CN103507804B - A kind of power output method and system - Google Patents
A kind of power output method and system Download PDFInfo
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- CN103507804B CN103507804B CN201310395358.4A CN201310395358A CN103507804B CN 103507804 B CN103507804 B CN 103507804B CN 201310395358 A CN201310395358 A CN 201310395358A CN 103507804 B CN103507804 B CN 103507804B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W20/00—Control systems specially adapted for hybrid vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W40/00—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models
- B60W40/02—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models related to ambient conditions
- B60W40/06—Road conditions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W40/00—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models
- B60W40/10—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models related to vehicle motion
- B60W40/105—Speed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W40/00—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models
- B60W40/10—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models related to vehicle motion
- B60W40/107—Longitudinal acceleration
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W40/00—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models
- B60W40/10—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models related to vehicle motion
- B60W40/109—Lateral acceleration
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W40/00—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models
- B60W40/10—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models related to vehicle motion
- B60W40/11—Pitch movement
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2520/00—Input parameters relating to overall vehicle dynamics
- B60W2520/10—Longitudinal speed
- B60W2520/105—Longitudinal acceleration
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2520/00—Input parameters relating to overall vehicle dynamics
- B60W2520/12—Lateral speed
- B60W2520/125—Lateral acceleration
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2520/00—Input parameters relating to overall vehicle dynamics
- B60W2520/16—Pitch
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2552/00—Input parameters relating to infrastructure
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Abstract
The embodiment of the present invention provides a kind of power output method and system, said method comprising the steps of: obtain hardware parameter, and selected performance indications and test road conditions; To be divided into multiple basic periods running time, and utilize described hardware parameter and test road conditions to calculate the desired value of performance indications in the basic period; According to the power standard in the selected basic period of the desired value of performance indications; Using time sequencing by the power standard combination corresponding each basic period as power output scheme; Performance module, for obtaining hardware parameter, and selected performance indications and test road conditions; To be divided into multiple basic periods running time, and utilize described hardware parameter and test road conditions to calculate the desired value of performance indications in the basic period; Standard module, for selecting the power standard in the basic period according to the desired value of performance indications; Composite module, for using time sequencing by the power standard combination corresponding each basic period as power output scheme.
Description
Technical field
The present invention relates to hybrid vehicle technology field, particularly a kind of power output method and system.
Background technology
Motor vehicle driven by mixed power (also claiming composite power vehicle) refers to the vehicle of at least two kinds of power sources of existence,The motor vehicle driven by mixed power of present stage is often using traditional explosive motor as main power source, except internal combustion is sent outOutside motivation, battery, fuel cell, solar cell or oil-electric engine group etc. are also set, withThe auxiliary power source of form of power energy supply. The modal form of current motor vehicle driven by mixed power be exactly internal combustion engine,Generator coordinates the automobile of the collaborative energy supply of battery again.
Also just because of motor vehicle driven by mixed power exists at least two kinds of power sources, every kind of power source provides dividing of powerProportioning example produces the performance indications to vehicle (such as minimum fuel consumption, maximum speed or acceleration etc.)Impact, so find the mode of desirable power proportioning and output to become the key of optimization of vehicle design.The hardware relevant to vehicle power roughly comprise engine, generator, motor, battery, gearbox,Main reducing gears etc., vehicle related hardware configures in the situation different with operating mode thorough fare, preferred power outputMode is also different. For example, discharge as object economical-type automobile to save oil consumption, and to adapt to mountain regionThe cross-country type automobile that severe road conditions are object, hardware configuration difference is very big, the performance of required main optimizationIndex is also different, so power proportioning and the way of output generally differ greatly.
The technical scheme of the power way of output is calculated in existing optimization, is mainly according to hardware setting parameter,And coordinate a kind of performance indications to set up Mathematical Modeling, the power of relatively optimizing by described calculated with mathematical modelThe way of output. But the defect of prior art is, the power output side obtaining according to above-mentioned Mathematical ModelingFormula is the state in each moment of equilibrium and the static result that obtains, can not pushing away along with the timeMove the output that changes at any time power, so the not theoretic optimum of convergence of effect also has very large optimizationSpace; In addition, once calculate can only be for a kind of hardware configuration and one for existing calculated with mathematical model methodPlant the situation of fixed performance index, if there is parameter change in Mathematical Modeling, must carry out complicated weightMultiple calculating, can not be suitable for simply widely.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of power output method and system, by movingThe output of power is associated with the passing of time, realizes and obtains dynamic power output scheme.
For achieving the above object, the present invention has following technical scheme:
A kind of power output method, said method comprising the steps of:
Obtain hardware parameter, and selected performance indications and test road conditions;
To be divided into multiple basic periods running time, and utilize described hardware parameter and test road conditions to calculateThe desired value of performance indications in the basic period;
According to the power standard in the selected basic period of the desired value of performance indications;
Using time sequencing by the power standard combination corresponding each basic period as power output scheme, and pressAccording to described power output scheme outputting power.
Described performance indications are specially:
Fuel consumption, acceleration, F-Zero or max. climb slope;
Working as described performance indications is fuel consumption, the minimum that the desired value of described performance indications is performance indicationsValue;
When described performance indications are acceleration, F-Zero or max. climb slope, the order of described performance indicationsScale value is the maximum of performance indications.
Described power standard comprises:
The energy supply proportioning of main power source and auxiliary power source in the basic period, and the operation in the period substantiallyGear.
The described power standard of formulating in the basic period according to described desired value is specially:
Pre-establish multiple testing standards, and calculate basic period build-in test standard performance indications are reachedTest value;
Obtain and the test value of the difference minimum of the desired value of performance indications, by test mark corresponding this test valueStandard is chosen to be power standard.
Described using time sequencing by the power standard combination corresponding each basic period as power output scheme toolBody is:
Select the power standard of each basic period and be combined as power output side according to time sequencing forwardCase;
Or select the power standard of each basic period and be combined as power output side according to time sequencing is reverseCase.
The described hardware parameter that obtains, and selected performance indications are specially with test road conditions:
Computing unit loaded with hardware allocation plan obtains hardware parameter from hardware configuration scheme, and loadsUnified selected performance indications and test road conditions;
The quantity of described hardware configuration scheme and computing unit is at least 2.
Described method also comprises:
The desired value of more each hardware configuration scheme performance indications, selectivity target goals value is maximum orLittle hardware configuration scheme is as preferred disposition scheme.
The described power standard of selecting in the basic period according to the desired value of performance indications is specially, according toPower standard in the selected basic period of desired value of the performance indications of preferred disposition scheme.
A kind of power output system, described system specifically comprises:
Performance module, for obtaining hardware parameter, and selected performance indications and test road conditions; To move timeBetween be divided into multiple basic periods, utilize described hardware parameter and test road conditions to calculate property in the basic periodThe desired value of energy index;
Standard module, for selecting the power standard in the basic period according to the desired value of performance indications;
Composite module, for using time sequencing by the power standard combination corresponding each basic period as powerOutput scheme, and according to described power output scheme outputting power.
Described standard module specifically comprises:
Test value unit, for pre-establishing multiple testing standards, and calculates basic period build-in test standardThe test value that performance indications are reached;
Selected cell, for obtaining and the test value of the difference minimum of the desired value of performance indications, by this testTesting standard corresponding to value is chosen to be power standard.
Described performance module comprises dispensing unit and at least two computing units arranged side by side, is specially:
Dispensing unit, for configuring performance indications, test road conditions and at least two kinds of hardware configuration schemes;
Computing unit for computing unit loaded with hardware allocation plan, obtains hard from hardware configuration schemePart parameter, and load unified selected performance indications and test road conditions; To be divided into multiple bases running timeThis period, calculate the desired value of this hardware configuration scheme performance indications within the basic period.
Described system also comprises:
Hardware preferred module, for the desired value of more each hardware configuration scheme performance indications, selectivityMaximum or the minimum hardware configuration scheme of target goals value is as preferred disposition scheme.
As seen through the above technical solutions, the beneficial effect that the present invention realizes is: by for the basic periodCalculate power standard, and power standard is combined into power output scheme according to time sequencing, realize powerOutput and time correlation connection, to adjust in real time the power output in vehicle operating, under equal hardware conditionMake the actual performance of vehicle performance more excellent, more meet the desired value of performance indications; Without large-scale redevelopmentSpecific Mathematical Modeling also computes repeatedly in a large number, has realized the preferred of hardware; And by many computing unitsParallel computation significantly improved the efficiency of computational process.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, below will be to realityThe accompanying drawing of executing required use in example or description of the Prior Art is briefly described, apparently, belowAccompanying drawing in description is some embodiments of the present invention, for those of ordinary skill in the art, notPay under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is method flow diagram described in the embodiment of the present invention;
Fig. 2 is method flow diagram described in another embodiment of the present invention;
Fig. 3 is system architecture schematic diagram described in the embodiment of the present invention.
Detailed description of the invention
For making object, technical scheme and the advantage of the embodiment of the present invention clearer, below in conjunction with thisAccompanying drawing in bright embodiment, is clearly and completely described the technical scheme in the embodiment of the present invention,Obviously, described embodiment is the present invention's part embodiment, instead of whole embodiment. Based onEmbodiment in the present invention, those of ordinary skill in the art obtain not making under creative work prerequisiteThe every other embodiment obtaining, belongs to the scope of protection of the invention.
In the present invention, described power output method and system are mainly for motor vehicle driven by mixed power. CurrentIn field, motor vehicle driven by mixed power generally just refers to so-called " oil electricity is mixed moving ", often direct with combustion in IC engineEnergy supply, as main power source, drives motor energy supply as auxiliary power source using battery; In the present invention,Also will select to there is the motor vehicle driven by mixed power of said structure as the concrete applied field of described method and systemScape.
In technical scheme of the present invention, will generate a power output scheme, be different from prior art solidFixed power proportioning and output, the output scheme of power described in the present invention will be associated with the passing of time;Can be understood as the present invention generate power output scheme in, the proportioning of power and output class be similar to one withTime is the function of variable; With dynamic power output scheme in the present invention, control the power proportioning of vehicleWith output real-time change, can during vehicle whole service, all give play to and approach optimum in theory performance.
In described power output scheme, mainly affect the output of power by two aspect factors, one is initiativelyThe energy supply proportioning of power source and auxiliary power source, another gear that is vehicle operating. Fix in hardware configurationIn situation, the transport condition of vehicle (as speed, acceleration or load) and road conditions (as road surface friction force,Road gradient or angle of turn etc.) when different, still can, by changing the output of power, namely changeVariation power proportioning and gear make vehicle give play to different performances.
Referring to a specific embodiment that described in Fig. 1 is power output method of the present invention, in conjunction with upperState application scenarios, described in the present embodiment, method comprises the following steps:
Step 101, obtain hardware parameter, and selected performance indications and test road conditions.
In the present embodiment, a kind of formulation of power output scheme, still for fixing a kind of hardware configurationMotor vehicle driven by mixed power; So the present embodiment, generating in the process of power output scheme, is first determined carHardware configuration and parameter itself, using the basis as subsequent calculations process.
Described performance indications refer to, and consider in power output scheme for a certain performance being optimizedParameter. Performance indications described in the present embodiment can be fuel consumption, acceleration, F-Zero or maximumClimbable gradient etc. For the difference of vehicular applications, it is also different that power is exported the performance indications that need to first consider.
Further, according to performance indications have for choose a kind of typical test road conditions. Due to hardwareParameter and test road conditions are two factors of major effect vehicle performance index, so namely formulate movingThe power output scheme basis of state. For example, the primary and foremost purpose of economical vehicle performance optimization is to reduce oil consumptionAmount, can select common avenue as test road conditions with reference to its purposes; High-performing car is withHigh speed per hour, as performance indications, can select the forthright of smooth cement pavement as test road conditions, to protectDemonstrate,proving its speed ability is embodied fully. For convenience of description, will be using fuel consumption as property in the present embodimentCan index.
Step 102, multiple basic periods be will be divided into running time, described hardware parameter and test road utilizedCondition calculates the desired value of performance indications in the basic period.
In the present embodiment, be associated with the passing of time for realizing power output, and vehicle is being tested to road conditionsThe time of lower operation is divided into the basic period; (concrete by hardware parameter and the test road conditions learnedOne section of test road conditions that vehicle crosses in the basic period) calculate the performance indications of vehicle in the basic periodDesired value. The duration that a basic period is set in the present embodiment was 1 second. The basic period divide fromBe similar to inwardly differential.
So-called desired value often refers to a kind of extreme value of performance indications, and the present embodiment performance index is oil consumptionAmount, so its desired value is exactly the minimum of a value of fuel consumption, more low performance is better to represent fuel consumption. When describedPerformance indications are acceleration, F-Zero or max. climb slope, and the desired value of performance indications is that performance refers toTarget maximum, represent acceleration larger, F-Zero is faster or ramp angle more performance is better.
Well-known, hardware parameter and test road conditions are to affect two topmost factors of performance indications,So under the known prerequisite of two influence factors, can learn the ruuning situation of vehicle within the basic period,Namely can calculate the desired value of performance parameter. In the present embodiment, can be directly by hardware parameterWith existing Mathematical Modeling in test road conditions two parts data substitution vehicle operating test process, thereby obtainPutting before this in the basic period minimum of a value of fuel consumption in theory.
Step 103, according to the power standard in the selected basic period of the desired value of performance indications.
In abovementioned steps, obtained the desired value of performance indications, in the present embodiment namely in theoryThe minimum of a value of fuel consumption. So further, need to select a power standard, make vehicle in test fortuneReaching or leveling off to this desired value of fuel consumption reality in row, sends out the performance of vehicle to greatest extentWave.
In the present embodiment, described power standard is mainly reflected in two aspects to the adjusting of power: basicThe energy supply proportioning of main power source and auxiliary power source in period, and the operational taps in the period substantially. OneIndividual power standard only, for the basic period of its correspondence, can make this basic according to the setting in power standardPerformance indications in period reach or convergence goes desired value. That is to say the power setting in power standardBe equipped with and operational taps, represented power proportioning and operational taps optimum in the basic period.
It should be noted that in addition, when in an adjacent picture power standard that the basic period is corresponding, for gearSetting difference, illustrate that vehicle should gear shift within a rear basic period.
The selected of the standard of power described in this step can be in conjunction with mode once:
Step 1031, pre-establish multiple testing standards, and calculate basic period build-in test standard and make performanceThe test value that index reaches.
For example, following three testing standards are set in the present embodiment:
The energy supply proportioning of standard 1, main power source and auxiliary power source is 9:1, and gear is 2 grades;
The energy supply proportioning of standard 2, main power source and auxiliary power source is 9:1, and gear is 3 grades;
The energy supply proportioning of standard 3, main power source and auxiliary power source is 7:3, and gear is 3 grades.
Testing standard, in conjunction with hardware parameter and the test road conditions of above-mentioned roger, can calculateUnder given precondition, the test value that testing standard reaches performance indications.
Step 1032, obtain and the test value of the difference minimum of the desired value of performance indications, by this test value pairThe testing standard of answering is chosen to be power standard.
In other words in the middle of the test value of all acquisitions, select one and equate with desired value or immediate testValue, using the testing standard that obtains this test value as power standard.
Step 104, using time sequencing by the power standard combination corresponding each basic period as power output sideCase, and according to described power output scheme outputting power.
Be different from prior art and calculate power output whole running times for vehicle, in the present embodimentWhy can realize power output scheme and time correlation connection, be because it was counted for the basic periodCalculation obtains described power standard, and each power standard represents power output side optimum within this basic periodFormula. The setting that segment length is 1s when basic in the present embodiment, namely each power standard only continuesThe time of 1s, to ensure that the performance of vehicle is given full play within 1s. And then, in this step will according to timeBetween order each power standard is combined into as a whole power output scheme, realized movingThe proportioning of power and gear are dynamically adjusted in time and are changed; Cause each basic period within the scope of running timeThe power output of (namely each second) is all in comparatively under ideal situation. According to described power outputScheme is carried out the output of power, makes the performance of the actual performance of vehicle more approach on the whole the target of performance indicationsValue.
It also should be noted that, in the basic period, the desired value of vehicle performance index is except depending onOutside the hardware parameter of vehicle, also depend on transport condition and the performance of last basic period vehicle. ?Vehicle performance index must be continually varying data in time, previous moment must affect after oneIn the moment, generally there will not be transition. So calculating the order of each basic period performance indications in the present embodimentScale value is to carry out successively according to the order of time. If the transport condition of known initial time and performance, pressCalculate desired value and the power standard of each basic period performance indications according to time sequencing forward, select eachThe power standard of basic period is also combined as power output scheme; If the transport condition of the known finish time canPerformance, according to desired value and the power standard of each basic period performance indications of the reverse calculating of time sequencing,The power standard of selected each basic period is also combined as power output scheme; In fact the termination of the twoFruit is consistent.
As seen through the above technical solutions, the beneficial effect that described in the present embodiment, method exists is: pass through pinTo basic period calculating power standard, and power standard is combined into power output scheme according to time sequencing,Output and the time correlation connection of realizing power are to adjust in real time the power output in vehicle operating, hard on an equal basisUnder part condition, make the actual performance of vehicle performance more excellent, more meet the desired value of performance indications.
Fig. 1 is a basic embodiment of the method for the invention, and described method is for a kind of hardware configurationVehicle, can generate one and make its a certain performance indications reach optimum power output scheme. But realOn border, if described method again in conjunction with relevant preferred version, can also be in the design process of vehicle,Play the effect of the collocation of optimizing hardware, and generate power output scheme for the selected hardware configuration obtaining.
Shown in Figure 2, described in the present embodiment, method comprises the following steps:
Step 201, computing unit loaded with hardware allocation plan obtain hardware parameter from hardware configuration scheme,And load unified selected performance indications and test road conditions.
Hardware configuration scheme in given in advance at least two in the present embodiment, every kind of hardware configuration scheme is assigned toA computing unit calculates, to further contrast the performance indications of every kind of hardware plan. SoFor unified calculating and contrast, in the present embodiment, each computing unit all refers to according to unified selected performanceMark and test road conditions are carried out follow-up calculating.
In addition, the computation requirement of corresponding multiple hardwares allocation plan in the present embodiment, so also need to arrangeMultiple computing units are to its parallel computation. From the hardware of relevant measuring and calculation system, can be in order toUse cluster computer platform, or utilize multi-core CPU to realize.
Step 202, multiple basic periods be will be divided into running time, described hardware parameter and test road utilizedCondition calculates the desired value of performance indications in the basic period.
The desired value of step 203, more each hardware configuration scheme performance indications, selectivity target goals valueMaximum or minimum hardware configuration scheme is as preferred disposition scheme.
Calculating for performance indications desired value in step 202 is consistent with previous embodiment. Each calculating is singleIts corresponding performance indications desired value is all calculated for a kind of hardware configuration scheme by unit; Same in the present embodimentTaking fuel consumption as example, calculate the minimum fuel consumption under identical road conditions for every kind of hardware configuration scheme.
And in step 203, by the performance indications desired value of every kind of hardware configuration scheme of horizontal contrast.When desired value is got the maximum of performance indications, the hardware configuration scheme optimization of select target value maximum configurationScheme; If instead desired value is gone the minimum of a value of performance indications, the hardware configuration of select target value minimumScheme is preferred disposition scheme. In the present embodiment, compare the minimum fuel consumption of its every kind hardware configuration, select itIn a kind of hardware configuration scheme of minimum fuel consumption numerical value minimum, this hardware is described under identical road conditionsIt is better that allocation plan is compared other fuel savings, is more suitable for the hardware configuration as energy-efficient vehicle. Pass throughStep 203, also computes repeatedly in a large number without the specific Mathematical Modeling of large-scale redevelopment in the present embodiment,Realize the preferred of hardware; And significantly improve the effect of computational process by the parallel computation of many computing unitsRate.
Step 204, according to the power in the selected basic period of the desired value of the performance indications of preferred disposition schemeStandard.
Step 205, using time sequencing by the power standard combination corresponding each basic period as power output sideCase, and according to described power output scheme outputting power.
In step 204～step 205, will be according to generating power output scheme for preferred disposition scheme, withRealize the hardware performance in preferred disposition scheme is given full play in actual motion. Said process and aforementionedEmbodiment is consistent, and therefore not to repeat here.
As seen through the above technical solutions, the beneficial effect that the present embodiment exists is: without changing on a large scaleMake specific Mathematical Modeling and compute repeatedly in a large number, having realized the preferred of hardware; And by the lists that calculate moreThe parallel computation of unit has significantly improved the efficiency of computational process.
Shown in Figure 3, be a specific embodiment of power output system of the present invention, this enforcementSystem described in example with embodiment illustrated in fig. 1 described in method corresponding, the two technical scheme in essenceCause, described system specifically comprises:
Performance module, for obtaining hardware parameter, and selected performance indications and test road conditions; To move timeBetween be divided into multiple basic periods, utilize described hardware parameter and test road conditions to calculate property in the basic periodThe desired value of energy index;
Standard module, for selecting the power standard in the basic period according to the desired value of performance indications;
Composite module, for using time sequencing by the power standard combination corresponding each basic period as powerOutput scheme, and according to described power output scheme outputting power.
As seen through the above technical solutions, the beneficial effect that described in the present embodiment, system exists is: pass through pinTo basic period calculating power standard, and power standard is combined into power output scheme according to time sequencing,Output and the time correlation connection of realizing power are to adjust in real time the power output in vehicle operating, hard on an equal basisUnder part condition, make the actual performance of vehicle performance more excellent, more meet the desired value of performance indications.
In addition, described system is all right in conjunction with following preferred version:
Described standard module specifically comprises:
Test value unit, for pre-establishing multiple testing standards, and calculates basic period build-in test standardThe test value that performance indications are reached;
Selected cell, for obtaining and the test value of the difference minimum of the desired value of performance indications, by this testTesting standard corresponding to value is chosen to be power standard.
Described performance module comprises dispensing unit and at least two computing units arranged side by side, is specially:
Dispensing unit, for configuring performance indications, test road conditions and at least two kinds of hardware configuration schemes;
Computing unit for computing unit loaded with hardware allocation plan, obtains hard from hardware configuration schemePart parameter, and load unified selected performance indications and test road conditions; To be divided into multiple bases running timeThis period, calculate the desired value of this hardware configuration scheme performance indications within the basic period.
Described system also comprises:
Hardware preferred module, for the desired value of more each hardware configuration scheme performance indications, selectivityMaximum or the minimum hardware configuration scheme of target goals value is as preferred disposition scheme.
The beneficial effect that above preferred version is realized is: without the specific Mathematical Modeling of large-scale redevelopment alsoCompute repeatedly in a large number, realized the preferred of hardware; And the parallel computation by many computing units is significantly carriedThe high efficiency of computational process.
The above is only the preferred embodiment of the present invention, it should be pointed out that general for the artLogical technical staff, under the premise without departing from the principles of the invention, can also make some improvement and profitDecorations, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. a power output method, is characterized in that, said method comprising the steps of:
Obtain hardware parameter, and selected performance indications and test road conditions;
To be divided into multiple basic periods running time, and utilize described hardware parameter and test road conditions to calculateThe desired value of performance indications in the basic period;
According to the power standard in the selected basic period of the desired value of performance indications;
Using time sequencing by the power standard combination corresponding each basic period as power output scheme, and pressAccording to described power output scheme outputting power;
Described using time sequencing by the power standard combination corresponding each basic period as power output scheme toolBody is:
Select the power standard of each basic period and be combined as power output side according to time sequencing forwardCase;
Or select the power standard of each basic period and be combined as power output side according to time sequencing is reverseCase.
2. method according to claim 1, is characterized in that, described performance indications are specially:
Fuel consumption, acceleration, F-Zero or max. climb slope;
Working as described performance indications is fuel consumption, the minimum that the desired value of described performance indications is performance indicationsValue;
When described performance indications are acceleration, F-Zero or max. climb slope, the order of described performance indicationsScale value is the maximum of performance indications.
3. method according to claim 1, is characterized in that, described power standard comprises:
The energy supply proportioning of main power source and auxiliary power source in the basic period, and the operation in the period substantiallyGear.
4. method according to claim 1, is characterized in that, describedly formulates base according to described desired valuePower standard in this period is specially:
Pre-establish multiple testing standards, and calculate basic period build-in test standard performance indications are reachedTest value;
Obtain and the test value of the difference minimum of the desired value of performance indications, by test mark corresponding this test valueStandard is chosen to be power standard.
5. method according to claim 1, is characterized in that, described in obtain hardware parameter, and selectedPerformance indications and test road conditions are specially:
Computing unit loaded with hardware allocation plan obtains hardware parameter from hardware configuration scheme, and loadsUnified selected performance indications and test road conditions;
The quantity of described hardware configuration scheme and computing unit is at least 2.
6. method according to claim 5, is characterized in that, described method also comprises:
The desired value of more each hardware configuration scheme performance indications, selectivity target goals value is maximum orLittle hardware configuration scheme is as preferred disposition scheme;
The described power standard of selecting in the basic period according to the desired value of performance indications is specially, according toPower standard in the selected basic period of desired value of the performance indications of preferred disposition scheme.
7. a power output system, is characterized in that, described system specifically comprises:
Performance module, for obtaining hardware parameter, and selected performance indications and test road conditions; To move timeBetween be divided into multiple basic periods, utilize described hardware parameter and test road conditions to calculate property in the basic periodThe desired value of energy index;
Standard module, for selecting the power standard in the basic period according to the desired value of performance indications;
Composite module, for using time sequencing by the power standard combination corresponding each basic period as powerOutput scheme, and according to described power output scheme outputting power;
Described using time sequencing by the power standard combination corresponding each basic period as power output scheme toolBody is:
Select the power standard of each basic period and be combined as power output side according to time sequencing forwardCase;
Or select the power standard of each basic period and be combined as power output side according to time sequencing is reverseCase.
8. system according to claim 7, is characterized in that, described standard module specifically comprises:
Test value unit, for pre-establishing multiple testing standards, and calculates basic period build-in test standardThe test value that performance indications are reached;
Selected cell, for obtaining and the test value of the difference minimum of the desired value of performance indications, by this testTesting standard corresponding to value is chosen to be power standard.
9. system according to claim 7, is characterized in that, described performance module comprises dispensing unitAt least two computing units arranged side by side, are specially:
Dispensing unit, for configuring performance indications, test road conditions and at least two kinds of hardware configuration schemes;
Computing unit for computing unit loaded with hardware allocation plan, obtains hard from hardware configuration schemePart parameter, and load unified selected performance indications and test road conditions; To be divided into multiple bases running timeThis period, calculate the desired value of this hardware configuration scheme performance indications within the basic period.
10. system according to claim 9, is characterized in that, described system also comprises:
Hardware preferred module, for the desired value of more each hardware configuration scheme performance indications, selectivityMaximum or the minimum hardware configuration scheme of target goals value is as preferred disposition scheme.
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