CN114475207B - Hybrid electric vehicle driving system - Google Patents
Hybrid electric vehicle driving system Download PDFInfo
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- CN114475207B CN114475207B CN202210054885.8A CN202210054885A CN114475207B CN 114475207 B CN114475207 B CN 114475207B CN 202210054885 A CN202210054885 A CN 202210054885A CN 114475207 B CN114475207 B CN 114475207B
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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
- B60K6/24—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 combustion engines
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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
- B60K6/42—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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L7/00—Electrodynamic brake systems for vehicles in general
- B60L7/10—Dynamic electric regenerative braking
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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 belongs to the technical field of automobile transmission, and particularly relates to a power system of a hybrid electric vehicle, which comprises a first driving end and a second driving end, wherein the first driving end comprises a first driving shaft, the second driving end comprises a second driving shaft, the first driving shaft is provided with a first shaft sleeve, the second driving shaft sleeve is provided with a second shaft sleeve, the outer side of the first shaft sleeve and the second shaft sleeve are sleeved with gear rings, the first shaft sleeve is connected with a starting motor, the gear rings are connected with a first output end, the first shaft sleeve is provided with a first sun gear, the first driving shaft is provided with a first planetary transmission mechanism, the second driving shaft is connected with a motor, the second driving shaft is provided with a second planetary transmission mechanism, the second shaft sleeve is provided with a second sun gear, and the second shaft sleeve is provided with a second output end; the invention can make the transmission structure of the automobile power system more compact, realize different power output modes, simultaneously have more various functional changes and efficiently utilize redundant kinetic energy.
Description
Technical Field
The invention belongs to the technical field of automobile power systems, and particularly relates to a hybrid electric automobile power system.
Background
The conventional hybrid electric vehicle generally refers to a hybrid electric vehicle, that is, a conventional internal combustion engine (diesel engine or gasoline engine) and an electric motor are adopted as power sources, so that the hybrid electric vehicle has better environmental protection, energy conservation and economy compared with the conventional internal combustion engine vehicle, has a good development trend in the present and recent times, and the conventional hybrid electric vehicle has the functions of switching different power output modes, but has a complex transmission structure, occupies a larger space, generally has no function of switching the driving modes and cannot switch the two-drive four-drive modes in the driving of the vehicle, so that the hybrid electric vehicle power system is provided, the transmission structure of the vehicle power system is more compact, the different two-drive four-drive modes can be switched in the different power output modes, and meanwhile, the hybrid electric vehicle has the functions of in-situ power generation, cruising and low-load assistance, travelling charging, braking energy recovery and the like, has more various functional changes, and can efficiently utilize redundant kinetic energy.
Disclosure of Invention
The purpose of the invention is that: the power system of the hybrid electric vehicle is more compact in transmission structure, different power output modes can be realized, different two-drive four-drive modes can be converted in different power output modes, and meanwhile, the power system has the functions of in-situ power generation, cruising, low-load assistance, travelling charging, braking energy recovery and the like, has more various functional changes, and can efficiently utilize redundant kinetic energy.
In order to achieve the technical purpose, the invention adopts the following technical scheme:
the first driving end comprises a first driving shaft, the front end of the first driving shaft is connected with an engine, a clutch is arranged between the engine and the first driving shaft, the second driving end comprises a second driving shaft, a first shaft sleeve is sleeved outside the first driving shaft, a second shaft sleeve is sleeved outside the second driving shaft, a gear ring is sleeved outside the first shaft sleeve and the outer side of the second shaft sleeve together, the front end of the first shaft sleeve is connected with a starting motor, the front end of the gear ring is connected with a first output end, a first sun gear is fixedly arranged at the rear end of the first shaft sleeve, a first planetary transmission mechanism is arranged at the rear end of the first driving shaft, and the first planetary transmission mechanism is respectively connected with the first sun gear and the gear ring in a transmission way;
the rear end of the second driving shaft is connected with a motor, the front end of the second driving shaft is provided with a second planetary transmission mechanism, the front end of the second sleeve is provided with a second sun gear, the second planetary transmission mechanism is respectively in transmission connection with the second sun gear and the gear ring, the rear end of the second sleeve is provided with a second output end, and a coupling mechanism is further arranged between the second driving shaft and the first driving shaft.
The first planetary transmission mechanism comprises a first planet carrier and a plurality of first planet gears arranged on the first planet carrier, wherein the first planet gears are positioned between the first sun gear and the gear ring and meshed with the first sun gear and the gear ring respectively.
The second planetary transmission mechanism comprises a second planet carrier and a plurality of second planet gears arranged on the second planet carrier, and the second planet gears are arranged between the second sun gear and the gear ring and meshed with the second sun gear and the gear ring respectively.
The gear ring is a two-stage gear ring, and the first planet wheel and the second planet wheel are respectively meshed with two stages of the gear ring.
The coupling mechanism comprises a first coupling key arranged at the rear end of the first driving shaft and a second coupling key arranged at the front end of the second driving shaft, and a coupling is arranged between the first coupling key and the second coupling key.
The starting motor is a 48VBSG motor.
The transmission structure of the automobile power system is more compact in structure, different power output modes and different two-drive four-drive mode conversion modes can be realized in different power output modes, and meanwhile, the automobile power system has the functions of in-situ power generation, cruising, low-load auxiliary, travelling charging, braking energy recovery and the like, has more various functional changes, and can efficiently utilize redundant kinetic energy.
Drawings
The invention can be further illustrated by means of non-limiting examples given in the accompanying drawings;
FIG. 1 is a schematic diagram of a hybrid vehicle powertrain according to an embodiment of the present invention;
the main reference numerals are as follows:
the first driving shaft 1, the engine 2, the clutch 3, the second driving shaft 4, the first shaft sleeve 5, the second shaft sleeve 6, the starting motor 7, the gear ring 8, the first output end 9, the first sun gear 10, the first planet carrier 11, the first planet gears 12, the motor 13, the second planet carrier 14, the second planet gears 15, the second sun gear 16, the second output end 17, the first coupling key 18, the second coupling key 19 and the coupling 20.
Detailed Description
In order that those skilled in the art will better understand the present invention, the following technical scheme of the present invention will be further described with reference to the accompanying drawings and examples.
As shown in fig. 1, the power system of the hybrid electric vehicle comprises a first driving end and a second driving end, wherein the first driving end comprises a first driving shaft 1, the front end of the first driving shaft 1 is connected with an engine 2, a clutch 3 is arranged between the engine 2 and the first driving shaft 1, the second driving end comprises a second driving shaft 4, a first shaft sleeve 5 is sleeved outside the first driving shaft 1, a second shaft sleeve 6 is sleeved outside the second driving shaft 4, a gear ring 8 is sleeved outside the first shaft sleeve 5 and outside the second shaft sleeve 6 together, the front end of the first shaft sleeve 5 is connected with a starting motor 7, the front end of the gear ring 8 is connected with a first output end 9, the rear end of the first shaft sleeve 5 is fixedly provided with a first sun gear 10, the rear end of the first driving shaft 1 is provided with a first planetary transmission mechanism, the first planetary transmission mechanism is respectively in transmission connection with the first sun gear 10 and a gear ring 8, the first planetary transmission mechanism comprises a first planet carrier 11 and a plurality of first planet gears 12 arranged on the first planet carrier 11, the first planet gears 12 are positioned between the first sun gears 10 and 8 and meshed with the first gear ring gears 10 and 8 respectively;
the rear end of the second driving shaft 4 is connected with a motor 13, the front end of the second driving shaft 4 is provided with a second planetary transmission mechanism, the front end of the second sleeve 6 is provided with a second sun gear 16, the second planetary transmission mechanism is respectively in transmission connection with the second sun gear 16 and the gear ring 8, the second planetary transmission mechanism comprises a second planet carrier 14 and a plurality of second planet gears 15 arranged on the second planet carrier 14, and the second planet gears 15 are arranged between the second sun gear 16 and the gear ring 8 and are respectively meshed with the second sun gear 16 and the gear ring 8;
the rear end of the second shaft sleeve 6 is provided with a second output end 17, a coupling mechanism is further arranged between the second driving shaft 4 and the first driving shaft 1, the coupling mechanism comprises a first coupling key 18 arranged at the rear end of the first driving shaft 1 and a second coupling key 19 arranged at the front end of the second driving shaft 4, and a coupling 20 is arranged between the first coupling key 18 and the second coupling key 19.
The automobile power system adopting the technical scheme of the invention has the following functions:
(1) when the engine 2 outputs as separate power:
the gear ring 8 is locked, the first coupling key 18, the second coupling key 19 and the coupling 20 are disconnected, the first driving shaft 1 and the second driving shaft 4 are disconnected, a 48VBSG motor of the starting motor 7 is started to drive the first sun gear 10 of the first shaft sleeve 5 to rotate, so that the first planet gear 12 drives the first planet carrier 11 to rotate, the first driving shaft 1 is rotated, the rotating speed of the engine 2 is rapidly increased from zero to above idling, and an automobile is rapidly started; when the automobile adopts the first output end 9 to output power, the first coupling key 18, the second coupling key 19 and the coupling 20 are disconnected, the second planet carrier 14 and the second sun gear 16 are locked, the power of the engine 2 is transmitted into the gear ring 8 through the first driving shaft 1, the first sun gear 10, the first planet carrier 11 and the first planet gear 12, and the power is output from the first output end 9; when the automobile adopts the second output end 17 to output power, the first coupling key 18, the second coupling key 19 and the coupling 20 are connected, the gear ring 8 is locked, the power of the engine 2 is transmitted to the second driving shaft 4 through the first driving shaft 1, and the power is transmitted to the second sun gear 16 through the second planet carrier 14 and the second planet gears 15 by the second driving shaft 4, so that the power is output from the second output end 17 of the second shaft sleeve 6; when the automobile adopts the first output end 9 and the second output end 17 to output power at the same time, the first coupling key 18, the second coupling key 19 and the coupling 20 are disconnected, the power of the engine 2 is output to the gear ring 8 through the first driving shaft 1 through the first sun gear 10, the first planet carrier 11 and the first planet gear 12, so that the gear ring 8 can transmit the power to the second sun gear 16 through the second planet carrier 14 and the second planet gear 15 while the first output end 9 outputs the power, and the second output end 17 outputs the power;
(2) when the motor 13 outputs as separate power:
when the automobile adopts the first output end 9 to output power, the first coupling key 18, the second coupling key 19 and the coupling 20 are disconnected, the second sun gear 16 is locked, the power of the motor 13 is output to the second driving shaft 4, and the second driving shaft 4 transmits the power to the gear ring 8 through the second planet carrier 14 and the second planet gears 15, so that the power is output from the first output end 9; when the automobile adopts the second output end 17 to output power, the first coupling key 18, the second coupling key 19 and the coupling 20 are disconnected, the gear ring 8 is locked, the power of the motor 13 is output to the second driving shaft 4, and the second driving shaft 4 transmits the power to the second shaft sleeve 6 through the second planet carrier 14, the second planet wheel 15 and the second sun wheel 16, so that the power is output through the second output end 17; when the automobile adopts the first output end 9 and the second output end 17 to output power at the same time, the first coupling key 18, the second coupling key 19 and the coupling 20 are disconnected, the power of the motor 13 is output to the second driving shaft 4, the second driving shaft 4 transmits the power to the second sun gear 16 and the gear ring 8 through the second planet carrier 14 and the second planet gear 15, the second sun gear 16 outputs the power through the second output end 17, and the gear ring 8 outputs the power through the first output end 9;
(3) when the engine 2 and the motor 13 are used as power output at the same time:
when the automobile adopts the first output end 9 to output power, the first coupling key 18, the second coupling key 19 and the coupling 20 are disconnected, the second sun gear 16 is locked, the power of the engine 2 is transmitted to the gear ring 8 through the first driving shaft 1, meanwhile, the power of the motor 13 is transmitted to the gear ring 8 through the second driving shaft 4, and the gear ring 8 outputs the power through the first output end 9; when the automobile adopts the second output end 17 to output power, the first coupling key 18, the second coupling key 19 and the coupling 20 are connected, the gear ring 8 is locked, the power of the engine 2 is firstly transmitted to the second driving shaft 4 by the first driving shaft 1, then the power is output by the second driving shaft 4 through the second output end 17, and meanwhile, the power of the motor 13 is directly transmitted to the second output end 17 through the second driving shaft 4 to be output; when the automobile adopts the first output end 9 and the second output end 17 to output power, the first coupling key 18, the second coupling key 19 and the coupling 20 are disconnected, the power of the engine 2 is transmitted to the gear ring 8 through the first driving shaft 1, the power is output through the first output end 9, the power of the motor 13 is transmitted to the second sleeve 6 through the second driving shaft 4, and the power is output through the second output end 17. When the output torque requirement of the first driving shaft 1 is higher in the operation of the engine 2, the 48VBSG motor of the starting motor 7 is in a power-on running state, and auxiliary power is output to the first shaft sleeve 5, so that the output torque of the engine 2 can be assisted; when the output torque requirement of the first driving shaft 1 is lower, the output power of the engine 2 overflows, and at the moment, the redundant output power drives the 48VBSG motor of the starting motor 7 to rotate, so that a 48V storage battery of the 48VBSG motor is charged;
(4) in-situ power generation:
the first coupling key 18, the second coupling key 19 and the coupling 20 are connected, the gear ring 8 and the second sun gear 16 are locked, the engine 2 outputs power, the vehicle is kept in a stationary state, the first driving shaft 1 transmits the power to the first shaft sleeve 6 and the second driving shaft 4, the power output by the first shaft sleeve 6 enables the 48VBSG motor to rotate, so that the 48V storage battery is charged, and the power output by the second driving shaft 4 can drive the motor 13 to rotate, so that the vehicle driving battery is charged;
(5) cruise and low load conditions:
the engine 2 stops working, the 48VBSG motor of the starting motor 7 provides small output power, and the power required by cruising and low-load states is maintained;
(6) charging during traveling:
the 48VBSG motor and the motor 13 of the starter motor 7 can be driven to rotate respectively when the first output terminal 9 and the second output terminal 17 rotate, so that the 48V storage battery and the vehicle driving battery can be charged during the running process of the vehicle;
(7) and (3) braking energy recovery:
when the vehicle brakes and decelerates, the vehicle hub drives the motor 13 to rotate, so that the braking energy of the vehicle can charge the vehicle storage battery through the rotation of the motor 13;
the invention can make the transmission structure of the automobile power system more compact, realize different power output modes and convert different two-drive four-drive modes in different power output modes, simultaneously have the functions of in-situ power generation, cruising, low-load auxiliary, travelling charging, braking energy recovery and the like, have more various functional changes, and can efficiently utilize redundant kinetic energy.
Referring to fig. 1, the ring gear 8 is a two-stage ring gear, and the first planetary gear 12 and the second planetary gear 15 are respectively meshed with two stages of the ring gear 8.
Meanwhile, the starting motor 7 is a 48VBSG motor. In such a way, the 48VBSG motor is adopted to drive the engine to increase from zero to above idle speed in a very short time through a belt, so that the rapid start-stop of the automobile is realized.
The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims of this invention, which are within the skill of those skilled in the art, can be made without departing from the spirit and scope of the invention disclosed herein.
Claims (6)
1. The utility model provides a hybrid vehicle driving system, includes first drive end and second drive end, first drive end is including first drive shaft, first drive shaft front end is connected with the engine, be equipped with the clutch between engine and the first drive shaft, the second drive end is including the second drive shaft, its characterized in that: the first shaft sleeve is sleeved outside the first driving shaft, the second shaft sleeve is sleeved outside the second driving shaft, a gear ring is sleeved outside the first shaft sleeve and the second shaft sleeve together, the front end of the first shaft sleeve is connected with a starting motor, the front end of the gear ring is connected with a first output end, the rear end of the first shaft sleeve is fixedly provided with a first sun gear, the rear end of the first driving shaft is provided with a first planetary transmission mechanism, and the first planetary transmission mechanism is respectively in transmission connection with the first sun gear and the gear ring;
the rear end of the second driving shaft is connected with a motor, the front end of the second driving shaft is provided with a second planetary transmission mechanism, the front end of the second sleeve is provided with a second sun gear, the second planetary transmission mechanism is respectively in transmission connection with the second sun gear and the gear ring, the rear end of the second sleeve is provided with a second output end, and a coupling mechanism is further arranged between the second driving shaft and the first driving shaft.
2. A hybrid vehicle powertrain according to claim 1, wherein: the first planetary transmission mechanism comprises a first planet carrier and a plurality of first planet gears arranged on the first planet carrier, wherein the first planet gears are positioned between the first sun gear and the gear ring and meshed with the first sun gear and the gear ring respectively.
3. A hybrid vehicle powertrain according to claim 2, wherein: the second planetary transmission mechanism comprises a second planet carrier and a plurality of second planet gears arranged on the second planet carrier, and the second planet gears are arranged between the second sun gear and the gear ring and meshed with the second sun gear and the gear ring respectively.
4. A hybrid vehicle powertrain according to claim 3, wherein: the gear ring is a two-stage gear ring, and the first planet wheel and the second planet wheel are respectively meshed with two stages of the gear ring.
5. A hybrid vehicle powertrain according to claim 4, wherein: the coupling mechanism comprises a first coupling key arranged at the rear end of the first driving shaft and a second coupling key arranged at the front end of the second driving shaft, and a coupling is arranged between the first coupling key and the second coupling key.
6. A hybrid vehicle powertrain according to claim 1, wherein: the starting motor is a 48V BSG motor.
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| CN117227513A (en) * | 2023-11-06 | 2023-12-15 | 燕山大学 | Split pavement dual-mode coupling driving system, driving method and electric automobile |
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