CN109278523B - Hybrid electric driving device - Google Patents

Hybrid electric driving device Download PDF

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Publication number
CN109278523B
CN109278523B CN201811135656.9A CN201811135656A CN109278523B CN 109278523 B CN109278523 B CN 109278523B CN 201811135656 A CN201811135656 A CN 201811135656A CN 109278523 B CN109278523 B CN 109278523B
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engine
engagement
motor
hybrid electric
planet
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CN109278523A (en
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袁嘉龄
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Shenzhen Xingkang Powertrain Co ltd
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Shenzhen Xingkang Powertrain Co ltd
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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
    • B60K6/24—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 combustion engines
    • 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
    • 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
    • B60K6/36—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 transmission gearings
    • B60K6/365—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 transmission gearings with the gears having orbital motion
    • 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
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/62—Hybrid vehicles

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Hybrid Electric Vehicles (AREA)
  • Structure Of Transmissions (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

The invention provides a hybrid electric drive device, which comprises an engine, a first motor, a second motor, a first planet row, a second planet row, a first joint and separation element and a second joint and separation element, wherein the first motor is connected with the first planet row; the first planet row comprises a first sun gear, a first planet carrier and a first gear ring; the second planet row comprises a second sun gear, a second planet carrier and a second gear ring; the engine is connected with the first planet carrier, the first motor is connected with the first sun gear, the first planet carrier is connected with the second sun gear, the first gear ring is connected with the second gear ring, the second planet carrier is connected with the engine through the first joint separation element, the power output by the second planet carrier is converged with the power of the second motor through the second joint separation element and then is output to drive the wheels, and more working modes are realized through the two joint separation elements, so that the performance of the hybrid electric drive device is improved.

Description

Hybrid electric driving device
[ technical field ]
The invention relates to the technical field of vehicle driving, in particular to a hybrid electric driving device.
[ background art ]
In the existing power-split hybrid electric drive device based on the planet row, the power of an engine is divided into two paths by the planet row, one path of power flow drives a first motor to generate electricity, and the other path of power flow converges with the power output of a second motor to drive a vehicle. However, it has the following disadvantages: 1) the highest speed in the pure electric running mode is limited by the highest rotating speed of the first motor, so that the highest speed is lower, and the higher performance requirement cannot be met; 2) the engine cannot directly drive the vehicle, especially at high speeds, and is therefore less energy efficient. It would therefore also be desirable to provide a power-split hybrid electric drive with improved overall performance that addresses at least one of the above-mentioned problems.
[ summary of the invention ]
In order to overcome the problems in the prior art, the invention provides a hybrid electric drive device which can improve the performance of the hybrid electric drive device.
The invention provides a hybrid electric drive device, which comprises an engine, a first motor, a second motor, a first planet row, a second planet row, a first joint and separation element and a second joint and separation element, wherein the first motor is connected with the second motor; the first planet row comprises a first sun gear, a first planet carrier and a first gear ring; the second planet row comprises a second sun gear, a second planet carrier and a second gear ring; the engine is connected with the first planet carrier, the first motor is connected with the first sun gear, the first planet carrier is connected with the second sun gear, the first gear ring is connected with the second gear ring, the second planet carrier is connected with the engine through the first joint separation element, and the power output by the second planet carrier is converged with the power of the second motor through the second joint separation element and then is output to drive wheels.
Preferably, the first engagement and disengagement element is disengaged, the second engagement and disengagement element is disengaged, and the second motor drives the vehicle.
Preferably, the first engagement and disengagement element is engaged, the second engagement and disengagement element is disengaged, the first electric machine starts the engine, or the first electric machine is driven by the engine to generate electricity.
Preferably, the first engagement and disengagement element is disengaged, the second engagement and disengagement element is engaged, and the engine is power split by the first planetary row and the second planetary row.
Preferably, the first engagement and disengagement element is engaged, the second engagement and disengagement element is engaged, and the engine directly drives the vehicle.
Preferably, the first motor, the first planet row and the second planet row are arranged coaxially with the engine; the second electric machine is disposed on an axis parallel to an axis of the engine.
Preferably, the first engagement and disengagement element and the second engagement and disengagement element are both clutches.
Preferably, the first and second engagement and disengagement elements are both shift sleeves.
Compared with the prior art, the hybrid electric drive device realizes more operation modes through the two joint separation elements, thereby improving the performance of the hybrid electric drive device.
[ description of the drawings ]
FIG. 1 is a schematic structural diagram of a hybrid electric drive device in accordance with an embodiment of the present invention;
fig. 2 is a schematic structural view of a hybrid electric drive device according to another embodiment of the present invention.
[ detailed description of the invention ]
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1, hybrid electric drive 100 includes an engine 1, a first electric machine 2, a second electric machine 3, a first planetary row 4, a second planetary row 5, a first engagement and disengagement element 61, and a second engagement and disengagement element 62; the first planetary row 4 includes a first sun gear 41, a first carrier 42, and a first ring gear 43; the second planetary row 5 includes a second sun gear 51, a second carrier 52, and a second ring gear 53; the engine 1 is connected with the first planet carrier 42, the first motor 2 is connected with the first sun gear 41, the first planet carrier 42 is connected with the second sun gear 52, the first ring gear 43 is connected with the second ring gear 53, the second planet carrier 52 is connected with the engine 1 through the first joint separation element 61, and the power output by the second planet carrier 52 is converged with the power of the second motor 3 through the second joint separation element 62 and then output to drive wheels.
By providing two engagement and disengagement elements, a greater variety of operating modes can be achieved, thereby improving the performance of the hybrid electric drive.
Preferably, the first engagement and disengagement element 61 is disengaged, the second engagement and disengagement element 62 is disengaged, and the second electric machine 3 drives the vehicle. In the electric-only driving mode, the engine 1 is turned off, the first engagement and disengagement element 61 and the second engagement and disengagement element 62 are disengaged, and only the second electric machine 3 drives the vehicle to run. The maximum vehicle speed in this mode can be increased since it is no longer limited by the maximum rotational speed of the first electric machine 2.
Preferably, the first engagement and disengagement element 61 is engaged, the second engagement and disengagement element 62 is disengaged, the first electric machine 2 starts the engine 1, or the first electric machine 2 is driven by the engine 1 to generate electricity. When the vehicle shifts from the pure electric running condition in which the vehicle is driven to run only by the second motor 3 to the hybrid running condition, the first engaging and disengaging element 61 is engaged, the second engaging and disengaging element 62 is disengaged, the first planetary row 4 and the second planetary row rotate integrally, and the first motor 2 starts the engine 1. When operating in series mode, the first electric machine 2 is driven by the engine 1 to generate electricity, charge an electrical storage device, or supply electricity to the second electric machine 3.
Preferably, the first engagement and disengagement element 61 is disengaged, the second engagement and disengagement element 62 is engaged, and the engine 1 is power-split by means of the first planetary gear set 4 and the second planetary gear set 5.
From the kinematic equations of the first planetary row 4 and the second planetary row 5, the following kinematic and dynamic equations (1) and (2) can be obtained after analysis:
Figure BDA0001814606060000041
Tm1∶Tout∶Te＝k2∶k1(1+k2)∶(k1+k2+k1k2) (2)
in the formula: n ism1、nout、ne、Tm1、Tout、Te、k1、k2The rotational speed of the first electric machine 2, the rotational speed of the output, the rotational speed of the engine 1, the torque of the first electric machine 2, the torque of the output, the torque of the engine 1, the characteristic variables of the first planetary gear set 4 and the characteristic variables of the second planetary gear set 5 are provided, respectively, wherein the output is the second planetary gear carrier 52 shown in fig. 1.
For ease of processing, the first planet row 4 has a structural characteristic parameter which is equal to the structural characteristic parameter of the second planet row 5, i.e. k1＝k2But is not so limited.
For particular embodiments of the present invention, k may be selected1＝k21.6, then equations (5) and (6) can be simplified as:
nm1+2.6nout＝3.6ne (3)
Tm1∶Tout∶Te＝1∶2.6∶3.6 (4)
namely, the invention selects the structural characteristic parameter k1＝k2The kinematic equation obtained at 1.6 can realize that the kinematic and dynamic characteristics obtained at 2.6 of the structural characteristic parameter k in the prior art are the same, thereby reducing the value of the structural characteristic parameter. The radial dimensions of the planet rows are therefore reduced, so that the first planet rows 4 and the second planet rows 5 can be partially or completely embedded in the interior of the first electric machine 2, thereby providing axial space for arranging the first engaging and disengaging element 61 and/or the second engaging and disengaging element 62, so that a compact hybrid electric drive 100 is obtained.
Preferably, the first engagement and disengagement element 61 is engaged, the second engagement and disengagement element 62 is engaged, and the engine 1 directly drives the vehicle. In the hybrid driving mode, when the vehicle speed is high, the first engagement and disengagement element 61 and the second engagement and disengagement element 62 are engaged, the first planetary row 4 and the second planetary row 5 rotate integrally, power split is not performed, and the power of the engine 1 directly drives the vehicle, so that the efficiency is improved. At this time, the first motor 2 and the second motor 3 may operate in a motoring, generating, or other mode.
As shown in fig. 1, the first motor 2, the first planetary gear set 4, and the second planetary gear set 5 are disposed coaxially with the engine 1; the second electric machine 3 is arranged on an axis parallel to the axis of the engine 1, i.e., the two electric machines are arranged in a parallel-shaft configuration. In addition, the two motors may also be arranged in a coaxial configuration.
As shown in FIG. 1, the first engagement and disengagement element 61 and the second engagement and disengagement element 62 are both clutches, which may be wet multi-plate hydraulic clutches or other types of clutches.
As shown in fig. 2, the first engagement and disengagement element 61 and the second engagement and disengagement element 62 are both shift sleeves, which may be shift sleeves with synchronizers or without synchronizers, but are not limited thereto.
The hybrid electric drive device 100 according to the embodiment of the present invention can be used for a front-engine front-drive vehicle, a rear-engine front-drive vehicle, or a rear-engine rear-drive vehicle, but is not limited thereto.
The hybrid electric drive device 100 according to the embodiment of the present invention can realize more operation modes by providing two engagement and disengagement elements, thereby improving the performance of the hybrid electric drive device.
The above-described embodiments of the present invention do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims (6)

1. A hybrid electric drive, characterized by: the planetary gear train comprises an engine, a first motor, a second motor, a first planetary row, a second planetary row, a first engaging and disengaging element and a second engaging and disengaging element; the first planet row comprises a first sun gear, a first planet carrier and a first gear ring; the second planet row comprises a second sun gear, a second planet carrier and a second gear ring; the engine is connected with the first planet carrier, the first motor is connected with the first sun gear, the first planet carrier is connected with the second sun gear, the first gear ring is connected with the second gear ring, the second planet carrier is connected with the engine through the first joint separation element, and the power output by the second planet carrier is converged with the power of the second motor through the second joint separation element and then is output to drive wheels;
the first engagement and disengagement element is disengaged, the second motor drives the vehicle, the first engagement and disengagement element is engaged, the second engagement and disengagement element is disengaged, the first motor starts the engine, or the first motor is driven by the engine to generate power.
2. A hybrid electric drive as set forth in claim 1 wherein: the first engagement and disengagement element is disengaged, the second engagement and disengagement element is engaged, and the engine is power split by the first planetary row and the second planetary row.
3. A hybrid electric drive as set forth in claim 1 wherein: the first engagement and disengagement element is engaged, the second engagement and disengagement element is engaged, and the engine directly drives the vehicle.
4. A hybrid electric drive as set forth in claim 1 wherein: the first motor, the first planet row and the second planet row are coaxially arranged with the engine; the second electric machine is disposed on an axis parallel to an axis of the engine.
5. A hybrid electric drive device as claimed in any one of claims 1 to 4, wherein: the first engaging and disengaging element and the second engaging and disengaging element are both clutches.
6. A hybrid electric drive device as claimed in any one of claims 1 to 4, wherein: the first engagement and disengagement element and the second engagement and disengagement element are both shift sleeves.
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CN103775573A (en) * 2012-10-02 2014-05-07 通用汽车环球科技运作有限责任公司 Coaxial gear system
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