CN115071403A - Double-motor two-gear planet row hybrid transmission and transmission method thereof - Google Patents
Double-motor two-gear planet row hybrid transmission and transmission method thereof Download PDFInfo
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- CN115071403A CN115071403A CN202210615637.6A CN202210615637A CN115071403A CN 115071403 A CN115071403 A CN 115071403A CN 202210615637 A CN202210615637 A CN 202210615637A CN 115071403 A CN115071403 A CN 115071403A
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- 239000000446 fuel Substances 0.000 abstract description 5
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- 230000009467 reduction Effects 0.000 description 4
- 238000004134 energy conservation Methods 0.000 description 2
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
- B60K6/26—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the motors or the generators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
- B60K6/36—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings
- B60K6/365—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings with the gears having orbital motion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/42—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
- B60K6/547—Transmission for changing ratio the transmission being a stepped gearing
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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
A double-motor two-gear planet row hybrid transmission and a transmission method thereof belong to the technical field of automobile hybrid transmissions. The input end of the input shaft is connected with a power system of an engine, the output end of the input shaft is connected with a second motor through a second planet row, the input shaft is connected with the input end of a middle shaft through a clutch, the middle shaft is connected with a first motor through a first planet row, the output end of the middle shaft is connected with the input end of an output shaft, the output end of the output shaft is in transmission connection with a rear axle of a vehicle, the output shaft is connected with the first planet row, the first planet row is connected with a first brake and a second brake, and the second motor, the first brake, the second brake and the second planet row are all connected with a transmission shell. The invention has the advantages of low cost, simple structure, compact layout, good complete machine carrying performance and simple control strategy, improves the comprehensive efficiency of a power system, reduces the fuel consumption rate, saves energy, reduces emission, meets the development requirement of the market, and realizes low cost.
Description
Technical Field
The invention relates to a double-motor two-gear planet row hybrid transmission and a transmission method thereof, belonging to the technical field of automobile hybrid transmissions.
Background
Along with the continuous improvement of the consciousness of energy conservation and emission reduction of people, the conventional power automobile is limited by the structure and is difficult to meet the requirements of people, and the hybrid power automobile as a novel automobile power type has the technology and the market in a vigorous development stage, wherein the hybrid power automobile driving device occupies an extremely important position.
The conventional hybrid power transmission is limited by a structure, has a single structure, depends on a motor for adjusting the speed and the load capacity, has high requirements on the level of the motor, and is difficult to control the cost; the mixing mode is single, the gear is single, the comprehensive oil saving rate is low, and the comprehensive cost is high.
Disclosure of Invention
In order to solve the problems in the background art, the invention provides a double-motor two-gear planetary gear row hybrid transmission and a transmission method thereof.
The invention adopts the following technical scheme: a double-motor two-gear planet row hybrid transmission comprises an input shaft, an intermediate shaft, an output shaft, a clutch, a second motor, a first motor, a transmission shell, a first brake, a second brake, a first planet row and a second planet row; the input end of the input shaft is connected with a power system of an engine, the output end of the input shaft is connected with a second motor through a second planetary row, the input shaft is connected with the input end of a middle shaft through a clutch, the middle shaft is connected with a first motor through a first planetary row, the output end of the middle shaft is connected with the input end of an output shaft, the output end of the output shaft is in transmission connection with a rear axle of a vehicle, the output shaft is connected with a first planetary row, the first planetary row is connected with a first brake and a second brake, and the second motor, the first brake, the second brake and the second planetary row are all connected with a transmission shell.
A method of operating a two-motor, two-speed planetary-row hybrid transmission in an electric-only mode with one gear, the method comprising the steps of:
s1: enabling the engine and the second motor to be in a non-working state, enabling the clutch and the second brake to be in a separation state, enabling the first brake to be in a combination state, and enabling the first motor to be in a working state;
s2: starting the first motor to drive the first sun gear to rotate;
s3: the sun wheel drives the planet wheel I to rotate;
s4: the planet wheel I drives the planet carrier I to rotate;
s5: the planet carrier drives the output shaft to rotate, and power is output.
A pure electric mode two-gear transmission method of a double-motor two-gear planet row hybrid transmission comprises the following steps:
s1: enabling the engine and the second motor to be in a non-working state, enabling the clutch and the first brake to be in a separation state, enabling the second brake to be in a combination state, and enabling the first motor to be in a working state;
s2: starting the first motor to drive a sun gear to rotate actively;
s3: the sun wheel drives the planet wheel to rotate and revolve around the sun wheel;
4S: the planet gear drives the planet gear to synchronously rotate;
s5: the planet wheel four drives the planet wheel three to rotate and revolve around the sun wheel three, and the planet wheel one and the planet wheel three drive the planet carrier one to rotate;
s6: the planet carrier drives the output shaft to rotate, and power is output.
A transmission method of an engine direct drive mode of a dual-motor two-gear planet row hybrid transmission, comprising the steps of:
s1: enabling the first motor and the second motor to be in a non-working state, enabling the first brake and the second brake to be in a separation state, enabling the clutch to be in a combination state, and enabling the engine to be in a working state;
s2: starting the engine to drive the input shaft to rotate;
s3: the input shaft drives the intermediate shaft and the output shaft to rotate through the clutch, and power is output.
A method of operating a dual-motor two-speed planetary-row hybrid transmission in a range-extending drive mode, the method comprising the steps of:
s1: enabling the first motor and the second motor to be in a non-working state, enabling the clutch and the first brake to be in a separation state, enabling the second brake to be in a combination state, and enabling the engine to be in a working state;
s2: the engine drives a rotor of a second motor to rotate through the second planet row, so that the second motor generates electricity;
s3: the second motor supplies power to the first motor;
s4: the first motor is transmitted to the output shaft through a pure electric mode first gear mode or a pure electric mode second gear mode to output power.
A method of transmitting a parallel drive mode of a dual motor two speed planetary range hybrid transmission, said method comprising the steps of:
s1: enabling the second motor to be in a non-working state, enabling the first brake and the second brake to be in a separation state, enabling the clutch to be in a combination state, and enabling the engine and the first motor to be in a working state;
s2: the engine transmits power to an output shaft through an input shaft, a clutch and an intermediate shaft;
s3: the first motor is transmitted to the output shaft in a pure electric mode first gear mode or a pure electric mode second gear mode;
s4: the engine is coupled with the power of the first motor at an output shaft, and the power is output.
A method of operating a two-motor, two-speed planetary-row hybrid transmission in a park-generating mode, the method comprising the steps of:
s1: enabling the second motor and the first motor to be in a non-working state, enabling the clutch, the first brake and the second brake to be in a separated state, and enabling the engine to be in a working state;
s2: the engine drives a rotor of the second motor to rotate through the second planet row, and power is provided for the second motor to generate electricity.
Compared with the prior art, the invention has the beneficial effects that:
the variable Lavenner planetary frame structure is adopted, the cost is low, the structure is simple, the layout is compact, the whole machine carrying performance is good, the control strategy is simple, a power transmission mode of pure electric two gears and engine one gear is provided through the structure of double motors and double planetary rows, multiple driving modes are provided, multiple working conditions are integrated, the comprehensive efficiency of a power system is improved, the fuel consumption rate can be effectively reduced, the purpose of energy conservation and emission reduction is achieved, the development requirement of the current market is met, and the low cost is realized.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic gear diagram of the present invention;
FIG. 3 is a schematic view of the electric only mode first gear of the present invention;
FIG. 4 is a schematic structural diagram of a second gear of the electric-only mode of the present invention;
FIG. 5 is a schematic illustration of the engine direct drive mode configuration of the present invention;
FIG. 6 is a schematic structural view of the extended range drive mode of the present invention;
FIG. 7 is a schematic diagram of the parallel drive mode of the present invention;
FIG. 8 is a gear ratio lever diagram of the present invention.
Detailed Description
The technical solutions in the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the invention, rather than all embodiments, and all other embodiments obtained by those skilled in the art without any creative work based on the embodiments of the present invention belong to the protection scope of the present invention.
A double-motor two-gear planet row hybrid transmission comprises an input shaft 3, an intermediate shaft 4, an output shaft 5, a clutch 6, a second motor 11, a first motor 12, a transmission shell 13, a first brake 14, a second brake 15, a first planet row and a second planet row; the input end of the input shaft 3 is connected with a power system of the engine 1 through the shock absorber 2, the output end of the input shaft 3 extends into the transmission shell 13 and is connected with the second motor 11 through the second planet row, the input shaft 3 is connected with the input end of the intermediate shaft 4 through the clutch 6, the intermediate shaft 4 is connected with the first motor 12 through the first planet row, the output end of the intermediate shaft 4 is connected with the input end of the output shaft 5, the output end of the output shaft 5 extends out of the transmission shell 13 and is in transmission connection with a rear axle of a vehicle, a rotary sealing element is arranged between the input shaft 3 and the transmission shell 13 and between the output shaft 5 and the transmission shell 13, an OP oil pump is externally connected with the transmission shell 13 to supply oil to the inside to achieve a lubricating effect, the output shaft 5 is connected with the first planet row, and the first planet row is connected with the first brake 14 and the second brake 15, the second electric machine 11, the first electric machine 12, the first brake 14, the second brake 15 and the second planet row are all connected with the transmission housing 13.
The second planet row comprises a second outer gear ring 7, a second planet carrier 8, a second planet wheel 9 and a second sun wheel 10; the outer cover of input shaft 3 is equipped with planet carrier two 8 and two 10 of sun gear, planet carrier two 8 and input shaft 3 fixed connection are equipped with a plurality of equal phase place or the equal phase place two 9 of arranging on the parallel planet carrier two 8, planet gear two 9 and two 10 of sun gear and outer ring gear 7 all mesh and are connected, outer ring gear two 7 fixed mounting is on transmission housing 13, sun gear two 10 is connected with the rotor of second motor 11 through the second sleeve pipe, the second sleeve pipe is established on input shaft 3, the stator and the transmission housing 13 fixed connection of second motor 11, second motor 11 are the generating motor.
The first planet row is in a deformed Lavenner form and comprises a first outer gear ring 16, a first planet carrier 17, a third sun gear 18, a first sun gear 19 and a planet wheel set; the fixed cover in the outside of output shaft 5 is equipped with planet carrier 17, and both are connected through integrated into one piece or welding mode, be equipped with the planetary gear set on planet carrier 17, the outside cover of jackshaft 4 is equipped with three sun gear 18 and one sun gear 19, one sun gear 19 is connected through the rotor of first sleeve pipe with first motor 12, first sleeve pipe is established on jackshaft 4, the stator and the 13 fixed connection of derailleur casing of first motor 12, first motor 12 are driving motor, the planetary gear set is connected with the equal meshing of outer ring gear 16, one sun gear 19 and three sun gear 18, three sun gear 18 is connected with the input of stopper two 15, outer ring gear 16 is connected with the input of stopper one 14, stopper one 14 and stopper two 15 all set up on derailleur casing 13.
The planetary wheel set comprises a first planet wheel 20, a third planet wheel 21 and a fourth planet wheel 22; the planet wheel I20 is meshed with the outer gear ring I16, the sun wheel I19 and the planet wheel IV 22, the planet wheel IV 22 is coaxially connected with the planet wheel III 21, and the planet wheel III 21 is meshed with the sun wheel III 18.
The planetary wheel sets have the same tooth number, the same helix angle, the same pressure angle, the same or different modules;
when the planet wheel three 21 and the planet wheel four 22 are machined, the positioning of the gear teeth of the planet wheel three 21 and the planet wheel four 22 has certain continuity, and a specific relation exists so as to meet assembly requirements;
the engine 1, the input shaft 3, the first motor 12, the first planet row, the second motor 11, the second planet row, the intermediate shaft 4 and the output shaft 5 are coaxially arranged in the integral component, the structure is simple and reasonable, power output is stable, preferably, the outer walls of the first outer gear ring 16 and the second outer gear ring 7 are circumferentially provided with clamping teeth, the inner wall of the transmission shell 13 is provided with clamping grooves in a matching mode at corresponding positions, and the first outer gear ring 16 and the second outer gear ring 7 are respectively clamped and positioned on the inner wall of the transmission shell 13 and are easy to assemble.
A method of operating a two-motor, two-speed planetary-row hybrid transmission in an electric-only mode with one gear, the method comprising the steps of:
s1: the engine 1 and the second electric machine 11 are in a non-operating state, the clutch 6 and the second brake 15 are in a disengaged state, the first brake 14 is in an engaged state, and the first electric machine 12 is in an operating state; a battery carried by the vehicle is adopted to supply power for the first motor 12;
s2: starting the first motor 12 to drive the first sun gear 19 to rotate;
s3: the first sun gear 19 drives the first planet gear 20 to rotate;
s4: in the process, as the brake I14 is in a combined state, the outer gear ring I16 is in a fixed state, and the planet gear I20 drives the planet carrier I17 to rotate;
s5: the first planet carrier 17 drives the output shaft 5 to rotate, and power is output.
Realize through first planet row that after the variable speed through 5 transmission vehicle rear axles of output shaft, drive the planet carrier and realize one and keep off the speed reduction velocity ratio to effectively reduce the rotational speed interval of first motor 12, for output shaft 5 provides great moment of torsion, satisfy whole car demand, and can accomplish the switching that advances at a low speed and keep off with low-speed reversing gear through controlling the positive and negative rotation of first motor 12, realize vehicle normal operating.
A pure electric mode two-gear transmission method of a double-motor two-gear planet row hybrid transmission comprises the following steps:
s1: the engine 1 and the second electric machine 11 are in a non-operating state, the clutch 6 and the brake one 14 are in a disengaged state, the brake two 15 is in an engaged state, and the first electric machine 12 is in an operating state; the first electric machine 12 is powered by a battery onboard the vehicle,
s2: starting the first motor 12 to drive the first sun gear 19 to rotate actively;
s3: the first sun gear 19 drives the first planet gear 20 to rotate and revolve around the first sun gear 19;
s4: in the process, the second brake 15 is in a combined state, so that the third sun gear 18 is in a fixed state, and the first planet gear 20 drives the fourth planet gear 22 to synchronously rotate;
s5: the planet gear four 22 drives the planet gear three 21 to rotate and revolve around the sun gear three 18, and the planet carrier one 17 is driven to rotate under the action of the planet gear one 20 and the planet gear three 21;
s6: the first planet carrier 17 drives the output shaft 5 to rotate, and power is output.
After speed change is achieved through the first planet row, the rear axle of the vehicle is transmitted through the output shaft 5, the planet carrier is driven to achieve the speed reduction ratio of the second gear, accordingly, the running speed of the vehicle is changed through gear speed ratio switching in a high-efficiency rotating speed interval of the motor, the requirement of the whole vehicle is met, switching between a high-speed forward gear and a high-speed reverse gear can be achieved through controlling the forward rotation and the reverse rotation of the first motor 12, and normal operation of the vehicle is achieved.
A transmission method of an engine direct drive mode of a dual-motor two-gear planet row hybrid transmission, comprising the steps of:
s1: the first electric machine 12 and the second electric machine 11 are put into a non-operating state, the first brake 14 and the second brake 15 are put into a disengaged state, the clutch 6 is put into an engaged state, and the engine 1 is put into an operating state;
s2: starting the engine 1 to drive the input shaft 3 to rotate;
s3: the input shaft 3 drives the intermediate shaft 4 and the output shaft 5 to rotate through the clutch 6, power output is directly transmitted to a rear axle of the vehicle, the vehicle is generally used under a high-speed working condition and is directly driven to run by the engine 1, the engine 1 finishes power output along the coaxial direction in the process, the power output can be seen as a linear speed ratio, the engine 1 is located in a high-efficiency interval, and fuel economy is good.
A method of operating a dual-motor two-speed planetary-row hybrid transmission in a range-extending drive mode, the method comprising the steps of:
s1: the first electric machine 12 and the second electric machine 11 are in a non-operating state, the clutch 6 and the brake 14 are in a disengaged state, the brake 15 is in an engaged state, and the engine 1 is in an operating state;
s2: the engine 1 drives the rotor of the second motor 11 to rotate through the second planet row to provide power for the second motor 11 to generate electricity, the outer gear ring II 7 is of a fixed structure in the process, the engine 1 drives the planet carrier II 8 to actively rotate through the input shaft 3 to drive the sun gear II 10 to increase the speed ratio and adjust the rotor of the second motor 11, and the second motor 11 generates electricity;
s3: the second motor 11 supplies power to the first motor 12;
s4: the first motor 12 is transmitted to the output shaft 5 through a pure electric mode first gear mode or a pure electric mode second gear mode, and power is output.
A method of transmitting a parallel drive mode of a two-motor, two-speed planetary-row hybrid transmission, the method comprising the steps of:
s1: the second electric machine 11 is put into a non-operating state, the first brake 14 and the second brake 15 are put into a disengaged state, the clutch 6 is put into an engaged state, and the engine 1 and the first electric machine 12 are put into an operating state;
s2: the engine 1 transmits power to an output shaft 5 through an input shaft 3, a clutch 6 and an intermediate shaft 4;
s3: the first motor 12 is transmitted to the output shaft 5 through a pure electric mode first gear mode or a pure electric mode second gear mode;
s4: the engine 1 is coupled with the power of the first motor 12 at the output shaft 5, so as to output the power and provide a set of larger power source, and the power source is generally applied to the working condition with larger power and torque requirements, such as high-speed overtaking.
A method of operating a two-motor, two-speed planetary-row hybrid transmission in a park-generating mode, the method comprising the steps of:
s1: the second motor 11 and the first motor 12 are in a non-operating state, the clutch 6, the first brake 14 and the second brake 15 are in a separated state, and the engine 1 is in an operating state;
s2: the engine 1 drives the rotor of the second motor 11 to rotate through the second planet row, and provides power for the second motor 11 to generate electricity.
According to the invention, when the engine 1 is not in a high-efficiency interval, the first motor 12 serving as a driving motor realizes driving work in a pure electric mode by means of electric energy provided by a battery, and meanwhile, a two-gear pure electric driving mode is invented in the mode, so that the high-efficiency interval of the motor is effectively expanded, fuel is saved, and the fuel economy is improved.
When the engine 1 reaches a high-efficiency interval, an engine direct-drive mode is adopted, the engine 1 provides power for the second motor 11 to generate power in an extended-range drive mode, the second motor 11 provides electric energy for the first motor 12 to increase the driving mileage, two-gear speed ratio drive is provided through a deformed ravigneaux planetary row, meanwhile, a parallel drive mode can be adopted, the engine 1 and the first motor 12 provide power together to meet working conditions such as high-speed overtaking and the like which need high-power torque, when the vehicle stops and idles, the vehicle enters a parking power generation mode, the engine 1 provides power for the second motor 11 to generate power, waste of power caused by idling of the engine 1 is avoided, the working condition point of the engine 1 is adjusted by controlling the second motor 11 and the first motor 12 to work, the control strategy is simple, and the oil consumption of the engine 1 is reduced.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. The utility model provides a double-motor two keeps off planet row and mixes dynamic transmission which characterized in that: the planetary gear transmission comprises an input shaft (3), an intermediate shaft (4), an output shaft (5), a clutch (6), a second motor (11), a first motor (12), a transmission shell (13), a first brake (14), a second brake (15), a first planetary row and a second planetary row; the input end of the input shaft (3) is connected with a power system of the engine (1), the output end of the input shaft (3) is connected with a second motor (11) through a second planet row, the input shaft (3) is connected with the input end of an intermediate shaft (4) through a clutch (6), the intermediate shaft (4) is connected with a first motor (12) through a first planet row, the output end of the intermediate shaft (4) is connected with the input end of an output shaft (5), the output end of the output shaft (5) is in transmission connection with a rear axle of a vehicle, the output shaft (5) is connected with a first planet row, the first planet row is connected with a first brake (14) and a second brake (15), and the second motor (11), the first motor (12), the first brake (14), the second brake (15) and the second planet row are all connected with a transmission shell (13).
2. The two-motor two-speed planetary-row hybrid transmission according to claim 1, characterized in that: the second planet row comprises a second outer gear ring (7), a second planet carrier (8), a second planet wheel (9) and a second sun wheel (10); the outer side cover of input shaft (3) is equipped with planet carrier two (8) and sun gear two (10), planet carrier two (8) and input shaft (3) fixed connection are equipped with planet wheel two (9) on parallel planet carrier two (8), planet wheel two (9) are connected with the equal meshing of sun gear two (10) and outer ring gear two (7), outer ring gear two (7) fixed mounting is on derailleur casing (13), sun gear two (10) are connected with second motor (11), second motor (11) and derailleur casing (13) fixed connection.
3. A two-motor two-speed planetary-row hybrid transmission according to claim 1 or 2, characterized in that: the first planet row comprises a first outer gear ring (16), a first planet carrier (17), a third sun gear (18), a first sun gear (19) and a planet wheel set; the fixed cover in the outside of output shaft (5) is equipped with planet carrier (17), be equipped with the planetary wheel group on planet carrier (17), the outside cover of jackshaft (4) is equipped with sun gear three (18) and sun gear (19), sun gear (19) are connected with first motor (12), first motor (12) and derailleur casing (13) fixed connection, the planetary wheel group is connected with outer ring gear (16), sun gear (19) and the equal meshing of sun gear three (18), sun gear three (18) are connected with the input of stopper two (15), outer ring gear (16) are connected with the input of stopper one (14), stopper one (14) and stopper two (15) all set up on derailleur casing (13).
4. A two-motor, two-speed planetary-row hybrid transmission according to claim 3, characterized in that: the planetary gear set comprises a first planetary gear (20), a third planetary gear (21) and a fourth planetary gear (22); the planet wheel I (20) is meshed with the outer gear ring I (16), the sun wheel I (19) and the planet wheel IV (22), the planet wheel IV (22) is coaxially connected with the planet wheel III (21), and the planet wheel III (21) is meshed with the sun wheel III (18).
5. A method of operating a two-motor two-speed planetary-row hybrid transmission in an electric-only mode with one speed according to any one of claims 4, characterized by: the method comprises the following steps:
s1: the engine (1) and the second motor (11) are in a non-working state, the clutch (6) and the brake II (15) are in a separating state, the brake I (14) is in a combining state, and the first motor (12) is in a working state;
s2: starting the first motor (12) to drive a first sun gear (19) to rotate;
s3: the first sun wheel (19) drives the first planet wheel (20) to rotate;
s4: the planet wheel I (20) drives the planet carrier I (17) to rotate;
s5: the first planet carrier (17) drives the output shaft (5) to rotate, and power is output.
6. A pure electric mode two-gear transmission method of a two-motor two-gear planetary-row hybrid transmission according to claim 4, characterized in that: the method comprises the following steps:
s1: the engine (1) and the second motor (11) are in a non-working state, the clutch (6) and the brake I (14) are in a separating state, the brake II (15) is in a combining state, and the first motor (12) is in a working state;
s2: starting the first motor (12) to drive a first sun gear (19) to rotate actively;
s3: the first sun gear (19) drives the first planet gear (20) to rotate and revolve around the first sun gear (19);
s4: the planet wheel I (20) drives the planet wheel IV (22) to synchronously rotate;
s5: the planet wheel IV (22) drives the planet wheel III (21) to rotate and revolve around the sun wheel III (18), and the planet wheel I (20) and the planet wheel III (21) drive the planet carrier I (17) to rotate;
s6: the first planet carrier (17) drives the output shaft (5) to rotate, and power is output.
7. A transmission method in an engine direct drive mode of a two-motor two-speed planetary-row hybrid transmission according to any one of claims 1 to 4, characterized in that: the method comprises the following steps:
s1: the first motor (12) and the second motor (11) are in a non-working state, the first brake (14) and the second brake (15) are in a separation state, the clutch (6) is in a combination state, and the engine (1) is in a working state;
s2: starting the engine (1) and driving an input shaft (3) to rotate;
s3: the input shaft (3) drives the intermediate shaft (4) and the output shaft (5) to rotate through the clutch (6) to output power.
8. A method of transmitting the range-extended drive mode of the two-motor two-speed planetary-row hybrid transmission according to claim 5 or 6, characterized in that: the method comprises the following steps:
s1: the first motor (12) and the second motor (11) are in a non-working state, the clutch (6) and the first brake (14) are in a separating state, the second brake (15) is in a combining state, and the engine (1) is in a working state;
s2: the engine (1) drives a rotor of the second motor (11) to rotate through the second planet row, so that the second motor (11) generates electricity;
s3: the second motor (11) supplies power to the first motor (12);
s4: the first motor (12) is transmitted to the output shaft (5) through a pure electric mode first gear mode or a pure electric mode second gear mode, and power is output.
9. A transmission method of a parallel drive mode of a two-motor two-speed planetary-row hybrid transmission according to claim 5 or 6, characterized in that: the method comprises the following steps:
s1: the second motor (11) is in a non-working state, the first brake (14) and the second brake (15) are in a separating state, the clutch (6) is in a combining state, and the engine (1) and the first motor (12) are in a working state;
s2: the engine (1) transmits power to an output shaft (5) through an input shaft (3), a clutch (6) and an intermediate shaft (4);
s3: the first motor (12) is transmitted to the output shaft (5) through a pure electric mode first gear mode or a pure electric mode second gear mode;
s4: the engine (1) is coupled with the power of the first motor (12) at the output shaft (5) to output the power.
10. A method of transmitting the two-motor two-speed planetary-row hybrid transmission in the park-electric mode according to any one of claims 1 to 4, characterized in that: the method comprises the following steps:
s1: enabling the second motor (11) and the first motor (12) to be in a non-working state, enabling the clutch (6), the brake I (14) and the brake II (15) to be in a separated state, and enabling the engine (1) to be in a working state;
s2: the engine (1) drives a rotor of the second motor (11) to rotate through the second planet row, and provides power for the second motor (11) to generate electricity.
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| CN202210615637.6A CN115071403A (en) | 2022-05-31 | 2022-05-31 | Double-motor two-gear planet row hybrid transmission and transmission method thereof |
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