CN104890489B - Motor is arranged in the trapezoidal link-type independent suspension speed-reducing type wheel power drive system of vehicle frame - Google Patents
Motor is arranged in the trapezoidal link-type independent suspension speed-reducing type wheel power drive system of vehicle frame Download PDFInfo
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- CN104890489B CN104890489B CN201510298013.6A CN201510298013A CN104890489B CN 104890489 B CN104890489 B CN 104890489B CN 201510298013 A CN201510298013 A CN 201510298013A CN 104890489 B CN104890489 B CN 104890489B
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- reduction box
- vehicle frame
- motor
- axle
- independent suspension
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Abstract
The present invention proposes the trapezoidal link-type independent suspension speed-reducing type wheel power drive system that a kind of motor is arranged in vehicle frame.It connects firmly electric machine casing on vehicle frame, and the H type swing arms of first order reduction box casing and trapezoidal link-type independent suspension are integrated, and second level reduction box casing and knuckle is integrated.Because motor is arranged on vehicle frame, equivalent unsprung mass is directly reduced, the ride comfort of wheel ground adhesion and vehicle body is improved, with the characteristics of high, the equivalent unsprung mass of integrated degree is small, suspension kinematical performance is good.
Description
Technical field
The invention belongs to electric automobile chassis and transmission field, and in particular to a kind of motor is arranged in the trapezoidal connecting rod of vehicle frame
Formula independent suspension speed-reducing type wheel power drive system.
Background technology
Wheel while power drive system wheel while/wheel in introduce motor, its key structural feature is to install motor
In driving wheel or near driving wheel, have the advantages that driving driving-chain is short, transmission is efficient, compact conformation.According to different roads
Face feedback information and driving cycle, each driving wheel torque are realized and are difficult on orthodox car all by wheel motor independent control
The high performance control function of realization.
Traditional wheel while power drive system wheel while/wheel in introduce motor, increase unsprung mass, connect to wheel
Ground and ride performance bring adverse effect, i.e. unsprung mass negative effect.
In recent years, trapezoidal link-type independent suspension is extensive to be used in senior sedan-chair because of its superior suspension kinematical performance
In the fore suspension and rear suspension of car.The present invention combines the superior function of trapezoidal link-type independent suspension, proposes that a kind of motor is arranged in vehicle frame
On trapezoidal link-type independent suspension speed-reducing type wheel power drive system, motor quality is changed into spring carried mass, directly reduce
The unsprung mass of vehicle body, so as to improve the unsprung mass negative effect of conventional wheel side power drive system, the rear overhang available for car
In frame.
The content of the invention
The present invention proposes the trapezoidal link-type independent suspension speed-reducing type wheel electric drive trains that a kind of motor is arranged in vehicle frame
System.It connects firmly electric machine casing on vehicle frame, the H types swing arm one of first order reduction box casing and trapezoidal link-type independent suspension
Change is integrated, and second level reduction box casing and knuckle is integrated.Because motor is arranged on vehicle frame, directly reduce
Unsprung mass is imitated, the ride comfort of wheel ground adhesion and vehicle body is improved, integrated degree is high.
To achieve the above object of the invention, the technical scheme is that：
A kind of motor is arranged in the trapezoidal link-type independent suspension speed-reducing type wheel power drive system of vehicle frame, including integration
Vehicle frame-electric machine casing assembly, shock absorber, bearing spring, integrated first order reduction box-H type swing arms assembly, the integrated second level
Reduction box-knuckle assembly, upper swing arm, hub bearing, motor, elastic hinge, ball pivot etc..
Electric machine casing is integrated with vehicle frame, and motor power can be exported through universal joint and drive shaft to reduction box first
Axle, also can using motor output shaft as reduction box first axle, so as to realize the flexible arrangement of motor position.First order reduction box
Integrated with H type swing arms, its one end is supported on vehicle frame by rotating hinge, thus acts as the H types pendulum of trapezoidal linkage suspensions
The function of arm.Second level reduction box and knuckle（It is oriented to section）It is integrated, second level input gear and first order output gear
Wheel is coupled in modes such as splines with the second axle, and the second axle serves as the effect of the rotating hinge between the swing arm of H types and knuckle.The second level
Reduction box-knuckle assembly upper end is connected with ball pivot with upper swing arm, and the other end of upper swing arm is connected with ball pivot with vehicle frame.Hub spindle
Hold and be made up of hub bearing inner ring, hub bearing outer ring, wheel hub (hub bearing inner ring) relative to hub bearing outer ring can and only
The rotation around hub bearing central axis can be made.Hub bearing outer ring with integrated second level reduction box-knuckle assembly
Reduction box casing is connected firmly, bearing inner race and second level output shaft（Semiaxis）, wheel rim, brake revolving part connect firmly.
The motor power output shaft may act as reduction box first axle and couple with first order input gear, also can be through universal
Section and power transmission shaft are connected with reduction box first axle, and motor speed slows down through first, second grade of reduction box and transmits motor power
To the third generation bearing inner race and wheel rim connected firmly with second level reduction box power output shaft, so that driving moment.
Compared with prior art, the method have the characteristics that：
（1）Combine the advantage of trapezoidal link-type independent suspension and integrated wheel side drive system, the motor arrangement
In the suspension kinematical superior performance of the trapezoidal link-type independent suspension speed-reducing type wheel power drive system of vehicle frame, such as wheel is being jumped
Camber angle and toe-in angle are stable during dynamic；
（2）Electric machine casing is integrated with vehicle frame, and first order reduction box and H type swing arms are integrated and serve as H types
Swing arm, second level reduction box serves as knuckle（It is oriented to section）, integrated degree height；
（3）Using double reduction case slow down increase turn round, can mesh power density it is higher, the smaller motor of volume mass, mitigate
Vehicle body total quality, improves energy utilization efficiency, because motor is arranged on vehicle frame, directly reduces unsprung mass, it is suppressed that
Unsprung mass negative effect；
（4）Position of the motor on vehicle frame can flexible arrangement, provide more spaces for the arrangement of shock absorber and bearing spring,
Vehicle centroid position is improved simultaneously, spacing that vehicle body is liftoff increase improves the security of traveling；
（5）According to the difference of the axle of reduction box second and wheel axis angle, second level reduction box can be passed using worm and gear
Many type of belt drive such as dynamic, crossed helical involute gears, parallel-axes gears transmission；
（6）During Vehicular turn, motor not with wheel steering, thus compared to traditional motor, decelerator be arranged in wheel in/
The power drive system on side is taken turns, steering moment of inertia of the invention is smaller, steering response is more sensitive.
Brief description of the drawings
Fig. 1 is the trapezoidal link-type independent suspension speed-reducing type wheel power drive system structure that motor of the present invention is arranged in vehicle frame
Schematic diagram.
Label declaration in accompanying drawing：
1 --- integral frame-electric machine casing assembly；
101 --- electric machine casing；
2 --- integrated first order reduction box-H type swing arm assemblies；
201 --- first order reduction box casing；
3 --- integrated second level reduction box-knuckle assembly；
301 --- second level reduction box casing；
4 --- upper swing arm；
5 --- hub bearing；
501 --- hub bearing outer ring；502 --- hub bearing inner ring；
I --- the first ball pivot；II --- the second ball pivot；
The axle of a --- reduction box the 3rd（Power output shaft）Axis；
B --- reduction box the second axle axis；
C --- reduction box first axle axis.
Embodiment
1 the invention will be further described below in conjunction with the accompanying drawings.
Motor is arranged in the trapezoidal link-type independent suspension speed-reducing type wheel power drive system of vehicle frame, including integrated car
Frame-electric machine casing assembly 1, integrated first order reduction box-H type swing arms assembly 2, integrated second level reduction box-knuckle are total
Into 3, upper swing arm 4, hub bearing 5, the first ball pivot I, second ball pivot II etc..
Electric machine casing 101 and vehicle frame are integrated, and motor power output shaft（At reduction box first axle axis c）With
One-level input gear（It is not drawn into figure）Couple in forms such as splines, thus act as the effect of reduction box first axle.The first order subtracts
Fast tank shell 201 is around motor power output shaft axis（Reduction box first axle axis c）Rotate, motor power output shaft is thus acted as
The function of revolute pair between the swing arm of H types and vehicle frame.The integrated first order reduction box-H type swing arms of first order reduction box casing 201 are total
Into 2 part, and serve as the H type swing arm functions of trapezoidal link-type independent suspension.Second level reduction box casing 301 is integrated
A part for second level reduction box-knuckle assembly 3, and serve as knuckle（It is oriented to section）Function.First order reduction box casing
201 with second level reduction box casing 301 with the axle of reduction box second（In schematic diagram at reduction box the second axle axis b）Connection, and only
It can be relatively rotated around the second axle of reduction box axis, the axle of reduction box second thus acts as the revolute pair that the swing arm of H types is connected with knuckle
Function.Second level reduction box casing 301 is connected by the first ball pivot I with upper swing arm 4, and the other end of upper swing arm 4 passes through second
Ball pivot II is connected with integral frame-electric machine casing assembly 1.Hub bearing 5 is by hub bearing inner ring 502, hub bearing outer ring
501 compositions, hub bearing inner ring 502 can and only can be around the axle of reduction box the 3rd relative to hub bearing outer ring 501（Power output
Axle）Axis a is rotated.Hub bearing outer ring 501 is connected firmly with second level reduction box casing 301, hub bearing inner ring 502 then with deceleration
Case power output shaft, wheel rim and brake revolving part are connected firmly.
Motor power output shaft（Reduction box first axle axis c i.e. in accompanying drawing 1）Serve as reduction box first axle（Do not drawn in figure
Go out）Function, and with the input gear in first order reduction box casing 201（It is not drawn into figure）Couple in forms such as splines, move
Power is transferred to the second axle via a pair of parallel axle fixed axis gear in first order reduction box casing 201（Reduction box i.e. in accompanying drawing 1
Two axle axis b）.Input gear in second level reduction box casing 301（It is not drawn into figure）Connected firmly with the axle of reduction box second, finally
Motor power is via a pair of crossed helical gears in second level reduction box casing 301（It is not drawn into figure）Reduction box is transferred to move
Power output shaft（The axle axis a of reduction box the 3rd i.e. in accompanying drawing 1）And at the hub bearing inner ring connected firmly with power output shaft, so as to drive
Motor car wheel.
In the present invention, position of the motor on vehicle frame can flexible arrangement, such as by motor centralized arrangement at vehicle frame axis,
Now motor power output shaft does not serve as reduction box first axle（It is not drawn into figure）Function.Motor power output shaft and reduction box
Because vehicle frame limitation there may be certain angle between first axle, can by universal joint and drive shaft by motor power output shaft and
Reduction box first axle is connected, so that power is inputted to reduction box first axle.
According to the corner dimension between each axis, the gear mesh of reduction box can be driven using different forms.Slow down
Case first axle axis c forms an angle with reduction box the second axle axis b, being slowed down according to the corner dimension first order can use parallel
Axle fixed axis gear（）, crossed helical gears（）Or turbine and worm, bevel gear（）Realize.Slow down
Case the second axle axis b and power output shaft axis a are at a certain angle, being slowed down according to the corner dimension second level can use parallel
Axle fixed axis gear（）, crossed helical gears（）Or turbine and worm（）Realize.
Claims (6)
1. motor is arranged in the trapezoidal link-type independent suspension speed-reducing type wheel power drive system of vehicle frame, it is characterised in that：Motor
Housing is integrated with vehicle frame, and motor power output shaft serves as the effect of reduction box first axle；First order reduction box casing
Rotated around motor power output shaft axis, motor power output shaft thus acts as the function of revolute pair between the swing arm of H types and vehicle frame；The
A part for the integrated first order reduction box-H types swing arm assembly of primary speed-down tank shell, and it is independently outstanding to serve as trapezoidal link-type
The H type swing arm functions of frame；A part for the integrated second level reduction box-knuckle assembly of second level reduction box casing, and fill
When the function of knuckle；First order reduction box casing is connected with second level reduction box casing with the axle of reduction box second, reduction box
Two axles thus act as the function for the revolute pair that the swing arm of H types is connected with knuckle；Second level reduction box casing by the first ball pivot with
Upper swing arm is connected, and the upper swing arm other end is connected by the second ball pivot with integral frame-electric machine casing assembly；Hub bearing outer ring
Connected firmly with second level reduction box casing, hub bearing inner ring is then solid with reduction box power output shaft, wheel rim and brake revolving part
Connection.
2. motor according to claim 1 is arranged in the trapezoidal link-type independent suspension speed-reducing type wheel electric drive trains of vehicle frame
System, it is characterised in that：Motor can flexible arrangement in vehicle frame, motor power is transferred to reduction box through universal joint, transmission shaft component
One axle, reduction box first axle serves as the function of revolute pair between the swing arm of H types and vehicle frame.
3. motor according to claim 1 is arranged in the trapezoidal link-type independent suspension speed-reducing type wheel electric drive trains of vehicle frame
System, it is characterised in that：Motor power is transferred to the second axle, second via a pair of parallel axle fixed axis gear in first order reduction box
Input gear in level reduction box couples with the axle of reduction box second, and final motor power is via a pair of friendships in the reduction box of the second level
Wrong axis helical teeth wheel（Or parallel axes fixed axis gear, turbine and worm）It is transferred to reduction box power output shaft and is connected firmly with power output shaft
Third generation hub bearing inner ring at, so as to drive the wheel connected firmly with hub bearing inner ring.
4. motor according to claim 3 is arranged in the trapezoidal link-type independent suspension speed-reducing type wheel electric drive trains of vehicle frame
System, it is characterised in that：A pair of described crossed helical gears, can also be replaced by parallel axes fixed axis gear or turbine and worm.
5. motor according to claim 1 is arranged in the trapezoidal link-type independent suspension speed-reducing type wheel electric drive trains of vehicle frame
System, it is characterised in that：Reduction box first axle axis forms an angle with reduction box the second axle axis, according to corner dimension first
Level, which is slowed down, to be used：
WhenWhen, it is parallel axes fixed axis gear；
Or work asWhen, it is crossed helical gears；
Or work asWhen, it is that turbine and worm or bevel gear are realized.
6. motor according to claim 1 is arranged in the trapezoidal link-type independent suspension speed-reducing type wheel electric drive trains of vehicle frame
System, it is characterised in that：Reduction box the second axle axis and power output shaft axis are at a certain angle, according to corner dimension second
Level, which is slowed down, to be used：
WhenWhen, parallel axes fixed axis gear；
Or work asWhen, crossed helical gears；
Or work asWhen, turbine and worm is realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510298013.6A CN104890489B (en) | 2015-06-03 | 2015-06-03 | Motor is arranged in the trapezoidal link-type independent suspension speed-reducing type wheel power drive system of vehicle frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510298013.6A CN104890489B (en) | 2015-06-03 | 2015-06-03 | Motor is arranged in the trapezoidal link-type independent suspension speed-reducing type wheel power drive system of vehicle frame |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104890489A CN104890489A (en) | 2015-09-09 |
| CN104890489B true CN104890489B (en) | 2017-08-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510298013.6A Active CN104890489B (en) | 2015-06-03 | 2015-06-03 | Motor is arranged in the trapezoidal link-type independent suspension speed-reducing type wheel power drive system of vehicle frame |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016200926A1 (en) * | 2016-01-22 | 2017-07-27 | Ford Global Technologies, Llc | Adaptation method and motor vehicle |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102139638A (en) * | 2011-03-07 | 2011-08-03 | 同济大学 | Structure for reducing equivalent unsprung mass of single cross arm suspension wheel-side electric driving system and method |
| CN102887058A (en) * | 2012-10-15 | 2013-01-23 | 同济大学 | Speed reducing type electric drive system in integrated McPherson hanger bracket wheel |
| CN102887069A (en) * | 2012-10-15 | 2013-01-23 | 同济大学 | Integrated double-cross-arm suspension reduction type electric wheel driving system |
| CN103707749A (en) * | 2013-12-11 | 2014-04-09 | 同济大学 | Integrated single-trailing-arm gear-reducing type electric wheel drive system |
| CN203920426U (en) * | 2014-02-07 | 2014-11-05 | 同济大学 | For integrated pair of trailing arm suspension fork wheel edge power drive system of wheel flutter |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005324606A (en) * | 2004-05-12 | 2005-11-24 | Toyota Motor Corp | Electric automobile |
-
2015
- 2015-06-03 CN CN201510298013.6A patent/CN104890489B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102139638A (en) * | 2011-03-07 | 2011-08-03 | 同济大学 | Structure for reducing equivalent unsprung mass of single cross arm suspension wheel-side electric driving system and method |
| CN102887058A (en) * | 2012-10-15 | 2013-01-23 | 同济大学 | Speed reducing type electric drive system in integrated McPherson hanger bracket wheel |
| CN102887069A (en) * | 2012-10-15 | 2013-01-23 | 同济大学 | Integrated double-cross-arm suspension reduction type electric wheel driving system |
| CN103707749A (en) * | 2013-12-11 | 2014-04-09 | 同济大学 | Integrated single-trailing-arm gear-reducing type electric wheel drive system |
| CN203920426U (en) * | 2014-02-07 | 2014-11-05 | 同济大学 | For integrated pair of trailing arm suspension fork wheel edge power drive system of wheel flutter |
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| CN104890489A (en) | 2015-09-09 |
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