CN215360911U - Planetary hybrid drive for a motor vehicle - Google Patents
Planetary hybrid drive for a motor vehicle Download PDFInfo
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- CN215360911U CN215360911U CN202121472405.7U CN202121472405U CN215360911U CN 215360911 U CN215360911 U CN 215360911U CN 202121472405 U CN202121472405 U CN 202121472405U CN 215360911 U CN215360911 U CN 215360911U
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Abstract
A planetary hybrid power transmission device of a motor vehicle comprises an engine and a driving motor, wherein a gear ring of a planetary gear mechanism is fixedly arranged in a rotor of the driving motor and is connected with a hollow transmission shaft, a transmission main shaft penetrates through the hollow transmission shaft to form a concentric shaft and forms sliding fit with the hollow transmission shaft, a crankshaft of the engine is connected with a planet carrier of the planetary gear mechanism through an input shaft, the planet carrier is connected with the transmission main shaft through a clutch, a driving friction component of the clutch is connected with the planet carrier, a driven friction component is connected with the transmission main shaft, a planet gear of the planetary gear mechanism is arranged between the gear ring and a sun gear, a sun gear shaft of the sun gear is sleeved on the input shaft to form the concentric shaft, the sun gear shaft is connected with a brake, the driving friction component of the brake is fixed in a box of the planetary hybrid power transmission device, the driven friction component is connected with the sun gear shaft, an output shaft, an input shaft and a transmission main shaft are all positioned on the same axial line, and a transmission auxiliary shaft and the output shaft are arranged in parallel.
Description
Technical Field
The utility model relates to the field of hybrid electric vehicles, in particular to a planetary hybrid power transmission device of a motor vehicle.
Background
At present, most hybrid electric vehicles adopt oil-electricity hybrid power transmission devices, and most oil-electricity hybrid power transmission devices adopt a dual-motor structure, namely, the oil-electricity hybrid power transmission devices comprise an engine obtaining power from fuel oil and a driving motor running by electric power, and a generator is additionally arranged, the generator utilizes the power generated by the running of the motor vehicle to provide electric energy for the motor vehicle, and after the engine stops, the driving motor is utilized to drive the motor vehicle to run, so that the exhaust emission of the motor vehicle is reduced, and the environment is protected. The connection and control among the engine, the generator, and the driving motor have a direct influence on the traveling performance of the hybrid vehicle.
US patent publication No. 20210053434 a1, hybrid and motor drive transmission for electric power systems and method of operating the same, discloses a transmission for a power system that includes a first electric motor EM1, a second electric motor EM2, a single planetary gear PG, and a reduction gear transmission. The transmission is equipped with a brake B1 and two clutches C1, C2, and is capable of achieving a two-speed motor drive mode and meeting the low-speed, high-torque and high-speed use requirements of the motor drive. During hybrid drive, input power split and fixed ratio modes are employed to achieve efficient operation of the electric power system. However, the technical scheme in the patent adopts a plurality of clutches, a brake and a planetary mechanism to be mutually matched to realize hybrid power driving, pure electric driving gears and fuel oil driving gears are few, the hybrid mode and the function which can be realized by the hybrid mode are single, and the hybrid mode is used for vehicles with rich functions and environmental requirements, cannot effectively optimize fuel oil economy, and is not beneficial to rich economic power distribution.
Disclosure of Invention
The utility model aims to provide a planetary hybrid power transmission device of a motor vehicle, aiming at the corresponding defects of the prior art, the planetary gear mechanism is utilized to shunt the power of an engine and a driving motor, the number of pure electric driving gears and fuel oil driving gears is increased, and the planetary hybrid power transmission device is used for vehicles with rich functions and environmental requirements, can effectively optimize the fuel oil economy and is beneficial to rich economic power distribution.
The purpose of the utility model is realized by adopting the following scheme: a planetary hybrid power transmission device of a motor vehicle comprises an engine and a driving motor, wherein a gear ring of a planetary gear mechanism is fixedly arranged in a rotor of the driving motor and is connected with a hollow transmission shaft, a transmission main shaft penetrates through the hollow transmission shaft to form a concentric shaft and forms sliding fit with the hollow transmission shaft, a crankshaft of the engine is connected with a planet carrier of the planetary gear mechanism through an input shaft, the planet carrier is connected with the transmission main shaft through a clutch, a driving friction component of the clutch is connected with the planet carrier, a driven friction component is connected with the transmission main shaft, a planet gear of the planetary gear mechanism is arranged between the gear ring and a sun gear, a sun gear shaft of the sun gear is sleeved on the input shaft in an empty mode to form a concentric shaft, the sun gear shaft is connected with a brake, and the driving friction component of the brake is fixed in a box body of the planetary hybrid power transmission device, the driven friction component is connected with the sun wheel shaft, an output shaft, the input shaft and the transmission main shaft are all positioned on the same axial line, and a transmission auxiliary shaft and the output shaft are arranged in parallel;
a first gear is circumferentially fixed on the hollow transmission shaft, a third gear is arranged on the transmission main shaft in an empty sleeve manner, and a first synchronizer is arranged between the first gear and the third gear and is circumferentially fixed on the transmission main shaft;
a fifth gear is sleeved on the output shaft in an empty mode, a third synchronizer is arranged between the third gear and the fifth gear and circumferentially fixed on the output shaft, a left gear ring of the third synchronizer is circumferentially fixed on the transmission main shaft, and a seventh gear is circumferentially fixed on the output shaft;
a second gear and a fourth gear are circumferentially fixed on the transmission auxiliary shaft, a sixth gear and an eighth gear are arranged on the transmission auxiliary shaft in an empty sleeve mode, and a second synchronizer is arranged between the sixth gear and the eighth gear and is circumferentially fixed on the transmission auxiliary shaft;
the first gear is meshed with the second gear, the third gear is meshed with the fourth gear, the fifth gear is meshed with the sixth gear, and the seventh gear is meshed with the eighth gear.
A motor shaft of a generator is sleeved on the input shaft in a hollow way and is connected with the sun wheel shaft.
By adopting the scheme, a gear ring of a planetary gear mechanism is fixedly arranged in a rotor of a driving motor and is connected with a hollow transmission shaft, a transmission main shaft penetrates through the hollow transmission shaft to form a concentric shaft and forms sliding fit with the hollow transmission shaft, a crankshaft of an engine is connected with a planet carrier of a planetary gear mechanism through an input shaft, the planet carrier is connected with the transmission main shaft through a clutch, a driving friction component of the clutch is connected with the planet carrier, a driven friction component is connected with the transmission main shaft, a planet gear of the planetary gear mechanism is arranged between the gear ring and a sun gear, a sun gear shaft of the sun gear is sleeved on the input shaft in an empty mode to form a concentric shaft, the sun gear shaft is connected with a brake, the driving friction component of the brake is fixed in a box of a planetary hybrid power transmission device, the driven friction component is connected with the sun gear shaft, and an output shaft, the hollow transmission shaft and the hollow transmission shaft are connected with the brake, The transmission main shaft is located on the same axis, the transmission auxiliary shaft is arranged in parallel with the output shaft, power of the engine and the driving motor is divided by the aid of the planetary gear mechanism, the number of pure electric driving gears and fuel oil driving gears is increased, and the transmission main shaft is used for vehicles with rich functions and environmental requirements, fuel oil economy can be optimized more effectively, and rich economic power distribution is facilitated.
A motor shaft of the generator is sleeved on the input shaft in a hollow mode and is connected with the sun gear shaft, and the generator is used for generating electricity by utilizing power transmitted from the sun gear shaft.
The advantages of the utility model are as follows:
1. according to the technical scheme, the two motors can realize the idle speed power generation function, and the hybrid power system has richer hybrid power function selection modes.
2. According to the technical scheme, the driving motor can compensate for power interruption generated by gear switching when fuel power driving is carried out, and better comfort and power performance are achieved.
3. The utility model has simple structure, clear purpose of participating functional parts and low cost, and is beneficial to the integrated matching of the hybrid power system vehicle;
4. the technical scheme of the utility model has good expansibility, can realize more reasonable modularization and platform development, and can meet the requirements of more vehicle types;
5. the technical scheme of the utility model can meet the requirements of a multi-gear power transmission system of the engine and the motor, and can select the driving motor with smaller torque requirement.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural diagram of an embodiment of the present invention.
Detailed Description
As shown in fig. 1 to 2, a planetary hybrid power transmission device for a motor vehicle comprises an engine 1, a driving motor 2, a ring gear X3 of a planetary gear mechanism fixedly arranged in a rotor of the driving motor 2 and connected with a hollow transmission shaft Z5, a transmission main shaft Z2 passing through the hollow transmission shaft Z5 to form a concentric shaft and forming a sliding fit with the hollow transmission shaft Z5, a crankshaft of the engine 1 is connected with a planet carrier X4 of the planetary gear mechanism through an input shaft Z1, the planet carrier X4 is connected with the transmission main shaft Z2 through a clutch C1, a driving friction component of the clutch C1 is connected with the planet carrier X4, a driven friction component is connected with the transmission main shaft Z2, a planet gear X2 of the planetary gear mechanism is arranged between the ring gear X3 and a sun gear X1, a sun gear X6 of the sun gear X1 is hollow sleeved on the input shaft Z1 to form a concentric shaft, and the sun gear shaft X6 is connected with a brake B1, the driving friction component of the brake B1 is fixed in the planetary hybrid power transmission device box, the driven friction component is connected with the sun gear shaft X6, an output shaft Z4, an input shaft Z1 and a transmission main shaft Z2 are all positioned on the same axial line, and a transmission auxiliary shaft Z3 and an output shaft Z4 are arranged in parallel;
a first gear G1 is circumferentially fixed on the hollow transmission shaft Z5, a third gear G3 is arranged on the transmission main shaft Z2 in an empty sleeve mode, and a first synchronizer T1 is arranged between the first gear G1 and the third gear G3 and is circumferentially fixed on the transmission main shaft Z2;
a fifth gear G5 is sleeved on the output shaft Z4 in an empty manner, a third synchronizer T3 is arranged between the third gear G3 and the fifth gear G5 and is circumferentially fixed on the output shaft Z4, a left gear ring of the third synchronizer T3 is circumferentially fixed on a transmission main shaft Z2, and a seventh gear G7 is circumferentially fixed on the output shaft Z4;
a second gear G2 and a fourth gear G4 are circumferentially fixed on the transmission countershaft Z3, a sixth gear G6 and an eighth gear G8 are arranged on the transmission countershaft Z3 in an empty sleeve mode, and a second synchronizer T2 is arranged between the sixth gear G6 and the eighth gear G8 and is circumferentially fixed on a transmission countershaft Z3;
the first gear G1 is meshed with a second gear G2, the third gear G3 is meshed with a fourth gear G4, the fifth gear G5 is meshed with a sixth gear G6, and the seventh gear G7 is meshed with an eighth gear G8.
In this embodiment, a motor shaft of the generator 3 is sleeved on the input shaft Z1 and connected with the sun gear shaft X6, so as to generate electricity by using the power of the engine 1.
The input shaft Z1, the transmission main shaft Z2, the transmission auxiliary shaft Z3, the output shaft Z4 and the hollow transmission shaft Z5 are supported in a planetary hybrid power transmission device box body through bearings.
The running mode of the hybrid electric vehicle adopting the scheme is as follows:
engine only mode:
the power of the engine 1 is mutually matched through the clutch C1, the brake B1, the first synchronizer T1, the second synchronizer T2 and the third synchronizer T3, 9 driving gears including a direct driving gear can be realized, and the function of the AMT automatic transmission is realized.
Pure electric mode:
the power of the driving motor 2 is mutually matched through a first synchronizer T1, a second synchronizer T2 and a third synchronizer T3, 4 pure electric driving gears can be realized, and gear selection can be carried out according to requirements such as motor states in the driving process.
Hybrid drive mode:
the power of the engine 1 and the driving motor 2 is mutually matched through the clutch C1, the brake B1, the first synchronizer T1, the second synchronizer T2 and the third synchronizer T3, so that 9 fuel driving gears and 4 pure electric driving gears including a direct driving gear can be realized, in the driving process, the power of the driving motor 2 can assist the power of the engine 1 to realize unpowered interruption gear shifting, and the power is more sufficient, so that the electric vehicle has better comfort and smoothness.
An idle mode:
through the mutual cooperation of the clutch C1, the brake B1 and the first synchronizer T1, the selection of two idle gears can be realized, and if the generator 3 is not arranged, the power of the engine 1 can enable the driving motor 2 to generate power through the two idle gears.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and modifications of the present invention by those skilled in the art are within the scope of the present invention without departing from the spirit of the present invention.
Claims (2)
1. A planetary hybrid power transmission device of a motor vehicle comprises an engine (1) and a driving motor (2), and is characterized in that a gear ring (X3) of a planetary gear mechanism is fixedly arranged in a rotor of the driving motor (2) and is connected with a hollow transmission shaft (Z5), a transmission main shaft (Z2) penetrates through the hollow transmission shaft (Z5) to form a concentric shaft and forms a sliding fit with the hollow transmission shaft (Z5), a crankshaft of the engine (1) is connected with a planet carrier (X4) of the planetary gear mechanism through an input shaft (Z1), the planet carrier (X4) is connected with the transmission main shaft (Z2) through a clutch (C1), a driving friction assembly of the clutch (C1) is connected with a planet carrier (X4), a driven friction assembly is connected with the transmission main shaft (Z2), and planet gears (X2) of the planetary gear mechanism are arranged between the gear ring (X3) and a sun gear (X1), a sun wheel shaft (X6) of the sun wheel (X1) is sleeved on an input shaft (Z1) in a hollow mode to form a concentric shaft, the sun wheel shaft (X6) is connected with a brake (B1), a driving friction component of the brake (B1) is fixed in a box body of the planetary hybrid power transmission device, a driven friction component is connected with the sun wheel shaft (X6), an output shaft (Z4), the input shaft (Z1) and a transmission main shaft (Z2) are located on the same axial line, and a transmission auxiliary shaft (Z3) and the output shaft (Z4) are arranged in parallel;
a first gear (G1) is circumferentially fixed on the hollow transmission shaft (Z5), a third gear (G3) is arranged on the transmission main shaft (Z2) in an empty sleeve mode, and a first synchronizer (T1) is arranged between the first gear (G1) and the third gear (G3) and is circumferentially fixed on the transmission main shaft (Z2);
a fifth gear (G5) is sleeved on the output shaft (Z4) in an empty manner, a third synchronizer (T3) is arranged between the third gear (G3) and the fifth gear (G5) and is circumferentially fixed on the output shaft (Z4), a left gear ring of the third synchronizer (T3) is circumferentially fixed on a transmission main shaft (Z2), and a seventh gear (G7) is circumferentially fixed on the output shaft (Z4);
a second gear (G2) and a fourth gear (G4) are circumferentially fixed on the transmission countershaft (Z3), a sixth gear (G6) and an eighth gear (G8) are arranged on the transmission countershaft (Z3) in an empty sleeve mode, and a second synchronizer (T2) is arranged between the sixth gear (G6) and the eighth gear (G8) and is circumferentially fixed on the transmission countershaft (Z3);
the first gear (G1) is meshed with a second gear (G2), the third gear (G3) is meshed with a fourth gear (G4), the fifth gear (G5) is meshed with a sixth gear (G6), and the seventh gear (G7) is meshed with an eighth gear (G8).
2. The planetary hybrid transmission as defined in claim 1, wherein: a motor shaft of the generator (3) is sleeved on the input shaft (Z1) in a hollow mode and is connected with the sun gear shaft (X6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121472405.7U CN215360911U (en) | 2021-06-30 | 2021-06-30 | Planetary hybrid drive for a motor vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121472405.7U CN215360911U (en) | 2021-06-30 | 2021-06-30 | Planetary hybrid drive for a motor vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215360911U true CN215360911U (en) | 2021-12-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121472405.7U Active CN215360911U (en) | 2021-06-30 | 2021-06-30 | Planetary hybrid drive for a motor vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215360911U (en) |
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2021
- 2021-06-30 CN CN202121472405.7U patent/CN215360911U/en active Active
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