CN103863387A - Electric power steering device and corresponding steering system - Google Patents
Electric power steering device and corresponding steering system Download PDFInfo
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- CN103863387A CN103863387A CN201210549968.0A CN201210549968A CN103863387A CN 103863387 A CN103863387 A CN 103863387A CN 201210549968 A CN201210549968 A CN 201210549968A CN 103863387 A CN103863387 A CN 103863387A
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- steering
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- steering shaft
- shaft
- bearing circle
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Abstract
The invention discloses an electric power steering device and a corresponding steering system. The electric power steering device comprises a power motor of which the output shaft is in transmission connection with a steering shaft, and a controller which is electrically connected with the power motor so as to control the output of the power motor according to a received control signal. Preferably, the electric power steering device is used for a commercial vehicle. The steering system comprises a steering wheel, the steering shaft, and the electric power steering device, wherein one end of the steering shaft is connected to the steering wheel so as to rotate synchronously with the steering wheel, while the other end of the steering shaft is connected to wheels by virtue of universal joints. As a result, the motor is used for providing power to the steering shaft of the steering shaft, and therefore, the problem of heavy steering in the operation process of a driver is avoided, and the problems of increased motor power loss, increased oil consumption and the like also are avoided.
Description
Technical field
The present invention relates to automobile technical field, particularly relate to a kind of electric power-assisted steering apparatus and corresponding steering swivel system, in particular for electric power-assisted steering apparatus and corresponding steering swivel system for light card and little fortune vehicle.
Background technology
The light card of prior art and the little fortune vehicle overwhelming majority are non-power-steering, hard steering when driver operates.
Although there is part vehicle to adopt hydraulic power-assisted steering, while needing to turn in Vehicle Driving Cycle, power steering can assist chaufeur to do automobile steering adjustment, for chaufeur alleviates the force intensity of using of beating bearing circle.Traditional steering boost system is mechanical-hydraulic servo steering system.Specific works principle is as follows: Vehicular turn force aid system drives Hydraulic Pump by dynamo belt, engine power output is converted into prexxure of the hydraulic pump, with hydraulic way, steering swivel system is applied to assistance force, thereby make tyre revolution to lighter rapid, reduce driver driving intensity.
Obviously, can solve hard steering problem though increase hydraulic power-assisted steering, realize steering manipulation portability, bring too engine power loss to strengthen, the problems such as oil consumption increase.
Wish the problem that a kind of new servo steering system overcomes or alleviate prior art for this reason.
Summary of the invention
The object of the present invention is to provide a kind of new servo steering system to overcome or alleviate the problem of prior art, a kind of electric power-assisted steering apparatus and corresponding steering swivel system for light card and little fortune vehicle is especially provided.
For this reason, the invention provides a kind of electric power-assisted steering apparatus, described electric power-assisted steering apparatus comprises: assist motor, and its output shaft and steering shaft are in transmission connection; And controller, it is electrically connected the output to control described assist motor according to the control signal receiving with described assist motor.Preferably, described electric power-assisted steering apparatus is for commercial vehicle/comm..vehicle.
Thereby adopt the steering shaft that electrical motor is steering swivel system that power-assisted is provided, the problem of hard steering while having avoided driver to operate, but also avoided engine power loss to strengthen, the problems such as oil consumption increase.
Preferably, described electric power-assisted steering apparatus further comprises torque sensor, and described torque sensor detects driver and is applied to the moment of torsion on bearing circle, and output electric signal proportional to detected moment of torsion is to described controller.
Preferably, described electric power-assisted steering apparatus further comprises car speed sensor, and described car speed sensor detects the speed of vehicle, and output electric signal proportional to detected speed is to described controller.
Preferably, the described output shaft of described assist motor is in transmission connection by speed reduction gearing and described steering shaft.
Preferably, the reduction ratio of described speed reduction gearing, in the scope of 17:1 to 20:1, is preferably 18.5:1.The present invention has strengthened servomechanism transmitting ratio, has improved electric boosting steering system and has been difficult to be applied to the drawback on commercial vehicle/comm..vehicle.
The present invention also provides a kind of steering swivel system, and described steering swivel system comprises: bearing circle; Steering shaft, its one end is connected to described bearing circle to synchronize and to rotate with bearing circle, and the other end is connected to wheel by Hooke's coupling; And electric power-assisted steering apparatus as above.
Preferably, described steering swivel system, further comprises steering wheel angle control apparatus.Thereby can realize steering wheel angle adjustment, take into full account ergonomic design theory, make steering manipulation hommization more.
Preferably, described steering wheel angle control apparatus comprises steering shaft lock locking mechanism, when described steering shaft lock locking mechanism is during in release position, allows described steering shaft and described bearing circle to carry out angular adjustment with respect to described Hooke's coupling; When described steering shaft lock locking mechanism is during in lockup state, lock described steering shaft and the described bearing circle angle position with respect to described Hooke's coupling.
Preferably, described steering swivel system, further comprises circulating ball manual steering gear, and the input side of described circulating ball manual steering gear is connected to described Hooke's coupling, and outgoing side is connected to wheel.Thereby the mechanical circulating ball deflector high with efficiency, gap is little has realized and the docking of servodrive system.
Adjustable steering swivel system for light truck provided by the invention, comprises bearing circle, mechanical circulating ball deflector, assist motor, speed reduction gearing, controller, steering shaft, angle adjusting mechanism etc.Described steering swivel system obtains input torque signal and/or Vehicular status signal by controller, and according to the output of described signal control assist motor, makes assist motor export suitable assist torque to steering shaft, realizes servo-steering.This invention provides power steering on the one hand, has reduced on the other hand engine power loss, and can realize the function and the hommization regulatory function that turn to speed control system.
Accompanying drawing explanation
Fig. 1 is the structural representation of steering swivel system according to an embodiment of the invention.
Reference numeral:
1 circulating ball manual steering gear
2 transmission shafts
3 assist motors
4 controllers
5 storage batterys
6 angle regulators
7 Hooke's couplings
8 speed reduction gearings
9 steering shafts
The specific embodiment
For making object of the invention process, technical scheme and advantage clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is further described in more detail.In the accompanying drawings, same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Described embodiment is the present invention's part embodiment, rather than whole embodiment.Be exemplary below by the embodiment being described with reference to the drawings, be intended to for explaining the present invention, and can not be interpreted as limitation of the present invention.Based on the embodiment in the present invention, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of protection of the invention and below in conjunction with accompanying drawing, embodiments of the invention are elaborated.
In description of the invention; it will be appreciated that; term " orientation or the position relationship of the indication such as " center ", " longitudinally ", " laterally ", 'fornt', 'back', " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward " they are based on orientation shown in the drawings or position relationship; be only the present invention for convenience of description and simplified characterization; rather than indicate or imply that the device of indication or element must have specific orientation, construct and operation with specific orientation, therefore can not be interpreted as limiting the scope of the invention.
Comprise assist motor and controller according to the electric power-assisted steering apparatus of first embodiment of the invention.Output shaft and the steering shaft of described assist motor are in transmission connection, thereby provide power steering torque to described steering shaft.Described controller is electrically connected the output torque to control described assist motor according to the control signal receiving with described assist motor.For example, described electric power-assisted steering apparatus is for commercial vehicle/comm..vehicle.Described control signal can be for example that driver is applied to moment of torsion, the speed of a motor vehicle and/or the vehicle capacity state (for example, heavy duty, underloading or zero load) on bearing circle.
Thereby adopt the steering shaft that electrical motor is steering swivel system that power torque is provided, power steering is provided.The problem of hard steering while having avoided thus driver to operate, but also avoided engine power loss to strengthen, the problems such as oil consumption increase.
In a preferred embodiment, described electric power-assisted steering apparatus comprises torque sensor, and described torque sensor detects driver and is applied to the moment of torsion on bearing circle, and output electric signal proportional to detected moment of torsion is to described controller.
In a further advantageous embodiment, described electric power-assisted steering apparatus comprises car speed sensor, and described car speed sensor detects the speed of vehicle, and output electric signal proportional to detected speed is to described controller.
Advantageously, the described output shaft of described assist motor is in transmission connection by speed reduction gearing and described steering shaft.For example, the reduction ratio of described speed reduction gearing in the scope at 17:1 to 20:1, for example, is 17:1,18.5:1 or 20:1.The present invention has strengthened servomechanism transmitting ratio, has improved electric boosting steering system and has been difficult to be applied to the drawback on commercial vehicle/comm..vehicle.Find through test, in the time of the reduction ratio of selecting within the scope of this, under equal conditions, chaufeur is good for the manipulation sense evaluation of bearing circle.In the time selecting the reduction ratio of 18.5:1, under equal conditions, chaufeur is best for the manipulation sense evaluation of bearing circle.
Fig. 1 is the structural representation of steering swivel system according to an embodiment of the invention.As shown in Figure 1, circulating ball manual steering gear 1 is connected with transmission shaft 2, and transmission shaft 2 is connected with steering shaft 9 by Hooke's coupling 7, and steering shaft 9 is connected with assist motor 3 by speed reduction gearing 8.The upper end of steering shaft 9 connects to synchronize and to rotate with bearing circle with bearing circle (not shown).
Thereby what chaufeur applied by bearing circle turns to torque to be applied on steering shaft 3, after assist motor 3 slows down by speed reduction gearing, the power steering torque of output is also applied on steering shaft 3.Steering shaft 3 is passed to circulating ball manual steering gear 1 by Hooke's coupling 7, transmission shaft 2 by the summation power torque after combination again, is finally passed to wheel flutter.
Described steering swivel system comprises steering wheel angle control apparatus 6.Thereby can realize steering wheel angle adjustment, take into full account ergonomic design theory, make steering manipulation hommization more.Graphic steering wheel angle control apparatus 6 comprises steering shaft lock locking mechanism, when described steering shaft lock locking mechanism is during in release position, allows described steering shaft and described bearing circle to carry out angular adjustment with respect to described Hooke's coupling 7; When described steering shaft lock locking mechanism is during in lockup state, lock described steering shaft and the described bearing circle angle position with respect to described Hooke's coupling 7.Steering shaft lock locking mechanism comprises the double-screw bolt fixing with respect to steering shaft and for example, with respect to the fixing deep-slotted chip breaker of vehicle body (operator's compartment base).Described deep-slotted chip breaker is take described Hooke's coupling 7 as the center of circle.Described double-screw bolt is outstanding from described deep-slotted chip breaker, and can in described deep-slotted chip breaker, move.In the time need to regulating the angle of bearing circle, unscrew the nut being fastened on double-screw bolt, can make described double-screw bolt move in described deep-slotted chip breaker, and then bearing circle or steering shaft are adjusted to the position that is suitable for being operated by driver.Then screw nut, double-screw bolt is fixed with respect to the position of deep-slotted chip breaker, can not move with respect to deep-slotted chip breaker, limit thus the angle of bearing circle.
As shown in Figure 1, described steering swivel system also comprises circulating ball manual steering gear 1, and the input side of described circulating ball manual steering gear 1 is connected to described Hooke's coupling, and outgoing side is connected to wheel.Thereby the mechanical circulating ball deflector high with efficiency, gap is little has realized and the docking of servodrive system.
Adjustable steering swivel system for light truck provided by the invention, comprises bearing circle, mechanical circulating ball deflector, assist motor, speed reduction gearing, controller, steering shaft, angle adjusting mechanism etc.Described steering swivel system obtains input torque signal and/or Vehicular status signal by controller, and according to the output of described signal control assist motor, makes assist motor export suitable assist torque to steering shaft, realizes servo-steering.This invention provides power steering on the one hand, has reduced on the other hand engine power loss, and can realize the function and the hommization regulatory function that turn to speed control system.
Finally it is to be noted: above embodiment only, in order to technical scheme of the present invention to be described, is not intended to limit.Although the present invention is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or part technical characterictic is wherein equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (10)
1. an electric power-assisted steering apparatus, is characterized in that, comprising:
Assist motor, its output shaft and steering shaft are in transmission connection; And
Controller, it is electrically connected the output to control described assist motor according to the control signal receiving with described assist motor.
2. electric power-assisted steering apparatus as claimed in claim 1, it is characterized in that, further comprise torque sensor, described torque sensor detects driver and is applied to the moment of torsion on bearing circle, and output electric signal proportional to detected moment of torsion is to described controller.
3. electric power-assisted steering apparatus as claimed in claim 1, is characterized in that, further comprises car speed sensor, and described car speed sensor detects the speed of vehicle, and output electric signal proportional to detected speed is to described controller.
4. electric power-assisted steering apparatus as claimed in claim 1, is characterized in that, the described output shaft of described assist motor is in transmission connection by speed reduction gearing and described steering shaft.
5. electric power-assisted steering apparatus as claimed in claim 4, is characterized in that, the reduction ratio of described speed reduction gearing is in the scope of 17:1 to 20:1.
6. electric power-assisted steering apparatus as claimed in claim 4, is characterized in that, the reduction ratio of described speed reduction gearing is 18.5:1.
7. a steering swivel system, is characterized in that, comprising:
Bearing circle;
Steering shaft, its one end is connected to described bearing circle to synchronize and to rotate with bearing circle, and the other end is connected to wheel by Hooke's coupling; And
Electric power-assisted steering apparatus as described in any one in claim 1-5.
8. steering swivel system as claimed in claim 7, is characterized in that, further comprises steering wheel angle control apparatus.
9. steering swivel system as claimed in claim 8, it is characterized in that, described steering wheel angle control apparatus comprises steering shaft lock locking mechanism, when described steering shaft lock locking mechanism is during in release position, allows described steering shaft and described bearing circle to carry out angular adjustment with respect to described Hooke's coupling; When described steering shaft lock locking mechanism is during in lockup state, lock described steering shaft and the described bearing circle angle position with respect to described Hooke's coupling.
10. the steering swivel system as described in any one in claim 7-8, is characterized in that, further comprises circulating ball manual steering gear, and the input side of described circulating ball manual steering gear is connected to described Hooke's coupling, and outgoing side is connected to wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210549968.0A CN103863387A (en) | 2012-12-17 | 2012-12-17 | Electric power steering device and corresponding steering system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210549968.0A CN103863387A (en) | 2012-12-17 | 2012-12-17 | Electric power steering device and corresponding steering system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103863387A true CN103863387A (en) | 2014-06-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210549968.0A Pending CN103863387A (en) | 2012-12-17 | 2012-12-17 | Electric power steering device and corresponding steering system |
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| Country | Link |
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| CN (1) | CN103863387A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106143587A (en) * | 2016-08-18 | 2016-11-23 | 安徽泗州拖拉机制造有限公司 | The steering control device of a kind of big-powered tractor and control method |
| CN108495770A (en) * | 2016-01-25 | 2018-09-04 | 蒂森克虏伯普利斯坦股份公司 | Steering column with electric steering |
| CN110481632A (en) * | 2019-07-06 | 2019-11-22 | 清华大学 | A kind of line traffic control independent steering actuating mechanism based on polyphase machine driving |
| CN111137352A (en) * | 2018-11-02 | 2020-05-12 | 北汽福田汽车股份有限公司 | Steering force control method and device and vehicle |
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| US6293366B1 (en) * | 2000-02-16 | 2001-09-25 | Ford Global Technologies, Inc. | Vehicle electric power assist steering system and method using angle based torque estimation |
| US20020017422A1 (en) * | 2000-01-12 | 2002-02-14 | Kim Seong Joo | Electric power steering system |
| US20030168276A1 (en) * | 2002-03-05 | 2003-09-11 | Mitsubishi Denki Kabushiki Kaisha | Control apparatus for motor-driven power-steering system of motor vehicle |
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| CN101700786A (en) * | 2009-11-09 | 2010-05-05 | 南京航空航天大学 | Recirculating-ball electric power-assisted steering system with variable transmission ratio for bus and control method thereof |
| CN201951542U (en) * | 2011-02-28 | 2011-08-31 | 上海好易特机械制造有限公司 | Rotatable instrument panel of all-terrain four-wheel entertainment car |
| CN102267487A (en) * | 2011-05-11 | 2011-12-07 | 江苏大学 | Electro-hydraulic power steering system based on vehicle speed and load signal control |
| CN102673637A (en) * | 2012-05-10 | 2012-09-19 | 清华大学 | Electric power-assisted steering system for commercial vehicle |
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2012
- 2012-12-17 CN CN201210549968.0A patent/CN103863387A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20020017422A1 (en) * | 2000-01-12 | 2002-02-14 | Kim Seong Joo | Electric power steering system |
| US6293366B1 (en) * | 2000-02-16 | 2001-09-25 | Ford Global Technologies, Inc. | Vehicle electric power assist steering system and method using angle based torque estimation |
| US20030168276A1 (en) * | 2002-03-05 | 2003-09-11 | Mitsubishi Denki Kabushiki Kaisha | Control apparatus for motor-driven power-steering system of motor vehicle |
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| CN101700786A (en) * | 2009-11-09 | 2010-05-05 | 南京航空航天大学 | Recirculating-ball electric power-assisted steering system with variable transmission ratio for bus and control method thereof |
| CN201951542U (en) * | 2011-02-28 | 2011-08-31 | 上海好易特机械制造有限公司 | Rotatable instrument panel of all-terrain four-wheel entertainment car |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108495770A (en) * | 2016-01-25 | 2018-09-04 | 蒂森克虏伯普利斯坦股份公司 | Steering column with electric steering |
| CN106143587A (en) * | 2016-08-18 | 2016-11-23 | 安徽泗州拖拉机制造有限公司 | The steering control device of a kind of big-powered tractor and control method |
| CN106143587B (en) * | 2016-08-18 | 2019-08-06 | 安徽泗州拖拉机制造有限公司 | A kind of steering control device and control method of big-powered tractor |
| CN111137352A (en) * | 2018-11-02 | 2020-05-12 | 北汽福田汽车股份有限公司 | Steering force control method and device and vehicle |
| CN110481632A (en) * | 2019-07-06 | 2019-11-22 | 清华大学 | A kind of line traffic control independent steering actuating mechanism based on polyphase machine driving |
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Application publication date: 20140618 |
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