CN108099576B - Transmission device for longitudinal rear-drive hybrid vehicle - Google Patents
Transmission device for longitudinal rear-drive hybrid vehicle Download PDFInfo
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- CN108099576B CN108099576B CN201711373929.9A CN201711373929A CN108099576B CN 108099576 B CN108099576 B CN 108099576B CN 201711373929 A CN201711373929 A CN 201711373929A CN 108099576 B CN108099576 B CN 108099576B
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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
- B60K6/36—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
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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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- 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 transmission device for a longitudinal rear-drive hybrid vehicle, which comprises a first electric machine (EM1), a second electric machine (EM2), an input shaft, a first brake (B1), a second brake (B2), a first clutch (C1), a second clutch (C2) and a planetary gear coupling mechanism, wherein the planetary gear coupling mechanism comprises a single planetary row (PG1) and a double planetary row (PG2), and an engine is connected with the planetary gear coupling mechanism through the first clutch (C1), the second clutch (C2), the first brake (B1), the second brake (B2), the first electric machine (EM1) and the second electric machine (EM2) so as to realize multiple pure electric and hybrid driving modes. The transmission device for the longitudinal rear-drive hybrid vehicle has a compact structure, can realize matching work with engines with different displacement volumes, and reduces the torque requirement and the manufacturing cost of the motor.
Description
Technical Field
The invention relates to a transmission device for an automobile, in particular to a transmission device for a longitudinal rear-drive hybrid vehicle.
Background
Due to the aggravation of the world environment and energy problems caused by the traditional fuel engine automobile and the adjustment of new energy automobile policies of countries in the world, all large automobile companies are actively researching and developing energy-saving and environment-friendly automobiles. Hybrid power systems have become feasible technical solutions for solving energy consumption and environmental pollution of automobiles at the present stage, and the core power transmission devices thereof have become the key points of research and development of various companies. At present, a hybrid power scheme that a plurality of single planet rows are connected in series and in parallel is mostly adopted in a longitudinal hybrid power scheme, but the oil saving efficiency is limited. Therefore, the transmission device which has higher fuel-saving efficiency of the whole vehicle and is more suitable for the longitudinal rear-drive hybrid vehicle is a main research subject at present.
Disclosure of Invention
The invention aims to provide a transmission device for a longitudinal rear-drive hybrid vehicle, which has the advantages of compact structure, realization of platform application, lower cost and capability of improving the oil saving efficiency.
The invention is realized by the following scheme:
a transmission device for a longitudinal rear-drive hybrid vehicle comprises a first motor EM1, a second motor EM2, an input shaft, a first brake B1, a second brake B2, a first clutch C1, a second clutch C2 and a planetary gear coupling mechanism, wherein the planetary gear coupling mechanism comprises a single planetary row PG1 and a double planetary row PG2, the single planetary row PG1 comprises a first sun gear S1, a first planet gear P1, a first planet carrier PC1 and a first ring gear R1, the double planetary row PG2 comprises a second sun gear S2, a second inner planet gear IP2, a second outer planet gear OP2, a second planet carrier PC2 and a second ring gear R2, the second sun gear S2 is connected with the second rotor shaft of the second motor EM2 through an inner hollow first intermediate shaft, the first sun gear S1 is connected with the first intermediate shaft 1 on the first motor EM, and the first intermediate shaft passes through the first intermediate shaft, a first planet carrier PC1 and a second planet carrier PC2 are connected to form a central shaft with a hollow interior, a first gear ring R1 and a second gear ring R2 are connected to form an output shaft, an input shaft sequentially passes through a first intermediate shaft and the central shaft, the input shaft is connected with the output shaft of the engine through a flywheel damper FW, one end of a first brake B1 and one end of a first clutch C1 are respectively connected to the central shaft, the other end of a first brake B1 is fixed to a transmission housing, the other end of a first clutch C1 is connected to the input shaft, one end of a second clutch C2 is connected to a second rotor shaft of a second motor EM2, the other end of a second clutch C2 is connected to the input shaft, one end of a second brake B2 is connected to the second intermediate shaft, and the other end of the second brake B2 is fixed to the transmission housing.
Further, the first clutch C1 is disposed inside the planetary gear coupling mechanism, and the second clutch C2 is disposed outside the planetary gear coupling mechanism. The first clutch C1 acts to transfer engine power to the planet carrier of the planetary row and the second clutch C2 acts to transfer engine power to the second rotor shaft of the second electric machine EM 2.
Further, in the single planetary row PG1, a first planet gear P1 is mounted on a first planet carrier PC1, and the first planet gear P1 is meshed with a first sun gear S1 and a first ring gear R1 respectively; in the double-planet row PG2, the second inner planet wheel IP2 and the second outer planet wheel OP2 are both mounted on the second planet carrier PC2 and the second inner planet wheel IP2 and the second outer planet wheel OP2 are meshed, the second sun wheel S2 is meshed with the second inner planet wheel IP2, and the second ring gear R2 is meshed with the second outer planet wheel OP 2.
Further, the first brake, the second brake, the first clutch and the second clutch are respectively multi-plate wet shifting elements or wedge shifting elements.
Compared with the prior art, the transmission device for the longitudinal rear-drive hybrid vehicle has the following advantages:
1. in the transmission device, a structure that a single planet row and a double planet row are matched and connected is adopted, so that the connection structure of related elements of the two planet rows can be simplified; in the invention, the first intermediate shaft passes through the second intermediate shaft, the input shaft sequentially passes through the first intermediate shaft and the central shaft, and the first clutch C1 is arranged in the planetary gear coupling mechanism, so the integration level is higher; the second clutch C2 is arranged outside the planetary gear coupling mechanism, so that the oil channel arrangement of the C2 clutch is facilitated, the first clutch C1 and the second clutch C2 are far apart, and the radial spaces of the two clutches can be optimized independently; the structure of the transmission device is suitable for a gearbox with small transmission power;
2. the transmission device can be simultaneously applied to a deep hybrid power system and an electric power plug-in hybrid power system, is a platform driving scheme, and has the oil saving efficiency of the whole vehicle up to 35-40%;
3. when the vehicle runs in the pure electric mode, the pure electric driving mode of three gears can be realized, the requirements of the pure electric driving on the speed and the torque can be met, and the optimal control on the first motor and the second motor can be realized;
4. when the vehicle runs in a hybrid power mode, the transmission device mainly adopts three power split driving modes and simultaneously has three hybrid power driving modes with fixed transmission ratios, so that the adaptability to road conditions is high, and the use requirements of fuel economy and power performance of the whole vehicle can be considered; the transmission device realizes the function of stepless speed change of the whole vehicle E-CVT under three power split driving modes, the rotating speed of the engine is decoupled from the vehicle speed at the moment, namely the rotating speed of the engine is not influenced by the driving working condition any more, the stepless speed change of the vehicle speed is realized by adjusting the two motors, and the engine always works in a high-efficiency interval with a narrow rotating speed range; the performance of the engine can be ensured within the range of the common rotating speed required by the system, and the system is more favorable for the efficient operation of the engine and avoids the operation of the engine in the operation interval with low efficiency and high emission.
Drawings
Fig. 1 is a schematic structural diagram of a transmission for a longitudinal rear-drive hybrid vehicle in embodiment 1.
Detailed Description
The invention is further illustrated by the following figures and examples, but the invention is not limited to the examples.
Example 1
A transmission device for a longitudinal rear-drive hybrid vehicle comprises a first electric machine EM1, a second electric machine EM2, an input shaft 1, a first brake B1, a second brake B2, a first clutch C1, a second clutch C2 and a planetary gear coupling mechanism 5, wherein the planetary gear coupling mechanism 5 comprises a single planetary row PG1 and a double planetary row PG2, the single planetary row PG1 comprises a first sun gear S1, a first planet gear P1, a first planet carrier PC1 and a first ring gear R1, the first planet gear P1 is mounted on the first planet carrier PC1, and the first planet gear P1 is meshed with the first sun gear S1 and the first ring gear R1 respectively; the double-planet row PG2 comprises a second sun gear S2, a second inner planet gear IP2, a second outer planet gear OP2, a second planet carrier PC2 and a second ring gear R2, wherein the second inner planet gear IP2 and the second outer planet gear OP2 are both mounted on the second planet carrier PC2, the second inner planet gear IP2 is meshed with the second outer planet gear OP2, the second sun gear S2 is meshed with the second inner planet gear IP2, and the second ring gear R2 is meshed with the second outer planet gear OP 2; the second sun gear S2 is connected with the second rotor shaft 8 of the second electric machine EM2 through a first intermediate shaft 2 with a hollow inside, the first sun gear S1 is connected with the first rotor shaft 7 of the first electric machine EM1 through a second intermediate shaft 3 with a hollow inside, the first intermediate shaft 2 passes through the second intermediate shaft 3, the first planet carrier PC1 and the second planet carrier PC2 are connected to form a central shaft 4 with a hollow inside, the first gear ring R1 and the second gear ring R2 are connected to form an output shaft 6, the input shaft 1 passes through the first intermediate shaft 2 and the central shaft 4 in sequence, the input shaft 1 is connected with the output shaft of the engine ICE through a flywheel damper FW, the first brake B1, one end of a first clutch C1 is respectively connected to the central shaft 4, the other end of a first brake B1 is fixed on the gearbox shell 9, the other end of a first clutch C1 is connected to the input shaft 1, and a first clutch C1 is arranged inside the planetary gear coupling mechanism 5; one end of a second clutch C2 is connected with the second rotor shaft 8 of the second electric machine EM2, the other end of the second clutch C2 is connected with the input shaft 1, and a second clutch C2 is arranged outside the planetary gear coupling mechanism 5; one end of a second brake B2 is connected with the second intermediate shaft 3, and the other end of the second brake B2 is fixed on the gearbox shell 9. The first brake B1, the second brake B2, the first clutch C1 and the second clutch C2 are multi-plate wet shift elements, respectively.
The power coupling device adopted by the invention is a planetary gear coupling mechanism 5 consisting of a single planetary row PG1 and a double planetary row PG2, and torques input by an engine ICE, a first electric motor EM1 and a second electric motor EM2 are coupled by the planetary gear coupling mechanism 5 and then output. During actual driving of the vehicle, the combined use of the power sources and the shifting elements (clutches, brakes) results in a plurality of different operating modes. The following describes the operation processes in the electric-only drive, the hybrid drive, the parking power generation, the braking energy recovery and the reverse mode, and the control relationship between each operation mode and the shifting element is shown in table 1, wherein good represents the open state, and ● represents the closed state.
TABLE 1 control relationship between the various operating modes of the transmission and the shifting elements
In the pure electric mode, when the first brake B1 is independently closed, the first electric machine EM1 or the second electric machine EM2 or the first electric machine EM1 and the second electric machine EM2 are adopted to drive simultaneously, and the pure electric drive mode of the first gear is defined as a pure electric drive mode with fixed transmission ratio EV-1. When the first electric machine EM1 and the second electric machine EM2 are driven simultaneously, the transmission is able to output a large drive torque, which is also a large torque output mode in the electric-only state.
When the second brake B2 is closed alone, the second electric machine EM2 is used for driving, which is defined as a second gear electric only driving mode EV-2. In this mode the first electric machine EM1 is inactive.
With the increase of the vehicle speed, the rotation speeds of the first electric machine EM1 and the second electric machine EM2 in the gears are all possibly too high, the first brake B1, the second brake B2, the first clutch C1 and the second clutch C2 are all controlled to be in an open state, the first electric machine EM1 and the second electric machine EM2 are adopted for driving simultaneously, and the mode is defined as a third gear pure electric driving mode EV-3. When the first electric machine EM1 and the second electric machine EM2 rotate at the same speed, the speeds of the planetary gear elements are also equal, and the vehicle can obtain the highest vehicle speed without causing the speeds of the first electric machine EM1 and the second electric machine EM2 to be too high.
In the hybrid drive mode, the first clutch C1 is closed and the transmission is operated in a power-split operating mode, defined as first-gear hybrid mode HEV-1. The mode is used as a main hybrid power driving mode of the whole transmission device, and can realize the function of the whole vehicle stepless speed change E-CVT, and the mode is a stepless speed change mode without a fixed transmission ratio.
The first brake B1 and the second clutch C2 are controlled to be closed, and the engine can realize coaxial transmission with the second electric machine EM2, and can output larger torque in the fixed gear ratio mode, and the first electric machine EM1 can also participate in the work, and the mode is defined as a second gear hybrid drive mode HEV-2. This mode is used when the vehicle is started as a high torque drive mode in the hybrid mode.
When the vehicle speed is high, the first electric machine EM1 can operate near zero rotating speed, the efficiency of the first electric machine EM1 is poor at the moment, the second brake B2 is controlled to be closed, the first clutch C1 is controlled to be closed, and the first electric machine EM1 is locked, so that the transmission efficiency of the transmission device under the working condition can be improved. The fixed ratio mode is defined as a third gear hybrid-drive mode, HEV-3.
The first brake B2 and the second clutch C2 are controlled to be closed, and the engine and the second electric machine EM2 can achieve coaxial rotating speed at the moment, and large torque can be output in the fixed gear ratio mode. This mode is defined as fourth gear hybrid drive mode HEV-4.
The second clutch C2 is controlled to close, while the engine is able to achieve co-axial speed with the second electric machine EM2, while the transmission is operating in a power split operating mode, defined as fifth gear hybrid drive mode HEV-5. The mode can realize the stepless speed change E-CVT function of the whole vehicle, and the mode is a stepless speed change mode without a fixed transmission ratio.
The first clutch C1 and the second clutch C2 are both controlled to be closed, and the engine ICE speed is equal to the first electric machine EM1, the second electric machine EM2 and the output shaft speed, and the planetary gear members are equal. At this time, the vehicle can obtain the highest vehicle speed without causing the first electric machine EM1 and the second electric machine EM2 to rotate excessively high themselves, which is defined as the sixth gear hybrid drive mode HEV-6.
In the parking charging mode, the vehicle is in a parking state, the second clutch C2 is controlled to be closed, and at the moment, the engine ICE drives the second motor EM2 to generate electricity to charge a vehicle battery system. This mode is defined as parking charge mode-1.
In the parking charging mode, when the vehicle is in a parking state and the first clutch C1 is controlled to be closed, the engine ICE drives the first electric machine EM1 and the second electric machine EM2 to generate electricity simultaneously through the planetary gear coupling mechanism 5. This mode is defined as parking charge mode-2.
In the braking energy recovery mode, when the vehicle slips and brakes, the first clutch C1, the second clutch C2, the first brake B1 and the second brake B2 are all controlled to be open, and the engine ICE is disconnected to recover braking energy more effectively. At the moment, the wheels reversely drive the output shaft 6, the output shaft 6 drives the first motor EM1 and the second motor EM2 to generate electricity through the planetary gear coupling mechanism 5, and a vehicle battery system is charged so as to achieve energy recovery during vehicle braking.
In the reverse mode, when the first brake B1 is controlled to be closed and the second electric machine EM2 is controlled to rotate reversely, the reverse mode of the vehicle can be realized. The first electric machine EM1 may also be controlled to rotate in reverse at this time to increase vehicle reverse torque.
Example 2
A transmission for a longitudinal rear-drive hybrid vehicle, which is similar in structure to the transmission for a longitudinal rear-drive hybrid vehicle in embodiment 1, except that: the first brake, the second brake, the first clutch and the second clutch are wedge type shifting elements respectively.
Claims (4)
1. A transmission for a longitudinal rear-drive hybrid vehicle, comprising a first electric machine (EM1), a second electric machine (EM2), an input shaft, a first brake (B1), a second brake (B2), first (C1) and second (C2) clutches and a planetary gear coupling, characterized in that: the planetary gear coupling mechanism comprises a single planetary row (PG1) and a double planetary row (PG2), wherein the single planetary row (PG1) comprises a first sun gear (S1), a first planet gear (P1), a first planet carrier (PC1) and a first ring gear (R1), the double planetary row (PG2) comprises a second sun gear (S2), a second inner planet gear (IP2), a second outer planet gear (OP2), a second planet carrier (PC2) and a second ring gear (R2), and is characterized in that: a second sun gear (S2) is connected with a second rotor shaft of a second motor (EM2) through a first intermediate shaft with a hollow inner part, a first sun gear (S1) is connected with a first rotor shaft on the first motor (EM1) through a second intermediate shaft with a hollow inner part, the first intermediate shaft passes through the second intermediate shaft, a first planet carrier (PC1) and a second planet carrier (PC2) are connected to form a central shaft with a hollow inner part, a first gear ring (R1) and a second gear ring (R2) are connected to form an output shaft, the input shaft sequentially passes through the first intermediate shaft and the central shaft, the input shaft is connected with an output shaft of an engine through a flywheel damper (FW), one ends of a first brake (B1) and a first clutch (C1) are respectively connected on the central shaft, the other end of the first brake (B1) is fixed on a gearbox shell, the other end of the first clutch (C1) is connected on the input shaft, one end of a second clutch (C2) is connected with a second rotor shaft of a second motor (EM2), the other end of the second clutch (C2) is connected with the input shaft, one end of a second brake (B2) is connected with a second intermediate shaft, and the other end of the second brake (B2) is fixed on the gearbox shell.
2. The transmission for a longitudinal rear-drive hybrid vehicle according to claim 1, characterized in that: the first clutch (C1) is disposed inside the planetary gear coupling mechanism, and the second clutch (C2) is disposed outside the planetary gear coupling mechanism.
3. The transmission for a longitudinal rear-drive hybrid vehicle according to claim 1, characterized in that: in the single planetary row (PG1), a first planet wheel (P1) is installed on a first planet carrier (PC1), and the first planet wheel (P1) is respectively meshed with a first sun gear (S1) and a first gear ring (R1); in the double planetary row (PG2), a second inner planetary gear (IP2) and a second outer planetary gear (OP2) are both arranged on a second planet carrier (PC2), the second inner planetary gear (IP2) is meshed with a second outer planetary gear (OP2), a second sun gear (s2) is meshed with a second inner planetary gear (IP2), and a second ring gear (R2) is meshed with a second outer planetary gear (OP 2).
4. A transmission for a longitudinal rear-drive hybrid vehicle according to any one of claims 1 to 3, characterized in that: the first brake, the second brake, the first clutch and the second clutch are respectively a multi-plate wet shifting element or a wedge shifting element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711373929.9A CN108099576B (en) | 2017-12-19 | 2017-12-19 | Transmission device for longitudinal rear-drive hybrid vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711373929.9A CN108099576B (en) | 2017-12-19 | 2017-12-19 | Transmission device for longitudinal rear-drive hybrid vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN108099576A CN108099576A (en) | 2018-06-01 |
| CN108099576B true CN108099576B (en) | 2020-01-21 |
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|---|---|---|---|
| CN201711373929.9A Active CN108099576B (en) | 2017-12-19 | 2017-12-19 | Transmission device for longitudinal rear-drive hybrid vehicle |
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| CN107901748B (en) * | 2017-12-19 | 2019-10-29 | 无锡明恒混合动力技术有限公司 | A kind of transmission device for longitudinal rear-guard hybrid vehicle |
| CN108790776A (en) * | 2018-07-20 | 2018-11-13 | 无锡明恒混合动力技术有限公司 | A kind of mixed power automobile driving device |
| CN109080438B (en) * | 2018-08-29 | 2020-04-03 | 北京理工大学 | Hybrid power transmission device of commercial vehicle |
| CN111231647A (en) * | 2018-11-28 | 2020-06-05 | 郑州宇通客车股份有限公司 | Planet series-parallel system and vehicle |
| CN109484155B (en) * | 2018-12-17 | 2023-09-05 | 北京航空航天大学 | Double-motor double-planet-row multi-mode electromechanical coupling transmission device |
| CN109866603A (en) * | 2019-03-26 | 2019-06-11 | 王佩英 | Hybrid transmissions |
| CN109941092A (en) * | 2019-04-19 | 2019-06-28 | 广州市新域动力技术有限公司 | Bi-motor hybrid engine planet row power assembly |
| CN112440723B (en) * | 2019-08-30 | 2022-04-15 | 比亚迪股份有限公司 | Hybrid power device and vehicle |
| CN112440721B (en) * | 2019-08-30 | 2022-04-15 | 比亚迪股份有限公司 | Hybrid power device and vehicle |
| CN112440719B (en) * | 2019-08-30 | 2022-05-13 | 比亚迪股份有限公司 | Hybrid power device and vehicle |
| CN111572534B (en) * | 2020-04-03 | 2022-11-04 | 江西鼎盛新材料科技有限公司 | Power-split type hybrid power truck brake safety protection mode switching control method |
| CN113147348B (en) * | 2021-04-20 | 2023-04-14 | 一汽解放汽车有限公司 | Hybrid power driving system and hybrid power vehicle |
| CN113400920A (en) * | 2021-06-30 | 2021-09-17 | 东风汽车股份有限公司 | Integrated double-planet-row longitudinal hybrid power device and operation method thereof |
| CN113815400B (en) * | 2021-08-25 | 2023-02-28 | 东风汽车股份有限公司 | Hybrid power device capable of realizing two output ends of planet row |
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| US8337352B2 (en) * | 2010-06-22 | 2012-12-25 | Oshkosh Corporation | Electromechanical variable transmission |
| US9028362B2 (en) * | 2011-02-01 | 2015-05-12 | Jing He | Powertrain and method for a kinetic hybrid vehicle |
| KR101427959B1 (en) * | 2012-12-12 | 2014-08-11 | 현대자동차 주식회사 | Power transmission system of hybrid electric vehicle |
| CN205365218U (en) * | 2016-01-26 | 2016-07-06 | 李冰洋 | Hybrid transmission of platformization |
| CN106976389B (en) * | 2017-02-14 | 2019-03-26 | 北京理工大学 | Double mode hybrid transmissions |
| CN106882032B (en) * | 2017-02-14 | 2019-03-26 | 北京理工大学 | Front drive vehicle double mode hybrid transmissions |
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