KR20120117518A - A transmission system and control method thereof - Google Patents

A transmission system and control method thereof Download PDF

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Publication number
KR20120117518A
KR20120117518A KR1020110035317A KR20110035317A KR20120117518A KR 20120117518 A KR20120117518 A KR 20120117518A KR 1020110035317 A KR1020110035317 A KR 1020110035317A KR 20110035317 A KR20110035317 A KR 20110035317A KR 20120117518 A KR20120117518 A KR 20120117518A
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South Korea
Prior art keywords
gear
rotation
center
driving device
rotating
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KR1020110035317A
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Korean (ko)
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박계정
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박계정
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/70—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for change-speed gearing in group arrangement, i.e. with separate change-speed gear trains arranged in series, e.g. range or overdrive-type gearing arrangements
    • F16H61/702—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for change-speed gearing in group arrangement, i.e. with separate change-speed gear trains arranged in series, e.g. range or overdrive-type gearing arrangements using electric or electrohydraulic control means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H2057/02091—Measures for reducing weight of gearbox
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H2200/00—Transmissions for multiple ratios
    • F16H2200/0021—Transmissions for multiple ratios specially adapted for electric vehicles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H2702/00—Combinations of two or more transmissions
    • F16H2702/02—Mechanical transmissions with planetary gearing combined with one or more other mechanical transmissions

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Transmission Device (AREA)
  • Hybrid Electric Vehicles (AREA)

Abstract

The present invention relates to a shift system used in a vehicle and a shift control method thereof. More specifically, the shift is controlled without changing gears through the operation control of a driving device in an electric vehicle using only an electric motor or a hybrid vehicle using an engine together. It is possible to reduce the weight and volume of the shifting system itself due to the simple structure of the gear set of the shifting system, which can reduce the size and weight of the vehicle, as well as increase the durability, thereby reducing maintenance costs and improving fuel economy, and Since shifting is possible without change, it is possible to prevent shift shock and fuel economy reduction in the process of changing gears, and to increase energy efficiency through the production of electric energy through the development of electric motor in shifting process, and to use it in shifting system. Two driving devices to operate electric motor which is a driving device The present invention relates to a shift system and a shift control method for minimizing power consumption by controlling driving individually or simultaneously.

Figure P1020110035317

Description

Shift system and shift control method using the same

The present invention relates to a shifting system used for a vehicle and a shift control method thereof, and more particularly, to control the operation of the driving device and to rotate and rotate in a hybrid vehicle using an electric vehicle or an engine using only an electric motor. The gear set makes it possible to shift gears without changing gears, and the gear set of the gear shifting system is simple, so that the weight and volume of the shifting system itself can be reduced. It is possible to reduce fuel consumption, improve fuel economy, and to change gears without changing gears, thereby preventing shift shocks and fuel economy reductions occurring during gear changes, and producing electric energy through the development of electric motors in shifting processes. Improves energy efficiency, and the electric motor, the driving device used in the shifting system, is the most effective. Respectively or at the same time controlling the two drive units drive to operate in the interval relates to a variable speed system and a shift control method which enables to minimize power consumption.

In general automobiles or industrial facilities that use engines using fossil fuels, the engine's output torque and rotational speed limit change the engine's rotational force and rotational speed to match the vehicle's driving performance characteristics. Transmissions with gears and reverse gears should be used.

However, since transmissions having four or more gears in the related art have a lot of energy loss in the gear shifting process, especially when using such a conventional transmission such as an electric motor or a hybrid vehicle using an electric motor, the electric motor It has been a major culprit of reducing the energy efficiency of electric vehicles and hybrid vehicles by drastically reducing the efficiency of the vehicle.

In addition, conventional transmissions having four or more gears have a complicated structure, which increases manufacturing and repair costs, as well as increases efficiency in the transmission gear path and increases the weight of the vehicle itself due to the large volume and heavy weight of the transmission itself. In order to reduce fuel consumption and reduce the size and weight of the vehicle, there is a problem that becomes an obstacle.

In addition, conventional transmissions having four or more gears also suffer from problems such as ride comfort as well as energy efficiency due to shifting shocks generated in the process of changing gears for shifting.

In addition, since electric motors used in hybrid cars have excellent efficiency only in a specific area and poor efficiency characteristics in other areas, the efficiency of the electric motor decreases more and more rapidly due to the generation of high heat when operating for a long time. It is also important to control the electric motors used in electric vehicles to operate in areas of high efficiency.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems,

An object of the present invention is a shifting system capable of shifting without changing gears through a structure of a gear set that simultaneously controls the operation of a driving device and a revolution and rotation of a driving device in an electric vehicle using only an electric motor or a hybrid vehicle using an engine, and the shifting thereof. It is to provide a control method.

Another object of the present invention is to simplify the structure of the gear set of the transmission system, it is possible to reduce the weight and volume of the transmission system itself can reduce the size and weight of the vehicle, as well as increase the durability to reduce maintenance costs and improve fuel economy It is to provide a shift system and a shift control method thereof.

Another object of the present invention is to provide a shifting system and a shift control method having excellent gear shifting efficiency, which can prevent shifting shock or fuel economy reduction occurring during a gear shifting process because shifting is possible without shifting a gear. .

It is still another object of the present invention to provide a shift system and a shift control method for improving energy efficiency and fuel efficiency by controlling each drive unit to achieve maximum efficiency by utilizing two drives connected to the shift system. It is to provide.

Still another object of the present invention is to provide a shift system and a shift control method capable of increasing energy efficiency through production of electric energy through generation of an electric motor in a shift process.

Still another object of the present invention is to provide a shifting system and a shifting system for minimizing power consumption by simultaneously or simultaneously controlling two driving unit drivings so that an electric motor, which is a driving device used in a shifting system, can operate in the highest efficiency section. It is to provide a control method.

The shift system and the shift control method using the same for achieving the above object of the present invention includes the following configuration.

A shift system according to an embodiment of the present invention includes a first gear connected to the first driving device and rotating; A gear set connected to the first gear and rotating or rotating; A second driving device connected to one side of the gear set and operating; Control unit for controlling the second drive device or the first drive device in accordance with the torque, characterized in that the shift is possible without changing gears through the operation control of the first drive device or the second drive device.

According to another embodiment of the present invention, a shift system according to the present invention includes a second gear that is rotated in conjunction with the rotation of the first gear while the gear set is coupled to the first gear by using a rotation shaft; A third gear which is coupled to one side of the second gear and rotates in conjunction with a revolution or rotation of the second gear; And a fourth gear coupled to the other side of the second gear so as to face the third gear to rotate in conjunction with a revolution or rotation of the second gear, wherein the second driving device is connected to the third gear. It is characterized by.

According to another embodiment of the present invention, the shift system according to the present invention is characterized in that the third gear connected to the second driving device is smaller than the first gear connected to the first driving device.

According to another embodiment of the present invention, in the shifting system according to the present invention, the first gear is formed with the same or greater number of gear values than the first drive shaft gear value of the first driving device engaged with, and the third gear It is characterized in that the gear teeth of the same number as the second drive shaft gear teeth of the second driving device meshed.

According to another embodiment of the present invention, in the shifting system according to the present invention, the gear set is formed of a pair of gears of the same size in which the second gears are positioned opposite to each other, and the first gear is disposed opposite to each other. The third gear and the fourth gear are each coupled to a pair of second gears at the same time.

According to a further embodiment of the invention, the shifting system according to the invention further comprises a differential set operating in connection with the other side of the gear set, the differential set comprising a differential housing within the differential housing. A pair of pinion gears that rotate in conjunction with rotation, a first side gear that is coupled to one pair of pinion gears at the same time and rotates in opposition, and the pair of pinion gears to face the first side gears on the other side of the pair of pinion gears. And a second side gear coupled and interlocked with each other, wherein one axle is coupled to the first side gear through the center of the second driving device, the third gear, and the fourth gear, and the other axle is connected to the first side gear. It is characterized in that coupled to the second side gear.

According to another embodiment of the present invention, the shift system according to the present invention is coupled to the gear set using a third rotating shaft to the first gear while rotating the fifth gear that rotates in conjunction with the rotation of the first gear A gear and a sixth gear; And a first center gear and a second center gear which are respectively coupled to the rotation centers of the first gear, wherein the fifth gear is the first center gear, and the sixth gear is the second center gear. Each of the gears is engaged, and the fifth gear and the sixth gear are engaged with each other to rotate, and the second driving device is connected to the first central gear.

According to another embodiment of the present invention, in the shifting system according to the present invention, the fifth gear, the sixth gear, the first center gear, and the second center gear are each formed with the gear teeth inclined to the shaft in the form of a helical gear. It is characterized by rotating in engagement.

According to another embodiment of the present invention, the shift system according to the present invention is characterized in that the first central gear connected with the second driving device is smaller than the first gear connected with the first driving device.

According to another embodiment of the present invention, in the shift system according to the present invention, the first gear is formed with the same or greater number of gear values than the first drive shaft gear value of the first driving device engaged with, and the first center Gears are characterized in that the same number of gear teeth as the second drive shaft gear teeth of the second driving device meshed with the gear is formed.

According to yet another embodiment of the present invention, the transmission system according to the present invention is the gear set is coupled to the first gear by using a fourth rotational shaft is capable of rotating while rotating in conjunction with the rotation of the first gear A gear and a tenth gear; And a third center gear and a fourth center gear which are respectively coupled to the rotation centers of the first gear, wherein the ninth gear is the third center gear and the tenth gear is the fourth center gear. Each of the gears is engaged, and the ninth gear and the tenth gear are engaged with each other to rotate, and the second driving device is connected to the third central gear.

According to another embodiment of the present invention, the shifting system according to the present invention rotates by engaging the third center gear and the ninth gear, the fourth center gear and the tenth gear in the form of a worm gear so that the rotation center axis intersect, respectively. The ninth gear and the tenth gear are positioned in parallel with each other, and one side is engaged with each other to rotate.

According to another embodiment of the present invention, the shift system according to the present invention is characterized in that the third central gear connected to the second driving device is smaller than the first gear connected to the first driving device.

According to another embodiment of the present invention, in the shift system according to the present invention, the first gear is formed with the same or greater number of gear values than the first drive shaft gear value of the first driving device engaged with, and the third center Gears are characterized in that the same number of gear teeth as the second drive shaft gear teeth of the second driving device meshed with the gear is formed.

A shift control method using a shift system according to an embodiment of the present invention includes a driving step of rotating a first gear by operating a first drive device; A shifting step of shifting by controlling the rotation of the gear set by controlling the rotation of the second driving device or the first driving device through the control unit; This is characterized by possible.

According to another embodiment of the present invention, in the shift control method according to the present invention, the driving step includes a first gear rotation step of rotating the first gear connected to the first drive shaft of the first drive device, and the first gear A third and fourth gear rotation step of rotating the third gear and the fourth gear in conjunction with rotation; a differential device rotation step of rotating the differential device in conjunction with rotation of the fourth gear; and connected to the differential device set. It characterized in that it comprises an axle rotation step of rotating the axle.

According to still another embodiment of the present invention, in the shift control method according to the present invention, the shifting step may be performed by rotating the second driving shaft of the second driving device connected to the third gear rotating in the third and fourth gear rotating steps. It is characterized in that it comprises a first shifting step for increasing the rotational speed of the fourth gear by generating power in the second drive device.

According to another embodiment of the present invention, in the shift control method according to the present invention, the shifting step may be performed by fixing the second driving shaft of the second driving device connected to the third gear in the third and fourth gear rotation steps. And a second shifting step of increasing the rotational speed of the four gears.

According to another embodiment of the present invention, in the shift control method according to the present invention, the shifting step may include the second driving shaft of the second driving device connected to the third gear in the third and fourth gear rotation steps. And a third shifting step of increasing the rotational speed of the fourth gear by rotating in a direction opposite to the rotational direction.

According to another embodiment of the present invention, in the shift control method according to the present invention, the shifting step stops the rotation of the first gear by the first drive device, and rotates the high speed of the third gear by the second drive device. And a fourth shifting step of rotating the fourth gear at high speed.

According to another embodiment of the present invention, in the shift control method according to the present invention, the shifting step may include the second driving shaft of the second driving device connected to the third gear in the third and fourth gear rotation steps. And a fifth shifting step of reducing the rotational speed of the fourth gear by rotating in the same direction as the rotational direction.

According to still another embodiment of the present invention, a shift control method according to the present invention includes a second driving step of rotating the third gear by operating the second driving device; A shifting step of shifting by controlling the rotation of the gear set or the first gear by operating the second driving device or the first driving device through a control unit; and by controlling the operation of the second driving device or the first driving device. It is characterized in that the shift is possible without changing the gear.

According to another embodiment of the present invention, in the shift control method according to the present invention, the second driving step may include a third gear rotating step of rotating a third gear connected to a second driving shaft of the second driving device; A fourth gear rotation step in which a fourth gear rotates in conjunction with rotation of the three gears; a differential device rotation step in which a differential set rotates in conjunction with rotation of the fourth gear; and an axle connected to the differential set rotates. It characterized in that it comprises an axle rotation step.

According to still another embodiment of the present invention, in the shift control method according to the present invention, the shifting step is performed by generating power by switching the second drive device connected to the third gear to the power generation mode, thereby reducing the rotational speed of the fourth gear. It characterized in that it comprises a sixth shift step.

According to another embodiment of the present invention, in the shift control method according to the present invention, the shifting step rotates the first gear connected to the first drive shaft of the first drive device in a direction opposite to the rotation direction of the fourth gear, And a seventh gear shifting step of reducing the rotational speed of the fourth gear.

According to another embodiment of the present invention, in the shift control method according to the present invention, the shifting step rotates the first gear connected to the first drive shaft of the first drive device in the same direction as the rotation direction of the fourth gear, And an eighth shifting step of increasing the rotational speed of the fourth gear.

According to another embodiment of the present invention, a shift control method according to the present invention includes a third driving step of rotating the first gear by operating the first driving device; And a gear shifting step of controlling the rotation of the gear set by controlling the second driving device or the first driving device through the control unit, wherein the third driving step includes: a first drive connected to the first driving shaft of the first driving device; A first gear rotation step of rotating the gear, a first and second center gear rotation step of rotating the first and second center gears in conjunction with rotation of the first gear, and rotation of the second center gear. A differential gear rotation step of interlocking with the differential set is rotated and the axle rotation step of rotating the axle connected to the differential set, so that the shift is controlled without changing the gear through the operation control of the second drive device or the first drive device. It is characterized by possible.

According to another embodiment of the present invention, in the shift control method according to the present invention, the shifting step may include the second driving shaft of the second driving device connected to the first center gear rotating in the first and second center gear rotation steps. It is characterized in that it comprises a ninth gear shift step of increasing the rotational speed of the second center gear by generating power in the second drive device using the rotation.

According to still another embodiment of the present invention, in the shift control method according to the present invention, the shifting step may be performed by fixing a second drive shaft of the second driving device connected to the first center gear in the first and second center gear rotation steps. And a tenth speed shift step of increasing the rotation speed of the second center gear.

According to another embodiment of the present invention, in the shift control method according to the present invention, the shifting step includes a second driving shaft of the second driving device connected to the first center gear in the first and second center gear rotation steps; And an eleventh shifting step of increasing the rotational speed of the second center gear by rotating in a direction opposite to the rotational direction of the center gear.

According to another embodiment of the present invention, in the shift control method according to the present invention, the shifting step stops the rotation of the first gear by the first drive device, and the high speed of the first center gear by the second drive device. And a twelfth shifting step of rotating the second center gear at high speed by rotation.

According to another embodiment of the present invention, in the shift control method according to the present invention, the shifting step includes a second driving shaft of the second driving device connected to the first center gear in the first and second center gear rotation steps; And a thirteenth shifting step of reducing the rotational speed of the second center gear by rotating in the same direction as the rotational direction of the center gear.

According to still another embodiment of the present invention, a shift control method according to the present invention includes a fourth driving step of rotating the first center gear by operating the second driving device; And a gear shifting step of controlling the rotation of the gear set or the first gear by operating the second driving device or the first driving device through the control unit, wherein the fourth driving step includes the second driving shaft of the second driving device. A first center gear rotation step of rotating the first center gear connected to the second center gear; a second center gear rotation step of rotating the second center gear in conjunction with the rotation of the first center gear; and a rotation of the second center gear. A differential gear rotation step of interlocking with the differential set is rotated and the axle rotation step of rotating the axle connected to the differential set, so that the shift is controlled without changing the gear through the operation control of the second drive device or the first drive device. It is characterized by possible.

According to another embodiment of the present invention, in the shift control method according to the present invention, the speed change step is to generate power by switching the second drive device connected to the first center gear to the power generation mode, the rotational speed of the second center gear It characterized in that it comprises a fourteenth speed change step to decelerate.

According to still another embodiment of the present invention, in the shift control method according to the present invention, the shifting step may be performed by rotating the first gear connected to the first drive shaft of the first driving device in a direction opposite to the rotation direction of the second central gear. And a fifteenth shifting step of reducing the rotational speed of the second center gear.

According to still another embodiment of the present invention, in the shift control method according to the present invention, the shifting step may be performed by rotating the first gear connected to the first drive shaft of the first driving device in the same direction as the rotation direction of the second center gear. And a sixteenth shifting step of increasing the rotational speed of the second center gear.

According to still another embodiment of the present invention, a shift control method according to the present invention includes a fifth driving step of rotating the first gear by operating the first driving device; And a gear shifting step of controlling the rotation of the gear set by operating the second driving device or the first driving device through a control unit, wherein the fifth driving step includes: a first drive connected to the first driving shaft of the first driving device; A first gear rotation step of rotating the gear, a third and fourth gear rotation step of rotating the third and fourth center gears in conjunction with the rotation of the first gear, and the rotation of the fourth center gear. A differential gear rotation step of interlocking with the differential set is rotated and the axle rotation step of rotating the axle connected to the differential set, so that the shift is controlled without gear change through the operation control of the second drive or the first drive. It is characterized by possible.

According to a further embodiment of the present invention, in the shift control method according to the present invention, the shifting step may include the second drive shaft of the second driving device connected to the third center gear rotating in the third and fourth center gear rotation steps. It is characterized in that it comprises a seventeenth shift step of increasing the rotational speed of the fourth center gear by generating power in the second drive device by using the rotation.

According to another embodiment of the present invention, in the shift control method according to the present invention, the shifting step may be performed by fixing the second drive shaft of the second driving device connected to the third center gear in the third and fourth center gear rotation steps. And an eighteenth shifting step of increasing the rotational speed of the fourth center gear.

According to another embodiment of the present invention, in the shift control method according to the present invention, the shifting step may include: And a nineteenth shifting step of increasing the rotational speed of the fourth center gear by rotating in a direction opposite to the rotational direction of the center gear.

According to another embodiment of the present invention, in the shift control method according to the present invention, the shifting step stops the rotation of the first gear by the first drive device, and the high speed of the third center gear by the second drive device. And a 20th speed shift step of rotating the fourth center gear at high speed by rotation.

According to still another embodiment of the present invention, in the shift control method according to the present invention, the shifting step may include a second driving shaft of the second driving device connected to the third center gear in the third and fourth center gear rotation steps. And a twenty-first shifting step of reducing the rotational speed of the fourth center gear by rotating in the same direction as the rotational direction of the center gear.

According to another embodiment of the present invention, the shift control method according to the present invention includes a sixth driving step of operating the second driving device to rotate the third center gear; And a shifting step of controlling the rotation of the gear set or the first gear by operating the second driving device or the first driving device through a control unit, wherein the sixth driving step includes a second driving shaft of the second driving device. A third center gear rotation step of rotating a third center gear connected to the fourth center gear; a fourth center gear rotation step of rotating a fourth center gear in conjunction with rotation of the third center gear; and rotation of the fourth center gear. A differential gear rotation step of interlocking with the differential set is rotated and the axle rotation step of rotating the axle connected to the differential set, so that the shift is controlled without changing the gear through the operation control of the second drive device or the first drive device. It is characterized by possible.

According to another embodiment of the present invention, in the shift control method according to the present invention, the shifting step is to generate power by switching the second drive device connected to the third center gear to the power generation mode, the rotational speed of the fourth center gear It characterized in that it comprises a twenty-second shift step of decelerating.

According to still another embodiment of the present invention, in the shift control method according to the present invention, the shifting step may be performed by rotating the first gear connected to the first drive shaft of the first driving device in a direction opposite to the rotation direction of the fourth central gear. And a twenty-third step of reducing the rotational speed of the fourth center gear.

According to still another embodiment of the present invention, in the shift control method according to the present invention, the shifting step may be performed by rotating the first gear connected to the first drive shaft of the first driving device in the same direction as the rotation direction of the fourth central gear. And a twenty-fourth shifting step of increasing the rotational speed of the fourth center gear.

The present invention can obtain the following effects by the above-described embodiment, the constitution described below, the combination, and the use relationship.

The present invention has the effect of shifting without changing the gears through the structure of the gear set in parallel with the operation control and idle and rotation of the drive device in the electric vehicle using only the electric motor or the engine together.

The present invention has a simple structure of the gear set of the shifting system, which can reduce the weight and volume of the shifting system itself, which can reduce the size and weight of the vehicle, as well as increase durability, thereby reducing maintenance costs and improving fuel economy. Has

In the present invention, since the shift can be performed without changing the gear, it is possible to prevent the shift shock or fuel economy reduction occurring in the process of changing the gear, and the gear shifting efficiency is excellent.

The present invention has the effect of improving the energy efficiency and fuel economy through the control to enable each drive device to achieve the maximum efficiency by utilizing the two drive devices connected to the transmission system.

The present invention has the effect of increasing the energy efficiency through the production of electrical energy through the development of the electric motor in the shifting process.

The present invention has the effect of minimizing power consumption by controlling the driving of the two drive units, respectively or simultaneously so that the electric motor which is the drive unit used in the shifting system can operate in the highest efficiency section.

1 is a cutaway perspective view of a shift system according to an embodiment of the present invention;
2 is a partially exploded perspective view of the shifting system of FIG.
3 is a cross-sectional view of the shifting system of FIG.
4 is a perspective view of the gear set of FIG.
5 is a perspective view of the differential set of FIG.
6 is a block diagram illustrating an example of a shift control method using the shift system of FIG. 1.
7 is a reference diagram showing a driving step of FIG.
FIG. 8 is a reference diagram illustrating a first shift step of FIG. 6.
FIG. 9 is a reference diagram illustrating a second shift step of FIG. 6.
FIG. 10 is a reference diagram illustrating a third shift step of FIG. 6.
FIG. 11 is a reference diagram illustrating a fourth shifting step of FIG. 6.
12 is a reference diagram illustrating a fifth shifting step of FIG. 6.
FIG. 13 is a block diagram illustrating another example of a shift control method using the shift system of FIG. 1. FIG.
14 is a reference diagram illustrating a second driving step of FIG. 13.
15 is a reference diagram illustrating the sixth shifting step of FIG. 13.
FIG. 16 is a reference diagram illustrating a seventh shift stage of FIG. 13.
17 is a reference diagram illustrating an eighth shifting step of FIG. 13.
18 is an exploded perspective view of a shift system according to another embodiment of the present invention.
19 is a partially exploded perspective view of the shift system of FIG. 18.
20 is a cross-sectional view of the shifting system of FIG. 18.
FIG. 21 is a perspective view of the gear set of FIG. 18
22 is a perspective view showing another example of the gear set of FIG.
FIG. 23 is a block diagram illustrating an example of a shift control method using the shift system of FIG. 18. FIG.
FIG. 24 is a reference diagram illustrating a third driving step of FIG. 23.
FIG. 25 is a reference diagram illustrating a ninth shift stage of FIG. 23.
FIG. 26 is a reference diagram illustrating the tenth shift step of FIG. 23.
27 is a reference diagram illustrating the eleventh shifting step of FIG. 23.
28 is a reference diagram illustrating the twelfth shifting step of FIG. 23.
29 is a reference diagram illustrating the thirteenth shift stage of FIG. 23.
30 is a block diagram illustrating another example of a shift control method using the shift system of FIG. 18.
FIG. 31 is a reference diagram illustrating a fourth driving step of FIG. 30.
32 is a reference diagram illustrating the fourteenth shifting step of FIG. 30.
33 is a reference diagram illustrating the fifteenth shift step of FIG. 30.
34 is a reference diagram illustrating the sixteenth shifting step of FIG. 30.
35 is a cutaway perspective view of a shift system according to another embodiment of the present invention.
FIG. 36 is a partially exploded perspective view of the shift system of FIG. 35. FIG.
37 is a cross-sectional view of the shifting system of FIG. 35.
38 is a perspective view of the gear set of FIG. 35.
39 is a block diagram illustrating an example of a shift control method using the shift system of FIG. 35.
40 is a reference diagram illustrating a fifth driving step of FIG. 39.
41 is a reference diagram illustrating the seventeenth shifting step of FIG. 39.
42 is a reference diagram illustrating an eighteenth shifting step of FIG. 39.
43 is a reference diagram illustrating the nineteenth shifting step of FIG. 39.
44 is a reference diagram illustrating the 20th shift step of FIG. 39.
45 is a reference diagram illustrating the twenty-first shifting step of FIG. 39.
46 is a block diagram illustrating another example of a shift control method using the shift system of FIG. 35.
47 is a reference diagram illustrating the sixth driving step of FIG. 46.
48 is a reference diagram illustrating the twenty-second shift stage of FIG. 46;
49 is a reference diagram illustrating the twenty-third shifting step of FIG. 46;
50 is a reference diagram illustrating the 24th shift step of FIG. 46;

Hereinafter, exemplary embodiments of a shift system and a shift control method using the same according to the present invention will be described in detail with reference to the accompanying drawings. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

1 is a cutaway perspective view of a shift system according to an embodiment of the present invention, FIG. 2 is a partially exploded perspective view of the shift system of FIG. 1, FIG. 3 is a cross-sectional view of the shift system of FIG. 1, and FIG. 4 is a view of FIG. Fig. 5 is a perspective view of the gear set of Fig. 1, Fig. 6 is a block diagram showing an example of a shift control method using the shifting system of Fig. 1, and Fig. 7 shows the driving step of Fig. 6. 8 is a reference diagram illustrating a first shifting step of FIG. 6, FIG. 9 is a reference diagram showing a second shifting step of FIG. 6, and FIG. 10 is a third shifting step of FIG. 6. 11 is a reference diagram showing a fourth shifting stage of FIG. 6, FIG. 12 is a reference diagram showing a fifth shifting stage of FIG. 6, and FIG. 13 is a reference diagram showing the shifting system of FIG. 1. FIG. 14 is a block diagram showing another example of the shift control method used, FIG. 14 is a reference diagram showing the second driving step of FIG. 13, and FIG. 13 is a reference diagram illustrating the sixth shift stage, FIG. 16 is a reference diagram illustrating the seventh shift stage of FIG. 13, and FIG. 17 is a reference diagram illustrating the eighth shift stage of FIG. 13.

1 to 5, a shift system according to an embodiment of the present invention includes a first gear 20 which is connected to a first driving device 10 and rotates; A gear set 30 connected to the first gear 20 to rotate; A second driving device 40 connected to one side of the gear set 30 to operate; A differential set 50 which is connected to the other side of the gear set 30 and operates; Control unit 60 for controlling the second drive device 40 or the first drive device 10 in accordance with the torque, including, through the operation control of the first drive device 10 or the second drive device 40 It is characterized in that the shift is possible without changing the gear. In the present invention, the first drive device 10 and the second drive device 40 means a power providing device for rotating the first gear 20 or the gear set 30 by driving and providing power. In the case of an automobile, the first driving device 10 and the second driving device 40 are both formed of an electric motor. In the case of a hybrid vehicle, any one of the first driving device 10 and the second driving device 40 may be used. One may be formed of an electric motor. Hereinafter, the operation and function of the present invention will be described by taking an example in which the first driving device 10 and the second driving device 40 are both electric motors.

The first driving device 10 is a power supply device connected to the first gear 20 to be described later to provide power for rotating the first gear 20, the first driving device as shown in FIG. When the 10 is formed of an electric motor, the first drive device 10 includes a stator 120 including a coil and a rotor 130 including a permanent magnet, and the rotor 130 is When connected to the first drive shaft 110 is supplied with electricity is rotated with the first drive shaft (110). At this time, since the first gear 20 to be described later is engaged with the gear 111 of the first drive shaft 110, the first drive shaft 110 rotating together with the rotor 130 is the first gear to be described later. 20 to transmit the driving force to rotate in conjunction.

Looking at the meshed form of the first drive shaft 110 and the first gear 20, as shown in Figure 1, etc., the axial direction of the first drive shaft 110 and the rotation center axis direction of the first gear 20 Since they engage with each other at right angles, the drive transmission direction is changed at right angles. In this case, the first driving shaft 110 and the first gear 20 is in engagement with each other may be formed in the form of spiral bevel gears, hypoid gears, etc., the gear teeth formed on both of the spur gears, helical gears. Can be engaged in various forms. In addition, the number of gear values of the first gear 20 may be generally 1 to 30 times, preferably 4 to 8 times more than the number of the gears 111 of the first driving shaft 110 (of course, It is just one example and various variations are possible depending on the situation). Therefore, in the process of transmitting the driving force from the first drive shaft 110 to the first gear 20, the deceleration of the 1/4 to 1/8 is preferably made. For reference, if necessary, a fixed gear box may be used on the first drive shaft 110, or a driving force may be transmitted by using a reduction gear.

The first gear 20 is a gear that rotates in conjunction with the first drive shaft 110 of the first drive device 10, as described above, the first gear 20 in the first drive shaft 110 Changes the drive transmission direction to be transmitted at right angles (this is described as an example and other forms of connection are possible), as well as in the process of transmitting driving force (preferably as described above). The deceleration of the degree is made. Therefore, the first gear 20 is suitable where the initial acceleration and large torque are required. In particular, as shown in FIG. 1, the first gear 20 is connected to the gear set 30 to be described later, in which case the first gear 20 rotates. Gear set 30 connected therein is also rotated in conjunction with this. A ring gear or the like may be preferably used as the first gear 20, and a detailed operation thereof will be described later.

The gear set 30 is a combination of gears connected to the first gear 20 and capable of rotating in conjunction with the rotation of the first gear 20. The gears in the gear set 30 are idle and It is characterized by utilizing the principle of shifting without changing gears through the operation control of the first drive device 10 or the second drive device 40 while rotating in parallel. An example of such a gear set 30 is a second gear 311 which is coupled to the first gear 20 using a rotating shaft 3111 and rotates while interlocking with the rotation of the first gear 20. Wow; A third gear 312 coupled to one side of the second gear 311 to rotate in conjunction with a revolution or rotation of the second gear 311; And a fourth gear 313 coupled to the other side of the second gear 311 so as to face the third gear 312 so as to rotate in conjunction with a revolution or rotation of the second gear 311. . Gear teeth formed on the gears of the gear set 30 may be formed in a variety of gear teeth, preferably in the form of a helical gear that is advantageous in efficiency and noise.

The second gear 311 is coupled to the first gear 20 using the rotation shaft 3111 and rotates in conjunction with the rotation of the first gear 20. As described above, the first gear 20 is coupled to the inside of the first gear 20 using the rotation shaft 3111. Since the rotation shaft 3111 becomes the rotation center axis of the second gear 311, the second gear 311 is It is possible to rotate, i.e., rotate around the pivot 3111. In addition, since the second gear 311 is coupled to the inside of the first gear 20, when the first gear 20 rotates, the second gear 311 rotates, i.e., revolves. The third gear 312 and the fourth gear 313 are engaged to face each other on both sides of the second gear 311, the rotational center axis of the second gear 311 and the third gear 312 and Since the rotation center axes of the fourth gear 313 are formed to be orthogonal to each other, the rotation center axes of the third gear 312 and the fourth gear 313 coincide with the rotation center axes of the first gear 20.

In addition, the second gear 311 may be formed of a pair of gears having the same size positioned to face each other, in which case the third gears are located opposite to each other on both sides of the second gear 311. 312 and the fourth gear 313 are engaged with the pair of second gear 311 at the same time, respectively, so that the second gear 311, the third gear 312 and the fourth gear 313 are more tightly sealed. Are combined and rotated exactly in conjunction with each other's rotation. For reference, the second gear 311 may be modified in various forms according to the torque capacity as needed.

The third gear 312 is engaged with one side of the second gear 311 is rotated in conjunction with the rotation or rotation of the second gear 311, the second gear as shown in FIG. It is coupled so as to be orthogonal to (311), and the central axis of rotation coincides with the central axis of rotation of the first gear (20). The third gear 312 is connected to the second drive shaft 410 of the second drive device 40, which will be described later, the inner circumference of the gear 3121 of the third gear 312 of the second drive shaft 410 Since the gears are inserted into and engaged with each other, the axial direction of the second drive shaft 410 and the rotation center axis direction of the third gear 312 coincide with each other, so that the driving transmission direction is the same. In addition, the number of gear teeth of the second drive shaft 410 and the number of gears 3121 of the inner circumferential surface of the third gear 312 are preferably equally formed to be engaged 1: 1, and thus, the second drive shaft 410. Since the driving force is also transmitted 1: 1 to the third gear 312 or the third gear 312 to the second drive shaft 410, both have the same rotational speed (reference to the second drive shaft if necessary 410 may also transmit a driving force using a fixed gearbox or a gearbox. In addition, the size of the third gear 312, that is, the radius is preferably smaller than the first gear 20 is formed to be advantageous for acceleration and high speed rotation.

The fourth gear 313 is coupled to the other side of the second gear 311 so as to face the third gear 312 to rotate in conjunction with the rotation or rotation of the second gear 311, FIG. As shown in FIG. 4, the second gear 311 is orthogonally coupled to the second gear 311, and the first gear 20 is coincident with the central axis of rotation with the rotational center axis, and is opposed to the third gear 312. The fourth gear 313 is to be connected to the differential housing 510 of the differential set 50, which will be described later, the one side of the differential housing 510 to the gear 3131 of the inner peripheral surface of the fourth gear 313 Since the gear 511 is inserted into and engaged with each other, the axial direction of the differential housing 510 and the rotation center axis direction of the fourth gear 313 coincide with each other, so that the driving transmission direction is the same. In addition, the number of gears of the gear 511 of one side of the differential housing 510 and the number of gears 3131 of the inner circumferential surface of the fourth gear 313 may be equally formed to be engaged 1: 1. Since the driving force is transmitted 1: 1 in the four gear 313 to the differential housing 510, both have the same rotation speed.

Referring to the operation principle of the gear set 30, when the first gear 20 is rotated in conjunction with the rotation of the first drive shaft 110, the rotating shaft (3111) to the first gear (20). The third gear 312 and the fourth gear 313 coupled to both sides of the second gear 311 are respectively rotated while the second gear 311 coupled to each other rotates. At this time, the second driving shaft 410 of the second driving device is driven in the same direction as the rotational direction of the third gear 312 by the operation control of the second driving device 40 engaged with the third gear 312. When the rotational speed of the third gear 312 is doubled, the second gear 311 rotates accordingly, thereby reducing the rotational speed of the fourth gear 313, and conversely, the second driving shaft of the second driving device ( When the rotational speed of the third gear 312 is reduced because the 410 is driven in a direction opposite to the rotational direction of the third gear 312, the second gear 311 rotates accordingly to the fourth gear 313. The speed of rotation is doubled. The shift process using this principle will be described later in the description of the shift control method.

The second driving device 40 is a power supply device connected to the third gear 312 of the gear set 30 to provide power for rotating the third gear 312, as shown in FIG. When the second driving device 40 is formed of an electric motor, as in the first driving device 10, the second driving device also includes a stator 420 including a coil and a rotor including a permanent magnet ( 430 is formed, and the rotor 430 is connected to the second driving shaft 410 to rotate together with the second driving shaft 410 when electricity is supplied. In this case, since the third gear 312 of the gear set 30 is engaged with the second driving shaft 410, the second driving shaft 410 rotates or rotates in cooperation with the third gear 312. It rotates in conjunction with the rotation of the three gears.

Looking at the meshed form of the second drive shaft 410 and the third gear 312, the gear of the second drive shaft 410 to the gear 3121 of the inner peripheral surface of the third gear 312 as shown in FIG. Since the 411 is inserted into and engaged with each other, the driving direction is the same since the axial direction of the second drive shaft 410 and the rotation center axis direction of the third gear 312 coincide with each other. In addition, the number of gears 411 of the second driving shaft 410 and the number of gears 3121 of the inner circumferential surface of the third gear 312 may be equally formed to be engaged 1: 1. Thus, the second driving shaft ( Since the driving force is also transmitted 1: 1 to the third gear 312 or the third gear 312 to the second drive shaft 410, both have the same rotational speed. The second drive shaft 410 may also transmit a driving force by using a fixed gear box or a reduction gear.

The second driving device 40 is driven under the control of the control unit 60 to control the rotational speed of the third gear 312 to shift the rotational speed of the fourth gear 313, as described above. When the second driving device 40 accelerates the third gear 312 in the same direction as the rotation direction of the fourth gear 313, the rotation speed of the fourth gear 313 is reduced, and conversely, the third gear 312 ) Is accelerated in a direction opposite to the rotational direction of the fourth gear 313 by using the principle that the rotational speed of the fourth gear 313 is increased to control the rotational speed of the third gear 312 by the fourth gear ( 313) the speed of rotation. The shift process using this principle will be described later in the description of the shift control method.

The differential set 50 is connected to the other side of the gear set 30 and is configured to smoothly travel by rotating both axles at different speeds. The differential set 50 Is a pair of pinion gears 520 that rotate in conjunction with the rotation of the differential housing 510 in the differential housing 510, and the pair of pinion gears 520 simultaneously rotated in conjunction with the pair of pinion gears 520 to rotate. It may include a first side gear 530 and a second side gear 540 coupled to the other side of the pair of pinion gears 520 opposite to the first side gear 530 to rotate in conjunction with each other. For reference, this is only one embodiment, and other types of differential devices such as ball type, CAM type, planetary gear type, and the like may be variously used.

The differential housing 510 constitutes the body or main frame of the differential set 50, and as shown in FIG. 5, the differential housing 510 includes a pinion gear 520 and a first side. Gears 530 and second side gears 540 are positioned to rotate in conjunction with the rotation of the differential housing 510. One side of the differential housing 510 is connected to the fourth gear 313, and as described above, a gear formed at an outer circumferential surface of one side of the differential housing 510 to the inner circumferential gear 3131 of the fourth gear 313. Since the 511 is inserted into and engaged with each other, the axial direction of the differential housing 510 and the rotation center axis direction of the fourth gear 313 coincide with each other, and thus the driving transmission direction is the same. In addition, the number of gears 511 formed on one side of the differential housing 510 and the number of gears 3131 of the inner circumferential surface of the fourth gear 313 may be equally formed to be engaged 1: 1. Since the driving force is transmitted from the gear 313 to the differential housing 510 in a ratio of 1: 1, both of them have the same rotation speed (if necessary, the fixed gear is also between the differential housing 510 and the fourth gear 313). It is also possible to use a box or gearbox to transmit the driving force.

The pinion gear 520 is coupled to the second housing shaft 521 in the differential housing 510 to be rotated while being rotated in conjunction with the rotation of the differential housing 510. As described above, since the second rotation shaft 521 coupling the pinion gear 520 to the differential housing 510 becomes a rotational center axis of the pinion gear 520, the pinion gear 520 is the second rotation shaft. Rotation around (521), that is to be able to rotate. In addition, since the pinion gear 520 is coupled in the differential housing 510, when the differential housing 510 rotates, the pinion gear 520 rotates, ie, revolves when the differential housing 510 rotates. The first side gear 530 and the second side gear 540 are engaged with each other on both sides of the pinion gear 520 so as to be opposed to each other. The rotational center axis of the pinion gear 520 and the first side gear 530 are coupled to each other. And the rotation center axes of the second side gear 540 are orthogonal to each other, so that the rotation center axes of the first side gear 530 and the second side gear 540 coincide with the rotation center axes of the differential housing 510. do. In addition, the pinion gear 520 may be formed of a pair of gears of the same size positioned to face each other, in which case the first side gear (2) located on both sides of the pinion gear 520, respectively The 530 and the second side gear 540 are engaged with the pair of pinion gears 520 at the same time.

The first side gear 530 is configured to rotate by interlocking with the pair of pinion gears 520 simultaneously. As shown in FIG. 5, the first side gear 530 has one side on the inner circumferential surface of the first side gear 530. An axle 710 is coupled through the center of the second driving device 40, the third gear 312 and the fourth gear 313. That is, the one axle 710 only penetrates the centers of the second driving device 40, the third gear 312 and the fourth gear 313, and the second driving device 40 and the third gear. Since there is no direct connection with the 312 and the fourth gear 313, only the first independent of the rotation of the second driving device 40, the third gear 312 and the fourth gear 313 The side gear 530 is rotated to link directly with the rotation. Since the first side gear 530 and the axle 710 on one side are engaged at a gear ratio of 1: 1, the first side gear 530 is rotated at the same rotation ratio.

The second side gear 540 is coupled to the other side of the pair of pinion gears 520 so as to be opposed to the first side gear 530 so as to interlock and rotate. The second side gear 540 is shown in FIG. The axle 720 of the other side is coupled to the inner circumferential surface of the side gear 540. Since the second side gear 540 and the axle 720 of the other axle are also engaged at a gear ratio of 1: 1, they rotate in the same rotational ratio by interlocking with each other. Done.

The operating principle of the differential set 50 will be described briefly. When the differential housing 510 rotates in conjunction with the rotation of the fourth gear 313, the second rotating shaft is disposed in the differential housing 510. The first and second side gears 530 and 530 respectively engaged with both sides of the pinion gear 520 are rotated while the pinion gear 520 coupled with the 521 is also revolved. Done. At this time, when the resistance applied to the wheels of the axle 710 of one side engaged with the first side gear 530 is increased, the rotational speed of the first side gear 530 is reduced, and the pinion gear 520 rotates accordingly. As the rotational speed of the second side gear 540 and the other axle 720 connected thereto is increased, both axles are differentially rotated, and the other side axle 720 engaged with the second side gear 540 is reversed. If the resistance to the wheel becomes large, the two axles will also be differentially rotated by the opposite mechanism.

The controller 60 controls and drives the second driving device 40 or the first driving device 10 according to the torque or speed required for driving, thereby changing the shape of the gear engaged with the driving shaft according to the driving situation as in the prior art. It is a control device that enables smooth shifting without changing gears, which may be formed of an information processing device such as a CPU capable of performing arithmetic functions. In particular, the control unit 60 to minimize the power consumption by controlling the driving of the two drive devices, respectively or simultaneously so that the electric motor which is a drive device used in the transmission system of the present invention to operate in the highest efficiency section, An operation of shifting the shift system according to the present invention under the control of the controller 60 will be described later in the description of the shift control method.

Hereinafter, a shift process (shift control method) in which a shift is performed without changing a gear in the shift system according to an embodiment of the present invention will be described in detail with reference to FIGS. 6 to 17.

First, the shift process (shift control method) under the shift system according to an embodiment of the present invention includes a driving step (S10) for operating the first drive device 10 to rotate the first gear (20); It may include; a shift step (S70) for controlling the rotation of the gear set 30 by the operation control of the second drive device 40 or the first drive device 10 through the control unit 60.

The driving step (S10) is a step of transmitting the driving force for rotating the first gear 20 by operating the first drive device 10 through the control unit 60, the control unit 60 according to the depth of the accelerator pedal When the electric current is applied to the first driving device 10 by the red signal to rotate the rotor 130 in which the permanent magnet is mounted, the first driving shaft 110 is rotated while the first driving shaft 110 connected to the rotor 130 is rotated. The first gear 20 is engaged with the rotary drive. That is, in the driving step S10, as the first drive shaft 110 of the first driving device 10 rotates as shown in FIG. 7, the first gear 20 connected thereto is counterclockwise (hereinafter, ' ① direction ') and the third gear (312) and the fourth gear (313) in conjunction with the rotation of the first gear (20) under the control of the control unit 60 and the rotation of the first gear (20). Is the same as the third and fourth gear rotation step (S112) to rotate in the ① direction, and the differential device rotation step (S121) in which the differential set 50 is rotated in the ① direction in conjunction with the rotation of the fourth gear (313). ), And the axle connected to the differential set 50 is made in the order of the axle rotation step (S122) in which the axle is rotated in the ① direction. In this process, since the axial direction of the first drive shaft 110 and the rotational center axis direction of the first gear 20 are meshed with each other at right angles, the drive transmission direction is changed at right angles so that the first gear 20 is axle direction. The driving force is transmitted in the same direction as. In addition, as described above, since the number of gear teeth of the first gear 20 is generally 4 to 8 times larger than the number of gear teeth of the first driving shaft 110, the first gear 20 starts to rotate at low speed. On the other hand, high torque can be used to increase the utilization of acceleration and climbing.

The shifting step (S70) is a step of shifting by controlling the rotation of the gear set 30 by operating the second driving device 40 or the first driving device 10 through the control unit 60, a specific example In the second drive device 40 by using the rotation of the second drive shaft 410 of the second drive device 40 connected to the third gear 312 to rotate in the third and fourth gear rotation step (S112). A first shifting step (S711) of increasing power of the fourth gear 313 by generating power; The third and fourth gear rotation step (S112) to increase the rotational speed of the fourth gear 313 by fixing the second drive shaft 410 of the second drive device 40 connected to the third gear 312 Two shifting steps (S712); In the third and fourth gear rotation step (S112) by rotating the second drive shaft 410 of the second drive device 40 connected to the third gear 312 in a direction opposite to the rotation direction of the fourth gear (313) A third shifting step S713 of increasing the rotational speed of the fourth gear 313; The rotation of the first gear 20 by the first driving device 10 is stopped, and the fourth gear 313 is rotated at high speed by the high speed rotation of the third gear 312 by the second driving device 40. A fourth shifting step (S714); By rotating the second drive shaft 410 of the second drive device 40 connected to the third gear 312 in the same direction as the rotation direction of the fourth gear 313 in the third and fourth gear rotation step (S112). And a fifth gear shifting step S715 for reducing the rotational speed of the fourth gear 313.

In the first shifting step S711, the fourth gear is generated by generating power from the second driving device 40 using the rotation of the second driving shaft 410 of the second driving device 40 connected to the third gear 312. In the step of increasing the rotational speed of 313, in the case of the second driving device 40 formed of the electric motor, when the electric current is applied, the rotor rotates to operate as a motor providing driving power and at the same time to the rotating rotor. Since it can operate as a generator that generates electricity from the coil by using the rotation of the permanent magnet attached (for reference, this assumes an electric motor in which permanent magnets and rotors are used. Of course, even if not used, it can be combined with the function of the motor and the generator as a matter of course), using the same principle, the third gear 312 that rotates in the direction ① in the third and fourth gear rotation step (S112) In conjunction with the rotation of When power is generated by the second driving device 40 under the control of the controller 60 by using the rotation of the rotating second driving shaft 410, the second power is proportional to the generation of electrical energy as shown in FIG. 8. The rotational speed of the drive shaft 410 and the third gear 312 in the direction ① decreases, and accordingly, the second gear 311 meshed with the third gear 312 rotates in the direction ③, thereby rotating the fourth gear. The rotation speed in the direction of ① of 313 is increased, so that the differential housing (510), the first and second side gears (530, 540) and the first, second, of the differential device set (50) connected to the fourth gear (313) are increased. The axle 710 on one side and the axle 720 on the other side connected to the second side gears 530 and 540, respectively, are also shifted to increase speed. That is, in the first shifting step S711, the second driving device 40 may generate electricity to accumulate electric energy in a separate battery (not shown), and to smoothly increase the rotation speed of the axle. Will have

The second shifting step S712 is a step of increasing the rotational speed of the fourth gear 313 by fixing the second driving shaft 410 of the second driving device 40 connected to the third gear 312. In the first shifting step S711 described above, the speed of rotation of the fourth gear 313 is increased while the rotation speed of the second drive shaft 410 of the second driving shaft 410 decreases in the direction of? 9, when the rotation of the second drive shaft 410 and the third gear 312 of the second driving device 40 is fixed under the control of the controller 60, the second gear 311 of the second gear 311 is fixed. As the rotation speed in the direction of ③ increases, the rotation speed of the fourth gear 313 in the direction of ① increases further, and eventually the axle 710 of one side and the other side connected to the first and second side gears 530 and 540, respectively. Axle 720 is also made to increase the speed. As a method of fixing the second driving shaft 410 of the second driving device 40, the same concept as that of the principle known as regenerative braking may be used, that is, the second driving shaft 410 under the control of the controller 60. When power is generated in the second driving device 40, which is an electric motor, using the rotation of the motor, the rotational speed of the second driving shaft 410 and the third gear 312 in the direction of ① is proportional to the generation of electrical energy. It slows down and stops (fixes).

The third gear shifting step S713 is performed by rotating the second driving shaft 410 of the second driving device 40 connected to the third gear 312 in a direction opposite to the rotation direction of the fourth gear 313. In step of increasing the rotational speed of 313, the second driving device under the control of the control unit 60 as shown in FIG. 10 further from the first shifting step S711 and the second shifting step S712 described above. When the second drive shaft 410 of the head 40 is rotated in a clockwise direction (hereinafter, referred to as '② direction') opposite to the rotation of the first gear 20 and the fourth gear 313 in the ① direction, the first drive shaft 410 is rotated. As the rotational speed of the second gear 311 in the ③ direction is further increased, the rotational speed of the fourth gear 313 in the ① direction is further increased, and the one side of the one side connected to the first and second side gears 530 and 540 is respectively increased. The axle 710 and the other axle 720 are also shifted to increase speed.

In the fourth shifting step S714, the rotation of the first gear 20 by the first driving device 10 is stopped and the fourth gear 312 is driven by the high speed rotation of the third gear 312 by the second driving device 40. In the step of rotating the gear 313 at a high speed, the size of the third gear 312, that is, the radius of the third gear 312 is smaller than that of the first gear 20, as well as the first driving shaft 110 and the first gear as described above. The gear ratio of 20 is 1: 4 to 1: 8, while the gear ratio of the second driving shaft 410 and the third gear 312 is 1: 1, and the first gear 20 by the first driving shaft 110 is shown. The rotation of the torque is large while the speed is low, and the rotation of the third gear 312 by the second drive shaft 410 is suitable for high speed rotation, where the axle, i.e., the portion where the high speed rotation of the fourth gear 313 is required As shown in FIG. 11, under the control of the controller 60, the third gear 312 by the second drive device 40 instead of the first direction rotation of the first gear 20 by the first drive device 10. The fourth gear 313 in the ① direction using the ② direction high-speed rotation To thereby a high-speed rotation. As the method of stopping and fixing the rotation of the first drive shaft 110 of the first drive device 10, the same concept as the principle known as regenerative braking can be used as described above, that is, under the control of the controller 60, When power is generated in the first driving device 10, which is an electric motor by using the rotation of the first driving shaft 110, the ① direction of the first driving shaft 110 and the first gear 20 is proportional to the generation of electric energy. Rotation speed to slows down and stops (fixes).

The fifth gear shifting step S715 may be performed by rotating the second driving shaft 410 of the second driving device 40 connected to the third gear 312 in the same direction as the rotation direction of the fourth gear 313. A step of reducing the rotational speed of 313, which is to reduce the rotational speed of the third gear 312 that rotates in the ① direction in the third and fourth gear rotation step (S112), or rather to rotate in the ② direction to the fourth gear. Unlike the first to fourth shifting steps of increasing the rotational speed of 313, the control unit 60 controls the rotation of the second drive shaft 410 of the second drive device 40 as shown in FIG. 12. Likewise, by rapidly rotating the second driving shaft 410 in the ① direction, the rotational speed of the third gear 312 is increased in the ① direction, so that the second gear 311 engaged with the third gear 312 is in the ④ direction. Rotating in the direction of the fourth gear 313 in the direction of ① to reduce the speed and eventually to the first and second side gears (530,540) The axle 710 of one side and the axle 720 of the other side connected to each other are also decelerated.

In addition, another example of the shift process (shift control method) under the shift system according to an embodiment of the present invention is a second drive step (S20) for operating the second drive device 40 to rotate the third gear 312 Wow; A shifting step (S70) of controlling the rotation of the gear set 30 or the first gear 20 by operating the second driving device 40 or the first driving device 10 through the control unit 60; It may be made of.

The second driving step S20 is a step of transmitting a driving force for operating the second driving device 40 to rotate the third gear 312, that is, the second driving step S20 is illustrated in FIG. 14. As described above, according to the ② direction drive rotation of the second drive shaft 410 of the second drive device 40, the third gear rotation step S113 in which the third gear 312 is rotated in the ② direction, and the controller 60. A fourth gear rotation step S114 for rotating the fourth gear 313 in the ① direction while the second gear 311 meshed with the rotation of the third gear 312 rotates in the ③ direction under the control of; The differential gear rotation step (S121) in which the differential set 50 is rotated in the direction of (1) in conjunction with the rotation of the fourth gear 313, and the axle connected to the differential set (50) rotates in the direction of (1). The rotation step (S122) is made in order.

In the shifting step S70, the sixth shifting step of reducing the rotational speed of the fourth gear 313 by generating power by switching the second driving device 40 connected to the third gear 312 to a power generation mode ( S716); The first gear 20 connected to the first drive shaft 110 of the first drive device 10 is rotated in a direction opposite to the rotation direction of the fourth gear 313 to reduce the rotation speed of the fourth gear 313. A seventh shift step S717; By rotating the first gear 20 connected to the first drive shaft 110 of the first drive device 10 in the same direction as the rotation direction of the fourth gear 313 to increase the rotational speed of the fourth gear (313) It may be made, including an eighth step (S718).

The sixth shifting step S716 is a step of reducing the rotational speed of the fourth gear 313 by generating power by switching the second driving device 40 connected to the third gear 312 to a power generation mode (in this case, In general, the first drive shaft 110 of the first drive device 10 is fixed), which is generally the same concept as the regenerative braking, the rotation of the second drive shaft 410 under the control of the control unit 60 When the electric power is generated in the second driving device 40, which is an electric motor, in the direction of ② of the second driving shaft 410 and the third gear 312 in proportion to the generation of electrical energy as shown in FIG. The rotational speed of the motor is decelerated, and thus, the rotational speed of ③ of the second gear 311 and the rotational speed of ① of the fourth gear 313 are also decelerated and are eventually connected to the first and second side gears 530 and 540, respectively. The axle 710 on one side and the axle 720 on the other side are also decelerated.

The seventh gear shifting step S717 may be performed by rotating the first gear 20 connected to the first driving shaft 110 of the first driving device 10 in a direction opposite to the rotation direction of the fourth gear 313. In the step of decelerating the rotational speed of the 313, the fourth gear 313 moves in the ① direction according to the ② direction rotation of the second drive shaft 410 and the third gear 312 through the second driving step S20. 16, the controller 60 controls the first driving device 10 to rotate the first gear 20 in the opposite direction to the rotation direction of the fourth gear 313 as shown in FIG. 16. When rotated in the direction of ②, the rotational speed of the fourth gear 313 in the direction of ① decreases, and eventually, the one axle 710 and the other axle 720 connected to the first and second side gears 530 and 540, respectively. A deceleration shift is achieved.

In the eighth shifting step S718, the fourth gear is rotated in the same direction as the rotation direction of the fourth gear 313 by rotating the first gear 20 connected to the first driving shaft 110 of the first driving device 10. In step of increasing the rotation speed of (313), which operates on the principle opposite to the seventh shift step (S717) described above, the fourth gear (313) in the ① direction through the second drive step (S20). As shown in FIG. 17, the controller 60 controls the first driving device 10 to rotate the first gear 20 in the same direction as the rotation direction of the fourth gear 313, that is, as shown in FIG. 17. Rotation speed is increased in the direction of ① of the fourth gear 313 is increased and eventually the axle 710 of one side and the axle 720 of the other side connected to the first and second side gears (530, 540) are also increased. The shift is made.

18 is a cutaway perspective view of a shift system according to another embodiment of the present invention, FIG. 19 is a partially exploded perspective view of the shift system of FIG. 18, FIG. 20 is a cross-sectional view of the shift system of FIG. 18, and FIG. 21 is a view of FIG. 22 is a perspective view showing another example of the gear set of FIG. 18, FIG. 23 is a block diagram showing an example of a shift control method using the shift system of FIG. 18, and FIG. 24 is FIG. 25 is a reference diagram illustrating a ninth shift stage of FIG. 23, FIG. 26 is a reference diagram illustrating the tenth shift stage of FIG. 23, and FIG. 27 is a diagram of FIG. 23 is a reference diagram illustrating the eleventh shift stage of FIG. 23, FIG. 28 is a reference diagram illustrating the twelfth shift stage of FIG. 23, FIG. 29 is a reference diagram illustrating the thirteenth shift stage of FIG. 23, and FIG. 18 is a block diagram illustrating another example of a shift control method using the shift system of FIG. 18, and FIG. 31 is a fourth drive of FIG. 30. 32 is a reference diagram illustrating a fourteenth shift stage of FIG. 30, FIG. 33 is a reference diagram illustrating the fifteenth shift stage of FIG. 30, and FIG. 34 is a sixteenth diagram of FIG. 30. It is a reference figure which shows a shift stage.

18 to 22, the gear shift system according to another embodiment of the present invention is coupled to the gear set 30 by using the third rotation shafts 3311 and 3321 to the first gear 20. A fifth gear 331 and a sixth gear 332 revolving in association with rotation of the first gear 20; And a first center gear 333 and a second center gear 334 which are coupled to the rotation centers of the first gear 20, respectively. The first center gear 333 includes the fifth gear ( 331, the sixth gear 332 meshes with the second center gear 334, and the fifth gear 331 and the sixth gear 332 rotate with each other by interlocking with each other. The device 40 may be connected to the first central gear 333, and the differential set 50 may be configured to be connected to the second central gear 334.

As shown in FIG. 21, the fifth gear 331 uses the third rotation shaft 3311 in a direction parallel to the direction of the rotation center axis of the first gear 20 inside the first gear 20. Eccentrically coupled to the third rotation shaft 3311 can be rotated about the center and at the same time can rotate in conjunction with the rotation of the first gear (20). The gear tooth formed on the outer circumferential surface of the fifth gear is meshed with the first center gear 333 and the sixth gear 332 to be described later, but not with the second center gear 334. Gears should not be formed in the overlapping parts. In addition, the fifth gear 331 may be formed of a pair of gears of the same size positioned to face each other. In this case, the first center gear 333 and the sixth gear 332 to be described later also have a pair of gears. The fifth gear 331, the sixth gear 332, and the first center gear 333 are respectively more tightly coupled to each other by being engaged with the fifth gear 331 at the same time and rotated in precisely interlock with each other.

Like the fifth gear 331, the sixth gear 332 is in a direction parallel to the direction of the center of rotation of the first gear 20 in the first gear 20 as shown in FIG. 21 and the like. Eccentrically coupled using the third rotation shaft (3321) is capable of rotating around the third rotation shaft (3321) while simultaneously rotating in conjunction with the rotation of the first gear (20). The gear tooth formed on the outer circumferential surface of the sixth gear is meshed with the second center gear 334 and the fifth gear 331, which will be described later, but not with the first center gear 333. Gears should not be formed in the overlapping parts. In addition, the sixth gear 332 may also be formed of a pair of gears of the same size positioned to face each other. In this case, the second center gear 334 and the fifth gear 331, which will be described later, also have a pair of gears. The second center gear 334, the sixth gear 332 and the fifth gear 331 are respectively more tightly coupled to the sixth gear 332 by being engaged with the sixth gear 332 at the same time and rotated in exact interlock with each other.

The first center gear 333 is configured to pass through the rotation center portion of the first gear 20, and is engaged with the fifth gear 331 to the outside as shown in FIG. 21. Since the inner side is coupled to the second driving shaft 410 of the second driving device 40, the first gear 20, the first center gear 333 and the second driving shaft 410 is the central axis of rotation Will match. The gear 411 of the second driving shaft 410 is inserted into and engaged with the inner peripheral surface gear 3331 of the first center gear 333 and engaged with each other, and the gear 411 of the second driving shaft 410 is engaged. The number and the number of gears 3331 on the inner circumferential surface of the first center gear 333 are preferably equally 1: 1 to be engaged. Therefore, the second drive shaft 410 to the first center gear 333 or the first Since the driving force is also 1: 1 transmitted from the first center gear 333 to the second drive shaft 410, both have the same rotation speed. In addition, the size of the first center gear 333 is preferably smaller than the first gear 20 is advantageously formed for high speed rotation.

The second center gear 334 is configured to pass through the center of rotation of the first gear 20 so as to face the first center gear 333. As shown in FIG. The first gear 20, the second center gear 334 and the differential set 50 are rotated because they are engaged with the six gears 332 and engaged with the six sets 332. The central axis will coincide. The gear 511 of one side of the differential housing 510 is inserted into and engaged with the inner peripheral surface gear 3331 of the second center gear 334, and both of them have the same number of gear teeth to be engaged 1: 1. It is preferable to form, so that the driving force from the second center gear 334 to the differential set 50 is also transmitted at a ratio of 1: 1 so that both have the same rotation speed.

In addition, the gears formed on the outer circumferential surfaces of the fifth gear 331, the sixth gear 332, the first center gear 333, and the second center gear 334 are helical gears as shown in FIG. 22. It is formed to be inclined to the shaft in the form can be formed to rotate smoothly with each other and less vibration and noise, and can be formed in a variety of other gears with excellent efficiency.

Referring to the operation principle of the gear set 30, when the first gear 20 is rotated in conjunction with the rotation of the first drive shaft 110, the third rotation shaft 3311 on the first gear (20) The fifth gear 331 and the sixth gear 332 coupled using the 3333 may also rotate to rotate the first center gear 333 and the second center gear 334 which are engaged with each other. do. At this time, the second driving shaft 410 of the second driving device is the same as the rotational direction of the first center gear 333 by the operation control of the second driving device 40 engaged with the inside of the first central gear 333. When the rotational speed of the first center gear 333 is doubled by driving in the direction, the fifth gear 331 and the sixth gear 332 rotate in sequence, respectively, and thus the rotation speed of the second center gear 334. In contrast, when the second driving shaft 410 of the second driving device is driven in a direction opposite to the rotation direction of the first center gear 333, the rotation speed of the first center gear 333 is decreased. Accordingly, as the fifth gear 331 and the sixth gear 332 rotate in opposite directions, the rotation speed of the second center gear 334 is doubled. The shift process using this principle will be described later in the description of the shift control method.

Hereinafter, a shift process (shift control method) in which a shift is performed without changing a gear in a shift system according to another embodiment of the present invention will be described in detail with reference to FIGS. 23 to 34.

First, a shift process (shift control method) under a shift system according to another embodiment of the present invention includes a third driving step (S30) for operating the first drive device 10 to rotate the first gear 20; It may include; a shift step (S70) for controlling the rotation of the gear set 30 by the operation control of the second drive device 40 or the first drive device 10 through the control unit 60.

The third driving step S30 is substantially similar to the driving step S10 described above, which transmits a driving force for rotating the first gear 20 by operating the first driving device 10 through the control unit 60. The first gear rotation step of rotating the first gear 20 connected thereto according to the rotation of the first drive shaft 110 of the first drive device 10 as shown in FIG. (S111) and the first and second centers in which the first and second center gears 333 and 334 rotate in the direction ① in association with the rotation of the first gear 20 under the control of the control unit 60. In the gear rotation step (S115) and the differential device rotation step (S121) in which the differential set 50 is rotated in the ① direction in conjunction with the rotation of the second center gear 334, and the differential set (50) The connected axle is made in the order of the axle rotation step (S122) to rotate in the ① direction. In other words, except that the third and fourth gear rotation steps S112 in the driving step S10 are replaced with the first and second center gear rotation steps S115, the rest of the process is the same as in the driving step S10. . In addition, since the number of gear teeth of the first gear 20 is generally 4 to 8 times larger than the number of gear teeth of the first driving shaft 110 as described above, the first gear 20 starts to rotate at low speed. On the other hand, it is the same feature that the high torque can be used to increase the utilization of acceleration and climbing.

In the shifting step S70, for example, rotation of the second driving shaft 410 of the second driving device 40 connected to the first center gear 333 rotating in the first and second center gear rotation step S115. A ninth shifting step (S719) of increasing power of the second center gear 334 by generating power from the second driving device 40 by using; The rotation speed of the second center gear 334 is increased by fixing the second drive shaft 410 of the second driving device 40 connected to the first center gear 333 in the first and second center gear rotation steps S115. A tenth shift step S720 of increasing speed; The second driving shaft 410 of the second driving device 40 connected to the first center gear 333 in the first and second center gear rotation step S115 is opposite to the rotation direction of the second center gear 334. An eleventh shifting step (S721) of increasing the rotational speed of the second center gear 334 by rotating the motor as shown in FIG. The rotation of the first gear 20 by the first driving device 10 is stopped, and the second center gear 334 is rotated at a high speed by the high speed rotation of the first center gear 333 by the second driving device 40. A twelve shifting step (S722) of rotating to a second position; The second driving shaft 410 of the second driving device 40 connected to the first center gear 333 in the first and second center gear rotation step S115 is the same as the rotation direction of the second center gear 334. It may include; and the thirteenth step (S723) for reducing the rotational speed of the second center gear 334 by rotating.

The ninth gear shifting step S719 is performed by generating power in the second driving device 40 by using the rotation of the second driving shaft 410 of the second driving device 40 connected to the first central gear 333. A step of increasing the rotational speed of the center gear 334 is the same principle as the first shifting step S711 described above. That is, the control of the control unit 60 by using the rotation of the second drive shaft 410 in conjunction with the rotation of the first center gear 333 to rotate in the ① direction in the first and second center gear rotation step (S115). When power is generated in the second driving device 40, the rotational speed in the direction ① of the second driving shaft 410 and the first center gear 333 is proportional to the generation of electrical energy as shown in FIG. Therefore, the fifth gear 331 meshed with the first center gear 333 rotates in the direction of ① and the sixth gear 332 meshed with the fifth gear 331 rotates in the direction of ②. As the rotation speed in the direction of ① of the second center gear 334 is increased, the shift is made. That is, in the ninth shifting step, as in the first shifting step S711, the second driving device 40 may generate electricity to accumulate electrical energy in a separate battery (not shown), and the axle It will have a feature to smoothly increase the speed of rotation.

The tenth shift step S720 may be performed by fixing the second driving shaft 410 of the second driving device 40 connected to the first center gear 333 in the first and second center gear rotation steps S115. A step of increasing the rotational speed of the center gear 334 is the same principle as the second shifting step S712 described above. That is, the rotation speed of the second center gear 334 is increased while the rotation speed of the second driving shaft 410 of the second driving device 40 in the ① direction is decreased in the ninth shifting step S719. Furthermore, when the rotation of the second drive shaft 410 and the first center gear 333 of the second driving device 40 is fixed under the control of the control unit 60 as shown in FIG. As the rotational speed of the fifth gear 331 in the direction of ① and the rotational speed of the sixth gear 332 in the direction of ② are increased, the rotational speed of the second center gear 334 in the direction of ① is further increased and the shift is made. You lose.

In the eleventh shifting step S721, the second driving shaft 410 of the second driving device 40 connected to the first center gear 333 is rotated in the first and second center gear rotation steps S115. A step of increasing the rotational speed of the second center gear 334 by rotating in the direction opposite to the rotational direction of 334 is the same principle as the third shifting step S713 described above. That is, the second drive shaft 410 of the second driving device 40 under the control of the control unit 60 as shown in FIG. 27 further from the ninth shift step S719 and the tenth shift step S720 described above. When the first gear 20 and the second center gear 334 is rotated in the direction ②, which is opposite to the rotation in the direction ①, the rotation of the fifth gear 331 in the direction ① and the sixth gear ( As the rotation speed in the direction of ② of 332 is further increased, the rotation speed of the second center gear 334 in the direction of ① is further increased and shift is made.

The twelfth shifting step S722 is performed by stopping the rotation of the first gear 20 by the first driving device 10 and by rotating the first center gear 333 by the second driving device 40 at a high speed. The second center gear 334 is rotated at high speed, which is the same principle as that of the fourth shifting step S714 described above. That is, the size of the first center gear 333 is smaller than that of the first gear 20, and the gear ratio of the first driving shaft 110 and the first gear 20 is 1: 4 to 1: 8, whereas Since the gear ratio of the second driving shaft 410 and the first center gear 333 is 1: 1, the rotation of the first gear 20 by the first driving shaft 110 has a high torque while having a low speed and a second driving shaft ( Rotation of the first center gear 333 by the 410 is suitable for high speed rotation, the control portion of the control unit 60 as shown in FIG. 28 in a portion that requires high speed rotation of the axle, that is, the second center gear 334. Instead of rotating the first gear 20 in the first gear 20 by the first driving device 10, the second center gear is made using the high speed rotation of the first center gear 333 by the second driving device 40. 334 is rotated at a high speed in the ① direction.

In the thirteenth shifting step S723, the second driving shaft 410 of the second driving device 40 connected to the first center gear 333 in the first and second center gear rotation steps S115 may be a second center gear. The rotation speed of the second center gear 334 is reduced by rotating in the same direction as the rotation direction of 334, which is the same principle as the fifth shifting step S715 described above. That is, it decelerates the rotational speed of the first central gear 333 which rotates in the ① direction in the first and second center gear rotation step (S115) or rather in the ② direction to increase the rotational speed of the second gear 311. Unlike the ninth to twelve shifting steps, the control unit 60 controls the rotation of the second driving shaft 410 of the second driving device 40, rather than the second driving shaft 410 as shown in FIG. When the rotational speed of the first center gear 333 is increased in the ① direction by rapidly rotating in the direction ①, the fifth gear 331 rotates in the direction ② and the sixth gear meshed with the fifth gear 331. Reference numeral 332 sequentially rotates in the ① direction, whereby the rotational speed of the second center gear 334 in the ① direction is decelerated and the shift is made.

In addition, another example of the shift process (shift control method) under the shift system according to another embodiment of the present invention is a fourth driving step (S40) for operating the second drive device 40 to rotate the first center gear (333) )Wow; A shifting step (S70) of controlling the rotation of the gear set 30 or the first gear 20 by operating the second driving device 40 or the first driving device 10 through the control unit 60; It may be made of.

The fourth driving step S40 is a step of transmitting a driving force for rotating the first central gear 333 by operating the second driving device 40, that is, the fourth driving step S40 is illustrated in FIG. 31. As described above, according to the ② direction drive rotation of the second drive shaft 410 of the second driving device 40, the first center gear 333 connected thereto is rotated in the ② direction, and the control unit (S116). Under the control of 60, the second center gear 334 is rotated by interlocking with the rotation of the first center gear 333 through the ① direction rotation of the fifth gear 331 and the ② direction rotation of the sixth gear 332. A second center gear rotating step (S117) for rotating in the ① direction, a differential device rotating step (S121) for the differential device set 50 to rotate in the ① direction in conjunction with the rotation of the second center gear 334, The axle connected to the differential set 50 is made in the axle rotation step (S122) in which the axle is rotated in the ① direction.

In the shifting step (S70), the 14th shift that decelerates the rotational speed of the second center gear 334 by generating power by switching the second driving device 40 connected to the first center gear 333 to a power generation mode. Step S724; The first gear 20 connected to the first drive shaft 110 of the first drive device 10 is rotated in a direction opposite to the rotation direction of the second center gear 334 to increase the rotation speed of the second center gear 334. A fifteenth shift step S725 for decelerating; The first gear 20 connected to the first drive shaft 110 of the first drive device 10 is rotated in the same direction as that of the second center gear 334 to increase the rotation speed of the second center gear 334. It may be made, including; a sixteenth speed change step (S726) to increase.

The fourteenth shifting step (S724) is to reduce the rotational speed of the second center gear 334 by generating power by switching the second driving device 40 connected to the first center gear 333 to a power generation mode. The same principle as the sixth shift step S716 described above. That is, when power is generated by the second driving device 40 which is an electric motor by using the rotation of the second driving shaft 410 under the control of the control unit 60, as shown in FIG. 32, the electrical energy is generated. Therefore, the rotational speed of the second drive shaft 410 and the first center gear 333 in the direction ② decreases, and accordingly, the direction 1 rotation of the fifth gear 331 and the direction 2 rotation of the sixth gear 332 are reduced. The speed is decelerated, and as a result, the ① direction rotational speed of the second center gear 334 is also decelerated and the shift is made.

In the fifteenth shift step S725, the first gear 20 connected to the first driving shaft 110 of the first driving device 10 is rotated in a direction opposite to the rotation direction of the second central gear 334. A step of reducing the rotational speed of the center gear 334 is the same principle as the seventh shift step S717 described above. That is, in the state in which the second center gear 334 rotates in the ① direction according to the ② direction rotation of the second drive shaft 410 and the first center gear 333 through the fourth driving step S40, FIG. As shown in FIG. 33, the first drive device 10 is controlled under the control of the controller 60 to rotate the first gear 20 in a direction opposite to the rotation direction of the second center gear 334. When the rotational speed in the ① direction of the second center gear 334 is decelerated and the shift is made.

In the sixteenth shifting step S726, the first gear 20 connected to the first driving shaft 110 of the first driving device 10 is rotated in the same direction as the rotation direction of the second central gear 334, thereby causing the second gear. A step of increasing the rotational speed of the center gear 334 is the same principle as that of the eighth shifting step S718 described above. That is, this is operated on the principle opposite to the above-described fifteenth shift step S725, and is shown in FIG. 34 in a state in which the second center gear 334 rotates in the ① direction through the fourth driving step S40. As described above, when the first gear 20 is rotated under the control of the control unit 60 to rotate the first gear 20 in the same direction as the rotation direction of the second center gear 334, that is, in the direction of ①, the second gear is rotated. The rotation speed in the direction ① of the center gear 334 is increased and the shift is made.

35 is a cutaway perspective view of a shift system according to still another embodiment of the present invention, FIG. 36 is a partially exploded perspective view of the shift system of FIG. 35, FIG. 37 is a cross-sectional view of the shift system of FIG. 35, and FIG. 38 is FIG. 35. Fig. 39 is a block diagram showing an example of a shift control method using the shifting system of Fig. 35, Fig. 40 is a reference diagram showing the fifth driving step of Fig. 39, and Fig. 41 is Fig. 41. 39 is a reference diagram showing the seventeenth shift step, FIG. 42 is a reference diagram showing the eighteenth shift step of FIG. 39, FIG. 43 is a reference diagram showing the nineteenth shift step of FIG. 39, and FIG. 39 is a reference diagram illustrating the 20th shift stage of FIG. 39, FIG. 45 is a reference diagram illustrating the 21st shift stage of FIG. 39, and FIG. 46 illustrates another example of a shift control method using the shift system of FIG. 35. 47 is a reference diagram showing the sixth driving step of FIG. 46, and FIG. 48 is the twenty-second shift stage of FIG. The one shown is a reference diagram, 49 is a reference showing the twenty-third speed change step in Fig. 46 and Fig. 50 is a reference showing the step of claim 24 the shift of 46 degrees.

35 to 38, in the shift system according to another exemplary embodiment of the present invention, the gear set 30 may be coupled to the first gear 20 using fourth rotation shafts 3511 and 3351 to rotate. A ninth gear 351 and a tenth gear 352 revolving in conjunction with rotation of the first gear 20; And a third center gear 353 and a fourth center gear 354 which are respectively coupled to the rotation centers of the first gear 20, and the third center gear 353 includes the ninth gear ( 351, the tenth gear 352 meshes with the fourth central gear 354, and the ninth gear 351 and the tenth gear 352 rotate with each other to rotate the second driving device. 40 may be connected to the third central gear 353, and the differential set 50 may be formed to be connected to the fourth central gear 354.

As shown in FIG. 38, the ninth gear 351 is arranged in the fourth gear in a direction crossing the first gear 20 in a direction parallel to the rotation center axis direction of the first gear 20 at an angle of 90 degrees. Combination using the coaxial 3511 is possible to rotate around the fourth rotating shaft (3511) and at the same time can rotate in conjunction with the rotation of the first gear (20). The gear tooth formed on the outer circumferential surface of the ninth gear 351 is formed in the center of the spiral gear portion 3512 formed in the form of a spiral gear so as to rotate in engagement with the third center gear 353 to be described later. A spur gear portion 3513 formed in the form of a spur gear may be formed at one end so as to be engaged with the tenth gear 352 to rotate in conjunction with the tenth gear 352. That is, the spiral gear portion 3512 formed at the center of the ninth gear 351 may rotate in engagement with a spiral gear and a worm gear formed on the outer circumferential surface of the third center gear 353 to be described later (see FIG. 38). It is formed in the form of a spiral gear, and the spur gear portion 3513 formed on one end (preferably both side ends) of the ninth gear 351 is interlocked with the tenth gear 352 to be described later to be parallel to each other. It is formed in the form of a spur gear so that it can rotate, its operation relationship will be described later. In addition, a plurality of ninth gears 351 may be formed along the inner circumferential surface of the first gear 20 (preferably three in a triangular shape), in which case the third center gear 353 to be described later. Is more tightly coupled to the plurality of ninth gears 351 around the outer circumferential surface and rotates in precise linkage with each other.

Like the ninth gear 351, the tenth gear 352 is at an angle of 90 degrees to the direction of the center of rotation of the first gear 20 inside the first gear 20, as shown in FIG. By using the fourth rotation shaft (3521) in the direction to cross in parallel, it is possible to rotate around the fourth rotation shaft (3521) and at the same time can rotate in conjunction with the rotation of the first gear (20). The gear tooth formed on the outer circumferential surface of the tenth gear 352 is formed in the center of the spiral gear portion 3352 formed in the form of a spiral gear to rotate in engagement with the fourth center gear 354 to be described later. A spur gear portion 3523 formed in the form of a spur gear may be formed at one end so as to be engaged with the 9 gear 351 to rotate in interlocked fashion. That is, the spiral gear portion 3352 formed at the center of the tenth gear 352 may rotate in engagement with a spiral gear and a worm gear formed on the outer circumferential surface of the fourth center gear 354 to be described later (see FIG. 38). The spur gear portion 3523 formed at one end (preferably at both side ends) of the tenth gear 352 is formed in a spiral gear shape so that the spur gear portion of the ninth gear 351 is located in parallel with each other. It is formed in the form of a spur gear to rotate in interlocking engagement with (3513), its operation relationship will be described later. In addition, like the ninth gear 351, the tenth gear 352 may also be formed along the inner circumferential surface of the first gear 20 (preferably three in the form of a triangle), in this case The fourth center gear 354 to be described later is more tightly coupled with the plurality of tenth gears 352 along the outer circumference and rotates in precise linkage with each other.

The third center gear 353 is configured to penetrate through the rotation center of the first gear 20, and as shown in FIG. 38, the third gear 351 (more specifically, a spiral). Gear tooth part 3512 is engaged with the gear tooth part 3512 (therefore, a spiral gear tooth is formed), and the first gear 20 is engaged with the second drive shaft 410 of the second driving device 40 inwardly. ), The third center gear 353 and the second driving shaft 410 coincide with the central axis of rotation. The gear 411 of the second driving shaft 410 is inserted into and engaged with the inner circumferential surface gear 3531 of the third central gear 353, and engaged with the gear 411 of the second driving shaft 410. The number and the number of gears 3531 of the inner circumferential surface of the third center gear 353 are preferably equally 1: 1 to be engaged. Therefore, the second drive shaft 410 to the third center gear 353 or third Since the driving force is also transmitted 1: 1 to the second drive shaft 410 from the three-center gear 353, both have the same rotation speed. In addition, it is preferable that the size of the third center gear 353 is smaller than the first gear 20 so as to be advantageous for high speed rotation.

The fourth center gear 354 is configured to pass through the rotation center of the first gear 20 so as to face the third center gear 353. 10 gear 352 (more specifically spiral gear portion 3352) is engaged with (to form a spiral gear tooth is formed), and the inner side is coupled to the differential set 50, so that the first The gear 20, the fourth center gear 354, and the differential set 50 are coincident with the central axis of rotation. The gear 511 of one side of the differential housing 510 is inserted into and engaged with the inner peripheral surface gear 3551 of the fourth center gear 354, and both of them have the same number of gear teeth to be engaged 1: 1. It is preferable to form, so that the driving force from the fourth center gear 354 to the differential set 50 is also transmitted at a ratio of 1: 1 so that both have the same rotation speed.

Referring to the operation principle of the gear set 30, when the first gear 20 is rotated in conjunction with the rotation of the first drive shaft 110, the fourth rotation shaft (3511) in the first gear (20) The 9th gear 351 and the 10th gear 352 coupled by using the 3352 may also rotate to rotate the third center gear 353 and the fourth center gear 354 which are engaged with each other. do. At this time, the second driving shaft 410 of the second driving device is the same as the rotational direction of the third center gear 353 by the operation control of the second driving device 40 which is engaged inside the third center gear 353. When the rotational speed of the third center gear 353 is doubled in the direction of rotation, the ninth gear 351 rotates accordingly, and the tenth gear 352 rotates in sequence so that the fourth center gear ( The rotational speed of the 354 is reduced, and on the contrary, the second driving shaft 410 of the second driving device is driven in a direction opposite to the rotational direction of the third central gear 353, so that the rotational speed of the third central gear 353 is increased. In the case of being reduced, the rotation speed of the fourth center gear 354 is doubled as the ninth gear 351 and the tenth gear 352 linked thereto rotate in opposite directions. The shift process using this principle will be described later in the description of the shift control method.

Hereinafter, a shift process (shift control method) in which a shift is performed without changing a gear under a shift system according to another embodiment of the present invention will be described in detail with reference to FIGS. 39 to 50.

First, the shift process (shift control method) under the shift system according to another embodiment of the present invention includes a fifth driving step (S50) for operating the first drive device 10 to rotate the first gear (20); It may include; a shift step (S70) for controlling the rotation of the gear set 30 by the operation control of the second drive device 40 or the first drive device 10 through the control unit 60.

The fifth driving step S50 is substantially similar to the driving step S10 described above, which transmits a driving force for rotating the first gear 20 by operating the first driving device 10 through the control unit 60. As shown in FIG. 40, the first gear rotating step of rotating the first gear 20 connected thereto according to the rotation of the first driving shaft 110 of the first driving device 10 in the direction of ① as shown in FIG. 40. (S111) and the third center gear 353 engaged with rotation of the ninth gear 351 and the tenth gear 352 in conjunction with the rotation of the first gear 20 under the control of the controller 60, and The third and fourth center gear rotating steps S118 for rotating the fourth center gear 354 in the ① direction, and the differential set 50 rotates in the direction ① in conjunction with the rotation of the fourth center gear 354. In order of the differential device rotation step (S121), and the axle connected to the differential device set 50, the axle rotation step (S122) is rotated in the ① direction It becomes luer. In other words, except that the third and fourth gear rotation step S112 in the driving step S10 is replaced with the third and fourth center gear rotation step S118, the rest of the process is performed in the driving step S10. same. In addition, since the number of gear teeth of the first gear 20 is generally 4 to 8 times larger than the number of gear teeth of the first driving shaft 110 as described above, the first gear 20 starts to rotate at low speed. On the other hand, it is the same feature that the high torque can be used to increase the utilization of acceleration and climbing.

In the shifting step S70, for example, rotation of the second driving shaft 410 of the second driving device 40 connected to the third center gear 353 rotating in the third and fourth center gear rotating steps S118. A seventeenth shifting step of increasing power of the fourth center gear 354 by generating power from the second driving device 40 using the seventeenth shifting step S727; The rotation speed of the fourth center gear 354 is increased by fixing the second drive shaft 410 of the second driving device 40 connected to the third center gear 353 in the third and fourth center gear rotation steps S118. An eighteenth shifting step (S728) of increasing speed; The second drive shaft 410 of the second driving device 40 connected to the third center gear 353 in the third and fourth center gear rotation step S118 is opposite to the rotation direction of the fourth center gear 354. A nineteenth shifting step (S729) of increasing the rotational speed of the fourth central gear 354 by rotating the motor as shown in FIG. The rotation of the first gear 20 by the first driving device 10 is stopped, and the fourth center gear 354 is rotated at high speed by the high speed rotation of the third center gear 353 by the second driving device 40. A 20th speed changing step (S730) to rotate the wheel; The second drive shaft 410 of the second driving device 40 connected to the third center gear 353 in the third and fourth center gear rotation step S118 is the same as the rotation direction of the fourth center gear 354. And a twenty-first shifting step (S731) of slowing down the rotational speed of the fourth central gear 354 by rotating it.

In the seventeenth shifting step S727, power is generated by the second driving device 40 using the rotation of the second driving shaft 410 of the second driving device 40 connected to the third central gear 353. A step of increasing the rotational speed of the center gear 354 is the same principle as the first shifting step S711 described above. That is, the control of the control unit 60 by using the rotation of the second drive shaft 410 in conjunction with the rotation of the third center gear 353 that rotates in the ① direction in the third, fourth center gear rotation step (S118). When power is generated in the second driving device 40, the rotational speed of the second driving shaft 410 and the third center gear 353 in the direction of ① is proportional to the generation of electrical energy as shown in FIG. Is slowed down, so that the ninth gear 351 engaged with the outer circumferential surface of the third center gear 353 is in the ③ direction, and the tenth gear (30) meshed in parallel with the ninth gear 351 by the spur gear unit. 352 is rotated in the direction ④, the rotation speed of the fourth center gear 354 in the ① direction is increased by the rotation of the tenth gear 352, and the shift is made. That is, in the seventeenth shifting step, as in the first shifting step S711, the second driving device 40 may generate electricity to accumulate electrical energy in a separate battery (not shown), and the axle It will have a feature to smoothly increase the speed of rotation.

The eighteenth shifting step S728 may be performed by fixing the second driving shaft 410 of the second driving device 40 connected to the third center gear 353 in the third and fourth center gear rotation step S118. A step of increasing the rotational speed of the center gear 354 is the same principle as the second shifting step S712 described above. That is, in the above seventeenth shifting step S727, the rotation speed of the fourth center gear 354 is increased while the rotation speed of the second driving shaft 410 of the second driving device 40 decreases in the direction of? Furthermore, when the rotation of the second drive shaft 410 and the third center gear 353 of the second driving device 40 is fixed under the control of the control unit 60 as shown in FIG. As the rotational speed of the 9th gear 351 in the direction of ③ and the rotational speed of the 10th gear in the direction of ④ are increased, the rotational speed of the fourth center gear 354 in the direction of ① is further increased and shifts are made.

In the 19th shifting step S729, the second driving shaft 410 of the second driving device 40 connected to the third center gear 353 is rotated in the third and fourth center gear rotation step S118. The rotation speed of the fourth center gear 354 is increased by rotating in the opposite direction to the rotation direction of the 354, which is the same principle as the third shifting step S713 described above. That is, the second driving shaft 410 of the second driving device 40 under the control of the control unit 60 as shown in FIG. 43 further from the seventeenth shift step S727 and the eighteenth shift step S728 described above. When the first gear 20 and the fourth center gear 354 is rotated in the ② direction opposite to the rotation in the ① direction, the rotation of the ninth gear 351 in the ③ direction and the As the rotational speed in the ④ direction is further increased, the rotational speed in the ① direction of the fourth center gear 354 is further increased and the shift is made.

In the twentieth shifting step S722, the rotation of the first gear 20 by the first driving device 10 is stopped and the high speed rotation of the third center gear 353 by the second driving device 40 is performed. The fourth center gear 354 is rotated at a high speed, which is the same principle as that of the fourth shifting step S714 described above. That is, the size of the third center gear 353 is smaller than that of the first gear 20, and the gear ratio of the first driving shaft 110 and the first gear 20 is preferably 1: 4 to 1: 8. On the other hand, since the gear ratio of the second driving shaft 410 and the third center gear 353 is 1: 1, the rotation of the first gear 20 by the first driving shaft 110 has a high torque while having a low speed, and a second The rotation of the third center gear 353 by the drive shaft 410 is suitable for high speed rotation. In the portion requiring high speed rotation of the axle, that is, the fourth center gear 354, the controller 60 is shown in FIG. 44. Control the first gear 20 by the first drive device 10 under the control of the " 4 " The center gear 354 is rotated at high speed in the ① direction.

In the twenty-first shifting step (S723), the second driving shaft (410) of the second driving device (40) connected to the third center gear (353) is rotated in the third and fourth center gear rotation steps (S118). The rotation speed of the fourth central gear 354 is reduced by rotating in the same direction as the rotation direction of 354, which is the same principle as the fifth shifting step S715 described above. In other words, it reduces the rotational speed of the third center gear 353 which rotates in the ① direction in the third and fourth center gear rotation step S118, or rather, rotates it in the ② direction to increase the rotation speed of the fourth center gear 354. Unlike the 17 th to 20 th shifting steps, the controller 60 controls the rotation of the second drive shaft 410 of the second drive device 40 to increase the second drive shaft 410 as shown in FIG. 45. Rather, when the rotational speed of the third center gear 353 is increased in the direction of ① by rapidly rotating in the direction ①, the ninth gear 351 engaged with the outer circumferential surface of the third center gear 353 is in the direction ④, The tenth gear 352 meshed with the ninth gear 351 in parallel by the spur gear portion rotates in the direction ③, and the tenth gear 354 rotates in the direction of the fourth gear 354. ① The speed of rotation in the direction is decelerated and shift is made.

In addition, another example of the shift process (shift control method) under the shift system according to another embodiment of the present invention is the sixth driving step of operating the second drive device 40 to rotate the third center gear (353) ( S60); A shifting step (S70) of controlling the rotation of the gear set 30 or the first gear 20 by operating the second driving device 40 or the first driving device 10 through the control unit 60; It may be made of.

The sixth driving step S60 is a step of transmitting a driving force for rotating the third central gear 353 by operating the second driving device 40, that is, the sixth driving step S60 is illustrated in FIG. 47. As described above, according to the ② direction drive rotation of the second drive shaft 410 of the second drive device 40, the third center gear 353 connected thereto is rotated in the ② direction, and the control unit (S119). ④ rotation of the ninth gear 351 linked to rotation of the third center gear 353 and ④ of the tenth gear 352 linked to the ninth gear 351 under the control of 60. The fourth center gear rotating step (S120) for rotating the fourth center gear 354 in the ① direction through the differential gear set 50 is rotated in the ① direction in conjunction with the rotation of the fourth center gear 354. The differential device rotation step (S121), and the axle connected to the differential device set 50 is made in the order of the axle rotation step (S122) to rotate in the ① direction.

In the shifting step (S70), the 22nd shift that decelerates the rotational speed of the fourth center gear 354 by generating power by switching the second driving device 40 connected to the third center gear 353 to the power generation mode. Step S732; The first gear 20 connected to the first drive shaft 110 of the first drive device 10 is rotated in a direction opposite to the rotation direction of the fourth center gear 354 to increase the rotation speed of the fourth center gear 354. A twenty third shift step S733 for decelerating; The first gear 20 connected to the first drive shaft 110 of the first drive device 10 is rotated in the same direction as that of the fourth center gear 354 to increase the rotation speed of the fourth center gear 354. And a 24 th speed shift step S734 of increasing speed.

The twenty-second shifting step S732 is a step of reducing the rotational speed of the fourth center gear 354 by generating power by switching the second driving device 40 connected to the third center gear 353 to a power generation mode. The same principle as the sixth shift step S716 described above. That is, when power is generated in the second driving device 40 which is an electric motor by using the rotation of the second driving shaft 410 under the control of the control unit 60 (the same principle as the regenerative braking), as shown in FIG. 48. As described above, the rotational speed of the second driving shaft 410 and the third center gear 353 in the direction of ② decreases in proportion to the generation of the electric energy, and accordingly, the second driving shaft 410 and the third center gear 353 are linked to the rotation of the third center gear 353. Rotational speed ④ of the 9th gear 351 and rotational direction ④ of the 10th gear 352 linked to the ninth gear 351 are decelerated. And shifts are made.

In the twenty-third step S733, the first gear 20 connected to the first driving shaft 110 of the first driving device 10 is rotated in a direction opposite to the rotational direction of the fourth central gear 354. A step of reducing the rotational speed of the center gear 354 is the same principle as the seventh shift step S717 described above. That is, in the state in which the fourth center gear 354 rotates in the ① direction according to the ② direction rotation of the second drive shaft 410 and the third center gear 353 through the sixth driving step S60, FIG. As shown in FIG. 49, under the control of the controller 60, the first drive device 10 is controlled to rotate the first gear 20 in a direction opposite to the direction of rotation of the fourth central gear 354. If the rotational speed in the ① direction of the fourth center gear 354 is decelerated and the shift is made.

In the twenty-fourth shifting step S734, the first gear 20 connected to the first driving shaft 110 of the first driving device 10 is rotated in the same direction as the rotation direction of the fourth central gear 354, thereby transmitting the fourth gear. A step of increasing the rotational speed of the center gear 354 is the same principle as in the eighth shifting step S718 described above. That is, it operates on the principle opposite to the twenty-third shifting step S733 described above, and is shown in FIG. 50 while the fourth center gear 354 rotates in the ① direction through the sixth driving step S60. As described above, when the first gear 20 is rotated under the control of the controller 60 to rotate the first gear 20 in the same direction as the rotation direction of the fourth central gear 354, that is, in the direction of ①, the fourth gear is controlled. The rotational speed in the direction ① of the center gear 354 is increased and the shift is made.

As described above, the shift system and the shift control method using the same according to the present invention, in particular through the operation control of the drive device in the electric or hybrid vehicle, the transmission gear having a multi-stage structure as in the prior art according to the driving characteristics Away from the structure to be changed gears, it is characterized in that the shift is possible without changing gears to change the shape of the gear meshing with the drive shaft during driving. Therefore, it is possible to change gears without changing gears, thereby preventing shifting shocks and fuel economy reduction in the process of changing gears, and as described above, the gear set of the gear shifting system has a simple structure. By reducing the volume, the vehicle can be made smaller and lighter, and the durability can be increased to reduce maintenance costs and improve fuel efficiency. In addition, since it is possible to produce electric energy through the development of the electric motor in the shifting process as described above, it is also effective to increase the energy efficiency by storing and using it in a separate battery (not shown).

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, Should be interpreted as belonging to the scope.

10: first drive device 110: first drive shaft 111: gear of the first drive shaft
20: first gear
30: gear set
311: second gear 3111: rotating shaft
312: Third Gear 3121: Inner Peripheral Gear of Third Gear
313: fourth gear 3131: inner circumference gear of fourth gear
331: 5th gear 332: 6th gear 3311,3321: 3rd coaxial
333: first center gear 3331: inner circumference gear of the first center gear
334: second center gear 3341: inner circumference gear of the second center gear
351: 9th Gear 3511: 4th Coaxial 3512: Spiral Gear 3513: Spur Gear
352: 10th gear 3521: 4th coaxial 3522: spiral gear part 3523: spur gear part
353: 3rd center gear 3531: inner peripheral surface gear of 3rd center gear
354: 4th center gear 3541: inner peripheral surface gear of 4th center gear
40: second driving device
410: second drive shaft 411: gear of the second drive shaft
420: stator 430: rotor
50: differential set
510: differential housing 511: gear on one side of the differential housing
520: pinion gear 521: second coaxial
530: first side gear 540: second side gear
60: control unit
710: one axle 720: the other axle

Claims (46)

A first gear connected to the first driving device and rotating;
A gear set connected to the first gear and rotating or rotating;
A second driving device connected to one side of the gear set and operating;
And a control unit for controlling the second driving device or the first driving device according to the torque, and the shifting system can be performed without changing gears through the operation control of the first driving device or the second driving device. The method of claim 1, wherein the shift system
A second gear coupled to the first gear using a rotation shaft to rotate while being revolved in rotation with the rotation of the first gear; A third gear which is coupled to one side of the second gear and rotates in conjunction with a revolution or rotation of the second gear; And a fourth gear coupled to the other side of the second gear so as to face the third gear to rotate in conjunction with a revolution or rotation of the second gear.
And the second driving device is connected to the third gear. The method of claim 2, wherein the shift system
And the third gear connected to the second driving device has a smaller radius than the first gear connected to the first driving device. The method of claim 3, wherein
The first gear is formed with the same or greater number of gear teeth than the first drive shaft gear teeth of the first driving device engaged with,
And the third gear is formed with the same number of gear teeth as the second drive shaft gear teeth of the second driving device engaged with. The apparatus of claim 4 wherein the gearset is
The second gear is formed of a pair of gears of the same size positioned opposite to each other,
And the third gear and the fourth gear, which face each other, are simultaneously coupled to a pair of second gears. The method of claim 2,
The shifting system further comprises a differential set operating in connection with the other side of the gear set,
The differential set includes a pair of pinion gears that rotate in synchronization with the rotation of the differential housings in the differential housing, a first side gear that simultaneously rotates in conjunction with one of the pair of pinion gears, and the one; A second side gear coupled to the other side of the pair of pinion gears so as to be opposed to the first side gear and rotate in linkage;
One axle is coupled to the first side gear through the center of the second driving device, the third gear and the fourth gear to rotate in conjunction with the rotation of the first side gear,
The other axle is coupled to the second side gear shift system, characterized in that to rotate in conjunction with the rotation of the second side gear. The method of claim 1, wherein the shift system
A fifth gear and a sixth gear that are coupled to the first gear by using a third rotational shaft to rotate while being revolved in rotation with the rotation of the first gear; And a first center gear and a second center gear which are respectively coupled to the rotation centers of the first gear so as to face each other.
The fifth gear is engaged with the first center gear, and the sixth gear is engaged with the second center gear, respectively, and the fifth gear and the sixth gear are engaged with each other to rotate.
And the second driving device is connected to the first center gear. The method of claim 7, wherein the shift system
And the fifth gear, the sixth gear, the first center gear, and the second center gear are inclined to the shaft in the form of a helical gear, respectively, so that the gears rotate in engagement with each other. The method of claim 7, wherein the shift system
And the first central gear connected to the second driving device has a smaller radius than the first gear connected to the first driving device. The method of claim 9,
The first gear is formed with the same or greater number of gear teeth than the first drive shaft gear teeth of the first driving device engaged with,
And said first center gear has the same number of gear teeth as the second drive shaft gear teeth of said second drive device. The method of claim 1, wherein the shift system
A ninth gear and a tenth gear, wherein the gear set is coupled to the first gear by using a fourth rotational shaft and is capable of rotating while revolving in conjunction with rotation of the first gear; And a third center gear and a fourth center gear which are respectively coupled to the rotation centers of the first gear so as to face each other.
The ninth gear is engaged with the third center gear, the tenth gear is engaged with the fourth center gear, and the ninth gear and the tenth gear are engaged with each other to rotate.
And the second driving device is connected to the third center gear. The method of claim 11, wherein the shift system
The third center gear, the ninth gear, the fourth center gear and the tenth gear are engaged with each other in a worm gear shape so that the rotational center axis intersects, and the ninth gear and the tenth gear are positioned in parallel with each other so that one side thereof is mutually parallel. Shifting system characterized in that the rotation is engaged. The method of claim 12, wherein the shift system
And the third central gear connected to the second driving device has a smaller radius than the first gear connected to the first driving device. The method of claim 13,
The first gear is formed with the same or greater number of gear teeth than the first drive shaft gear teeth of the first driving device engaged with,
And the third center gear has the same number of gear teeth as the second drive shaft gear teeth engaged with the second driving device. In the shift control method using the shift system according to any one of claims 1 to 6,
A driving step of rotating the first gear by operating the first driving device;
And a gear shifting step of controlling the rotation of the gear set by operating the second driving device or the first driving device through a control unit.
Shift control method characterized in that the shift is possible without changing the gear through the operation control of the second drive device or the first drive device. The method of claim 15, wherein the driving step
A first gear rotating step of rotating the first gear connected to the first driving shaft of the first driving device;
A third and fourth gear rotation step of rotating a third gear and a fourth gear in association with rotation of the first gear;
A differential device rotating step of rotating the differential device in association with the rotation of the fourth gear;
And an axle rotation step of rotating the axle connected to the differential set. The method of claim 16, wherein the shifting step
The first gear shifting speed increases the rotational speed of the fourth gear by generating power in the second driving device by using the rotation of the second driving shaft of the second driving device connected to the third gear rotating in the third and fourth gear rotating steps. Shift control method comprising the step. The method of claim 16, wherein the shifting step
And a second shifting step of increasing the rotational speed of the fourth gear by fixing the second driving shaft of the second driving device connected to the third gear in the third and fourth gear rotating steps. The method of claim 16, wherein the shifting step
In the third and fourth gear rotation step, by rotating the second drive shaft of the second drive device connected to the third gear in a direction opposite to the rotation direction of the fourth gear, a third speed change step of increasing the rotational speed of the fourth gear Shift control method comprising a. The method of claim 19, wherein the shifting step
And a fourth shifting step of stopping the rotation of the first gear by the first driving device and rotating the fourth gear at high speed by the high speed rotation of the third gear by the second driving device. . The method of claim 16, wherein the shifting step
In the third and fourth gear rotation step, by rotating the second drive shaft of the second drive device connected to the third gear in the same direction as the rotation direction of the fourth gear, a fifth speed change step of reducing the rotational speed of the fourth gear Shift control method comprising a. In the shift control method using the shift system according to any one of claims 1 to 6,
A second driving step of operating the second driving device to rotate the third gear;
And a gear shifting step of controlling the rotation of the gear set or the first gear by operating the second driving device or the first driving device through a control unit.
Shift control method characterized in that the shift is possible without changing the gear through the operation control of the second drive device or the first drive device. The method of claim 22, wherein the second driving step
A third gear rotating step of rotating the third gear connected to the second driving shaft of the second driving device;
A fourth gear rotating step of rotating a fourth gear in association with rotation of the third gear;
A differential device rotating step of rotating the differential device in association with the rotation of the fourth gear;
And an axle rotation step of rotating the axle connected to the differential set. The method of claim 23, wherein the shifting step
And a sixth shifting step of reducing the rotational speed of the fourth gear by generating power by switching the second driving device connected to the third gear to the power generation mode. The method of claim 23, wherein the shifting step
And a seventh shifting step of rotating the first gear connected to the first driving shaft of the first driving device in a direction opposite to the rotational direction of the fourth gear to reduce the rotational speed of the fourth gear. . The method of claim 23, wherein the shifting step
And an eighth shifting step of increasing the rotational speed of the fourth gear by rotating the first gear connected to the first driving shaft of the first driving device in the same direction as the rotational direction of the fourth gear. . In the shift control method using the shift system according to any one of claims 7 to 10,
A third driving step of rotating the first gear by operating the first driving device; And a gear shifting step of controlling the rotation of the gear set by operating the second driving device or the first driving device through a control unit.
The third driving step
A first gear rotation step of rotating the first gear connected to the first drive shaft of the first drive device, and the first and second center gear in which the first and second center gears rotate in conjunction with the rotation of the first gear A rotation step, a differential device rotation step in which a differential set rotates in association with rotation of the second center gear, and an axle rotation step in which an axle connected to the differential set rotates,
Shift control method characterized in that the shift is possible without changing the gear through the operation control of the second drive device or the first drive device. The method of claim 27, wherein the shifting step
By generating power in the second drive device by using the rotation of the second drive shaft of the second drive device connected to the first center gear rotating in the first and second center gear rotation step, thereby increasing the rotational speed of the second center gear A shift control method comprising a ninth shift step. The method of claim 27, wherein the shifting step
And a tenth shift step of increasing the rotational speed of the second center gear by fixing the second drive shaft of the second driving device connected to the first center gear in the first and second center gear rotation steps. Control method. The method of claim 27, wherein the shifting step
Rotating the second drive shaft of the second driving device connected to the first center gear in a direction opposite to the direction of rotation of the second center gear in the first and second center gear rotation step, thereby increasing the rotational speed of the second center gear A shift control method comprising the 11 shift steps. The method of claim 30, wherein the shifting step
And a twelfth shifting step of stopping the rotation of the first gear by the first driving device and rotating the second center gear at high speed by the high speed rotation of the first center gear by the second driving device. Control method. The method of claim 27, wherein the shifting step
In the first and second center gear rotation step, by rotating the second drive shaft of the second driving device connected to the first center gear in the same direction as the rotation direction of the second center gear, the second speed reduction speed of the second center gear A shift control method comprising a 13 shift step. In the shift control method using the shift system according to any one of claims 7 to 10,
A fourth driving step of rotating the first center gear by operating the second driving device; And a gear shifting step of controlling the rotation of the gear set or the first gear by operating the second driving device or the first driving device through a control unit.
The fourth driving step
A first center gear rotation step of rotating a first center gear connected to a second drive shaft of a second driving device; a second center gear rotation step of rotating a second center gear in conjunction with rotation of the first center gear; By including a differential rotation step of rotating the differential set is linked to the rotation of the second center gear, and the axle rotation step of rotating the axle connected to the differential set,
Shift control method characterized in that the shift is possible without changing the gear through the operation control of the second drive device or the first drive device. The method of claim 33, wherein the shifting step
And a fourteenth shifting step of reducing the rotational speed of the second center gear by generating the second driving device connected to the first center gear in the power generation mode to generate power. The method of claim 33, wherein the shifting step
And a fifteenth shifting step of rotating the first gear connected to the first drive shaft of the first driving device in a direction opposite to the rotation direction of the second center gear, thereby reducing the rotational speed of the second center gear. Control method. The method of claim 33, wherein the shifting step
And a sixteenth shifting step of increasing the rotational speed of the second center gear by rotating the first gear connected to the first drive shaft of the first driving device in the same direction as the rotation direction of the second center gear. Control method. In the shift control method using the shift system according to any one of claims 11 to 14,
A fifth driving step of rotating the first gear by operating the first driving device; And a gear shifting step of controlling the rotation of the gear set by operating the second driving device or the first driving device through a control unit.
The fifth driving step is
A first gear rotation step of rotating the first gear connected to the first drive shaft of the first drive device, and third and fourth center gear in which the third and fourth center gear rotates in conjunction with the rotation of the first gear A rotation step, a differential device rotation step in which a differential set rotates in association with rotation of the fourth center gear, and an axle rotation step in which an axle connected to the differential set rotates,
Shift control method characterized in that the shift is possible without changing the gear through the operation control of the second drive device or the first drive device. The method of claim 37, wherein the shifting step
By generating power in the second driving device by using the rotation of the second drive shaft of the second driving device connected to the third center gear rotating in the third and fourth center gear rotation step, the rotation speed of the fourth center gear is increased. A shift control method comprising a seventeenth shift step. The method of claim 37, wherein the shifting step
And an eighteenth shifting step of increasing the rotational speed of the fourth center gear by fixing the second driving shaft of the second driving device connected to the third center gear in the third and fourth center gear rotation steps. Control method. The method of claim 37, wherein the shifting step
In the third and fourth center gear rotation step, by rotating the second drive shaft of the second drive device connected to the third center gear in a direction opposite to the direction of rotation of the fourth center gear, the rotation speed of the fourth center gear is increased A shift control method comprising 19 shift steps. The method of claim 40, wherein the shifting step
And a 20th speed change step of stopping rotation of the first gear by the first driving device and rotating the fourth center gear at high speed by the high speed rotation of the third center gear by the second driving device. Control method. The method of claim 37, wherein the shifting step
In the third and fourth center gear rotation step, by rotating the second drive shaft of the second drive device connected to the third center gear in the same direction as the rotation direction of the fourth center gear, the rotation speed of the fourth center gear is reduced A shift control method comprising a 21 shift step. In the shift control method using the shift system according to any one of claims 11 to 14,
A sixth driving step of operating the second driving device to rotate the third center gear; And a gear shifting step of controlling the rotation of the gear set or the first gear by operating the second driving device or the first driving device through a control unit.
The sixth driving step
A third center gear rotation step of rotating the third center gear connected to the second drive shaft of the second driving device; a fourth center gear rotation step of rotating the fourth center gear in conjunction with rotation of the third center gear; A differential device rotation step in which a differential set rotates in association with rotation of the fourth center gear, and an axle rotation step in which an axle connected to the differential set rotates,
Shift control method characterized in that the shift is possible without changing the gear through the operation control of the second drive device or the first drive device. The method of claim 43, wherein the shifting step
And a twenty-second shifting step of reducing the rotational speed of the fourth center gear by generating power by switching the second driving device connected to the third center gear to the power generation mode. The method of claim 43, wherein the shifting step
And a twenty-third shifting step of rotating the first gear connected to the first driving shaft of the first driving device in a direction opposite to the rotational direction of the fourth center gear to reduce the rotational speed of the fourth center gear. Control method. The method of claim 43, wherein the shifting step
And a twenty-fourth shifting step of increasing the rotational speed of the fourth center gear by rotating the first gear connected to the first drive shaft of the first driving device in the same direction as the rotation direction of the fourth center gear. Control method.
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* Cited by examiner, † Cited by third party
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WO2014196751A1 (en) * 2013-06-03 2014-12-11 Song Kil Bong Double cross-connecting gear device
CN108883699A (en) * 2016-03-28 2018-11-23 德纳重型车辆系统集团有限责任公司 Monomotor axle shaft with multiple ratios
GB2582598A (en) * 2019-03-27 2020-09-30 Jaguar Land Rover Ltd Vehicle powertrain

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014196751A1 (en) * 2013-06-03 2014-12-11 Song Kil Bong Double cross-connecting gear device
CN108883699A (en) * 2016-03-28 2018-11-23 德纳重型车辆系统集团有限责任公司 Monomotor axle shaft with multiple ratios
US11054009B2 (en) 2016-03-28 2021-07-06 Dana Heavy Vehicle Systems Group, Llc Single electric motor drive axle with multiple ratios
CN108883699B (en) * 2016-03-28 2022-02-11 德纳重型车辆系统集团有限责任公司 Single motor drive axle with multiple ratios
US11460096B2 (en) 2016-03-28 2022-10-04 Dana Heavy Vehicle Systems Group, Llc Single electric motor drive axle with multiple ratios
GB2582598A (en) * 2019-03-27 2020-09-30 Jaguar Land Rover Ltd Vehicle powertrain

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