CN114475207A - Power system of hybrid electric vehicle - Google Patents
Power system of hybrid electric vehicle Download PDFInfo
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- CN114475207A CN114475207A CN202210054885.8A CN202210054885A CN114475207A CN 114475207 A CN114475207 A CN 114475207A CN 202210054885 A CN202210054885 A CN 202210054885A CN 114475207 A CN114475207 A CN 114475207A
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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
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Power Engineering (AREA)
- Hybrid Electric Vehicles (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention belongs to the technical field of automobile transmission, and particularly relates to a hybrid electric vehicle power system 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 sleeved with a first shaft sleeve, the second driving shaft is sleeved with a second shaft sleeve, gear rings are arranged on the outer side of the first shaft sleeve and the second shaft sleeve, the first shaft sleeve is connected with a starting motor, the gear rings are connected with a first output end, the first shaft is sleeved 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 is sleeved with a second sun gear, and the second shaft is sleeved with a second output end; the invention can make the transmission structure of the automobile power system more compact, realize different power output modes, have more various functional changes and can 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 vehicle power system.
Background
Generally, a hybrid electric vehicle is a gasoline-electric hybrid electric vehicle, i.e., a conventional internal combustion engine (diesel engine or gasoline engine) and an electric motor are used as power sources, so that the gasoline-electric hybrid electric vehicle has better environmental protection, energy saving and economy compared with the conventional internal combustion engine vehicle, and has a good development trend at present and in the near future, although the conventional hybrid electric vehicle can switch different power output modes, the transmission structure of the power system is complex and occupies a large space, and meanwhile, the vehicle drive generally does not have the function of switching the drive mode and cannot switch the two-drive four-drive mode, so that a hybrid electric vehicle power system is provided, the transmission structure of the vehicle power system is more compact, different power output modes can be realized, and different two-drive four-drive modes can be switched in different power output modes, meanwhile, the system has the functions of in-situ power generation, cruising, low-load assistance, advancing 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: the hybrid power automobile power system has the advantages that the transmission structure of the automobile power system is more compact, different power output modes can be realized, different two-wheel drive and four-wheel drive modes can be converted in different power output modes, the functions of in-situ power generation, cruising, low-load assisting, advancing charging, braking energy recovery and the like are realized, more various function changes are realized, and redundant kinetic energy can be efficiently utilized.
In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows:
a hybrid electric vehicle power system comprises a first driving end and a second driving end, wherein 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, gear rings are 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, 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 in transmission connection with the first sun gear and the gear rings respectively;
the motor is connected with second driving shaft rear end, second driving shaft front end is equipped with second planetary transmission mechanism, second bushing front end is equipped with the second sun gear, second planetary transmission mechanism is connected with second sun gear and ring gear transmission respectively, second bushing rear end is equipped with the second output, still be equipped with even axle mechanism between 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, and the first planet gears are positioned between the first sun gear and the gear ring and are respectively meshed with the first sun gear and the gear ring.
The second planetary transmission mechanism comprises a second planet carrier and a plurality of second planet wheels arranged on the second planet carrier, and the second planet wheels are arranged between the second sun wheel and the gear ring and are respectively meshed with the second sun wheel and the gear ring.
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 coupler is arranged between the first coupling key and the second coupling key.
The starting motor is a 48V BSG motor.
The transmission structure of the automobile power system is more compact, different power output modes can be realized, different two-wheel drive and four-wheel drive modes can be converted in different power output modes, the functions of in-situ power generation, cruising, low-load assisting, advancing charging, braking energy recovery and the like are realized, more various functional changes are realized, and redundant kinetic energy can be efficiently utilized.
Drawings
The invention is further illustrated by the non-limiting examples given in the accompanying drawings;
FIG. 1 is a schematic structural diagram of an embodiment of a hybrid electric vehicle powertrain of the present invention;
the main element symbols are as follows:
the clutch comprises a first driving shaft 1, an engine 2, a clutch 3, a second driving shaft 4, a first shaft sleeve 5, a second shaft sleeve 6, a starting motor 7, a gear ring 8, a first output end 9, a first sun gear 10, a first planet carrier 11, a first planet gear 12, an electric motor 13, a second planet carrier 14, a second planet gear 15, a second sun gear 16, a second output end 17, a first coupling key 18, a second coupling key 19 and a coupling 20.
Detailed Description
In order that those skilled in the art can better understand the present invention, the following technical solutions are further described with reference to the accompanying drawings and examples.
As shown in fig. 1, the hybrid vehicle power system of the invention includes a first driving end and a second driving end, the first driving end includes a first driving shaft 1, a 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 includes 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, a starting motor 7 is connected to a front end of the first shaft sleeve 5, a first output end 9 is connected to a front end of the gear ring 8, a first sun gear 10 is fixed to a rear end of the first shaft sleeve 5, a first planetary gear is arranged at a rear end of the first driving shaft 1, the first planetary gear is in transmission connection with the first sun gear 10 and the gear ring 8 respectively, the first planetary gear includes a first planet carrier 11 and a plurality of first planet carriers 12 arranged on the first planet carrier 11, the first planet gear 12 is positioned between the first sun gear 10 and the ring gear 8 and is respectively meshed with the first sun gear 10 and the ring gear 8;
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 shaft sleeve 6 is provided with a second sun gear 16, the second planetary transmission mechanism is in transmission connection with the second sun gear 16 and the gear ring 8 respectively, 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 meshed with the second sun gear 16 and the gear ring 8 respectively;
the rear end of the second shaft sleeve 6 is provided with a second output end 17, a connecting shaft mechanism is further arranged between the second driving shaft 4 and the first driving shaft 1, the connecting shaft mechanism comprises a first connecting shaft key 18 arranged at the rear end of the first driving shaft 1 and a second connecting shaft key 19 arranged at the front end of the second driving shaft 4, and a shaft coupling 20 is arranged between the first connecting shaft key 18 and the second connecting shaft key 19.
The automobile power system adopting the technical scheme of the invention has the following functions:
when engine 2 outputs power alone:
the gear ring 8 is locked, the first coupling key 18, the second coupling key 19 and the coupling 20 are disconnected, so that the first driving shaft 1 and the second driving shaft 4 are disconnected, the 48V BSG motor of the starting motor 7 is started, the first sun gear 10 of the first shaft sleeve 5 is driven to rotate, the first planet gear 12 drives the first planet carrier 11 to rotate, the first driving shaft 1 rotates, the rotating speed of the engine 2 is increased from zero to above an idle speed, and the automobile is started quickly; when the automobile outputs power by adopting the first output end 9, 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, and the power of the engine 2 is transmitted to 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, so that the power is output from the first output end 9; when the automobile outputs power by adopting the second output end 17, the first coupling key 18, the second coupling key 19 and the coupling 20 are connected to lock the gear ring 8, 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 gear 15 by the second driving shaft 4, so that the power is output from the second output end 17 of the second sleeve 6; when the automobile simultaneously 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 output to the gear ring 8 through the first driving shaft 1 and 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 is output as a separate power:
when the automobile outputs power by using the first output end 9, 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 gear 15, so that the power is output from the first output end 9; when the automobile outputs power by adopting the second output end 17, 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 simultaneously 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 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;
third, when the engine 2 and the motor 13 are simultaneously used as power outputs:
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 to lock the gear ring 8, the power of the engine 2 is transmitted to the second driving shaft 4 through the first driving shaft 1, then the power is output through the second output end 17 through the second driving shaft 4, 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 simultaneously 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 shaft sleeve 6 through the second driving shaft 4, and the power is output through the second output end 17. When the engine 2 works and the output torque requirement of the first driving shaft 1 is high, the 48V BSG motor of the starting motor 7 is in an electricity utilization 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 low, the output power of the engine 2 overflows, and at the moment, redundant output power drives a 48V BSG motor of the starting motor 7 to rotate, so that a 48V storage battery of the 48V BSG motor is charged;
fourthly, in-situ power generation:
the first coupling key 18, the second coupling key 19 and the coupling 20 are connected to lock the gear ring 8 and the second sun gear 16, the engine 2 outputs power, the vehicle keeps in an original stationary state, the first driving shaft 1 transmits the power to the first shaft sleeve 6 and the second driving shaft 4, the 48V BSG motor is rotated by the power output by the first shaft sleeve 6, so that the 48V storage battery is charged, and the motor 13 can be driven to rotate by the power output by the second driving shaft 4, so that the vehicle driving battery is charged;
cruise and low load state:
the engine 2 stops working, and the 48V BSG motor of the starting motor 7 provides very small output power to maintain power required by cruising and a low-load state;
sixthly, charging in advance:
the 48V BSG motor of the starting motor 7 and the motor 13 can be driven to rotate respectively when the first output end 9 and the second output end 17 rotate, so that the 48V storage battery and the vehicle driving battery can be charged during the running process of the vehicle;
and braking energy recovery:
when the vehicle is braked and decelerated, the hub of the vehicle drives the motor 13 to rotate, so that the braking energy of the vehicle can be charged for a storage battery of the vehicle through the rotation of the motor 13;
the invention can make the transmission structure of the automobile power system more compact, can realize different power output modes and can realize the conversion of different two-wheel drive and four-wheel drive modes in different power output modes, simultaneously has the functions of in-situ power generation, cruising, low-load assistance, advancing charging, braking energy recovery and the like, has 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 engaged with two stages of the ring gear 8.
Meanwhile, the starter motor 7 is a 48V BSG motor. In such a way, the 48V BSG motor is adopted to increase the rotating speed of the engine from zero to above the idle speed in a very short time through belt transmission, so that the rapid start and stop of the automobile are realized.
The foregoing embodiments are merely illustrative of the principles of the present invention and its efficacy, and are not to be construed as limiting the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
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 driving axle, first driving axle front end is connected with the engine, be equipped with the clutch between engine and the first driving axle, the second drive end is including second driving axle, its characterized in that: a first shaft sleeve is sleeved on the outer side of the first driving shaft, a second shaft sleeve is sleeved on the outer side of the second driving shaft, a gear ring is sleeved on the outer side of 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 in transmission connection with the first sun gear and the gear ring respectively;
the motor is connected with second driving shaft rear end, second driving shaft front end is equipped with second planetary transmission mechanism, second bushing front end is equipped with the second sun gear, second planetary transmission mechanism is connected with second sun gear and ring gear transmission respectively, second bushing rear end is equipped with the second output, still be equipped with even axle mechanism between second driving shaft and the first driving shaft.
2. A hybrid vehicle powertrain as in claim 1, wherein: the first planetary transmission mechanism comprises a first planet carrier and a plurality of first planet wheels arranged on the first planet carrier, and the first planet wheels are positioned between a first sun gear and a gear ring and are respectively meshed with the first sun gear and the gear ring.
3. A hybrid vehicle powertrain as in claim 2, wherein: the second planetary transmission mechanism comprises a second planet carrier and a plurality of second planet wheels arranged on the second planet carrier, and the second planet wheels are arranged between the second sun wheel and the gear ring and are respectively meshed with the second sun wheel and the gear ring.
4. A hybrid vehicle powertrain as in 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 as in 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 coupler is arranged between the first coupling key and the second coupling key.
6. A hybrid vehicle powertrain as in claim 1, wherein: the starting motor is a 48V BSG motor.
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| CN202210054885.8A CN114475207B (en) | 2022-01-18 | 2022-01-18 | Hybrid electric vehicle driving system |
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| CN202210054885.8A CN114475207B (en) | 2022-01-18 | 2022-01-18 | Hybrid electric vehicle driving system |
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Cited By (1)
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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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