CN109080440B - Three-shaft planetary gear hybrid power system and vehicle comprising same - Google Patents
Three-shaft planetary gear hybrid power system and vehicle comprising same Download PDFInfo
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- CN109080440B CN109080440B CN201710444477.2A CN201710444477A CN109080440B CN 109080440 B CN109080440 B CN 109080440B CN 201710444477 A CN201710444477 A CN 201710444477A CN 109080440 B CN109080440 B CN 109080440B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
- B60K6/38—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the driveline clutches
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/22—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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- 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
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/92—Energy efficient charging or discharging systems for batteries, ultracapacitors, supercapacitors or double-layer capacitors specially adapted for 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)
Abstract
The invention provides a three-shaft planetary gear hybrid power system and a vehicle comprising the same, and aims to solve the problem that in the prior art, the energy utilization rate of a power system is low due to idle running of an auxiliary motor due to mechanical connection between the auxiliary motor and a corresponding power input end. The three-shaft planetary-row hybrid power system comprises a planetary row, wherein the planetary row is provided with three power input ends and one power output end, the power system further comprises an engine, a driving motor and an auxiliary motor which are respectively and correspondingly connected with the three power input ends in a transmission mode, the engine output shaft, the driving motor output shaft and the auxiliary motor output shaft are arranged in a different shaft mode, and an auxiliary motor clutch is arranged between the auxiliary motor output shaft and the corresponding power input end.
Description
Technical Field
The invention relates to a three-shaft planetary gear train hybrid power system and a vehicle comprising the same.
Background
The series-parallel hybrid power system has great performance advantages over the series hybrid power system and the parallel hybrid power system. The current series-parallel hybrid power system mainly adopts a planetary mechanism as a power splitting device.
One patent of the invention, publication date 2016, 11 and 16, publication number CN106114185a, discloses a hybrid power coupling transmission device, which comprises a planetary gear set, the planetary gear set has three power input ends and one power output end, the three power input ends are respectively a gear ring power input end, a planet carrier power input end and a sun gear power input end, the transmission device further comprises an engine, an auxiliary motor and a driving motor which are respectively connected with the three power input ends in a corresponding transmission manner, the engine output shaft, the auxiliary motor output shaft and the driving motor output shaft are arranged side by side, and a brake is arranged between the engine output shaft and the corresponding power input end (the planet carrier power input end in the transmission device) and between the auxiliary motor output shaft and the corresponding power input end (the sun gear power input end in the transmission device).
When the transmission device is in a pure electric mode, the driving motor provides a power source, the brake between the output shaft of the auxiliary motor and the planetary gear is opened, mechanical connection is realized between the auxiliary motor and the input end of the sun gear, the driving motor drives the gear ring in the planetary gear to rotate, the gear ring can drive the sun gear to rotate, and the sun gear rotates to drive the auxiliary motor to rotate for power generation. In the energy conversion process, part of energy is converted from electric energy into mechanical energy and finally into electric energy, so that energy loss can occur, and the energy utilization rate of the transmission device is reduced.
Disclosure of Invention
The invention aims to provide a triaxial planetary gear system for solving the problem of low energy utilization rate of a power system caused by idle running of an auxiliary motor due to mechanical connection between the auxiliary motor and a corresponding power input end in the prior art; a vehicle including the powertrain is also provided.
In order to achieve the above purpose, the technical scheme of the three-shaft planetary gear hybrid power system of the invention is as follows: the three-shaft planetary gear hybrid power system comprises a planetary gear, wherein the planetary gear is provided with three power input ends and one power output end, the power system further comprises an engine, a driving motor and an auxiliary motor which are respectively connected with the three power input ends in a corresponding transmission mode, the engine output shaft, the driving motor output shaft and the auxiliary motor output shaft are arranged in a different shaft mode, and an auxiliary motor clutch is arranged between the auxiliary motor output shaft and the corresponding power input end.
The auxiliary motor clutch is a bidirectional clutch, and the bidirectional clutch comprises three working positions, namely a connecting position for mechanically connecting the auxiliary motor with a corresponding power input end, a disengaging position for mechanically disengaging the auxiliary motor from the corresponding power input end and a locking position for locking the power input end corresponding to the auxiliary motor.
The outside of planetary row is equipped with the planetary row casing, through auxiliary motor gear meshing transmission between auxiliary motor and the corresponding power input, auxiliary motor gear locates in the planetary row casing and auxiliary motor gear shaft's one end stretches out the planetary row casing, two-way clutch is including locating auxiliary motor output epaxial first friction disc, locate auxiliary motor gear shaft in stretch out the second friction disc on the one end of planetary row casing and be fixed in the third friction disc on the planetary row casing, two-way clutch is in the connected position, first friction disc and second friction disc combine, when being in the disengaging position, three friction discs do not combine each other, when being in the locking position, second friction disc and third friction disc combine.
The planet row comprises a gear ring and a planet carrier, wherein a mounting groove is formed in one side, facing the planet carrier, of the gear ring, a planet carrier bearing with an outer ring fixed in the mounting groove is arranged in the mounting groove, and the planet carrier is fixed on an inner ring of the planet carrier bearing.
An engine clutch is arranged between the engine output shaft and the corresponding power input end.
The hybrid powertrain has the following modes of operation: 1. pure electric drive mode: the bidirectional clutch is in a disengaging position, the engine is not started, the driving motor works, and power is transmitted out through an output shaft of the driving motor; 2. hybrid mode: the bidirectional clutch is positioned at a connecting position, and the system input is an engine, an auxiliary motor and a driving motor; 3. engine direct drive mode: the bidirectional clutch is positioned at a locking position, the engine is started, and the system input is the engine; 4. braking energy recovery mode: the bidirectional clutch is in a disengaging position, the engine does not work, the driving motor provides braking force, braking energy is recovered by the driving motor, and the braking energy is converted into electric energy by the driving motor and is stored in the power battery.
The technical scheme of the vehicle is as follows: the utility model provides a vehicle, includes triaxial planet row hybrid power system, and power system includes the planet row, and the planet row has three power input and a power take off, and power system still includes engine, driving motor and the auxiliary motor that respectively correspond the transmission with three power input and link to each other, and engine output shaft, driving motor output shaft and auxiliary motor output shaft three are different the axle and are arranged, are equipped with auxiliary motor clutch between auxiliary motor output shaft and the corresponding power input.
The auxiliary motor clutch is a bidirectional clutch, and the bidirectional clutch comprises three working positions, namely a connecting position for mechanically connecting the auxiliary motor with a corresponding power input end, a disengaging position for mechanically disengaging the auxiliary motor from the corresponding power input end and a locking position for locking the power input end corresponding to the auxiliary motor.
The outside of planetary row is equipped with the planetary row casing, through auxiliary motor gear meshing transmission between auxiliary motor and the corresponding power input, auxiliary motor gear locates in the planetary row casing and auxiliary motor gear shaft's one end stretches out the planetary row casing, two-way clutch is including locating auxiliary motor output epaxial first friction disc, locate auxiliary motor gear shaft in stretch out the second friction disc on the one end of planetary row casing and be fixed in the third friction disc on the planetary row casing, two-way clutch is in the connected position, first friction disc and second friction disc combine, when being in the disengaging position, three friction discs do not combine each other, when being in the locking position, second friction disc and third friction disc combine.
The planet row comprises a gear ring and a planet carrier, wherein a mounting groove is formed in one side, facing the planet carrier, of the gear ring, a planet carrier bearing with an outer ring fixed in the mounting groove is arranged in the mounting groove, and the planet carrier is fixed on an inner ring of the planet carrier bearing.
An engine clutch is arranged between the engine output shaft and the corresponding power input end.
The hybrid powertrain has the following modes of operation: 1. pure electric drive mode: the bidirectional clutch is in a disengaging position, the engine is not started, the driving motor works, and power is transmitted out through an output shaft of the driving motor; 2. hybrid mode: the bidirectional clutch is positioned at a connecting position, and the system input is an engine, an auxiliary motor and a driving motor; 3. engine direct drive mode: the bidirectional clutch is positioned at a locking position, the engine is started, and the system input is the engine; 4. braking energy recovery mode: the bidirectional clutch is in a disengaging position, the engine does not work, the driving motor provides braking force, braking energy is recovered by the driving motor, and the braking energy is converted into electric energy by the driving motor and is stored in the power battery.
The beneficial effects of the invention are as follows: according to the three-shaft planetary gear hybrid power system provided by the invention, the clutch is arranged between the auxiliary motor and the corresponding power input end of the planetary gear, when the hybrid power system is in an electric mode, the driving motor drives the planetary gear to rotate, the power input end of the planetary gear corresponding to the auxiliary motor rotates along with the rotation, and the clutch can cut off the mechanical connection between the auxiliary motor and the corresponding power input end, so that the rotation of the power input end is not transmitted to the auxiliary motor, the auxiliary motor is not driven to idle, and further the energy conversion and the energy loss occur, and finally the energy utilization rate of the hybrid power system is improved.
Compared with the common clutch, the two-way clutch is additionally provided with a locking position, when the power system is in an engine direct-drive mode, the two-way clutch is arranged at the locking position, the power input end corresponding to the auxiliary motor is locked, the engine can not drive the power input end corresponding to the auxiliary motor to act, the output of the hybrid power system is reduced, and the energy utilization rate is further improved.
Drawings
FIG. 1 is a schematic illustration of an embodiment of a vehicle of the present invention.
Wherein 1 is the engine, 2 is the engine clutch, 3 is the planet row casing, 4 is first gear, 5 is the second gear, 6 is the ring gear, 7 is the second motor stator, 8 is the second motor rotor, 9 is the output shaft, 10 is the rear axle, 11 is the first motor stator, 12 is the first motor rotor, 13 is the third gear shaft, 14 is the planet carrier, 15 is the planet wheel, 16 is the sun gear, 17A is the left friction disc, 17B is the middle friction disc, 17C is the right friction disc, 18 is the third gear, 19 is the second motor output shaft, 20 is the planet carrier transmission shaft.
Detailed Description
Embodiments of the present invention will be further described with reference to the accompanying drawings.
In a specific embodiment of the vehicle according to the present invention, as shown in fig. 1, the vehicle comprises a three-shaft planetary gear system and a rear axle 10, the hybrid power system comprises an engine 1, a first motor, a second motor and a planetary gear housing 3, a planetary gear is arranged in the planetary gear housing 3, the planetary gear comprises a gear ring 6, a planetary gear 15, a planetary carrier 14 and a sun gear 16, and a plurality of openings are formed in the planetary gear housing 3. As shown in fig. 1, the ring gear 6 includes a protruding portion protruding rightward, the protruding portion has an inner portion forming a mounting groove, a notch of the mounting groove faces the direction in which the planet carrier 14 is located, a bearing is disposed in the mounting groove, an outer race of the bearing is clamped in the mounting groove, the planet carrier 14 is mounted on the inner race, and the planet gears 15 are rotatably mounted on the planet carrier 14. The gear ring 6 is connected with an output shaft 9, the output shaft 9 is rotatably arranged on the planet row shell 3, and a rear axle 10 is connected to the output shaft to drive the vehicle to walk. By acting on the output shaft 9 and on the mounting groove, it is ensured that the ring gear 6 and the planet carrier 14 do not move radially at the same time.
The engine 1 comprises an engine output shaft which is connected via an engine clutch 2 to a planet carrier drive shaft 20, the planet carrier 14 being mounted in a rotation-stopping manner on the planet carrier drive shaft 20. The planet row shell is provided with a bearing, the outer ring of the bearing is fixedly arranged on the planet row shell, a first gear shaft is penetrated and arranged on the inner ring of the bearing, a first gear 4 is arranged on the first gear shaft, and the planet carrier transmission shaft 20 penetrates through the first gear shaft but is in a non-matched installation relation with the first gear shaft. The first gear wheel 4 meshes with a sun gear 15 of the planetary row. An upper hole and a lower hole are formed in the planet row shell 3, bearings are arranged in the upper hole and the lower hole, a second motor output shaft 19 penetrates through the bearings in the upper hole, a second gear 5 is arranged on the second motor output shaft 19, and the second gear 5 is meshed with the gear ring 6. A third gear shaft 13 is arranged in the bearing of the lower hole, a third gear 18 is arranged outside the third gear shaft 13, and the third gear 18 is meshed with the sun gear. The third gear shaft 13 extends rightward out of the planetary gear housing, a middle friction disk 17B is mounted at the right end of the third gear shaft 13, a left friction disk 17A is disposed at a lower opening in the planetary gear housing, and a right friction disk 17C is mounted on the second motor output shaft. The middle friction plate 17B, the left friction plate 17A, and the right friction plate 17C together constitute a two-way clutch.
When the embodiment is used, the first motor drives the gear ring 6 to rotate, the second motor drives the sun gear 16 to rotate, the engine 1 drives the planet gears 15 to revolve, and the gear ring 6, the sun gear 16 and the planet carrier 14 can mutually drive to rotate. In this embodiment, the first motor is an auxiliary motor, and is mainly used for generating electricity and assisting the engine to act, and is not used as a power source alone to drive the vehicle to run. The second motor is a drive motor and can also be used as a generator in a braking energy recovery mode.
The hybrid power system of the present invention has four modes of operation:
1. purely electric drive mode
In this mode, the middle friction plate 17B is in the neutral position, and is not combined with the left friction plate 17A and the right friction plate 17C, the system input is a driving motor, and the system output is an output shaft.
The specific torque relationship is: t (T) out ＝k 2 T MG2 Wherein k is 2 For the gear ratio of the second gear 5 to the external teeth of the ring gear 6, T MG2 To drive the torque of the motor, T out Is the output torque of the output shaft. At this moment, the gear ring drives the gear ring to rotate, but the gear ring can drive the sun gear to rotate, but because the friction disc in the two-way clutch is in the intermediate position, acting force can not be transmitted to the auxiliary motor, the auxiliary motor can not be caused to rotate along with the rotation, the energy conversion is avoided, and the energy utilization rate of the system is improved.
2. Hybrid mode
In the mode, the middle friction disc is combined with the right friction disc, the system input is an engine, the auxiliary motor and the driving motor, the system output is an output shaft, and the auxiliary motor is used for carrying out auxiliary adjustment on the engine.
The specific torque relationship is: t (T) out ＝T eng k/(1+k)+k 2 T MG2 Wherein k is 2 The transmission ratio of the second gear shaft to the external teeth of the planetary gear ring is that k is the ratio of the radius of the planetary gear ring to the radius of the sun gear, T MG2 To drive the torque of the motor, T eng T is the torque of the engine out Is the output torque of the output shaft.
3. Engine direct drive mode
In this mode, the middle friction plate is combined with the left friction plate, the two-way clutch is in a locked position, the system input is the engine, the system output is the output shaft, and the engine clutch connects the engine output shaft with the corresponding power input end.
The specific torque relationship is: t (T) out ＝T eng k/(1+k), where k is the ratio of the planet gear ring radius to the sun gear radius, T eng T is the torque of the engine out Is the output torque of the output shaft. The middle friction disk and the left friction disk are combined to lock the sun gear, the engine drives the planet carrier to rotate, the gear ring is directly driven to rotate, and then power is output from the output shaft, so that the engine is directly driven.
4. Braking energy recovery mode
In this mode, the middle friction disk is in the middle position and is not combined with the left friction disk and the right friction disk, and the braking energy is recovered mainly by virtue of the second motor as the second motor is directly connected with the gear ring. In the braking energy recovery mode, the engine is not operated, the second motor becomes a generator, and braking energy is converted into electric energy to be stored in the power battery.
In actual use, since the braking time is short and the time during which the braking energy recovery mode exists is also short, if a clutch is provided between the second motor and the planetary gear set, the energy loss can be reduced in the engine direct drive mode, but the clutch between the second motor and the planetary gear set needs to be closed in a short time in the braking energy recovery mode, and the clutch defect is larger than that in the actual use. In practice, therefore, the second electric machine is directly connected to the planetary row.
According to the invention, the engine output shaft, the first motor output shaft and the second motor output shaft are arranged side by side, so that the manufacturing difficulty and the manufacturing cost increase caused by the way that the two motors are required to be made into a hollow shaft when coaxially arranged are avoided. In this embodiment, the axes of the three are parallel to each other, and in other embodiments, the three may be disposed at a certain angle. In this embodiment, the first motor is an auxiliary motor, and the second motor is a driving motor.
In this embodiment, the middle friction plate is the second friction plate, the left friction plate is the third friction plate, and the right friction plate is the first friction plate. When the middle friction disc is combined with the right friction disc, the bidirectional clutch is in a connecting position, when the middle friction disc is combined with the left friction disc, the bidirectional clutch is in a locking position, and when the middle friction disc is not combined with the left friction disc and the right friction disc, the bidirectional clutch is in a disengaging position. In this embodiment, the third gear is an auxiliary motor gear, and the third gear shaft is an auxiliary motor gear shaft.
In the specific embodiment of the three-axis planetary gear system, the structure of the three-axis planetary gear system is identical to that of the above embodiment, and the details thereof are not described herein.
Claims (8)
1. The utility model provides a triaxial formula planet row hybrid power system, includes the planet row, and the planet row has three power input and a power take off, and the power system still includes engine, driving motor and the auxiliary motor that links to each other with three power input correspondence transmission respectively, and engine output shaft, driving motor output shaft and the different axle of auxiliary motor output shaft three are arranged, its characterized in that: an auxiliary motor clutch is arranged between the output shaft of the auxiliary motor and the corresponding power input end, the auxiliary motor clutch is a bidirectional clutch, and the bidirectional clutch comprises three working positions, namely a connecting position for mechanically connecting the auxiliary motor with the corresponding power input end, a disengaging position for mechanically disengaging the auxiliary motor from the corresponding power input end and a locking position for locking the power input end corresponding to the auxiliary power motor; the hybrid powertrain has the following modes of operation: 1. pure electric drive mode: the bidirectional clutch is in a disengaging position, the engine is not started, the driving motor works, and power is transmitted out through an output shaft of the driving motor; 2. hybrid mode: the bidirectional clutch is positioned at a connecting position, and the system input is an engine, an auxiliary motor and a driving motor; 3. engine direct drive mode: the bidirectional clutch is positioned at a locking position, the engine is started, and the system input is the engine; 4. braking energy recovery mode: the bidirectional clutch is in a disengaging position, the engine does not work, the driving motor provides braking force, braking energy is recovered by the driving motor, and the braking energy is converted into electric energy by the driving motor and is stored in the power battery.
2. The three-shaft planetary gear set hybrid system according to claim 1, characterized in that: the outside of planetary row is equipped with the planetary row casing, through auxiliary motor gear meshing transmission between auxiliary motor and the corresponding power input, auxiliary motor gear locates in the planetary row casing and auxiliary motor gear shaft's one end stretches out the planetary row casing, two-way clutch is including locating auxiliary motor output epaxial first friction disc, locate auxiliary motor gear shaft in stretch out the second friction disc on the one end of planetary row casing and be fixed in the third friction disc on the planetary row casing, two-way clutch is in the connected position, first friction disc and second friction disc combine, when being in the disengaging position, three friction discs do not combine each other, when being in the locking position, second friction disc and third friction disc combine.
3. The three-shaft planetary gear set hybrid system according to claim 1, characterized in that: the planet row comprises a gear ring and a planet carrier, wherein a mounting groove is formed in one side, facing the planet carrier, of the gear ring, a planet carrier bearing with an outer ring fixed in the mounting groove is arranged in the mounting groove, and the planet carrier is fixed on an inner ring of the planet carrier bearing.
4. The three-shaft planetary gear train hybrid system according to any one of claims 1 to 3, characterized in that: an engine clutch is arranged between the engine output shaft and the corresponding power input end.
5. The utility model provides a vehicle, includes triaxial planet row hybrid power system, and power system includes the planet row, and the planet row has three power input and a power take off, and power system still includes engine, driving motor and the auxiliary motor that link to each other with three power input correspondence transmission respectively, and engine output shaft, driving motor output shaft and the different axle of auxiliary motor output shaft three are arranged, its characterized in that: an auxiliary motor clutch is arranged between an output shaft of the auxiliary motor and a corresponding power input end, the auxiliary motor clutch is a bidirectional clutch, and the bidirectional clutch comprises three working positions, namely a connecting position for mechanically connecting the auxiliary motor with the corresponding power input end, a disengaging position for mechanically disengaging the auxiliary motor from the corresponding power input end and a locking position for locking the power input end corresponding to the auxiliary motor; the hybrid powertrain has the following modes of operation: 1. pure electric drive mode: the bidirectional clutch is in a disengaging position, the engine is not started, the driving motor works, and power is transmitted out through an output shaft of the driving motor; 2. hybrid mode: the bidirectional clutch is positioned at a connecting position, and the system input is an engine, an auxiliary motor and a driving motor; 3. engine direct drive mode: the bidirectional clutch is positioned at a locking position, the engine is started, and the system input is the engine; 4. braking energy recovery mode: the bidirectional clutch is in a disengaging position, the engine does not work, the driving motor provides braking force, braking energy is recovered by the driving motor, and the braking energy is converted into electric energy by the driving motor and is stored in the power battery.
6. The vehicle according to claim 5, characterized in that: the outside of planetary row is equipped with the planetary row casing, through auxiliary motor gear meshing transmission between auxiliary motor and the corresponding power input, auxiliary motor gear locates in the planetary row casing and auxiliary motor gear shaft's one end stretches out the planetary row casing, two-way clutch is including locating auxiliary motor output epaxial first friction disc, locate auxiliary motor gear shaft in stretch out the second friction disc on the one end of planetary row casing and be fixed in the third friction disc on the planetary row casing, two-way clutch is in the connected position, first friction disc and second friction disc combine, when being in the disengaging position, three friction discs do not combine each other, when being in the locking position, second friction disc and third friction disc combine.
7. The vehicle according to claim 5, characterized in that: the planet row comprises a gear ring and a planet carrier, wherein a mounting groove is formed in one side, facing the planet carrier, of the gear ring, a planet carrier bearing with an outer ring fixed in the mounting groove is arranged in the mounting groove, and the planet carrier is fixed on an inner ring of the planet carrier bearing.
8. The vehicle according to any one of claims 5 to 7, characterized in that: an engine clutch is arranged between the engine output shaft and the corresponding power input end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710444477.2A CN109080440B (en) | 2017-06-13 | 2017-06-13 | Three-shaft planetary gear hybrid power system and vehicle comprising same |
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| JP2003011682A (en) * | 2001-07-05 | 2003-01-15 | Hitachi Unisia Automotive Ltd | Power transmission for hybrid vehicle |
| CN102848913A (en) * | 2012-09-18 | 2013-01-02 | 中国第一汽车股份有限公司 | Extended-range electric automobile power system adopting planetary transmission |
| JP2013244795A (en) * | 2012-05-24 | 2013-12-09 | Mazda Motor Corp | Hybrid system |
| CN104960407A (en) * | 2015-05-26 | 2015-10-07 | 吉林大学 | Integrated type planetary gear oil-electricity parallel serial two-mode hybrid power system |
| CN105620269A (en) * | 2016-01-19 | 2016-06-01 | 无锡商业职业技术学院 | Series-parallel type transmission system for oil-electricity hybrid electric vehicle |
| CN206884721U (en) * | 2017-06-13 | 2018-01-16 | 郑州宇通客车股份有限公司 | A kind of triple axle planet row hybrid power system and the vehicle including the dynamical system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003011682A (en) * | 2001-07-05 | 2003-01-15 | Hitachi Unisia Automotive Ltd | Power transmission for hybrid vehicle |
| JP2013244795A (en) * | 2012-05-24 | 2013-12-09 | Mazda Motor Corp | Hybrid system |
| CN102848913A (en) * | 2012-09-18 | 2013-01-02 | 中国第一汽车股份有限公司 | Extended-range electric automobile power system adopting planetary transmission |
| CN104960407A (en) * | 2015-05-26 | 2015-10-07 | 吉林大学 | Integrated type planetary gear oil-electricity parallel serial two-mode hybrid power system |
| CN105620269A (en) * | 2016-01-19 | 2016-06-01 | 无锡商业职业技术学院 | Series-parallel type transmission system for oil-electricity hybrid electric vehicle |
| CN206884721U (en) * | 2017-06-13 | 2018-01-16 | 郑州宇通客车股份有限公司 | A kind of triple axle planet row hybrid power system and the vehicle including the dynamical system |
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