CN201472465U - Differential steering drive mechanism for four-wheel electric vehicle - Google Patents
Differential steering drive mechanism for four-wheel electric vehicle Download PDFInfo
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- CN201472465U CN201472465U CN2009201885030U CN200920188503U CN201472465U CN 201472465 U CN201472465 U CN 201472465U CN 2009201885030 U CN2009201885030 U CN 2009201885030U CN 200920188503 U CN200920188503 U CN 200920188503U CN 201472465 U CN201472465 U CN 201472465U
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- 230000007246 mechanism Effects 0.000 title claims abstract description 32
- 241000883966 Astrophytum capricorne Species 0.000 claims description 15
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 7
- 238000012423 maintenance Methods 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 2
- 230000008569 process Effects 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 4
- 230000009194 climbing Effects 0.000 description 3
- 230000017105 transposition Effects 0.000 description 3
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- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model discloses a differential steering drive mechanism for a four-wheel electric vehicle, which comprises a front wheel drive axle, a back wheel drive axle and an electric control device. The front wheel drive axle comprises a front axle and two motors installed at two sides of the front axle through horn-shaped steering knuckles, and each motor is connected with a front wheel and drives the front wheel. The back wheel drive axle comprises a back axle and two motors installed on the back axle, and each motor is connected with a back wheel and drives the back wheel. The electric control device is connected with the four motors. The utility model adopts the electric control device to control the two motors on the front axle to drive the two front wheels to move with different speeds so as to steer the vehicle. Compared with the existing mechanical steering mechanism, the differential steering drive mechanism has the advantages that mechanical moment transmission is omitted in the steering process and the differential steering drive mechanism is more energy-saving, flexible and convenient. Compared with the prior art, the differential steering drive mechanism is dispensed with a front axle steering mechanism and a back axle differential mechanism, thereby significantly simplifying the chassis structure of the four-wheel electric vehicle and lightening the maintenance workload.
Description
Technical field
The utility model relates to a kind of differential steering drive mechanism of four-wheel electric motor car.
Background technology
Existing four-wheel electric motor car is to adopt single motor central driving, and in order to realize turning to, propons need have steering hardware, back axle need have diff, chassis structure complexity, steering operation effort, the all easy mechanical wear of universal-joint, gear, tooth bar and differential gear, maintenance load is big.And motor is for there being the brush DC machine, and efficient is low, and brush has wearing and tearing to need periodical maintenance to change.The electromagnetic interference problem that sparking at the brushes brought is also troubling.It is cross-country for traditional in addition back-wheel drive, grade climbing performance is also not satisfactory.
Summary of the invention
The utility model purpose is: provide a kind of the running by two front-wheel differentials to realize having the four-wheel electric motor car differential steering drive axle that turns to and steering operation labour-saving characteristics simple in structure.
The technical solution of the utility model is: a kind of differential steering drive mechanism of four-wheel electric motor car comprises f-w-d bridge, back-wheel drive bridge and electrical controller; Described f-w-d bridge comprises front wheel spindle and is installed in two motors of front wheel spindle both sides by the goat's horn steering swivel, and each motor connects respectively and drives a front-wheel; And described back-wheel drive bridge comprises hind axle and two motors that are installed on the hind axle, and each motor connects respectively and drive a trailing wheel, and described electrical controller links to each other with above-mentioned four motors.
The further technical scheme of the utility model is: a kind of differential steering drive mechanism of four-wheel electric motor car comprises f-w-d bridge, back-wheel drive bridge and electrical controller; Described f-w-d bridge comprises front wheel spindle and is installed in two motors of front wheel spindle both sides by the goat's horn steering swivel, and each motor connects respectively and drives a front-wheel; And described back-wheel drive bridge comprises hind axle and two motors that are installed on the hind axle, and each motor connects respectively and drive a trailing wheel, described electrical controller links to each other with above-mentioned four motors, and two motors on the f-w-d bridge are arranged in two front-wheel outsides.
The utility model further technical scheme is: a kind of differential steering drive mechanism of four-wheel electric motor car comprises f-w-d bridge, back-wheel drive bridge and electrical controller; Described f-w-d bridge comprises front wheel spindle and is installed in two motors of front wheel spindle both sides by the goat's horn steering swivel, and each motor connects respectively and drives a front-wheel; And described back-wheel drive bridge comprises hind axle and two motors that are installed on the hind axle, and each motor connects respectively and drive a trailing wheel, described electrical controller links to each other with above-mentioned four motors, and two motors on the f-w-d bridge are arranged in two front-wheel outsides, and two motors on the back-wheel drive bridge are arranged in two trailing wheel inboards.
The technical scheme that the utility model is detailed is: a kind of differential steering drive mechanism of four-wheel electric motor car comprises f-w-d bridge, back-wheel drive bridge and electrical controller; Described f-w-d bridge comprises front wheel spindle and is installed in two motors of front wheel spindle both sides by the goat's horn steering swivel, and each motor connects respectively and drives a front-wheel; And described back-wheel drive bridge comprises hind axle and two motors that are installed on the hind axle, and each motor connects respectively and drive a trailing wheel, and described electrical controller links to each other with above-mentioned four motors; Two motors on the described f-w-d bridge are arranged in two front-wheel outsides; And two motors on the back-wheel drive bridge are arranged in two trailing wheel inboards; And two motors on the described f-w-d bridge all adopt the external rotor permanent magnet brshless DC motor, and the stator of each motor is fixed on the coupling spindle of goat's horn steering swivel, and rotor is directly fixed with the wheel hub of front-wheel; Two motors on the described back-wheel drive bridge also all adopt the external rotor permanent magnet brshless DC motor simultaneously, and the stator of each motor is fixed on the hind axle, and rotor is directly fixed with the wheel hub of trailing wheel.In order when turning to, to learn the angle that turns over of front-wheel accurately, better control the operation of four-wheel electric motor car, the utility model also comprises angular-motion transducer, this angular-motion transducer is arranged on arbitrary goat's horn steering swivel, and links to each other with described electrical controller.
This differential steering drive mechanism of four-wheel electric motor car described in the utility model, it drives two front-wheels respectively with different rotation speed operation (being the differential running) by two motors on the electrical controller control front wheel spindle, make four-wheel electric motor car produce steering effort, finish turning to this.And in steering procedure, the utility model drives two trailing wheels respectively with different rotation speed operation by two motors that electrical controller is controlled on the hind axle simultaneously, thereby the rotating speed of each wheel when coordinating to turn to, reduce wheel with respect to ground-surface slip, reduce Tyte Wear, reduce cornering resistance.
The utility model advantage is:
1. this differential steering drive mechanism of four-wheel electric motor car described in the utility model, it drives two front-wheels respectively by two motors on the electrical controller control front wheel spindle and realizes turning to different rotation speed operation, compare with the existing mechanical steering hardware, its steering procedure need not to transmit mechanical force moment, more laborsaving, also more flexible.
2. this differential steering drive mechanism of four-wheel electric motor car described in the utility model compared to existing technology, owing to cancelled Front Axle Steering Mechanism and rear-axle differential, has been simplified the four-wheel electric motor car chassis structure greatly, has alleviated maintenance load.
3. this differential steering drive mechanism of four-wheel electric motor car described in the utility model, all further adopt the external rotor permanent magnet brshless DC motor owing to connect the motor that drives front-wheel and trailing wheel, have higher electrical efficiency and driving efficiency, and there are not wear of brush and brush cremate problem, efficiently solve the electromagnetic interference that sparking at the brushes brings, electrical machinery life is longer, thereby has further improved the run stability and the reliability of whole differential steering drive mechanism.
4. this differential steering drive mechanism of four-wheel electric motor car described in the utility model is because motor drives for four wheels is arranged independently, so improved the grade climbing performance and the off-road capability of four-wheel electric motor car greatly.
5. this differential steering drive mechanism of four-wheel electric motor car described in the utility model, owing to realize advancing and turning to of four-wheel electric motor car by electrical controller control motor fully, so be fit to more be placed on the four-wheel electric motor car of unmanned type, also more help the realization of four-wheel electric motor car remote-control.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further described:
Fig. 1 is the structural representation of the utility model specific embodiment.
Wherein: 1, front wheel spindle; 2, goat's horn steering swivel; 201, coupling spindle; 3, motor; 301, stator; 302, rotor; 4, front-wheel; 5, hind axle; 6, trailing wheel.
The specific embodiment
Embodiment: as shown in Figure 1, this differential steering drive mechanism of four-wheel electric motor car that present embodiment provided comprises f-w-d bridge, back-wheel drive bridge and electrical controller; Described f-w-d bridge comprises front wheel spindle 1 and is installed in two motors 3 of front wheel spindle 1 both sides by goat's horn steering swivel 2, and each motor 3 connects respectively and drives a front-wheel 4; And described back-wheel drive bridge comprises hind axle 5 and two motors 3 that are installed on the hind axle 5, and each motor 3 connects respectively and drive a trailing wheel 6, and described electrical controller links to each other with above-mentioned four motors 3.
Two motors 3 on the bridge of f-w-d described in the present embodiment are arranged in two front-wheel 4 outsides; And two motors 3 on the back-wheel drive bridge are arranged in two trailing wheel 6 inboards.And two motors 3 on the bridge of f-w-d described in the present embodiment all adopt the external rotor permanent magnet brshless DC motor, and the stator 301 of each motor 3 is fixed on the coupling spindle 201 of goat's horn steering swivel 2, and rotor 302 is directly fixed with the wheel hub of front-wheel 4; Two motors 3 on the described back-wheel drive bridge also all adopt the external rotor permanent magnet brshless DC motor simultaneously, and the stator 301 of each motor 3 is fixed on the hind axle 5, and rotor 302 is directly fixed with the wheel hub of trailing wheel 6.
In order when turning to, to learn the angle that turns over of front-wheel 4 accurately, the better operation of control four-wheel electric motor car, the utility model also comprises angular-motion transducer (not drawing among the figure), and this angular-motion transducer is arranged on wherein arbitrary goat's horn steering swivel 2, and links to each other with described electrical controller.
Mainly drive two front-wheels 4 respectively with different rotation speed operation (differential) during present embodiment work by two motors 3 on the electrical controller control front wheel spindle 1, make two front-wheels 4 deflect around separately goat's horn steering swivel 2, force four-wheel electric motor car to produce amesiality steering effort with this, turn to thereby finish.And in steering procedure, angular-motion transducer detects the angular transposition (this angular transposition also is the angular transposition of front-wheel) of goat's horn steering swivel, parameter is passed to electrical controller carry out closed-loop process.Two motors 3 that control setup is controlled on the hind axle 5 simultaneously in steering procedure drive two trailing wheels 6 respectively with different rotation speed operation, thereby rotating speed of each wheel when coordinating to turn to reduces tire with respect to ground-surface slip, reduces Tyte Wear.
The described this differential steering drive mechanism of four-wheel electric motor car of present embodiment drives two front-wheels 4 respectively by two motors 3 on the electrical controller control front wheel spindle 1 and realizes turning to different rotation speed operation, compare with the existing mechanical steering hardware, its steering procedure need not to transmit mechanical force moment, more laborsaving, also more flexible.
And compared to existing technology, present embodiment has been simplified the four-wheel electric motor car chassis structure greatly owing to cancelled Front Axle Steering Mechanism and rear-axle differential, has alleviated maintenance load.
And because four motors 3 described in the present embodiment all adopt the external rotor permanent magnet brshless DC motor, have higher electrical efficiency and driving efficiency, and there are not wear of brush and brush cremate problem, efficiently solve the electromagnetic interference that sparking at the brushes brings, electrical machinery life is longer, thereby has further improved the run stability and the reliability of whole differential steering drive mechanism.
And in the present embodiment because motor drives for four wheels is arranged independently, so improved the grade climbing performance and the off-road capability of four-wheel electric motor car greatly.
And the described this differential steering drive mechanism of four-wheel electric motor car of present embodiment, owing to realize advancing and turning to of four-wheel electric motor car by electrical controller control motor fully, so be fit to more be placed on the four-wheel electric motor car of unmanned type, also more help the realization of four-wheel electric motor car remote-control.
Certainly the foregoing description only is explanation technical conceive of the present utility model and characteristics, and its purpose is to allow the people who is familiar with this technology can understand content of the present utility model and enforcement according to this, can not limit protection domain of the present utility model with this.All equivalent transformation or modifications of doing according to the spirit of the utility model main technical schemes all should be encompassed within the protection domain of the present utility model.
Claims (5)
1. a differential steering drive mechanism of four-wheel electric motor car comprises f-w-d bridge, back-wheel drive bridge and electrical controller; It is characterized in that described f-w-d bridge comprises front wheel spindle (1) and is installed in two motors (3) of front wheel spindle (1) both sides by goat's horn steering swivel (2), each motor (3) connects respectively and drives a front-wheel (4); And described back-wheel drive bridge comprises hind axle (5) and be installed in two motors (3) on the hind axle (5), and each motor (3) connects respectively and drive a trailing wheel (6), and described electrical controller links to each other with above-mentioned four motors (3).
2. differential steering drive mechanism of four-wheel electric motor car according to claim 1 is characterized in that two motors (3) on the f-w-d bridge are arranged in two front-wheels (4) outside.
3. differential steering drive mechanism of four-wheel electric motor car according to claim 2 is characterized in that two motors (3) on the back-wheel drive bridge are arranged in two trailing wheels (6) inboard.
4. according to claim 1 or 2 or 3 described differential steering drive mechanism of four-wheel electric motor car, it is characterized in that two motors (3) on the described f-w-d bridge all adopt the external rotor permanent magnet brshless DC motor, the stator (301) of each motor (3) is fixed on the coupling spindle (201) of goat's horn steering swivel (2), and the wheel hub of the direct same front-wheel of rotor (302) (4) is fixed; Two motors (3) on the described back-wheel drive bridge also all adopt the external rotor permanent magnet brshless DC motor simultaneously, and the stator (301) of each motor (3) is fixed on the hind axle (5), and the wheel hub of the direct same trailing wheel of rotor (302) (6) is fixed.
5. according to claim 1 or 2 or 3 described differential steering drive mechanism of four-wheel electric motor car, it is characterized in that also comprising and the angular-motion transducer of the corresponding setting of described arbitrary goat's horn steering swivel (2) that this angular-motion transducer links to each other with described electrical controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201885030U CN201472465U (en) | 2009-07-30 | 2009-07-30 | Differential steering drive mechanism for four-wheel electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201885030U CN201472465U (en) | 2009-07-30 | 2009-07-30 | Differential steering drive mechanism for four-wheel electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201472465U true CN201472465U (en) | 2010-05-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201885030U Expired - Fee Related CN201472465U (en) | 2009-07-30 | 2009-07-30 | Differential steering drive mechanism for four-wheel electric vehicle |
Country Status (1)
| Country | Link |
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| CN (1) | CN201472465U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105882454A (en) * | 2015-01-04 | 2016-08-24 | 盐城玉欣电动科技有限公司 | Electric vehicle with non- steering system |
| CN110581618A (en) * | 2019-08-08 | 2019-12-17 | 南京金龙新能源汽车研究院有限公司 | Novel motor structure |
| CN113479259A (en) * | 2021-08-16 | 2021-10-08 | 南京工程学院 | Three-degree-of-freedom steering method and system |
-
2009
- 2009-07-30 CN CN2009201885030U patent/CN201472465U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105882454A (en) * | 2015-01-04 | 2016-08-24 | 盐城玉欣电动科技有限公司 | Electric vehicle with non- steering system |
| CN110581618A (en) * | 2019-08-08 | 2019-12-17 | 南京金龙新能源汽车研究院有限公司 | Novel motor structure |
| CN113479259A (en) * | 2021-08-16 | 2021-10-08 | 南京工程学院 | Three-degree-of-freedom steering method and system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100519 Termination date: 20110730 |