CN204452578U - A kind of pure electric automobile servo steering system - Google Patents
A kind of pure electric automobile servo steering system Download PDFInfo
- Publication number
- CN204452578U CN204452578U CN201520121336.3U CN201520121336U CN204452578U CN 204452578 U CN204452578 U CN 204452578U CN 201520121336 U CN201520121336 U CN 201520121336U CN 204452578 U CN204452578 U CN 204452578U
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- adaptor union
- steering system
- controller
- sensor
- direct current
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Abstract
The utility model discloses a kind of pure electric automobile servo steering system, comprise bearing circle, rotating shaft, be positioned at and rotating shaft turns to torque sensor, the turbine screw deceleration mechanism be connected with rotating shaft lower end, circulating ball type mechanical steering system, controller, the direct current assist motor be electrically connected with controller output end, the connecting device of connection control device and direct current assist motor, the car speed sensor be electrically connected with controller input end and engine speed sensor, described direct current assist motor is provided with the motor current sensor and electric moter voltage sensor that are electrically connected with controller input end, described connecting device comprises the first adaptor union, second adaptor union and the heart yearn for connecting the first adaptor union and the second adaptor union.The utility model effectively improves driving efficiency, reduces rotator inertia, and stable drive is reliable, improves portability when turning to and stationarity, synchronous signal transmission stability and accuracy is high, production efficiency improves, more convenient operation.
Description
Technical field
The utility model relates to motor turning field, specifically a kind of pure electric automobile servo steering system.
Background technology
In running car, divertical motion is the most basic motion.We handle and control the travel direction of automobile by bearing circle, thus realize the traveling intention of oneself.On modern automobile, steering swivel system is absolutely necessary one of the most basic system, and it is also the crucial assembly determining vehicle active safety.How the cornering properties of design vehicle, makes automobile have good maneuvering performance, all the time the important topic of Shi Ge auto vendor and scientific research institution.Particularly in today of High Speed of Rolling Stock, navigating mate deprofessionaliztion, wagon flow densification, for more how different driving population, the controllability design of automobile seems particularly important.Along with the use of non-renewable oil resources, electronlmobil has become the vehicle that masses use gradually, and automobile steering system is the critical component of vehicle, is directly connected to the road-holding property of car load, stability and safety.For alleviating chaufeur burden, general employing electric boosting steering system carrys out assisted diversion device and turns to.Along with the continuous progress of society, more next high to the performance requriements of car, the hand-held design especially turned to, when turning to light automobile to drive, feel is strong, improves the satisfaction of user.
At electric boosting steering system (Electric Power Steering, be called for short EPS) in, servo steering system connecting device as its signal transmission and instruction have also been obtained constantly perfect and development, and servo steering system connecting device of the prior art exists following defect usually: 1, the water-proof function of connecting device is poor; 2, connect wire easily wear and tear and be subject to extraneous chemical corrosion.
Utility model content
The purpose of this utility model is to provide a kind of pure electric automobile servo steering system, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme:
A kind of pure electric automobile servo steering system, comprise bearing circle, the rotating shaft be connected with bearing circle, be positioned at and rotating shaft turns to torque sensor, the turbine screw deceleration mechanism be connected with rotating shaft lower end, circulating ball type mechanical steering system, controller, the direct current assist motor be electrically connected with controller output end, the connecting device of connection control device and direct current assist motor, the car speed sensor be electrically connected with controller input end and engine speed sensor, described direct current assist motor is provided with the motor current sensor and electric moter voltage sensor that are electrically connected with controller input end, described connecting device comprises the first adaptor union, second adaptor union and the heart yearn for connecting the first adaptor union and the second adaptor union, described first adaptor union is connected with direct current assist motor, described second adaptor union is connected with controller, the outside of described heart yearn is arranged with bellows, the junction of described first adaptor union and servo-steering electric machine is provided with sealing fixture, the junction of described second adaptor union and electronic control unit is provided with water proof glue, described water proof glue is nano-silicon water proof glue, described sealing fixture is waterproof plug, described turbine screw deceleration mechanism comprises the screw rod be connected with rotating shaft lower end, rack tooth is fanned, be arranged at screw rod threaded upper ends position, outside face is provided with the nut fanning the tooth bar that matches with rack tooth, be located at the turbine screw deceleration device of screw rod lower end, turbine screw deceleration device is fixedly connected with the rotor of direct current assist motor, the tooth bar that nut and rack tooth are fanned engages and is connected, described circulating ball type manual steering system turnkey draws together steering side tube and tierod, the top of steering side tube is movably connected on rack tooth fan, bottom is connected with the middle part of tierod, the two ends of tierod are connected with wheel, also comprise and be electrically connected steering angle sensor with controller.
As further program of the utility model: described steering angle sensor is arranged on bearing circle or in rotating shaft.
As the utility model further scheme: be provided with fixed link in the middle of described tierod, steering side tube is fixedly connected with the midway location of fixed link, the two ends of fixed link are all connected with one end of long connecting rod, the other end activity chain of long connecting rod is connected to one end of short connecting rod, the other end of short connecting rod is movably connected on second short connecting rod, and the other end of second short connecting rod is fixedly connected on wheel.
As the utility model further scheme: the transmitting ratio of described turbine screw deceleration mechanism is 10 ~ 18.
As the utility model further scheme: described direct current assist motor is provided with angular velocity sensor, and angular velocity sensor is electrically connected with controller.
Compared with prior art, the beneficial effects of the utility model are: the utility model is by adopting turbine screw speed reduction gearing, structure is simple, transmitting ratio is large and realize bidirectional reversible transmission, effectively can improve driving efficiency, reduce rotator inertia, stable drive is reliable, thus the portability improved when being turned to by bearing circle control and stationarity; And by arranging torque sensor, electric moter voltage sensor, motor current sensor and car speed sensor, engine speed sensor, thus comprehensive each sensing data regulates car power-assisted size, ensure the particularity regulated, improve the control of ease of steering; Adopt that air pressure resistance intensity is high simultaneously, the more stable and connecting device that is easily controlled, minimizing labour intensity of stable signal transmission and high, the good water-proofness of accuracy and stability, production efficiency raisings, more convenient operation, process, make this system more practical.
Accompanying drawing explanation
Fig. 1 is the structural representation of pure electric automobile servo steering system;
Fig. 2 is connecting device structural representation in pure electric automobile servo steering system;
Fig. 3 is the operating diagram of pure electric automobile servo steering system middle controller;
In figure: A-connecting device, 1-bearing circle, 2-rotating shaft, 3-turns to torque sensor, 4-controller, 5-direct current assist motor, 6-car speed sensor, 7-engine speed sensor, 8-motor current sensor, 9-electric moter voltage sensor, 10-screw rod, 11-rack tooth is fanned, 12-nut, 13-turbine screw deceleration device, 14-steering side tube, 15-tierod, 16-wheel, 17-steering angle sensor, 18-fixed link, 19-long connecting rod, 20-short connecting rod, 21-angular velocity sensor, 22-first adaptor union, 23-second adaptor union, 24-heart yearn, 25-bellows, 26-sealing fixture, 27-water proof glue.
Detailed description of the invention
Be described in more detail below in conjunction with the technical scheme of detailed description of the invention to this patent.
Refer to Fig. 1 and Fig. 2, a kind of pure electric automobile servo steering system, comprises bearing circle 1, the rotating shaft 2 be connected with bearing circle 1, is positioned at rotating shaft 2 turns to torque sensor 3, the turbine screw deceleration mechanism be connected with rotating shaft 2 lower end, circulating ball type mechanical steering system, controller 4, the direct current assist motor 5 be electrically connected with controller 4 mouth, connection control device 4 and the connecting device A of direct current assist motor 5, the car speed sensor 6 be electrically connected with controller 4 input end and engine speed sensor 7; Described direct current assist motor 5 is provided with the motor current sensor 8 and electric moter voltage sensor 9 that are electrically connected with controller 4 input end, described connecting device A first adaptor union 22, second adaptor union 23 and the heart yearn 24 for connecting the first adaptor union 22 and the second adaptor union 23, described first adaptor union 22 is connected with direct current assist motor 5, described second adaptor union 23 is connected with controller 4, the outside of described heart yearn 24 is arranged with bellows 25, the setting of described bellows 25 can prevent heart yearn from wearing and tearing, and can resist extraneous chemical corrosion.Described first adaptor union 22 is provided with sealing fixture 26 with the junction of servo-steering electric machine, and described second adaptor union 2 is provided with water proof glue 27 with the junction of electronic control unit, and in the present embodiment, described water proof glue 27 is nano-silicon water proof glue.Adopt automatic glue filling machine to its encapsulating during encapsulating, achieve the white automation of encapsulating, ensure that stability and the reliability of process for filling colloid, described sealing fixture 26 is waterproof plug.Described turbine screw deceleration mechanism comprises the screw rod 10 be connected with rotating shaft 2 lower end, rack tooth fan 11, be arranged at screw rod 10 threaded upper ends position, outside face is provided with to fan 11 nuts 12 matching tooth bar with rack tooth, be located at the turbine screw deceleration device 13 of screw rod 10 lower end, turbine screw deceleration device 13 is fixedly connected with the rotor of direct current assist motor 5, the tooth bar that nut 12 and rack tooth fan 11 engages and is connected, described circulating ball type manual steering system turnkey draws together steering side tube 14 and tierod 15, the top of steering side tube 14 is movably connected on rack tooth fan 11, bottom is connected with the middle part of tierod 15, the two ends of tierod 15 are connected with wheel 16.Also comprise and be electrically connected steering angle sensor 17 with controller 4, described steering angle sensor 17 is arranged on bearing circle 1 or in rotating shaft 2.Fixed link 18 is provided with in the middle of described tierod 15, steering side tube 14 is fixedly connected with the midway location of fixed link 18, the two ends of fixed link 18 are all connected with one end of long connecting rod 19, the other end activity chain of long connecting rod 19 is connected to one end of short connecting rod 20, the other end that the other end of short connecting rod 20 is movably connected on second short connecting rod, 20, second short connecting rod 20 is fixedly connected on wheel 16.The transmitting ratio of described turbine screw deceleration mechanism is 10 ~ 18.Described direct current assist motor 5 is provided with angular velocity sensor 21, and angular velocity sensor 21 is electrically connected with controller 4.
Refer to Fig. 3, during motor turning, controller carries out Power assisted control according to steering-wheel torque signal, and steering-wheel torque is larger, and motor power-assisted square is larger; Steering-wheel torque is less, and motor power-assisted square is less.When steering-wheel torque is less than a certain setting torque, motor does not carry out power-assisted.Meanwhile, controller carries out road feel control according to the signal of car speed sensor, and when the speed of a motor vehicle raises, suitably reduce motor power-assisted, road feel strengthens, and while energy-conservation, ensures the hand-held design turned to.
Above the better embodiment of this patent is explained in detail, but this patent is not limited to above-mentioned embodiment, in the ken that one skilled in the relevant art possesses, can also makes a variety of changes under the prerequisite not departing from this patent aim.
Claims (5)
1. a pure electric automobile servo steering system, comprise bearing circle, the rotating shaft be connected with bearing circle, be positioned at and rotating shaft turns to torque sensor, the turbine screw deceleration mechanism be connected with rotating shaft lower end, circulating ball type mechanical steering system, controller, the direct current assist motor be electrically connected with controller output end, the connecting device of connection control device and direct current assist motor, the car speed sensor be electrically connected with controller input end and engine speed sensor, it is characterized in that, described direct current assist motor is provided with the motor current sensor and electric moter voltage sensor that are electrically connected with controller input end, described connecting device comprises the first adaptor union, second adaptor union and the heart yearn for connecting the first adaptor union and the second adaptor union, described first adaptor union is connected with direct current assist motor, described second adaptor union is connected with controller, the outside of described heart yearn is arranged with bellows, the junction of described first adaptor union and servo-steering electric machine is provided with sealing fixture, the junction of described second adaptor union and electronic control unit is provided with water proof glue, described water proof glue is nano-silicon water proof glue, described sealing fixture is waterproof plug, described turbine screw deceleration mechanism comprises the screw rod be connected with rotating shaft lower end, rack tooth is fanned, be arranged at screw rod threaded upper ends position, outside face is provided with the nut fanning the tooth bar that matches with rack tooth, be located at the turbine screw deceleration device of screw rod lower end, turbine screw deceleration device is fixedly connected with the rotor of direct current assist motor, the tooth bar that nut and rack tooth are fanned engages and is connected, described circulating ball type manual steering system turnkey draws together steering side tube and tierod, the top of steering side tube is movably connected on rack tooth fan, bottom is connected with the middle part of tierod, the two ends of tierod are connected with wheel, also comprise and be electrically connected steering angle sensor with controller.
2. a kind of pure electric automobile servo steering system according to claim 1, it is characterized in that, described steering angle sensor is arranged on bearing circle or in rotating shaft.
3. a kind of pure electric automobile servo steering system according to claim 1 and 2, it is characterized in that, fixed link is provided with in the middle of described tierod, steering side tube is fixedly connected with the midway location of fixed link, the two ends of fixed link are all connected with one end of long connecting rod, the other end activity chain of long connecting rod is connected to one end of short connecting rod, and the other end of short connecting rod is movably connected on second short connecting rod, and the other end of second short connecting rod is fixedly connected on wheel.
4. a kind of pure electric automobile servo steering system according to claim 3, is characterized in that, the transmitting ratio of described turbine screw deceleration mechanism is 10 ~ 18.
5. a kind of pure electric automobile servo steering system according to claim 1 or 2 or 4, is characterized in that, described direct current assist motor is provided with angular velocity sensor, and angular velocity sensor is electrically connected with controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520121336.3U CN204452578U (en) | 2015-03-02 | 2015-03-02 | A kind of pure electric automobile servo steering system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520121336.3U CN204452578U (en) | 2015-03-02 | 2015-03-02 | A kind of pure electric automobile servo steering system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204452578U true CN204452578U (en) | 2015-07-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520121336.3U Expired - Fee Related CN204452578U (en) | 2015-03-02 | 2015-03-02 | A kind of pure electric automobile servo steering system |
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| Country | Link |
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| CN (1) | CN204452578U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106938661A (en) * | 2017-02-09 | 2017-07-11 | 浙江吉利汽车研究院有限公司 | A kind of hardware and software platform electric boosting steering system |
| CN112477977A (en) * | 2019-09-12 | 2021-03-12 | 比亚迪股份有限公司 | Vehicle power-assisted steering device and control method thereof |
| WO2023273643A1 (en) * | 2021-06-30 | 2023-01-05 | 南京航空航天大学 | Multifunctional electric circulating ball steering system for commercial vehicle, and control method therefor |
-
2015
- 2015-03-02 CN CN201520121336.3U patent/CN204452578U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106938661A (en) * | 2017-02-09 | 2017-07-11 | 浙江吉利汽车研究院有限公司 | A kind of hardware and software platform electric boosting steering system |
| CN112477977A (en) * | 2019-09-12 | 2021-03-12 | 比亚迪股份有限公司 | Vehicle power-assisted steering device and control method thereof |
| WO2023273643A1 (en) * | 2021-06-30 | 2023-01-05 | 南京航空航天大学 | Multifunctional electric circulating ball steering system for commercial vehicle, and control method therefor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150708 Termination date: 20160302 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |