CN103183021B - Be used for the method for the electric discharge moment of torsion of controlling drive motors - Google Patents
Be used for the method for the electric discharge moment of torsion of controlling drive motors Download PDFInfo
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Abstract
The present invention relates to the method for the electric discharge moment of torsion for control drive motors at hybrid vehicle, the car load power demand that the SOC that the method is included in electrokinetic cell is greater than the first predetermined threshold and hybrid vehicle is greater than in 0 situation, according to the size of SOC, electric discharge moment of torsion is set; In the situation that SOC is less than the first predetermined threshold, by car load power demand and the second predetermined threshold comparison; In the situation that car load power demand is greater than the second predetermined threshold, within the scope of described car load power demand, determine multiple electric discharge moments of torsion; Calculate corresponding with described multiple electric discharge moments of torsion respectively multiple engine torques according to car load power demand; The multiple dynamical system gross efficiencys corresponding with electric discharge torque arithmetic according to described paired engine torque; According to described multiple dynamical system gross efficiencys, described electric discharge moment of torsion is set.
Description
Technical field
The invention belongs to hybrid vehicle control field, and relate to particularly a kind of at hybrid vehicleControl the method for the electric discharge moment of torsion of drive motors.
Background technology
Current generally use fuel engines automobile storage in all disadvantages, except fuel oil service efficiency always on the low side withOutward, the severe contamination that more seriously discharge of automobile exhaust fumes causes environment. Since the nineties in 20th century, countries in the world pairThe cry that improves environment grows to even greater heights, and electric automobile is also all entertained to very large expectation thereupon. But, although people generally believeBe the world of electric automobile future, but current battery technology problem still hampers the large-scale application of electric automobile. ByIn the energy density and gasoline phase ratio hundreds of times of battery, reach far away the desired numerical value of people, expert estimate 10 years withInterior electric automobile also cannot replace fuel engines automobile (unless fuel cell technology has important breakthrough). As pure electric automobileTransition, engineers has been developed hybrid vehicle (Hybrid-ElectricVehicel, abbreviation HEV). So-called mixing movedPower is combined in motor and auxiliary power unit on an automobile and does driving force exactly, is exactly briefly to allow a part of powerBorn by battery-drive motors system. This hybrid power scheme had both been brought into play engine continuous working period length, good dynamic propertyAdvantage, can bring into play again pollution-free, the low noise benefit of battery-drive motors system, the thermal efficiency of automobile can improve 10%Above, toxic emission is also improved greatly.
Generally in hybrid vehicle, use high-tension battery, it can play the effect of stored energy and power-assisted. CanProvide moment of torsion to control the charging and discharging state of high-tension battery by drive motors. For example, drive motors can provide electric discharge moment of torsionHigh-tension battery is discharged. In addition, also can be by the electric discharge moment of torsion of raising drive motors indirectly to lower engine torqueMake it be operated in the region that efficiency is higher. Existing hybrid vehicle drive scheme is in the time regulating the electric discharge moment of torsion of drive motorsFollowing two problems of ubiquity: the one, do not consider the whole efficiency optimization of dynamical system when car load power demand is very large; TwoNot have to consider, in the time that the SOC of electrokinetic cell is very high, it is carried out to necessary control of discharge. Partly due to above these reasons,Current hybrid vehicle is all also not fully up to expectations at aspects such as operating efficiency, energy consumption and batteries.
Thereby, to having very large need for the method for rationally controlling the electric discharge moment of torsion of drive motors at hybrid vehicleAsk.
Summary of the invention
The object of this invention is to provide a kind of method reasonably to regulate the electric discharge of drive motors in hybrid vehicleMoment of torsion operating point, thus realize the optimization of automobile dynamic system whole efficiency and extend battery.
The invention provides for achieving the above object a kind of for control the electric discharge of drive motors at hybrid vehicleThe method of moment of torsion, described electric discharge moment of torsion is the turning round of the electrokinetic cell electric discharge that makes described hybrid vehicle of described drive motorsSquare, described method comprises: by the SOC of described electrokinetic cell and the first predetermined threshold comparison; Be greater than the first predetermined threshold at described SOCThe car load power demand of value and described hybrid vehicle is greater than in 0 situation, described in arranging according to the size of described SOCElectric discharge moment of torsion; In the situation that described SOC is less than the first predetermined threshold, by described car load power demand and the second predetermined threshold ratio; In the situation that described car load power demand is greater than the second predetermined threshold, within the scope of described car load power demand, determine manyIndividual electric discharge moment of torsion; Calculating corresponding with described multiple electric discharge moments of torsion respectively multiple engines according to described car load power demand turns roundSquare; The multiple dynamical system gross efficiencys corresponding with electric discharge torque arithmetic according to described paired engine torque; According to described manyIndividual dynamical system gross efficiency arranges described electric discharge moment of torsion.
Preferably, according to the size of described SOC, described electric discharge moment of torsion being set comprises according to described SOC and tables look-up reallyFixed described electric discharge moment of torsion, described form be record by test, in the time that described SOC is greater than the first predetermined threshold described in SOC andThe relation of described electric discharge moment of torsion.
Preferably, described in the time that SOC is greater than the first predetermined threshold described in the relation of SOC and described electric discharge moment of torsion comprise electric dischargeMoment of torsion increases with the increase of SOC, and the rate of change of electric discharge moment of torsion also increases with the increase of SOC.
Preferably, according to the size of described SOC, described electric discharge moment of torsion is set and comprises that described electric discharge moment of torsion is set to notExceed described car load power demand, and be no more than on drive motors external characteristic curve and the current rotating speed pair of described drive motorsThe maximum drive Motor torque of answering.
Preferably, described total according to the described paired engine torque multiple dynamical systems corresponding with electric discharge torque arithmeticEfficiency comprises according to following formula calculates described dynamical system gross efficiency:
WhereinFor described dynamical system gross efficiency,For the actual output of described enginePower,For the discharge power of described drive motors,For the rotating speed of described drive motors,For the power conversion coefficient of described drive motors,WithBe respectively described engine and described drive motorsActual efficiency,For described electric discharge moment of torsion.
Preferably, described calculate according to described car load power demand corresponding with described multiple engine torques multiple respectivelyElectric discharge moment of torsion comprises that the following formula of basis calculates:
WhereinFor described car load power demand,For described engine torque,For described electric discharge moment of torsion,For the rotating speed of described drive motors and the rotating speed of described engine itRatio.
Preferably, within the scope of described car load power demand, determine that multiple electric discharge moments of torsion comprise: determine described drive motorsCurrent accessible maximum electric discharge moment of torsion; Smaller value in described car load power demand and described maximum electric discharge moment of torsion is defined as; [0,] in get described multiple electric discharge moment of torsion with predetermined space.
In some embodiments of the invention, describedly according to described multiple dynamical system gross efficiencys, described electric discharge is set and turns roundSquare comprises that described electric discharge moment of torsion is set to and maximum dynamical system gross efficiencyCorresponding electric discharge moment of torsion.
In other embodiment of the present invention, describedly according to described multiple dynamical system gross efficiencys, described electric discharge is setMoment of torsion comprises: the dynamical system gross efficiency that is 0 o'clock by described electric discharge moment of torsion is defined as baseline system efficiency; WillWithBetween difference and the 3rd predetermined threshold comparison; Be greater than the 3rd predetermined threshold in described differenceIn situation, described electric discharge moment of torsion is set to and described maximum power system total efficiencyCorresponding electric discharge moment of torsion.
Preferably, describedly according to described multiple dynamical system gross efficiencys, described electric discharge moment of torsion is set and also comprises: describedDifference is less than in the situation of the 3rd predetermined threshold described difference and the 4th predetermined threshold comparison; Be less than described in described differenceIn the situation of four predetermined thresholds, described electric discharge moment of torsion is set to and described baseline system efficiencyCorresponding electric discharge is turned roundSquare, wherein said the 4th predetermined threshold is less than described the 3rd predetermined threshold.
Preferably, describedly according to described multiple dynamical system gross efficiencys, described electric discharge moment of torsion is set and also comprises: describedDifference is greater than described electric discharge moment of torsion in the situation of described the 4th predetermined threshold and is set to the electric discharge moment of torsion of previous moment.
Method provided by the present invention can be by automobile dynamic system the whole efficiency in the time that car load power demand is very large withAnd two factors of the SOC of battery all take reasonably to regulate the electric discharge moment of torsion operating point of drive motors into account, thereby make to mixThe whole efficiency of power automobile power system obtains optimization, and extended the service life of battery, but also greatly reduceOil consumption.
Brief description of the drawings
Below with reference to drawings and Examples, technical scheme of the present invention is described in further detail.
Fig. 1 schematically shows the dynamical system knot of the hybrid vehicle that is applicable to method provided by the present inventionStructure.
Fig. 2 schematically shows according to an embodiment of the invention for controlling the electric discharge moment of torsion of drive motorsThe flow chart of method.
Fig. 3 schematically shows according to an embodiment of the invention for being greater than predetermined threshold in car load power demandWhen value, determine the flow chart of the method for electric discharge moment of torsion.
Detailed description of the invention
For above-mentioned purpose of the present invention, feature and advantage are become apparent more, below in conjunction with the drawings and specific embodimentsThe present invention is described in further detail. It should be noted that, the each structure in accompanying drawing is schematic instead of determinate, withMake those of ordinary skill in the art understand best principle of the present invention, it is not necessarily drawn in proportion.
The dynamical system of existing hybrid vehicle can be divided into tandem, parallel and series-parallel connection according to power transmission routeThree kinds of formulas. Parallel way refers to taking engine as active force, and motor is as the structure (Parallel of auxiliary powerHybrid). This mode is mainly travelled with motor driven, produces very strong driving force while utilizing restarting that motor hasFeature, in the situation that the consumption of the engine fuel such as vehicle starting, acceleration is larger, reduces by the mode of motor assistive driveThe oil consumption of engine. This mode relatively simple for structure only need to increase and be used for the motor and the power supply that drive on automobile.
In hybrid vehicle application, selecting of drive motors should be followed high-performance, low weight, undersized principle,And it should be able to have higher efficiency in the wider range of speeds. In addition, also should consider whether it can realize two-way controlMake, whether can reclaim braking regenerated energy etc. At present, the electric drive system that hybrid vehicle uses mainly contains direct currentTwo kinds of motor driven systems and AC machine drive systems. The advantage of dc motor is that mechanical property is good, speed governing convenient andPerformance is good. Due to direct current generator drive system have cost low, be easy to the advantages such as stepless speed control, controller are simple, technology maturation,Once on electric automobile, be used widely, but because dc motor needs brush and commutator commutation limit in runningMake the further raising of motor speed. Along with the development of technology, direct current generator drive system is progressively driven by more advanced interchangeMoving system replaces. ACasynchronous motor drive system architecture is simple, sturdy and durable, with low cost, rev limit is high, adoptsVector control technology, its dynamic property can compare favourably with DC motor speed-regulating.
In Fig. 1, schematically show a kind of parallel connection type automobile dynamic system structure that method of the present invention is suitable for,Wherein adopt above-mentioned AC machine drive system. As shown in Figure 1, drive motors is in parallel with engine by belt, and high pressureBattery provides driving-energy by inverter to drive motors, and the direct current that this inverter is used to battery to provide changesFor for example 220 volts of alternating currents. High-tension battery can be lead-acid battery, Ni-Cr battery, iron cell or Ni-MH battery etc. Drive motorsBe delivered to semiaxis and wheel with the power of engine by gearbox. The control of discharge of hybrid power system will relate to drive motorsTorque adjustment, this torque adjustment should be considered the driving force of high-tension battery state and drive motors, so that dynamical systemWhole efficiency be optimized and effectively improve energy utilize efficiency. Specifically describe this below in conjunction with Fig. 2 and Fig. 3Bright the provided method relevant to the electric discharge torque adjustment of drive motors.
Fig. 2 schematically shows according to an embodiment of the invention for controlling the electric discharge moment of torsion of drive motorsThe flow chart of method.
First, in step S101, by the SOC of high-tension battery and predetermined SOC threshold value THRED1Relatively. SOC(StateOfCharge) refer to the state-of-charge of battery, it is defined particularly after battery uses a period of time or lies idle for a long timeResidual capacity and its are full of the ratio of the capacity under electricity condition completely, and conventional percentage represents. 100% SOC represents that battery isFull state. By the comparison in step S101, can determine that whether the electric power not yet being used in Vehicular dynamic battery is too highAnd should suitably be discharged. The SOC threshold value THRED that this is predetermined1Can for example be set to 90% ~ 95%.
When comparative result shows that battery SOC is higher than predetermined threshold THRED1Situation under, the flow process shown in Fig. 1 will enter stepRapid S103 by the electric discharge moment of torsion of drive motors is set according to current SOC, its objective is the residue that makes battery in this stepCapacity can be consumed quickly. Those of ordinary skill in the art will readily appreciate that, by the electric discharge moment of torsion of drive motors is setAnother necessary condition of accelerating battery discharge is that the integral power demand of now automobile is greater than 0, that is to say that automobile just locatesIn carrying out state. Car load power demand is provided jointly by engine torque and drive motors electric discharge moment of torsion two parts, thereby at thisIn the situation of kind, will reduce the demand of engine torque, or be even 0, thereby reduce oil consumption.
The more important thing is, the moment of torsion operating point of initiatively improving drive motors in the time that the state-of-charge SOC of battery is very high is to electricityDischarge and will be very beneficial for realizing braking energy recovery in hybrid vehicle in pond. It is modern electronic that braking energy reclaimsOne of automobile and hybrid electric vehicle important technology are also their important feature. On general internal-combustion engines vehicle, when vehicle subtractsWhen speed, braking, the kinergety of vehicle changes heat energy into by brakes, and discharges in atmosphere. And at electric automobileOn hybrid electric vehicle, this kinergety being wasted can be changed into electric energy and is stored in by braking energy recovery technologyIn battery, and be further converted to driving-energy. As can be seen here, in the time that the SOC of battery is too high, not having space to store canThe energy reclaiming, causes very large waste, and in the present invention by SOC is monitored and active adjustment electric discharge moment of torsion verySolve well this problem.
In practice, can in step S103, table look-up and determine electric discharge moment of torsion according to the SOC of battery. Described formCan be recorded in advance and be stored in the memory of vehicle electronic control unit ECU by test, it have comprised at SOC largeIn THRED1Time SOC and drive motors electric discharge moment of torsion corresponding relation. Preferably, such corresponding relation should comprise that SOC moreGreatly, the electric discharge moment of torsion of its correspondence is larger, and the rate of change of electric discharge moment of torsion is also larger. That is to say, in the larger situation of SOCUnder, electric discharge moment of torsion is configured such that to battery can discharge sooner, thereby its SOC value is roughly adjusted to THRED1Level. AsThat above mentions is such, and the setting of electric discharge moment of torsion also should be limited to car load power demand, can not exceed turning round of Integral automobileSquare demand. In addition, also should consider the driving force of drive motors itself, can not exceed on drive motors external characteristic curve and itThe maximum drive Motor torque that current rotating speed is corresponding.
When showing battery SOC, comparative result is less than predetermined threshold THRED1Situation under, the flow process shown in Fig. 1 will enter stepRapid S105, in this step and then by car load power demand and predetermined threshold THRED2Relatively, to determine whether current automobile is locatedIn the state of large power demand.
When definite current car load power demand is greater than THRED2Time, continue execution step S107 ~ S113 with really finalDetermine the torque setting of drive motors, wherein will be included within the scope of car load power demand determine multiple electric discharge moments of torsion, according to car loadPower demand calculate respectively multiple engine torques corresponding with the plurality of electric discharge moment of torsion, according to paired engine torque with putMultiple dynamical system gross efficiencys corresponding to electricity torque arithmetic and electric discharge moment of torsion is set according to multiple dynamical system gross efficiencys. UnderFace illustrates these steps in connection with the embodiment shown in Fig. 3.
Fig. 3 schematically shows according to an embodiment of the invention for being greater than predetermined threshold in car load power demandWhen value, determine the flow chart of the method for electric discharge moment of torsion.
In order to determine multiple engine torques as shown at step S105, first the embodiment shown in Fig. 3 existsIn step S201, determine the current available maximum electric discharge of drive motors moment of torsion. As is known to persons skilled in the art, this canTo obtain in real time by supervising device, wherein can discharge power and the maximum drive of drive motors by what consider batteryThe factors such as power.
Then, in step S203, determine the interval of an electric discharge moment of torsion. As mentioned hereinbefore, wholeCar power demand is provided jointly by engine torque and drive motors electric discharge moment of torsion two parts, is also engine torque or driving electricityThe electric discharge moment of torsion of machine all can not exceed car load power demand, and this is the condition that must meet. Therefore, in enforcements more of the present inventionIn example, current car load power demand and the smaller value in determined maximum electric discharge moment of torsion in step S201 can be determinedFor, and interval is set as [0,]。
As shown in step S205, and then can in determined interval, get multiple electric discharge moments of torsion by predetermined space, these are putElectricity moment of torsion can be considered to meet current power demand and meet battery status and the performance limitations of drive motors own simultaneouslyAlternative electric discharge moment of torsion.
And then, in step S207, calculate with before multiple engine torques corresponding to determined multiple electric discharge moments of torsion.In certain embodiments, can utilize the relation in following formula to calculate:
WhereinFor car load power demand;For engine torque;For electric discharge moment of torsion;For the ratio of the rotating speed of drive motors and the rotating speed of engine. From this formulaAlso can see, in the time that the electric discharge moment of torsion of drive motors increases, will decline to the demand of engine torque, thereby at engineOn efficiency curve, its moment of torsion operating point can move down into the region that efficiency is higher.
After obtaining multipair corresponding engine torque and electric discharge moment of torsion, will in step S209, calculate multiple dynamical systemsSystem gross efficiency, also synthetically considers by the efficiency of engine and the efficiency of drive motors. Side provided by the present inventionIn method, key is and does not require that any one in engine or drive motors reaches its optimum efficiency, but will make wholeIt is best that the gross efficiency of dynamical system reaches. In some embodiments of the invention, can calculate according to following formula:
WhereinFor dynamical system gross efficiency;For the real output of engine;For the discharge power of drive motors;For the rotating speed of drive motors;
，Be respectively the actual efficiency of drive motors and engine;For power conversion coefficient;For electric discharge moment of torsion.
After calculating multiple dynamical system gross efficiencys via step S209, will put according to these multiple result settingsElectricity moment of torsion, as shown in the step S113 in Fig. 2. In some embodiments of the invention, can be directly by the electric discharge of drive motorsMoment of torsion be set to described multiple results in maximum dynamical system gross efficiencyCorresponding electric discharge moment of torsion, obviously thisTime car load dynamical system by the efficiency operation with very high.
In the embodiment shown in fig. 3, also increase extra CL Compare Logic and prevented optimal discharge moment of torsion retinue turnerThe variation of condition and too fast variation, this is shown in step S211 ~ S221.
For this reason, first in step S211, determine baseline system efficiency, this baseline system efficiency can be by fixedJustice is that electric discharge moment of torsion is the dynamical system gross efficiency of 0 o'clock.
Then, in step S213 by maximum dynamical system gross efficiencyWith thisBetween poorValue and predetermined threshold THRED3Relatively.
Be greater than THRED in described difference3Situation under, in step S217 electric discharge moment of torsion be set to maximum power beSystem gross efficiencyCorresponding electric discharge moment of torsion.
Be less than THRED in described difference3Situation under, in step S215, continue itself and another predetermined threshold THRED4Relatively, wherein THRED4<THRED3。
Be less than THRED in described difference4Situation under, in step S221, electric discharge moment of torsion is set to imitate with baseline systemRateCorresponding electric discharge moment of torsion, namely electric discharge moment of torsion is set to 0.
Be greater than THRED in described difference4Situation under, in step S219, electric discharge moment of torsion is set to previous moment and makes electricityThe electric discharge moment of torsion using when tank discharge. That is to say, in the time that described difference is in this interval range, can be temporarily not to electric dischargeMoment of torsion changes, and makes its state before keeping, too fast and produce the shake of power source moment of torsion with the change in torque of avoiding dischargingWith torque responsive problem, and then experience is driven in impact.
More than enumerated some specific embodiments and illustrated in detail the present invention, these a few examples are only for explanation principle of the present inventionAnd the use of embodiment, but not limitation of the present invention, without departing from the spirit and scope of the present invention, this areaThose of ordinary skill can also make various distortion and improvement. Therefore all technical schemes that are equal to all should belong to of the present inventionCategory is also by every claim of the present invention is limited.
Claims (11)
1. for control the method for electric discharge moment of torsion for drive motors at hybrid vehicle, described in described electric discharge moment of torsion isThe moment of torsion of the electrokinetic cell electric discharge that makes described hybrid vehicle of drive motors, is characterized in that, described method comprises:
By the SOC of described electrokinetic cell and the first predetermined threshold comparison;
The car load power demand that is greater than the first predetermined threshold and described hybrid vehicle at described SOC is greater than 0,According to the size of described SOC, described electric discharge moment of torsion is set;
In the situation that described SOC is less than the first predetermined threshold, by described car load power demand and the second predetermined threshold comparison;
In the situation that described car load power demand is greater than the second predetermined threshold,
Within the scope of described car load power demand, determine multiple electric discharge moments of torsion;
Calculate corresponding with described multiple electric discharge moments of torsion respectively multiple engine torques according to described car load power demand;
The multiple dynamical system gross efficiencys corresponding with electric discharge torque arithmetic according to described paired engine torque;
According to described multiple dynamical system gross efficiencys, described electric discharge moment of torsion is set.
2. the method for claim 1, is characterized in that,
Wherein arrange described in described electric discharge moment of torsion comprises and table look-up to determine according to described SOC according to the size of described SOCElectric discharge moment of torsion, for the form of tabling look-up be record by test and this form be included in described SOC be greater than first be scheduled toThe relation of SOC and described electric discharge moment of torsion described in when threshold value.
3. method as claimed in claim 2, is characterized in that, wherein said in the time that SOC is greater than the first predetermined threshold described in SOCComprise that with the relation of described electric discharge moment of torsion electric discharge moment of torsion increases with the increase of SOC, and the rate of change of electric discharge moment of torsion is also with SOCIncrease and increase.
4. method as claimed in claim 3, is characterized in that, wherein according to the size of described SOC, described electric discharge is set and turns roundSquare comprises that described electric discharge moment of torsion is set to be no more than described car load power demand, and is no more than drive motors external characteristic curveThe upper maximum drive Motor torque corresponding with the current rotating speed of described drive motors.
5. the method for claim 1, is characterized in that, wherein said according to described paired engine torque and electric dischargeMultiple dynamical system gross efficiencys corresponding to torque arithmetic comprise according to following formula calculates described dynamical system gross efficiency:
WhereinFor described dynamical system gross efficiency,For the actual output work of described engineRate,For the discharge power of described drive motors,For the rotating speed of described drive motors,For the power conversion coefficient of described drive motors,WithBe respectively the actual effect of described engine and described drive motorsRate,For described electric discharge moment of torsion.
6. the method for claim 1, is characterized in that, wherein said according to described car load power demand calculate respectively withMultiple engine torques corresponding to described multiple electric discharge moment of torsion comprise that the following formula of basis calculates:
WhereinFor described car load power demand,For described engine torque,For described electric discharge moment of torsion,For the rotating speed of described drive motors and the rotating speed of described engine itRatio.
7. the method for claim 1, is characterized in that, wherein within the scope of described car load power demand, determines multiple puttingElectricity moment of torsion comprises:
Determine the current accessible maximum electric discharge moment of torsion of described drive motors;
Smaller value in described car load power demand and described maximum electric discharge moment of torsion is defined as；
[0,] in get described multiple electric discharge moment of torsion with predetermined space.
8. the method for claim 1, is characterized in that, wherein according to described multiple dynamical system gross efficiencys, institute is setState electric discharge moment of torsion and comprise that described electric discharge moment of torsion is set to and maximum dynamical system gross efficiencyCorresponding electric discharge is turned roundSquare.
9. the method for claim 1, is characterized in that, wherein saidly establishes according to described multiple dynamical system gross efficiencysPutting described electric discharge moment of torsion comprises:
The dynamical system gross efficiency that is 0 o'clock by described electric discharge moment of torsion is defined as baseline system efficiency；
WillWithBetween difference and the 3rd predetermined threshold comparison;
In the situation that described difference is greater than the 3rd predetermined threshold, described electric discharge moment of torsion is set to always imitate with maximum power systemRateCorresponding electric discharge moment of torsion.
10. method as claimed in claim 9, is characterized in that, wherein said next according to described multiple dynamical system gross efficiencysDescribed electric discharge moment of torsion is set also to be comprised:
In the situation that described difference is less than the 3rd predetermined threshold by described difference and the 4th predetermined threshold comparison;
In the situation that described difference is less than described the 4th predetermined threshold, described electric discharge moment of torsion is set to and described baseline systemEfficiencyCorresponding electric discharge moment of torsion,
Wherein said the 4th predetermined threshold is less than described the 3rd predetermined threshold.
11. methods as claimed in claim 9, is characterized in that, wherein said next according to described multiple dynamical system gross efficiencysDescribed electric discharge moment of torsion is set also to be comprised:
In the situation that described difference is greater than the 4th predetermined threshold, described electric discharge moment of torsion is set to the electric discharge moment of torsion of previous moment.
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| DE102007000193A1 (en) * | 2006-05-16 | 2007-11-22 | Toyota Jidosha Kabushiki Kaisha, Toyota | Vehicle and method for controlling the same |
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| CN101624050A (en) * | 2009-08-03 | 2010-01-13 | 奇瑞汽车股份有限公司 | Hybrid-power battery SOC self-adaptive control method |
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| JP2009126257A (en) * | 2007-11-21 | 2009-06-11 | Toyota Motor Corp | Vehicle and control method thereof |
| SE533838C2 (en) * | 2009-06-10 | 2011-02-01 | Scania Cv Ab | Method and system for operating an electric machine in a hybrid vehicle |
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|---|---|---|---|---|
| DE102007000193A1 (en) * | 2006-05-16 | 2007-11-22 | Toyota Jidosha Kabushiki Kaisha, Toyota | Vehicle and method for controlling the same |
| CN101402360A (en) * | 2007-10-30 | 2009-04-08 | 奇瑞汽车股份有限公司 | Power generation control method for motor of hybrid power automobile |
| CN101428610A (en) * | 2008-12-04 | 2009-05-13 | 奇瑞汽车股份有限公司 | Hybrid power automobile power assembly control method |
| CN101624050A (en) * | 2009-08-03 | 2010-01-13 | 奇瑞汽车股份有限公司 | Hybrid-power battery SOC self-adaptive control method |
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