TWI523771B - Hybrid mechanism and hybrid mode thereof - Google Patents

Description

Hybrid mechanism and its power mixing mode

The present disclosure relates to a power mixing design, and more particularly to a hybrid powertrain that provides a hybrid of the engine and the drive motor and its power mixing mode.

In recent years, with the sharp decline of energy and the rise of environmental protection concepts, the integration of energy-based hybrid electric vehicles has arisen. Various manufacturers are also actively researching and developing related technologies. The purpose is to hope that hybrid electric vehicles can reduce fuel consumption and save energy. At the same time, we can balance horsepower.

Conventional about hybrid electric power technology, usually using a general clutch to couple the engine and a plurality of motors, but such a driving mode can not effectively adjust the power output between the engine and each motor, in order to adjust the power output to respond The demand for different driving conditions will be difficult to achieve. In addition, at present, the field of hybrid electric power technology proposes a technical means for coupling an engine and a plurality of motors by using a planetary gear set, thereby achieving a hybrid electric power effect. However, the aforementioned planetary gear set has an internal gear. Due to the precision of the number of teeth, the production is not easy, and the overall volume of the planetary gear set is too large.

Therefore, how to propose a mechanism for adjusting the output of the driving force between the engine and the plurality of motors, and applying the same to the hybrid vehicle can help the hybrid vehicle to adjust different power mixing effects according to requirements. At the same time, taking into account the small volume and drop The low process in which it has a hybrid mechanism for performing the harmonic driving force will be a technical problem that the person skilled in the art will solve.

In view of the above-mentioned shortcomings of the prior art, the object of the present disclosure is to provide a hybrid power technology, through the power mixing design between the engine and the drive motor, to achieve a variety of power hybrid driving mode, a total of four power mixing modes, of which One mode is the full-tram mode, the battery provides the supply current to the motor to output the power, the second mode is the electric train extended mode, the engine provides the motor power to generate the current to the battery, and then the battery provides the current to the other motor to output the power, the third The mode is the engine motor hybrid mode, which is the power output power of the hybrid motor of the engine. The fourth mode is the dual motor hybrid mode, and the battery supplies current to the two motors to output power.

To achieve the foregoing and other objects, the present disclosure provides a hybrid powertrain including: a hybrid power unit, an engine, a first motor, a second motor, a first clutch, a second clutch, a differential, and a battery. The hybrid unit includes a first sun gear, a second sun gear, at least one planet gear, and a carrier gear, wherein the first sun gear, the second sun gear, and the at least one planet gear are located in the carrier gear The carrier gear is coupled to the at least one planetary gear, and the at least one planetary gear is coupled to the first sun gear and the second sun gear, and the first sun gear and the second sun gear are coaxial The heart is not directly engaged. The first motor is coupled to the first sun gear, the second motor is coupled to the engine, the first clutch is coupled to the second motor, and the second clutch is concentric with the first clutch And coupled to the carrier gear, the differential is coupled to the second sun gear, the battery is coupled to the first motor and the second motor for providing a supply current to the first motor Or the second motor, or receiving from the first The extended range current provided by the two motors.

In addition, the present disclosure proposes a power mixing mode in which different power mixing is provided by a combination of a battery, a first motor, a second motor, and an engine, including: the first mode is an all-electric mode, and the battery is supplied with a current to the first A motor outputs power; the second mode is a trolley extended mode, wherein the engine provides a second motor power to generate an extended range current to the battery, and the battery provides a supply current to the first motor to output power; the third mode is an engine motor hybrid mode. The power of the engine is mixed with the power of the first motor to output power; the fourth mode is a dual motor hybrid mode in which a battery is supplied with current to the first motor and the second motor to output power.

In an embodiment, when the hybrid mechanism is in the all-electric mode, a brake unit causes the engine and the second motor to not supply power, and the battery supplies the supply current to the first motor, so that the first The motor outputs a first driving force to the hybrid unit, and the first driving force is transmitted from the first sun gear to the differential via the second sun gear.

In still another embodiment, when the hybrid mechanism is in the extended range mode, a brake unit causes the engine and the second motor to not supply power, and the first clutch engages the engine to drive the second motor to provide the Extending the current to the battery, the battery providing the supply current to the first motor, causing the first motor to output a first driving force to the hybrid unit, the first driving force from the first sun gear passing the first The two sun gears are then transmitted to the differential.

In another embodiment, when the hybrid mechanism is in an engine motor hybrid mode, the battery supplies the supply current to the first motor, and the first motor outputs a first driving force to the hybrid unit, the first drive From the first sun gear to the second sun gear, and the first clutch and the second clutch are engaged, the engine Actuating to output a second driving force to the hybrid unit, the second driving force from the carrier gear to the planetary gear, wherein the hybrid unit receives the first driving force and the second driving force and performs reconciliation And outputting the harmonic driving force to the differential by the second sun gear.

In still another embodiment, when the hybrid mechanism is in the dual motor hybrid mode, the battery supplies the supply current to the first motor and the second motor, and the first motor outputs the first driving force to the hybrid unit The first driving force is from the first sun gear to the second sun gear, and the second clutch is engaged without starting the engine, and the second motor outputs a second driving force to the hybrid unit, the second Driving force from the carrier gear to the planetary gear, wherein the hybrid unit receives and combines the first driving force and the second driving force to output the harmonic driving force to the differential by the second sun gear Device.

Compared with the prior art, the hybrid mechanism and its power mixing mode of the present disclosure utilize one sun gear as an input tooth and the other sun gear as an output tooth, and a planetary carrier set as a power mixing mechanism to perform an engine. The power mixing with the power motor to achieve the effect of changing and adjusting the output speed, so that the extended range electric vehicle using the disclosure can have four different power mixing modes, and the power supply can be adjusted according to different powers and states. the way. It can be seen from the above that the present disclosure utilizes the technical means of combining the dual sun gear with the carrier gear to achieve the purpose of power mixing, and can solve the conventional problem that the inner ring gear planetary gear set is used as the power mixing in manufacturing and the control is complicated. Degree and other issues.

1‧‧‧ engine

20‧‧‧First motor

21‧‧‧second motor

3‧‧‧Battery

4‧‧‧First clutch

5‧‧‧Second clutch

6‧‧‧Hybrid unit

61‧‧‧ planet carrier gear

62‧‧‧ planetary gear

621‧‧‧First end

622‧‧‧ second end

63‧‧‧First sun gear

64‧‧‧second sun gear

7‧‧‧Differential

8‧‧‧ brake unit

90‧‧‧First gear

91‧‧‧second gear

92‧‧‧ Third gear

93‧‧‧fourth gear

94‧‧‧ fifth gear

100‧‧‧Hybrid mechanism

200‧‧‧Supply current

201‧‧‧Excessive current

300‧‧‧First driving force

301‧‧‧second driving force

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a block diagram showing the construction of a hybrid embodiment of the present invention.

Figure 2 is a cross-sectional view showing the hybrid unit in the hybrid mechanism of the present disclosure.

Figure 3 is a schematic illustration of the hybrid mechanism of the present disclosure.

Fig. 4A is a schematic view showing the operation of the first mode of the power mixing mode of the hybrid mechanism of the present disclosure.

Fig. 4B is a schematic view showing the operation of the second mode of the power mixing mode of the hybrid mechanism of the present disclosure.

Fig. 4C is a schematic view showing the operation of the third mode of the power mixing mode of the hybrid mechanism of the present disclosure.

4D is a schematic view showing the operation of the fourth mode of the power mixing mode of the hybrid mechanism of the present disclosure.

The embodiments of the present disclosure are described below by way of specific embodiments, and those skilled in the art can readily understand other features and functions of the present disclosure from the disclosure. The disclosure may also be practiced or applied by other different embodiments.

Please refer to FIG. 1 for a schematic structural view of a specific embodiment of the hybrid mechanism of the present disclosure. As shown, the hybrid mechanism 100 mainly includes an engine 1, a first motor 20, a second motor 21, a first clutch 4, a second clutch 5, a hybrid unit 6, and a differential 7, wherein the hybrid mechanism The 100 can be mounted on a carrier to provide a hybrid of the engine and the drive motor for use in driving the vehicle.

The disclosure mainly utilizes the technical means of combining the double sun gear, the planetary gear and the carrier gear to achieve the power mixing effect. The hybrid unit 6 will be described below with a combination of the first and second figures, wherein the second figure is the hybrid mechanism disclosed herein. A cross-sectional view of the hybrid unit 6 in 100.

The hybrid unit 6 includes a carrier gear 61, at least one planetary gear 62, a first sun gear 63, and a second sun gear 64. In detail, the first sun gear 63, the second sun gear 64 and the at least one planetary gear 62 are located in the carrier gear 61, and the carrier gear 61 is coupled to the at least one planetary gear 62. At least one planetary gear 62 is coupled to the first sun gear 63 and the second sun gear 64, and wherein the first sun gear 63 and the second sun gear 64 are concentric, but are not directly engaged.

In addition, the first motor 20 is coupled to the first sun gear 63, the second motor 21 is coupled to the engine 1, the first clutch 4 is coupled to the second motor 21, and the second clutch 5 is coupled to the first clutch 4. Coaxially coupled to the carrier gear 61, the differential is coupled to the second sun gear 64, and the first motor 20 and the second motor 21 are coupled to a battery (not shown) for providing a battery The supply current is supplied to the first motor 20 or the second motor 21 for the first motor 20 or the second motor 21 to generate power, or alternatively, the battery can receive an extended range generated by the second motor 21 driven by the engine 1. Current.

Since the first sun gear 63 will be connected to the first motor 20 and the planet carrier gear 61 will be connected to the engine 1 and the second motor 21, the internal components of the hybrid unit 6 are acceptable from the engine 1, the first motor 20 and The driving force provided by either of the second motors 21 may be one or a combination thereof.

If there is only a single driving force, the hybrid unit 6 can output the driving force by the second sun gear 64 without the need for reconciliation, and the output speed for the differential 7 to be changed or adjusted. If the driving force comes from both, when the two driving forces enter the hybrid unit 6, the hybrid unit 6 will be tempered, that is, through the hybrid. The coupling relationship between the carrier gear 61, the planetary gear 62, the first sun gear 63 and the second sun gear 64 in the unit 6 generates a harmonic driving force and is output by the second sun gear 64 for the differential 7 to be changed. Or adjust the output speed.

It should be noted that the planetary gears 62 in the hybrid unit 6 are not limited in number, and only one or more of the hybrid units 6 are required to operate. Therefore, although three planetary gears 62 are drawn in FIG. 1, the second figure Two planetary gears 62 are also shown in the cross-sectional view, but the number is adjustable, and thus the foregoing is only an embodiment of the present disclosure and is not intended to be limiting.

In addition, in a specific implementation, the hybrid mechanism 100 further includes a brake unit 8 coupled to the second clutch 5 . Since the engine 1 and the second motor 21 do not need to provide kinetic energy under certain conditions, the second clutch 5 connected to the hybrid unit 6 can be locked by the brake unit 8 to prevent the carrier gear 61 from rotating.

In addition, when the hybrid mechanism 100 is embodied, the first gear 90, the second gear 91, the third gear 92, the fourth gear 93, and the fifth gear 94 may be further included. In detail, the first gear 90 is coaxially engaged with the first sun gear 63, the second gear 91 is coaxially engaged with the rotating shaft of the first motor 20, and the first gear 90 is meshed with the second gear 91, thus being the first When the motor 20 outputs the driving force, the driving force is transmitted to the first sun gear 63 by the combination of the first gear 90 and the second gear 91.

The third gear 92 is coaxially engaged with the second sun gear 64, and the fourth gear 93 is engaged on the periphery of the differential 7, and the third gear 92 is meshed with the fourth gear 93, and thus, by the second sun gear 64 When the driving force is output, it is transmitted to the differential 7 through the combination of the third gear 92 and the fourth gear 93.

In addition, the second clutch 5 is engaged with a fifth gear 94 that can be used to mesh with the carrier gear 61, thus being driven by the engine 1 or the second motor 21. When the driving force is generated, the carrier gear 61 is driven by the fifth gear 94.

However, the aforementioned first gear 90, second gear 91, third gear 92, fourth gear 93, and fifth gear 94 are not absolutely necessary components, and thus may be increased or decreased as needed.

It can be seen from the above that the technical means of combining the double sun gear with the carrier gear can achieve the effect of power mixing. As the power is supplied by the motor or powered by the engine, it needs to be adjusted according to different power requirements. The present disclosure utilizes the foregoing mechanism design to provide an improved hybrid vehicle that can have a small volume and can have four modes in this mechanism design, as will be described in more detail later.

Next, in order to facilitate the description of the internal driving force transfer or current flow of the hybrid power unit 100, the operation of the hybrid power mechanism 100 of the present disclosure will be schematically illustrated through FIG.

Referring to Fig. 3, a schematic view of the hybrid mechanism of the present disclosure will be described. Fig. 3 is a plan view showing the perspective view of Fig. 1 as a plan view. Referring to Fig. 3, reference can be made to Fig. 1.

As shown in the figure, the engine 1 is coupled to the carrier gear 61 via a second motor 21 coupled to the first clutch 4 and a second clutch 5 coupled to the brake unit 8. The first motor 20 is coupled. To the first sun gear 63, wherein the battery 3 can simultaneously supply current to the first motor 20 and the second motor 21 or only current to the first motor 20 to provide different types of driving forces. Further, the battery 3 can also receive the current supplied by the second motor 21, thereby accumulating electric power.

The hybrid unit 6 includes a carrier gear 61, a planetary gear 62, a first sun gear 63, and a second sun gear 64. Wherein, the planetary gear 62 is coupled to the outer portions of the first sun gear 63 and the second sun gear 64, and the carrier gear 61 is Coupling to the planetary gear 62, wherein the first sun gear 63 receives a driving force of the first motor 20, the carrier gear 61 receives another driving force of the engine 1 and the second motor 21, and the second sun gear 64 is mixed. After the power unit 6 is internally conditioned, the combined driving force of the two driving forces is adjusted to the differential 7. It should be noted that in the present embodiment, two planetary gears 62 are drawn, but the number is not limited by the disclosure.

Further, the third gear 92 and the fourth gear 93 provide an engagement relationship between the differential 7 and the two sun gears 64, and the fifth gear 94 provides an engagement relationship between the second clutch 5 and the carrier gear 61, which has been described above. Actuation, no longer repeat here.

In one embodiment, the planet gears 62 can include a first end 621 that meshes with the first sun gear 63 and a second end 622 that meshes with the second sun gear 64. The number of teeth of the first end portion 621 and the second end portion 622 may be different. In other words, in order to achieve the harmonic effect, the first sun gear 63 and the second sun gear 64 are usually designed with different numbers of teeth, and thus the first of the planetary gears 62 The end portion 621 and the second end portion 622 correspond to the number of teeth of the first sun gear 63 and the second sun gear 64, respectively, to provide a driving effect between different numbers of teeth.

Under the foregoing architecture, the number of teeth Z _{A of the} output second sun gear is greater than the number of teeth Z _{D of the} input first sun gear, so that the transmission coefficient i ₀ = Z _B Z _D / Z _A Z _{C has} a value between 0 and 1. Meanwhile, Z _B and Z _C represent the number of teeth of the planetary gear corresponding to the second sun gear and the first sun gear.

Based on the above design, when the engine is not powered and only powered by the first motor, if the carrier gear speed is fixed, the first sun gear is driven (rotation speed is ω1) and the second sun gear is driven (rotation speed is Under ω2), the same direction deceleration occurs, and the speed ratio is ω2/ω1=i ₀ .

In addition, based on the previous design, another case is when both the engine and the motor are powered, at this time, when the first sun gear (rotation speed ω1) and the carrier gear (rotation speed ωs) are driven and the second sun gear is driven (rotation speed) For ω2), the output speed is ω2=i ₀ ω2+(1-i ₀ )ωs, and the output torque of the second sun gear will be equal to the sum of the output torque of the first sun gear and the carrier gear, so that Achieve the effect of power mixing.

As can be seen from the above, the hybrid mechanism proposed by the present disclosure can provide a more complete power drive than the existing power mixing structure. In the conventional power mixing structure, due to the coaxial design of the motor and the engine, the torque is increased in the coaxial state, but the rotation speed is not increased, so that the speed cannot be increased any more. In contrast, the hybrid unit used in the present disclosure solves the drawbacks of the conventional structure, that is, when the multi-drive force is provided to increase the torque, the rotational speed thereof also increases.

Based on the hybrid mechanism described in the above FIGS. 1-3, the hybrid power mechanism of the present disclosure can provide four different power supply modes, that is, power can be supplied by a battery or an engine according to requirements to adjust the operation of the differential. State, the operation description of the four power mixing modes can be further described below with the first to third figures.

Please refer to FIG. 4A, which is a schematic diagram showing the operation of the first mode of the power mixing mode of the hybrid mechanism of the present disclosure. The first mode may be referred to as an all-electric mode, that is, the engine 1 and the second motor 21 are not. Power is supplied, and electric energy is supplied from the battery 3 to the first motor 20 to generate power. As shown in the figure, the brake unit 8 locks the fifth gear 94 such that the carrier gear 61 coupled to the fifth gear 94 does not rotate, so that the engine 1 and the second motor 21 are unable to provide power, and the battery 3 will supply The current 200 is to the first motor 20, and the first motor 20 will output the first driving force 300 to the first sun gear 63 of the hybrid unit, between the first sun gear 63, the planetary gear 62 and the second sun gear 64. After being driven, the first driving force 300 is transmitted to the differential 7 via the third gear 92 and the fourth gear 93. As can be seen from the above, this first mode The model is an electric drive mode that provides a vehicle, such as a vehicle, for use on normal roads.

Please refer to FIG. 4B, which is a schematic diagram showing the operation of the second mode of the power mixing mode of the hybrid mechanism of the present disclosure. The second mode may be referred to as a tram extended mode, that is, the engine 1 and the second motor 21 are the same. The power is supplied from the battery 3 to the first motor 20 to generate power, but the engine 1 enables the second motor 21 as a generator to output the extended range current 201 to the battery 3. As shown in the figure, the brake unit 8 locks the fifth gear 94 such that the carrier gear 61 coupled to the fifth gear 94 does not rotate, and the first clutch 4 is engaged such that the engine 1 drives the second motor 21 as a generator to output The extended current 201 is supplied to the battery 3 for the battery 3 to accumulate electrical energy. Further, the battery 3 supplies a supply current 200 to the first motor 20, which will output the first driving force 300 to the first sun of the hybrid unit. After the gear 63 is driven by the first sun gear 63, the planetary gear 62 and the second sun gear 64, the first driving force 300 is transmitted to the differential 7 via the third gear 92 and the fourth gear 93. As can be seen from the above, this second mode is also an electric drive mode, which can increase the mileage when the vehicle uses this mode to drive on a normal road.

Please refer to FIG. 4C , which is a schematic diagram showing the operation of the third mode of the power mixing mode of the hybrid mechanism of the present disclosure. The third mode may be referred to as an engine motor hybrid mode, that is, by the engine 1 and the first motor 20 . Power is supplied, wherein the power source of the first motor 20 is provided by the battery 3. As shown in the figure, the battery 3 supplies a supply current 200 to the first motor 20, the first motor 20 outputs a first driving force 300 to the first sun gear 63, and the first clutch 4 and the second clutch 5 are engaged when the engine 1 during operation, the second driving force 301 is output, and is transmitted to the carrier gear 61 via the fifth gear 94, and then the planetary gear 62 is driven. At this time, the hybrid unit 6 reconciles the first driving force. 300 and the second driving force 301, and a harmonic driving force is outputted by the second sun gear 64, and transmitted to the differential 7 via the third gear 92 and the fourth gear 93. As can be seen from the above, the third mode is an engine power assisted electric drive mode that provides maximum power output, and the enhanced power can provide the vehicle for use in climbing or accelerating state.

Please refer to FIG. 4D, which is a schematic diagram illustrating the operation of the fourth mode of the power mixing mode of the hybrid mechanism of the present disclosure. This fourth mode may be referred to as a dual motor hybrid mode, that is, by the first motor 20 and the first The two motors 21 are supplied with power, and the power sources of the first motor 20 and the second motor 21 are provided by the battery 3. As shown in the figure, the battery 3 supplies a supply current 200 to the first motor 20, which outputs a first driving force 300 to the first sun gear 63, and further, the second clutch 5 is engaged without starting the engine 1, The battery 3 also supplies a supply current 200 to the second motor 21, and the second motor 21 outputs a second driving force 301 to the carrier gear 61 via the fifth gear 94, and then drives the planetary gear 62. At this time, the hybrid unit 6 reconciles The first driving force 300 and the second driving force 301 are output by the second sun gear 64 to a differential driving force 7 to the differential 7. As can be seen from the above, the fourth mode is an all-electric enhanced power mode, which can provide maximum electric power output, and can provide the vehicle for use under normal road driving.

In summary, the hybrid mechanism of the present disclosure transmits power between the engine and the power motor through a combination of two sun gears, a plurality of planet gears, and carrier gears, thereby achieving a change or adjusting the output power, and The disclosure provides a power mixing mode with four different requirements, thereby achieving a stepless shifting effect. As can be seen from the above, the hybrid mechanism proposed by the present disclosure not only has a small overall volume, but also avoids the difficulties that may be encountered in manufacturing, as compared with the conventional technique of using the inner ring gear planetary gear set as a power mixing. Therefore, the present disclosure is The hybrid mechanism is versatile and efficient Improved hybrid mechanism.

The above embodiments are merely illustrative of the principles of the disclosure and its effects, and are not intended to limit the disclosure. Any of the above-described embodiments may be modified and altered by those skilled in the art without departing from the spirit and scope of the disclosure. Therefore, the scope of protection of the present disclosure should be as set forth in the scope of the patent application described later.

1‧‧‧ engine

20‧‧‧First motor

21‧‧‧second motor

4‧‧‧First clutch

5‧‧‧Second clutch

6‧‧‧Hybrid unit

61‧‧‧ planet carrier gear

62‧‧‧ planetary gear

63‧‧‧First sun gear

64‧‧‧second sun gear

7‧‧‧Differential

8‧‧‧ brake unit

90‧‧‧First gear

91‧‧‧second gear

92‧‧‧ Third gear

93‧‧‧fourth gear

94‧‧‧ fifth gear

100‧‧‧Hybrid mechanism

Claims (18)

A hybrid powertrain includes: an engine; a hybrid power unit including a carrier gear, a first sun gear, a second sun gear, and at least one planetary gear, wherein the first sun gear, the second sun gear, and the At least one planetary gear is disposed in the carrier gear, the carrier gear is coupled to the at least one planetary gear, and the at least one planetary gear is coupled to the first sun gear and the second sun gear, and The first sun gear and the second sun gear are coaxially but not directly engaged; the first motor is coupled to the first sun gear; the second motor is coupled to the engine; the first clutch is coupled To the second motor; the second clutch is coaxial with the first clutch and coupled to the carrier gear; the differential is coupled to the second sun gear; the battery is coupled to the first a motor and the second motor for supplying a current to the first motor or the second motor or receiving an extended range current supplied from the second motor; and a fifth gear coupled to the first The clutch, the fifth gear train meshing with the planet gear carrier. The hybrid power mechanism of claim 1, further comprising a brake unit coupled to the second clutch. The hybrid power mechanism of claim 1, further comprising a first gear and a second gear, wherein the first sun gear train is coaxially connected to the first gear The shaft of the first motor is coaxially engaged with the second gear, and the first gear meshes with the second gear. The hybrid power mechanism of claim 1, further comprising a third gear and a fourth gear, wherein the second sun gear is coaxially engaged with the third gear, and the fourth gear is coupled to the differential The fourth gear train meshes with the third gear. The hybrid power mechanism of claim 1, wherein the hybrid vehicle is in the all-electric vehicle mode, and the brake unit causes the engine and the second motor to not supply power, and the supply current is supplied by the battery to The first motor causes the first motor to output a first driving force to the hybrid unit, and the first driving force is transmitted from the first sun gear to the differential via the second sun gear. The hybrid power mechanism of claim 1, wherein the hybrid power mechanism is in an extended range mode, wherein a brake unit locks a gear such that the carrier gear coupled to the gear does not rotate, the first a clutch engagement causes the engine to drive the second motor as a generator to provide the extended range current to the battery, and the battery provides the supply current to the first motor, causing the first motor to output a first driving force to the a hybrid power unit, the first driving force being transmitted from the first sun gear to the differential via the second sun gear. The hybrid power mechanism of claim 1, wherein the hybrid power mechanism is in an engine motor hybrid mode, the battery supplies the supply current to the first motor, and the first motor outputs the first driving force to the a hybrid power unit, the first driving force from the first sun gear to the second sun gear, and the first clutch and the second clutch are engaged to enable the engine to output a second driving force to the hybrid Unit, the second driving force from the carrier gear to the planetary gear a wheel, wherein the hybrid unit receives and combines the first driving force and the second driving force to output a harmonic driving force to the differential by the second sun gear. The hybrid power mechanism of claim 1, wherein the hybrid power mechanism is in a dual motor hybrid mode, the battery supplies the supply current to the first motor and the second motor, the first motor output a driving force to the hybrid unit, the first driving force from the first sun gear to the second sun gear, and the second clutch is engaged without starting the engine, and the second motor outputs a second driving force to a hybrid driving unit, the second driving force from the carrier gear to the planetary gear, wherein the hybrid unit receives the first driving force and the second driving force and performs reconciliation to be output by the second sun gear A harmonic drive is applied to the differential. A power mixing mode is a combination of a battery, a first motor, a second motor and an engine to provide a full electric vehicle mode, a tram extended mode, and an engine motor hybrid mode, wherein in the all-electric mode, the battery provides a battery Supplying current to the first motor to output power, and a brake unit causes the engine and the second motor to not supply power, and the battery supplies the supply current to the first motor, causing the first motor to output a first driving force To a hybrid unit, the first driving force is transmitted from the first sun gear of the hybrid unit to the second sun gear of the hybrid unit to a differential. A power mixing mode is a combination of a battery, a first motor, a second motor, and an engine to provide a full-electric mode, a trolley extended mode, and an engine-motor hybrid mode, wherein the engine provides the engine in the extended range mode The second motor power generates an extended range current to the battery, and the battery provides a supply current to the first A motor outputs power, and a brake unit locks a gear such that a carrier gear coupled to the gear does not rotate, and a first clutch engages the engine to drive the second motor as a generator to provide the extended range current To the battery, the battery provides the supply current to the first motor, causing the first motor to output a first driving force to a hybrid unit, the first driving force from the first sun gear of the hybrid unit The second sun gear of the hybrid unit is then transmitted to a differential. A power mixing mode is a combination of a battery, a first motor, a second motor, and an engine to provide a full-electric mode, a trolley extended mode, and an engine-motor hybrid mode, wherein in the engine-motor hybrid mode, the engine Power is mixed with power of the first motor to output power, and the battery supplies the supply current to the first motor, the first motor outputs a first driving force to a hybrid unit, the first driving force from the hybrid a first sun gear of the unit is transmitted to the second sun gear of the hybrid unit, and a first clutch and a second clutch are engaged to enable the engine to output a second driving force to the hybrid unit, the second a driving force from a carrier gear of the hybrid unit to a planetary gear of the hybrid unit, wherein the hybrid unit receives the first driving force and the second driving force and performs reconciliation to be replaced by the hybrid unit The two sun gears output a harmonic drive to a differential. A power mixing mode is a combination of a battery, a first motor, a second motor, and an engine to provide a full electric train mode, a tram extended mode, an engine motor hybrid mode, and a dual motor hybrid mode, wherein the dual motor hybrid mode The battery provides a supply current to the first motor and the second motor, the first motor outputs a first driving force to a hybrid unit, the first driving force from the hybrid unit The first sun gear is transmitted to the second sun gear of the hybrid unit, and a second clutch is engaged without starting the engine, and the second motor outputs a second driving force to the hybrid unit, the second driving force From the carrier gear of the hybrid unit to the planetary gear of the hybrid unit, wherein the hybrid unit receives the first driving force and the second driving force and harmonizes to be used by the second sun of the hybrid unit The gear output combines the driving force to a differential. The power mixing mode of claim 12, wherein the battery, the first motor, the second motor, and the engine are dynamically mixed by a hybrid unit. The power mixing mode of claim 13, wherein the hybrid unit comprises a carrier gear, a first sun gear, a second sun gear, and at least one planetary gear, wherein the first sun gear, the a second sun gear and the at least one planetary gear are disposed in the carrier gear, the carrier gear is coupled to the at least one planetary gear, and the at least one planetary gear is coupled to the first sun gear and the second sun a gear, and the first sun gear and the second sun gear are concentrically not directly engaged. The power mixing mode of claim 14, wherein the first motor is coupled to the first sun gear to provide the power to the hybrid unit. The power mixing mode of claim 14, wherein the second sun gear train is coupled to the differential, the differential receiving a harmonic driving force from the hybrid power unit for speed adjustment. The power mixing mode of claim 14, wherein the second motor is coupled to the first clutch, the first clutch engaging the engine and the second motor in the extended range mode of the vehicle, such that The engine drives the second motor as a power generation machine. The power mixing mode of claim 17, wherein the first clutch is coaxial with the second clutch, and the second clutch is coupled to the carrier gear.