CN107310374B - Hybrid power stepless speed change system - Google Patents
Hybrid power stepless speed change system Download PDFInfo
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- CN107310374B CN107310374B CN201710475793.6A CN201710475793A CN107310374B CN 107310374 B CN107310374 B CN 107310374B CN 201710475793 A CN201710475793 A CN 201710475793A CN 107310374 B CN107310374 B CN 107310374B
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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
- B60K6/383—One-way clutches or freewheel devices
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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
- B60K6/387—Actuated clutches, i.e. clutches engaged or disengaged by electric, hydraulic or mechanical actuating means
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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
- B60K6/40—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 assembly or relative disposition of components
- B60K6/405—Housings
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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
- B60K6/42—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 the architecture of the hybrid electric vehicle
- B60K6/44—Series-parallel type
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/50—Architecture of the driveline characterised by arrangement or kind of transmission units
- B60K6/54—Transmission for changing ratio
- B60K6/543—Transmission for changing ratio the transmission being a continuously variable transmission
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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
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/62—Hybrid vehicles
Abstract
The invention discloses a hybrid power stepless speed change system which comprises a motor power coupling mechanism, a starting mechanism, a stepless speed change mechanism and an oil pump, wherein one end of the motor power coupling mechanism is used for being connected with an engine, the other end of the motor power coupling mechanism is connected with the starting mechanism, and the starting mechanism is connected with the stepless speed change mechanism and the oil pump. The hybrid power stepless speed change system can realize a pure engine driving mode, a pure electric motor driving mode and a parallel driving mode of simultaneously driving the engine and the motor of the traditional hybrid system, and can realize the operation under the pure engine driving mode when high-voltage electricity is exhausted or a high-voltage electric system is protected; and the stepless speed changer is adopted to realize the stepless speed regulation function, so that the engine and the motor can always work in the optimal efficiency area, and the oil saving rate can be effectively improved.
Description
Technical Field
The invention belongs to the technical field of transmissions, and particularly relates to a hybrid power stepless speed change system.
Background
The existing hybrid transmission system comprises a motor, a power coupling mechanism and a transmission. The transmission uses a conventional multi-speed AT transmission, DCT transmission, or the like to effect the shifting. The power generated by the internal combustion engine or the motor is transmitted to the transmission, respectively, and the power is output to the wheels through the transmission, and the internal combustion engine and the motor can output the power to the transmission independently or simultaneously. Generally, a hybrid power system has a pure internal combustion engine driving mode, a pure electric motor driving mode and a mode in which an internal combustion engine and a motor are driven simultaneously. While the above modes are often achieved through hydraulic system control within the transmission.
Although the current hybrid power transmission system realizes the above driving modes and achieves the purpose of energy saving and emission reduction by switching corresponding working modes according to different working conditions, the existing hybrid power transmission has certain technical limitations, for example, a patent document with the publication number of CN101574922B discloses a hybrid power transmission composed of a motor, a clutch and an AT transmission, the hybrid power transmission realizes different driving modes through the clutch and achieves the effect of energy saving and emission reduction, but when the high voltage electricity of the hybrid power system is exhausted or the high voltage electricity system is protected, the hydraulic pump cannot work due to the failure of the motor, so that the clutch connecting the transmission and the engine cannot be combined, and the power of the engine cannot be transmitted to the transmission, so that the whole vehicle cannot work in a mode driven by the single engine. Meanwhile, the AT transmission is subjected to step-type speed change, so that the engine or the motor cannot work in the most efficient area all the time, and the efficiency of the engine and the motor cannot be exerted to the maximum extent. In addition, there is a continuing need for improvements in efficiency, structural size, weight, and cost of existing hybrid transmission systems. Therefore, a hybrid transmission system with more complete functions, higher fuel saving rate and more compact is needed.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a vehicle hybrid power stepless speed change system, and aims to realize the operation in a pure engine driving mode when high-voltage electricity is consumed or a high-voltage electric system is protected through the vehicle hybrid power stepless speed change system with a simple mechanism and improve the transmission efficiency.
In order to achieve the purpose, the invention adopts the technical scheme that: 1. a hybrid power stepless speed change system comprises a motor power coupling mechanism, a starting mechanism, a stepless speed change mechanism and an oil pump, wherein one end of the motor power coupling mechanism is used for being connected with an engine, the other end of the motor power coupling mechanism is connected with the starting mechanism, the starting mechanism is connected with the stepless speed change mechanism and the oil pump, and the oil pump is arranged between the motor power coupling mechanism and the starting mechanism;
the motor power coupling mechanism comprises a motor, a first input shaft connected with an engine, a clutch hub connected with the starting mechanism and a multi-plate friction clutch connected with the first input shaft and the clutch hub, the motor comprises a motor stator and a motor rotor, the clutch hub is fixedly connected with the motor rotor, and the multi-plate friction clutch is used for controlling the combination and the separation between the first input shaft and the clutch hub;
the starting mechanism comprises a second input shaft connected with the clutch hub and a planetary gear set connected with the second input shaft and the stepless speed change mechanism, the second input shaft is connected with the first input shaft through a one-way clutch, the one-way clutch enables the first input shaft and the second input shaft to synchronously rotate, the second input shaft is used for receiving power transmitted by the first input shaft or the clutch hub and transmitting the power to the stepless speed change mechanism through the planetary gear set, and the oil pump is connected with the second input shaft and is driven by the second input shaft to operate;
the clutch hub and the second input shaft rotate synchronously, and the one-way clutch is used for combining the first input shaft and the second input shaft into a whole when the rotating speed of the first input shaft is higher than that of the second input shaft, so that the power on the first input shaft is transmitted to the second input shaft through the one-way clutch;
the stepless speed change mechanism is a belt type stepless speed change device and comprises a third input shaft connected with the starting mechanism, a driving belt wheel arranged on the third input shaft, a driven belt wheel and a transmission belt arranged on the driving belt wheel and the driven belt wheel, wherein an output shaft of the planetary gear set is sleeved on the third input shaft, and the output shaft and the third input shaft synchronously rotate;
the clutch hub is sleeved on the second input shaft and connected with the second input shaft through a spline, and a driving shaft of the oil pump is connected with the second input shaft through a spline;
the second input shaft and the first input shaft are coaxially arranged, one end of the second input shaft is inserted into an inner hole of the first input shaft, and the second input shaft is arranged on the first input shaft through a bearing;
the starting mechanism further comprises a reverse friction clutch group and a forward friction clutch group, a gear on the second input shaft is meshed with a planetary gear in the planetary gear set, a forward execution piston is used for controlling the combination and the separation of the forward friction clutch group, the execution piston controls the combination and the separation of the reverse friction clutch group, the outer side of a gear ring of the planetary gear set is connected with the inner side of the reverse friction clutch group, the inner teeth of the gear ring of the planetary gear set are meshed with the planetary gear rotatably arranged on an output shaft, a sun gear of the planetary gear set is fixedly arranged on the second input shaft, the sun gear is coaxially arranged with the second input shaft and the output shaft, the sun gear is meshed with the planetary gear, the outer side of the reverse friction clutch group is connected with the inner side of the transmission shell, the inner side of the forward friction clutch group is connected with the output shaft, and the outer side of the forward;
an output shaft of the planetary gear set is sleeved on a third input shaft of the stepless speed change mechanism and is connected with the third input shaft through a spline, and the output shaft and the third input shaft rotate synchronously; when the forward execution piston supplies oil, the forward friction clutch group is combined, the power on the second input shaft is transmitted to the third input shaft and has the same rotating direction with the third input shaft, and a forward gear is realized;
when the reverse gear execution piston supplies oil, the reverse gear friction clutch group is combined, the power on the second input shaft is transmitted to the third input shaft, and the rotating direction of the power is opposite to that of the third input shaft, so that the reverse gear is realized;
when the forward execution piston and the reverse execution piston are not supplied with oil, no power is transmitted between the second input shaft and the third input shaft;
the hybrid power stepless speed change system transmits power generated by an engine or a motor to a starting mechanism and an oil pump through a clutch hub or a one-way clutch, the starting mechanism transmits the power to the stepless speed change mechanism, the input rotating speed and torque are adjusted through the speed change of the stepless speed change mechanism and output to a reduction gear mechanism, and finally the power is output to wheels through a differential mechanism;
when the engine is operated in an engine driving mode, the motor does not generate power, the one-way clutch enables the first input shaft and the second input shaft to be combined, the power generated by the engine is transmitted to the second input shaft to drive the second input shaft to rotate, the second input shaft and the first input shaft rotate synchronously, and meanwhile, the second input shaft drives the oil pump to enable the oil pump to work and provide hydraulic oil;
when the electric starting mode is started, the motor rotor drives the clutch hub to synchronously rotate, the clutch hub drives the second input shaft to synchronously rotate, and the second input shaft drives the oil pump to work so as to provide hydraulic oil; under the working condition, the engine can be started by combining a plurality of friction clutches to drive the first input shaft to rotate, so that the engine is started in the pure motor driving running process, and the motor and the engine can simultaneously drive the whole vehicle or the engine can independently drive the whole vehicle or the engine drives the motor to generate electricity;
in the process of speed reduction, the inertia power of the whole vehicle is transmitted to the differential mechanism, sequentially transmitted to the speed reduction gear mechanism, transmitted to the starting mechanism after being subjected to speed regulation by the stepless speed change mechanism, and finally transmitted to the motor in the motor power coupling mechanism, and the energy recovery is realized by the power generation of the motor; the rotating speed of the motor works in an efficient power generation working rotating speed area in the speed reduction process through stepless speed regulation to realize efficient energy recovery, and energy conservation and emission reduction are realized.
The hybrid power stepless speed change system further comprises a reduction gear mechanism connected with the stepless speed change mechanism and a differential connected with the reduction gear mechanism.
The hybrid power stepless speed change system can realize a pure engine driving mode, a pure electric motor driving mode and a parallel driving mode of simultaneously driving the engine and the motor of the traditional hybrid system, and can realize the operation under the pure engine driving mode when high-voltage electricity is exhausted or a high-voltage electric system is protected; the stepless speed regulation function is realized by adopting the stepless speed changer, so that the engine and the motor can always work in an optimal efficiency area, and the oil saving rate can be effectively improved; meanwhile, through the optimized structural design, the size of the whole hybrid continuously variable transmission is controlled within the range of the traditional continuously variable transmission, and the applicability of the whole vehicle arrangement is greatly improved.
Drawings
The description includes the following figures, the contents shown are respectively:
FIG. 1 is a schematic structural diagram of a hybrid continuously variable transmission system of the present invention;
FIG. 2 is a schematic view of the connection of the motor power coupling mechanism and the starting mechanism;
labeled as: 1. a first input shaft; 2. a one-way clutch; 3. a multi-plate friction clutch; 4. a motor; 5. a clutch hub; 6. an oil pump; 7. a second input shaft; 8. a planetary gear set; 9. a drive pulley; 10. a driven pulley; 11. a transmission belt; 12. a reduction gear mechanism; 13. a differential mechanism; 4a, a motor rotor; 4b, a motor stator; 4c, a cover plate; 4d, a transmission housing; 5a, a piston; 5b, a return spring; 6a, a drive shaft; 8a, a reverse friction clutch group; 8b, a forward friction clutch group; 8c, an output shaft; 8d, advancing the execution piston; 8e, a reverse gear executing piston; 9a, a third input shaft.
Detailed Description
The following detailed description of the embodiments of the present invention will be given with reference to the accompanying drawings for a purpose of helping those skilled in the art to more fully, accurately and deeply understand the concept and technical solution of the present invention and to facilitate its implementation.
As shown in fig. 1 and 2, the present invention provides a hybrid stepless speed change system, which includes a motor power coupling mechanism, a starting mechanism, a stepless speed change mechanism, an oil pump 6, a reduction gear mechanism 12 and a differential 13, wherein one end of the motor power coupling mechanism is used for being connected with an engine, the other end of the motor power coupling mechanism is connected with the starting mechanism, and the starting mechanism is connected with the stepless speed change mechanism and the oil pump 6.
Specifically, as shown in fig. 1 and 2, the motor power coupling mechanism includes a motor 4, a first input shaft 1 connected to the engine, a clutch hub 5 connected to the starting mechanism, and a multi-plate friction clutch 3 connected to the first input shaft 1 and the clutch hub 5. The first input shaft 1 is used for receiving power generated by an engine, the motor 4 comprises a motor stator 4b and a motor rotor 4a which are matched, the motor rotor 4a is arranged inside the motor stator 4b, the motor rotor 4a can rotate relative to the motor stator 4b, the motor stator 4b is fixedly arranged on a cover plate 4c, the cover plate 4c is fixedly arranged on a transmission housing 4d, and the motor and the cover plate 4c are arranged inside the transmission housing 4d, namely the motor stator 4b and the transmission housing 4d form a whole body which is fixed and does not move relatively. The first input shaft 1 is mounted on a cover plate 4c through a bearing 1a, the motor rotor 4a is fixedly mounted on a clutch hub 5, a multi-plate friction clutch 3 connects the clutch hub 5 and the first input shaft 1, and the multi-plate friction clutch 3 is used for controlling the connection and disconnection between the first input shaft 1 and the clutch hub 5. A piston group consisting of a return spring 5b and a piston 5a is mounted on the clutch hub 5, an oil pump 6 supplies hydraulic oil to the piston 5a, and the piston 5a is compressed or released to engage or disengage the multiple-plate friction clutch 3, thereby enabling engagement or disengagement of the first input shaft 1 and the clutch hub 5. The construction of the multi-plate friction clutch 3 is as known to those skilled in the art and will not be described in detail herein.
As shown in fig. 1 and 2, the oil pump 6 is disposed between the motor power coupling mechanism and the starting mechanism; the starting mechanism comprises a second input shaft 7 connected with the clutch hub 5 and a planetary gear set 8 connected with the second input shaft 7 and the continuously variable transmission mechanism, wherein the second input shaft 7 is used for receiving power transmitted by the first input shaft 1 or the clutch hub 5 and transmitting the power to the continuously variable transmission mechanism through the planetary gear set 8. The second input shaft 7 is arranged coaxially with the first input shaft 1, one end of the second input shaft 7 is inserted into the inner hole of the first input shaft 1, and the second input shaft 7 is mounted on the first input shaft 1 through a bearing 1 b. The second input shaft 7 is connected with the first input shaft 1 through the one-way clutch 2, the one-way clutch 2 enables the first input shaft 1 and the second input shaft 7 to synchronously rotate, and the oil pump 6 is connected with the second input shaft 7 and drives the oil pump 6 to operate through the second input shaft 7. The inner side of the one-way clutch 2 is connected with the outer side of the second input shaft 7 in a matching mode, the outer side of the one-way clutch 2 is connected with the inner hole of the first input shaft 1 in a matching mode, the one-way clutch 2 is used for combining the first input shaft 1 and the second input shaft 7 into a whole when the rotating speed of the first input shaft 1 is higher than that of the second input shaft 7, and therefore power on the first input shaft 1 is transmitted to the second input shaft 7 through the one-way clutch 2. The clutch hub 5 is sleeved on the second input shaft 7 and connected with the second input shaft 7 through a spline, the clutch hub 5 and the second input shaft 7 rotate synchronously, meanwhile, the driving shaft 6a of the oil pump 6 is also connected with the second input shaft 7 through a spline, and the second input shaft 7 drives the driving shaft 6a to rotate synchronously, so that the oil pump 6 is driven to operate, and hydraulic oil is provided.
As shown in fig. 1 and 2, the starting mechanism further includes a reverse friction clutch group 8a and a forward friction clutch group 8b, a gear on the second input shaft 7 is engaged with a planetary gear in the planetary gear set 8, a forward actuating piston 8d is used for controlling the engagement and disengagement of the forward friction clutch group 8b, the actuating piston controls the engagement and disengagement of the reverse friction clutch group 8a, the outer side of a ring gear of the planetary gear set 8 is connected with the inner side of the reverse friction clutch group 8a, the inner teeth of the ring gear of the planetary gear set 8 are engaged with a planetary gear rotatably mounted on an output shaft 8c (the output shaft 8c is a carrier of the planetary gear set 8), the sun gear of the planetary gear set 8 is fixedly mounted on the second input shaft 7 and is coaxially arranged with the second input shaft 7 and the output shaft 8c, the sun gear is engaged with the planetary gear, the outer side of the reverse friction clutch group 8a is connected with the inner side of the, the inner side of the forward friction clutch group 8b is connected to the output shaft 8c, and the outer side of the forward friction clutch group 8b is connected to a hub fixed to the second input shaft 7. An output shaft 8c of the planetary gear set 8 is sleeved on a third input shaft 9a of the continuously variable transmission mechanism and connected with the third input shaft 9a through a spline, and the output shaft 8c and the third input shaft 9a rotate synchronously. When the forward execution piston 8d supplies oil, the forward friction clutch group 8b is combined, the power on the second input shaft 7 is transmitted to the third input shaft 9a, and the rotation direction of the power is the same as that of the third input shaft 9a, so that a forward gear is realized; when the reverse gear executing piston 8e supplies oil, the reverse gear friction clutch group 8a is combined, the power on the second input shaft 7 is transmitted to the third input shaft 9a and is opposite to the rotating direction of the third input shaft 9a, and the reverse gear is realized. When neither the forward actuator piston 8d nor the reverse actuator piston 8e is supplied with oil, no power is transmitted between the second input shaft 7 and the third input shaft 9 a.
As shown in fig. 1, the continuously variable transmission mechanism is a belt type continuously variable transmission that includes a third input shaft 9a connected to the planetary gear set 8 of the starting mechanism and configured to receive power transmitted from the planetary gear set 8, a drive pulley 9 provided on the third input shaft 9a, a driven pulley 10, and a transmission belt 11 provided on the drive pulley 9 and the driven pulley 10 and having an endless shape. The driven pulley 10 is connected to a reduction gear mechanism 12, and the reduction gear mechanism 12 is connected to a differential 13 to transmit power.
The hybrid power stepless speed change system adopts the structure, the power generated by an engine or a motor 4 is transmitted to a starting mechanism and an oil pump 6 through a clutch hub 5 or a one-way clutch 2, the starting mechanism transmits the power to the stepless speed change mechanism, the input rotating speed and torque (namely the power) are adjusted through the speed change of the stepless speed change mechanism and are output to a reduction gear mechanism 12, and finally the power is output to wheels through a differential 13. Similarly, in the process of speed reduction, the inertia power of the whole vehicle is transmitted to the differential 13, sequentially transmitted to the speed reduction gear mechanism 12, transmitted to the starting mechanism after being subjected to speed regulation by the stepless speed change mechanism, and finally transmitted to the motor 4 in the motor power coupling mechanism, and the energy recovery is realized by generating electricity by the motor 4.
When the engine works in an engine driving mode, the motor 4 does not generate power, the engine drives the first input shaft 1 to rotate, the second input shaft 7 does not have rotating speed in the process of stopping and starting, the one-way clutch 2 combines the first input shaft 1 with the second input shaft 7, the power generated by the engine is transmitted to the second input shaft 7, the second input shaft 7 and the first input shaft 1 rotate synchronously, meanwhile, the driving shaft 6a and the second input shaft 7 rotate synchronously, the second input shaft 7 drives the oil pump 6, so that the oil pump 6 works normally to provide hydraulic oil, and the oil pump 6 provides the piston 5a with the hydraulic oil to combine the multi-plate friction clutch 3; the oil pump 6 supplies hydraulic oil to the forward actuating piston 8d or the reverse actuating piston 8e to realize the starting and running of the forward or reverse gear. Meanwhile, under the working condition, the motor rotor 4a can be driven by the engine to realize power generation, and the motor can be driven by the internal combustion engine to generate power in the processes of parking and driving.
When the motor is started, the electric starting mode is entered, at the moment, the motor rotor 4a operates to drive the clutch hub 5 to rotate, the clutch hub 5 drives the second input shaft 7 to rotate synchronously, meanwhile, the driving shaft 6a and the second input shaft 7 rotate synchronously, the second input shaft 7 drives the oil pump 6, so that the oil pump 6 works normally to provide hydraulic oil, and the oil pump 6 provides the piston 5a with the hydraulic oil to combine the multiple friction clutches 3; the oil pump 6 supplies hydraulic oil to the forward actuating piston 8d or the reverse actuating piston 8e to realize the starting and running of the forward or reverse gear. Meanwhile, under the working condition, the first input shaft 1 can be driven to rotate by combining the multiple friction clutches 3, so that the engine is started in the pure motor driving running process, and the motor and the engine can drive the whole vehicle at the same time or the engine can drive the whole vehicle independently or the engine can drive the motor to generate power.
In contrast, during the deceleration process, the inertia moment of the vehicle is transmitted to the motor through the reduction gear mechanism 12 and the belt wheel steel belt speed change mechanism, and the power generation is realized through the power generation function of the motor so as to recover the capacity of the deceleration process into the battery. Meanwhile, power is transmitted to the motor after stepless speed regulation through the belt wheel steel belt speed change mechanism, and the rotating speed of the motor works in an efficient power generation working rotating speed area in the speed reduction process through stepless speed regulation to realize efficient energy recovery. And energy conservation and emission reduction are realized.
The invention is described above with reference to the accompanying drawings. It is to be understood that the specific implementations of the invention are not limited in this respect. Various insubstantial improvements are made by adopting the method conception and the technical scheme of the invention; the present invention is not limited to the above embodiments, and can be modified in various ways.
Claims (2)
1. A hybrid continuously variable transmission system characterized in that: the engine starting device comprises a motor power coupling mechanism, a starting mechanism, a stepless speed change mechanism and an oil pump, wherein one end of the motor power coupling mechanism is used for being connected with an engine, the other end of the motor power coupling mechanism is connected with the starting mechanism, the starting mechanism is connected with the stepless speed change mechanism and the oil pump, and the oil pump is arranged between the motor power coupling mechanism and the starting mechanism;
the motor power coupling mechanism comprises a motor, a first input shaft connected with an engine, a clutch hub connected with the starting mechanism and a multi-plate friction clutch connected with the first input shaft and the clutch hub, the motor comprises a motor stator and a motor rotor, the clutch hub is fixedly connected with the motor rotor, and the multi-plate friction clutch is used for controlling the combination and the separation between the first input shaft and the clutch hub;
the starting mechanism comprises a second input shaft connected with the clutch hub and a planetary gear set connected with the second input shaft and the stepless speed change mechanism, the second input shaft is connected with the first input shaft through a one-way clutch, the one-way clutch enables the first input shaft and the second input shaft to synchronously rotate, the second input shaft is used for receiving power transmitted by the first input shaft or the clutch hub and transmitting the power to the stepless speed change mechanism through the planetary gear set, and the oil pump is connected with the second input shaft and is driven by the second input shaft to operate;
the clutch hub and the second input shaft rotate synchronously, and the one-way clutch is used for combining the first input shaft and the second input shaft into a whole when the rotating speed of the first input shaft is higher than that of the second input shaft, so that the power on the first input shaft is transmitted to the second input shaft through the one-way clutch;
the stepless speed change mechanism is a belt type stepless speed change device and comprises a third input shaft connected with the starting mechanism, a driving belt wheel arranged on the third input shaft, a driven belt wheel and a transmission belt arranged on the driving belt wheel and the driven belt wheel, wherein an output shaft of the planetary gear set is sleeved on the third input shaft, and the output shaft and the third input shaft synchronously rotate;
the clutch hub is sleeved on the second input shaft and connected with the second input shaft through a spline, and a driving shaft of the oil pump is connected with the second input shaft through a spline;
the second input shaft and the first input shaft are coaxially arranged, one end of the second input shaft is inserted into an inner hole of the first input shaft, and the second input shaft is arranged on the first input shaft through a bearing;
the starting mechanism further comprises a reverse friction clutch group and a forward friction clutch group, a gear on the second input shaft is meshed with a planetary gear in the planetary gear set, a forward execution piston is used for controlling the combination and the separation of the forward friction clutch group, the execution piston controls the combination and the separation of the reverse friction clutch group, the outer side of a gear ring of the planetary gear set is connected with the inner side of the reverse friction clutch group, the inner teeth of the gear ring of the planetary gear set are meshed with the planetary gear rotatably arranged on an output shaft, a sun gear of the planetary gear set is fixedly arranged on the second input shaft, the sun gear is coaxially arranged with the second input shaft and the output shaft, the sun gear is meshed with the planetary gear, the outer side of the reverse friction clutch group is connected with the inner side of the transmission shell, the inner side of the forward friction clutch group is connected with the output shaft, and the outer side of the forward;
an output shaft of the planetary gear set is sleeved on a third input shaft of the stepless speed change mechanism and is connected with the third input shaft through a spline, and the output shaft and the third input shaft rotate synchronously; when the forward execution piston supplies oil, the forward friction clutch group is combined, the power on the second input shaft is transmitted to the third input shaft and has the same rotating direction with the third input shaft, and a forward gear is realized;
when the reverse gear execution piston supplies oil, the reverse gear friction clutch group is combined, the power on the second input shaft is transmitted to the third input shaft, and the rotating direction of the power is opposite to that of the third input shaft, so that the reverse gear is realized;
when the forward execution piston and the reverse execution piston are not supplied with oil, no power is transmitted between the second input shaft and the third input shaft;
the hybrid power stepless speed change system transmits power generated by an engine or a motor to a starting mechanism and an oil pump through a clutch hub or a one-way clutch, the starting mechanism transmits the power to the stepless speed change mechanism, the input rotating speed and torque are adjusted through the speed change of the stepless speed change mechanism and output to a reduction gear mechanism, and finally the power is output to wheels through a differential mechanism;
when the engine is operated in an engine driving mode, the motor does not generate power, the one-way clutch enables the first input shaft and the second input shaft to be combined, the power generated by the engine is transmitted to the second input shaft to drive the second input shaft to rotate, the second input shaft and the first input shaft rotate synchronously, and meanwhile, the second input shaft drives the oil pump to enable the oil pump to work and provide hydraulic oil;
when the electric starting mode is started, the motor rotor drives the clutch hub to synchronously rotate, the clutch hub drives the second input shaft to synchronously rotate, and the second input shaft drives the oil pump to work so as to provide hydraulic oil; under the working condition, the engine can be started by combining a plurality of friction clutches to drive the first input shaft to rotate, so that the engine is started in the pure motor driving running process, and the motor and the engine can simultaneously drive the whole vehicle or the engine can independently drive the whole vehicle or the engine drives the motor to generate electricity;
in the process of speed reduction, the inertia power of the whole vehicle is transmitted to the differential mechanism, sequentially transmitted to the speed reduction gear mechanism, transmitted to the starting mechanism after being subjected to speed regulation by the stepless speed change mechanism, and finally transmitted to the motor in the motor power coupling mechanism, and the energy recovery is realized by the power generation of the motor; the rotating speed of the motor works in an efficient power generation working rotating speed area in the speed reduction process through stepless speed regulation to realize efficient energy recovery, and energy conservation and emission reduction are realized.
2. The hybrid continuously variable transmission system according to claim 1, characterized in that: the differential mechanism also comprises a reduction gear mechanism connected with the stepless speed change mechanism and a differential mechanism connected with the reduction gear mechanism.
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| CN108099582B (en) * | 2017-12-26 | 2024-02-20 | 芜湖万里扬变速器有限公司 | Hybrid stepless speed change system |
| CN108099579A (en) * | 2018-01-24 | 2018-06-01 | 芜湖万里扬变速器有限公司 | A kind of hybrid variable-speed system |
| CN108621786B (en) * | 2018-05-30 | 2024-03-22 | 湖南科技大学 | Transmission system for pure electric automobile |
| CN108891250A (en) * | 2018-09-07 | 2018-11-27 | 芜湖万里扬变速器有限公司 | The dedicated speed change system of hybrid power |
| CN109703349A (en) * | 2019-02-22 | 2019-05-03 | 芜湖万里扬变速器有限公司 | Multi-mode hybrid speed change system |
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