CN203427881U - Turn angle detection device used for measuring turn angle of automobile steering wheel - Google Patents
Turn angle detection device used for measuring turn angle of automobile steering wheel Download PDFInfo
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- CN203427881U CN203427881U CN201320413074.9U CN201320413074U CN203427881U CN 203427881 U CN203427881 U CN 203427881U CN 201320413074 U CN201320413074 U CN 201320413074U CN 203427881 U CN203427881 U CN 203427881U
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Abstract
The utility model relates to a turn angle detection device used for measuring the turn angle of an automobile steering wheel. The turn angle detection device comprises a turn angle sensor and an angle displacement sensor detector, wherein the steering wheel and a shaft are mounted at the upper end of a steering column, the turn angle sensor and the steering column are locked through a binding belt, the circular shaft part of the steering column and the shaft end of the turn angle sensor are respectively provided with a groove, the binding belt is embedded into the grooves, the axis of the steering column and the axis of the turn angle sensor are in parallel, and therefore the turn angle of the steering column can be in synchronization with the turn angle of the shaft end of the sensor; the angle displacement sensor detector is arranged in the other end of the turn angle sensor, and the signal output end of the angle displacement sensor detector is connected with the signal input end of an electronic control unit, wherein the angle displacement sensor detector receives a steering wheel rotation angle signal output by the turn angle sensor and converts the steering wheel rotation angle signal into an electric signal. The turn angle detection device used for measuring the turn angle of the automobile steering wheel is simple in structure, capable of measuring the turn angle of the steering wheel accurately, and convenient to install and adjust.
Description
Technical field
The utility model relates to detecting device technical field, especially relates to a kind of rotation angle detecting apparatus for measured automobiles steering wheel angle.
Background technology
The steering wheel angle sensor of automobile is generally arranged on the steering shaft of steering-column tube, when chaufeur steering wheel rotation drives steering shaft to rotate, steering wheel angle sensor senses the direction of steering shaft rotation and the angle of rotation, as electric boosting steering system (Electric Power Steering, EPS) (the Electronic Control Unit of the electronic control unit in, ECU) one of incoming signal, ECU obtains the size and Orientation of required power-assisted according to torque and the vehicle speed signal of input by rational arithmetic, and transmit control signal to electrical motor, electrical motor is exported corresponding torque according to control signal, and be delivered to tierod via speed reduction gearing and rack-and-gear, complete servo-steering.
Current, the bearing circle detecting sensor of automobile mainly contains photoelectric encoder, Hall element and other magneticss etc., complicated for the test monitoring device design of automobile electric power-assisted steering.
Bearing circle detecting sensor, by the way of contact, is divided into contact and contactless.
The advantage of the bearing circle detecting sensor of contact is that cost is lower, shortcoming has a lot, comprise: easily temperature influence, easy to wear, easily drift about, service life is lower, need to compromise to accuracy of manufacture and torsion bar rigidity, definitely the measuring accuracy of corner and cireular frequency is not high.
The advantage of contactless bearing circle detecting sensor comprises: survey precision is high, rigidity is relatively high, antijamming capability by force, is easily realized the measurement of absolute corner and cireular frequency; But expensive.
Steering wheel angle sensor, according to the difference of output signal and application mode, can be divided into absolute value rotary angle transmitter and relative value rotary angle transmitter, and different sensors is corresponding different Signal coding mode and decoding processes also.
Absolute value rotary angle transmitter can direction of measurement dish absolute rotation angle, and the ECU that directly absolute rotation angle is outputed to EPS is used.But this sensor is restricted on installing space, meanwhile, involving great expense of this sensor, is about 4-5 times of relative value rotary angle transmitter; Signal processing circuit is more complicated also, and these have all hindered the widespread use of absolute value rotary angle transmitter.Electric resistance partial pressure type absolute value rotary angle transmitter belongs to touch sensor, and in the mutual motion process of wipe contact and resistor, the two can produce skimming wear, has reduced the service life of sensor.
Relative value rotary angle transmitter has multiple, for example: have photoelectric induction type sensor, electromagnetic sensor, and the pure sensor being comprised of circuit component.The shortcoming of photoelectric induction type sensor is: in some application aspect, optics and electronics package price are more expensive, and the environmental conditions of measuring is had to very high requirement.The electronic unit that electromagnetic sensor is many because inside has, therefore, electromagnetic sensor is more responsive for temperature, maximum operating temperature is generally no more than 125 ℃, meanwhile, due to the existence of permanent magnet, external magnetic field may impact this sensor.The shortcoming of the pure sensor being comprised of circuit component is expensive, and meanwhile, the existence due to a large amount of electronic units, is also easily subject to electromagnetic interference.
Along with EPS system be equipped with on vehicle at home constantly universal, the demand of steering wheel angle sensor is by increasing.At present, steering wheel angle sensor is faced with and reduces costs, and improves many-sided requirement of service life and reliability, and sensor technology need to be updated, to meet these more and more higher operatings needs.
Summary of the invention
In order to solve the problems of the technologies described above, the utility model provides a kind of rotation angle detecting apparatus for measured automobiles steering wheel angle, solves the structural approach challenge of the detecting device existence of current automotive steering angle.
For achieving the above object, the utility model adopts following technical scheme, and a kind of rotation angle detecting apparatus for measured automobiles steering wheel angle, comprising: rotary angle transmitter and angle displacement sensor detector; Wherein, bearing circle and axle dress are arranged on the upper end of Steering gear, rotary angle transmitter and Steering gear are locked by band, the circular shaft part of Steering gear and the axle head of rotary angle transmitter are all fluted, band is embedded into groove, and the axis of Steering gear and rotary angle transmitter is parallel, make like this Steering gear corner and sensor axle head corner synchronous; Angle displacement sensor detector is arranged in the other end of rotary angle transmitter, and angle displacement sensor detector signal output part is connected with the signal input part of electronic control unit, wherein, angle displacement sensor detector receives the bearing circle rotary angle signal of rotary angle transmitter output, and converts bearing circle rotary angle signal to electric signal.
Compared with prior art, the beneficial effects of the utility model are: simple in structure, can Measurement accuracy steering wheel angle, and by the current angle value of communication bus outbound course dish, install easy to adjust.
Accompanying drawing explanation
Fig. 1 is the structural representation of the rotation angle detecting apparatus for measured automobiles steering wheel angle of the present utility model;
Fig. 2 is the fixed installation schematic diagram of the utility model angular transducer.
1, bearing circle, 2, Steering gear, 3, band, 4, rotary angle transmitter, 5, angle displacement sensor detector, 6, travel(l)ing rest, 7, catch gear, 8, fixed support
The specific embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present utility model is described in further detail.Following examples are used for illustrating the present invention, but are not used for limiting scope of the present utility model.
The present embodiment is for the rotation angle detecting apparatus of the stay-supported of measured automobiles steering wheel angle, as shown in Figure 1, bearing circle 1 and axle dress are arranged on Steering gear 2 upper ends, the circular shaft part of Steering gear 2 and the axle head of rotary angle transmitter 4 all offer groove, band 3 is embedded into this groove, and by Steering gear 2 and rotary angle transmitter 4 lockings, in addition, in installation process, need to keep Steering gear 2 parallel with the axis of rotary angle transmitter 4, make Steering gear corner and sensor axle head corner synchronous, realize steering wheel angle to the accurate transfer of rotary angle transmitter.
Above-mentioned rotation angle detecting apparatus also comprises angle displacement sensor detector 5, angle displacement sensor detector is arranged in the other end of rotary angle transmitter, and angle displacement sensor detector signal output part can be connected with the signal input part of electronic control unit, angle displacement sensor detector 5 receives the bearing circle rotary angle signal of rotary angle transmitter 4 outputs, and converts bearing circle rotary angle signal to electric signal.Two Shaft angles that band 3 connects can be realized the real-time synchronization transmission of corner, the maximum angle of the left and right of two Shaft angles that band 3 connects can be 720 degree, from 360 the most left degree (can think for-360 degree) to 360 the rightest degree) (can think to be 360 degree); Angle displacement sensor detector changes to the angle value between 360 degree-360 degree that receive into corresponding magnitude of voltage output, for EPS turning test, analyzes.
As shown in Figure 2, above-mentioned rotation angle detecting apparatus also comprises: the base portion of fixed support 8 and rotary angle transmitter 4 is bolted fixing, between travel(l)ing rest 6 and fixed support 8, by catch gear 7, connect, and catch gear 7 can be used in after travel(l)ing rest 6 installations are fixing, locking travel(l)ing rest 6 and fixed support 8.On travel(l)ing rest 6, transverse plane offers tapped bore, and for the fixed installation with supporting structure, travel(l)ing rest 6 can rotate to an angle around fixed support 8, realizes fixing alerting ability is installed.
Above-described embodiment is of the present utility model a kind of preferably for the scheme of EPS test, for equipping the experimental investigation of the Light-duty Vehicle of EPS, can accurately obtain steering wheel angle rotation situation.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the technology of the present invention principle; can also make some improvement and modification, these improve and modification also should be considered as protection scope of the present invention.
Claims (4)
1. for a rotation angle detecting apparatus for measured automobiles steering wheel angle, it is characterized in that, comprising: rotary angle transmitter and angle displacement sensor detector;
Wherein, bearing circle and axle dress are arranged on the upper end of Steering gear, described rotary angle transmitter and described Steering gear are locked by band, the circular shaft part of described Steering gear and the axle head of described rotary angle transmitter are all fluted, described band is embedded into groove, and the axis of described Steering gear and described rotary angle transmitter is parallel, make like this Steering gear corner and sensor axle head corner synchronous; Described angle displacement sensor detector is arranged in the other end of described rotary angle transmitter, and described angle displacement sensor detector signal output part is connected with the signal input part of electronic control unit, wherein, described angle displacement sensor detector receives the bearing circle rotary angle signal of described rotary angle transmitter output, and converts bearing circle rotary angle signal to electric signal.
2. install according to claim 1, it is characterized in that, also comprise: fixed support, travel(l)ing rest, catch gear;
Wherein, the base portion of described fixed support and described rotary angle transmitter is bolted fixing, between described travel(l)ing rest and described fixed support, by described catch gear, connects.
3. install according to claim 2, it is characterized in that, on described travel(l)ing rest, transverse plane offers tapped bore, and for the fixed installation with supporting structure, and by tapped bore, described travel(l)ing rest is realized and being rotated to an angle around described fixed support.
4. install according to claim 1, it is characterized in that, the bearing circle rotary angle signal that described angle displacement sensor detector is exported for receiving described rotary angle transmitter, and convert bearing circle rotary angle signal to corresponding magnitude of voltage output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320413074.9U CN203427881U (en) | 2013-07-11 | 2013-07-11 | Turn angle detection device used for measuring turn angle of automobile steering wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320413074.9U CN203427881U (en) | 2013-07-11 | 2013-07-11 | Turn angle detection device used for measuring turn angle of automobile steering wheel |
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| Publication Number | Publication Date |
|---|---|
| CN203427881U true CN203427881U (en) | 2014-02-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320413074.9U Expired - Fee Related CN203427881U (en) | 2013-07-11 | 2013-07-11 | Turn angle detection device used for measuring turn angle of automobile steering wheel |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104176125A (en) * | 2014-08-27 | 2014-12-03 | 安徽三联交通应用技术股份有限公司 | Real-time high-precision detecting device for rotation angle and rotation angular velocity of steering wheel |
| CN105490461A (en) * | 2015-12-24 | 2016-04-13 | 合肥工业大学 | Corner detection device and detection method for motor |
| CN106768533A (en) * | 2017-03-21 | 2017-05-31 | 西华大学 | A kind of easily steering wheel angle torque tester |
| CN107628111A (en) * | 2017-10-24 | 2018-01-26 | 东北林业大学 | A kind of General Motors steering wheel angle measuring method |
| CN108254203A (en) * | 2016-12-29 | 2018-07-06 | 比亚迪股份有限公司 | The test device of wheel steering system |
| US10760905B2 (en) | 2018-06-29 | 2020-09-01 | Ford Motor Company | Steering wheel alignment apparatus for aligning a vehicular steering wheel |
| CN114234795A (en) * | 2021-12-17 | 2022-03-25 | 上海易咖智车科技有限公司 | Mechanical range detection device for corner of transport vehicle |
-
2013
- 2013-07-11 CN CN201320413074.9U patent/CN203427881U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104176125A (en) * | 2014-08-27 | 2014-12-03 | 安徽三联交通应用技术股份有限公司 | Real-time high-precision detecting device for rotation angle and rotation angular velocity of steering wheel |
| CN104176125B (en) * | 2014-08-27 | 2016-08-03 | 安徽三联交通应用技术股份有限公司 | A kind of real-time high-precision detection device of steering wheel rotational angle and rotational angular velocity |
| CN105490461A (en) * | 2015-12-24 | 2016-04-13 | 合肥工业大学 | Corner detection device and detection method for motor |
| CN105490461B (en) * | 2015-12-24 | 2017-12-15 | 合肥工业大学 | Motor rotation angle detecting apparatus and detection method |
| CN108254203A (en) * | 2016-12-29 | 2018-07-06 | 比亚迪股份有限公司 | The test device of wheel steering system |
| CN106768533A (en) * | 2017-03-21 | 2017-05-31 | 西华大学 | A kind of easily steering wheel angle torque tester |
| CN106768533B (en) * | 2017-03-21 | 2023-03-14 | 西华大学 | Convenient steering wheel corner torque tester |
| CN107628111A (en) * | 2017-10-24 | 2018-01-26 | 东北林业大学 | A kind of General Motors steering wheel angle measuring method |
| US10760905B2 (en) | 2018-06-29 | 2020-09-01 | Ford Motor Company | Steering wheel alignment apparatus for aligning a vehicular steering wheel |
| CN114234795A (en) * | 2021-12-17 | 2022-03-25 | 上海易咖智车科技有限公司 | Mechanical range detection device for corner of transport vehicle |
| CN114234795B (en) * | 2021-12-17 | 2024-02-13 | 上海易咖智车科技有限公司 | Transport vechicle corner mechanical range detection device |
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Legal Events
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| 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: 20140212 Termination date: 20150711 |
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| EXPY | Termination of patent right or utility model |