CN213594082U - Plug-in hybrid power system - Google Patents
Plug-in hybrid power system Download PDFInfo
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- CN213594082U CN213594082U CN202020608349.4U CN202020608349U CN213594082U CN 213594082 U CN213594082 U CN 213594082U CN 202020608349 U CN202020608349 U CN 202020608349U CN 213594082 U CN213594082 U CN 213594082U
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- differential mechanism
- reduction gear
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Abstract
The utility model relates to a plug-in hybrid power system, which comprises an engine; a battery pack; the oil tank is communicated with the engine; the driving transmission component comprises a transmission shell, a generator, a driving motor and a differential mechanism, wherein the generator, the driving motor and the differential mechanism are arranged in the transmission shell, the generator and the engine are connected in a non-coaxial mode through a pair of reduction gears, the generator is connected with the driving motor, the driving motor is connected with the differential mechanism through a pair of main reduction gears, the differential mechanism is connected with a front wheel of an automobile through a driving shaft, and a battery pack is respectively connected with the generator and the driving motor. The utility model has the advantages of as follows: the generator is guaranteed to generate power in the optimal and most stable state in the efficient power generation interval, and the generator has the advantages of economy and dynamic performance.
Description
The technical field is as follows:
the utility model belongs to the automotive power field, concretely relates to plug-in hybrid power system.
Background art:
at present, the pure electric automobile cannot solve the problems of long-term mileage, high battery cost and the like, the market acceptance is low under the condition of no government subsidy, and a hybrid electric automobile and an extended-range electric automobile appear at present aiming at the problem of long-term mileage. The hybrid electric vehicle has the working principle that a fuel engine is used for directly driving the vehicle, redundant energy is generated and stored, and the stored electric quantity can drive the vehicle to run through a driving motor when the vehicle runs at a low speed. However, the structure design needs to be additionally provided with a gearbox to realize the hybrid function. Because the gearbox comprises parts such as gearbox shell, jackshaft, reverse shaft, planetary gear, bearing, operating mechanism etc. and is bulky, and the structure is complicated, and manufacturing cost is high, is unfavorable for cost reduction and lightweight design theory of car.
For example, patent No. 201510164818.1 discloses a control method of a plug-in hybrid system, as shown in fig. 2, wherein the plug-in hybrid system includes an engine (10) and a gearbox (20) mounted on a first shaft (1), a motor (30) mounted on a second shaft (2), a differential mechanism and a power battery (60), the differential mechanism includes a gearbox and a differential (50), the power system must coaxially connect an input shaft (21) of the gearbox (20) and an output shaft (11) of the engine (10) when being arranged, and has certain limitation on cabin arrangement, the patent cancels the existing motor between the engine and the gearbox for realizing structural compactness, and uses the motor (30) of the second shaft (2) for realizing hybrid driving, so that the energy of the engine power system and the motor power system cannot realize effective coupling during power supply and conversion, it will cause a waste of engine energy.
Secondly, the engine (10) and the gearbox (20) which are arranged on the first shaft (1), and the motor (30) and the difference reducing mechanism which are arranged on the second shaft (2) form two independent modes for providing battery power, the two structures have large volumes and cannot be integrated, the energy of the whole power system cannot be effectively stored in the power providing and converting process, and when the energy is respectively transmitted to the gearbox (20) and the difference reducing mechanism, redundant energy is consumed.
For another example, patent No. 2017103742454 discloses an extended range hybrid system, as shown in fig. 3, in which an ISG motor (2) is arranged coaxially with an engine (3) and a generator. However, the economical oil consumption operation speed of the engine is generally 2000-3000rmp, the high-efficiency power generation speed of the generator is about 2-2.5 times of that of the engine, and when the generator is coaxially connected with the engine, the high-efficiency work interval of the generator under the condition of low oil consumption of the engine cannot be ensured, and the optimal power effect cannot be achieved.
Therefore, the existing plug-in hybrid power system and the extended range hybrid power system which are mixed strongly have defects in arrangement structure and energy transmission control method.
The utility model has the following contents:
the utility model aims at overcoming above not enough, providing a plug-in hybrid power system, guaranteeing that the generator realizes the electricity generation under the best most stable state in high-efficient electricity generation interval, gain beneficial effect in the aspect of economic nature and dynamic property.
The purpose of the utility model is realized through the following technical scheme: a plug-in hybrid power system includes
An engine;
a battery pack;
the oil tank is communicated with the engine;
the driving transmission component comprises a transmission shell, a generator, a driving motor and a differential mechanism, wherein the generator, the driving motor and the differential mechanism are arranged in the transmission shell, the generator and the engine are connected in a non-coaxial mode through a pair of reduction gears, the generator is connected with the driving motor, the driving motor is connected with the differential mechanism through a pair of main reduction gears, the differential mechanism is connected with a front wheel of an automobile through a driving shaft, and a battery pack is respectively connected with the generator and the driving motor.
The utility model discloses a further improvement lies in: the output end a of a crankshaft of the engine is connected with a reduction gear, the input end a of the generator is connected with another reduction gear, the pair of reduction gears realize transmission through the first shaft, and when the engine runs, power is transmitted to the generator through the output end a of the crankshaft, the first shaft and the input end a of the generator in sequence.
The utility model discloses a further improvement lies in: the output end b of the driving motor is connected with one main reduction gear, the input end b of the differential mechanism is connected with the other main reduction gear, the pair of main reduction gears are meshed with each other to realize transmission, the differential mechanism is connected with the front wheel of the automobile through a driving shaft, and power obtained by the driving motor sequentially passes through the output end b of the driving motor, the main reduction gear and the input end b of the differential mechanism to the driving shaft and finally drives the front wheel to rotate.
The utility model discloses a further improvement lies in: the generator is connected with the driving motor, the battery pack is connected with the generator, and the battery pack is connected with the driving motor through the electric control module.
The utility model discloses a further improvement lies in: the transmission shell is connected with the engine and then integrally arranged in the engine room of the automobile.
The utility model discloses a further improvement lies in: the generator, the driving motor and the differential are arranged in the upper space and the lower space.
Compared with the prior art, the utility model has the following advantage:
1. the utility model discloses do not set up the gearbox, add generator and driving motor, the engine realizes non-coaxial-type with the generator and is connected, and the engine makes the generator provide better power for driving motor under equal rotational speed, guarantees that the generator realizes the electricity generation under the optimum most stable state in the high-efficient electricity generation interval, cancels the gearbox that original structure is complicated simultaneously, gains beneficial effect on compact structure and assembly equally.
2. The design enables the engine, the generator and the driving motor to realize high integration in structure, improves the structural compactness, releases and stores energy at the driving motor, charges the battery pack with redundant energy, and has beneficial effects in the aspects of economy and dynamic property; importantly, when the automobile is in a braking state, the driving motor converts braking mechanical energy into electric energy, and finally the battery pack is charged to achieve energy recovery.
Description of the drawings:
fig. 1 is a structural frame diagram of a plug-in hybrid power system according to the present invention.
Fig. 2 is a structural frame diagram of the prior art.
Fig. 3 is a schematic structural diagram of the prior art.
Reference numbers in the figures: 1-engine, 2-reduction gear, 3-generator, 4-driving motor, 5-transmission shell, 6-differential, 7-driving shaft, 8-front wheel, 9-battery pack, 10-oil tank, 11-main reduction gear, 12-output end a, 13-input end a, 14-output end b and 15-input end b.
The specific implementation mode is as follows:
in order to deepen the understanding of the present invention, the present invention will be further described in detail with reference to the following embodiments and the attached drawings, and the embodiments are only used for explaining the present invention, and do not constitute the limitation to the protection scope of the present invention.
FIG. 1 illustrates an embodiment of a plug-in hybrid system, comprising
An engine 1;
a battery pack 9;
an oil tank 10, the oil tank 10 communicates with engine 1;
the driving transmission component comprises a transmission shell 5, a generator 3, a driving motor 4 and a differential mechanism 6, wherein the generator 3, the driving motor 4 and the differential mechanism 6 are arranged in the transmission shell 5, the generator 3 and the engine 1 are connected in a non-coaxial mode through a pair of reduction gears 2, the generator 3 is connected with the driving motor 4, the driving motor 4 is connected with the differential mechanism 6 through a pair of main reduction gears 11, the differential mechanism 6 is connected with a front wheel 8 of an automobile through a driving shaft 7, and a battery pack 9 is respectively connected with the generator 3 and the driving motor 4.
The output end a12 of the crankshaft of the engine 1 is connected with one reduction gear 2, the input end a13 of the generator 3 is connected with the other reduction gear 2, the pair of reduction gears 2 are meshed with each other to realize transmission, and when the engine 1 runs, power passes through the output end a12 of the crankshaft and the input end a13 of the generator 3 to the generator 3 in sequence.
An output end b14 of the driving motor 4 is connected with a main reduction gear 11, an input end b15 of the differential 6 is connected with another main reduction gear 11, a pair of main reduction gears 11 are meshed with each other to realize transmission, the differential 6 is connected with a front wheel 8 of an automobile through a driving shaft 7, and power obtained by the driving motor 4 sequentially passes through an output end b14 of the driving motor 4, the main reduction gear 11 and an input end b15 of the differential 6 to the driving shaft 7 to finally drive the front wheel 8 to rotate.
The pure electric mode specifically comprises the following steps: when the engine 1 does not work, the battery pack 9 transmits energy flow to the main reduction gear 11 and the differential mechanism 6 through the driving motor 4, and the differential mechanism 6 drives the front wheels 8 to rotate through the driving shaft 7.
The mixed mode specifically comprises: the engine 1 and the battery pack 9 are both used for providing power for the driving motor 4, part of power of the driving motor 4 runs through the engine 1, energy flow sequentially passes through the reduction gear 2 and the generator 3 to the driving motor 4, the other part of power of the driving motor 4 transmits an energy source to the driving motor 4 through the battery pack 9, the driving motor 4 transmits the obtained energy to the main reduction gear 11 and the differential mechanism 6, and the differential mechanism 6 drives the front wheel 8 to rotate through the driving shaft 7.
The engine modes are specifically: the engine 1 works, the battery pack 9 does not work, power is transmitted to the driving motor 4 from the engine 1 sequentially through the reduction gear 2 and the generator 3, and the driving motor 4 transmits the power to the driving shaft 7 sequentially through the main reduction gear 11 and the differential mechanism 6 to drive the front wheel 8 to rotate.
The utility model discloses not setting up the gearbox, add generator 3 and driving motor 4, engine 1 realizes non-coaxial-type with generator 3 and is connected, and engine 1 makes generator 3 provide better power for driving motor 4 under equal rotational speed, guarantees that generator 3 realizes the electricity generation under the optimum most stable state in the high-efficient electricity generation interval, cancels the gearbox that original structure is complicated simultaneously, gains beneficial effect on compact structure and assembly equally.
The engine 1 and the generator 3 are arranged non-coaxially, in order to enable the engine 1 and the generator 3 to work in a high-efficiency interval, a pair of reduction gears 2 are added between the engine 1 and the generator 3, and the reduction ratio of the reduction gears 2 is set according to the high-efficiency interval rotating speed of different engines and generators.
The design enables the engine 1, the generator 3 and the driving motor 4 to be highly integrated in structure, the structural compactness is improved, energy is transmitted to the driving motor 4 in a pure electric mode, a mixed mode and an engine mode, then the front wheel 8 is driven to rotate, the energy is released and stored at the driving motor 4, redundant energy is used for charging the battery pack 9, and the beneficial effects in the aspects of economy and dynamic property are achieved; importantly, when the automobile is in a braking state, the driving motor 4 converts braking mechanical energy into electric energy, the electric energy is charged to the battery pack 9, energy recovery is achieved, the utilization rate of energy is greatly improved in three modes, and energy consumption under any condition is avoided.
The connection between the generator 3 and the driving motor 4, the connection between the battery pack 9 and the generator 3, and the connection between the battery pack 9 and the driving motor 4 are realized through electric control modules.
The transmission housing 5 is integrally arranged in an automobile cabin after being connected with the engine 1, the reduction gear 2, the generator 3, the driving motor 4 and the differential mechanism 6 are integrated in the transmission housing 5, and the transmission housing 5 is integrally arranged in the automobile cabin after being connected with the engine 1, so that the integration level is high, the structure is compact, and the arrangement and industrialization are easy to realize.
The generator 3, the driving motor 4 and the differential mechanism 6 are arranged in the upper and lower space, the integration level and the space utilization rate are high, and the arrangement is easy.
It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. A plug-in hybrid powertrain system, comprising: comprises that
An engine (1);
a battery pack (9);
an oil tank (10), wherein the oil tank (10) is communicated with the engine (1);
a drive disk assembly, drive disk assembly includes transmission casing (5) and places generator (3), driving motor (4), differential mechanism (6) in transmission casing (5) in, generator (3) and engine (1) realize through a pair of reduction gear (2) that the non-coaxial formula is connected, generator (3) are connected with driving motor (4), driving motor (4) are connected with differential mechanism (6) through a pair of main reduction gear (11), differential mechanism (6) are connected with car front wheel (8) through a drive shaft (7), battery package (9) are connected with generator (3), driving motor (4) respectively.
2. The plug-in hybrid system of claim 1, wherein: the output end a (12) of the crankshaft of the engine (1) is connected with one reduction gear (2), the input end a (13) of the generator (3) is connected with the other reduction gear (2), the pair of reduction gears (2) are meshed with each other to realize transmission, and when the engine (1) operates, power sequentially passes through the output end a (12) of the crankshaft and the input end a (13) of the generator (3) to the generator (3).
3. The plug-in hybrid system of claim 1, wherein: output b (14) and a main reduction gear (11) of driving motor (4) are connected, input b (15) and another main reduction gear (11) of differential mechanism (6) are connected, a pair of main reduction gear (11) intermeshing realizes the transmission, differential mechanism (6) are connected with car front wheel (8) through drive shaft (7), the power that driving motor (4) obtained loops through output b (14), main reduction gear (11), input b (15) to drive shaft (7) of differential mechanism (6) of driving motor (4), and final drive front wheel (8) rotate.
4. The plug-in hybrid system of claim 1, wherein: the connection between the generator (3) and the driving motor (4), between the battery pack (9) and the generator (3) and between the battery pack (9) and the driving motor (4) is realized through an electric control module.
5. The plug-in hybrid system of claim 1, wherein: the transmission shell (5) is integrally arranged in an automobile cabin after being connected with the engine (1).
6. The plug-in hybrid system of claim 1, wherein: the generator (3), the driving motor (4) and the differential (6) are arranged in the upper and lower space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020608349.4U CN213594082U (en) | 2020-04-22 | 2020-04-22 | Plug-in hybrid power system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020608349.4U CN213594082U (en) | 2020-04-22 | 2020-04-22 | Plug-in hybrid power system |
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| Publication Number | Publication Date |
|---|---|
| CN213594082U true CN213594082U (en) | 2021-07-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020608349.4U Active CN213594082U (en) | 2020-04-22 | 2020-04-22 | Plug-in hybrid power system |
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| Country | Link |
|---|---|
| CN (1) | CN213594082U (en) |
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2020
- 2020-04-22 CN CN202020608349.4U patent/CN213594082U/en active Active
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