CN115339310A - Automobile shunting type hybrid power mechanism - Google Patents
Automobile shunting type hybrid power mechanism Download PDFInfo
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- CN115339310A CN115339310A CN202110479329.0A CN202110479329A CN115339310A CN 115339310 A CN115339310 A CN 115339310A CN 202110479329 A CN202110479329 A CN 202110479329A CN 115339310 A CN115339310 A CN 115339310A
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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
- 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 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 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 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 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
- 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 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 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
- B60K6/26—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the motors or the generators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units
- 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 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 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 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
- 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 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 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 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
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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
- 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 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 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
- B60K6/48—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
- 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 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
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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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Structure Of Transmissions (AREA)
Abstract
The invention discloses an automobile shunting type hybrid power mechanism which comprises an engine, a first motor, a second motor, a planetary gear mechanism, an input shaft, a synchronizer mechanism, a one-way brake, an output gear and an intermediate gear, wherein the input shaft is connected with a planetary frame of the planetary gear mechanism and is driven by the engine to rotate, the synchronizer mechanism is connected with the input shaft and is used for braking a sun gear of the planetary gear mechanism, the one-way brake is used for braking the planetary frame of the planetary gear mechanism, the output gear is connected with a gear ring of the planetary gear mechanism, the intermediate gear is connected with a rotor of the second motor, a rotor of the first motor is connected with the sun gear of the planetary gear mechanism, and the intermediate gear and the output gear are meshed with a primary driven gear. According to the automobile split-flow type hybrid power mechanism, the synchronizer mechanism is arranged, the engine drives two gears, electric driving is not needed, the power transmission efficiency is improved, and the cost is reduced.
Description
Technical Field
The invention belongs to the technical field of automobile new energy transmission, and particularly relates to a split-flow type hybrid power mechanism of an automobile.
Background
In the related art, for example, patent document CN108237893A discloses a hybrid vehicle, which has the following disadvantages:
in the middle-high speed running process, the engine and the motor are coupled through the planetary mechanism, two power flows are converged and then power is output, one part of the power flow is generated, stored, taken and electrically driven by the motor, the efficiency is very low, and the oil consumption is high.
Further, as disclosed in patent publication No. CN111572328A, there is a hybrid vehicle drive device which has disadvantages in that:
in the process of medium-high speed running of a hybrid vehicle, an engine can be formed by adopting a B1 brake and a C1 clutch to drive two gears, and electric drive power flow is not adopted.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides an automobile split-flow type hybrid power mechanism, aiming at improving the power transmission efficiency.
In order to achieve the purpose, the invention adopts the technical scheme that: the utility model provides an automobile shunting hybrid power mechanism, includes engine, first motor, second motor, planetary gear mechanism, is connected and carries out the input shaft that rotates by engine drive with planetary gear mechanism's planet carrier, with input shaft connection just is used for the braking synchronizer mechanism of planetary gear mechanism's sun gear, be used for the braking planetary gear mechanism's planet carrier one-way brake, with the output gear that planetary gear mechanism's ring gear is connected and with the intermediate gear that the rotor of second motor is connected, the rotor of first motor with planetary gear mechanism's sun gear is connected, and intermediate gear and output gear mesh with one-level driven gear mutually.
The output shaft of the engine is connected with the driving end of the dual-mass flywheel, the driven end of the dual-mass flywheel is fixedly connected with the input shaft, the input shaft is fixedly connected with the driving end of the one-way brake and the planet carrier, and the driven end of the one-way brake is connected with the shell.
The rotor of the first electric machine is located between the synchronizer mechanism and the output gear, and the ring gear is located between the one-way brake and the output gear.
The synchronizer mechanism is provided to be switchable between a disengaged state, a first engaged state, and a second engaged state.
The synchronizer mechanism comprises a sliding gear sleeve, a spline hub, a first joint gear and a second joint gear, the spline hub is connected with a sun gear of the planetary gear mechanism, the first joint gear is arranged on the input shaft, and the second joint gear is arranged on the shell.
When the running direction of the first motor is opposite to that of the engine, the synchronizer mechanism is in a separated state, a rotor of the first motor and the sun gear can rotate, and the first motor absorbs power; the running direction of the first motor is the same as that of the engine, the sliding gear sleeve is meshed with the spline hub and the first joint gear, the synchronizer mechanism is in a first joint state, a rotor, an input shaft and a sun gear of the first motor can synchronously rotate, and power generated by the first motor is coupled with power generated by the engine; when the synchronizer mechanism is in the second joint state, the sliding gear sleeve is meshed with the spline hub and the second joint gear, and the synchronizer mechanism brakes the sun gear.
The output gear is rotatably arranged on the shell, the primary driven gear is coaxially and fixedly connected with the secondary driving gear, the diameter of the primary driven gear is larger than that of the secondary driving gear, the primary driven gear and the secondary driving gear are arranged on the same shaft, the shaft is supported on the shell through a bearing, the diameter of the intermediate gear is smaller than that of the primary driven gear, the diameter of the secondary driven gear is larger than that of the secondary driving gear, and the secondary driven gear is fixed on a shell of the differential mechanism.
According to the automobile split-flow type hybrid power mechanism, the synchronizer mechanism is arranged, the engine drives two gears, electric driving is not needed, the power transmission efficiency is improved, and the cost is reduced.
Drawings
The present specification includes the following figures, which show the contents:
FIG. 1 is a schematic diagram of a split-flow hybrid mechanism for an automobile according to the present invention;
labeled as:
1. an engine; 2. a dual mass flywheel; 3. an output shaft of the engine; 4. a synchronizer mechanism; 5. a first motor; 6. an output gear; 7. a ring gear; 8. a one-way brake; 9. a planet carrier; 10. a sun gear; 11. an intermediate gear; 12. a second motor; 13. a primary driven gear; 14. a secondary drive gear; 15. a secondary driven gear; 16. a differential mechanism; 17. a vehicle wheel; 18. an 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.
It should be noted that, in the following embodiments, the "first" and "second" do not represent absolute differences in structure and/or function, nor represent a sequential execution order, but merely for convenience of description.
As shown in fig. 1, the present invention provides a split-flow hybrid power mechanism for an automobile, which includes a housing, an engine 1, a first motor 5, a second motor 12, a planetary gear mechanism, an input shaft 18 connected to a carrier 9 of the planetary gear mechanism and driven by the engine 1 to rotate, a synchronizer mechanism 4 connected to the input shaft 18 and braking a sun gear 10 of the planetary gear mechanism, a one-way brake 8 braking the carrier 9 of the planetary gear mechanism, an output gear 6 connected to a ring gear 7 of the planetary gear mechanism, and an intermediate gear 11 connected to a rotor of the second motor 12, wherein the rotor of the first motor 5 is connected to the sun gear 10 of the planetary gear mechanism, and the intermediate gear 11 and the output gear 6 are engaged with a primary driven gear 13. The secondary driven gear 15 is meshed with the secondary driving gear 14, the secondary driven gear 15 is fixedly connected with the differential, the secondary driving gear 14 is coaxially and fixedly connected with the primary driven gear 13, the secondary driving gear and the primary driven gear rotate synchronously, and the differential is used for outputting power to a half shaft of a vehicle, so that the vehicle wheels are driven to rotate, and driving force for driving the vehicle to run is generated.
Specifically, as shown in fig. 1, the planetary gear mechanism mainly includes a planet carrier 9, a planetary gear provided on the planet carrier 9, a sun gear 10 meshed with the planetary gear, and a ring gear 7 meshed with the planetary gear, an output shaft of the engine 1 is connected to an active end of the dual mass flywheel 2, a passive end of the dual mass flywheel 2 is fixedly connected to one end of an input shaft 18, the other end of the input shaft 18 is fixedly connected to the planet carrier 9, the planet carrier 9 is fixedly connected to an active end of the one-way brake 8, and the passive end of the dual mass flywheel 2 is connected to the planet carrier 9 through the input shaft 18 to rotate coaxially.
As shown in fig. 1, the rotor of the first electric motor 5 is connected to the synchronizer mechanism 4, and the rotor of the first electric motor 5 is fixedly connected to the sun gear 10. When the operation direction of the first motor 5 is opposite to the operation direction of the engine 1, the synchronizer mechanism 4 is in a separated state, the rotor of the first motor 5 and the sun gear 10 can rotate, and the first motor 5 absorbs power; the operating direction of the first electric machine 5 is the same as the operating direction of the engine 1, the synchronizer mechanism 4 is in the first engaged state, the rotor of the first electric machine 5, the input shaft 18, and the sun gear 10 can rotate synchronously, and the power generated by the first electric machine 5 is coupled with the power generated by the engine 1.
When the synchronizer mechanism 4 is in the second engaged state, the synchronizer mechanism 4 brakes the sun gear 10, the sun gear 10 is fixed, the sun gear 10 is not rotatable, the rotor of the first electric motor 5 is also not rotatable, and the input shaft 18 is rotatable. Thus, the synchronizer mechanism 4 is provided to be switchable between a disengaged state, a first engaged state, and a second engaged state, and controls the rotation of the sun gear 10 and the rotor of the first motor 5, and the rotation direction.
The synchronizer mechanism 4 comprises a sliding gear sleeve, a synchronizing ring, a spline hub, a first joint gear and a second joint gear, the spline hub is coaxially and fixedly connected with the sun gear 10 of the planetary gear mechanism, the first joint gear is coaxially and fixedly connected with the input shaft 18, the second joint gear is fixedly arranged on the shell, the synchronizing ring is arranged between the spline hub and the first joint gear, and the synchronizing ring is also arranged between the spline hub and the second joint gear. The shifting fork is inserted into a shifting fork groove arranged on the sliding gear sleeve and is connected with a driving mechanism, and the driving mechanism is used for driving the shifting fork to swing so that the shifting fork can drive the sliding gear sleeve to linearly move along the axial direction. The driving mechanism has various forms, for example, the driving mechanism can be connected with a transmission mechanism by a motor, the transmission mechanism is connected with the motor and a shifting fork, the transmission mechanism can be a lead screw nut mechanism, a lead screw of the lead screw nut mechanism is connected with an output shaft of the motor, and a nut of the lead screw nut mechanism is connected with the shifting fork.
When the synchronizer mechanism 4 is switched to the first engaged state, the sliding sleeve is engaged with the spline hub and the first engaging gear, and the rotor of the first electric motor 5, the input shaft 18, and the sun gear 10 can be rotated in synchronization. When the synchronizer mechanism 4 is switched to the second engagement state, the sliding sleeve engages with the spline hub and the second engagement gear, the synchronizer mechanism 4 brakes the sun gear 10, the sun gear 10 cannot rotate, and the input shaft 18 can rotate. When the synchronizer mechanism 4 is switched to the disengaged state, the sliding sleeve is engaged with only the spline hub and is not engaged with the first engaging gear and the second engaging gear, and the rotor of the first motor 5 and the sun gear 10 can rotate.
As shown in fig. 1, the input shaft 18 is fixedly connected to the carrier 9 at the center of the carrier 9, the input shaft 18 penetrates through the center of the sun gear 10, the rotor of the first electric machine 5 is located between the synchronizer mechanism 4 and the sun gear 10 in the axial direction of the input shaft 18, and the ring gear 7 is located between the synchronizer mechanism 4 and the output gear 6. Compared with the scheme that other motors are arranged on the opposite side of the engine 1, the arrangement mode has the advantages that the input shaft 18 connected with the engine 1 is slender, has certain elasticity and vibration damping effect and is equivalent to a vibration damper, the vibration value transmitted to a transmission by the engine is reduced, and the vibration and the noise can be avoided.
As shown in fig. 1, the output gear 6 is rotatably disposed on the housing, the output gear 6 is coaxially and fixedly connected with the gear ring 7, the output gear 6 and the primary driven gear 13 are cylindrical gears, and the output gear 6 is engaged with the primary driven gear 13 to output hybrid power; the one-level driven gear 13 is coaxially and fixedly connected with the second-level driving gear 14, the diameter of the one-level driven gear 13 is larger than that of the second-level driving gear 14, the one-level driven gear 13 and the second-level driving gear 14 are arranged on the same shaft, and the shaft is supported on the shell through a bearing. The rotor of the second motor 12 is connected with the intermediate gear 11, the intermediate gear 11 is meshed with the first-stage driven gear 13, and the diameter of the intermediate gear 11 is smaller than that of the first-stage driven gear 13. The diameter of the secondary driven gear 15 is larger than that of the secondary driving gear 14, the secondary driven gear 15 is fixed on a shell of a differential, and the differential is connected with wheels on two sides to output power to drive a vehicle to run.
When the automobile split-flow type hybrid power mechanism works in a two-motor common acceleration driving mode, which is mainly used for stopping the operation of the engine 1, operating the first motor 5 and the second motor 12, braking the planet carrier 9 by the one-way brake 8, changing the planetary gear mechanism into a reverse speed reducer, reducing the transmission ratio of the planetary gear mechanism to be less than 1, rotating the first motor 5 in the direction opposite to the operation direction when the engine 1 is operated, rotating the sun gear 10 by the first motor 5, rotating the sun gear 10 in the direction opposite to the rotation direction of the ring gear 7, sequentially transmitting the power generated by the first motor 5 to the primary driven gear 13 through the planetary gear mechanism and the output gear 6, simultaneously driving the intermediate gear 11 to rotate by the second motor 12, transmitting the power generated by the second motor 12 to the primary driven gear 13 through the intermediate gear 11, driving the automobile to run, and driving the automobile to start and run at a low speed under the condition that the SOC electric quantity meets the requirement. The first electric machine 5 and the second electric machine 12 can absorb energy when the vehicle is decelerating.
When the automobile shunting type hybrid power mechanism works in an engine and motor shunting driving mode, the mode is mainly used for charging a storage battery, driving the automobile at a constant speed, climbing a small slope and slowly accelerating and decelerating at a medium and high speed. In this mode, the engine 1 and the first electric machine 5 are speed-coupled to regulate speed and generate electricity through the planetary gear mechanism, and the second electric machine 12 is torque-coupled through the intermediate gear 11; the torque adjustment mode is that when the load is greater than the torque at the lowest oil consumption point of the engine (according to a map of the engine, namely a contour line of oil consumption of the engine is drawn by taking the rotating speed of the engine and the torque of the engine as coordinate axes, and the torque corresponding to the lowest oil consumption point of the engine is obtained), the second motor 12 is a motor, the second motor 12 outputs the torque, and the torque output by the second motor 12 compensates the torque which is greater than the torque of the engine; when the load is less than the engine minimum point torque, the second electric machine 12 is a generator, and the absorbed torque compensates for the portion of the torque less than the engine torque.
When the engine works in an engine and motor split driving mode, the engine runs at a rotating speed with the corresponding oil consumption as the lowest point, and the engine 1 drives the planet carrier 9 to rotate to output power; the first electric machine 5 operates in the direction opposite to the direction of operation of the engine 1, the first electric machine 5 acting as a generator; the power generated by the engine 1 is transmitted to the primary driven gear 13 through the planetary gear mechanism and the output gear 6 in sequence, and the vehicle is driven to run.
When the engine and motor shunt driving mode is operated, the rotating speed of the engine 1 is fixed and the engine operates in the minimum oil-saving working condition with minimum oil consumption, the engine 1 drives the planet carrier 9 to rotate at a certain oil-saving rotating speed, the first motor 5 operates, the operating direction of the first motor 5 is the same as or opposite to that of the engine 1, the first motor 5 drives the sun gear 10 to rotate, and finally the integrated member formed by the gear ring 7 and the output gear 6 rotates within a negative value range and a positive value range, namely, the first motor 5 can ensure that when the engine 1 operates within the oil-saving rotating speed range, the output rotating speed can be adjusted, so that wheels can move forwards or backwards, and the requirement of the highest driving speed of the vehicle is met at one level. The first electric machine 5 is sometimes a motor and sometimes a generator during the speed regulation. The second electric machine 12 drives the main reducer to adjust the torque demand, and when the vehicle load requires that the engine torque is greater than the oil saving point, the second electric machine 12 is an electric motor to compensate the torque greater than the oil saving point of the engine; when the vehicle load requires an engine torque less than the throttle, the second electric machine 12 is a generator, absorbing torque, compensating for the torque less than the throttle of the engine.
When the split-flow type hybrid power mechanism of the automobile works in a mode that the engine and the two motors are driven in parallel and the mode is a medium-speed gear mode, the mode is mainly used for medium-speed cruising running of the automobile on a national road. In this mode, the engine 1, the first motor 5, and the second motor 12 are operated, the sun gear 10 of the planetary gear mechanism is rotated in synchronization with the input shaft 18 and the carrier 9 by the synchronizer mechanism 4, the transmission ratio of the planetary gear mechanism is 1, the power generated by the engine 1 and the first motor 5 is transmitted to the primary driven gear 13 through the planetary gear mechanism and the output gear 6 in sequence, and the power generated by the second motor 12 is transmitted to the primary driven gear 13 through the intermediate gear 11, whereby the vehicle is driven to travel. Also in this mode, if the main power flow is the engine mechanical power flow, the transmission efficiency is high, and the requirement of high efficiency in medium speed steady state running is met.
When operating in a medium-speed mode with the engine and the two electric machines driven in parallel, the synchronizer mechanism 4 is in the first engaged state, and the rotor of the first electric machine 5, the input shaft 18, the sun gear 10 and the carrier 9 can rotate synchronously, so that the transmission ratio of the planetary gear mechanism is 1.
When the vehicle works in a mode that the engine and the two motors are driven in parallel and the speed is in a medium gear mode, the second motor 12 is still responsible for torque adjustment, and when the vehicle load requires that the torque of the engine is larger than the oil saving point, the second motor 12 is a motor and compensates the torque larger than the oil saving point of the engine; when the vehicle load requires engine torque less than the throttle point, the second electric machine 12 is a generator, absorbing torque, compensating for torque less than the throttle point of the engine.
The split hybrid power mechanism of the embodiment is mainly used when the vehicle runs at high speed and cruising in a high-speed gear mode when the engine and the second motor 12 are driven in parallel. In this mode, the engine 1 and the second motor 12 are operated, the first motor 5 is not operated, the sun gear 10 of the planetary gear mechanism is braked by the synchronizer mechanism 4, the sun gear 10 is not rotated, the planetary gear mechanism becomes a speed increasing gear, the gear ratio of the planetary gear mechanism is greater than 1, and the power generated by the engine 1 is transmitted to the primary driven gear 13 through the planetary gear mechanism and the output gear 6 in order to drive the vehicle to travel. At this time, the main power flow is mechanical power flow, the transmission efficiency is high, and the requirement of high efficiency in high-speed steady-state running is met.
When the engine and the second electric machine 12 are driven in parallel and the high-speed mode is used, the synchronizer mechanism 4 is in the second engagement state, the sun gear 10 and the housing are locked into a whole by the synchronizer mechanism 4, the sun gear 10 cannot rotate, and the planet carrier 9 can rotate, so that the transmission ratio of the planetary gear mechanism is 1.
When the vehicle works in a high-speed mode in which the engine and the second motor 12 are driven in parallel, the second motor 12 is also responsible for torque adjustment, when the load is greater than the torque at the lowest point of oil consumption of the engine, the second motor 12 is an electric motor, the second motor 12 outputs torque, the power generated by the second motor 12 is transmitted to the primary driven gear 13 through the intermediate gear 11, and the engine 1 and the second motor 12 drive the vehicle to run together; when the load is less than the engine minimum point torque, the second electric machine 12 is a generator.
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 (7)
1. The utility model provides an automobile shunting hybrid power mechanism, includes engine, first motor, second motor, planetary gear mechanism and is connected and carries out the input shaft rotatory by engine drive with planetary gear mechanism's planet carrier, its characterized in that: the planetary gear mechanism comprises a planetary gear mechanism, a gear ring, a first motor, a second motor, a synchronizer mechanism, a one-way brake, an output gear and an intermediate gear, wherein the planetary gear mechanism is connected with the input shaft and used for braking a sun gear of the planetary gear mechanism, the one-way brake is used for braking a planet carrier of the planetary gear mechanism, the output gear is connected with the gear ring of the planetary gear mechanism, the intermediate gear is connected with a rotor of the second motor, the rotor of the first motor is connected with the sun gear of the planetary gear mechanism, and the intermediate gear and the output gear are meshed with a primary driven gear.
2. The automotive split hybrid powertrain of claim 1, wherein: the output shaft of the engine is connected with the driving end of the dual-mass flywheel, the driven end of the dual-mass flywheel is fixedly connected with the input shaft, the input shaft is fixedly connected with the driving end of the one-way brake and the planet carrier, and the driven end of the one-way brake is connected with the shell.
3. The automotive split hybrid powertrain according to claim 1 or 2, wherein: the rotor of the first electric machine is located between the synchronizer mechanism and the output gear, and the ring gear is located between the one-way brake and the output gear.
4. The automotive split hybrid powertrain according to claim 1 or 2, wherein: the synchronizer mechanism is provided to be switchable between a disengaged state, a first engaged state and a second engaged state.
5. The automotive split hybrid powertrain of claim 4, wherein: the synchronizer mechanism comprises a sliding gear sleeve, a spline hub, a first joint gear and a second joint gear, the spline hub is connected with a sun gear of the planetary gear mechanism, the first joint gear is arranged on the input shaft, and the second joint gear is arranged on the shell.
6. The automotive split hybrid powertrain of claim 5, wherein: when the running direction of the first motor is opposite to that of the engine, the synchronizer mechanism is in a separated state, a rotor of the first motor and the sun gear can rotate, and the first motor absorbs power; the running direction of the first motor is the same as that of the engine, the sliding gear sleeve is meshed with the spline hub and the first joint gear, the synchronizer mechanism is in a first joint state, a rotor, an input shaft and a sun gear of the first motor can synchronously rotate, and power generated by the first motor is coupled with power generated by the engine; when the synchronizer mechanism is in the second joint state, the sliding gear sleeve is meshed with the spline hub and the second joint gear, and the synchronizer mechanism brakes the sun gear.
7. The automotive split hybrid powertrain according to any one of claims 1 to 6, wherein: the output gear is rotatably arranged on the shell, the primary driven gear is coaxially and fixedly connected with the secondary driving gear, the diameter of the primary driven gear is larger than that of the secondary driving gear, the primary driven gear and the secondary driving gear are arranged on the same shaft, the shaft is supported on the shell through a bearing, the diameter of the intermediate gear is smaller than that of the primary driven gear, the diameter of the secondary driven gear is larger than that of the secondary driving gear, and the secondary driven gear is fixed on a shell of the differential mechanism.
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| CN202110479329.0A CN115339310A (en) | 2021-04-30 | 2021-04-30 | Automobile shunting type hybrid power mechanism |
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| CN118457201A (en) * | 2024-07-09 | 2024-08-09 | 凯晟动力技术（嘉兴）有限公司 | New energy automobile hybrid power transmission device |
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