecting unit 30, for selecting different power response strategies according to different working conditions, to meet the car
The requirement of different operating modes；
Wherein, the multiple power response policy includes：
More power points response policies, it is the response policy that the relatively low multiple single power points of fuel consumption are formed；With
Power follows response policy, the sound formed for the relatively low continuous power point of the fuel consumption of real-time response and feedback
Should strategy.
The power distribution control system of the extended-range vehicle of the present invention, due to different working conditions can be according to vehicle
Flexibly select more power points response policies and power to follow one kind in response policy, therefore, compared with prior art in can only make
With a kind of response policy so that the extended-range vehicle of the invention using this method is more flexible, it is new stronger to adapt to, and adds this
Contribution of the extended-range vehicle for economy.
So far, although those skilled in the art will appreciate that detailed herein have shown and described multiple showing for the present invention
Example property embodiment, still, still can be direct according to present disclosure without departing from the spirit and scope of the present invention
It is determined that or derive many other variations or modifications for meeting the principle of the invention.Therefore, the scope of the present invention is understood that and recognized
It is set to and covers other all these variations or modifications.
Claims (10)
- A kind of 1. power distribution method of extended-range vehicle, suitable for having energy request to distance increasing unit in the extended-range vehicle When, including：The corresponding relation of engine speed and power is set, is computed and checking 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, it is the response policy that the relatively low multiple single power points of fuel consumption are formed；WithPower follows response policy, the response plan formed for the relatively low continuous power point of the fuel consumption of real-time response and feedback Slightly.
- 2. power distribution method according to claim 1, it is characterised in thatIn more power points response policies, the rotating speed and power corresponding relation be when fuel consumption is relatively low it is multiple not Continuous point；In the power follows response policy, the rotating speed and the continuous song that power corresponding relation is when fuel consumption is relatively low Line.
- 3. power distribution method according to claim 1 or 2, it is characterised in thatThe working condition includes parking operating mode, wherein, more power points response plans are selected under the parking working condition Slightly.
- 4. power distribution method according to claim 3, it is characterised in thatThe demand of promising electrokinetic cell quick charge is judged according to the parking operating mode, is selected in more power points response policies Fuel economy is optimal, generated output point that overall merit that power is larger is optimal.
- 5. according to the power distribution method any one of claim 1-4, it is characterised in thatThe working condition also includes astern condition, wherein, more power points responses are selected under the conditions of the astern condition Strategy.
- 6. power distribution method according to claim 5, it is characterised in thatAccording to the astern condition, judge that battery electric quantity is not enough to support extended-range vehicle to complete car-backing function, select described more Meet the lowest power point of reversing low-power requirements in power points response policy.
- 7. according to the power distribution method any one of claim 1-6, it is characterised in thatThe working condition also includes advance operating mode, wherein, the advance operating mode includes being used as energy requirement master using electrokinetic cell Want source, distance increasing unit as the first advance operating mode in auxiliary energy source and using distance increasing unit as energy requirement main source, be dynamic Second advance operating mode of the power battery as auxiliary energy source.
- 8. power distribution method according to claim 7, it is characterised in thatUnder the first advance working condition, more power points response policies are selected, according to vehicle energy demand, select it In a power points, the significant power demand of vehicle is met for power battery charging or with electrokinetic cell coupling operational.
- 9. power distribution method according to claim 7, it is characterised in thatUnder the second advance working condition, select the power to follow response policy, meet the power request of vehicle in real time.
- 10. a kind of control system of the power distribution method of extended-range vehicle using any one of claim 1-9, bag Include:Setting unit, for the corresponding relation according to engine speed and power, it is computed and checking obtains multiple power response Strategy；Acquiring unit, for obtaining the working condition of the vehicle, including parking operating mode, astern condition and advance operating mode；Selecting unit, for selecting different power response strategies according to different working conditions, to meet that the vehicle is different The requirement of operating mode；Wherein, the multiple power response policy includes：More power points response policies, it is the response policy that the relatively low multiple single power points of fuel consumption are formed；WithPower follows response policy, the response plan formed for the relatively low continuous power point of the fuel consumption of real-time response and feedback Slightly.
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| 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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