CN210132998U - Double-planet-row hybrid power system and hybrid power vehicle - Google Patents
Double-planet-row hybrid power system and hybrid power vehicle Download PDFInfo
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- CN210132998U CN210132998U CN201920873209.7U CN201920873209U CN210132998U CN 210132998 U CN210132998 U CN 210132998U CN 201920873209 U CN201920873209 U CN 201920873209U CN 210132998 U CN210132998 U CN 210132998U
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Abstract
The utility model discloses a hybrid power system and hybrid vehicle are arranged to double row planet, its double row planet hybrid power system includes: the system comprises an engine, a first motor, a second motor, a front planet row, a rear planet row, an input shaft and an output shaft, and further comprises an oil pump clutch, an oil pump and a lubricating oil pool, wherein a front row gear ring is connected with the oil pump through the oil pump clutch, the oil pump is communicated with the lubricating oil pool, an oil outlet of the oil pump is connected with an injection oil way, an oil outlet of the injection oil way is arranged on the front planet row and the rear planet row, an oil outlet of the oil pump is communicated with a pressure accumulator through an electromagnetic control valve, and an oil outlet of the pressure accumulator is communicated with the injection oil way through a one-way pressure-stabilizing. The system can realize fixed-point active lubrication of the planet row system by arranging the pressure energy storage device and the active lubrication system, improve the working efficiency of the system, prolong the service life of key parts and improve the economical efficiency of the whole vehicle.
Description
Technical Field
The utility model relates to a hybrid power system technical field especially relates to a double row planet hybrid power system and a hybrid vehicle.
Background
The patent with the publication number of CN102320238A proposes a hybrid power device with an engine locking mechanism and a control method thereof, and the basic idea is to lock an engine by using the locking mechanism to realize pure electric operation of a hybrid electric vehicle, and to drive two motors in a motor mode simultaneously, so as to improve the dynamic performance of the vehicle.
The patent with the publication number of CN104175860B discloses a planetary hybrid power system, which comprises an engine, a generator, a driving motor, a front planet row, a rear planet row and a system output shaft, wherein a front sun gear is connected with the generator and locked or released by a front locking clutch, and a front planet carrier is in transmission connection with the engine; the rear sun gear is connected with the driving motor, a rear planet carrier of the rear planet row is connected with a system output shaft, the front gear ring is connected with the sun gear of the rear planet row, and the rear gear ring is connected with a rear locking clutch used for locking or releasing the rear gear ring; mode switching at high and low speeds can be achieved and power cycling problems are avoided.
The patent with the publication number of CN102320238A is only suitable for medium and low speed operation, the requirement of high speed operation on the rotating speed of a motor is high, power circulation is easy to enter, and the oil saving rate of a system is reduced; meanwhile, most power of the engine can be shunted to the generator when the engine runs at a medium-low speed, the requirements of higher power and efficiency can be provided for the generator, the cost of a motor system is improved, meanwhile, the active lubrication design of a planet row system is not embodied in a patent, and the efficient and long-life work of a planet row gear and a bearing cannot be realized.
Patent that publication number is CN104175860B realizes directly keeping off the transmission through a locking clutch with back ring gear and back planet carrier locking together, is applicable to high-speed operating mode, and is very high to generator speed governing demand during low-speed, and the phase change has improved the motor cost, simultaneously, can't realize two motor drive modes, and the energy recuperation mode is single, and efficiency is lower. Meanwhile, the active lubrication design of a planet row system is not embodied in the patent, and the efficient and long-life work of a planet row gear and a bearing cannot be realized.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a double row planet row hybrid power system, this system can realize that planet row system fixed point initiative is lubricated, improves system work efficiency and extension key spare part life, improves whole car economic nature. Another object of the present invention is to provide a hybrid vehicle.
In order to achieve the above purpose, the utility model provides a following technical scheme:
a dual-planetary-row hybrid system, comprising: the system comprises an engine, a first motor, a second motor, a front planet row, a rear planet row, an input shaft and an output shaft, wherein the front planet row comprises a front sun gear, a front planet carrier and a front gear ring, the rear planet row comprises a rear sun gear, a rear planet carrier and a rear gear ring, the output end of the engine is connected with the input shaft, the input shaft is connected with the front planet carrier, the output end of the first motor is connected with the front sun gear, the front gear ring is connected with the rear planet carrier, the rear planet carrier is connected with the output shaft, the output end of the second motor is connected with the rear sun gear, the system further comprises an oil pump clutch, an oil pump and a lubricating oil pool, the front gear ring is connected with the oil pump through the oil pump clutch, the oil pump is communicated with the lubricating oil pool, the oil outlet of the oil pump is connected with an injection oil way, and the oil outlet of the injection oil way is arranged on the front planet row and on the rear planet row And the oil outlet of the oil pump is communicated with a pressure accumulator through an electromagnetic control valve, and the oil outlet of the pressure accumulator is communicated with the injection oil way through a one-way pressure-stabilizing throttle valve.
The utility model provides a double row planet row hybrid power system's theory of operation as follows:
the power of an engine which is shunted to the front row gear ring is distributed to an output shaft and an oil pump by engaging an oil pump clutch, and the oil pump pressurizes and sprays lubricating oil in a lubricating oil pool to the rotating and meshing positions of high-speed moving parts such as planet wheels of front and rear planet rows, so that the active cooling and lubrication of parts of double planet rows are realized, the abrasion of the parts is reduced, the service life of the parts is prolonged, and the transmission efficiency of a planet row system can be improved; when the vehicle starts at a low speed and stops at a high speed, in order to realize the purpose of active cooling and lubrication, a set of pressure energy storage device is designed in the scheme, when the vehicle starts at a low speed and stops at a high speed, lubricating oil is stored in the pressure energy accumulator through controlling the electromagnetic control valve in a mode of improving the working efficiency of the engine and recovering energy, when the pressure energy accumulator reaches a set pressure, the electromagnetic control valve is controlled to cut off the lubricating oil in the pressure energy accumulator to keep an energy storage state, and when the vehicle starts at a low speed and stops at a high speed, the oil pump clutch is disconnected, the lubricating oil is released by the pressure energy accumulator, and the active lubrication of a planet row part at a low speed stage and a high speed rear stop stage is realized by adjusting the one-way pressure stabilizing throttle.
The utility model discloses an increase pressure energy storage equipment in double row planet system, can realize the physics energy storage effect, avoid energy multiple conversion, realize double row planet system fixed point initiative lubrication, avoid the design of two oil pumps, improve system work efficiency and extension key spare part life, improve whole car economic nature.
Preferably, the oil pump clutch is an electromagnetic clutch.
Preferably, the pressure accumulator is in communication with the lubricant sump via a relief valve.
Preferably, the first Motor is an ISG (Integrated Starter and Generator) Motor, and the second Motor is a TM (transmission Motor) Motor.
Preferably, the system further comprises a mode clutch controlling the rear ring gear to alternatively disengage or engage between the front ring gear and the frame.
Preferably, the system further comprises a lock-up clutch, and the output end of the engine is connected with the frame through the lock-up clutch.
Preferably, the output of the engine is connected to the input shaft through a hydrodynamic torsional vibration damper.
The utility model also provides a hybrid vehicle of including as above double planetary row hybrid power system. The derivation process of the beneficial effects of the hybrid vehicle is substantially similar to the derivation process of the beneficial effects brought by the double-planetary-row hybrid system, and therefore, the description is omitted here.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a structural layout diagram of a double-row planetary hybrid power system according to an embodiment of the present invention;
fig. 2 is a flow chart of the active lubrication operation of the system according to the embodiment of the present invention.
In fig. 1:
the hydraulic control system comprises an engine 1, a hydraulic torsion damper 2, a locking clutch 3, an ISG motor 4, an input shaft 5, a one-way pressure-stabilizing throttle valve 6, a pressure accumulator 7, an electromagnetic control valve 8, an overflow valve 9, an oil pump 10, a lubricating oil pool 11, an electromagnetic clutch 12, a front-row sun gear 13, a front-row planet carrier 14, a front-row gear ring 15, a mode clutch 16, a rear-row gear ring 17, a rear-row planet carrier 18, a rear-row sun gear 19, a TM motor 20, an output shaft 21 and a wheel 22.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a structural layout diagram of a double-planetary-row hybrid power system according to an embodiment of the present invention.
In order to realize the initiative lubrication of double-row planetary power system, the utility model provides a double-row planetary power system with pressure energy storage device, this system includes: the system comprises an engine 1, a first motor, a second motor, a front planet row, a rear planet row, an input shaft 5 and an output shaft 21, wherein the front planet row comprises a front sun gear 13, a front planet carrier 14 and a front gear ring 15, the rear planet row comprises a rear sun gear 19, a rear planet carrier 18 and a rear gear ring 17, the output end of the engine 1 is connected with the input shaft 5, the input shaft 5 is connected with the front planet carrier 14, the output end of the first motor is connected with the front sun gear 13, the front gear ring 15 is connected with the rear planet carrier 18, the rear planet carrier 18 is connected with the output shaft 21, the output end of the second motor is connected with the rear sun gear 19, the output shaft 21 drives a wheel 22 to rotate through a main speed reducer, the system further comprises an oil pump clutch, an oil pump 10 and a lubricating oil pool 11, the front planet carrier 15 is connected with the oil pump 10 through the oil pump clutch, the oil pump 10 is communicated with the lubricating oil pool 11, an oil outlet of the lubricating oil pump 10 is connected with a jet oil path (indicated by a dotted line) and an oil outlet of the oil The oil outlet of the oil pump 10 is communicated with a pressure accumulator 7 through an electromagnetic control valve 8, and the oil outlet of the pressure accumulator 7 is communicated with an injection oil way through a one-way pressure-stabilizing throttle valve 6.
The utility model provides a double row planet row hybrid power system's theory of operation as follows:
the power of the engine 1 which is shunted to the front row gear ring 15 is distributed to the output shaft 21 and the oil pump 10 by engaging an oil pump clutch, the oil pump 10 pressurizes and sprays lubricating oil of a lubricating oil pool 11 to the rotating and meshing positions of high-speed moving parts such as planet wheels of front and rear planet rows, active cooling and lubrication of parts of double planet rows are realized, the abrasion of the parts is reduced, the service life of the parts is prolonged, and meanwhile, the transmission efficiency of a planet row system can be improved; when the vehicle starts at a low speed and stops at a high speed, in order to realize the purpose of active cooling and lubrication, a set of pressure energy storage device is designed in the scheme, when the vehicle starts at a low speed and stops at a high speed, lubricating oil is stored in the pressure energy accumulator 7 through the control electromagnetic control valve 8 in a mode of improving the working efficiency of the engine and recovering energy, when the pressure energy accumulator 7 reaches a set pressure, the control electromagnetic control valve 8 cuts off the lubricating oil in the pressure energy accumulator 7 to keep an energy storage state, and when the vehicle starts at a low speed and stops at a high speed, the oil pump clutch is disconnected, the lubricating oil is released by the pressure energy accumulator 7, and the active lubrication of a planet row part at a low speed stage and a stop stage at a high speed is realized by adjusting the one-way pressure stabilizing throttle valve 6.
The oil pump clutch may be an electromagnetic clutch or a mechanical clutch, and preferably, the oil pump clutch in this embodiment is an electromagnetic clutch 12, as shown in fig. 1. The oil pump 10 in this embodiment is preferably a mechanical oil pump, but an electronic oil pump may be used.
Preferably, the pressure accumulator 7 is communicated with the lubricating oil pool 11 through a relief valve 9, and when the pressure of the lubricating oil in the pressure accumulator 7 exceeds a set value, the redundant lubricating oil can flow back to the lubricating oil pool through the relief valve 9 to be recycled.
Preferably, the first motor is the ISG motor 4 and the second motor is the TM motor 20.
Preferably, the above-mentioned double planetary row hybrid system further comprises a mode clutch 16, and the mode clutch 16 controls the rear row ring gear 17 to alternatively separate from or engage with the front row ring gear 15 and the frame, i.e. the mode clutch 16 can control the rear row ring gear 17 to separate from or engage with the front row ring gear 15 and can also control the rear row ring gear 17 to separate from or engage with the frame.
When the vehicle needs to operate at a medium-low speed, the vehicle starting torque requirement is large, the mode clutch 16 can be separated, the rear-row gear ring 17 is fixed, the TM motor 20 power torque is increased, torque is reduced, and then output is carried out, and the vehicle starting dynamic performance is improved; when the vehicle runs at a high speed, the clutch 16 can be engaged to realize the linkage of the front row gear ring 15, the rear row gear ring 17 and the rear row planet carrier 18, and the transmission ratio of the rear row planet carrier is 1 at the moment, so that the high-speed running working condition can be met, and the problem of power circulation is avoided.
Preferably, the double-row planetary hybrid power system further comprises a locking clutch 3, and the output end of the engine 1 is connected with the frame through the locking clutch 3. By engaging the locking clutch 3, the locking function of the engine 1 can be realized, whether the vehicle is driven by double motors or not can be determined according to the requirements of a driver during pure electric driving of the vehicle, and the problem of disturbance transmission in the moment of starting the vehicle is avoided.
Preferably, the output of the engine 1 is connected to the input shaft 5 through a hydrodynamic torsional vibration damper 2.
Referring to fig. 2, fig. 2 is a flow chart of the active lubrication operation of the system according to the embodiment of the present invention. The active lubrication working process of the system in the scheme is as follows:
by judging a vehicle speed signal, when the vehicle speed is greater than a set vehicle speed V1, because the rotating speed of the front row gear ring 15 is relatively high, at the moment, the electromagnetic clutch 12 is controlled to be connected, the oil pump 10 can be driven to carry out active lubrication work, meanwhile, when the pressure P of the pressure accumulator 7 is monitored to be less than P1 (a set pressure value) in the running process of the vehicle, a mode of improving the working efficiency of the engine or a mode of energy recovery can be selected according to the working condition at that time, and a part of lubricating oil is stored in the pressure accumulator 7 in a mode of pressurizing the pressure accumulator 7 by closing the electromagnetic control valve 8; when the pressure P of the pressure accumulator 7 is greater than P2, the electromagnetic control valve 8 is controlled to be disconnected, energy storage for the pressure accumulator 7 is stopped, and at the moment, the pressure accumulator 7 keeps an energy storage state; when the vehicle speed is less than or equal to V1 and the pressure P of the pressure accumulator 7 is more than or equal to P1, the electromagnetic clutch 12 is separated, and the pressure accumulator 7 sprays the lubricating oil to the parts of the planet row needing to be lubricated at a fixed point through the one-way pressure-stabilizing throttle valve 6, so that active lubrication is realized.
The utility model discloses an increase pressure energy storage equipment in double row planet system, can realize the physics energy storage effect, avoid energy multiple conversion, realize double row planet system fixed point initiative lubrication, avoid the design of two oil pumps, improve system work efficiency and extension key spare part life, improve whole car economic nature. In addition, the scheme also increases a set of mode clutch 16, so that the adaptability of the power system to match with the high-low speed running working condition of the vehicle can be improved, and the power cycle working condition is avoided.
The utility model also provides a hybrid vehicle of including as above double planetary row hybrid power system. The derivation process of the beneficial effects of the hybrid vehicle is substantially similar to the derivation process of the beneficial effects brought by the double-planetary-row hybrid system, and therefore, the description is omitted here.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. A dual-planetary-row hybrid system, comprising: engine (1), first motor, second motor, preceding planet row, back planet row, input shaft (5) and output shaft (21), wherein, preceding planet row includes front row sun gear (13), front row planet carrier (14) and front row ring gear (15), back planet row includes back row sun gear (19), back row planet carrier (18) and back row ring gear (17), the output of engine (1) with input shaft (5) link to each other, input shaft (5) with front row planet carrier (14) link to each other, the output of first motor with front row sun gear (13) link to each other, front row ring gear (15) with back row planet carrier (18) link to each other, back row planet carrier (18) with output shaft (21) link to each other, the output of second motor with back row sun gear (19) link to each other, its characterized in that, the oil pump is characterized by further comprising an oil pump clutch, an oil pump (10) and a lubricating oil pool (11), wherein a front row gear ring (15) is connected with the oil pump clutch and the oil pump (10) in a connected mode, the oil pump (10) is communicated with the lubricating oil pool (11), an oil outlet of the oil pump (10) is connected with an injection oil way, an oil outlet of the injection oil way is arranged on the front planet row and the rear planet row, an oil outlet of the oil pump (10) is communicated with a pressure accumulator (7) through an electromagnetic control valve (8), and an oil outlet of the pressure accumulator (7) is communicated with the injection oil way through a one-way pressure stabilizing throttle valve (6).
2. A double row planetary hybrid powertrain according to claim 1, characterized in that the oil pump clutch is an electromagnetic clutch (12).
3. A double row planetary hybrid system according to claim 1, characterized in that the pressure accumulator (7) communicates with the lubricating oil sump (11) through a relief valve (9).
4. A double row planetary hybrid powertrain according to claim 1, characterized in that the first electric machine is an ISG electric machine (4) and the second electric machine is a TM electric machine (20).
5. A double row planetary hybrid powertrain system according to claim 1, further comprising a mode clutch (16), the mode clutch (16) controlling the rear row ring gear (17) to alternatively disengage or engage between the front row ring gear (15) and a frame.
6. A double row planetary hybrid system according to claim 1, further comprising a lock-up clutch (3), wherein the output of the engine (1) is connected to the frame via the lock-up clutch (3).
7. A double row planetary hybrid system according to claim 1, characterized in that the output of the engine (1) is connected to the input shaft (5) through a hydraulic torsional vibration damper (2).
8. A hybrid vehicle characterized by comprising the double planetary row hybrid system according to any one of claims 1 to 7.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920873209.7U CN210132998U (en) | 2019-06-10 | 2019-06-10 | Double-planet-row hybrid power system and hybrid power vehicle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920873209.7U CN210132998U (en) | 2019-06-10 | 2019-06-10 | Double-planet-row hybrid power system and hybrid power vehicle |
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| CN210132998U true CN210132998U (en) | 2020-03-10 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114194021A (en) * | 2021-12-28 | 2022-03-18 | 中国矿业大学 | Oil-electric-hydraulic ternary hybrid system of heavy dump truck for strip mine and control method of oil-electric ternary hybrid system |
| CN114523839A (en) * | 2022-04-24 | 2022-05-24 | 潍柴动力股份有限公司 | Hybrid power system and control method thereof |
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2019
- 2019-06-10 CN CN201920873209.7U patent/CN210132998U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114194021A (en) * | 2021-12-28 | 2022-03-18 | 中国矿业大学 | Oil-electric-hydraulic ternary hybrid system of heavy dump truck for strip mine and control method of oil-electric ternary hybrid system |
| CN114523839A (en) * | 2022-04-24 | 2022-05-24 | 潍柴动力股份有限公司 | Hybrid power system and control method thereof |
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