WO2025232183A1 - 混动系统 - Google Patents

混动系统

Info

Publication number
WO2025232183A1
WO2025232183A1 PCT/CN2024/137879 CN2024137879W WO2025232183A1 WO 2025232183 A1 WO2025232183 A1 WO 2025232183A1 CN 2024137879 W CN2024137879 W CN 2024137879W WO 2025232183 A1 WO2025232183 A1 WO 2025232183A1
Authority
WO
WIPO (PCT)
Prior art keywords
drive
drive motor
hybrid system
planetary gear
output shaft
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/CN2024/137879
Other languages
English (en)
French (fr)
Inventor
章帅韬
陈亘
严军
王丹
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dongfeng Motor Group Co Ltd
Original Assignee
Dongfeng Motor Group Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dongfeng Motor Group Co Ltd filed Critical Dongfeng Motor Group Co Ltd
Publication of WO2025232183A1 publication Critical patent/WO2025232183A1/zh
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/36—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings
    • B60K6/365—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings with the gears having orbital motion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K17/00—Arrangement or mounting of transmissions in vehicles
    • B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location or kind of gearing
    • B60K17/16—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location or kind of gearing of differential gearing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/26—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the motors or the generators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/36—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/50—Architecture of the driveline characterised by arrangement or kind of transmission units
    • 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

Definitions

  • This application relates to the field of hybrid vehicle technology, and more particularly to a hybrid system.
  • the powertrain includes structures such as an engine, drive motor, transmission, and power battery. There are multiple power transmission routes, such as parallel mode, series mode, engine direct drive mode, and power generation mode.
  • the commonly referred to parallel transmission mode refers to simultaneously transmitting power from the crankshaft of the engine and the drive motor to the transmission gears, and then to the wheels.
  • the advantage of this mode is the strong power delivery.
  • the disadvantage is higher engine noise, which affects the driving experience.
  • the main objective of this application is to provide a hybrid system designed to address the problem of excessive noise from parallel operation of an engine and an electric motor.
  • this application provides a hybrid system, the hybrid system comprising:
  • the electric drive system includes a first drive motor and a second drive motor; and,
  • the transmission system includes a planetary gear train, which includes a sun gear mounted on the output shaft of the second drive motor, planet gears meshing with the sun gear, and an internal gear ring meshing with the planet gears.
  • the output shaft of the first drive motor and the internal gear ring are both used to drive the differential assembly, so that the first drive motor and the second drive motor jointly drive the differential assembly to rotate.
  • the output shafts of the first drive motor and the second drive motor are arranged in parallel.
  • a first driving portion is formed on the output shaft of the first drive motor, and a second driving portion is formed on the internal gear ring;
  • the hybrid system also includes an intermediate shaft, on which both the first drive unit and the second drive unit are driven to drive the intermediate shaft, and the intermediate shaft is used to drive the differential assembly.
  • a first driving portion is formed on the output shaft of the first drive motor, and a second driving portion is formed on the internal gear ring;
  • the hybrid system also includes two intermediate shafts, with the first drive unit and the second drive unit respectively driven to the two intermediate shafts, and both intermediate shafts being driven to the differential assembly.
  • the hybrid system further includes an engine, the crankshaft of which is drivenly connected to the output shaft of the second drive motor.
  • the planetary gear train further includes a planetary gear carrier, the planetary gears are rotatably mounted on the planetary gear carrier, and the crankshaft of the engine is drivenly connected to the planetary gear carrier.
  • the hybrid system further includes a hybrid transmission
  • a one-way clutch is provided between the planetary gear carrier and the hybrid transmission, the one-way clutch being used to enable the planetary gear carrier to drive the sun gear to rotate in one direction only.
  • the one-way clutch includes an outer clutch ring and an inner clutch ring.
  • the outer clutch ring is fixedly mounted to the hybrid transmission, and the inner clutch ring is fixedly mounted to the planetary gear carrier.
  • the inner clutch ring is rotatably mounted inside the outer clutch ring.
  • the hybrid system further includes a torsion damper disposed between the crankshaft of the engine and the planetary gear carrier.
  • the hybrid system further includes a power source electrically connected to the first drive motor and the second drive motor for supplying power to the first drive motor and the second drive motor.
  • This application provides a hybrid system comprising a first drive motor and a second drive motor.
  • the first drive motor operates, and its output shaft is driven by the differential assembly, transmitting power from the first drive motor to the differential assembly, thereby rotating the wheels.
  • both the first and second drive motors operate simultaneously.
  • the output shaft of the second drive motor drives the sun gear to rotate, and through the planetary gears meshing with the sun gear, the rotation is transmitted to the internal gear ring, causing it to rotate.
  • the internal gear ring is driven by the differential assembly, transmitting power from the second drive motor to the differential assembly. Simultaneously, power is provided to the differential assembly through both the first and second drive motors.
  • FIG. 1 is a connection block diagram of the hybrid system provided in the embodiment of this application.
  • Figure 2 is a connection block diagram of the first embodiment of the hybrid system in Figure 1;
  • Figure 3 is a connection block diagram of the second embodiment of the hybrid system in Figure 1;
  • Figure 4 is a three-dimensional structural diagram of the one-way clutch in Figure 1.
  • the directional indicators are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.
  • the powertrain includes structures such as an engine, drive motor, transmission, and power battery. There are multiple power transmission routes, such as parallel mode, series mode, engine direct drive mode, and power generation mode.
  • the commonly referred to parallel transmission mode refers to simultaneously transmitting power from the crankshaft of the engine and the drive motor to the transmission gears, and then to the wheels.
  • the advantage of this mode is the strong power delivery.
  • the disadvantage is higher engine noise, which affects the driving experience.
  • the electric drive system includes a first drive motor 11 and a second drive motor 12.
  • the transmission system includes a planetary gear train, which includes a sun gear 21 disposed on the output shaft of the second drive motor 12, planet gears 22 meshing with the sun gear 21, and an internal gear ring 23 meshing with the planet gears 22.
  • the output shaft of the first drive motor 11 and the internal gear ring 23 are both used to drive a differential assembly, so that the first drive motor 11 and the second drive motor 12 jointly drive the differential assembly to rotate.
  • the hybrid system 100 is provided with a first drive motor 11 and a second drive motor 12.
  • the first drive motor 11 operates, and its output shaft is driven to the differential assembly, transmitting power from the first drive motor 11 to the differential assembly, thereby driving the wheels to rotate.
  • the first drive motor 11 and the second drive motor 12 operate simultaneously.
  • the output shaft of the second drive motor 12 drives the sun gear 21 to rotate, and through the planetary gears 22 meshing with the sun gear 21, the rotation is transmitted to the internal gear ring 23, causing the internal gear ring 23 to rotate.
  • the internal gear ring 23 is driven to the differential assembly, transmitting power from the second drive motor 12 to the differential assembly.
  • power is provided to the differential assembly through the first drive motor 11 and the second drive motor 12. While ensuring strong power in the hybrid system, engine noise can be reduced, ensuring a better driving experience.
  • the output shafts of the first drive motor 11 and the second drive motor 12 are arranged in parallel. In this embodiment, by arranging the output shafts in parallel, the space occupied by the two motors can be reduced, allowing the two motors to be arranged side by side and integrated while occupying space in one direction.
  • a first drive portion is formed on the output shaft of the first drive motor 11, and a second drive portion is formed on the internal gear ring 23; the hybrid system 100 further includes an intermediate shaft 3, on which both the first drive portion and the second drive portion are drivenly connected, and the intermediate shaft 3 is used to drively connect with the differential assembly.
  • the first drive motor 11 and the second drive motor 12 output power outward through the same intermediate shaft 3, which can further save the space occupied by the hybrid system.
  • first drive unit and the second drive unit can be implemented in various ways.
  • a transmission belt can be provided and wound between the first drive unit, the second drive unit and the intermediate shaft 3, and the transmission belt can be used for transmission.
  • a first gear is provided on the first driving part
  • a second gear is provided on the second driving part
  • a mating gear is provided on the intermediate shaft 3 corresponding to the first gear and the second gear. The first gear and the second gear mesh on the mating gear at the same time, driving the intermediate shaft 3 to rotate.
  • the intermediate shaft 3 is used to drive the differential assembly, and there are multiple driving methods.
  • the intermediate shaft 3 and the differential assembly are driven by a set of meshing gears.
  • a first drive section is formed on the output shaft of the first drive motor 11, and a second drive section is formed on the internal gear ring 23; the hybrid system 100 further includes two intermediate shafts 3, and the first drive section and the second drive section are respectively driven connected to the two intermediate shafts 3, both of which are used to drive the differential assembly.
  • the first drive motor 11 and the internal gear ring 23 are simultaneously connected to the differential assembly through different intermediate shafts 3.
  • first drive unit and the second drive unit have various implementations. In this embodiment, they are driven by meshing gears that mesh with each other and engage with the two intermediate shafts 3 respectively. The specific transmission process and method will not be described in detail here.
  • the hybrid system 100 also includes an engine 4, the crankshaft of which is drivenly connected to the output shaft of the second drive motor 12.
  • the hybrid system 100 further includes an engine 4, which enables the hybrid system 100 to achieve hybrid power (gasoline-electric) operation to meet user needs.
  • the rotation of the engine 4 is transmitted to the output shaft of the second drive motor 12, allowing for reverse charging via the second drive motor 12.
  • the power from the engine 4 can also be output to the output shaft of the second drive motor 12, achieving parallel drive of the engine 3 and the first drive motor 11.
  • the differential assembly can be driven to rotate by the first drive motor 11 alone, or by the second drive motor 12 and the first drive motor 11 together, or by the engine 4 and the first drive motor 11 in parallel.
  • the planetary gear train further includes a planetary gear carrier 24, on which the planetary gears 22 are rotatably mounted, and the crankshaft of the engine 4 is drivenly connected to the planetary gear carrier 24.
  • the engine 4 and the second drive motor 12 are drivenly connected through the planetary gear carrier 24, facilitating the drive connection between the engine 4 and the second drive motor 12 without requiring additional connection structures.
  • the hybrid system 100 further includes a hybrid transmission 5; a one-way clutch 6 is provided between the planetary gear carrier 24 and the hybrid transmission 5, the one-way clutch 6 being used to allow the planetary gear carrier 24 to drive the sun gear 21 to rotate in one direction.
  • the one-way clutch 6 ensures that the planetary gear carrier 24 can only be driven to rotate by the engine 4, thereby driving the sun gear 21 to rotate, and that the rotation of the sun gear 21 cannot drive the planetary gear carrier 24 to rotate in the opposite direction.
  • the one-way clutch 6 has multiple implementations, and existing finished one-way clutches can be used.
  • the one-way clutch 6 includes an outer clutch ring 61 and an inner clutch ring 62.
  • the outer clutch ring 61 is fixedly mounted to the hybrid transmission 5, and the inner clutch ring 62 is fixedly mounted to the planetary gear carrier 24.
  • the inner clutch ring 62 is unidirectionally rotatably mounted inside the outer clutch ring 61.
  • the inner clutch ring 62 is unidirectionally rotatably mounted to the outer clutch ring 61.
  • the output shaft of the generator directly drives the planetary gear carrier 24 to rotate. Due to the unidirectional rotation, the planetary gear carrier 24 can drive the sun gear 21 to rotate, thereby preventing the crankshaft of the engine 4 from being dragged to rotate in the opposite direction and damaging the engine 4.
  • the inner clutch ring 62 can be unidirectionally rotated into the outer clutch ring 61, for example, a wedge or ratchet pawl can be provided between the opposite end faces of the inner clutch ring 62 and the outer clutch ring 61.
  • the hybrid system 100 further includes a torsion damper 7, which is disposed between the crankshaft of the engine 4 and the planetary gear carrier 24. In this embodiment, the vibration of the crankshaft is reduced by the torsion damper 7.
  • the hybrid system 100 also includes a power source electrically connected to the first drive motor 11 and the second drive motor 12 to supply power to them. This achieves the effect of two motors simultaneously driving the wheels, providing strong power without engine noise, and the second drive motor 12 can also supply power to the power source.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Hybrid Electric Vehicles (AREA)

Abstract

一种混动系统（100），包括电驱系统以及传动系统；电驱系统包括第一驱动电机（11）和第二驱动电机（12）；传动系统包括行星轮系，行星轮系包括设于第二驱动电机（12）的输出轴上的太阳轮（21），与太阳轮（21）啮合的行星轮（22）以及与行星轮（22）啮合的内齿圈（23）；其中，第一驱动电机（11）的输出轴以及内齿圈（23）均用以与差速器组件驱动连接，以使得第一驱动电机（11）和第二驱动电机（12）共同驱动差速器组件转动。

Description

混动系统
本申请要求于2024年5月9日申请的、申请号为202410567945.5的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及混动车辆技术领域，尤其涉及一种混动系统。
 背景技术
对于混合动力车，其动力总成包括发动机、驱动电机、变速器、动力电池等结构，动力的传递路线有并联模式、串联模式、发动机直驱模式、发电模式等多种动力传递路线。
通常所说的并联模式，是指将发动机中的曲轴端的动力和驱动电机端的动力同时传递给变速器轴齿，进而传递给车轮，这种并联模式的优点是提供的动力强劲。缺点是发动机噪音较大，影响了驾驶感受。
 技术问题
本申请的主要目的在于提供一种混动系统，旨在解决发动机和电机并联噪音较大的问题。
 技术解决方案
为实现上述目的，本申请提供了一种混动系统，所述混动系统包括：
电驱系统，包括第一驱动电机和第二驱动电机；以及，
传动系统，包括行星轮系，所述行星轮系包括设于所述第二驱动电机的输出轴上的太阳轮，与所述太阳轮啮合的行星轮以及与所述行星轮啮合的内齿圈；
其中，所述第一驱动电机的输出轴以及所述内齿圈均用以与差速器组件驱动连接，以使得所述第一驱动电机和所述第二驱动电机共同驱动所述差速器组件转动。
在一实施例中，所述第一驱动电机的输出轴和所述第二驱动电机的输出轴呈平行设置。
在一实施例中，所述第一驱动电机的输出轴上形成有第一驱动部，所述内齿圈上形成有第二驱动部；
所述混动系统还包括中间轴，所述第一驱动部与所述第二驱动部均驱动连接至所述中间轴上，且所述中间轴用以与所述差速器组件驱动连接。
在一实施例中，所述第一驱动电机的输出轴上形成有第一驱动部，所述内齿圈上形成有第二驱动部；
所述混动系统还包括两个中间轴，所述第一驱动部与所述第二驱动部分别驱动连接至两个所述中间轴上，两个所述中间轴均用以与所述差速器组件驱动连接。
在一实施例中，所述混动系统还包括发动机，所述发动机的曲轴与所述第二驱动电机的输出轴驱动连接。
在一实施例中，所述行星轮系还包括行星轮架，所述行星轮转动安装至所述行星轮架上，所述发动机的曲轴与所述行星轮架驱动连接。
在一实施例中，所述混动系统还包括混动变速箱；
所述行星轮架与所述混动变速箱之间设置有单向离合器，所述单向离合器用以使得所述行星轮架单向驱动所述太阳轮转动。
在一实施例中，所述单向离合器包括离合外圈以及离合内圈，所述离合外圈固定安装至所述混动变速箱上，所述离合内圈固定安装至所述行星轮架上，所述离合内圈单向转动安装至所述离合外圈内。
在一实施例中，所述混动系统还包括限扭减震器，所述限扭减震器设于所述发动机的曲轴与所述行星轮架之间。
在一实施例中，所述混动系统还包括电源，所述电源与所述第一驱动电机和所述第二驱动电机电性连接，用以向所述第一驱动电机和所述第二驱动电机供电。
 有益效果
本申请提供一种混动系统，所述混动系统设置有所述第一驱动电机和所述第二驱动电机，在日常工作时，所述第一驱动电机工作，所述第一驱动电机的输出轴与所述差速器组件驱动连接，将所述第一驱动电机的动力传递至所述差速器组件上，进而带动车轮转动，在需要更强的动力时，所述第一驱动电机和所述第二驱动电机同时工作，所述第二驱动电机的输出轴带动所述太阳轮转动，通过与所述太阳轮啮合的所述行星轮，将转动传递至所述内齿圈上，使得所述内齿圈产生转动，所述内齿圈与所述差速器组件驱动连接，将所述第二驱动电机的动力传递至所述差速器组件上，同时通过所述第一驱动电机和所述第二驱动电机向所述差速器组件提供动力，在保证混动系统的动力强劲的情况下，可以减少发动机产生的噪音，保证车辆的驾驶体验。
 附图说明
图1是本申请实施例方案提供的混动系统连接框图；
图2是图1中混动系统第一实施例的连接框图；
图3是图1中混动系统第二实施例的连接框图；
图4图1中单向离合器的立体结构示意图。
附图标号说明：
标号 名称 标号 名称
100 混动系统 3 中间轴
11 第一驱动电机 4 发动机
12 第二驱动电机 5 混动变速箱
21 太阳轮 6 单向离合器
22 行星轮 61 离合外圈
23 内齿圈 62 离合内圈
24 行星轮架 7 限扭减震器
本申请目的的实现、功能特点及优点将结合实施例，参照附图做进一步说明。
 本发明的实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请的一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
需要说明，若本申请实施例中有涉及方向性指示（诸如上、下、左、右、前、后……），则该方向性指示仅用于解释在某一特定姿态（如附图所示）下各部件之间的相对位置关系、运动情况等，如果该特定姿态发生改变时，则该方向性指示也相应地随之改变。
另外，若本申请实施例中有涉及“第一”、“第二”等的描述，则该“第一”、“第二”等的描述仅用于描述目的，而不能理解为指示或暗示其相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。另外，全文中出现的“和/或”的含义，包括三个并列的方案，以“A和/或B”为例，包括A方案、或B方案、或A和B同时满足的方案。另外，各个实施例之间的技术方案可以相互结合，但是必须是以本领域普通技术人员能够实现为基础，当技术方案的结合出现相互矛盾或无法实现时应当认为这种技术方案的结合不存在，也不在本申请要求的保护范围之内。
对于混合动力车，其动力总成包括发动机、驱动电机、变速器、动力电池等结构，动力的传递路线有并联模式、串联模式、发动机直驱模式、发电模式等多种动力传递路线。
通常所说的并联模式，是指将发动机中的曲轴端的动力和驱动电机端的动力同时传递给变速器轴齿，进而传递给车轮，这种并联模式的优点是提供的动力强劲。缺点是发动机噪音较大，影响了驾驶感受。
请参阅图1至图2，本申请提供一种混动系统100，包括电驱系统以及传动系统；所述电驱系统包括第一驱动电机11和第二驱动电机12；所述传动系统包括行星轮系，所述行星轮系包括设于所述第二驱动电机12的输出轴上的太阳轮21，与所述太阳轮21啮合的行星轮22以及与所述行星轮22啮合的内齿圈23；其中，所述第一驱动电机11的输出轴以及所述内齿圈23均用以与差速器组件驱动连接，以使得所述第一驱动电机11和所述第二驱动电机12共同驱动所述差速器组件转动。
在本申请提供的实施例中，所述混动系统100设置有所述第一驱动电机11和所述第二驱动电机12，在日常工作时，所述第一驱动电机11工作，所述第一驱动电机11的输出轴与所述差速器组件驱动连接，将所述第一驱动电机11的动力传递至所述差速器组件上，进而带动车轮转动，在需要更强的动力时，所述第一驱动电机11和所述第二驱动电机12同时工作，所述第二驱动电机12的输出轴带动所述太阳轮21转动，通过与所述太阳轮21啮合的所述行星轮22，将转动传递至所述内齿圈23上，使得所述内齿圈23产生转动，所述内齿圈23与所述差速器组件驱动连接，将所述第二驱动电机12的动力传递至所述差速器组件上，同时通过所述第一驱动电机11和所述第二驱动电机12向所述差速器组件提供动力，在保证混动系统的动力强劲的情况下，可以减少发动机产生的噪音，保证车辆的驾驶体验。
在一实施例中，所述第一驱动电机11的输出轴和所述第二驱动电机12的输出轴呈平行设置。在本实施例中，通过输出轴的平行布设，可以减少两个电机占用的空间，使得两个电机可以并排设置，可以在占用一个方向空间的基础上进行集成。
另一方面，在本申请提供的第一实施例中，所述第一驱动电机11的输出轴上形成有第一驱动部，所述内齿圈23上形成有第二驱动部；所述混动系统100还包括中间轴3，所述第一驱动部与所述第二驱动部均驱动连接至所述中间轴3上，且所述中间轴3用以与所述差速器组件驱动连接。在本实施例中，所述第一驱动电机11和所述第二驱动电机12通过同一个中间轴3向外输出动力，可以进一步节省所述混动系统的占用空间。
其中，需要说明的是，所述第一驱动部和所述第二驱动部有多种实施方式，例如通过设置传动带，绕设在所述第一驱动部、第二驱动部和所述中间轴3之间，通过所述传动带传动。
在本实施例中，所述第一驱动部上设置有第一齿轮，所述第二驱动部上设置有第二齿轮，所述中间轴3上对应所述第一齿轮和所述第二齿轮设置有配合齿轮，所述第一齿轮和所述第二齿轮同时啮合在所述配合齿轮上，驱动所述中间轴3转动。
同样的，所述中间轴3用以与所述差速器组件驱动连接，也有多种驱动方式，在本实施例中，所述中间轴3与所述差速器组件之间通过相互啮合的齿轮组进行驱动连接。
另一方面，请参阅图3，在本申请提供的第二实施例中，所述第一驱动电机11的输出轴上形成有第一驱动部，所述内齿圈23上形成有第二驱动部；所述混动系统100还包括两个中间轴3，所述第一驱动部与所述第二驱动部分别驱动连接至两个所述中间轴3上，两个所述中间轴3均用以与所述差速器组件驱动连接。在本实施例中，所述第一驱动电机11和所述内齿圈23分别通过不同的所述中间轴3同时连接至所述差速器组件上，通过不同的所述中间轴3，对应两个电机的不同转速，可以通过与不同的所述中间轴3的配合实现输出的转速相同，可以降低单个轴传动扭矩控制的问题。
同样的，所述第一驱动部和所述第二驱动部有多种实施方式，在本实施例中，通过相互啮合的齿轮分别与两个所述中间轴3啮合传动，具体的传动过程和方式在此不再进行赘述。
另一方面，所述混动系统100还包括发动机4，所述发动机4的曲轴与所述第二驱动电机12的输出轴驱动连接。在本实施例中，所述混动系统100还包括发动机4，通过所述发动机4，使得所述混动系统100可以实现油电混合动力，以满足用户的使用需求，其中所述发动机4工作时，将所述发动机4上的转动传递至所述第二驱动电机12的输出轴上，可以通过所述第二驱动电机12进行反向充电，同时，还可以将所述发动机4上的动力输出至所述第二驱动电机12的输出轴上，实现发动机3和所述第一驱动电机11的并联驱动。
在使用过程中，可以通过所述第一驱动电机11单独驱动所述差速器组件转动，或者通过所述第二驱动电机12和所述第一驱动电机11共同驱动所述差速器组件转动，或者通过所述发动机4和所述第一驱动电机11的并联驱动。
在一实施例中，所述行星轮系还包括行星轮架24，所述行星轮22转动安装至所述行星轮架24上，所述发动机4的曲轴与所述行星轮架24驱动连接。在本实施例中，所述发动机4和所述第二驱动电机12通过所述行星轮架24驱动连接，便于所述发动机4和所述第二驱动电机12之间的驱动连接，无需设置额外的连接结构。
其中，在所述第二驱动电机12的输出轴转动时，所述太阳轮21转动，由于所述行星轮架24和所述发动机4连接，在发动机4未启动的情况下，在所述发动机4的曲轴的阻力下，所述行星轮架24保持固定，所述太阳轮21驱动所述行星轮22转动，带动所述内齿圈23产生转动，进而将动力输出至所述差速器组件上；而在所述发动机4的曲轴转动时，动力输出至所述行星轮架24上，驱动所述行星轮22绕所述太阳轮转动，进而驱动所述第二驱动电机的输出轴转动发电，并可以驱动所述内齿圈23转动，向外输出动力。
在一实施例中，所述混动系统100还包括混动变速箱5；所述行星轮架24与所述混动变速箱5之间设置有单向离合器6，所述单向离合器6用以使得所述行星轮架24单向驱动所述太阳轮21转动。在本实施例中，在所述发动机4未启动时，单靠所述发动机4曲轴的阻力难以保证所述行星轮架24的固定，因此，在本实施例中，通过所述单向离合器6，使得仅可以通过所述发动机4驱动所述行星轮架24转动，进而带动所述太阳轮21转动，而不能使得所述太阳轮21转动带动所述行星轮架24反向转动。
其中，所述单向离合器6有多种实施方式，可以采用现有的成品单向离合器。
在本实施例中，请参阅图4，所述单向离合器6包括离合外圈61以及离合内圈62，所述离合外圈61固定安装至所述混动变速箱5上，所述离合内圈62固定安装至所述行星轮架24上，所述离合内圈62单向转动安装至所述离合外圈61内。在本实施例中，所述离合内圈62单向转动安装至所述离合外圈61，在所述太阳轮21转动时，给予所述行星轮架24一个转动的驱动力，由于所述行星轮架24相对于所述混动变速箱5只能单向转动，因此所述太阳轮21无法驱动所述行星轮架24转动，只能保持在固定的位置，而在所述发电机4工作时，所述发电机的输出轴直接驱动所述行星轮架24转动，由于单向转动，使得所述行星轮架24可以带动所述太阳轮21进行转动，从而避免所述发动机4的曲轴被拖着反向旋转，损坏发动机4。
需要说明的是，所述离合内圈62单向转动安装至所述离合外圈61内的方式有多种，例如在所述离合内圈62和所述离合外圈61的相对端面之间设置楔块或棘轮棘爪。
另外，在本实施例中，所述混动系统100还包括限扭减震器7，所述限扭减震器7设于所述发动机4的曲轴与所述行星轮架24之间。在本实施例中，通过所述限扭减震器7，降低曲轴的振动。
另一方面，所述混动系统100还包括电源，所述电源与所述第一驱动电机11和所述第二驱动电机12电性连接，用以向所述第一驱动电机11和所述第二驱动电机12供电。实现了两个电机同时驱动车轮的效果，动力强劲，且没有发动机噪音，还可以通过所述第二驱动电机12向所述电源内供电。
以上仅为本申请的可选实施例，并非因此限制本申请的专利范围，凡是利用本申请说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本申请的专利保护范围内。

Claims (10)

  1. 一种混动系统，其中，所述混动系统包括：
    电驱系统，包括第一驱动电机和第二驱动电机；以及，
    传动系统，包括行星轮系，所述行星轮系包括设于所述第二驱动电机的输出轴上的太阳轮，与所述太阳轮啮合的行星轮以及与所述行星轮啮合的内齿圈；
    其中，所述第一驱动电机的输出轴以及所述内齿圈均用以与差速器组件驱动连接，以使得所述第一驱动电机和所述第二驱动电机共同驱动所述差速器组件转动。
  2. 根据权利要求1所述的混动系统，其中，所述第一驱动电机的输出轴和所述第二驱动电机的输出轴呈平行设置。
  3. 根据权利要求1所述的混动系统，其中，所述第一驱动电机的输出轴上形成有第一驱动部，所述内齿圈上形成有第二驱动部；
    所述混动系统还包括中间轴，所述第一驱动部与所述第二驱动部均驱动连接至所述中间轴上，且所述中间轴用以与所述差速器组件驱动连接。
  4. 根据权利要求1所述的混动系统，其中，所述第一驱动电机的输出轴上形成有第一驱动部，所述内齿圈上形成有第二驱动部；
    所述混动系统还包括两个中间轴，所述第一驱动部与所述第二驱动部分别驱动连接至两个所述中间轴上，两个所述中间轴均用以与所述差速器组件驱动连接。
  5. 根据权利要求1所述的混动系统，其中，所述混动系统还包括发动机，所述发动机的曲轴与所述第二驱动电机的输出轴驱动连接。
  6. 根据权利要求5所述的混动系统，其中，所述行星轮系还包括行星轮架，所述行星轮转动安装至所述行星轮架上，所述发动机的曲轴与所述行星轮架驱动连接。
  7. 根据权利要求6所述的混动系统，其中，所述混动系统还包括混动变速箱；
    所述行星轮架与所述混动变速箱之间设置有单向离合器，所述单向离合器用以使得所述行星轮架单向驱动所述太阳轮转动。
  8. 根据权利要求7所述的混动系统，其中，所述单向离合器包括离合外圈以及离合内圈，所述离合外圈固定安装至所述混动变速箱上，所述离合内圈固定安装至所述行星轮架上，所述离合内圈单向转动安装至所述离合外圈内。
  9. 根据权利要求6所述的混动系统，其中，所述混动系统还包括限扭减震器，所述限扭减震器设于所述发动机的曲轴与所述行星轮架之间。
  10. 根据权利要求1所述的混动系统，其中，所述混动系统还包括电源，所述电源与所述第一驱动电机和所述第二驱动电机电性连接，用以向所述第一驱动电机和所述第二驱动电机供电。
PCT/CN2024/137879 2024-05-09 2024-12-09 混动系统 Pending WO2025232183A1 (zh)

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