CN102556054B - For the method running hybrid drive - Google Patents
For the method running hybrid drive Download PDFInfo
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- CN102556054B CN102556054B CN201110423055.XA CN201110423055A CN102556054B CN 102556054 B CN102556054 B CN 102556054B CN 201110423055 A CN201110423055 A CN 201110423055A CN 102556054 B CN102556054 B CN 102556054B
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- 238000000034 method Methods 0.000 title claims abstract description 20
- 239000007858 starting material Substances 0.000 claims abstract description 35
- 239000002360 explosive Substances 0.000 claims abstract description 28
- 238000012360 testing method Methods 0.000 claims abstract description 6
- 238000002485 combustion reaction Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 238000012956 testing procedure Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Abstract
It is proposed that a kind of method for running hybrid drive, the method i.e. run for the hybrid drive (52) of automobile (50) and such hybrid drive (52).In automobile (50), motor (58) acts on as driving means on the first axle (54), and explosive motor (60) acts on the second axle (56) as driving means.The operation test on the first axle (54) is acted on by only motor (58), whether starting is for driving the explosive motor (60) of the second axle (56), wherein determine the first set condition started for road, first set condition considers the first standard, and determine the second set condition started for starter, second set condition considers the second standard, checks the most separated from each other, if meets the first set condition started for road or whether meets the second set condition started for starter.
Description
Technical field
The present invention relates to a kind of method run for automobile hybrid driving device and this hybrid drive.
Background technology
Hybrid drive uses the most in the car, it is characterised in that utilize the transducer and two different accumulators that at least two is different for drawing purpose, i.e. for driving automobile.The advantage of hybrid drive is reduce energy consumption and reduce waste gas discharge and noise.
The automobile using hybrid drive is also referred to as hybrid vehicle.In the hybrid vehicle type frequently used except for drive or advance internal combustion engine in addition to also provide for motor for.There is different embodiments at this, wherein electric energy is used for driving automobile.
Describing the driving means for automobile in document US 2002/174796 A, it includes accumulator and regenerative system.This system provides energy when needed.Braking energy is stored in again inside system.This system can include the combination of flywheel, battery, electric capacity or these accumulators.
Embodiment (it is referred to as shaft type hybrid power and drives (the Achshybrid)) regulation of hybrid vehicle, directly drives automobile shafts by motor or E equipment, and by internal combustion engine drives the second axle.Electric axis is applied not only to drive and charges for battery.
Specifying only electric running in the method for operation of shaft type hybrid vehicle, wherein internal combustion engine stops and only realizes advancing by E equipment.Advance in order to explosive motor can be utilized together to realize, it is necessary to first start this electromotor.On the one hand this pass through traditional starter or starter realizes, and this is referred to as starter below and starts, or utilizes dragging to realize by making full use of automobile kinetic energy during travelling, and this is referred to herein as road and starts.A series of condition is there is for starting the decision of explosive motor.They include charged state (SOC:state of charge), car speed, driver's torque hope, vehicle wheel rotational speed, yaw angle and the steering wheel angle of such as battery.
Because explosive motor number of starts (they can be realized by starter) was limited by the service life of starter, therefore recommend, be frequently utilized that road starts as far as possible to start explosive motor.
Summary of the invention
nullThe method proposing the operation of a kind of hybrid drive for automobile for this present invention，Wherein motor acts on the first axle of automobile as driving means，And explosive motor acts on the second axle of automobile as driving means，Wherein acted on the operation test on the first axle by only motor，Whether starting is for driving the explosive motor of the second axle，Wherein determine for utilizing the first set condition dragged by making full use of the road starting that automobile kinetic energy realizes during travelling，First set condition considers the first standard，And determine the second set condition started for starter，Second set condition considers the second standard，Check the most separated from each other，Whether meet the first set condition started for road or whether meet the second set condition started for starter，Wherein，If meeting the first set condition started for road，Torque balance is realized by motor when road starts.nullA kind of hybrid drive for automobile is also proposed，Wherein motor acts on the first axle of automobile as driving means，And explosive motor acts on the second axle of automobile as driving means，This hybrid drive is designed to，The operation test on the first axle is acted on by only motor，Whether starting is for driving the explosive motor of the second axle，Wherein determine for utilizing the first set condition dragged by making full use of the road starting that automobile kinetic energy realizes during travelling，First set condition considers the first standard，And determine the second set condition started for starter，Second set condition considers the second standard，Check the most separated from each other，Whether meet the first set condition started for road or whether meet the second set condition started for starter，Wherein，If meeting the first set condition started for road，Torque balance is realized by motor when road starts.
Determining two set conditions the most according to the proposed method, they still consider to relate generally to the travel conditions of hybrid vehicle and as the state of battery of accumulator and the standard of driving means state.
Described hybrid vehicle is especially driven by shaft type hybrid power and constitutes and be arranged for carrying out proposed method.
Cheap starter can also be constructed by reducing starter number of starts.But the road taken no action to starts existing defects, and this starting can feel and feel uncomfortable for driver.In order to avoid this point, can be by E equipment replacement for utilizing road to start the power needed for explosive motor.But, only when E equipment have enough torques (torque reserve here) for, be used for supporting the when that road starting, can realize be fully compensated.
The power train gear ratio of explosive motor branch, the gear ratio of E equipment branch and the towing square of explosive motor are depended on for the E equipment torque needed for restarting explosive motor.At this for E equipment torque reserve depend on the torque hope of driver and the E equipment torque of actual maximum possible.
Another aspect for selecting starter to start is link characteristics.Such as regenerated by the distinctive function of hybrid power, power-assisted, starting/stopping automaton and pure motor driving, in there is the hybrid vehicle that electronic shaft type drives, there is the power train big alternation effect to driving dynamics.This is also applied for the situation that automobile is positioned on the road (low μ road) with low friction valve.It is also contemplated that, before whether automobile is positioned at inside the transport condition of instability or is positioned at the transport condition of instability.
Especially in the automobile have one or more electric driving shaft, driving trace state has and directly affects, because produced the yaw moment being similar to the full wheel of machinery by these electric driving shafts.If automobile is positioned on the road of low friction valve, it is impossible to perform starting on this road, for not damaging Riding Stability of Automobile.
The further advantage of the present invention and expansion structure are given with accompanying drawing by describing.
Certainly, above-mentioned and to be explained feature is possible not only to respectively in the combination be given and in other combination or be used alone, and without departing from the scope of the present invention.
Accompanying drawing explanation
In accompanying drawing:
Fig. 1 illustrates the embodiment of described method with flow chart,
Fig. 2 illustrates the embodiment of hybrid vehicle with schematic diagram.
Detailed description of the invention
Show out the present invention by means of embodiment in the accompanying drawings and describe in detail refering to accompanying drawing below.
The embodiment flow process of described method is shown with flow chart in FIG.Accompanying drawing illustrates, starts explosive motor the most when needed.The program explained by means of flow chart can be run continuously.
Thus set out, even if automobile is first only driven by the electric drive provided by motor.Testing procedure regulation now, checks in first step 10, if meet the first set condition that road starts.These conditions consider different standards, and they such as relate to battery charging state, road condition, driver's torque hope, car speed, the torque reserve of motor, vehicle wheel rotational speed, yaw angle and steering wheel angle.It is stressed that, it is also possible to consider other standard or condition according to application.Such as select the condition that considered according to car category or according to travel conditions.
Especially checking in first step 10, the situation of automobile place road how.Friction valve is such as tried to achieve at this.When low friction valve (low μ) such as smooth on ice time, it is impossible to realize road and start.If being unsatisfactory for this condition or other test condition any, then in another step 12, check the second set condition.
If meeting all of condition in step 10, realizing road at step 14 and starting.Checking the most in step 16 when road starts, whether motor has enough torque reserves.If it is, motor supports that road starts (step 18).Without enough torque reserves, then do not have motor torque to realize road with compensating and start (branch 20).
Terminating use explosive motor (it has started) corresponding to shown program the most again with step 10 start program.As set forth above, it is possible to continuously perform this program.Alternatively it can be stated that at regular intervals or can also according to event perform program.
If being unsatisfactory for described condition in step 10, as it has been described above, check the second set condition in step 12.These conditions consider different standards, and they such as relate to battery charging state, road condition, driver's torque hope, car speed, the torque reserve of motor, vehicle wheel rotational speed, yaw angle and steering wheel angle.At this also it is however emphasized that, it is also possible to consider other standard or condition according to application.Can be according to car category or according to travel conditions, condition to be considered can also be selected.
If being unsatisfactory for these second conditions (branch 22), again with step 10 start program.If meeting second condition, start explosive motor (step 24) by starter.After explosive motor stops, this can realize after the regular hour, or when confirming to be no longer necessary to this driving means added when, again with step 10 start program.
It should be noted that the first set condition and the second set condition can consider the most identical standard.The most not only step 10 and also in step 12 suggestion runway state.In addition occur that driver's torque hope is necessary condition generally for two steps.But at this it can be stated that have to be lower than or exceed other threshold value, the size of such as driver torque hope or the road friction value determined in step 10, it is thus regarded that meet described condition.
By selecting threshold value, particularly by selecting different threshold size for the first set condition (step 10) compared with the second set condition (step 12) it can be stated that carry out road starting the most continually compared with starting with starter.Therefore can also limit the frequency that starter starts, they can reduce the load of starter.
The most required E equipment torque M is started for roadESCan be calculated as below:
MES=iVM/iEM*MVS
Wherein:
iVM=power train and the gear ratio (depending on transmission ratio or selected gear level) of explosive motor
iEM=power train and the gear ratio of E equipment
MVSThe actual towing square (being provided by engine controller) of=explosive motor
The actual torque deposit of electric driver is calculated as below:
MRes=MEMax-MEVor
Wherein:
MEMax: the actual maximum adjustable propelling torque (being generally dependent on E equipment rotating speed and the charged state of battery of reality) of motor
MEVor: the propelling torque of the actual adjustment of motor.
It is thus determined that two set conditions.First group of condition determining that road starts, second group of condition determining that starter starts.First group, in the structure except known condition, such as actual battery charging state, driver's torque hope, car speed etc., also includes the torque reserve M of realityRes.Second set condition determines the condition that starter starts, and they can correspond to the condition according to prior art, mainly battery charging state, driver's torque hope and car speed.
In the embodiment of the method shown in Fig. 1, in first step 10, check the condition of road starting and perform road starting if desired.In second step 12, if explosive motor does not the most start, then the condition of inspection starter starting and execution starter starting if desired.
First set condition can so select, and i.e. performs sufficient number of road and starts, the number of times started thus not more than starter during automotive service life.The lower SOC threshold determined in starter starting conditions group for this condition selection ratio such as started for road.Different threshold values can also be determined for other common condition, be used for reducing starter number of starts, if they are close to the limit in service life.
By yaw angle, steering wheel angle and the standard evaluation of the ESP controller of vehicle wheel rotational speed, it may be determined that coefficient, the actual travel dynamic regime of its diagnosis automobile.Low μ scope and the situation that driving dynamics is critical can not perform road start and stopping can not be performed.
Figure 2 illustrates automobile, it represents with label symbol 50 generally.This automobile 50 has hybrid drive 52 and the first axle 54 and the second axle 56.This hybrid drive 52 still includes acting on the motor 58 on the first axle 54 as driving means, and acts on the explosive motor 60 on the second axle 56 as driving means.
Described automobile 50 also includes double-clutch speed changer 62, electromotor 64 and starter 66.Motor 58 and the driving of explosive motor 60 is coordinated by double-clutch speed changer 62.
The driving of this automobile 50 can realize only by the electric drive provided by motor 58.In given travel situation, such as when occurring more than driver's torque hope of certain threshold value, it is possible to use explosive motor is as another driving means.Need for this to start this electromotor.This point can utilize the kinetic energy of automobile 50 by starter 66 or by road starting realization when road starts.
In order to determine, if starter starting to be carried out or road start, still consider to characterize the condition of the standard of travel conditions.Starting for road at this first set condition, the second set condition starts for starter.In order to meet these conditions, it is necessary to above or below given threshold value.If occurring this situation in the first set condition and in the second set condition, they relate to consistent standard, then can select different threshold values.Such as the condition considered as the standard of driver's torque hope, select threshold value while the first set condition is different from the second set condition.
The frequency proportions of different start mode can be given in this way.Thus can consider regulation, limit starter starting frequency.This ratio can also be mated by changing threshold value on automobile 50 duration of operation.
Claims (9)
- null1. the method for the operation of the hybrid drive (52) of automobile (50)，Wherein motor (58) acts on first axle (54) of automobile (50) as driving means，And explosive motor (60) acts on second axle (56) of automobile (50) as driving means，Wherein acted on the operation test on the first axle (54) by only motor (58)，Whether starting is for driving the explosive motor (60) of the second axle (56)，Wherein determine for utilizing the first set condition dragged by making full use of the road starting that automobile kinetic energy realizes during travelling，First set condition considers the first standard，And determine the second set condition started for starter，Second set condition considers the second standard，Check the most separated from each other，Whether meet the first set condition started for road or whether meet the second set condition started for starter，Wherein，If meeting the first set condition started for road，Torque balance is realized by motor (58) when road starts.
- 2. the method for claim 1, first checks, if if meeting the first set condition started for road and being unsatisfactory for the first set condition started for road, then verify that, if meet the second set condition started for starter.
- 3. the method for claim 1, is wherein checking, motor (58) whether provide sufficiently high torque reserve for after, it is achieved torque balance.
- 4. method as claimed any one in claims 1 to 3, checks the most continuously, if meet the first set condition and/or the second set condition.
- 5. as claimed any one in claims 1 to 3 method, wherein the first set condition considers the standard below at least one: the charged state of battery, road condition, driver's torque hope, car speed, the torque reserve of motor, vehicle wheel rotational speed, yaw angle, steering wheel angle.
- 6. as claimed any one in claims 1 to 3 method, wherein the second set condition considers the standard below at least one: the charged state of battery, road condition, driver's torque hope, car speed, the torque reserve of motor, vehicle wheel rotational speed, yaw angle, steering wheel angle.
- 7. method as claimed any one in claims 1 to 3, wherein specifies the different threshold values for meeting described consistent condition with in the second set condition for consistent condition in the first set condition.
- null8. for the hybrid drive of automobile (50)，Wherein motor (58) acts on first axle (54) of automobile (50) as driving means，And explosive motor (60) acts on second axle (56) of automobile (50) as driving means，This hybrid drive is designed to，The operation test on the first axle (54) is acted on by only motor (58)，Whether starting is for driving the explosive motor (60) of the second axle (56)，Wherein determine for utilizing the first set condition dragged by making full use of the road starting that automobile kinetic energy realizes during travelling，First set condition considers the first standard，And determine the second set condition started for starter，Second set condition considers the second standard，Check the most separated from each other，Whether meet the first set condition started for road or whether meet the second set condition started for starter，Wherein，If meeting the first set condition started for road，Torque balance is realized by motor (58) when road starts.
- 9. hybrid drive as claimed in claim 8, wherein specifies the different threshold values for meeting described consistent condition for consistent condition in the first set condition and in the second set condition.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102010063332A DE102010063332A1 (en) | 2010-12-17 | 2010-12-17 | Method for operating a hybrid drive |
| DE102010063332.1 | 2010-12-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102556054A CN102556054A (en) | 2012-07-11 |
| CN102556054B true CN102556054B (en) | 2016-12-14 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1245431A2 (en) * | 2001-03-27 | 2002-10-02 | General Electric Company | Hybrid energy power management system and method |
| CN1378924A (en) * | 2001-03-30 | 2002-11-13 | 卢克摩擦片和离合器两合公司 | Power driving system |
| CN101177140A (en) * | 2006-11-10 | 2008-05-14 | 爱信精机株式会社 | Control device for vehicle driving source |
| CN101238019A (en) * | 2005-08-09 | 2008-08-06 | 罗伯特·博世有限公司 | Method for triggering a hybrid vehicle, and hybrid vehicle |
| CN100540374C (en) * | 2005-08-26 | 2009-09-16 | 丰田自动车株式会社 | The control method of vehicle and vehicle |
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1245431A2 (en) * | 2001-03-27 | 2002-10-02 | General Electric Company | Hybrid energy power management system and method |
| CN1378924A (en) * | 2001-03-30 | 2002-11-13 | 卢克摩擦片和离合器两合公司 | Power driving system |
| CN101238019A (en) * | 2005-08-09 | 2008-08-06 | 罗伯特·博世有限公司 | Method for triggering a hybrid vehicle, and hybrid vehicle |
| CN100540374C (en) * | 2005-08-26 | 2009-09-16 | 丰田自动车株式会社 | The control method of vehicle and vehicle |
| CN101177140A (en) * | 2006-11-10 | 2008-05-14 | 爱信精机株式会社 | Control device for vehicle driving source |
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