CN111546867A - Special-shaped double-power full-time synchronous four-wheel drive power assembly - Google Patents

Special-shaped double-power full-time synchronous four-wheel drive power assembly Download PDF

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Publication number
CN111546867A
CN111546867A CN202010500935.1A CN202010500935A CN111546867A CN 111546867 A CN111546867 A CN 111546867A CN 202010500935 A CN202010500935 A CN 202010500935A CN 111546867 A CN111546867 A CN 111546867A
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China
Prior art keywords
drive
output shaft
motor
double
reducer
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CN202010500935.1A
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Chinese (zh)
Inventor
李非吾
赵航
谢斌
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Jiangsu Tuyue Special Vehicle Technology Co ltd
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Jiangsu Tuyue Special Vehicle Technology Co ltd
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    • 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
    • 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
    • B60K17/12—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of electric 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
    • B60K17/00—Arrangement or mounting of transmissions in vehicles
    • B60K17/34—Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles
    • B60K17/356—Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles having fluid or electric motor, for driving one or more wheels
    • 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 ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • 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 ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 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 ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 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 ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 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 ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • 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 ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 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
    • B60K6/52—Driving a plurality of drive axles, e.g. four-wheel drive
    • 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 ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • 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 ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 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 ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 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 ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 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
    • B60K2006/266—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 ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 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 with two coaxial motors or generators
    • 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

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Arrangement And Driving Of Transmission Devices (AREA)

Abstract

The invention discloses a special-shaped double-power full-time synchronous four-wheel drive power assembly which comprises a double-motor integrated mechanism, a front drive speed reducer, a front drive output shaft, a rear drive speed reducer and a rear drive output shaft, wherein the double-motor integrated mechanism is connected with the front drive speed reducer and the rear drive output shaft; the double-motor integrated mechanism comprises a double-motor shell, and a direct-current permanent magnet synchronous motor and an alternating-current asynchronous motor which are positioned in the double-motor shell; the direct-current permanent magnet synchronous motor and the alternating-current asynchronous motor are coaxially arranged and share the same motor shaft; an input shaft of the front-drive speed reducer is in transmission connection with one end of a motor shaft, and an output shaft of the front-drive speed reducer is in transmission connection with a front-drive output shaft; the input shaft of the rear-drive reducer is in transmission connection with the other end of the motor shaft, and the output shaft of the rear-drive reducer is in transmission connection with the rear-drive output shaft. The invention provides a special-shaped double-power full-time synchronous four-wheel drive power assembly which is used for providing electric power for pure electric or hybrid vehicles or equipment, can synchronously output power in two directions and meets the requirement of full-time four-wheel drive.

Description

Special-shaped double-power full-time synchronous four-wheel drive power assembly
Technical Field
The invention relates to the technical field of electric automobiles, in particular to a special-shaped double-power full-time synchronous four-wheel drive power assembly.
Background
China is the country with the largest quantity of automobiles in the world, and the basic national policy of a country for controlling fuel automobiles and vigorously developing new energy automobiles to protect the ecological environment of human beings becomes along with the enhancement of environmental awareness
At present, the existing pure electric vehicles at home and abroad only use a motor and an electric controller to replace an engine of a fuel oil vehicle, and use a battery to replace combustible fuel oil of the fuel oil vehicle.
When the vehicle enterprises are adapted to various complex road conditions of pure electric vehicles, designers commonly adopt a four-wheel drive output mode to realize that the electric vehicles have the function of full-time synchronous four-wheel drive like fuel vehicles.
The existing pure electric four-wheel drive system is generally realized by driving wheels by front and back double motors, and the electric four-wheel drive system mainly controls the torque distribution between the front axle and the rear axle and between the wheels through an ECU (electronic control Unit), and is the performance determined by software. The program simulation control of software has great difficulty, so that a correct decision is difficult to be made aiming at the working condition of the vehicle, and even the problem of front-back driving synchronization of complex road conditions is difficult to solve. Under the complex road conditions of vehicle starting, heavy load, climbing, high speed, ice and snow road surface, muddy road and the like, the vehicle is difficult to be effectively controlled.
Therefore, how to provide a driving power assembly capable of synchronously outputting power in two directions and satisfying full-time four-wheel drive is a problem that needs to be solved by those skilled in the art.
Disclosure of Invention
In view of the above, the invention provides a special-shaped double-power full-time synchronous four-wheel drive power assembly, which is used for a pure electric or hybrid electric vehicle or equipment to provide electric power, can synchronously output power in two directions, and meets the requirement of full-time four-wheel drive driving.
In order to achieve the purpose, the invention adopts the following technical scheme:
a special-shaped double-power full-time synchronous four-wheel drive power assembly comprises a double-motor integrated mechanism, a front drive speed reducer, a front drive output shaft, a rear drive speed reducer and a rear drive output shaft;
the double-motor integrated mechanism comprises a double-motor shell, and a direct-current permanent magnet synchronous motor and an alternating-current asynchronous motor which are positioned in the double-motor shell; the direct-current permanent magnet synchronous motor and the alternating-current asynchronous motor are coaxially arranged and share the same motor shaft;
an input shaft of the front-drive speed reducer is in transmission connection with one end of the motor shaft, and an output shaft of the front-drive speed reducer is in transmission connection with the front-drive output shaft, so that the rotating speed is reduced, and the torque is improved; the input shaft of the rear-drive reducer is in transmission connection with the other end of the motor shaft, and the output shaft of the rear-drive reducer is in transmission connection with the rear-drive output shaft, so that the rotating speed is reduced, and the torque is improved.
Preferably, in the above special-shaped dual-power full-time synchronous four-wheel drive power assembly, the output power, the rotation speed and the torque of the dc permanent magnet synchronous motor and the ac asynchronous motor are the same.
Preferably, in the above-mentioned heterotypic double-power full-time synchronization four-wheel drive power assembly, one side of forerunner's reduction gear with one side fixed connection of bi-motor shell, the opposite side of forerunner's reduction gear is provided with the forerunner's end cover, set up the front on the forerunner's end cover and drive the output shaft hole, front drive output shaft one end with the output shaft transmission of forerunner's reduction gear is connected, and the other end stretches out to outside the forerunner's end cover through the forerunner's output shaft hole.
Preferably, in the above special-shaped dual-power full-time synchronous four-wheel drive power assembly, one side of the rear-drive reducer is fixedly connected to the other side of the dual-motor shell, a rear-drive end cover is arranged on the other side of the rear-drive reducer, a rear-drive output shaft hole is formed in the rear-drive end cover, one end of the rear-drive output shaft is in transmission connection with an output shaft of the rear-drive reducer, and the other end of the rear-drive output shaft extends out of the rear-drive end cover through the rear-drive output shaft hole.
Preferably, in the above special-shaped dual-power full-time synchronous four-wheel drive power assembly, bearings are disposed on both the front drive output shaft hole and the rear drive output shaft hole.
Preferably, in the special-shaped double-power full-time synchronous four-wheel drive power assembly, an input shaft of the front-drive speed reducer is in transmission connection with one end of the motor shaft through a coupler, and an output shaft of the front-drive speed reducer is in transmission connection with the front-drive output shaft through a coupler; the input shaft of the rear-drive reducer is in transmission connection with the other end of the motor shaft through a coupler, and the output shaft of the rear-drive reducer is in transmission connection with the rear-drive output shaft through a coupler.
Preferably, in the above-mentioned heterotypic double-power full-time synchronization four-wheel drive power assembly, the forerunner end cover, the forerunner reduction gear, the dual-motor integrated mechanism, the rear-drive reduction gear, the rear-drive end cover are connected in series in turn and installed as an organic whole, form seamless close-fitting whole machine integrated structure.
According to the technical scheme, compared with the prior art, the invention discloses a special-shaped double-power full-time synchronous four-wheel drive power assembly, which is characterized in that two direct-current permanent magnet synchronous motors and two alternating-current asynchronous motors with the same rotating speed and the same power are combined into a double-motor integrated mechanism. The two driving motors in the double-motor integrated mechanism have the functions and the functions of being used as driving devices of a front driving output shaft and a rear driving output shaft respectively. The double-motor integrated mechanism skillfully enables the two driving motors to coaxially output the same power, the same rotating speed and the same torque, realizes synchronous bidirectional output power, and meets the requirement of full-time four-wheel drive driving.
The invention adopts the innovative design and application of the double-motor working mode, and effectively solves the problem that the pure electric vehicle is difficult to effectively control under the complex road conditions of vehicle starting, heavy load, climbing, high speed, ice and snow road surface, muddy road and the like.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic diagram of the structure of the present invention;
fig. 2 is a schematic diagram of the application of the invention to an automobile.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the invention discloses a special-shaped double-power full-time synchronous four-wheel drive power assembly which is used for providing electric power for pure electric or hybrid vehicles or equipment, can synchronously output power in two directions and meets the requirement of full-time four-wheel drive.
The invention discloses a special-shaped double-power full-time synchronous four-wheel drive power assembly which comprises a double-motor integrated mechanism 1, a front drive speed reducer 2, a front drive output shaft 3, a rear drive speed reducer 4 and a rear drive output shaft 5;
the double-motor integrated mechanism 1 comprises a double-motor shell 11, and a direct-current permanent magnet synchronous motor 12 and an alternating-current asynchronous motor 13 which are positioned in the double-motor shell 11; the direct current permanent magnet synchronous motor 12 and the alternating current asynchronous motor 13 are coaxially arranged and share the same motor shaft 14;
an input shaft of the front-drive speed reducer 2 is in transmission connection with one end of a motor shaft 14, an output shaft of the front-drive speed reducer 2 is in transmission connection with a front-drive output shaft 3, the rotating speed is reduced, and the torque is improved; the input shaft of the rear-drive reducer 4 is in transmission connection with the other end of the motor shaft 14, and the output shaft of the rear-drive reducer 4 is in transmission connection with the rear-drive output shaft 5, so that the rotating speed is reduced, and the torque is improved.
In order to further optimize the technical scheme, the output power, the rotating speed and the torque of the direct current permanent magnet synchronous motor 12 and the alternating current asynchronous motor 13 are the same.
In order to further optimize the technical scheme, one side of the front-drive speed reducer 2 is fixedly connected with one side of the double-motor shell 11, the other side of the front-drive speed reducer 2 is provided with a front-drive end cover 6, a front-drive output shaft 3 hole is formed in the front-drive end cover 6, one end of the front-drive output shaft 3 is in transmission connection with an output shaft of the front-drive speed reducer 2, and the other end of the front-drive output shaft extends out of the front-drive end cover 6 through.
In order to further optimize the technical scheme, one side of the rear-drive speed reducer 4 is fixedly connected with the other side of the double-motor shell 11, a rear-drive end cover 7 is arranged on the other side of the rear-drive speed reducer 4, a rear-drive output shaft 5 hole is formed in the rear-drive end cover 7, one end of the rear-drive output shaft 5 is in transmission connection with an output shaft of the rear-drive speed reducer 4, and the other end of the rear-drive output shaft 5 extends out of the rear-drive end cover 7 through the rear-drive.
In order to further optimize the technical scheme, bearings are arranged on the holes of the front driving output shaft 3 and the holes of the rear driving output shaft 5.
In order to further optimize the technical scheme, an input shaft of the front-drive speed reducer 2 is in transmission connection with one end of a motor shaft 14 through a coupler, and an output shaft of the front-drive speed reducer 2 is in transmission connection with a front-drive output shaft 3 through a coupler; the input shaft of the rear-drive reducer 4 is in transmission connection with the other end of the motor shaft 14 through a coupler, and the output shaft of the rear-drive reducer 4 is in transmission connection with the rear-drive output shaft 5 through a coupler.
In order to further optimize the technical scheme, the front-drive end cover 6, the front-drive speed reducer 2, the double-motor integrated mechanism 1, the rear-drive speed reducer 4 and the rear-drive end cover 7 are sequentially connected in series and integrally installed, and a seamless and tightly-attached whole machine integrated structure is formed.
The working principle is as follows:
the front drive output shaft 3 is drivingly connected to the front drive wheels of the vehicle and the rear drive output shaft 5 is drivingly connected to the rear drive wheels of the vehicle. The power output mode of the double-motor integrated mechanism 1 formed by combining the alternating current asynchronous motor 13 and the direct current permanent magnet synchronous motor 12 synchronously outputs power to the front-drive speed reducer 2 and the rear-drive speed reducer 4, and then the power is distributed to the front-drive output shaft 3 and the rear-drive output shaft 5, so that the full-time synchronous four-drive power function of the vehicle is realized.
The direct current permanent magnet synchronous motor 12 and the alternating current asynchronous motor 13 are coaxially arranged and share the same motor shaft 14, so that the rotating speeds of the two driving motors are consistent, and the rotating speed and the power of the power assembly are synchronous.
The front drive reducer 2 and the rear drive reducer 4 have the function of reducing the high-rotating-speed low-torque power of the alternating current asynchronous motor 13 and the direct current permanent magnet synchronous motor 12 into low-rotating-speed high-torque power through the speed ratio of the reducers, and then the low-rotating-speed high-torque power is transmitted to the front drive output shaft 3 and the rear drive output shaft 5 to drive the front drive wheels and the rear drive wheels of the vehicle.
The AC asynchronous motor 13 is used as a power-assisted motor, and when the vehicle is in mud, ice and snow, a steep slope and overload, the AC asynchronous motor 13 is started to instantaneously increase the power of four-wheel drive.
The dc permanent magnet synchronous motor 12 is used as a main driving motor and is used as a common power of a vehicle under normal road conditions.
The alternating current asynchronous motor 13 is adopted mainly because two driving motors in the double-motor integrated mechanism 1 are of a motor rotor coaxial structure, if permanent magnet motors are adopted, the magnetic resistance of the motors exists under the static non-electrifying condition, and the static non-magnetic alternating current asynchronous motor 13 is matched with the direct current permanent magnet synchronous motor 12, so that the power loss can be reduced.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (7)

1. A heterotype double-power full-time synchronous four-wheel drive power assembly is characterized by comprising a double-motor integrated mechanism, a front drive speed reducer, a front drive output shaft, a rear drive speed reducer and a rear drive output shaft;
the double-motor integrated mechanism comprises a double-motor shell, and a direct-current permanent magnet synchronous motor and an alternating-current asynchronous motor which are positioned in the double-motor shell; the direct-current permanent magnet synchronous motor and the alternating-current asynchronous motor are coaxially arranged and share the same motor shaft;
an input shaft of the front-drive speed reducer is in transmission connection with one end of the motor shaft, and an output shaft of the front-drive speed reducer is in transmission connection with the front-drive output shaft; the input shaft of the rear-drive reducer is in transmission connection with the other end of the motor shaft, and the output shaft of the rear-drive reducer is in transmission connection with the rear-drive output shaft.
2. The hybrid full-time synchronous four-wheel drive power assembly as claimed in claim 1, wherein the output power, the rotating speed and the torque of the direct current permanent magnet synchronous motor and the alternating current asynchronous motor are the same.
3. The special-shaped dual-power full-time synchronous four-wheel drive power assembly as claimed in claim 1, wherein one side of the front-drive reducer is fixedly connected with one side of the dual-motor shell, the other side of the front-drive reducer is provided with a front-drive end cover, a front-drive output shaft hole is formed in the front-drive end cover, one end of the front-drive output shaft is in transmission connection with an output shaft of the front-drive reducer, and the other end of the front-drive output shaft extends out of the front-drive end cover through the front-drive output shaft hole.
4. The special-shaped double-power full-time synchronous four-wheel drive power assembly as claimed in claim 3, wherein one side of the rear-drive reducer is fixedly connected with the other side of the double-motor shell, a rear-drive end cover is arranged on the other side of the rear-drive reducer, a rear-drive output shaft hole is formed in the rear-drive end cover, one end of the rear-drive output shaft is in transmission connection with an output shaft of the rear-drive reducer, and the other end of the rear-drive output shaft extends out of the rear-drive end cover through the rear-drive output shaft hole.
5. The hybrid double-power full-time synchronous four-wheel drive power assembly as claimed in claim 4, wherein bearings are arranged on the front drive output shaft hole and the rear drive output shaft hole.
6. The special-shaped double-power full-time synchronous four-wheel drive power assembly as claimed in claim 1, wherein an input shaft of the front-drive speed reducer is in transmission connection with one end of the motor shaft through a coupler, and an output shaft of the front-drive speed reducer is in transmission connection with the front-drive output shaft through a coupler; the input shaft of the rear-drive reducer is in transmission connection with the other end of the motor shaft through a coupler, and the output shaft of the rear-drive reducer is in transmission connection with the rear-drive output shaft through a coupler.
7. The special-shaped double-power full-time synchronous four-wheel-drive power assembly as claimed in claim 4, wherein the front-drive end cover, the front-drive reducer, the double-motor integrated mechanism, the rear-drive reducer and the rear-drive end cover are sequentially mounted in series to form a whole integrated structure which is seamless and tightly attached.
CN202010500935.1A 2020-06-04 2020-06-04 Special-shaped double-power full-time synchronous four-wheel drive power assembly Pending CN111546867A (en)

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JPH0614405A (en) * 1992-06-26 1994-01-21 Fuji Electric Co Ltd Electric system for electric motor vehicle
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CN103459895A (en) * 2011-04-15 2013-12-18 丰田自动车株式会社 Power transmission device
CN106515406A (en) * 2016-11-18 2017-03-22 精进电动科技股份有限公司 Coaxial multi-motor driving system and vehicle comprising same
CN109278550A (en) * 2018-11-23 2019-01-29 宁波华表机械制造有限公司 A kind of pure electric Time Division Synchronous four-driving-force mechanism
CN109278551A (en) * 2018-12-04 2019-01-29 山东奥德斯工业股份有限公司 A kind of pure full-time synchronous four-driving-force mechanism of electricity

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5229676A (en) * 1989-05-01 1993-07-20 Louris Bood Electric machine with self-contained spare bearing
JPH0614405A (en) * 1992-06-26 1994-01-21 Fuji Electric Co Ltd Electric system for electric motor vehicle
CN201553013U (en) * 2009-10-22 2010-08-18 浙江吉利汽车研究院有限公司 Driving system of rear wheel drive type hybrid power sedan
CN103459895A (en) * 2011-04-15 2013-12-18 丰田自动车株式会社 Power transmission device
CN106515406A (en) * 2016-11-18 2017-03-22 精进电动科技股份有限公司 Coaxial multi-motor driving system and vehicle comprising same
CN109278550A (en) * 2018-11-23 2019-01-29 宁波华表机械制造有限公司 A kind of pure electric Time Division Synchronous four-driving-force mechanism
CN109278551A (en) * 2018-12-04 2019-01-29 山东奥德斯工业股份有限公司 A kind of pure full-time synchronous four-driving-force mechanism of electricity

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