The specific embodiment
Below, will be in conjunction with the accompanying drawings, the specific embodiment of the present utility model is described in detail.
As shown in Figure 1, the hybrid electric drive system according to the utility model first embodiment comprises: driving engine 10, first clutch 20, first motor 30, first speed reduction gearing 50, first set of wheels 60, second motor 70, second speed reduction gearing 80, second set of wheels 90 and closed-center system 100.Wherein, described driving engine 10, first clutch 20 and first motor 30 are linked in sequence, described first speed reduction gearing 50 is connected between the first clutch 20 and first motor 30, first set of wheels 60 links to each other with first speed reduction gearing 50, second motor 70, second speed reduction gearing 80 and second set of wheels 90 are linked in sequence, and closed-center system 100 is electrically connected respectively with first motor 30 and second motor 70.
Wherein, described driving engine 10 can be other engine fuels such as spark ignition engine, diesel engine or methyl alcohol, ethanol or the like.
Described first clutch 20 can be for well known to a person skilled in the art various ordinary clutch.
Described first motor 30 and second motor 70 can be AC alternating current dynamo, switched reluctance machines, direct current permanent magnet motor or the like.According to electromagnetic induction principle, described first motor 30 and second motor 70 all both can generator mode work, also can electric motor mode work.When working, be used for mechanical energy is converted into electric energy with generator mode.When working, be used for electric energy is converted into mechanical energy with electric motor mode.For example, when the power of driving engine 10 is delivered to first motor 30 by the first clutch 20 that is in engagement state, first motor 30 is with generator mode work, thereby mechanical energy is converted into electric energy and is delivered to closed-center system 100, so that closed-center system 100 is charged.When described drive system is in braking mode, when being passed to first motor 30 and/or second motor 70 respectively from the braking energy of the feedback of first set of wheels 60 and/or second set of wheels 90, first motor 30 and/or second motor 70 are with generator mode work, thereby mechanical energy is converted into electric energy and is delivered to closed-center system 100, so that closed-center system 100 is charged.And when closed-center system 100 during to first motor 30 and the power supply of second motor 70, first motor 30 and second motor 70 be all with electric motor mode work, thereby electric energy is converted into mechanical energy, travels with final driven wheel.
Described first speed reduction gearing 50 and second speed reduction gearing 80 can be reducing gear, change-speed box or the like.And as known to those skilled in the art, the power that is delivered to first speed reduction gearing 50 and second speed reduction gearing 80 can finally be delivered to first set of wheels 60 and second set of wheels 90 respectively by coupler, wheel drive shaft etc., travels with powered vehicle.
Described closed-center system 100 is controlled energy storing device, for example can be battery pack, fuel cells or the like.
The drive system of this kind embodiment can have first set of wheels and drive engine mode, the first set of wheels drive motor pattern, first set of wheels driving motor of engine integrated mode, the second set of wheels drive motor pattern, four wheel drive motor of engine integrated mode, four wheel drive double-motor integrated mode and four wheel drive driving engine double-motor integrated mode.
Wherein, drive under the engine mode in described first set of wheels, vehicle drives by first set of wheels 60, and driving engine 10 is as propulsion source.At this moment, described driving engine 10 starts, and first clutch 20 is in engagement state, and the power of driving engine 10 is passed to first set of wheels 60 by the first clutch 20 and first speed reduction gearing 50, travels with powered vehicle.
Under the described first set of wheels drive motor pattern, vehicle drives by first set of wheels 60, and first motor 30 is as propulsion source.At this moment, described closed-center system 100 is to 30 power supplies of first motor, and the power of first motor 30 is passed to first set of wheels 60 by first speed reduction gearing 50, travels with powered vehicle.
Drive under the motor of engine integrated mode in described first set of wheels, vehicle drives by first set of wheels 60, and the driving engine 10 and first motor 30 are simultaneously as propulsion source.At this moment, described driving engine 10 starts, first clutch 20 is in engagement state, the power of driving engine 10 is passed to first set of wheels 60 by the first clutch 20 and first speed reduction gearing 50, travel with powered vehicle, and simultaneously, described closed-center system 100 is also to 30 power supplies of first motor, the power of first motor 30 also is passed to first set of wheels 60 by first speed reduction gearing 50, travels with powered vehicle.
Under the described second set of wheels drive motor pattern, vehicle drives by second set of wheels 90, and second motor 70 is as propulsion source.At this moment, described closed-center system 100 is to 70 power supplies of second motor, and the power of second motor 70 is passed to second set of wheels 90 by second speed reduction gearing 80, travels with powered vehicle.
Under described four wheel drive motor of engine integrated mode, vehicle by first set of wheels 60 and second set of wheels 90, be that four-wheel drives jointly, the driving engine 10 and second motor 70 are simultaneously as propulsion source.At this moment, described driving engine 10 starts, first clutch 20 is in engagement state, the power of driving engine 10 is passed to first set of wheels 60 by the first clutch 20 and first speed reduction gearing 50, travel with powered vehicle, and simultaneously, described closed-center system 100 is to 70 power supplies of second motor, the power of second motor 70 is passed to second set of wheels 90 by second speed reduction gearing 80, travels with powered vehicle.
Under described four wheel drive double-motor integrated mode, vehicle by first set of wheels 60 and second set of wheels 90, be that four-wheel drives jointly, first motor 30 and second motor 70 are simultaneously as propulsion source.At this moment, described closed-center system 100 is simultaneously to first motor 30 and 70 power supplies of second motor, the power of first motor 30 and second motor 70 is passed to first set of wheels 60 and second set of wheels 90 by first speed reduction gearing 50 and second speed reduction gearing 80 respectively, travels with powered vehicle.
Under described four wheel drive driving engine double-motor integrated mode, vehicle by first set of wheels 60 and second set of wheels 90, be that four-wheel drives jointly, driving engine 10, first motor 30 and second motor 70 are simultaneously as propulsion source.At this moment, described driving engine 10 starts, first clutch 20 is in engagement state, the power of driving engine 10 is passed to first set of wheels 60 by the first clutch 20 and first speed reduction gearing 50, travel with powered vehicle, and simultaneously, described closed-center system 100 is powered simultaneously to first motor 30 and second motor 70, the power of first motor 30 and second motor 70 is passed to first set of wheels 60 and second set of wheels 90 by first speed reduction gearing 50 and second speed reduction gearing 80 respectively, travels with powered vehicle.
According to the functional block diagram of the hybrid electric drive system of the utility model second embodiment as shown in Figure 2, wherein the difference of comparing with embodiment shown in Figure 1 is, described drive system is except that comprising shown in Fig. 1 each parts, also comprise second clutch 40, described second clutch 40 can be for well known to a person skilled in the art various ordinary clutch.
In the case, the annexation of each parts is in the drive system: described driving engine 10, first clutch 20 and first motor 30 are linked in sequence, described second clutch 40 is connected between the first clutch 20 and first motor 30, second clutch 40, first speed reduction gearing 50 and first set of wheels 60 are linked in sequence, second motor 70, second speed reduction gearing 80 and second set of wheels 90 are linked in sequence, closed-center system 100 is electrically connected respectively with first motor 30 and second motor 70, as shown in Figure 2.
The drive system of this kind embodiment is removed has the various drive patterns that first embodiment is had, drive outside engine mode, the first set of wheels drive motor pattern, first set of wheels driving motor of engine integrated mode, the second set of wheels drive motor pattern, four wheel drive motor of engine integrated mode, four wheel drive double-motor integrated mode and the four wheel drive driving engine double-motor integrated mode as first set of wheels, also have all attainable self-charging pattern under Parking and driving states.
The difference of this embodiment and first embodiment is, no matter is the power of driving engine 10, still the power of first motor 30, before being passed to first set of wheels 60, all need to pass through second clutch 40 earlier, and then, be passed to first set of wheels 60 at last by first speed reduction gearing 50.Be exactly specifically, the power of driving engine 10 is passed to first set of wheels, 60, the first motors 30 by first clutch 20, second clutch 40 and first speed reduction gearing 50 power is passed to first set of wheels 60 by the second clutch 40 and first speed reduction gearing 50.Therefore, drive under engine mode, the first set of wheels drive motor pattern, first set of wheels driving motor of engine integrated mode, four wheel drive motor of engine integrated mode, four wheel drive double-motor integrated mode and the four wheel drive driving engine double-motor integrated mode in described first set of wheels, described second clutch 40 all is in engagement state.In addition, mode of operation and first embodiment identical of the miscellaneous part in the drive system under each pattern identical with first embodiment is so repeat no more.
In addition, under described self-charging pattern, when vehicle is in the Parking state, described driving engine 10 starts, first clutch 20 is in engagement state, and second clutch 40 is in released state, and the power of driving engine 10 is passed to first motor 30 by first clutch 20, and be converted into power delivery to closed-center system 100 by first motor 30, so that it is charged.And when vehicle is in driving states, not only described driving engine 10 starts, first clutch 20 is in engagement state, second clutch 40 is in released state, the power of driving engine 10 is passed to first motor 30 by first clutch 20, and be converted into power delivery to closed-center system 100 by first motor 30, so that it is charged, and simultaneously, described closed-center system 100 is also to 70 power supplies of second motor, the power of second motor 70 is passed to second set of wheels 90 by second speed reduction gearing 80, travels with powered vehicle.
Under the preferable case, described closed-center system 100 has the external charge interface, can directly use external power supply that described closed-center system 100 is carried out external charge by this external charge interface, for example can directly use domestic power supply that it is charged, therefore improved ease of use greatly, and this preferred feature is suitable for all for aforementioned first embodiment and second embodiment.