CN117698403A - Multi-mode series-parallel hybrid electric vehicle driving system - Google Patents
Multi-mode series-parallel hybrid electric vehicle driving system Download PDFInfo
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- CN117698403A CN117698403A CN202410069980.4A CN202410069980A CN117698403A CN 117698403 A CN117698403 A CN 117698403A CN 202410069980 A CN202410069980 A CN 202410069980A CN 117698403 A CN117698403 A CN 117698403A
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- 230000005540 biological transmission Effects 0.000 claims abstract description 9
- 230000009467 reduction Effects 0.000 claims description 12
- 230000005611 electricity Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 3
- 230000001172 regenerating effect Effects 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 230000007246 mechanism Effects 0.000 claims description 2
- 238000011084 recovery Methods 0.000 claims description 2
- 238000004064 recycling Methods 0.000 claims description 2
- 239000000446 fuel Substances 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 13
- 230000009977 dual effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
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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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Abstract
The invention belongs to the technical field of power transmission and control, and particularly relates to a multi-mode series-parallel hybrid electric vehicle driving system, which comprises a battery, a first motor, a second motor, an engine, a gear shifting device, a second clutch, a first clutch, a fourth gear, a second gear, a third gear, a gear shifting device, a seventh gear, a sixth gear and a synchronizer, wherein the battery is electrically connected with the first motor and the second motor; the second motor is connected with the main reducing gear through the first gear and the main reducing gear. The invention adds the clutch and the pair of gears on the engine end on the basis of the serial-parallel hybrid power configuration, thereby effectively improving the fuel economy and the power performance of the serial-parallel hybrid power automobile.
Description
Technical Field
The invention belongs to the technical field of power transmission and control systems, and particularly relates to a multi-mode series-parallel hybrid electric vehicle driving system.
Background
In recent years, the hybrid electric vehicle has the advantages of both a pure electric vehicle and a traditional fuel oil vehicle, and has good industrialization prospect. The series-parallel hybrid electric vehicle combines the advantages of a series configuration and a parallel configuration, and has wide applicability and good commercial value. However, in the existing conventional series-parallel hybrid electric vehicle, the engine output of the vehicle has only one fixed deceleration gear, and it is difficult to adjust the engine operating point to the effective area within the full power demand range.
Disclosure of Invention
The invention aims to provide a multi-mode series-parallel hybrid electric vehicle driving system, which is characterized in that a clutch and a pair of gears are added at the end of an engine, the multi-mode switching is realized by controlling the opening and closing of the clutch and the switching of a synchronizer, the efficiency of the series-parallel hybrid electric vehicle driving system is improved, and the fuel economy of the whole vehicle is effectively improved.
In order to achieve the above purpose, the present invention provides the following technical solutions: the multi-mode series-parallel hybrid electric vehicle driving system comprises a first motor and a second motor which are electrically connected through a battery, and comprises an engine and a gear shifting device, wherein an inverter is arranged between the battery and the first motor and between the battery and the second motor, the tail end of the gear shifting device is sequentially connected with a main reduction pinion, a main reduction gear, a differential mechanism and wheels, the multi-mode series-parallel hybrid electric vehicle driving system further comprises a second clutch and a first clutch which are sequentially arranged at the tail end of the engine, a fifth gear and a fourth gear which are connected with the first motor are arranged between the second clutch and the first clutch, the engine is further connected with a second gear and a third gear through the first clutch, the second gear is connected with the gear shifting device through the third gear, the second gear is connected with a seventh gear, the third clutch is connected with a sixth gear, and the synchronizer selectively controls power to be output from the sixth gear or the seventh gear; the second motor is connected with the main reducing gear and the main reducing gear through the first gear.
Optionally, the shift control device is a synchronizer.
Optionally, the method for implementing power coupling output through the gear shifting device includes the following modes: the system comprises a single-motor pure electric driving working mode, a double-motor parallel driving working mode, a series driving working mode, an engine parallel driving working mode and a braking energy recycling working mode.
Alternatively, the single motor pure electric driving working mode is as follows: the first clutch is disconnected, the second clutch is disconnected, and only the second motor is connected with the main reducing gear and the main reducing gear through the first gear to drive wheels, so that a single-motor driving working mode is realized.
Optionally, the dual-motor parallel driving working mode is as follows: the first clutch is closed, the second clutch is opened, and the first motor is connected with the second motor in parallel to drive wheels by selecting different gears.
Optionally, the dual motor parallel drive mode is further divided into two sub-modes:
the first type is that the synchronizer is meshed with the seventh gear, the first motor sequentially passes through the fifth gear, the fourth gear, the second gear and the seventh gear, and the first motor is connected with the power output by the second motor at the position of the main reducing gear in parallel to drive the vehicle;
the second type is that the synchronizer is meshed with the sixth gear, the first motor sequentially passes through the fifth gear, the fourth gear, the third gear and the sixth gear, and the first motor is connected with the power output by the second motor at the position of the main reducing gear in parallel to drive the vehicle.
Optionally, the series driving operation mode is: the first clutch is opened, the second clutch is closed, the engine is connected with the first motor through the fourth gear and the fifth gear to generate electricity, part of generated electric energy is transmitted to the second motor to drive wheels, and redundant electric energy is transmitted to the battery.
Optionally, the engine parallel driving operation mode is: the first clutch is closed, the second clutch is closed, and the engine and the first motor drive the wheels in parallel with the power output by the second motor at the main reducing gear through selecting different gears.
Optionally, the engine parallel drive operation mode is further divided into two sub-modes:
the first, the synchronizer is meshed with seventh gear, the power that engine and first motor output connects the seventh gear through two clutches and second gear sequentially, reduce the gear department and power parallel drive vehicle that the second motor outputs in main;
and the second type is that the synchronizer is meshed with the sixth gear, the power output by the engine and the first motor is sequentially connected with the third gear and the sixth gear through two clutches, and the power output by the second motor is connected with the main reducing gear in parallel to drive the vehicle.
Optionally, the braking energy recovery operation mode is: the regenerated braking energy is connected with the second motor through the main reducing gear, the main reducing gear and the first gear to generate power, so that power is recovered. And the first motor can also recover energy in a double-motor parallel operation or engine parallel driving operation mode, and the regenerated braking energy is connected with the first motor through a main reducing gear, a gear shifting system, a first clutch, a fourth gear and a fifth gear to generate electricity, so that the kinetic energy of the vehicle is converted into electric energy and stored in a battery.
The invention has the beneficial effects that: according to the multi-mode series-parallel hybrid electric vehicle driving system, the clutch and the pair of gears are added at the engine end on the basis of a series-parallel hybrid power configuration, so that the gear of a working mode is increased, the influence of the reverse dragging torque of a regenerative braking engine is reduced, and the fuel economy and the power performance of the series-parallel hybrid electric vehicle are effectively improved.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objects and other advantages of the invention may be realized and obtained by means of the instrumentalities and combinations particularly pointed out in the specification.
Drawings
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in the following preferred detail with reference to the accompanying drawings, in which:
FIG. 1 is a schematic diagram of a multi-mode series-parallel hybrid vehicle drive system of the present invention;
FIG. 2 is a schematic diagram of the control relationship between each power source and each shift element in the multi-mode series-parallel hybrid vehicle drive system of the present invention;
FIG. 3 is a schematic power transfer diagram of a single motor electric-only mode of the multi-mode series-parallel hybrid vehicle drive system of the present invention;
FIG. 4 is a schematic diagram of a series mode power transfer for a multi-mode series-parallel hybrid vehicle drive system of the present invention;
FIG. 5 is a schematic power transfer diagram of a two-motor 1-speed mode of the multi-mode series-parallel hybrid vehicle drive system of the present invention;
FIG. 6 is a schematic diagram of a dual motor 2-speed mode power transfer for a multi-mode series-parallel hybrid vehicle drive system of the present invention;
FIG. 7 is a schematic diagram of a parallel 1-speed mode power transfer for a multi-mode series-parallel hybrid vehicle drive system of the present invention;
fig. 8 is a schematic diagram of power transmission in parallel 2-speed mode for a multi-mode series-parallel hybrid vehicle drive system of the present invention.
Reference numerals: 1-battery, 2-inverter, 3-second motor, 4-synchronizer, 5-first gear, 6-main reducing gear, 7-wheel, 8-differential, 9-second gear, 10-third gear, 11-first clutch, 12-fourth gear, 13-second clutch, 14-engine, 15-first motor, 16-fifth gear, 17-sixth gear, 18-seventh gear, 19-main reducing gear.
Detailed Description
Other advantages and effects of the present invention will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present invention with reference to specific examples. The invention may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present invention. It should be noted that the illustrations provided in the following embodiments merely illustrate the basic idea of the present invention by way of illustration, and the following embodiments and features in the embodiments may be combined with each other without conflict.
Wherein the drawings are for illustrative purposes only and are shown in schematic, non-physical, and not intended to limit the invention; for the purpose of better illustrating embodiments of the invention, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the size of the actual product; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numbers in the drawings of embodiments of the invention correspond to the same or similar components; in the description of the present invention, it should be understood that, if there are terms such as "upper", "lower", "left", "right", "front", "rear", etc., that indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but not for indicating or suggesting that the referred device or element must have a specific azimuth, be constructed and operated in a specific azimuth, so that the terms describing the positional relationship in the drawings are merely for exemplary illustration and should not be construed as limiting the present invention, and that the specific meaning of the above terms may be understood by those of ordinary skill in the art according to the specific circumstances.
Referring to fig. 1 to 8, a multi-mode serial-parallel hybrid electric vehicle driving system includes an engine 14, a battery 1, an inverter 2, a first motor 15, a second motor 3, a first clutch 11, a second clutch 13, and a synchronizer 4; the engine 14 and the second clutch 13 are connected with a first motor 15 through a fourth gear 12 and a fifth gear 16; the engine 14 is also connected with the second gear 9 and the third gear 10 through the first clutch 11, the second gear 9 is connected with the third gear 10 to be a gear shifting device, the second gear 9 is connected with the seventh gear 18, the third clutch is connected with the sixth gear 17, and the synchronizer 4 selectively controls power output from the sixth gear 17 or the seventh gear 18; the second motor 3 is connected with a main reducing gear 19, a main reducing gear 6 and a differential 8 through a first gear 5; the driven part of the synchronizer 4 is connected with a main reducing gear 19, a main reducing gear 6, a differential 8 and wheels 7 in sequence.
The invention adds a second clutch 13, a second gear 9 and a seventh gear 18 on the end of an engine 14 based on a series-parallel hybrid power configuration, and in the actual running process, each power source (a first motor 15 and a second motor 3) is combined with each gear shifting original (a first clutch 11, a second clutch 13 and a synchronizer 4) to generate six different working modes, wherein the control relationship between each working mode and each gear shifting original is shown in figure 2, wherein O represents an open state, and T represents a closed state.
The power transmission schematic diagram of the single-motor pure electric driving working mode is shown in fig. 3: the first clutch 11 and the second clutch 13 are closed, the first motor 15 and the engine 14 are not operated, the second motor 3 is connected with the main reducing gear 19 and the main reducing gear 6 through the first gear 5, and the wheels 7 are driven.
Series drive mode of operation the power transfer schematic is shown in fig. 4: the first clutch 11 is opened, the second clutch 13 is closed, the engine 14 drives the first motor 15 to generate electricity through the second clutch 13, the fourth gear 12 and the fifth gear 16, the generated electric energy is transmitted to the second motor 3, and the redundant electric energy charges the battery 1.
The power transmission schematic diagram of the double-motor 1-gear driving working mode is shown in fig. 5: the first clutch 11 is closed, the second clutch 13 is opened, the synchronizer 4 is in the right station and is meshed with the seventh gear 18, the first motor 15 is transmitted to the main reduction pinion 19 through the fifth gear 16, the fourth gear 12, the first clutch 11, the second gear 9 and the seventh gear 18, and the second motor 3 is driven together by the power transmitted from the main reduction pinion 19 through the first gear 5.
The power transmission schematic diagram of the double-motor 2-gear driving working mode is shown in fig. 6: the first clutch 11 is closed, the second clutch 13 is opened, the synchronizer 4 is at the left station and is meshed with the sixth gear 17, the first motor 15 is transmitted to the main reduction pinion 19 through the fifth gear 16, the fourth gear 12, the first clutch 11, the third gear 10 and the sixth gear 17, and the second motor 3 is driven together by the power transmitted from the main reduction pinion 19 through the first gear 5.
The power transmission schematic diagram of the engine parallel 1-gear driving operation mode is shown in fig. 7: the first clutch 11 is closed, the second clutch 13 is closed, the synchronizer 4 is in a right station and is meshed with the seventh gear 18, power output by the engine 14 and the first motor 15 is transmitted to the main reducing gear 19 through the first clutch 11, the second gear 9 and the seventh gear 18, and the power transmitted from the second motor 3 to the main reducing pinion gear 19 through the first gear 5 is driven together.
The power transmission schematic diagram of the engine parallel 2-gear driving operation mode is shown in fig. 8: the first clutch 11 is closed, the second clutch 13 is closed, the synchronizer 4 is in a left station and is meshed with the sixth gear 17, power output by the engine 14 and the first motor 15 is transmitted to the main reduction pinion 19 through the first clutch 11, the third gear 10 and the sixth gear 17, and the second motor 3 is driven together with power transmitted from the main reduction pinion 19 through the first gear 5.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the present invention, which is intended to be covered by the claims of the present invention.
Claims (10)
1. The utility model provides a multimode series-parallel hybrid car actuating system, includes battery (1) through electrically connected's first motor (15) and second motor (3), including engine, gearshift, is provided with dc-to-ac converter (2) between battery and first motor, second motor, and the gearshift end has connected gradually main reduction gear (19), main reduction gear (6), differential mechanism (8) and wheel (7), its characterized in that: the power transmission device is characterized by further comprising a second clutch (13) and a first clutch (11) which are sequentially arranged at the tail end of the engine (14), a fourth gear (12) connected with a first motor and a fifth gear (16) is arranged between the second clutch and the first clutch, the generator is also connected with a second gear (9) and a third gear (10) through the first clutch, the second gear is connected with a gear shifting device through the third gear, the second gear is connected with a seventh gear (18), the third clutch is connected with a sixth gear (17), and the synchronizer (4) selectively controls power to be output from the sixth gear or the seventh gear; the second motor is connected with the main reducing gear and the main reducing gear through the first gear (5).
2. The multi-mode series-parallel hybrid vehicle drive system of claim 1, wherein: the gear shifting device is a synchronizer.
3. The multi-mode series-parallel hybrid vehicle drive system according to claim 1, wherein the method of power coupling output through the shift device comprises the following modes: the system comprises a single-motor pure electric driving working mode, a double-motor parallel driving working mode, a series driving working mode, an engine parallel driving working mode and a braking energy recycling working mode.
4. The multi-mode series-parallel hybrid vehicle drive system of claim 1, wherein the single motor electric-only drive mode is: the first clutch is disconnected, the second clutch is disconnected, and only the second motor is connected with the main reducing gear, the main reducing gear and the differential through the first gear to drive wheels.
5. The multi-mode series-parallel hybrid vehicle drive system of claim 1, wherein the two-motor parallel drive mode of operation is: the first clutch is closed, the second clutch is opened, and the first motor is connected with the second motor in parallel to drive wheels by selecting different gears.
6. The multi-mode series-parallel hybrid vehicle drive system of claim 5, wherein the two-motor parallel drive operating mode is further divided into two sub-modes:
the first type is that the synchronizer is meshed with the seventh gear, the first motor sequentially passes through the fifth gear, the fourth gear, the second gear and the seventh gear, and the first motor is connected with the power output by the second motor at the position of the main reducing gear in parallel to drive the vehicle;
the second type is that the synchronizer is meshed with the sixth gear, the first motor sequentially passes through the fifth gear, the fourth gear, the third gear and the sixth gear, and the first motor is connected with the power output by the second motor at the position of the main reducing gear in parallel to drive the vehicle.
7. The multi-mode series-parallel hybrid vehicle drive system of claim 1, wherein the series drive operating mode is: the first clutch is opened, the second clutch is closed, the engine is connected with the first motor through the fourth gear and the fifth gear to generate electricity, part of generated electric energy is transmitted to the second motor to drive wheels, and redundant electric energy is transmitted to the battery.
8. The multi-mode series-parallel hybrid vehicle drive system of claim 1, wherein the engine parallel drive operating mode is: the first clutch is closed, the second clutch is closed, and the engine and the first motor are connected with the second motor in parallel to drive wheels by selecting different gears.
9. The multi-mode series-parallel hybrid vehicle drive system of claim 8, wherein the engine parallel drive operating mode is further divided into two sub-modes:
the first, the synchronizer is meshed with the seventh gear, the power output by the engine and the first motor sequentially passes through two clutches, the second gear and the seventh gear, and the power output by the second motor is connected in parallel at the position of the main speed reduction pinion to drive the vehicle;
and the second type is that the synchronizer is meshed with the sixth gear, and the power output by the engine and the first motor sequentially passes through the two clutches, the third gear and the sixth gear, and the power output by the second motor is connected with the main speed reduction pinion to drive the vehicle in parallel.
10. The multi-mode series-parallel hybrid vehicle drive system of claim 1, wherein the braking energy recovery mode of operation is: the regenerative braking energy is connected with the second motor through the main reducing gear, the main reducing gear and the first gear to generate electricity, braking energy is recovered, the first motor can also recover energy in a double-motor parallel operation or engine parallel driving operation mode, and the regenerative braking energy is connected with the first motor through the main reducing gear, the gear shifting system, the first clutch, the fourth gear and the fifth gear to generate electricity, so that kinetic energy of a vehicle is converted into electric energy to be stored in a battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410069980.4A CN117698403A (en) | 2024-01-16 | 2024-01-16 | Multi-mode series-parallel hybrid electric vehicle driving system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410069980.4A CN117698403A (en) | 2024-01-16 | 2024-01-16 | Multi-mode series-parallel hybrid electric vehicle driving system |
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| CN117698403A true CN117698403A (en) | 2024-03-15 |
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| CN202410069980.4A Pending CN117698403A (en) | 2024-01-16 | 2024-01-16 | Multi-mode series-parallel hybrid electric vehicle driving system |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10327504A (en) * | 1997-05-23 | 1998-12-08 | Mitsubishi Motors Corp | Hybrid electric car |
| CN102050001A (en) * | 2010-12-30 | 2011-05-11 | 上海交通大学 | Four-die stepless speed change series-parallel hybrid power driving system |
| WO2018108053A1 (en) * | 2016-12-12 | 2018-06-21 | 郑州宇通客车股份有限公司 | Vehicle, series-parallel hybrid power system, and method for controlling hybrid power system |
| CN111409472A (en) * | 2020-03-27 | 2020-07-14 | 重庆大学 | Multi-mode coupling driving system of double-motor electric automobile |
| CN111688470A (en) * | 2020-05-11 | 2020-09-22 | 同济大学 | Series-parallel configuration plug-in hybrid power system and control method thereof |
-
2024
- 2024-01-16 CN CN202410069980.4A patent/CN117698403A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10327504A (en) * | 1997-05-23 | 1998-12-08 | Mitsubishi Motors Corp | Hybrid electric car |
| CN102050001A (en) * | 2010-12-30 | 2011-05-11 | 上海交通大学 | Four-die stepless speed change series-parallel hybrid power driving system |
| WO2018108053A1 (en) * | 2016-12-12 | 2018-06-21 | 郑州宇通客车股份有限公司 | Vehicle, series-parallel hybrid power system, and method for controlling hybrid power system |
| CN111409472A (en) * | 2020-03-27 | 2020-07-14 | 重庆大学 | Multi-mode coupling driving system of double-motor electric automobile |
| CN111688470A (en) * | 2020-05-11 | 2020-09-22 | 同济大学 | Series-parallel configuration plug-in hybrid power system and control method thereof |
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