WO2022141237A1 - 一种用于混合动力变速箱内部的扭矩保护装置及变速箱 - Google Patents

一种用于混合动力变速箱内部的扭矩保护装置及变速箱 Download PDF

Info

Publication number
WO2022141237A1
WO2022141237A1 PCT/CN2020/141561 CN2020141561W WO2022141237A1 WO 2022141237 A1 WO2022141237 A1 WO 2022141237A1 CN 2020141561 W CN2020141561 W CN 2020141561W WO 2022141237 A1 WO2022141237 A1 WO 2022141237A1
Authority
WO
WIPO (PCT)
Prior art keywords
torque
input shaft
friction plate
transmission input
protection device
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.)
Ceased
Application number
PCT/CN2020/141561
Other languages
English (en)
French (fr)
Inventor
石海鹏
王瑞平
钱宗行
宋伟
谭艳军
林霄喆
安聪慧
肖逸阁
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.)
Yiwu Geely Automatic Transmission Co Ltd
Zhejiang Geely Holding Group Co Ltd
Ningbo Geely Royal Engine Components Co Ltd
Zhejiang Geely Power Train Co Ltd
Original Assignee
Yiwu Geely Automatic Transmission Co Ltd
Zhejiang Geely Holding Group Co Ltd
Ningbo Geely Royal Engine Components Co Ltd
Zhejiang Geely Power Train 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 Yiwu Geely Automatic Transmission Co Ltd, Zhejiang Geely Holding Group Co Ltd, Ningbo Geely Royal Engine Components Co Ltd, Zhejiang Geely Power Train Co Ltd filed Critical Yiwu Geely Automatic Transmission Co Ltd
Priority to PCT/CN2020/141561 priority Critical patent/WO2022141237A1/zh
Priority to CN202080105952.3A priority patent/CN116472414A/zh
Publication of WO2022141237A1 publication Critical patent/WO2022141237A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

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
    • B60K6/38—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 driveline clutches
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D13/00—Friction clutches
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D13/00—Friction clutches
    • F16D13/22—Friction clutches with axially-movable clutching members
    • F16D13/38—Friction clutches with axially-movable clutching members with flat clutching surfaces, e.g. discs
    • F16D13/52—Clutches with multiple lamellae ; Clutches in which three or more axially moveable members are fixed alternately to the shafts to be coupled and are pressed from one side towards an axially-located member

Definitions

  • the invention relates to the field of vehicle parts, in particular to a torque protection device and a gearbox used in a hybrid gearbox.
  • the hybrid gearbox pointed out in this paper requires the engine to drive directly.
  • the direct drive of the engine can improve fuel efficiency and avoid the conversion of fuel into electrical energy and then into kinetic energy. loss.
  • Most of the hybrid gearboxes on the market do not use torque protection devices.
  • One of them is that the hybrid gearbox does not have an engine direct drive mode, and the other is that a conventional wet clutch is used to connect the engine input, and a clutch is commonly used
  • the engine is incorporated into the drive system, so that the engine is directly driven when the vehicle is running at high speed, so as to improve the fuel economy of the vehicle.
  • the complex structure of conventional wet clutches and the need for a complete hydraulic control system and high-pressure oil pump system the cost of design and development, components and software control has increased.
  • the present invention provides a torque protection device for the interior of a hybrid transmission that does not require a high-cost clutch device equipped with a complete hydraulic system and can protect the torque of the shifting structure.
  • a torque protection device used in a hybrid transmission which is characterized in that it includes: a transmission input shaft, a motor support, a friction plate group, a diaphragm spring and a fixed part; one end of the transmission input shaft is used to receive engine transmission The other end of the transmission input shaft is used to transmit torque to one end of the friction plate group; the motor bracket is used to transmit torque to the other end of the friction plate group; the diaphragm spring is arranged at the between the friction plate group and the fixing piece; one end of the fixing piece is fixed on the motor bracket, and the other end of the fixing piece presses the diaphragm spring; When the fluctuation range of the torque transmitted by the motor bracket to the friction plate group exceeds a preset torque fluctuation range, the friction plate group generates internal friction and heat under the pressure of the diaphragm spring to release the conversion energy.
  • the transmission input shaft, the friction plate set and the The motor bracket is rigidly connected.
  • the motor bracket is provided with a first end surface; the axial position of the transmission input shaft passes through the first end surface of the motor bracket and the transmission input shaft The axial fixing structure is fixed.
  • the axial fixing structure of the transmission input shaft includes a pressure plate and a pressure plate snap ring; one side of the pressure plate is used to define the axial position of the transmission input shaft, and the other side of the pressure plate is connected by a spline connected with the motor bracket in a way; the pressing plate snap ring is used to define the axial position of the pressing plate.
  • the friction plate group includes at least one friction plate and a pair of steel plates matched with the friction plates; the friction plates and the pair of steel plates are alternately arranged; the friction plates are used to receive the transmission of the transmission input shaft. Torque; the dual steel sheet is used to transmit torque to the motor bracket.
  • the transmission input shaft includes a fixedly connected inner shaft structure and an outer hub structure; the inner shaft structure and the outer hub structure are connected by welding or riveting; the inner shaft structure is used to receive the engine The transmitted torque; the outer hub structure is used to output torque to the friction plate set.
  • the transmission input shaft is respectively connected with the engine and the friction plate group by means of spline connection to form torque transmission.
  • an oil hole for discharging oil is provided on the motor support at a position opposite to the diaphragm spring.
  • an overheat protection device is also included, and the overheat protection device is configured to issue a warning signal when the temperature of the torque protection device is higher than a preset temperature.
  • the invention also discloses a gearbox, which includes the torque protection device used in the hybrid gearbox according to any of the above solutions.
  • the torque protection device and the gearbox for use in the hybrid gearbox provided by the present invention have the following beneficial effects: only by increasing the diaphragm spring and the friction plate group, and thus changing the structure of the motor bracket and the transmission input shaft , so that the torque protection device used in the hybrid gearbox of the present invention can maintain a stable torque protection state when the torque fluctuation at the engine end or the output end of the transmission exceeds the torque protection range;
  • the torque protection device inside the gearbox has a simple structure, lower cost, and stable torque state protection.
  • FIG. 1 is a schematic structural diagram of a torque protection device used in a hybrid transmission according to an embodiment of the present invention.
  • 1-transmission input shaft 11-inner shaft structure, 12-outer hub structure, 2-motor bracket, 21-first end face, 22-oil hole, 3-friction plate group, 31-friction plate, 32- Dual steel sheet, 4-diaphragm spring, 5-fixed piece, 6-axial fixing structure of transmission input shaft, 61-pressing plate, 62-pressing plate snap ring.
  • references herein to "one embodiment” or “an embodiment” refers to a particular feature, structure, or characteristic that may be included in at least one implementation of the present invention.
  • the orientations or positional relationships indicated by the terms “upper”, “lower”, “top”, “bottom”, etc. are based on the orientations or positional relationships shown in the accompanying drawings, only for the purpose of It is convenient to describe the present invention and to simplify the description, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention.
  • the torque protection device used in the hybrid transmission includes: a transmission input shaft 1 , a motor bracket 2 , a friction plate group 3 , a diaphragm spring 4 and a fixing member 5 ;
  • One end of the transmission input shaft 1 is used to receive the torque transmitted by the engine; the other end of the transmission input shaft 1 is used to transmit torque to one end of the friction plate set 3; the motor bracket 2 is used to transmit torque to the The other end of the friction plate group 3; the diaphragm spring 4 is arranged between the friction plate group 4 and the fixing member 5.
  • the diaphragm spring 4 can pass the return spring group, and more One end of the fixing member 5 is fixed on the motor bracket 2, and the other end of the fixing member 5 presses the diaphragm spring 4; when the transmission input shaft is driven by the transmission input shaft 1 or when the fluctuation range of the torque transmitted from the motor bracket 2 to the friction plate group 3 exceeds the preset torque fluctuation range, the friction plate group 3 generates internal friction under the pressure of the diaphragm spring 4 to generate heat. The conversion energy is released to form torque protection for the transmission components inside the hybrid transmission. .
  • the torque protection device used in the hybrid gearbox only increases the diaphragm spring 4 and the friction plate group 3, and thus changes the structure of the motor bracket 2 and the transmission input shaft 1, so that the The torque protection device used in the hybrid gearbox can maintain a stable torque protection state when the torque fluctuation at the engine end or the output end of the transmission exceeds the torque protection range; the invention relates to the torque protection used in the hybrid gearbox. Simple device structure, lower cost, stable torque state protection
  • the transmission input shaft 1 or the motor bracket 2 to the friction plate set 3 when the fluctuation range of the torque transmitted by the transmission input shaft 1 or the motor bracket 2 to the friction plate set 3 does not exceed a preset torque fluctuation range, the transmission input The shaft 1 , the friction plate group 3 and the motor bracket 2 are rigidly connected.
  • the torque protection device for the interior of the hybrid gearbox further includes a transmission input shaft axial fixing structure 6; the The motor bracket 2 is provided with a first end surface 21 ; the axial position of the transmission input shaft 1 is fixed by the first end surface 21 of the motor bracket 2 and the transmission input shaft axial fixing structure 6 .
  • the axial fixing structure 6 of the transmission input shaft includes a pressure plate 61 and a pressure plate snap ring 62; one side of the pressure plate 61 is used to define the The axial position of the transmission input shaft 1, the other side of the pressure plate 61 is connected to the motor bracket 2 by spline connection; the pressure plate snap ring 62 is used to limit the axial position of the pressure plate 61 , it is worth noting that the pressure plate snap ring 62 can be realized by bolt connection or other equivalent connection form.
  • the diaphragm spring 4 defines the axial position of the transmission input shaft 1 and eliminates said pressure plate snap ring 62 .
  • the friction plate group 3 includes at least one friction plate 31 and a pair of steel plates 32 matched with the friction plate 31; the friction plate 31 and the pair of steel plates 32 are alternately arranged; the friction plate 31 is used to receive the torque transmitted by the transmission input shaft 4 ; the dual steel plate 32 is used to transmit the torque to the motor bracket 2 .
  • the torque protection device can be adapted to different preset torque protection ranges by adjusting the thickness of at least one pair of steel sheets 32 . It is worth noting that the torque fluctuation may be generated by the side of the pair of steel sheets 32, and the torque direction at this time is opposite to the direction described above.
  • the transmission input shaft 1 includes an inner shaft structure 11 and an outer hub structure 12 that are fixedly connected; the inner shaft structure 11 and the outer hub structure 12 are connected by welding or riveting; The inner shaft structure 11 is used for receiving the torque transmitted by the engine; the outer hub structure 12 is used for outputting the torque to the friction plate set 3 .
  • the transmission input shaft 1 is respectively connected with the engine and the friction plate set 3 by means of spline connection to form torque transmission.
  • an oil hole 22 for discharging oil is provided on the motor bracket 2 at a position opposite to the diaphragm spring 4 .
  • an overheating protection device is further included, and the overheating protection device is configured to issue a warning signal when the temperature of the torque protection device is higher than a preset temperature; specifically, Overheating protection can be programmed through the transmission program for the risk that the engine will not be able to drive directly if the torque protection device fails.
  • the torque protection device can also determine whether the actual torque protection value is consistent with the designed torque protection range through offline detection.
  • the torque protection device used in the hybrid transmission includes: a transmission input shaft 1 , a motor bracket 2 , a friction plate group 3 , a diaphragm spring 4 and a fixing member 5 ;
  • One end of the transmission input shaft 1 is used to receive the torque transmitted by the engine; the other end of the transmission input shaft 1 is used to transmit torque to one end of the friction plate set 3; the motor bracket 2 is used to transmit torque to the The other end of the friction plate group 3; the diaphragm spring 4 is arranged between the friction plate group 4 and the fixing member 5.
  • the diaphragm spring 4 can pass the return spring group, and more One end of the fixing member 5 is fixed on the motor bracket 2, and the other end of the fixing member 5 presses the diaphragm spring 4; when the transmission input shaft is driven by the transmission input shaft 1 or when the fluctuation range of the torque transmitted from the motor bracket 2 to the friction plate group 3 exceeds the preset torque fluctuation range, the friction plate group 3 generates internal friction under the pressure of the diaphragm spring 4 to generate heat.
  • the torque protection device used inside the hybrid gearbox further includes a transmission input shaft axial fixing structure 6; the motor bracket 2 is provided with a first end face 21; the axial position of the transmission input shaft 1 passes through The first end surface 21 of the motor bracket 2 and the transmission input shaft are fixed to the axial fixing structure 6 .
  • the axial fixing structure 6 of the transmission input shaft includes a pressure plate 61 and a pressure plate snap ring 62; one side of the pressure plate 61 is used to define the axial position of the transmission input shaft 1, so The other side of the pressure plate 61 is connected to the motor bracket 2 by spline connection; the pressure plate snap ring 62 is used to limit the axial position of the pressure plate 61.
  • the pressure plate snap The ring 62 can be realized by bolt connection or other equivalent connection form, in addition, regardless of the assembly sequence, the pressure plate 61 can define the shaft of the transmission input shaft 1 through the fixing member 5 or the diaphragm spring 4 position and remove the platen snap ring 62.
  • the friction plate group 3 includes at least one friction plate 31 and a pair of steel plates 32 matched with the friction plate 31; the friction plates 31 and the pair of steel plates 32 are alternately arranged; The torque transmitted by the transmission input shaft 4 ; the dual steel sheet 32 is used to transmit the torque to the motor bracket 2 .
  • the torque protection device can be adapted to different preset torque protection ranges by adjusting the thickness of at least one pair of steel sheets 32 .
  • the transmission input shaft 1 includes a fixedly connected inner shaft structure 11 and an outer hub structure 12; the inner shaft structure 11 and the outer hub structure 12 are connected by welding or riveting; the inner shaft structure 11 is used for receiving The torque transmitted by the engine; the outer hub structure 12 is used to output torque to the friction plate set 3 .
  • the transmission input shaft 1 is respectively connected with the engine and the friction plate set 3 by means of spline connection to form torque transmission.
  • an oil hole 22 for draining oil is provided on the motor bracket 2 at a position opposite to the diaphragm spring 4 .
  • the torque protection device further includes an overheat protection device, and the overheat protection device is used to issue a warning signal when the temperature of the torque protection device is higher than a preset temperature; specifically, the overheating can be set through a transmission program It is used for the risk that the engine cannot be directly driven due to the failure of the torque protection device.
  • the torque protection device can also determine whether the actual torque protection value is consistent with the designed torque protection range through offline detection.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Operated Clutches (AREA)
  • General Details Of Gearings (AREA)

Abstract

一种用于混合动力变速箱内部的扭矩保护装置，包括：变速器输入轴（1）、电机支架（2）、摩擦片组（3）、膜片弹簧（4）和固定件（5）；变速器输入轴（1）的一端用于接收发动机传递的扭矩；变速器输入轴（1）的另一端用于传递扭矩到摩擦片组（3）的一端；电机支架（2）用于传递扭矩到摩擦片组（3）的另一端；膜片弹簧（4）设置于摩擦片组（3）和固定件（5）之间；固定件（5）的一端固定于电机支架（2）上，固定件（5）的另一端挤压膜片弹簧（4）；当由变速器输入轴（1）或由电机支架（2）传递到摩擦片组（3）的扭矩的波动范围超过预设扭矩波动范围时，摩擦片组（3）在膜片弹簧（4）的压力作用下内部摩擦发热以释放转换能量。

Description

一种用于混合动力变速箱内部的扭矩保护装置及变速箱 技术领域
本发明涉及车辆零部件领域，具体涉及一种用于混合动力变速箱内部的扭矩保护装置及变速箱。
背景技术
随着汽车行业的快速发展和国家排放标准要求的升级，混合动力汽车日益发展已成为必然趋势。为了更好的匹配混合动力车型，混合动力专用变速箱的发展成为各主机厂设计的受选。
本文所指出的混合动力变速箱是需要发动机直驱工况的，在汽车高速行驶的过程中，发动机的直接驱动可以更高的提升燃油效率，避免了燃油转换为电能，再转换为动能的中间损失。目前市面上的大多数混合动力变速箱未采用扭矩保护装置，其中一种情况是该混合动力变速箱不具备发动机直接驱动模式，另外一种情况是采用常规湿式离合器连接发动机输入端，常用一个离合器将发动机并入驱动系统，使车辆高速行驶时用发动机直接驱动，以提高车辆燃油经济性。但由于常规的湿式离合器结构复杂，并且需要完整的液压控制系统和高压油泵系统，导致设计开发，零部件和软件控制成本均有所上升。
发明内容
针对背景技术中的技术问题，本发明提供了一种既不需要高成本的配备全套液压系统的离合器装置又能实现对变速结构的扭矩进行保护的用于混合动力变速箱内部的扭矩保护装置。
本发明是通过以下技术方案实现的：
一种用于混合动力变速箱内部的扭矩保护装置，其特征在于，包括：变速器输入轴、电机支架、摩擦片组、膜片弹簧和固定件；所述变速器输入轴的一端用于接收发动机传递的扭矩；所述变速器 输入轴的另一端用于传递扭矩到所述摩擦片组的一端；所述电机支架用于传递扭矩到所述摩擦片组的另一端；所述膜片弹簧设置于所述摩擦片组和所述固定件之间；所述固定件的一端固定于所述电机支架上，所述固定件的另一端挤压所述膜片弹簧；当由所述变速器输入轴或由所述电机支架传递到所述摩擦片组的扭矩的波动范围超过预设扭矩波动范围时，所述摩擦片组在所述膜片弹簧的压力作用下内部摩擦发热以释放转换能量。
进一步地，当由所述变速器输入轴或由所述电机支架传递到所述摩擦片组的扭矩的波动范围未超过预设扭矩波动范围时，所述变速器输入轴、所述摩擦片组和所述电机支架刚性连接。
进一步地，还包括变速器输入轴轴向固定结构；所述电机支架上设有第一端面；所述变速器输入轴的轴向位置通过所述电机支架的所述第一端面和所述变速器输入轴轴向固定结构固定。
进一步地，所述变速器输入轴轴向固定结构包括压板和压板卡环；所述压板的一侧用于限定所述变速器输入轴的轴向位置，所述压板的另一侧通过花键连接的方式与所述电机支架连接；所述压板卡环用于限定所述压板的轴向位置。
进一步地，摩擦片组包括至少一个摩擦片和与所述摩擦片配合的对偶钢片；所述摩擦片和所述对偶钢片交替设置；所述摩擦片用于接收所述变速器输入轴传递的扭矩；所述对偶钢片用于传递扭矩到所述电机支架。
进一步地，所述变速器输入轴包括固定连接的内轴结构和外毂结构；所述内轴结构和所述外毂结构通过焊接或铆接的方式连接；所述内轴结构用于接收所述发动机传递的扭矩；所述外毂结构用于输出扭矩到所述摩擦片组。
进一步地，所述变速器输入轴通过花键连接的方式分别与所述发动机和所述摩擦片组连接，形成扭矩传递。
进一步地，所述电机支架上与所述膜片弹簧相对的位置设有用于使油排出的油孔。
进一步地，还包括过热保护装置，所述过热保护装置用于在所述扭矩保护装置的温度高于预设温度时发出警告信号。
本发明还公开了一种变速箱，所述变速箱包括上述任一方案所述的用于混合动力变速箱内部的扭矩保护装置。
采用上述技术方案，本发明提供的用于混合动力变速箱内部的扭矩保护装置及变速箱具有如下有益效果：仅通过增加膜片弹簧和摩擦片组，并因此更改了电机支架和变速器输入轴结构，使得本发明涉及的用于混合动力变速箱内部的扭矩保护装置，在发动机端或变速器输出端产生扭矩波动超过扭矩保护范围时，可以保持稳定的扭矩保护状态；本发明涉及的用于混合动力变速箱内部的扭矩保护装置结构简单、成本更低、扭矩状态保护稳定。
附图说明
为了更清楚地说明本发明的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其它附图。
图1为本发明实施例提供的用于混合动力变速箱内部的扭矩保护装置的结构示意图。
图中，1-变速器输入轴、11-内轴结构、12-外毂结构、2-电机支架、21-第一端面、22-油孔、3-摩擦片组、31-摩擦片、32-对偶钢片、4-膜片弹簧、5-固定件、6-变速器输入轴轴向固定结构、61-压板、62-压板卡环。
具体实施方式
下面将结合本发明实施例中的附图，对本发明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发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本 领域普通技术人员在没有作出创造性劳动的前提下所获得的所有其他实施例，都属于本发明保护的范围。
此处所称的“一个实施例”或“实施例”是指可包含于本发明至少一个实现方式中的特定特征、结构或特性。在本发明的描述中，需要理解的是，术语“上”、“下”、“顶”、“底”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
如图1所示，本发明实施例涉及的用于混合动力变速箱内部的扭矩保护装置，包括：变速器输入轴1、电机支架2、摩擦片组3、膜片弹簧4和固定件5；所述变速器输入轴1的一端用于接收发动机传递的扭矩；所述变速器输入轴1的另一端用于传递扭矩到所述摩擦片组3的一端；所述电机支架2用于传递扭矩到所述摩擦片组3的另一端；所述膜片弹簧4设置于所述摩擦片组4和所述固定件5之间，值得说明的是，所述膜片弹簧4可以通过回位弹簧组，多个螺旋弹簧或波形弹簧的方式实现；所述固定件5的一端固定于所述电机支架2上，所述固定件5的另一端挤压所述膜片弹簧4；当由所述变速器输入轴1或由所述电机支架2传递到所述摩擦片组3的扭矩的波动范围超过预设扭矩波动范围时，所述摩擦片组3在所述膜片弹簧4的压力作用下内部摩擦发热以释放转换能量，从而对所述混合动力变速箱内部的传动部件形成扭矩保护。。
本发明实施例涉及的用于混合动力变速箱内部的扭矩保护装置，仅通过增加膜片弹簧4和摩擦片组3，并因此更改了电机支架2和变速器输入轴1结构，使得本发明涉及的用于混合动力变速箱内部的扭矩保护装置，在发动机端或变速器输出端产生扭矩波动超过扭矩保护范围时，可以保持稳定的扭矩保护状态；本发明涉及的用于混合动力变速箱内部的扭矩保护装置结构简单、成本更低、扭矩状态保护稳定
在本发明另一实施例中，当由所述变速器输入轴1或由所述电机支架2传递到所述摩擦片组3的扭矩的波动范围未超过预设扭矩波动范围时，所述变速器输入轴1、所述摩擦片组3和所述电机支架2刚性连接。
为了对所述变速器输入轴1的轴向位置进行限定，在本发明另一实施例中，所述用于混合动力变速箱内部的扭矩保护装置还包括变速器输入轴轴向固定结构6；所述电机支架2上设有第一端面21；所述变速器输入轴1的轴向位置通过所述电机支架2的所述第一端面21和所述变速器输入轴轴向固定结构6固定。为了缩短了轴向设计空间，在本发明进一步地另一实施例中，所述变速器输入轴轴向固定结构6包括压板61和压板卡环62；所述压板61的一侧用于限定所述变速器输入轴1的轴向位置，所述压板61的另一侧通过花键连接的方式与所述电机支架2连接；所述压板卡环62用于限定所述压板61的轴向位置，值得说明的是，所述压板卡环62可以通过螺栓连接或其他等同方式的连接形式实现，此外，不考虑装配顺序的情况下，所述压板61可以通过所述固定件5或所述膜片弹簧4限定变速器输入轴1的轴向位置并取消所述压板卡环62。
在本发明另一实施例中，其特征在于，所述摩擦片组3包括至少一个摩擦片31和与所述摩擦片31配合的对偶钢片32；所述摩擦片31和所述对偶钢片32交替设置；所述摩擦片31用于接收所述变速器输入轴4传递的扭矩；所述对偶钢片32用于传递扭矩到所述电机支架2。可以通过调整至少一个对偶钢片32的厚度，使得该扭矩保护装置适用于不同的所述预设扭矩保护范围。值得说明的是，扭矩波动可能由所述对偶钢片32一侧产生，此时的扭矩方向同上述说明方向是相反的。
在本发明另一实施例中，所述变速器输入轴1包括固定连接的内轴结构11和外毂结构12；所述内轴结构11和所述外毂结构12通过焊接或铆接的方式连接；所述内轴结构11用于接收所述发动机传递的扭矩；所述外毂结构12用于输出扭矩到所述摩擦片组3。
在本发明另一实施例中，变速器输入轴1通过花键连接的方式分别与所述发动机和所述摩擦片组3连接，形成扭矩传递。
为了避免可能出现的困油问题，在本发明另一实施例中，所述电机支架2上与所述膜片弹簧4相对的位置设有用于使油排出的油孔22。
为了实现过热保护，出于在本发明另一实施例中，还包括过热保护装置，所述过热保护装置用于在所述扭矩保护装置的温度高于预设温度时发出警告信号；具体地，可以通过变速器程序设定过热保护，用于该扭矩保护装置失效可能带来的发动机无法直接驱动的风险。
本发明另一实施例涉及的扭矩保护装置还可以通过下线检测，判定实际扭矩保护值是否和设计扭矩保护范围一致。
基于上述各实施例，下面以一个更为具体地实施方式对本发明做出更为详尽地说明。
如图1所示，本发明实施例涉及的用于混合动力变速箱内部的扭矩保护装置，包括：变速器输入轴1、电机支架2、摩擦片组3、膜片弹簧4和固定件5；所述变速器输入轴1的一端用于接收发动机传递的扭矩；所述变速器输入轴1的另一端用于传递扭矩到所述摩擦片组3的一端；所述电机支架2用于传递扭矩到所述摩擦片组3的另一端；所述膜片弹簧4设置于所述摩擦片组4和所述固定件5之间，值得说明的是，所述膜片弹簧4可以通过回位弹簧组，多个螺旋弹簧或波形弹簧的方式实现；所述固定件5的一端固定于所述电机支架2上，所述固定件5的另一端挤压所述膜片弹簧4；当由所述变速器输入轴1或由所述电机支架2传递到所述摩擦片组3的扭矩的波动范围超过预设扭矩波动范围时，所述摩擦片组3在所述膜片弹簧4的压力作用下内部摩擦发热以释放转换能量，从而对所述混合动力变速箱内部的传动部件形成扭矩保护；当由所述变速器输入轴1或由所述电机支架2传递到所述摩擦片组3的扭矩的波动 范围未超过预设扭矩波动范围时，所述变速器输入轴1、所述摩擦片组3和所述电机支架2刚性连接。
其中，所述用于混合动力变速箱内部的扭矩保护装置还包括变速器输入轴轴向固定结构6；所述电机支架2上设有第一端面21；所述变速器输入轴1的轴向位置通过所述电机支架2的所述第一端面21和所述变速器输入轴轴向固定结构6固定。为了缩短了轴向设计空间，所述变速器输入轴轴向固定结构6包括压板61和压板卡环62；所述压板61的一侧用于限定所述变速器输入轴1的轴向位置，所述压板61的另一侧通过花键连接的方式与所述电机支架2连接；所述压板卡环62用于限定所述压板61的轴向位置，值得说明的是，所述压板卡环62可以通过螺栓连接或其他等同方式的连接形式实现，此外，不考虑装配顺序的情况下，所述压板61可以通过所述固定件5或所述膜片弹簧4限定变速器输入轴1的轴向位置并取消所述压板卡环62。所述摩擦片组3包括至少一个摩擦片31和与所述摩擦片31配合的对偶钢片32；所述摩擦片31和所述对偶钢片32交替设置；所述摩擦片31用于接收所述变速器输入轴4传递的扭矩；所述对偶钢片32用于传递扭矩到所述电机支架2。可以通过调整至少一个对偶钢片32的厚度，使得该扭矩保护装置适用于不同的所述预设扭矩保护范围。值得说明的是，扭矩波动可能由所述对偶钢片32一侧产生，此时的扭矩方向同上述说明方向是相反的。所述变速器输入轴1包括固定连接的内轴结构11和外毂结构12；所述内轴结构11和所述外毂结构12通过焊接或铆接的方式连接；所述内轴结构11用于接收所述发动机传递的扭矩；所述外毂结构12用于输出扭矩到所述摩擦片组3。变速器输入轴1通过花键连接的方式分别与所述发动机和所述摩擦片组3连接，形成扭矩传递。为了避免可能出现的困油问题，所述电机支架2上与所述膜片弹簧4相对的位置设有用于使油排出的油孔22。为了实现过热保护，该扭矩保护装置还包括过热保护装置，所述过热保护装置用于在所述扭矩保护装置的温度高于预设温度时发出警告信号；具体地，可以通过 变速器程序设定过热保护，用于该扭矩保护装置失效可能带来的发动机无法直接驱动的风险，所述扭矩保护装置还可以通过下线检测，判定实际扭矩保护值是否和设计扭矩保护范围一致。
以上所述是本发明的实施例和优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也视为本发明的保护范围。

Claims (10)

  1. 一种用于混合动力变速箱内部的扭矩保护装置，其特征在于，包括：变速器输入轴、电机支架、摩擦片组、膜片弹簧和固定件；
    所述变速器输入轴的一端用于接收发动机传递的扭矩；所述变速器输入轴的另一端用于传递扭矩到所述摩擦片组的一端；所述电机支架用于传递扭矩到所述摩擦片组的另一端；
    所述膜片弹簧设置于所述摩擦片组和所述固定件之间；
    所述固定件的一端固定于所述电机支架上，所述固定件的另一端挤压所述膜片弹簧；
    当由所述变速器输入轴或由所述电机支架传递到所述摩擦片组的扭矩的波动范围超过预设扭矩波动范围时，所述摩擦片组在所述膜片弹簧的压力作用下内部摩擦发热以释放转换能量。
  2. 根据权利要求1所述的用于混合动力变速箱内部的扭矩保护装置，其特征在于，当由所述变速器输入轴或由所述电机支架传递到所述摩擦片组的扭矩的波动范围未超过预设扭矩波动范围时，所述变速器输入轴、所述摩擦片组和所述电机支架刚性连接。
  3. 根据权利要求1或2所述的用于混合动力变速箱内部的扭矩保护装置，其特征在于，还包括变速器输入轴轴向固定结构；
    所述电机支架上设有第一端面；
    所述变速器输入轴的轴向位置通过所述电机支架的所述第一端面和所述变速器输入轴轴向固定结构固定。
  4. 根据权利要求3所述的用于混合动力变速箱内部的扭矩保护装置，其特征在于，所述变速器输入轴轴向固定结构包括压板和压板卡环；
    所述压板的一侧用于限定所述变速器输入轴的轴向位置，所述压板的另一侧通过花键连接的方式与所述电机支架连接；
    所述压板卡环用于限定所述压板的轴向位置。
  5. 根据权利要求1或2所述的用于混合动力变速箱内部的扭矩保护装置，其特征在于，所述摩擦片组包括至少一个摩擦片和与所述摩擦片配合的对偶钢片；
    所述摩擦片和所述对偶钢片交替设置；
    所述摩擦片用于接收所述变速器输入轴传递的扭矩；
    所述对偶钢片用于传递扭矩到所述电机支架。
  6. 根据权利要求1或2所述的用于混合动力变速箱内部的扭矩保护装置，其特征在于，所述变速器输入轴包括固定连接的内轴结构和外毂结构；
    所述内轴结构和所述外毂结构通过焊接或铆接的方式连接；
    所述内轴结构用于接收所述发动机传递的扭矩；所述外毂结构用于输出扭矩到所述摩擦片组。
  7. 根据权利要求1或2所述的用于混合动力变速箱内部的扭矩保护装置，其特征在于，所述变速器输入轴通过花键连接的方式分别与所述发动机和所述摩擦片组连接，形成扭矩传递。
  8. 根据权利要求1或2所述的用于混合动力变速箱内部的扭矩保护装置，其特征在于，所述电机支架上与所述膜片弹簧相对的位置设有用于使油排出的油孔。
  9. 根据权利要求1或2所述的用于混合动力变速箱内部的扭矩保护装置，其特征在于，还包括过热保护装置，所述过热保护装置用于在所述扭矩保护装置的温度高于预设温度时发出警告信号。
  10. 一种变速箱，其特征在于，所述变速箱包括如权利要求1至9任一所述的用于混合动力变速箱内部的扭矩保护装置。
PCT/CN2020/141561 2020-12-30 2020-12-30 一种用于混合动力变速箱内部的扭矩保护装置及变速箱 Ceased WO2022141237A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2020/141561 WO2022141237A1 (zh) 2020-12-30 2020-12-30 一种用于混合动力变速箱内部的扭矩保护装置及变速箱
CN202080105952.3A CN116472414A (zh) 2020-12-30 2020-12-30 一种用于混合动力变速箱内部的扭矩保护装置及变速箱

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2020/141561 WO2022141237A1 (zh) 2020-12-30 2020-12-30 一种用于混合动力变速箱内部的扭矩保护装置及变速箱

Publications (1)

Publication Number Publication Date
WO2022141237A1 true WO2022141237A1 (zh) 2022-07-07

Family

ID=82259946

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/141561 Ceased WO2022141237A1 (zh) 2020-12-30 2020-12-30 一种用于混合动力变速箱内部的扭矩保护装置及变速箱

Country Status (2)

Country Link
CN (1) CN116472414A (zh)
WO (1) WO2022141237A1 (zh)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59151624A (ja) * 1983-02-19 1984-08-30 Honda Motor Co Ltd 車両の動力伝達系における捩り振動吸収装置
US20120083386A1 (en) * 2010-09-30 2012-04-05 Volkswagen Aktiengesellschaft Drive arrangement for a hybrid vehicle and method for operating an electric engine in a hybrid vehicle
CN106415056A (zh) * 2014-05-16 2017-02-15 舍弗勒技术股份两合公司 用于混合动力车辆的转矩传递设备
CN107054047A (zh) * 2017-05-12 2017-08-18 上海萨克斯动力总成部件系统有限公司 混合动力系统
DE102018131309A1 (de) * 2018-12-07 2020-06-10 Schaeffler Technologies AG & Co. KG Vorspannfederkraftreduzierender Drehmomentbegrenzer

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20130065419A (ko) * 2011-12-09 2013-06-19 현대자동차주식회사 하이브리드 차량의 토크 리미터
DE102014221196A1 (de) * 2013-11-13 2015-05-13 Schaeffler Technologies AG & Co. KG E-Clutch mit Modulationsfeder
DE102016217220A1 (de) * 2016-09-09 2018-03-15 Schaeffler Technologies AG & Co. KG Hybridmodul
DE102019102108A1 (de) * 2019-01-29 2020-07-30 Schaeffler Technologies AG & Co. KG Hybridmodul mit einem Abtriebsbauteil

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59151624A (ja) * 1983-02-19 1984-08-30 Honda Motor Co Ltd 車両の動力伝達系における捩り振動吸収装置
US20120083386A1 (en) * 2010-09-30 2012-04-05 Volkswagen Aktiengesellschaft Drive arrangement for a hybrid vehicle and method for operating an electric engine in a hybrid vehicle
CN106415056A (zh) * 2014-05-16 2017-02-15 舍弗勒技术股份两合公司 用于混合动力车辆的转矩传递设备
CN107054047A (zh) * 2017-05-12 2017-08-18 上海萨克斯动力总成部件系统有限公司 混合动力系统
DE102018131309A1 (de) * 2018-12-07 2020-06-10 Schaeffler Technologies AG & Co. KG Vorspannfederkraftreduzierender Drehmomentbegrenzer

Also Published As

Publication number Publication date
CN116472414A (zh) 2023-07-21

Similar Documents

Publication Publication Date Title
CN107709071B (zh) 用于机动车辆的驱动系的混合动力模块
CN102741580B (zh) 车辆用驱动装置
US10634196B2 (en) Double clutch apparatus for hybrid electric vehicle
CN105346372B (zh) 混合动力模块和具有它的汽车传动系
US10260610B2 (en) Torque converter for a vehicle
JP6123888B2 (ja) ダンパ装置
US20120083386A1 (en) Drive arrangement for a hybrid vehicle and method for operating an electric engine in a hybrid vehicle
CN107635812B (zh) 用于汽车的混合驱动模块
CN109910585A (zh) 混合动力模块与混合动力车辆
US20190128344A1 (en) Centrifugal clutch with friction-minimized coupling pin and drivetrain
CN103307133B (zh) 可液压操纵的离合器
US20210003178A1 (en) Clutch unit with torsional vibration damper as a clutch support, and hybrid module comprising clutch unit
KR102750545B1 (ko) 하이브리드 전기자동차용 클러치 장치
CN116472414A (zh) 一种用于混合动力变速箱内部的扭矩保护装置及变速箱
US7849985B2 (en) Pilot plate torque transmitting assembly for a torque converter
CN111907314B (zh) 用于机动车的混合动力模块以及驱动组件
KR20250126642A (ko) 하이브리드 차량용 동력전달장치
CN111565955A (zh) 用于机动车的混合动力模块和驱动装置
US20150083545A1 (en) Prime mover arrangement comprising a fluid-actuated clutch arrangement and a multi-disk clutch
CN107830077A (zh) 一种双离合器摩擦副系统
JP2011042207A (ja) 車両用駆動制御装置
CN211106930U (zh) 动力总成及具有其的车辆
CN212479953U (zh) 一种双输入轴膜簧并列式双离合器
CN219327745U (zh) 湿式双离合器
CN114174094B (zh) 混合动力系统用传动机构及混合动力系统

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20967578

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 202080105952.3

Country of ref document: CN

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20967578

Country of ref document: EP

Kind code of ref document: A1

122 Ep: pct application non-entry in european phase

Ref document number: 20967578

Country of ref document: EP

Kind code of ref document: A1

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DATED 18/01/2024)

122 Ep: pct application non-entry in european phase

Ref document number: 20967578

Country of ref document: EP

Kind code of ref document: A1