CN2913121Y - Connecting equipment for non-contact torque rotary angle sensor and electric power-assisted redirector - Google Patents
Connecting equipment for non-contact torque rotary angle sensor and electric power-assisted redirector Download PDFInfo
- Publication number
- CN2913121Y CN2913121Y CN 200620042242 CN200620042242U CN2913121Y CN 2913121 Y CN2913121 Y CN 2913121Y CN 200620042242 CN200620042242 CN 200620042242 CN 200620042242 U CN200620042242 U CN 200620042242U CN 2913121 Y CN2913121 Y CN 2913121Y
- Authority
- CN
- China
- Prior art keywords
- sensor
- output shaft
- torque
- face
- rotary angle
- Prior art date
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Power Steering Mechanism (AREA)
Abstract
The utility model discloses a connecting device between the contactless torque corner sensor and the electric power-assisted steering gear, the device comprises a contactless torque corner sensor, a steering input shaft, a steering output shaft, a housing of the worm reduction box, a bottom end cover of the sensor, an upper end cover of the sensor, a torsion bar and a nylon pressing sleeve. The rotor of the torque sensor is connected with the input shaft of the steering shaft through the nylon pressing sleeve with the tightly fixing pressure corporately. The stator of the torque sensor, namely, the rotor of the corner sensor and the steering output shaft is also connected with the output shaft of the steering shaft through the nylon pressing sleeve with the tightly fixing pressure corporately. the stator of the corner sensor is fixedly connected with the housing of the worm reduction box through the lower end cover of the sensor, the input shaft and the and output shaft are connected with each other through the torsion bar, an angle limiter is positioned between the torque corner sensor and the output shaft. The utility model has higher accuracy of measurement, higher durability, higher reliability and shorter lagging effect and wider field of application.
Description
Technical field
The utility model relates to the connecting device of a kind of automobile pipe column booster type electric servo steering system (C-EPS) upper sensor, especially a kind of installing and connecting apparatus of contactless torque/rotary angle transmitter.
Background technology
The motor turning performance is one of main performance of automobile; the performance of steering swivel system directly has influence on the road-holding property of automobile, and it plays an important role for the safety traffic of guaranteeing vehicle, the personal safety that reduces traffic accident and protection chaufeur, the service conditions of improving chaufeur.In order to improve turning efficiency, generally adopted power steering system at present: hydraulic power-assist steering system, electric liquid servo steering system, electric boosting steering system (being called for short EPS).Electric boosting steering system because of its energy-conserving and environment-protective, simple in structure, be easy to maintenance, the strong returnability of servo-actuated is good and assist characteristic is easy to advantages such as control, becomes the main flow trend of current automobile steering system.
EPS is a kind of power steering system that auxiliary torque directly is provided by motor.Dissimilar EPS groundworks are identical: torque sensor and steering shaft link together, when steering shaft rotates, torque sensor is started working, the displacement that relatively rotates that input shaft and output shaft are produced under the torsion bar effect becomes electric signal and passes to ECU, EUC has size according to the hand of rotation and the power-assisted electric current of the signal deciding electrical motor of car speed sensor and torque sensor, thereby finishes real-time servo-steering control.Therefore it can be implemented in the speed of a motor vehicle does not at an easy rate provide different power-assisted effects by electrical motor simultaneously, guarantees automobile light and flexible when low speed driving, reliable and stable when running at high speed.Therefore the design of EPS cornering properties has higher degree of freedom.
EPS mainly is made up of torque sensor, car speed sensor, assist motor and speed reduction gearing, ECU control unit.The general power-assisted size of EPS is only relevant with the speed of a motor vehicle, i.e. the speed of a motor vehicle induction type of often saying.But development along with EPS, assist characteristic is more than relevant with the speed of a motor vehicle also relevant with steering wheel angle, so abroad the EPS of some middle and high shelves automobiles has also installed rotary angle transmitter except that torque sensor has been installed, thereby change assist characteristic significantly, improved the traveling comfort that turns to and improved returnability.And the torque sensor of integrated outer corner measurement has become the important component part of EPS.
The function of torque sensor is that the measurement chaufeur acts on moment size and the direction on the steering handwheel, and the size and Orientation of steering wheel angle.These signals all are the control signals of EPS.Torch measuring system more complicated and cost are higher, so accurately, reliably, can torque sensor be one of decision EPS key factor that dominate the market cheaply.Torque sensor is the key sensor of EPS, mainly contains contact and contactless two kinds.
What at present contact was used morely is the potentiometer type torque sensor, contactlessly uses morely to be induction, photo-electric and ultrasonic type torque sensor.The contact cost is lower, but easily drifted about by temperature and effect of attrition, service life is lower, need compromise to accuracy of manufacture and torsion bar rigidity, is difficult to realize the measurement of absolute corner and cireular frequency.And contactless survey precision height, antijamming capability are strong, the measurement of the rigidity absolute corner of higher relatively, easy realization and cireular frequency.
Summary of the invention
The utility model is the connecting device that a kind of contactless torque rotary angle transmitter and electric booster steering device will be provided.Noncontacting proximity sensor in this device is compared with touch sensor, and higher survey precision is arranged, higher durability, higher reliability, shorter lag effect and wider field of application, and have simple in structure, easy-to-install characteristics.
The technical solution of the utility model is: the mounting structure of a kind of contactless torque angle sensor on electric boosting steering system, comprise the contactless torque rotary angle transmitter, turn to input shaft, turn to output shaft, the worm reduction box housing, the sensor bottom end cover, the sensor upper end cover, torsion bar, the nylon gland, the rotor of torque sensor cooperates to be fixed by the nylon gland with the input shaft of steering shaft and is connected, the stator of torque sensor be rotary angle transmitter rotor with turn to output shaft also to cooperate to be fixed to be connected by the nylon gland, the rotary angle transmitter stator is captiveed joint with the worm reduction box housing by the sensor bottom end cover, and input shaft links to each other by torsion bar with output shaft, and it is spacing to be provided with angle between torque angle sensor and the output shaft.
Induction contactless torque rotary angle transmitter, stator and rotor are made by magnetic material, form closed magnetic circuit between stator and the rotor, and rotary angle transmitter stator and torque sensor stator machinery are fixed together.
Angle between torque angle sensor and the output shaft spacing fan-shaped side surface and output shaft upper end rectangular side surface composition by the input shaft bottom.
Nylon gland and input shaft, output shaft, the torque sensor rotor, the cooperation between the torque sensor stator is an interference fit;
Realize cooperating by the elastic deformation of nylon gland claw between the torque sensor rotor, torque sensor stator and nylon gland.
The fan-shaped side D1 of the bottom of input shaft is parallel with face D3, and face D2 is parallel with face D4, and all with respect to the axis symmetry of input shaft; The rectangle sides E1 of the upper end of output shaft and face E4 coplane, face E2 and face E3 coplane, face E1, E4 and face E2, E3 is with respect to the axis symmetry of output shaft.
Input shaft, torsion bar, output shaft are on the same axial line.
The beneficial effects of the utility model are: compare touch sensor, noncontacting proximity sensor has higher survey precision, higher durability (can not wear and tear) because of the time, higher reliability (realization of multiple redundancy), shorter lag effect and wider field of application (can adjust measurement range) according to user's request.Therefore the EPS of equipped with non-contact sensor has higher reliability, durability etc.Because the utility model is on the physical construction basis of existing electric booster steering device, to improving with the relevant assembling interface of torque sensor, therefore, have simple in structure, easy-to-install characteristics.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is 1 A-A cutaway view;
Fig. 3 is the inhibiting device cutaway view;
Fig. 4 is a nylon gland open end front elevation;
Fig. 5 is the cutaway view of bowing of Fig. 4.
The specific embodiment
The utility model will be further described below in conjunction with accompanying drawing and embodiment.
As shown in Figure 1, the mounting structure of a kind of contactless torque angle sensor on electric boosting steering system, by the contactless torque rotary angle transmitter, turn to input shaft 1, turn to output shaft 11, worm reduction box housing 8, sensor bottom end cover 4, sensor upper end cover 3, torsion bar 9, nylon gland 6, nylon gland 15 formations such as grade.
The rotor 14 of torque sensor is fixed by nylon gland 15 with the input shaft 1 of steering shaft and is connected, and the stator 13 of torque sensor is that the rotor 12 of rotary angle transmitter is also captiveed joint by nylon gland 6 force fit with turning to output shaft 11.
Wherein, nylon gland 6,15 structure is (as Fig. 4, shown in 5), face G respectively with input shaft 1 or 11 interference fit of output shaft, and the rotor 14 of the face F portion of nylon gland 15,6 and torque sensor and stator 13 also adopt interference fit, because face F portion is cut into four pawl types, interference fit is mainly finished by the elastic deformation of face F portion, because also in the dismounting and the installation of sensor.
When turning to, chaufeur direction of passage dish input torque, torsion bar 9 distortion, cause that input shaft 1 and output shaft 11 relative positions change, thereby the respective change of magnetic flow between the rotor 14 of drive torque sensor and the stator 13, if the logical alternating current of going up of coil, the end of coil is pressed the change of the influence coefficient that causes along with moment of torsion and is changed, and changes thereby can measure corresponding torque.Chaufeur is by turning to input shaft 1, torsion bar 9 transfer torques to turning to output shaft 11, turn to output shaft 11 to rotate thereby drive, turning to output shaft 11 to drive the rotary angle transmitter rotor is that torque sensor stator 13 relative rotation sensors 12 rotate, cause the respective change of magnetic flow between rotary angle transmitter rotor 1 and the rotary angle transmitter stator 12, the coil indirect current, the end of coil is being pressed at any time the change of the influence coefficient that angle causes and is being changed, and changes thereby can measure corresponding absolute angle.
Turn to the fan-shaped side surface of input shaft 1 bottom and the spacing angle that the angle between rectangular side surface, output shaft 11 upper end is torque sensor.
The inhibiting device of torque angle sensor (as Fig. 2, shown in Figure 3).In Fig. 3, turn to the fan-shaped side D1 of input shaft 1 bottom parallel with face D3, face D2 is parallel with face D4; Output shaft 11 upper end rectangle sides E1 and E4 coplanes, face E2 and face E3 coplane.Angle between face D1/ face E1, face D2/ face E2, face D3/ face E3, face D4/ face E4 is identical, and is the spacing angle of permission of torque sensor.To guarantee during installation that input shaft 1, torsion bar 9 and output shaft 11 are coaxial.Face D1 and face D3, face D2 and face D4, face E1E4 and face E2E3 are all with respect to the axis symmetry of input shaft 1 and output shaft 11.
When torsion bar 9 was out of shape in allowing spacing angular range, input shaft 1 passed to output shaft 11 by torsion bar 9 with moment of torsion; Torsion bar 9 distortion that cause when moment of torsion exceed when allowing spacing angular range, face D1/ face E1, face D3/ face E3 (or face D2/ face E2, face D4/ face E4) contact, promptly turn to the fan-shaped side surface of input shaft 1 bottom to contact with the rectangular side surface of output shaft 11 upper ends, input shaft 1 directly passes to output shaft 11 by the surface of end face with moment of torsion.
Noncontacting proximity sensor corner detection range 3 circles that the utility model adopted, no to scale will be damaged sensor; Torque sensor will be demarcated its zero-bit when mounted simultaneously, therefore will pay special attention to installation method and sequence of erection when mounted.Its concrete installation steps are as follows:
(1) torsion bar 9 is pressed into turns to input shaft 1, and carry out the detection and the adjustment of right alignment;
(2) copper sheathing 5 is located turning on the output shaft, and the other end and the output shaft 11 of torsion bar 9 assembled, adjust the right alignment of input shaft 1, torsion bar 9 and output shaft 11, after satisfying the requirement of right alignment, adjust that angle equates between input shaft 1 and output shaft 11 each confined planes, join the brill cylinder pin hole, and straight pin 10 is installed;
(3) worm gear is fitted on the output shaft 11, and input shaft 1/ output shaft 11 that turns to that will be equipped with worm gear is located in worm reduction box housing 8;
(4) back-up ring 7 is installed in output shaft 11 shaft shoulder places, sensor bottom end cover 4 and worm reduction box housing 8 is assembled together with bolt;
(5) nylon gland 6 is installed in turns on the output shaft 11, guarantee that its end face is concordant with back-up ring 7 end faces;
(6) rotary angle transmitter stator 12 is mounted together when sensor dispatches from the factory with torque sensor stator 13, inseparable, therefore this step is with while installing angle sensor stator 12 and torque sensor stator 13, at first the semicircle muscle B on the rotary angle transmitter stator 12 is embedded in the half slot of sensor bottom end cover 4, then rotary angle transmitter stator 12 is fixing by semicircle muscle B and sensor bottom end cover 4, little upper surface of firmly depressing torque sensor stator 13, make its upper surface concordant, represent that promptly torque sensor stator 13 is fixing by nylon gland 6 with sensor bottom end cover 4;
(7) mounting torque rotor sensor 14 to input shaft 1 shaft shoulder is fixed, and with sensor energize, and with two-way torque signal introducing oscp, rotary torque rotor sensor 14 overlaps the two-way torque signal, and be the zero point of torque sensor this moment;
(8) nylon gland 15, the rotor 14 of even twisting moment sensor are installed;
(9) mounting bracket 2 and sensor upper end cover 3 and sensor bottom end cover 4 usefulness Bolt Connection are in the same place;
(10) after sensor installs, when the steering column telescopic tube is installed, need contactless torque/rotary angle transmitter is carried out the angle Zero positioning.Calibration method is as follows: turns to input shaft 1 to either direction, (promptly feels rotation effort slightly) to its interior angle mechanical position limitation place, and then contrarotation 1.5 circles, this position can be decided to be the angle zero-bit of rotary angle transmitter.Rotary angle transmitter can be defined as any point electric signal zero point, carries out the angle zeroing this moment just in order in use not destroy the angle mechanical position limitation of sensor internal, so approximate zeroing this moment does not need very accurate.
Claims (7)
1. the connecting device of contactless torque rotary angle transmitter and electric booster steering device, comprise the contactless torque rotary angle transmitter, turn to input shaft (1), turn to output shaft (11), worm reduction box housing (8), sensor bottom end cover (4), sensor upper end cover (3), it is characterized in that, also comprise torsion bar (9), nylon gland (6), nylon gland (15), the rotor of torque sensor (14) is captiveed joint by nylon gland (15) force fit with the input shaft (1) of steering shaft, the stator of torque sensor (13) is that the rotor (12) of rotary angle transmitter is captiveed joint by nylon gland (6) force fit with turning to output shaft (11), rotary angle transmitter stator (12) is captiveed joint with worm reduction box housing (8) by sensor bottom end cover (4), and input shaft (1) links to each other by torsion bar (9) with output shaft (11), and it is spacing to be provided with angle between torque angle sensor and the output shaft (11).
2. the connecting device of contactless torque rotary angle transmitter according to claim 1 and electric booster steering device, it is characterized in that, stator and rotor in the described contactless torque rotary angle transmitter are made by magnetic material, form closed magnetic circuit between stator and the rotor; Rotary angle transmitter stator (12) is captiveed joint with torque sensor stator (13).
3. the connecting device of contactless torque rotary angle transmitter according to claim 1 and electric booster steering device, it is characterized in that the angle between described torque angle sensor and the output shaft (11) spacing fan-shaped side surface and output shaft (11) upper end rectangular side surface composition by input shaft (1) bottom.
4. the connecting device of contactless torque rotary angle transmitter according to claim 1 and electric booster steering device, it is characterized in that, described nylon gland (6,15) with input shaft (1), output shaft (11), torque sensor rotor (14), the cooperation between the torque sensor stator (13) is an interference fit.
5. the mounting structure of contactless torque angle sensor according to claim 1 on electric boosting steering system is characterized in that, described input shaft (1), torsion bar (9), output shaft (11) are on the same axial line.
6. according to the connecting device of claim 1 or 3 described contactless torque rotary angle transmitters and electric booster steering device, it is characterized in that, the fan-shaped side (D1) of the bottom of described input shaft (1) is parallel with face (D3), face (D2) is parallel with face (D4), and all with respect to the axis symmetry of input shaft (1); The rectangle sides (E1) of the upper end of output shaft (11) and face (E4) coplane, face (E2) and face (E3) coplane, face (E1, E4) and face (E2 is E3) with respect to the axis symmetry of output shaft.
7. the connecting device of contactless torque rotary angle transmitter according to claim 4 and electric booster steering device, it is characterized in that, described torque sensor rotor (14) is realized cooperating by the elastic deformation of nylon gland claw between torque sensor stator (13) and the nylon gland (15,6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620042242 CN2913121Y (en) | 2006-05-30 | 2006-05-30 | Connecting equipment for non-contact torque rotary angle sensor and electric power-assisted redirector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620042242 CN2913121Y (en) | 2006-05-30 | 2006-05-30 | Connecting equipment for non-contact torque rotary angle sensor and electric power-assisted redirector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2913121Y true CN2913121Y (en) | 2007-06-20 |
Family
ID=38167719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620042242 Expired - Lifetime CN2913121Y (en) | 2006-05-30 | 2006-05-30 | Connecting equipment for non-contact torque rotary angle sensor and electric power-assisted redirector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2913121Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102730053A (en) * | 2011-03-29 | 2012-10-17 | 光阳工业股份有限公司 | All-terrain vehicle electronic steering device with limit function |
| CN103085874A (en) * | 2011-11-08 | 2013-05-08 | 株式会社捷太格特 | Torque detection device and electric power steering apparatus |
| CN104157179A (en) * | 2014-08-22 | 2014-11-19 | 吉林大学 | Force sensing analog system based on C-EPS structure |
| CN104210531A (en) * | 2013-05-28 | 2014-12-17 | Zf操作***有限公司 | Steering transmission device with torsion bar structure, steering system provided with the same, and installation method |
| CN106768533A (en) * | 2017-03-21 | 2017-05-31 | 西华大学 | Convenient steering wheel corner torque tester |
-
2006
- 2006-05-30 CN CN 200620042242 patent/CN2913121Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102730053A (en) * | 2011-03-29 | 2012-10-17 | 光阳工业股份有限公司 | All-terrain vehicle electronic steering device with limit function |
| CN102730053B (en) * | 2011-03-29 | 2016-08-03 | 光阳工业股份有限公司 | The all-terrain vehicle electronic steering device of tool limit function |
| CN103085874A (en) * | 2011-11-08 | 2013-05-08 | 株式会社捷太格特 | Torque detection device and electric power steering apparatus |
| CN103085874B (en) * | 2011-11-08 | 2016-08-31 | 株式会社捷太格特 | Torque master and driven steering device |
| CN104210531A (en) * | 2013-05-28 | 2014-12-17 | Zf操作***有限公司 | Steering transmission device with torsion bar structure, steering system provided with the same, and installation method |
| CN104157179A (en) * | 2014-08-22 | 2014-11-19 | 吉林大学 | Force sensing analog system based on C-EPS structure |
| CN106768533A (en) * | 2017-03-21 | 2017-05-31 | 西华大学 | Convenient steering wheel corner torque tester |
| CN106768533B (en) * | 2017-03-21 | 2023-03-14 | 西华大学 | Convenient steering wheel corner torque tester |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100554064C (en) | The mounting structure of contactless torque angle sensor on electric boosting steering system | |
| CN101450677B (en) | Motor push rod type power-assisted steering apparatus | |
| US7637347B2 (en) | Electric power steering apparatus equipped with steering angle sensor | |
| CN2913121Y (en) | Connecting equipment for non-contact torque rotary angle sensor and electric power-assisted redirector | |
| KR101128608B1 (en) | The Torque Angle Sensor and The Electronic Power Steering Apparatus Having The Same | |
| US8000860B2 (en) | Steering angle sensor | |
| US20030000765A1 (en) | Precision electro-hydraulic actuator positioning system | |
| EP2019020A2 (en) | Power steering apparatus having failure detection device for rotation angle sensors | |
| CA2398559A1 (en) | Precision electro-hydraulic actuator positioning system | |
| KR20070078303A (en) | Electric power steering apparatus equipped with steering angle sensor | |
| CN103359161A (en) | Vehicle steer-by-wire steering wheel device | |
| CN102632921B (en) | Electric drive pusher type steering system controlled by coupling force and displacement and control method | |
| CN103528601A (en) | Non-contact compound torque and angle position sensor | |
| CN202243633U (en) | Electric steering device with automatic aligning function for automobile | |
| CN210555103U (en) | Motor-driven composite steer-by-wire system of passenger vehicle | |
| CN203345019U (en) | Vehicle drive-by-wire steering wheel device | |
| WO2016116742A1 (en) | Improvements in torque sensors | |
| KR101208178B1 (en) | Electronic power steering apparatus having torque sensor | |
| EP1905672B1 (en) | Electric power steering system | |
| US20020079156A1 (en) | Hall effect torque sensor | |
| CN102530051B (en) | Tubular column type electric power steering column employing novel torque sensor | |
| CN201002638Y (en) | Electric booster steering device for automobile | |
| KR102327340B1 (en) | Steering Column for Vehicle | |
| CN104071216B (en) | Automobile electric booster steering system | |
| CN2929648Y (en) | Capacitance type relative angle sensor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20091028 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |