CN106515407A - Electric vehicle drive axle driven by two motors for speed regulation - Google Patents
Electric vehicle drive axle driven by two motors for speed regulation Download PDFInfo
- Publication number
- CN106515407A CN106515407A CN201611025000.2A CN201611025000A CN106515407A CN 106515407 A CN106515407 A CN 106515407A CN 201611025000 A CN201611025000 A CN 201611025000A CN 106515407 A CN106515407 A CN 106515407A
- Authority
- CN
- China
- Prior art keywords
- speed
- motor
- regulating
- main
- resolver
- 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
Links
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
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K1/02—Arrangement or mounting of electrical propulsion units comprising more than one electric motor
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
Abstract
本发明公开了一种双电机驱动调速的电动车驱动桥，两个车轮之间依次同轴连接有主旋变、主电机、行星轮系、差速器、调速旋变，差速器外同轴套接有调速电机，主电机与其中一个车轮通过左桥壳连接，调速电机的两端分别与行星轮系和调速旋变连接，调速旋变与另一个车轮通过右桥壳连接；其中，行星轮系包括中心轮、四个行星轮、内齿圈和行星架；行星架将四个行星轮均布在中心轮的外侧和内齿圈的内侧，行星架与主电机连接，中心轮与差速器连接，内齿圈与调速电机连接。本发明电动车驱动桥，实现两个电机的分时工作或者按照不同组合形式的扭矩输出，采用最优的控制策略，以最小的能耗适应多种复杂工况的行驶工况，大幅提高电动汽车的能量利用率。
The invention discloses a dual-motor driven speed-regulating electric vehicle drive axle. A main resolver, a main motor, a planetary gear train, a differential, a speed-regulating resolver, and a differential are coaxially connected in sequence between two wheels. The outer coaxial socket is connected with a speed-regulating motor. The main motor is connected to one of the wheels through the left axle housing. Axle housing connection; among them, the planetary gear train includes a sun gear, four planetary gears, an inner ring gear and a planetary carrier; the planetary carrier distributes the four planetary gears on the outside of the sun The motor is connected, the center wheel is connected with the differential, and the inner ring gear is connected with the speed regulating motor. The drive axle of the electric vehicle of the present invention realizes the time-sharing work of two motors or the torque output according to different combinations, adopts the optimal control strategy, adapts to various complex driving conditions with the minimum energy consumption, and greatly improves the driving efficiency of the electric vehicle. Energy efficiency of the car.
Description
技术领域technical field
本发明属于汽车工程技术领域，具体涉及一种双电机驱动调速的电动车驱动桥。The invention belongs to the technical field of automobile engineering, and in particular relates to an electric vehicle driving axle driven by double motors and speed-regulated.
背景技术Background technique
大力发展油电混合、油气混合、纯电动汽车等，尤其是大型纯电动公交、观光电动车辆，对于大幅改善城市交通拥堵、减少汽车排放、改善环境卫生、降低噪音等方面都具有非常突出的优势，已经成为我国新能源汽车发展的战略重要目标之一。Vigorously develop oil-electric hybrid, oil-gas hybrid, pure electric vehicles, etc., especially large-scale pure electric buses and sightseeing electric vehicles, which have very prominent advantages in greatly improving urban traffic congestion, reducing vehicle emissions, improving environmental sanitation, and reducing noise. , has become one of the strategically important goals for the development of new energy vehicles in my country.
与内燃发动机汽车相比，电动汽车长期受限于续驶里程短、充电缓慢等缺陷的困扰，但是它所具有的零排放、电能来源广泛、驱动功率高、加速性能好等突出优势，尤其是随着全球石油资源供给的日趋紧张和温室效应日益严重，电动汽车迎来了快速发展期。Compared with internal combustion engine vehicles, electric vehicles have long been plagued by defects such as short driving range and slow charging, but they have outstanding advantages such as zero emissions, wide sources of electric energy, high driving power, and good acceleration performance. With the increasingly tight supply of global oil resources and the increasingly serious greenhouse effect, electric vehicles have ushered in a period of rapid development.
目前关于电动汽车的研究主要集中在新电池材料、新电池类型、新的电池充放电控制技术、电机技术和电机的控制技术、能量管理与控制、电动汽车底盘等多方面。实现电动汽车驱动电机、驱动控制与电动汽车底盘技术的完美结合，也成为现代电动汽车发展的重要目标。At present, the research on electric vehicles mainly focuses on new battery materials, new battery types, new battery charge and discharge control technology, motor technology and motor control technology, energy management and control, electric vehicle chassis and many other aspects. Realizing the perfect combination of electric vehicle drive motor, drive control and electric vehicle chassis technology has also become an important goal for the development of modern electric vehicles.
在电动汽车底盘中需要解决的主要问题是动力的供给、传递、变速、差速和换向等，在目前处于研究和成熟应用的几种电动汽车驱动方式包括：一是轮毂电机驱动方式，在广泛使用的两轮电动摩托车的轮毂电机方式，在动力供给和传递方面实现了真正的“零传动”，对于传动控制和整车的动力布置具有非常明显的优势，在两轮驱动甚至是多轮驱动的电动汽车中借鉴此轮毂电机技术已经成为现代电动汽车的一个重要研究方向，同时又会产生在不同驱动车轮之间的同步或者差速等问题的困扰。The main problems that need to be solved in the electric vehicle chassis are power supply, transmission, speed change, differential speed and reversing, etc. Several electric vehicle drive methods that are currently being researched and maturely applied include: one is the hub motor drive method, in The hub motor mode of the widely used two-wheeled electric motorcycle has realized the real "zero transmission" in terms of power supply and transmission, and has very obvious advantages in transmission control and power arrangement of the whole vehicle. It has become an important research direction of modern electric vehicles to learn from this in-wheel motor technology in wheel-driven electric vehicles. At the same time, it will cause problems such as synchronization or differential speed between different driving wheels.
二是采用单电机驱动，经主减速器变速、换向，再经差速器、半轴等传动至不同驱动车轮的电动汽车驱动方式，这也是目前微型、小型电动汽车的常用解决方案，实现起来比较方便。但是也存在驱动电机的功率大、能耗高、整车的续驶里程短等缺陷。The second is to use a single motor drive, through the main reducer to change the speed and direction, and then drive the electric vehicle to different driving wheels through the differential, half shaft, etc. This is also a common solution for miniature and small electric vehicles at present. It's more convenient. However, there are also defects such as high power of the driving motor, high energy consumption, and short driving range of the vehicle.
发明内容Contents of the invention
本发明的目的是提供一种双电机驱动调速的电动车驱动桥，以最小的能耗适应多种复杂工况的行驶工况，大幅提高电动汽车的能量利用率。The object of the present invention is to provide a dual-motor driven speed-regulating electric vehicle drive axle, which can adapt to various complex driving conditions with the minimum energy consumption and greatly improve the energy utilization rate of the electric vehicle.
本发明所采用的技术方案是，一种双电机驱动调速的电动车驱动桥，两个车轮之间依次同轴连接有主旋变、主电机、行星轮系、差速器、调速旋变，差速器外同轴套接有调速电机，主电机与其中一个车轮通过左桥壳连接，调速电机的两端分别与行星轮系和调速旋变连接，调速旋变与另一个车轮通过右桥壳连接；其中，行星轮系包括中心轮、四个行星轮、内齿圈和行星架；行星架将四个行星轮均布在中心轮的外侧和内齿圈的内侧，行星架与主电机连接，中心轮与差速器连接，内齿圈与调速电机连接。The technical solution adopted in the present invention is an electric vehicle drive axle driven by dual motors and speed regulation. The two wheels are sequentially connected coaxially with a main resolver, a main motor, a planetary gear train, a differential, and a speed regulating rotary shaft. There is a speed-regulating motor coaxially socketed outside the differential, the main motor is connected to one of the wheels through the left axle housing, and the two ends of the speed-regulating motor are respectively connected to the planetary gear train and the speed-regulating resolver. The other wheel is connected through the right axle housing; among them, the planetary gear train includes a sun gear, four planet gears, an inner ring gear and a planet carrier; the planet carrier evenly distributes the four planet gears on the outside of the sun gear and the inside of the ring gear , the planet carrier is connected with the main motor, the center wheel is connected with the differential, and the inner ring gear is connected with the speed regulating motor.
本发明的特点还在于：The present invention is also characterized in that:
主电机包括主电机轴，主电机转子通过键周向固定在主电机轴上，主电机轴通过轴承分别连接有主电机左盖和主电机右盖，主电机左盖和主电机右盖通过螺栓连接在主电机壳的两端，主电机定子通过键固定在主电机壳的内孔中，主电机轴的一端布置行星架，主电机轴与行星架固定连接，主电机轴的另一端与主旋变连接。The main motor includes the main motor shaft, the rotor of the main motor is circumferentially fixed on the main motor shaft through the key, the main motor shaft is respectively connected with the main motor left cover and the main motor right cover through the bearing, and the main motor left cover and the main motor right cover are connected by bolts Connected to both ends of the main motor casing, the main motor stator is fixed in the inner hole of the main motor casing through a key, one end of the main motor shaft is arranged with a planet carrier, the main motor shaft is fixedly connected with the planet carrier, and the other end of the main motor shaft Connect with the main resolver.
差速器包括差速器壳，差速器壳分为左右两部分，差速器壳的左部分与中心轮连接，差速器壳的右部分通过轴承与右桥壳连接，左右两部分的差速器壳之间封装有十字轴，十字轴的四个分叉上各装有一个锥齿轮，两个半轴齿轮左右相对安装在四个锥齿轮的两端，其中一个半轴齿轮通过穿过主电机轴的左半轴与其中一个车轮连接，另一个半轴齿轮通过右半轴与另一个车轮连接。The differential includes a differential case, which is divided into left and right parts. The left part of the differential case is connected to the center wheel, and the right part of the differential case is connected to the right axle case through bearings. A cross shaft is sealed between the differential housings, and each of the four forks of the cross shaft is equipped with a bevel gear. The left half shaft passing through the main motor shaft is connected with one of the wheels, and the other half shaft gear is connected with the other wheel through the right half shaft.
调速电机包括调速电机转子和调速电机定子，调速电机转子的左端与内齿圈连接，调速电机定子、调速电机转子的右端与调速旋变连接。The speed regulating motor includes a speed regulating motor rotor and a speed regulating motor stator, the left end of the speed regulating motor rotor is connected with the inner ring gear, and the speed regulating motor stator and the right end of the speed regulating motor rotor are connected with the speed regulating resolver.
调速旋变包括调速旋变转子和调速旋变定子，调速旋变转子与调速电机转子连接，调速旋变定子、调速电机定子均与右桥壳连接。The speed-regulating resolver includes a speed-regulating resolver rotor and a speed-regulating resolver stator, the speed-regulating resolver rotor is connected with the speed-regulating motor rotor, and the speed-regulating resolver stator and the speed-regulating motor stator are both connected with the right axle housing.
主旋变包括主旋变转子和主旋变定子，主旋变转子和主电机转子同轴与主电机轴连接，主旋变定子与主电机左盖连接。The main resolver includes a main resolver rotor and a main resolver stator, the main resolver rotor and the main motor rotor are coaxially connected to the main motor shaft, and the main resolver stator is connected to the left cover of the main motor.
本发明的有益效果是：本发明一种双电机驱动调速的电动车驱动桥，通过电机伺服驱动控制器的不同控制策略实现主电机和调速电机的联合运转或者分时运转，通过行星轮系将主电机、调速电机和差速器连接在一起，实现两个设计功率较小的电机进行分时功率输出或组合功率输出，以适应不同的行驶工况，可以最大限度的降低能耗、减少发热损耗；通过两个电机的调速、换向、制动实现电动汽车的加速、倒车、前进和制动等功能；本发明充分利用行星轮系实现了主电机、调速电机和差速器传递和减速变速功能，将两个电机和差速器的直连直驱，去除了联轴器、传动轴等连接元件，减少了壳体的数量、体积，减少了轴承、螺栓和密封件的数量，降低了动力传递的功率损耗，简化了传动结构。The beneficial effects of the present invention are as follows: a double-motor driven speed-regulating electric vehicle drive axle of the present invention realizes the joint operation or time-sharing operation of the main motor and the speed-regulating motor through different control strategies of the motor servo drive controller, The system connects the main motor, the speed-regulating motor and the differential together to realize the time-sharing power output or combined power output of two motors with smaller design power, so as to adapt to different driving conditions and reduce energy consumption to the greatest extent. , reduce heat loss; through the speed regulation, reversing and braking of the two motors, the functions of acceleration, reversing, forward and braking of the electric vehicle are realized; the present invention makes full use of the planetary gear train to realize the main The function of transmission and deceleration of the transmission, the direct connection and direct drive of the two motors and the differential, the removal of connecting elements such as couplings and drive shafts, the reduction of the number and volume of the housing, and the reduction of bearings, bolts and seals The number of parts reduces the power loss of power transmission and simplifies the transmission structure.
附图说明Description of drawings
图1是本发明一种双电机驱动调速的电动车驱动桥的结构示意图；Fig. 1 is the structural representation of a kind of double-motor driven speed-regulating electric vehicle driving axle of the present invention;
图2是本发明一种双电机驱动调速的工作原理图。Fig. 2 is a working principle diagram of a dual-motor drive speed regulation in the present invention.
图中，1.主电机，1-1.主电机定子，1-2.主电机转子，1-3.主电机壳，1-4.主电机左盖，1-5.主电机右盖，1-6.主电机轴，In the figure, 1. Main motor, 1-1. Main motor stator, 1-2. Main motor rotor, 1-3. Main motor casing, 1-4. Main motor left cover, 1-5. Main motor right cover , 1-6. Main motor shaft,
2.行星轮系，2-1.中心轮，2-2.行星架，2-3.行星轮，2-4.内齿圈，2. Planetary gear train, 2-1. Center wheel, 2-2. Planet carrier, 2-3. Planetary gear, 2-4. Ring gear,
3.差速器，3-1.十字轴，3-2.锥齿轮，3-3.差速器壳，3-4.半轴齿轮，3. Differential, 3-1. Cross shaft, 3-2. Bevel gear, 3-3. Differential case, 3-4. Half shaft gear,
4.主旋变，4-1.主旋变转子，4-2.主旋变定子，4. Main resolver, 4-1. Main resolver rotor, 4-2. Main resolver stator,
5.调速电机，5-1.调速电机转子，5-2.调速电机定子，5. Speed regulating motor, 5-1. Speed regulating motor rotor, 5-2. Speed regulating motor stator,
6.调速旋变，6-1.调速旋变定子，6-2.调速旋变转子，6. Speed-regulating resolver, 6-1. Speed-regulating resolver stator, 6-2. Speed-regulating resolver rotor,
7.左桥壳，8.左半轴，9.车轮，10.右桥壳，11.右半轴。7. Left axle housing, 8. Left half shaft, 9. Wheels, 10. Right axle housing, 11. Right half shaft.
具体实施方式detailed description
下面结合附图和具体实施方式对本发明进行详细说明。The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
本发明一种双电机驱动调速的电动车驱动桥，结构如图1、2所示，两个车轮9之间依次同轴连接有主旋变4、主电机1、行星轮系2、差速器3、调速旋变6，差速器3外同轴套接有调速电机5，主电机1与其中一个车轮9通过左桥壳7连接，调速电机5的两端分别与行星轮系2和调速旋变6连接，调速旋变6与另一个车轮9通过右桥壳10连接。The present invention is an electric vehicle driving axle driven by double motors with speed regulation. The structure is shown in Fig. The speed device 3, the speed-regulating resolver 6, the speed-regulating motor 5 is coaxially sleeved outside the differential 3, the main motor 1 and one of the wheels 9 are connected through the left axle housing 7, and the two ends of the speed-regulating motor 5 are respectively connected to the planetary The wheel train 2 is connected with the speed-regulating resolver 6 , and the speed-regulating resolver 6 is connected with another wheel 9 through the right axle housing 10 .
主电机1和调速电机5同轴并列布置，且均采用内转子式电机；主旋变4和调速电机5布置在主电机1的两侧，调速旋变6布置在调速电机5的右侧，差速器3内嵌在调速电机5的内部。The main motor 1 and the speed-regulating motor 5 are coaxially arranged side by side, and both use inner rotor motors; the main resolver 4 and the speed-regulating motor 5 are arranged on both sides of the main motor 1, and the speed-regulating resolver 6 is arranged on the speed-regulating motor 5 On the right side, the differential gear 3 is embedded inside the speed regulating motor 5 .
其中，行星轮系2包括中心轮2-1、四个行星轮2-3、内齿圈2-4和行星架2-2；行星架2-2将四个行星轮2-3均布在中心轮2-1的外侧和内齿圈2-4的内侧，行星架2-2与主电机1连接，中心轮2-1与差速器3连接，内齿圈2-4与调速电机5连接。Wherein, the planetary gear train 2 comprises a center wheel 2-1, four planetary gears 2-3, an inner ring gear 2-4 and a planetary carrier 2-2; the planetary carrier 2-2 distributes the four planetary gears 2-3 on The outer side of the center wheel 2-1 and the inner side of the ring gear 2-4, the planet carrier 2-2 is connected with the main motor 1, the center wheel 2-1 is connected with the differential 3, and the inner ring gear 2-4 is connected with the speed regulating motor 5 connections.
主电机1包括主电机轴1-6，主电机转子1-2通过键周向固定在主电机轴1-6上，主电机轴1-6通过轴承分别连接有主电机左盖1-4和主电机右盖1-5，主电机左盖1-4和主电机右盖1-5通过螺栓连接在主电机壳1-3的两端，主电机定子1-1通过键固定在主电机壳1-3的内孔中，主电机轴1-6的一端布置行星架2-2，主电机轴1-6与行星架2-2固定连接，主电机轴1-6的另一端与主旋变4连接。The main motor 1 includes a main motor shaft 1-6, the main motor rotor 1-2 is circumferentially fixed on the main motor shaft 1-6 through a key, and the main motor shaft 1-6 is respectively connected with the main motor left cover 1-4 and the main motor shaft through bearings. The right cover 1-5 of the main motor, the left cover 1-4 of the main motor and the right cover 1-5 of the main motor are connected to both ends of the main motor casing 1-3 by bolts, and the stator 1-1 of the main motor is fixed on the main motor by keys. In the inner hole of the casing 1-3, a planet carrier 2-2 is arranged at one end of the main motor shaft 1-6, the main motor shaft 1-6 is fixedly connected with the planet carrier 2-2, and the other end of the main motor shaft 1-6 is connected to the Main resolver 4 connections.
差速器3包括差速器壳3-3，差速器壳3-3分为左右两部分，差速器壳3-3的左部分与中心轮2-1连接，差速器壳3-3的右部分通过轴承与右桥壳10连接，左右两部分的差速器壳3-3之间封装有十字轴3-1，十字轴3-1的四个分叉上各装有一个锥齿轮3-2，两个半轴齿轮3-4左右相对安装在四个锥齿轮3-2的两端，其中一个半轴齿轮3-4通过穿过主电机轴1-6的左半轴8与其中一个车轮9连接，另一个半轴齿轮3-4通过右半轴11与另一个车轮9连接，即两个车轮9分别经过左半轴8和右半轴11与差速器3的两个半轴齿轮3-4相连。The differential 3 includes a differential case 3-3, the differential case 3-3 is divided into left and right parts, the left part of the differential case 3-3 is connected with the center wheel 2-1, and the differential case 3- The right part of 3 is connected with the right axle housing 10 through a bearing, and a cross shaft 3-1 is packaged between the differential case 3-3 of the left and right parts, and a cone is installed on each of the four forks of the cross shaft 3-1. Gear 3-2, two side shaft gears 3-4 are relatively installed on the two ends of four bevel gears 3-2 left and right, wherein one side shaft gear 3-4 passes through the left side shaft 8 of the main motor shaft 1-6 Connected with one of the wheels 9, the other side gear 3-4 is connected with the other wheel 9 through the right side shaft 11, that is, the two wheels 9 pass through the two sides of the left side shaft 8 and the right side shaft 11 and the differential 3 respectively. The side gears are connected 3-4.
调速电机5包括调速电机转子5-1和调速电机定子5-2，调速电机转子5-1的左端与内齿圈2-4连接，调速电机定子5-2、调速电机转子5-1的右端与调速旋变6连接。Speed regulating motor 5 comprises speed regulating motor rotor 5-1 and speed regulating motor stator 5-2, the left end of speed regulating motor rotor 5-1 is connected with ring gear 2-4, speed regulating motor stator 5-2, speed regulating motor The right end of the rotor 5-1 is connected with the speed-regulating resolver 6.
调速旋变6包括调速旋变转子6-2和调速旋变定子6-1，调速旋变转子6-2与调速电机转子5-1连接，调速旋变定子6-1、调速电机定子5-2均与右桥壳10连接。The speed-regulating resolver 6 includes a speed-regulating resolver rotor 6-2 and a speed-regulating resolver stator 6-1, the speed-regulating resolver rotor 6-2 is connected with the speed-regulating motor rotor 5-1, and the speed-regulating resolver stator 6-1 , speed-regulating motor stator 5-2 are all connected with right axle housing 10.
主旋变4包括主旋变转子4-1和主旋变定子4-2，主旋变转子4-1和主电机转子1-2同轴与主电机轴1-6连接，主旋变定子4-2与主电机左盖1-4连接。The main resolver 4 includes the main resolver rotor 4-1 and the main resolver stator 4-2, the main resolver rotor 4-1 and the main motor rotor 1-2 are coaxially connected with the main motor shaft 1-6, and the main resolver stator 4-2 is connected with main motor left cover 1-4.
主电机定子1-1、主旋变定子4-1、调速电机定子5-2、调速旋变定子6-2通过左桥壳7和右桥壳10与车架相连，相对车架固定。The main motor stator 1-1, the main resolver stator 4-1, the speed-regulating motor stator 5-2, and the speed-regulating resolver stator 6-2 are connected to the vehicle frame through the left axle housing 7 and the right axle housing 10, and are fixed relative to the vehicle frame .
本发明一种双电机驱动调速的电动车驱动桥中，In the electric vehicle drive axle driven by double motors and speed regulation of the present invention,
主旋变4和主电机1组成伺服主电机系统，通过伺服驱动控制器实现调速和换向；调速旋变6和调速电机5组成伺服调速电机系统，同样通过伺服驱动控制器实现调速和换向。The main resolver 4 and the main motor 1 form the main servo motor system, and the speed regulation and direction change are realized through the servo drive controller; the speed-regulating resolver 6 and the speed-regulating motor 5 form the servo speed-regulating motor system, which is also realized through the servo drive controller Speed regulation and reversing.
主电机1的功率较大，按照电动汽车正常使用时的功率需求设计；调速电机5的功率较小，主电机1和调速电机5的功率之和按照电动汽车在爬坡、加速、拖车等工况使用功率设计。The power of the main motor 1 is relatively large, which is designed according to the power demand of the electric vehicle during normal use; Use power design for other working conditions.
本发明一种双电机驱动调速的电动车驱动桥的工作原理是：利用行星轮系2将功率不同的主电机1和调速电机5联合起来作为驱动电机；主电机1的动力直接输出至行星轮系2中的行星架2-2，调速电机5的动力输出至行星轮系2的内齿圈2-4，行星轮系2中的中心轮2-1直接与差速器3相连；主电机1的功率较大，用于满足正常行驶过程中的功率需求；调速电机5功率较小，作为整车的功率储备，与主电机1同时工作时可以适应整车加速、爬坡、拖车等复杂工况。The working principle of a dual-motor-driven speed-regulating electric vehicle drive axle of the present invention is: use the planetary gear train 2 to combine the main motor 1 and the speed-regulating motor 5 with different powers as a driving motor; the power of the main motor 1 is directly output to The planet carrier 2-2 in the planetary gear system 2, the power output of the speed regulating motor 5 is sent to the ring gear 2-4 of the planetary gear system 2, and the sun gear 2-1 in the planetary gear system 2 is directly connected to the differential 3 The power of the main motor 1 is relatively large, which is used to meet the power demand in the normal driving process; the power of the speed regulating motor 5 is small, as the power reserve of the whole vehicle, it can adapt to the acceleration and climbing of the whole vehicle when working with the main motor 1 at the same time , trailers and other complex working conditions.
其中主旋变4与主电机1形成的伺服电机系统，与调速旋变6和调速电机5形成的伺服调速电机系统，都可以通过驱动控制器实现主电机1和调速电机5的启停、调速和正反转，而主电机1和调速电机5的协同工作设置专用的控制系统和控制策略来实现。Among them, the servo motor system formed by the main resolver 4 and the main motor 1, and the servo speed-regulating motor system formed by the speed-regulating resolver 6 and the speed-regulating motor 5 can realize the connection between the main motor 1 and the speed-regulating motor 5 through the drive controller. Start and stop, speed regulation and forward and reverse, and the cooperative work of the main motor 1 and the speed regulation motor 5 is realized by setting a dedicated control system and control strategy.
本发明一种双电机驱动调速的电动车驱动桥的工作过程是：The working process of a kind of double-motor driven speed-regulating electric vehicle driving axle of the present invention is:
主电机转子1-2通过主电机轴1-6与行星轮系2的行星架2-2直接相连，主电机1直接通过行星架2-2输出动力；调速电机5的调速电机转子5-1与行星轮系2的内齿圈2-4直接相连，调速电机5直接通过内齿圈2-4输出动力；差速器壳3-3直接与行星轮系2的中心轮2-1连接，中心轮2-1将动力输入至差速器3；差速器3通过两个半轴齿轮3-4将动力传输至左半轴8和右半轴11，驱动车轮9转动。The main motor rotor 1-2 is directly connected to the planetary carrier 2-2 of the planetary gear train 2 through the main motor shaft 1-6, and the main motor 1 directly outputs power through the planetary carrier 2-2; the speed-regulating motor rotor 5 of the speed-regulating motor 5 -1 is directly connected to the ring gear 2-4 of the planetary gear system 2, and the speed regulating motor 5 directly outputs power through the ring gear 2-4; the differential case 3-3 is directly connected to the center gear 2-4 of the planetary gear system 2 1 connection, the center wheel 2-1 inputs power to the differential 3; the differential 3 transmits the power to the left half shaft 8 and the right half shaft 11 through two side gears 3-4 to drive the wheels 9 to rotate.
当电动汽车启动时，主电机1加电不转动，则行星轮系2的行星架2-2固定不动，调速电机5加电启动，调速电机转子5-1带动内齿圈2-4转动，动力经内齿圈2-4、行星轮2-3、中心轮2-1、差速器壳3-3输入至差速器3，差速器3通过两个半轴齿轮3-4将动力传输至左半轴8和右半轴11，驱动车轮9转动，电动汽车启动，启动之后的电动汽车在正常行驶之前一直由调速电机5进行驱动。When the electric vehicle is started, the main motor 1 is powered on and does not rotate, then the planet carrier 2-2 of the planetary gear train 2 is fixed, the speed regulating motor 5 is powered on to start, and the speed regulating motor rotor 5-1 drives the inner ring gear 2- 4 rotation, the power is input to the differential 3 through the inner ring gear 2-4, the planetary gear 2-3, the center wheel 2-1, and the differential case 3-3, and the differential 3 passes through two side gears 3- 4. The power is transmitted to the left half shaft 8 and the right half shaft 11 to drive the wheels 9 to rotate, and the electric vehicle starts, and the electric vehicle after starting is always driven by the speed regulating motor 5 before normal driving.
当电动汽车正常行驶时，调速电机5加电不转动，则行星轮系2的内齿圈2-4固定不动；主电机1加电运行，主电机转子1-2通过主电机轴1-6带动行星架2-2转动，动力经过行星架2-2、行星轮2-3、中心轮2-1、差速器壳3-3将动力输入至差速器3，差速器3通过两个半轴齿轮3-4将动力传输至左半轴8和右半轴11，从而驱动车轮9转动。When the electric vehicle is running normally, the speed regulating motor 5 is energized and does not rotate, then the inner ring gear 2-4 of the planetary gear train 2 is fixed; -6 drives the planetary carrier 2-2 to rotate, and the power is input to the differential device 3 through the planetary carrier 2-2, the planetary gear 2-3, the center wheel 2-1, and the differential case 3-3, and the differential device 3 The power is transmitted to the left half shaft 8 and the right half shaft 11 through two side gears 3-4, thereby driving the wheels 9 to rotate.
当电动汽车加速或者爬坡时，主电机1和调速电机5同时加电运转，且主电机1和调速电机5的转动方向相同；主电机1的动力从行星轮系2的行星架2-2输入，调速电机5的动力从行星轮系2的内齿圈2-4输入，两路动力叠加后经中心轮2-1、差速器壳3-3将动力输入至差速器3，差速器3通过两个半轴齿轮3-4将动力传输至左半轴8和右半轴11，从而驱动车轮9转动。When the electric vehicle accelerates or climbs a slope, the main motor 1 and the speed-regulating motor 5 are energized and run at the same time, and the rotation directions of the main motor 1 and the speed-regulating motor 5 are the same; -2 input, the power of the speed-regulating motor 5 is input from the inner ring gear 2-4 of the planetary gear train 2, and after the two-way power is superimposed, the power is input to the differential through the center wheel 2-1 and the differential case 3-3 3. The differential 3 transmits power to the left half shaft 8 and the right half shaft 11 through two side gears 3-4, thereby driving the wheels 9 to rotate.
当电动汽车制动或者短时停车时，采用调速电机5加电运转，且主电机1断电被拖动空转，此时调速电机5的输出动力经行星轮系2的内齿圈2-4、行星轮2-3、行星架2-2带动主电机1空转，差速器3无法获得动力而驱动汽车运行；电动汽车若要再次起步运行，只需给主电机1供电制动，此时行星轮系2的行星架2-2固定，则又开始了电动汽车的启动过程。When the electric vehicle brakes or stops for a short time, the speed-regulating motor 5 is used to run with power, and the main motor 1 is powered off and dragged to idle. At this time, the output power of the speed-regulating motor 5 passes through the inner ring gear 2 of the planetary gear train 2 -4. The planetary gear 2-3 and the planet carrier 2-2 drive the main motor 1 to idle, and the differential 3 cannot obtain power to drive the vehicle; Now the planet carrier 2-2 of the planetary gear train 2 is fixed, and the starting process of the electric vehicle has started again.
本发明一种双电机驱动调速的电动车驱动桥的突出特点：The salient features of a double-motor-driven speed-regulating electric vehicle drive axle of the present invention:
一、主电机1和调速电机5的功率之和与单台电机驱动电动汽车中的电机功率相近，但是两台电机可以实现分时工作，因此在节能方面具有明显的优势。1. The sum of the power of the main motor 1 and the speed-regulating motor 5 is similar to that of a single-motor-driven electric vehicle, but the two motors can work in time-sharing, so they have obvious advantages in terms of energy saving.
二、两台电机不同动力输出组合对于适应不同的行驶工况提供了可能性，大幅提高了汽车动力性能；同时可以大幅减少电机频繁启停，延长电机的使用寿命。2. The different power output combinations of the two motors provide the possibility to adapt to different driving conditions and greatly improve the vehicle's power performance; at the same time, it can greatly reduce the frequent start and stop of the motor and prolong the service life of the motor.
三、对于主电机1和调速电机5中至少保留一台伺服电机时也能具有相近的调速和节能效果。3. When at least one servo motor is reserved among the main motor 1 and the speed-regulating motor 5, similar speed-regulating and energy-saving effects can be obtained.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611025000.2A CN106515407A (en) | 2016-11-16 | 2016-11-16 | Electric vehicle drive axle driven by two motors for speed regulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611025000.2A CN106515407A (en) | 2016-11-16 | 2016-11-16 | Electric vehicle drive axle driven by two motors for speed regulation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106515407A true CN106515407A (en) | 2017-03-22 |
Family
ID=58353119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611025000.2A Pending CN106515407A (en) | 2016-11-16 | 2016-11-16 | Electric vehicle drive axle driven by two motors for speed regulation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106515407A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107972461A (en) * | 2017-12-29 | 2018-05-01 | 聊城大学 | A kind of pure electric automobile bi-motor coupler |
| CN108980283A (en) * | 2018-08-13 | 2018-12-11 | 大连碧蓝节能环保科技有限公司 | Bore tooth mechanical differential |
| CN109624681A (en) * | 2018-12-28 | 2019-04-16 | 合肥工业大学 | A kind of double-motor power transmission system for electric car |
| CN109733209A (en) * | 2019-02-14 | 2019-05-10 | 大连碧蓝节能环保科技有限公司 | Automobile-used bipyramid tooth differential deceleration system control methods |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101602326A (en) * | 2009-07-06 | 2009-12-16 | 奇瑞汽车股份有限公司 | A kind of differential retarder |
| CN201501282U (en) * | 2009-09-30 | 2010-06-09 | 上海中上汽车科技有限公司 | A split type turbocharged reducer differential electric drive machine |
| CN104325883A (en) * | 2014-11-20 | 2015-02-04 | 奇瑞汽车股份有限公司 | Power assembly of full electric vehicle electric drive system |
| CN105034782A (en) * | 2015-09-10 | 2015-11-11 | 福建万润新能源科技有限公司 | Electric automobile multi-mode power system |
| CN105128700A (en) * | 2015-09-10 | 2015-12-09 | 福建工程学院 | Double-power system of electric vehicle and control method |
| CN105216653A (en) * | 2015-10-30 | 2016-01-06 | 福建万润新能源科技有限公司 | A kind of double-motor multi-mode power system of adjustable speed and driving method |
-
2016
- 2016-11-16 CN CN201611025000.2A patent/CN106515407A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101602326A (en) * | 2009-07-06 | 2009-12-16 | 奇瑞汽车股份有限公司 | A kind of differential retarder |
| CN201501282U (en) * | 2009-09-30 | 2010-06-09 | 上海中上汽车科技有限公司 | A split type turbocharged reducer differential electric drive machine |
| CN104325883A (en) * | 2014-11-20 | 2015-02-04 | 奇瑞汽车股份有限公司 | Power assembly of full electric vehicle electric drive system |
| CN105034782A (en) * | 2015-09-10 | 2015-11-11 | 福建万润新能源科技有限公司 | Electric automobile multi-mode power system |
| CN105128700A (en) * | 2015-09-10 | 2015-12-09 | 福建工程学院 | Double-power system of electric vehicle and control method |
| CN105216653A (en) * | 2015-10-30 | 2016-01-06 | 福建万润新能源科技有限公司 | A kind of double-motor multi-mode power system of adjustable speed and driving method |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107972461A (en) * | 2017-12-29 | 2018-05-01 | 聊城大学 | A kind of pure electric automobile bi-motor coupler |
| CN108980283A (en) * | 2018-08-13 | 2018-12-11 | 大连碧蓝节能环保科技有限公司 | Bore tooth mechanical differential |
| CN108980283B (en) * | 2018-08-13 | 2019-11-05 | 大连碧蓝节能环保科技有限公司 | Bore tooth mechanical differential |
| CN109624681A (en) * | 2018-12-28 | 2019-04-16 | 合肥工业大学 | A kind of double-motor power transmission system for electric car |
| CN109624681B (en) * | 2018-12-28 | 2021-02-05 | 合肥工业大学 | Double-motor power transmission system for electric automobile |
| CN109733209A (en) * | 2019-02-14 | 2019-05-10 | 大连碧蓝节能环保科技有限公司 | Automobile-used bipyramid tooth differential deceleration system control methods |
| CN109733209B (en) * | 2019-02-14 | 2020-06-26 | 大连碧蓝节能环保科技有限公司 | Control method of differential speed reduction system of vehicle double-bevel gear |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106965659B (en) | A Dual-Motor Coupled Drive Axle with Torque Orientation Distribution | |
| CN207809033U (en) | Hybrid electric drive system and vehicle | |
| CN206111987U (en) | Planetary electronic differential mechanism of double clutch | |
| CN102514479B (en) | Range extended electric vehicle power system | |
| CN207809032U (en) | Hybrid electric drive system and vehicle | |
| CN105599584A (en) | Multi-motor-light hybrid two-axle driving coupling plug-in hybrid power system | |
| CN107599823A (en) | Differential multimodal fusion power car drive system | |
| CN109606023A (en) | A dual-motor hybrid drive axle and its control method | |
| CN105291812B (en) | The hybrid electric vehicle power drive system of the double clutch double-rotor machines of integrated form | |
| CN102673365A (en) | Hybrid power electric automobile driving system by utilizing synchronous belt transmission | |
| CN106740021A (en) | A kind of electric motor car driving bridge of dual-motor combination | |
| CN107599819B (en) | Power transmission system of plug-in hybrid power special-purpose automobile | |
| CN110525194A (en) | Hybrid vehicle power-driven system and its control method | |
| CN108790776A (en) | A kind of mixed power automobile driving device | |
| CN106994893A (en) | Double planet wheel rows of mixing multimodal fusion power car drive system | |
| CN106427533A (en) | Electric vehicle driving axle and driving and speed-regulating method thereof | |
| CN109203966A (en) | The lateral gear drive system and its vehicle of hybrid power | |
| CN202357849U (en) | Hybrid driving device | |
| CN106515407A (en) | Electric vehicle drive axle driven by two motors for speed regulation | |
| CN106195193B (en) | A kind of planetary electric differential mechanism of double clutch | |
| CN206086349U (en) | Coaxial coupling drive system of two epicyclie gear bi -motors | |
| CN203142374U (en) | Transmission of HEV (hybrid electric vehicle) | |
| CN207809039U (en) | Hybrid electric drive system and vehicle | |
| CN110001377A (en) | A kind of military distributed drive system of offroad vehicle mechanical electronic hydraulic coupling | |
| WO2020211519A1 (en) | Planetary row power assembly of double-motor hybrid engine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |