Normally closed electromagnetic toothed clutch and single-motor hybrid power system (3) _hebei hengjin transmission machinery Co., ltd.

Hebei Hengjin Transmission Machinery Co., Ltd.
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Normally closed electromagnetic toothed clutch and single-motor hybrid power system (3)

Release time: November 14, 2016

3c 示出了根据本发明一个实施例的一种单电机混合动力系统的C向剖视图,图3D示出了根据本发明一个实施例的一种单电机混合动力系统的D向剖视图。 FIG. 3A shows a cross-sectional view of a single-motor hybrid power system according to an embodiment of the present invention, FIG. 3B shows a cross-sectional view of a single-motor hybrid system according to an embodiment of the present invention, and FIG. 3c A cross-sectional view in the C direction of a single-motor hybrid system according to an embodiment of the present invention is shown, and FIG. 3D is a cross-sectional view in the D direction of a single-motor hybrid system according to an embodiment of the present invention. 以看出,本实施例中,动端面齿轮430和定端面齿轮440 的齿尖和齿槽均设置为知形,不仅有利于提高系统在对中不好时的抗干扰性能,还可以提升端面齿轮之间传递转矩的能力。 As can be seen from Figs. 3A-3D , in this embodiment, the tooth tips and coggings of the moving end gear 430 and the fixed end gear 440 are set to have a known shape, which is not only helpful to improve the anti-interference of the system when the alignment is not good. Performance can also improve the ability to transfer torque between face gears. 4 52 ,其一端嵌装于沉孔内,另一端固接在定位板451上 In addition, the axial end surface of the moving end face gear 430 has a plurality of counterbore holes, and the plurality of springs 452 of the elastic reset member 450 correspond to the plurality of counterbore holes one by one. For each spring 4 52 , one end thereof is embedded in the counterbore hole. The other end is fixed to the positioning plate 451 .
4 示出了根据本发明另一个实施例的一种单电机混合动力系统的示意图。 FIG. 4 shows a schematic diagram of a single-motor hybrid power system according to another embodiment of the present invention. As shown in FIG. 4, the system includes an engine 100, a first clutch 200, a motor 300, a second clutch 400, and a drive shaft 500 of an automobile, and further includes an energy storage device 600 and a motor driver 700. The motor driver 700 is installed between the motor 300 and the energy storage device 600, and is configured to provide the energy stored in the energy storage device 600 to the motor 300 to drive the motor 300 to rotate.
Based on the above mechanical structure, the single-motor hybrid power system provided by the present invention controls the disengagement or closing of the first clutch and the second clutch, so that the system can be operated in pure electric drive mode, braking energy recovery mode, parallel operation mode, Switching between parking and charging modes works as follows:
FIG. 5A shows a schematic diagram of a single-motor hybrid power system in a pure electric driving mode according to an embodiment of the present invention. As shown in FIG. 5A, when a pure electric drive mode is required, in a single-motor hybrid power system, the first clutch is disengaged, and the second clutch is closed. The vehicle controller controls the motor to operate in the drive mode, and the energy storage device (this (Indicated as "battery" in the embodiment) The motor is powered by a motor driver (not shown), which drives the motor to rotate, and the kinetic energy of the motor rotation is transmitted to the drive shaft of the car through the closed second clutch (represented in this embodiment) ("Main minus + wheels"), which drives the drive shaft of the car, which in turn drives the wheels of the car.
FIG. 5B shows a schematic diagram of a single-motor hybrid power system in a braking energy recovery mode according to an embodiment of the present invention. As shown in FIG. 5B, when there is a braking condition, in a single-motor hybrid power system, the first clutch is disengaged, the second clutch is closed, and the engine is turned off. The vehicle controller controls the motor to work in the energy recovery mode, and the motor generates The electric energy is stored in an energy storage device (indicated as a "battery" in this embodiment), and the battery power is increased.
FIG. 5c shows a schematic diagram of a single-motor hybrid power system in a parallel operation mode according to an embodiment of the present invention. 5C 所示,当需要较多的驱动能量时,在单电机混合动力系统中,闭合第一离合器和第二离合器,整车控制器分别控制发动机与电机工作在驱动状态下,一方面,发动机的动能通过闭合的第一离合器、电机的主轴和闭合的第二离合器传速给汽车的驱动轴(本实施例中表示为“主减+车轮”);另一方面,电机的动能通过闭合的第二离合器传速给汽车的驱动轴(本实施例中表示为“主减+车轮”);即发动机与单机共同驱使汽车的驱动轴转动,进而驱使汽车的车轮转动,该模式能够获得较高的经济性。 As shown in FIG. 5C , when more driving energy is needed, in a single-motor hybrid power system, the first clutch and the second clutch are closed, and the vehicle controller controls the engine and the motor to work in a driving state. On the one hand, The kinetic energy of the engine is transmitted to the drive shaft of the car through the closed first clutch, the main shaft of the motor, and the closed second clutch (in this embodiment, it is referred to as "main reduction + wheels"); on the other hand, the kinetic energy of the motor is closed by The second clutch transmits the speed to the drive shaft of the car (in this embodiment, it is referred to as "main reduction + wheel"); that is, the engine and the stand-alone drive the car ’s drive shaft to rotate, which in turn drives the car ’s wheels. High economy.
FIG. 5D shows a schematic diagram of a single-motor hybrid power system in a parking charging mode according to an embodiment of the present invention. 开第二离合器,整车控制器控制发动机恒转速 作,发动机的动能通过闭合的第一离合器传速给电机,驱使电机转动发电,电机的电能再传速给储能装置(本实施例中表示为“电池”),使得电池电量快速上 As shown in FIG. 5D, in the single-motor hybrid system, when the vehicle is stopped, the first clutch is closed and the second clutch is disengaged. The vehicle controller controls the engine to work at a constant speed . The kinetic energy of the engine is transmitted through the closed first clutch. To the motor, the motor is driven to generate electricity, and the electric energy of the motor is transmitted to the energy storage device (represented as a "battery" in this embodiment), so that the battery power increases rapidly .
,本发明提供的技术方案通过控制两个离合器的脱开或闭合,实现了单电机混合动力系统在不同工作模式之问的转换,其中,用于对电机和汽车的驱动轴进行机械连接的第二离合器是一 常闭式电磁齿嵌离合器,该离合器采用电磁线圈控制,并采用端面齿轮传递转矩,与传统的 式离合器相比,该离合器具有轴向尺寸短、重量轻、占用空间小、传通转矩大、动作迅速等特点;与传统的齿嵌离合器相比,该离合器的动端面齿轮、定端面齿轮分别直接与电机主轴和汽车的驱动轴相合,离合器整体分别与两端的电机主轴和汽车的驱动轴精密配合,高度集成;并且 殊设计的环形衔铁和环形电磁铁的局部形状能够似的吸合过程中电磁力近似与电流成正比,使得吸合过程柔和可控,进一步导致单电机混合动力系统的模式转换过程柔和 控,符合需求。 In summary , the technical solution provided by the present invention realizes the conversion of the single-motor hybrid power system between different working modes by controlling the disengagement or closing of the two clutches. Among them, it is used to mechanically connect the motor and the drive shaft of the automobile. The second clutch is a normally closed electromagnetic toothed clutch. The clutch is controlled by an electromagnetic coil and uses a face gear to transmit torque. Compared with a traditional dry clutch, the clutch has a short axial size, light weight, Compared with the traditional toothed clutch, the moving end gear and the fixed end gear of the clutch are directly combined with the motor shaft and the drive shaft of the car, respectively. The motor spindles at both ends and the drive shaft of the car are precisely matched and highly integrated; and the specially designed ring armature and the local shape of the ring electromagnet can be similar to the electromagnetic force in the suction process, which is proportional to the current, making the suction process soft and easy. Control, further leading to the mode conversion process of the single-motor hybrid power system is soft and controllable , which meets the needs.

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