CN113442712B - Hybrid power driving system and vehicle - Google Patents
Hybrid power driving system and vehicle Download PDFInfo
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- CN113442712B CN113442712B CN202010226684.2A CN202010226684A CN113442712B CN 113442712 B CN113442712 B CN 113442712B CN 202010226684 A CN202010226684 A CN 202010226684A CN 113442712 B CN113442712 B CN 113442712B
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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
- B60K6/442—Series-parallel switching type
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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
A hybrid power driving system comprises a planetary gear device, an input shaft, an intermediate shaft, an engine, a generator, a driving motor, a first clutch, a second clutch, a braking device and a power battery; the planetary gear device comprises a sun gear, a planet carrier and a gear ring, wherein the planet carrier is provided with a planet gear which is respectively meshed with the sun gear and the gear ring, the sun gear is connected with the gear ring through a second clutch, the planet carrier is connected with an intermediate shaft, and the gear ring is connected with an input shaft; the engine is connected with the input shaft through the first clutch; the generator is connected with the input shaft; the driving motor is connected with the intermediate shaft; when in the series mode, the driving motor outputs power; in the parallel mode, the engine and the driving motor output power; the hybrid power driving system can be alternately driven in a series driving mode and a parallel driving mode, a time threshold value is set according to the temperatures of the generator and the power battery, and when the driving time is greater than or equal to the time threshold value, the current driving mode is switched to the other mode. The invention also relates to a vehicle.
Description
Technical Field
The invention relates to the technical field of hybrid driving, in particular to a hybrid power driving system and a vehicle.
Background
With the increasing demand of environmental protection and national energy strategy for reducing petroleum import, the development of environment-friendly and energy-saving automobiles becomes the development direction of the automobile industry.
In energy-saving automobiles and new energy automobiles, the technical bottlenecks of long charging time and short driving mileage in winter of pure electric automobiles are not broken through yet; the cost of the hydrogen fuel cell vehicle is high, and the construction of the hydrogenation infrastructure needs time. The hybrid electric vehicle can realize energy conservation and emission reduction even by utilizing the existing energy charging facilities, and is a relatively practical and feasible solution at present, so that various large vehicle enterprises launch or develop respective hybrid electric vehicle models.
The hybrid vehicle type realizes energy conservation, and needs to have multiple driving modes, such as a series driving mode and a parallel driving mode; in the series driving mode, the generator generates electricity through the engine, the electric energy generated by the generator is supplied to the driving motor, and the driving motor drives the wheels to meet the long-time wheel end driving requirement. If at this moment, when the wheel end needs a large driving force, in order to meet the wheel end driving requirement, the generator may work in an overload state, which causes the generator to have too high temperature and life decay, or causes the generator to have too high temperature and power reduction to run, and thus the continuous wheel end driving requirement of the automobile cannot be met. When parallelly connected drive mode, engine and driving motor simultaneous drive, driving motor is given with the electric energy to power battery, and driving motor turns into mechanical energy with the electric energy and exports to the wheel end to satisfy the long-time climbing demand of wheel end, under the state, power battery can be in the state of long-time discharge, probably leads to power battery insufficient voltage, can't provide the power requirement that satisfies the continuous drive of car wheel end.
Disclosure of Invention
In view of the above, the present invention provides a hybrid drive system, which can provide sufficient wheel-end driving force during long-time high-load driving, and can avoid life decay caused by over-temperature of a generator and a power battery during long-time high-load driving.
A hybrid power driving system comprises a planetary gear device, an input shaft, an intermediate shaft, an engine, a generator, a driving motor, a first clutch, a second clutch, a braking device and a power battery;
the planetary gear device comprises a sun gear, a planet carrier and a gear ring, wherein the planet carrier is provided with a planet gear which is respectively meshed with the sun gear and the gear ring, the sun gear is connected with the gear ring through a second clutch, the planet carrier is connected with an intermediate shaft and outputs power to a wheel end through the intermediate shaft, and the gear ring is connected with an input shaft;
the engine is connected with the input shaft through the first clutch;
the generator is connected with the input shaft;
the driving motor is connected with the intermediate shaft, and the intermediate shaft outputs power to the wheel end;
the power battery is respectively electrically connected with the generator and the driving motor;
the hybrid power driving system has a series driving mode and a parallel driving mode, and in the series driving mode, the engine drives the generator to generate power and drives the motor to output power by the electric energy provided by the generator; in the parallel driving mode, the braking device brakes the sun wheel, and the engine and the driving motor output power;
the hybrid drive system may alternately drive in a series drive mode and a parallel drive mode, a time threshold may be set according to a temperature of the generator and/or the power battery, and when the driving time is greater than or equal to the time threshold, a switch may be made from the current drive mode to another mode.
In an embodiment of the present invention, a first gear is fixed to the input shaft, the generator has a first output shaft, a second gear is fixed to the first output shaft, and the first gear and the second gear are engaged with each other.
In an embodiment of the present invention, a third gear and a fourth gear are fixed to the intermediate shaft, the driving motor has a second output shaft, a fifth gear is fixed to the second output shaft, the fifth gear is meshed with the third gear, and the fourth gear outputs power to a wheel end.
In an embodiment of the present invention, the hybrid drive system further includes a differential, wherein a differential gear is disposed on the differential, and the differential gear is meshed with the fourth gear.
In an embodiment of the present invention, in the series drive mode, the first clutch couples the engine and the input shaft, the brake device and the second clutch are not operated, and a part of the electric energy output by the generator is supplied to the driving motor and another part is stored in the power battery.
In an embodiment of the present invention, the parallel driving mode includes a parallel driving first-gear mode and a parallel driving second-gear mode, when the parallel driving first-gear mode is performed, the first clutch is coupled to the engine and the input shaft, the braking device brakes the sun gear, the generator and the second clutch are both not operated, and the engine and the driving motor output power.
In an embodiment of the present invention, in the parallel driving two-gear mode, the first clutch is coupled to the engine and the input shaft, the second clutches are both coupled to the sun gear and the ring gear, the generator and the braking device do not work, and the engine and the driving motor output power.
In an embodiment of the present invention, the hybrid drive system has a dual-motor drive first gear mode and a dual-motor drive second gear mode; when the double-motor driving first gear mode is adopted, the engine, the first clutch and the second clutch do not work, the braking device brakes the sun gear, the power battery provides electric energy for the generator and the driving motor, and the generator and the driving motor output power.
In an embodiment of the present invention, in the dual motor driven second gear mode, the second clutch is coupled to the sun gear and the ring gear, the engine, the first clutch and the brake device do not operate, the power battery provides electric energy for the generator and the driving motor, and the generator and the driving motor output power.
The invention also provides a vehicle comprising the hybrid power driving system.
The hybrid power driving system can provide sufficient wheel end driving force in long-time high-load running, and meanwhile, the service life attenuation caused by the over-temperature of the generator and the power battery in long-time high-load running can be avoided.
Drawings
Fig. 1 is a schematic configuration diagram of a hybrid drive system of the present invention.
FIG. 2 is a schematic representation of the hybrid drive system of the present invention in a series drive mode.
Fig. 3 and 4 are schematic diagrams of the hybrid drive system of the present invention in a parallel drive mode.
FIG. 5 is a schematic illustration of the torque distribution of the hybrid drive system of the present invention.
Detailed Description
Fig. 1 is a schematic configuration diagram of a hybrid drive system of the invention, fig. 2 is a schematic diagram of the hybrid drive system of the invention in a series drive mode, fig. 3 and 4 are schematic diagrams of the hybrid drive system of the invention in a parallel drive mode, fig. 5 is a schematic diagram of torque distribution of the hybrid drive system of the invention, as shown in fig. 1, 2, 3, 4 and 5, the hybrid drive system including a planetary gear device 11, an input shaft 12, an intermediate shaft 13, an engine 14, a generator 15, a drive motor 16, a first clutch 17, a second clutch 18, a brake device 19 and a power battery (not shown);
the planetary gear device 11 comprises a sun gear 111, a planet carrier 112 and a gear ring 114, wherein the planet carrier 112 is provided with a planet gear 113, the planet gear 113 is respectively meshed with the sun gear 111 and the gear ring 114, the sun gear 111 is connected with the gear ring 114 through a second clutch 18, the planet carrier 112 is connected with the intermediate shaft 13 and outputs power to a wheel end through the intermediate shaft 13, and the gear ring 114 is connected with the input shaft 12;
the engine 14 is connected to the input shaft 12 through a first clutch 17;
the generator 15 is connected with the input shaft 12;
the driving motor 16 is connected with the intermediate shaft 13, and the intermediate shaft 13 outputs power to a wheel end;
the power battery is respectively electrically connected with the generator 15 and the driving motor 16;
the hybrid power driving system has a series driving mode in which the engine 14 drives the generator 15 to generate power and drives the motor 16 to output power from the electric power supplied from the generator 15; in the parallel driving mode, the brake device 19 brakes the sun gear 111, and the engine 14 and the driving motor 16 output power;
the hybrid drive system may alternately drive in the series drive mode and the parallel drive mode, set a time threshold t according to the temperature of the generator 15 and/or the power battery, switch from the current drive mode to another mode when the drive time is greater than or equal to the time threshold t, for example, switch to the parallel drive mode when the time of driving in the series drive mode is greater than or equal to the time threshold t; and when the time of driving in the parallel driving mode is greater than or equal to a time threshold t, switching to the series driving mode, and repeating the steps until the stroke is finished.
In the embodiment, as shown in fig. 2, when the hybrid drive system is in the series drive mode, the generator 15 will increase in temperature with time, the power battery is in the non-operating state, and the power battery is cooled by its own cooling device to prepare for the next parallel drive mode, and in the series drive mode, there is the following power distribution relationship:
Pwheel＝PEM2
PEM2＝PEM1-Pbat-Pacc
PEM1＝PENG*ηEM1*ηt
the power required by the wheel end is completely from the driving motor 16, and the power of the driving motor 16 is completely provided by the electric energy generated by the generator 15 driven by the engine 14;
wherein, PEM1For power of generator 15, PEM2For driving motor 16 with power, PwheelFor the wheel end power demand, PENGFor engine 14 power, PbatFor power of the power cell, PaccFor loss of power of accessories, ηEM1For generator 15 efficiency, ηtThe transmission efficiency of the engine 14 to the generator 15.
When it is detected that the time for driving in the series driving mode is greater than or equal to the time threshold t, switching from the series driving mode to the parallel driving mode, restarting timing after switching, directly driving the wheels by the power of the engine 14, starting supplying power to the driving motor 16 by the power battery, reducing the output power of the driving motor 16 compared to the series driving mode, supplementing a part of the required power by the engine 14, coupling the power of the engine 14 and the driving motor 16 at the intermediate shaft 13, and driving the wheels, as shown in fig. 3 and 4, in the parallel driving mode, the following power distribution relationship is present:
Pwheel＝PEM2+PENG
PEM2＝Pbat
the power demand at the wheel end is provided by the drive motor 16 and the engine 14 together; in the parallel driving mode, the temperature of the power battery increases along with the increase of time, the generator 15 is in a stop state, and the generator 15 is cooled by a cooling device of the generator 15 to prepare for the next series mode.
When the time for driving in the parallel driving mode is detected to be greater than or equal to the time threshold t, the parallel driving mode is switched to the series driving mode, the output power of the engine 14 is increased to drive the generator 15 to generate power, the power of the driving motor 16 is increased to meet the driving requirement of the wheel end, and the operation is repeated until the driving process is finished.
Therefore, the hybrid drive system of the invention can provide sufficient wheel-end driving force during long-time high-load running, while avoiding life decay due to over-temperature of the generator 15 and the power battery during long-time high-load running.
It should be noted that the length of the time threshold t can be freely set according to practical situations, for example, 30min is required for the generator 15 and/or the power battery to operate from a low temperature to a high temperature when the generator 15 and/or the power battery starts to operate, and if the generator 15 and/or the power battery continues to operate at a high temperature, the life of the generator 15 and/or the power battery may be attenuated, so that it is necessary to switch the driving mode to avoid the life attenuation caused by the over-temperature of the generator 15 and the power battery during long-time high-load driving, that is, when the driving time is greater than or equal to 30min, the parallel driving mode is switched to the series driving mode, or the series driving mode is switched to the parallel driving mode.
Further, a first gear 121 is fixed on the input shaft 12, the generator 15 has a first output shaft 151, a second gear 152 is fixed on the first output shaft 151, and the first gear 121 and the second gear 152 are engaged with each other.
Further, a third gear 131 and a fourth gear 132 are fixed on the intermediate shaft 13, the driving motor 16 has a second output shaft 161, a fifth gear 162 is fixed on the second output shaft 161, the fifth gear 162 is meshed with the third gear 131, and the fourth gear 132 outputs power to the wheel end.
Further, the hybrid drive system further includes a differential 21, a differential gear 211 is disposed on the differential 21, and the differential gear 211 and the fourth gear 132 are meshed with each other.
Further, in the series driving mode, the first clutch 17 is coupled to the engine 14 and the input shaft 12, the brake device 19 and the second clutch 18 are not operated, and a part of the electric energy output from the generator 15 is supplied to the driving motor 16 and another part is stored in the power battery. In the present embodiment, in the series drive mode, there is only one power output path, i.e., the driving motor 16 outputs power to the third gear 131 through the second output shaft 161 and the fifth gear 162, and from the fourth gear 132 to the differential gear 211, and finally to the wheel end through the differential 21.
Further, the parallel driving mode includes a parallel driving first-gear mode in which the first clutch 17 engages the engine 14 and the input shaft 12, the brake device 19 brakes the sun gear 111, neither the generator 15 nor the second clutch 18 is operated, and the engine 14 and the driving motor 16 output power, and a parallel driving second-gear mode, as shown in fig. 3. In the embodiment, in the parallel driving first gear mode, two power output paths are provided, one of the two power output paths is used for outputting power from the engine 14 to the third gear 131 through the input shaft 12, the ring gear 114, the planet gears 113 and the planet carrier 112, and outputting power from the fourth gear 132 to the differential gear 211, and finally outputting power from the differential 21 to the wheel end; the other is driven by the driving motor 16 to output power to the third gear 131 through the second output shaft 161 and the fifth gear 162, and from the fourth gear 132 to the differential gear 211, and finally to output power to the wheel end from the differential 21.
Further, in the parallel drive two-gear mode, the first clutch 17 engages the engine 14 and the input shaft 12, the second clutches 18 engage the sun gear 111 and the ring gear 114, the generator 15 and the brake device 19 do not work, and the engine 14 and the drive motor 16 output power, as shown in fig. 4. In the present embodiment, in the parallel driving two-gear mode, there are two power output paths, one from the engine 14 to the entire planetary gear device 11 through the input shaft 12, and the speed ratio is 1, the planet carrier 112 outputs power to the third gear 131, from the fourth gear 132 to the differential gear 211, and finally from the differential 21 to the wheel end; the other is driven by the driving motor 16 to output power to the third gear 131 through the second output shaft 161 and the fifth gear 162, and from the fourth gear 132 to the differential gear 211, and finally to output power to the wheel end from the differential 21.
Further, the hybrid power driving system is provided with a dual-motor driving first gear mode and a dual-motor driving second gear mode; in the dual-motor drive first-gear mode, the engine 14, the first clutch 17 and the second clutch 18 are not operated, the brake device 19 brakes the sun gear 111, the power battery supplies electric energy to the generator 15 and the driving motor 16, and the generator 15 and the driving motor 16 output power. In the present embodiment, in the dual-motor-driven first-gear mode, there are two power output paths, one of which is output from the generator 15 to the third gear 131 through the first output shaft 151, the second gear 152, the ring gear 114 and the carrier 112, and from the fourth gear 132 to the differential gear 211, and finally from the differential 21 to the wheel end; the other is driven by the driving motor 16 to output power to the third gear 131 through the second output shaft 161 and the fifth gear 162, and from the fourth gear 132 to the differential gear 211, and finally to output power to the wheel end from the differential 21.
Further, in the two-motor drive second gear mode, the second clutch 18 is combined with the sun gear 111 and the ring gear 114, the engine 14, the first clutch 17 and the brake device 19 are not operated, the power battery supplies electric energy to the generator 15 and the driving motor 16, and the generator 15 and the driving motor 16 output power. In the present embodiment, in the dual-motor driven second gear mode, there are two power output paths, one is from the generator 15 to the whole planetary gear device 11 through the first output shaft 151 and the second gear 152, the speed ratio is 1, the planet carrier 112 outputs power to the third gear 131, the fourth gear 132 to the differential gear 211, and finally the differential 21 outputs power to the wheel end; the other is driven by the driving motor 16 to output power to the third gear 131 through the second output shaft 161 and the fifth gear 162, and from the fourth gear 132 to the differential gear 211, and finally to output power to the wheel end from the differential 21.
The hybrid power driving system can actively switch the driving mode according to the SOC value of the battery, the vehicle speed and the like, so that better power economy is realized in the full vehicle speed section.
The present invention also relates to a vehicle including the hybrid power driving system, and please refer to the prior art for the structure of the vehicle, which is not described herein again.
The present invention is not limited to the specific details of the above-described embodiments, and various simple modifications may be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention. The various features described in the foregoing detailed description may be combined in any suitable manner without departing from the scope of the invention. The invention is not described in detail in order to avoid unnecessary repetition.
Claims (10)
1. A hybrid drive system, comprising:
the device comprises a planetary gear device, an input shaft, an intermediate shaft, an engine, a generator, a driving motor, a first clutch, a second clutch, a braking device and a power battery;
the planetary gear device comprises a sun gear, a planet carrier and a gear ring, wherein the planet carrier is provided with a planet gear which is respectively meshed with the sun gear and the gear ring, the sun gear is connected with the gear ring through the second clutch, the planet carrier is connected with the intermediate shaft and outputs power to a wheel end through the intermediate shaft, and the gear ring is connected with the input shaft;
the engine is connected with the input shaft through the first clutch;
the generator is connected with the input shaft;
the driving motor is connected with the intermediate shaft, and the intermediate shaft outputs power to a wheel end;
the power battery is electrically connected with the generator and the driving motor respectively;
the hybrid power driving system has a series driving mode and a parallel driving mode, in the series driving mode, the engine drives the generator to generate power, and the driving motor outputs power by the electric energy provided by the generator; in the parallel driving mode, the braking device brakes the sun gear, and the engine and the driving motor output power;
the hybrid drive system may alternately drive in the series drive mode and the parallel drive mode, set a time threshold according to a temperature of the generator and/or the power battery, and switch from a current drive mode to another mode when a driving time is greater than or equal to the time threshold.
2. A hybrid drive system as set forth in claim 1 wherein a first gear is fixed to said input shaft and said generator has a first output shaft, a second gear is fixed to said first output shaft, and said first gear intermeshes with said second gear.
3. A hybrid drive system as set forth in claim 1 wherein a third gear and a fourth gear are fixed to said countershaft, said drive motor having a second output shaft with a fifth gear fixed to said second output shaft, said fifth gear intermeshed with said third gear, said fourth gear outputting power to the wheel end.
4. A hybrid drive system as set forth in claim 3 further comprising a differential having a differential gear disposed thereon, said differential gear intermeshed with said fourth gear.
5. A hybrid drive system as set forth in claim 1 wherein said first clutch couples said engine and said input shaft, said brake device and said second clutch are not operated, and a portion of the electrical energy output from said generator is supplied to said drive motor and another portion is stored in said power cell during said series drive mode.
6. The hybrid drive system according to claim 1, wherein the parallel drive mode includes a parallel drive first-speed mode in which the first clutch engages the engine and the input shaft, and a parallel drive second-speed mode in which the brake device brakes the sun gear, the generator and the second clutch are not operated, and the engine and the drive motor output power.
7. The hybrid drive system of claim 6, wherein in the parallel drive two-gear mode, the first clutch engages the engine and the input shaft, the second clutches both engage the sun gear and the ring gear, neither the generator nor the brake is active, and the engine and the drive motor output power.
8. A hybrid drive system as set forth in claim 1 wherein said hybrid drive system has a dual motor drive first gear mode and a dual motor drive second gear mode; when the double-motor driving first gear mode is adopted, the engine, the first clutch and the second clutch do not work, the braking device brakes the sun gear, the power battery provides electric energy for the generator and the driving motor, and the generator and the driving motor output power.
9. The hybrid drive system of claim 8, wherein in said two-motor drive second gear mode, said second clutch engages said sun gear and said ring gear, said engine, said first clutch and said brake are not engaged, said power battery provides electrical power to said generator and said drive motor, and said generator and said drive motor output power.
10. A vehicle characterized by comprising the hybrid drive system of any one of claims 1 to 9.
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| CN202010226684.2A CN113442712B (en) | 2020-03-27 | 2020-03-27 | Hybrid power driving system and vehicle |
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| CN202010226684.2A CN113442712B (en) | 2020-03-27 | 2020-03-27 | Hybrid power driving system and vehicle |
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| CN113442712B true CN113442712B (en) | 2022-04-01 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107683231A (en) * | 2015-06-09 | 2018-02-09 | 日产自动车株式会社 | The Mode change control device of motor vehicle driven by mixed power |
| CN107878443A (en) * | 2016-09-29 | 2018-04-06 | 三菱自动车工业株式会社 | The control device of motor vehicle driven by mixed power |
| CN110857027A (en) * | 2018-08-22 | 2020-03-03 | 广州汽车集团股份有限公司 | Hybrid power drive system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107683231A (en) * | 2015-06-09 | 2018-02-09 | 日产自动车株式会社 | The Mode change control device of motor vehicle driven by mixed power |
| CN107878443A (en) * | 2016-09-29 | 2018-04-06 | 三菱自动车工业株式会社 | The control device of motor vehicle driven by mixed power |
| CN110857027A (en) * | 2018-08-22 | 2020-03-03 | 广州汽车集团股份有限公司 | Hybrid power drive system |
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