CN106740048B - Power system of hybrid electric vehicle - Google Patents

Power system of hybrid electric vehicle Download PDF

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Publication number
CN106740048B
CN106740048B CN201710070469.6A CN201710070469A CN106740048B CN 106740048 B CN106740048 B CN 106740048B CN 201710070469 A CN201710070469 A CN 201710070469A CN 106740048 B CN106740048 B CN 106740048B
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China
Prior art keywords
gear
clutch
main shaft
motor
planet
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CN201710070469.6A
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Chinese (zh)
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CN106740048A (en
Inventor
毛江
刘巍
胡芳
刘拴起
庄周
樵明月
张代明
吴金兵
黄刚强
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Chongqing Tsingshan Industrial Co Ltd
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Chongqing Tsingshan Industrial Co Ltd
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Priority to CN201710070469.6A priority Critical patent/CN106740048B/en
Publication of CN106740048A publication Critical patent/CN106740048A/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT 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
    • B60K6/00Arrangement 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
    • B60K6/20Arrangement 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
    • B60K6/22Arrangement 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
    • B60K6/36Arrangement 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 transmission gearings
    • B60K6/365Arrangement 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 transmission gearings with the gears having orbital motion
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT 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
    • B60K6/00Arrangement 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
    • B60K6/20Arrangement 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
    • B60K6/42Arrangement 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 the architecture of the hybrid electric vehicle
    • B60K6/44Series-parallel type
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/62Hybrid vehicles

Abstract

The invention provides a hybrid electric vehicle power system with better power matching property, a crankshaft, a first clutch, a sun gear and a first gear are sequentially connected from left to right, a first main shaft and a second main shaft are coaxial with a motor shaft of a driving motor, the first main shaft extends out from the left end of a transmission to the left, the left end of the first main shaft is connected with the right end of a second clutch, the right end of the second main shaft is connected with the left end of the second clutch, the left end of the second main shaft is connected with the right end of a locking clutch, the left end of the locking clutch is connected with the motor shaft of the driving motor, a motor gear is arranged on the motor shaft of the driving motor and is positioned at the left side of the locking clutch, a second gear is arranged on the second main shaft and is positioned between the locking clutch and the second clutch, the motor gear and the second gear are respectively engaged with an outer gear ring and the first gear, the outer gear ring and the first gear are respectively fixedly connected with a gear, the sun gear is positioned in the planet carrier, the planet gear is rotatably arranged on the planet carrier, and the gear ring is arranged outside the planet carrier.

Description

Power system of hybrid electric vehicle
Technical Field
The invention relates to a hybrid electric vehicle, in particular to a hybrid electric vehicle power system.
Background
The hybrid electric vehicle power system generally has the functions of switching power modes, matching an engine with a driving motor and the like. Therefore, the common hybrid electric vehicle power system on the market has the technical problems that the engine is directly connected with the driving motor; in the hybrid mode, the power can be well output only by ensuring the rotating speeds of the engine and the driving motor to be consistent, the power matching is poor, and the functions of large torque and continuous speed regulation of the driving motor cannot be fully exerted; in the hybrid mode, the change of the transmission ratio is discontinuous, gear shifting impact exists, the engine is difficult to work in a high-efficiency area, the gear shifting smoothness is poor, and the working efficiency is not high; meanwhile, the engine is directly connected with the driving motor, and when the three power modes of the single engine, the pure electric power mode and the hybrid power mode are switched, the impact on a power system is large, and smooth switching is often difficult.
Disclosure of Invention
The invention aims to solve the technical problem of providing a hybrid electric vehicle power system which has good power matching performance, good gear shifting smoothness, high working efficiency and smooth switching.
In order to solve the technical problems, the invention adopts the following technical scheme;
the utility model provides a hybrid vehicle power system, includes contains the engine and connects in the bent axle of the right-hand member of this engine, first clutch, contains driving motor and the motor shaft, second clutch, main shaft and the derailleur that stretch out by this driving motor's right-hand member, its characterized in that: the engine is characterized by further comprising an outer gear ring, a motor gear, a first gear, a second gear, a locking clutch and a planet row comprising a sun gear, a planet wheel, a planet carrier and a gear ring, wherein the crankshaft of the engine, the first clutch, the sun gear of the planet row and the first gear are sequentially connected from left to right, the main shaft comprises a first main shaft and a second main shaft, the first main shaft and the second main shaft are coaxial with the motor shaft of the driving motor, the first main shaft extends out from the left end of the transmission to the left, the left end of the first main shaft is connected with the right end of the second clutch, the right end of the second main shaft is connected with the left end of the second clutch, the left end of the second main shaft is connected with the right end of the locking clutch, the left end of the locking clutch is connected with the motor shaft of the driving motor, the motor gear is installed on the motor shaft of the driving motor and located on the left side of the locking clutch, the second gear is installed on the second, the motor gear and the second gear are further respectively meshed with an outer gear ring and a first gear, the outer gear ring and the first gear are respectively fixedly connected with a gear ring and a planet carrier of the planet row, a sun gear of the planet row is located in the planet carrier, a planet gear is rotatably installed on the planet carrier, and the gear ring is installed outside the planet carrier.
After the structure is adopted, the engine drives the sun gear of the planet row and the driving motor drives the gear ring, and the two powers are coupled through the planet row, so that the power characteristics of large torque and continuous speed change of the driving motor can be better matched, and the matching property is better; the engine and the driving motor are connected with power through the planet row, and stepless speed change can be realized through speed regulation of the driving motor in a pure electric mode and a hybrid power mode. Therefore, the gear shifting smoothness is good, the working efficiency is high, and the switching of the power modes is smooth.
Preferably, the first clutch and the second clutch are both dry clutches. The first clutch and the second clutch are simple in structure, low in control difficulty and low in cost, and therefore the clutch is simple in structure and low in control difficulty and cost.
Preferably, the number of teeth of the first gear is less than that of the second gear, so that the power is transmitted from the first gear to the second gear in the mixed mode, and the functions of speed reduction and torque increase can be better achieved.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Detailed Description
Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Referring to fig. 1, the hybrid vehicle powertrain of the present invention includes an engine 1 and a crankshaft 2 connected to a right end of the engine 1, a first clutch 3, a motor shaft 5 including a driving motor 4 and extending from a right end of the driving motor 4, a second clutch 15, a main shaft 16, and a transmission 17. As shown in fig. 1, the present invention further includes an outer gear ring 10, a motor gear 11, a first gear 12, a second gear 13, a lock-up clutch 14, and a planetary row including a sun gear 6, a planetary gear 7, a planet carrier 8, and a gear ring 9, where the crankshaft 2, the first clutch 3, the sun gear 6, and the first gear 12 of the engine 1 are sequentially connected from left to right, the main shaft 16 includes a first main shaft 160 and a second main shaft 161, the first main shaft 160 and the second main shaft 161 are coaxial with the motor shaft 5 of the driving motor 4, the first main shaft 160 extends leftward from the left end of the transmission 17, the left end of the first main shaft is connected to the right end of the second clutch 15, the right end of the second main shaft 161 is connected to the left end of the second clutch 15, the left end of the second main shaft is connected to the right end of the lock-up clutch 14, the left end of the lock-up clutch 14 is connected to the motor shaft 5 of the driving motor 4, the motor gear 11 is mounted on the motor shaft 5 of the driving, the second gear 13 is mounted on a second main shaft 161 of the main shaft 16 and is located between the lock-up clutch 14 and the second clutch 15, the motor gear 11 and the second gear 13 are further respectively meshed with the outer gear ring 10 and the first gear 12, the outer gear ring 10 and the first gear 12 are respectively fixedly connected with the gear ring 9 and the planet carrier 8 of the planet row, the sun gear 6 of the planet row is located inside the planet carrier 8, the planet gear 7 is rotatably mounted on the planet carrier 8, and the gear ring 9 is mounted outside the planet carrier 8.
The first clutch 3 and the second clutch 15 are both dry clutches.
The first gear 12 has a smaller number of teeth than the second gear 13.
The working principle of the invention is as follows:
single engine mode: the engine 1 is operated, the drive motor 4 is not operated, the first clutch 3 is engaged, the lock-up clutch 14 is engaged, and the second clutch 15 is engaged. The engine 1 transmits power to the sun gear 6 of the planetary line through the crankshaft 2 and the first clutch 3, and the planetary line transmits power through two power paths: the first one is that the gear ring 9 of the planet row transmits the power to the external gear ring 10, the motor gear 11, the motor shaft 5 and the lock-up clutch 14 in turn, and the second one transmits the power to the first gear 12 by the planet carrier 8 of the planet row; two power are coupled and acted on the second gear 13 through the first locking clutch 14 and the first gear 12 of the second gear, and then are sequentially transmitted to the second main shaft 161, the second clutch 15 and the first main shaft 160, and finally transmitted to the transmission 17.
Pure electric mode: the engine 1 is not operated, the drive motor 4 is operated, the first clutch 3 is disconnected, the lock-up clutch 14 is engaged, and the second clutch 15 is engaged. The drive motor 4 transmits power to the lock-up clutch 14, the second main shaft 161, the second clutch 15, and the first main shaft 160 in this order via the motor shaft 5, and finally to the transmission 17.
Mixing mode: the engine 1 is operated, the drive motor 4 is operated, the first clutch 3 is engaged, the lock-up clutch 14 is disengaged, and the second clutch 15 is engaged. The engine 1 sequentially transmits power to the first clutch 3 and the sun gear 6 of the planetary row through the crankshaft 2, the driving motor 4 sequentially transmits power to the motor gear 11, the outer gear ring 10 and the gear ring 9 of the planetary row through the motor shaft 5, the planetary row couples and transmits the power from the sun gear 6 and the gear ring 9 to the planet carrier 8, and then sequentially transmits the power to the first gear 12, the second gear 13, the second main shaft 161, the second clutch 15 and the first main shaft 160 and finally to the transmission 17.
Starting the engine: the engine 1 is to be started, the drive motor 4 is operated, the first clutch 3 is engaged, the lock-up clutch 14 is engaged, and the second clutch 15 is disengaged. The drive motor 4 transmits power through two paths by the motor shaft 5: the first is transmitted to an outer ring gear 10 and a ring gear 9 of a planetary row by a motor gear 11, the second is transmitted to a second gear 13, a first gear 12 and a planet carrier 8 of the planetary row by a lock-up clutch 14, the planetary row transmits power from the sun gear 6 and the ring gear 9 to the sun gear 6, the first clutch 3 and the crankshaft 2 in a coupling manner, and the engine 1 is started by the rotation of the crankshaft 2.
And (3) charging mode: the engine 1 is operated, the drive motor 4 is in a power generation state, the first clutch 3 is engaged, the lock-up clutch 14 is engaged, and the second clutch 15 is disengaged. The engine 1 transmits power to the sun gear 6 of the planetary row by the crankshaft 2 and the first clutch 3, and the power is transmitted by the planetary row in two paths: the first one transmits power to the outer gear ring 10 and the motor gear 11 in sequence through the gear ring 9 of the planet row, the second one transmits power to the first gear 12, the second gear 13 and the lock-up clutch 14 in sequence through the planet carrier 8 of the planet row, the power from the motor gear 11 and the lock-up clutch 14 is transmitted to the motor shaft 5 in a coupling mode, and the motor shaft 5 rotates to drive the driving motor 4 in a power generation state to generate power.
Energy recovery: the engine 1 is not operated, the drive motor 4 is in a power generation state, the first clutch 3 is disengaged, the lock-up clutch 14 is engaged, and the second clutch 15 is engaged. When the automobile runs, power from the wheels is transmitted to the transmission 17, the transmission 17 transmits the power to the first main shaft 160, the second clutch 15, the second main shaft 161, the lock-up clutch 14 and the motor shaft 5 in sequence, and the motor shaft 5 rotates to drive the driving motor 4 in a power generation state to generate power.
While the preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present invention.

Claims (3)

1. The utility model provides a hybrid vehicle driving system, includes contains engine (1) and connects in bent axle (2) of the right-hand member of this engine (1), first clutch (3), contains driving motor (4) and motor shaft (5) that stretch out by the right-hand member of this driving motor (4), second clutch (15), main shaft (16) and derailleur (17), its characterized in that: also comprises an external gear ring (10), a motor gear (11), a first gear (12), a second gear (13), a locking clutch (14) and a planet row containing a sun gear (6), a planet gear (7), a planet carrier (8) and a gear ring (9),
the crankshaft (2) of the engine (1), the first clutch (3), the sun gear (6) of the planet row and the first gear (12) are sequentially connected from left to right,
the main shaft (16) comprises a first main shaft (160) and a second main shaft (161), the first main shaft (160) and the second main shaft (161) are coaxial with a motor shaft (5) of the driving motor (4), the first main shaft (160) extends leftwards from the left end of the transmission (17), the left end of the first main shaft is connected with the right end of the second clutch (15), the right end of the second main shaft (161) is connected with the left end of the second clutch (15), the left end of the second main shaft is connected with the right end of the locking clutch (14), the left end of the locking clutch (14) is connected with the motor shaft (5) of the driving motor (4),
the motor gear (11) is arranged on a motor shaft (5) of the driving motor (4) and is positioned on the left side of the locking clutch (14), the second gear (13) is arranged on a second main shaft (161) of the main shaft (16) and is positioned between the locking clutch (14) and the second clutch (15),
the motor gear (11) and the second gear (13) are also respectively meshed with the external gear ring (10) and the first gear (12),
the outer gear ring (10) and the first gear (12) are respectively and fixedly connected with the gear ring (9) and the planet carrier (8) of the planet row,
the sun gear (6) of the planet row is positioned in the planet carrier (8), the planet gear (7) is rotatably arranged on the planet carrier (8), and the gear ring (9) is arranged outside the planet carrier (8).
2. The hybrid vehicle powertrain system of claim 1, wherein: the first clutch (3) and the second clutch (15) are both dry clutches.
3. The hybrid vehicle powertrain system of claim 2, wherein: the number of teeth of the first gear (12) is smaller than that of the second gear (13).
CN201710070469.6A 2017-02-09 2017-02-09 Power system of hybrid electric vehicle Active CN106740048B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710070469.6A CN106740048B (en) 2017-02-09 2017-02-09 Power system of hybrid electric vehicle

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Application Number Priority Date Filing Date Title
CN201710070469.6A CN106740048B (en) 2017-02-09 2017-02-09 Power system of hybrid electric vehicle

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CN106740048B true CN106740048B (en) 2020-10-02

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Publication number Priority date Publication date Assignee Title
CN109421510B (en) * 2017-08-28 2020-10-02 郑州宇通客车股份有限公司 Hybrid electric vehicle and power system thereof

Family Cites Families (7)

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Publication number Priority date Publication date Assignee Title
CN101519035A (en) * 2008-12-31 2009-09-02 南京汽车集团有限公司 Mixed power electromechanical coupling power transmission device
JP2010269765A (en) * 2009-05-25 2010-12-02 Ud Trucks Corp Power transmitting mechanism for hybrid vehicle
CN102941801B (en) * 2012-11-30 2015-09-30 长城汽车股份有限公司 Drive apparatus for hybrid vehicle
SE1451654A1 (en) * 2013-12-23 2015-06-24 Scania Cv Ab Procedure for starting vehicles with power balance
CN105216653A (en) * 2015-10-30 2016-01-06 福建万润新能源科技有限公司 A kind of double-motor multi-mode power system of adjustable speed and driving method
CN106379156B (en) * 2016-10-31 2019-04-09 奇瑞汽车股份有限公司 Hybrid power transmission system and hybrid vehicle
CN206551856U (en) * 2017-02-09 2017-10-13 重庆青山工业有限责任公司 A kind of hybrid power automobile power system

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