KR20170070629A - Power transmission system of hybrid electric vehicle - Google Patents
Power transmission system of hybrid electric vehicle Download PDFInfo
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- KR20170070629A KR20170070629A KR1020150178394A KR20150178394A KR20170070629A KR 20170070629 A KR20170070629 A KR 20170070629A KR 1020150178394 A KR1020150178394 A KR 1020150178394A KR 20150178394 A KR20150178394 A KR 20150178394A KR 20170070629 A KR20170070629 A KR 20170070629A
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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
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
- F16H3/72—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion with a secondary drive, e.g. regulating motor, in order to vary speed continuously
- F16H3/727—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion with a secondary drive, e.g. regulating motor, in order to vary speed continuously with at least two dynamo electric machines for creating an electric power path inside the gearing, e.g. using generator and motor for a variable power torque path
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
- B60K6/26—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the motors or the generators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
- B60K6/38—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the driveline clutches
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/50—Architecture of the driveline characterised by arrangement or kind of transmission units
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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
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
- F16H3/08—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
- F16H3/083—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts with radially acting and axially controlled clutching members, e.g. sliding keys
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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
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Hybrid Electric Vehicles (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
A power transmission device for a hybrid vehicle is disclosed. A power transmission device for a hybrid vehicle according to an embodiment of the present invention is a hybrid vehicle power transmission device using an engine and a motor / generator as a power source. The power transmission device transmits a rotational power of the engine to a drive force of a drive wheel An engine power transmitting portion; And a motor power transmission portion disposed on the same axis line of the engine power transmission portion and transmitting the rotational power of the motor / generator directly to the driving force of the drive wheel.
Description
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power transmission device for a hybrid vehicle, and more particularly, to a power transmission device for a hybrid vehicle that simplifies an internal configuration to reduce weight and production cost, .
The environmentally friendly technology of automobiles is a core technology with survival of the future automobile industry, and advanced automobile manufacturers are concentrating on development of environmentally friendly vehicles to achieve environmental and fuel efficiency regulations.
Accordingly, automobile manufacturers are developing electric vehicles (EVs), hybrid electric vehicles (HEVs), and fuel cell electric vehicles (FCEVs) as futuristic automobile technologies.
Because the above-mentioned future type of automobile has various technical limitations such as weight and cost, automakers pay attention to the hybrid vehicle as an alternative to realistic problems for satisfying exhaust gas regulations and improving fuel efficiency, and in order to put them into practical use There is intense competition.
A hybrid vehicle is a vehicle using two or more power sources and can be combined in various ways. The energy source is a gasoline engine or a diesel engine using conventional fossil fuel, The motor / generator is mixed and used.
Such a hybrid vehicle uses a motor / generator having a relatively low torque characteristic at a low speed as a main power source and an engine having a relatively high torque characteristic at a high speed as a main power source.
Accordingly, the hybrid vehicle has an excellent effect in improving fuel economy and reducing exhaust gas because the engine using the fossil fuel is stopped in the low speed section and the motor / generator is used.
The matters described in the background section are intended to enhance the understanding of the background of the invention and may include matters not previously known to those skilled in the art.
An embodiment of the present invention is to provide a power transmission device for a hybrid vehicle that simplifies the internal structure to reduce the weight and production cost, and improves the mountability by minimizing the total length by arranging parts in parallel.
In one or more embodiments of the present invention, a power transmission device of a hybrid vehicle using an engine and a motor / generator as a power source, the power transmission device comprising: an engine power transmission portion for transmitting the rotational power of the engine through a transmission, ; And a motor power transmitting portion disposed on the same axis line of the engine power transmitting portion and transmitting the rotational power of the motor / generator directly to the driving force of the driving wheel.
Also, the engine power transmitting portion is disposed on the same axis as the engine, and the input shaft receives rotational power of the engine through the clutch. A transmission receiving the rotational power of the input shaft and shifting to a multi-stage shift according to driving conditions; And an output shaft that decelerates the rotational power transmitted from the output shaft of the transmission and transmits the rotational power to the differential reduction gear of the differential.
The output shaft of the transmission may protrude toward the engine in parallel with the input shaft, and the transmission output gear may be integrally formed at an end thereof.
Further, the motor power transmission unit may include a motor / generator that simultaneously performs a motor and a generator function, and is radially disposed at a front portion of the input shaft; A motor shaft disposed on the input shaft without rotation interference and receiving power from the motor generator / generator; And an intermediate shaft that receives power from the motor shaft and transmits the power to the output shaft that is connected to the engine power transmission unit through an intermediate output gear.
The output shaft may be integrally formed with a transmission output gear of the engine power transmission portion and an output shaft input gear connected to the intermediate output gear of the motor power transmission portion at the same time as external gears.
The embodiment of the present invention provides EV, HEV, and engine running mode using the engine and the motor / generator as a power source, thereby achieving a remarkable improvement in fuel economy compared with a general vehicle.
Further, by disposing the shifting parts on the two axes arranged in parallel to each other, the total length can be minimized and the mountability can be improved.
In addition, the internal structure can be simplified and reduced in weight, and the production cost can be reduced, so that it can be easily applied to low-cost hybrid vehicles.
In addition, it is possible to improve the power transmission efficiency and the fuel efficiency by combining the structure of the series and the heat exchange type.
In addition, effects obtainable or predicted by the embodiments of the present invention will be directly or implicitly disclosed in the detailed description of the embodiments of the present invention. That is, various effects to be predicted according to the embodiment of the present invention will be disclosed in the detailed description to be described later.
1 is a configuration diagram of a power transmission apparatus for a hybrid vehicle according to an embodiment of the present invention.
2 is a power transmission system diagram in the EV mode of the power transmission apparatus for a hybrid vehicle according to the embodiment of the present invention.
3 is a power transmission system diagram of a power transmission apparatus for a hybrid vehicle according to an embodiment of the present invention in an engine direct mode.
4 is a power transmission system diagram of a power transmission apparatus for a hybrid vehicle according to an embodiment of the present invention in an engine direct mode and auxiliary power addition mode (BOOST).
5 is a power transmission system diagram in a charging mode of a power transmission apparatus for a hybrid vehicle according to an embodiment of the present invention.
6 is a power transmission system diagram in a regenerative braking mode of a power transmission apparatus for a hybrid vehicle according to an embodiment of the present invention.
Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will be readily apparent to those skilled in the art to which the present invention pertains. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
In order to clearly illustrate the present invention, parts not related to the description are omitted, and the same or similar components are denoted by the same reference numerals throughout the specification.
In the following description, the names of the components are denoted by the first, second, etc. in order to distinguish them from each other because the names of the components are the same and are not necessarily limited to the order.
1 is a configuration diagram of a power transmission device of a hybrid vehicle according to an embodiment of the present invention.
Referring to FIG. 1, a hybrid vehicle power transmission device according to an embodiment of the present invention includes an engine ENG and a motor / generator MG as a power source, an engine power A motor power transmission portion MP for decelerating and outputting the rotational power of the motor / generator MG, and a motor / generator MG for transmitting rotation from the engine power transmission portion EP and the motor power transmission portion MP And an output shaft OS that decelerates the power and transmits it to a longitudinal deceleration mechanism FD including a differential gear (DIFF).
The engine power transmitting portion EP includes an engine ENG, an input shaft IS, a transmission AMT, and a transmission output shaft TS.
The engine ENG may be a known engine such as a gasoline engine or a diesel engine using a conventional fossil fuel as the main power source. An input shaft IS1 is selectively connected to the output side of the engine ENG do.
The input shaft IS is connected to the output side of the engine ENG via a clutch CL and the leading end of the input shaft IS is connected to the transmission AMT.
The clutch CL is configured to be automatically controlled by a hybrid control unit (not shown), and an automatic transmission that does not require manual operation of the driver is applied to the transmission (AMT).
Also, the rotational power of the engine shifted in the transmission (AMT) is transmitted to the output shaft OS through the transmission output gear TOG on the transmission output shaft TS, and the transmission output shaft TS is formed so as to face the engine do.
The motor power transmission portion MP includes a motor / generator MG, a motor shaft MS, and an intermediate shaft CS.
The motor / generator MG functions as a motor and a generator. The motor / generator MG includes a stator ST fixed to the transmission housing H and a rotor RT rotatably supported inside the stator ST radially , And the rotor (RT) is directly connected to the motor shaft (MS).
The motor shaft MS is a hollow shaft member disposed on the outer circumferential side of the input shaft IS without rotating interference and a motor output gear MOG is integrally formed on the opposite side of the motor / generator MG.
The intermediate shaft CS is disposed parallel to the motor shaft MS at a predetermined distance and integrally formed with an intermediate input gear CIG connected to the motor output gear MOG and the external gear at one side thereof, An intermediate output gear (COG) is integrally formed on the opposite side of the intermediate input gear CIG.
Accordingly, the power of the motor / generator MG is transmitted to the output shaft OS through the motor shaft MS and the intermediate shaft CS.
The output shaft OS is disposed parallel to the intermediate shaft CS and the transmission output shaft TS at regular intervals and is connected to the transmission output gear TOG and the intermediate output gear COG at the same time, And a final output gear OG is integrally formed on the opposite side of the output shaft input gear OIG so that the longitudinal reduction gear FG of the longitudinal speed reduction mechanism FD and the external gear connection FG of the longitudinal speed reduction mechanism FD are integrally formed. do.
2 is a power transmission system diagram in the EV mode of the power transmission apparatus for a hybrid vehicle according to the embodiment of the present invention.
2, when the engine ENG is stopped and the clutch CL is released in the EV mode, the rotational power of the motor / generator MG is transmitted to the motor shaft MS, the motor output gear MOG, (DIFF) through the intermediate input gear CIG, the intermediate shaft CS, the intermediate output gear COG, the output shaft input gear OIG, the output shaft OS, and the final output gear OG. The vehicle is driven while being transmitted to the gear FG.
That is, the electronic continuously-variable shifting is performed through the output control of the motor / generator MG2, and the vehicle is driven.
3 is a power transmission system diagram of a power transmission apparatus for a hybrid vehicle according to an embodiment of the present invention in an engine direct mode.
Referring to FIG. 3, in the engine direct-coupled mode, the motor / generator MG is driven and driven only by the rotational power of the engine ENG.
Accordingly, the rotational power generated in the engine ENG is transmitted to the engine CL via the clutch CL, the input shaft IS, the transmission AMT, the transmission output shaft TS, the transmission output gear TOG, the output shaft input gear OIG, , And is transmitted to the longitudinal reduction gear FG of the differential gear DIFF via the final output gear OG to drive the vehicle.
At this time, the transmission (AMT) is automatically shifted according to the driving condition of the vehicle, and the vehicle is operated like a normal automatic transmission vehicle.
4 is a power transmission system diagram when the power of the motor / generator is added as auxiliary power in the engine direct mode of the hybrid vehicle power transmission apparatus according to the embodiment of the present invention.
4, the rotational power of the engine ENG is transmitted to the input shaft IS, the transmission AMT, the transmission output shaft TS, the transmission output gear TOG, the output shaft input gear OIG , The output shaft OS and the final output gear OG to the differential reduction gear FG of the differential DIFF.
The rotational power of the motor / generator MG, which is the auxiliary power, is transmitted to the motor MG via the motor shaft MS, the motor output gear MOG, the intermediate input gear CIG, the intermediate shaft CS, the intermediate output gear COG, Is transmitted to the output shaft OS via the output gear OIG and transmitted to the longitudinal reduction gear FG of the differential gear DIFF through the final output gear OG together with the rotational power of the engine ENG, .
5 is a power transmission system diagram in a charging mode of a power transmission apparatus for a hybrid vehicle according to an embodiment of the present invention.
5, the rotational power of the engine ENG is transmitted through the clutch CL, the input shaft IS, the transmission AMT, the transmission output shaft TS, the transmission output gear TOG, The vehicle is driven while being transmitted to the longitudinal reduction gear FG of the differential gear DIFF via the output shaft input gear OIG, the output shaft OS and the final output gear OG.
A part of the rotational power transmitted to the output shaft input gear OIG in the power transmission process is transmitted to the intermediate output gear COG, the intermediate shaft CS, the intermediate input gear CIG, the motor output gear MOG, To the motor / generator (MG) via the microprocessor (MS) to operate as a generator so that charging is performed.
6 is a power transmission system diagram in a regenerative braking mode of a power transmission apparatus for a hybrid vehicle according to an embodiment of the present invention.
Referring to Fig. 6, when the vehicle decelerates during driving or when the braking is applied, the rotational power of the drive wheels is transmitted reversely so that the motor / generator MG operates as a generator.
That is, in the regenerative braking mode, the rotational power transmitted from the drive wheels in the reverse state in the state in which the clutch CL is disengaged is transmitted to the final reduction gear FG, the final output gear OG, the output shaft OS, Generator MG through the intermediate output gear COG, the intermediate shaft CS, the intermediate input gear CIG, the motor output gear MOG and the motor shaft MS to operate the generator, .
The power transmission apparatus according to the embodiment of the present invention can provide an EV and an engine running mode as a power source by an engine and a single motor / generator, and can be driven at an operating point of optimum efficiency according to a requirement of a driver .
In addition, a power transmission mechanism such as a synchronizer mechanism or a dog clutch may be disposed at an appropriate position to enable optimization of transmission transmission efficiency that directly affects the fuel consumption of the vehicle when the engine and the motor are driven.
Further, when the speed of the rotating power is changed in the transmission (AMT), the speed can be changed after the speed synchronization using the motor, so that the capacity and size of the synchronizing device can be minimized.
In addition, the internal structure can be simplified and reduced in weight, and the production cost can be reduced, so that it can be easily applied to low-cost hybrid vehicles.
It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined in the appended claims. It will be understood that the invention may be varied and varied without departing from the scope of the invention.
CL ... clutch
CS ... Intermediate axis
DIFF ... Differential
EP ... engine power transmission part
FG ... longitudinal reduction gear
IS ... input shaft
MG ... Motor / generator
MP ... Motor power transmission part
OG ... Final output gear
OS ... Output shaft
Claims (5)
An engine power transmission unit that shifts the rotational power of the engine through a transmission and directly transmits the rotational power of the engine as a driving force of a drive wheel;
And a motor power transmitting portion disposed on the same axis line of the engine power transmitting portion and transmitting the rotational power of the motor / generator directly to the driving force of the drive wheel.
The engine power transmission portion
An input shaft disposed on the same axis as the engine and receiving rotational power of the engine through the clutch;
A transmission receiving the rotational power of the input shaft and shifting to a multi-stage shift according to driving conditions;
And an output shaft that decelerates the rotational power transmitted from the output shaft of the transmission and transmits the decelerated gear to the differential reduction gear of the differential.
The output shaft of the transmission
And a transmission output gear which is protruded to the engine side in parallel with the input shaft and is connected to the output shaft in a power connection.
The motor-
A motor / generator that simultaneously performs a motor and a generator function, and is radially disposed at a front portion of the input shaft;
A motor shaft disposed on the input shaft without rotation interference and receiving power from the motor generator / generator;
And an intermediate shaft that receives power from the motor shaft and transmits power to an output shaft of the engine power transmission unit through an intermediate output gear.
The output shaft
And an output shaft input gear connected to the transmission output gear of the engine power transmitting portion and the intermediate output gear of the motor power transmitting portion at the same time as external gears.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020150178394A KR20170070629A (en) | 2015-12-14 | 2015-12-14 | Power transmission system of hybrid electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020150178394A KR20170070629A (en) | 2015-12-14 | 2015-12-14 | Power transmission system of hybrid electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR20170070629A true KR20170070629A (en) | 2017-06-22 |
Family
ID=59282923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020150178394A KR20170070629A (en) | 2015-12-14 | 2015-12-14 | Power transmission system of hybrid electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR20170070629A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102021208071A1 (en) | 2020-07-28 | 2022-02-03 | Hyundai Kefico Corporation | Device and method for controlling vehicle using traffic information |
-
2015
- 2015-12-14 KR KR1020150178394A patent/KR20170070629A/en not_active Application Discontinuation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102021208071A1 (en) | 2020-07-28 | 2022-02-03 | Hyundai Kefico Corporation | Device and method for controlling vehicle using traffic information |
| US11724684B2 (en) | 2020-07-28 | 2023-08-15 | Hyundai Kefico Corporation | Apparatus and method for controlling vehicle utilizing traffic information |
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