CN107933299A - Electric automobile high-speed motor drive system integrated system - Google Patents
Electric automobile high-speed motor drive system integrated system Download PDFInfo
- Publication number
- CN107933299A CN107933299A CN201711134424.7A CN201711134424A CN107933299A CN 107933299 A CN107933299 A CN 107933299A CN 201711134424 A CN201711134424 A CN 201711134424A CN 107933299 A CN107933299 A CN 107933299A
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- CN
- China
- Prior art keywords
- speed
- motor
- electric automobile
- drive system
- motor drive
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- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- 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
- B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
- B60K17/06—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of change-speed gearing
Abstract
The present invention provides a kind of electric automobile high-speed motor drive system integrated system, including high-speed asynchronous motor and primary gear speed reducing device and gear-shift mechanism in same integrated housing；Wherein, the output shaft of high-speed asynchronous motor and the input shaft of primary gear speed reducing device are linked together by spline；The input shaft of primary gear speed reducing device is by bearings in the integrated housing；The high-speed asynchronous motor is externally provided with motor field frame, and motor field frame is detachably connected with the integrated housing.The present invention has abandoned the clutch of orthodox car tradition, motor power output, and retarder deceleration torque, speed changer is shifted gears, and improves transmission efficiency；Motor, primary gear speed reducing device and gear-shift mechanism closely became one, and make structure simpler, and power transmits even closer, mechanical efficiency higher, have enough portabilities on the basis of dynamic property requirement is met, and can reduce noise.
Description
Technical field
The invention belongs to drive system of electric motor vehicle field, and in particular to a kind of electric automobile high-speed motor drive system integrates
Integral system.
Background technology
Electric automobile includes pure electric automobile, mixed power electric car and fuel cell electric vehicle.It drives motor
Frequently with AC induction motor and AC magnetoelectric machine.Electric automobile (BEV) refers to, using vehicle power supply as power, be driven with motor
Wheels travel, meets road traffic, the vehicle of security legislation requirements.Since effect on environment is smaller with respect to orthodox car,
Its prospect is had an optimistic view of extensively, but current techniques are still immature.Operation principle：-- electric current -- electric governor -- is electronic for storage battery
Machine -- power drive system -- drives running car.
Centralized driving formula electric automobile is similar to the driving structure arrangement of traditional combustion engine automobile, with motor and phase
Part replacement internal combustion engine is closed, by mechanical driving devices such as speed changer, retarders, by motor output torque, is delivered to left and right
Wheel drives running car.Technology maturation, safe and reliable but heavier there are volume is realized in the operation of centralized driving formula electric automobile,
The deficiencies of efficiency is not relatively high.
In order to solve the deficiency of above-mentioned traditional centralized driving formula electric automobile, it is that this patent will to seek a preferable scheme
Solve the problems, such as.We will ensure motor driven systems lightweight as much as possible.It is in addition, dedicated electronic as electric automobile
Machine, is limited by installation dimension condition, and require it is small, it is efficient.
The content of the invention
The technical problem to be solved in the present invention is：A kind of integrated system of electric automobile high-speed motor drive system is provided
System, can have enough portabilities on the basis of dynamic property requirement is met, and can reduce noise.
The technical solution taken by the invention to solve the above technical problem is：A kind of electric automobile high-speed electric expreess locomotive drivetrain
System integrated system, it is characterised in that：It includes high-speed asynchronous motor and the level-one tooth in same integrated housing
Wheel decelerator and gear-shift mechanism；Wherein, the output shaft of high-speed asynchronous motor and the input shaft of primary gear speed reducing device pass through
Spline links together；The input shaft of primary gear speed reducing device is by bearings in the integrated housing；The height
Speed asynchronous motor is externally provided with motor field frame, and motor field frame is detachably connected with the integrated housing；The high speed
Motor is asynchronous motor or permanent magnet synchronous motor of the rotating speed more than 10,000 turns.
By such scheme, the high-speed motor is AC induction motor or AC magnetoelectric machine.
By such scheme, connected between the motor field frame and integrated housing by fixing bolt.
By such scheme, the gear-shift mechanism is the intermediate shaft type speed changer of 2-3 forward gear.
By such scheme, the integrated housing is integrally cast.
By such scheme, the spline uses grease lubrication.
By such scheme, the front end of the motor output shaft is equipped with the bearing being connected with motor field frame, before described
Hold for away from spline one end, so as to ensure the concentricity of axis connection.
By such scheme, retarder input end bearing is double ditch ball axis, can bear high speed load.
Beneficial effects of the present invention are：The present invention has abandoned the clutch of orthodox car tradition, and high-speed motor is efficient
Power output, retarder deceleration torque, speed changer is shifted gears, so as to improve transmission efficiency；On this basis, motor is defeated
Shaft with and the input shaft of gear reduction unit linked together by spline, primary gear speed reducing device and gear-shift mechanism integrate
Into same housing, three closely becames one, and makes structure simpler, and power transmits even closer, mechanical efficiency higher, at the same time
Volume is also reduced, it is easier for installation, there are enough portabilities on the basis of dynamic property requirement is met, and can reduce and make an uproar
Sound.
Brief description of the drawings
Fig. 1 is high-speed motor drive system schematic diagram.
Fig. 2 is the concrete structure diagram of high-speed motor drive system.
Fig. 3 is conventional motors torque characteristic figure.
Fig. 4 is high-speed electric expreess locomotive torque characteristic figure.
Fig. 5 is high-speed electric expreess locomotive acceleration and deceleration device torque characteristic figure.
Fig. 6 keeps off torque characteristic figure for high-speed motor drive system two.
Fig. 7 is one grade of torque characteristic figure of high-speed motor drive system.
In figure：1- high-speed asynchronous motors, 2- primary gear speed reducing devices, 3- gear-shift mechanisms, 4- motor field frames, 5- electricity
Machine output shaft rear end bearing, 6- speed reducer housings, 7- gearbox cases, 8- primary gear speed reducing device input shafts, 9- retarders are defeated
Enter end bearing before axis, 10- oil sealings, 11- splines, 12- motor output shafts, end bearing before 13- motor output shafts.
Embodiment
With reference to instantiation and attached drawing, the present invention will be further described.
The present invention provides a kind of electric automobile high-speed motor drive system integrated system, as depicted in figs. 1 and 2,
Primary gear speed reducing device 2 and gear-shift mechanism 3 including high-speed asynchronous motor 1 and in same integrated housing；Wherein, it is high
The output shaft 12 of speed asynchronous motor is linked together with primary gear speed reducing device input shaft 8 by spline 11；One-stage gear subtracts
Fast device input shaft 8 is supported on by end bearing before reducer input shaft 9 in the integrated housing；Described is high-speed asynchronous electronic
Machine 1 is externally provided with motor field frame 4, and motor field frame 4 is detachably connected with the integrated housing；Described is high-speed asynchronous electronic
Machine 1 is asynchronous motor of the rotating speed more than 10,000 turns.
In the present embodiment, the high-speed asynchronous motor 1 is AC induction motor or AC magnetoelectric machine.
The integrated housing can be analyzed to 7 two parts of speed reducer housing 6 and gearbox case in figure, using monoblock cast
Mode integral structure is made, connected between the motor field frame 4 and integrated housing by fixing bolt, easy at a high speed
The dismounting of asynchronous motor 1 and primary gear speed reducing device 2.
Gear-shift mechanism 3 is the intermediate shaft type speed changer of 2-3 forward gear.The spline 11 uses grease lubrication.
6 front port of speed reducer housing sets oil sealing 10.The front end of the motor output shaft 12 is equipped with to be connected with motor field frame 4
End bearing 13 before the motor output shaft connect, ensures its axis connection concentricity.The rear end of motor output shaft 12 is equipped with and motor case
The motor output shaft rear end bearing 5 that body 4 connects.
End bearing 9 before end bearing 13, reducer input shaft before the motor output shaft rear end bearing 5, motor output shaft
It is the double ditch ball bearings that can bear high speed load redesigned.
Power matching calculates
(1) max. speed
uaThe max. speed of running car, the rotating speed of n motor, i0The gearratio of retarder, igThe gearratio of speed changer, r
Vehicle wheel roll radius.The required maximum speed n of motor is determined according to the max. speed of electric automobile expected designmax。
(2) max. climb slope
Tt=Ttqigi0ηT(2),
TtTorque on wheel, TtqThe torque of motor, ηTThe mechanical efficiency of transmission.
FtIt is expressed as the driving force of driving wheels travel.
The climbing capacity of general so-called automobile, refers to that automobile overcomes f in good road surfacewAir drag and FfRolling resistance
Surplus energy afterwards all for overcoming grade resistance when the value of slope that can get over.
The ruling grade value of general automobile is obtained using the equation formula of automobile in automobile theory percent 30 or so
According to the max. climb slope value of expected design can according to needed for being obtained three formulas and four formulas motor maximum torque value.
(3) peak acceleration
Since the numerical value of acceleration is not easy to measure, the acceleration time is commonly used in practice to show the acceleration capacity of automobile.
Minimum stabilized speed accelerates to certain distance at one grade or the required time shows the acceleration capacity of automobile.
Obtained by running car equation
Torque request according to expected from 5,6 formulas can calculate electric automobile needed for the acceleration time, draws turning for motor
Square.
The motor torque capacity calculated according to above-mentioned max. climb slope, while to meet that the requirement of max. speed calculates most
Big rotating speed, and motor will accomplish that lightweight reduces size at the same time, so the rotating speed of motor will improve, carry level-one accordingly
Retarder meets the requirement of max. speed come the increment that slows down.Therefore, the emphasis of high-speed motor drive system is in motor
Rotating speed improve, high-speed electric expreess locomotive, retarder, the integrated design of speed changer.
In order to meet requirement that motor size diminishes, but the required work(of automobile each travel speed during traveling
Rate is constant, so the output power of motor is constant, according to formula
P- motor power (output)s, T- motor output torques, N- motors speed.
Motor size reduces, and the torque of motor reduces, so the rotating speed of motor must increase to meet output power
It is constant, so motor output end needs acceleration and deceleration device to slow down.The rotating speed of conventional motors is generally certain rotating speed, if Fig. 3 is to turn
Square schematic diagram.In order to meet the reduction of motor size, high-speed electric expreess locomotive rotating speed doubles, if Fig. 4 is torque characteristic figure, torque compared with
Conventional motors reduce one times, and torque request during in order to meet electric automobile low speed, acceleration and deceleration device deceleration increment, turns as shown in Figure 5
Square performance plot.In order to there are more gear ratio, two grades of speed changer is added, torque is maximum at one grade, at this time electronic
The stand-by power of machine is maximum, accelerates grade climbing performance best, as shown in Figure 6,7 torque characteristic figure.
Analyzed and verified according to above-mentioned theory, illustrate the present invention by high-speed asynchronous motor, primary gear speed reducing device and gear
Speed changer is integrated, and the machine components of whole system are combined closely, simple in structure, and dynamic efficiency is high.The present invention abandons
The clutch of orthodox car tradition, motor power output, retarder deceleration torque, speed changer are shifted gears, are so driven
Efficiency effectively improves.In the case where motor speed improves, add the deceleration torque of retarder, so reduced motor size,
Meet the requirement of torque again in the case where meeting rotating speed.This integrated system can ensure the base of properties
On plinth, size and weight are alleviated, while mechanical efficiency can be improved after integrating, reduces noise.
Above example is merely to illustrate the design philosophy and feature of the present invention, and its object is to make technology in the art
Personnel can understand present disclosure and implement according to this, and protection scope of the present invention is not limited to above-described embodiment.So it is all according to
The equivalent variations made according to disclosed principle, mentality of designing or modification, within protection scope of the present invention.
Claims (8)
- A kind of 1. electric automobile high-speed motor drive system integrated system, it is characterised in that：It includes high-speed asynchronous electricity Motivation or high-speed permanent magnetic synchronous motor and primary gear speed reducing device and gear-shift mechanism in same integrated housing；Its In, the input shaft of the output shaft and primary gear speed reducing device of high-speed asynchronous motor is linked together by spline；One-stage gear The input shaft of retarder is by retarder input terminal bearings in the integrated housing；The high-speed asynchronous motor Motor field frame is externally provided with, motor field frame is detachably connected with the integrated housing；The high-speed asynchronous motor is Asynchronous motor or permanent magnet synchronous motor of the rotating speed more than 10,000 turns.
- 2. electric automobile high-speed motor drive system integrated system according to claim 1, it is characterised in that：Institute The high-speed asynchronous motor stated is AC induction motor or AC magnetoelectric machine.
- 3. electric automobile high-speed motor drive system integrated system according to claim 1, it is characterised in that：Institute Connected between the motor field frame and integrated housing stated by fixing bolt.
- 4. electric automobile high-speed motor drive system integrated system according to claim 1, it is characterised in that：Institute The gear-shift mechanism stated is the intermediate shaft type speed changer of 2-3 forward gear.
- 5. electric automobile high-speed motor drive system integrated system according to claim 1, it is characterised in that：Institute The integrated housing stated is integrally cast.
- 6. electric automobile high-speed motor drive system integrated system according to claim 1, it is characterised in that：Institute The spline stated uses grease lubrication.
- 7. electric automobile high-speed motor drive system integrated system according to claim 1, it is characterised in that：Institute The front end for the motor output shaft stated is equipped with the bearing being connected with motor field frame, and the front end is one end away from spline.
- 8. electric automobile high-speed motor drive system integrated system according to claim 1, it is characterised in that：Institute The retarder input end bearing stated is double ditch ball bearings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711134424.7A CN107933299A (en) | 2017-11-16 | 2017-11-16 | Electric automobile high-speed motor drive system integrated system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711134424.7A CN107933299A (en) | 2017-11-16 | 2017-11-16 | Electric automobile high-speed motor drive system integrated system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107933299A true CN107933299A (en) | 2018-04-20 |
Family
ID=61932493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711134424.7A Pending CN107933299A (en) | 2017-11-16 | 2017-11-16 | Electric automobile high-speed motor drive system integrated system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109955702A (en) * | 2019-03-25 | 2019-07-02 | 重庆长安新能源汽车科技有限公司 | A kind of vehicle and its integrated power drive system assembly |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH079859A (en) * | 1993-02-18 | 1995-01-13 | Steyr Daimler Puch Ag | Axle driving device for electric motorcar |
| CN201390131Y (en) * | 2009-02-25 | 2010-01-27 | 长春思达汽车技术咨询有限公司 | Integrated drive and transmission device of electric automobiles |
| CN205573595U (en) * | 2016-04-01 | 2016-09-14 | 韶关市焬控传动科技有限公司 | Novel shaft type electricelectric motor car is with two grades of AMT gearboxes in middle of three |
| CN106080155A (en) * | 2016-06-28 | 2016-11-09 | 泰州市海博汽车科技有限公司 | A kind of optimization integrated system driving motor and automatic transmission and shift control method |
-
2017
- 2017-11-16 CN CN201711134424.7A patent/CN107933299A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH079859A (en) * | 1993-02-18 | 1995-01-13 | Steyr Daimler Puch Ag | Axle driving device for electric motorcar |
| CN201390131Y (en) * | 2009-02-25 | 2010-01-27 | 长春思达汽车技术咨询有限公司 | Integrated drive and transmission device of electric automobiles |
| CN205573595U (en) * | 2016-04-01 | 2016-09-14 | 韶关市焬控传动科技有限公司 | Novel shaft type electricelectric motor car is with two grades of AMT gearboxes in middle of three |
| CN106080155A (en) * | 2016-06-28 | 2016-11-09 | 泰州市海博汽车科技有限公司 | A kind of optimization integrated system driving motor and automatic transmission and shift control method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109955702A (en) * | 2019-03-25 | 2019-07-02 | 重庆长安新能源汽车科技有限公司 | A kind of vehicle and its integrated power drive system assembly |
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Application publication date: 20180420 |