CN101722987A - Detection device and detection method for automotive steering angle - Google Patents
Detection device and detection method for automotive steering angle Download PDFInfo
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- CN101722987A CN101722987A CN200910251473A CN200910251473A CN101722987A CN 101722987 A CN101722987 A CN 101722987A CN 200910251473 A CN200910251473 A CN 200910251473A CN 200910251473 A CN200910251473 A CN 200910251473A CN 101722987 A CN101722987 A CN 101722987A
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- 238000001514 detection method Methods 0.000 title abstract description 9
- 238000000034 method Methods 0.000 claims description 12
- 238000007689 inspection Methods 0.000 claims description 8
- 238000012544 monitoring process Methods 0.000 abstract description 3
- 238000006073 displacement reaction Methods 0.000 description 11
- 238000005516 engineering process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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Abstract
The invention discloses a detection device for an automotive steering angle, which comprises a Hall sensor which outputs different voltage signals according to different magnetic field intensities, a permanent magnet and a calculator for receiving the voltage signals of the Hall sensor and performing calculation. The detection device for the automotive steering angle further comprises an automotive steering angle device for a rack and pinion steering engine. When an automobile steers, a steering wheel drives the rack and pinion to move. The Hall sensor is arranged on an axis of the rack and pinion without moving along the steering. The permanent magnet is arranged at a corresponding position of the rack and pinion of the steering engine. The detection method for the detection device comprises the following steps: driving the rack and pinion of the steering engine to move by the steering wheel when the automobile steers; outputting different voltage signals by the Hall sensor according to the change of the magnetic field intensities; and calculating and measuring the automotive steering angle according to a corresponding relationship between the voltage signals and a rotating angle. Due to the adoption of a detection circuit of the Hall sensor and reasonable arrangement of the position of the Hall element, the detection device for the automotive steering angle has the advantages of simple structure, high precision, and the capacities of accurately measuring the automotive steering angle in real time and realizing the monitoring and closed loop control in real time.
Description
Technical field
The present invention relates to a kind of object position detection device and method of inspection, especially relate to a kind of detecting device and method of inspection thereof of automotive steering angle.
Background technology
At present, Chinese patent application numbers 200810126440.6 discloses a kind of method of measurement of corner of vehicle steering wheel.Main swivel in the vehicle steering drives secondary swivel rotation under the rotation of turning cylinder drives, main swivel and secondary swivel transmitting ratio are m: n, and main swivel obtains the relative rotation θ of main swivel by first rotary angle transmitter
1, secondary swivel obtains the relative rotation θ of secondary swivel by second rotary angle transmitter
2, obtain the actual square K of cutting thus, cut square K by reality and obtain the theoretical square L of cutting, cut the rotation number of turns P that square L obtains main swivel by theory again, with the relative rotation θ of described main swivel
1Relative rotation θ with secondary swivel
2Input microprocessor, absolute rotational angle theta in the m circle of the main swivel of output promptly is to rotate number of turns P and main swivel relative rotation θ by main swivel after the microprocessor processes
1Obtain main swivel absolute rotational angle theta in the m circle.The method of measurement of this corner of vehicle steering wheel can be eliminated the systematic error that is caused by idle running, is implemented in and accurately measures absolute rotational angle theta in the m circle in small size, the simple structure.Its main structure is a sensor installation on Steering gear, we can realize detecting the anglec of rotation of bearing circle by this technology, but its shortcoming is it is the anglec of rotation that detects automobile by the anglec of rotation that detects bearing circle, the method complexity, and can't realize closed loop control.
Summary of the invention
The detecting device that the purpose of this invention is to provide a kind of automotive steering angle, further purpose provides a kind of method of inspection.Solve the detecting device of present automotive steering angle and the structural approach challenge that method of inspection exists thereof.Realize monitoring and closed loop control in real time.
The technical solution adopted for the present invention to solve the technical problems is: a kind of detecting device of automotive steering angle comprises according to Hall element, the permanent magnet of different magnetic field intensity output varying voltage signal and the calculator that receives the Hall element voltage signal and calculate; The automotive steering angle device that also comprises the rack and pinion steering machine, when motor turning, bearing circle driven gear tooth bar moves; It is characterized in that: described Hall element is installed on the axis of rack-and-gear not with handling maneuver; Described permanent magnet is arranged on the corresponding position of rack-and-gear of steering box.
Described Hall element is the bipolarity linear hall sensor.
Described calculator is the microcontroller on the vehicle.
A kind of method of inspection of detecting device of automotive steering angle, it is characterized in that: when motor turning, bearing circle drives the steering box rack-and-gear and moves, Hall element is according to the different voltage signal of variation output of magnetic-field intensity, according to the corresponding good relation of voltage signal,, calculator measures automotive steering angle again thereby calculating with the anglec of rotation.
The reference magnetic field of a permanent magnet as Hall element is installed on the rack-and-gear of steering box, and Hall element is installed on the axis of rack-and-gear not with handling maneuver.When motor turning, bearing circle driven gear tooth bar moves, the size that Hall element comes the perception steering angle by the variation that detects magnetic field.
Beneficial effect of the present invention: owing to adopt the testing circuit of linear hall sensor, and reasonable Arrangement Hall element position, the present invention is simple in structure, precision is high, can measure the automotive steering angle position accurately in real time, realizes monitoring and closed loop control in real time.
Below with reference to drawings and Examples, the present invention is carried out comparatively detailed explanation.
Description of drawings
Fig. 1 is a kind of detecting device organigram of automotive steering angle.
Among the figure: 1. rack-and-gear, 2. Hall element, 3. tire, 4. permanent magnet.
Fig. 2 is the concern scheme drawing of bearing circle rotation with rack displacement.
Among the figure: S1 is that bearing circle is killed hour rack maximum displacement to the right left.
S2 is that bearing circle is killed hour rack maximum displacement left to the right.
Fig. 3 is the linear relationship chart of rack displacement sensor voltage and the inside and outside corner of the near front wheel.
The specific embodiment
Embodiment, as shown in Figure 1, a kind of detecting device of automotive steering angle comprises according to Hall element 2, the permanent magnet of different magnetic field intensity output varying voltage signal and the calculator that receives the Hall element voltage signal and calculate; The automotive steering angle device that also comprises the rack and pinion steering machine, when motor turning, bearing circle driven gear tooth bar 1 moves, also servo-actuated of tire 3.Described Hall element 2 is installed on the axis of rack-and-gear 1 not with handling maneuver; Described permanent magnet is arranged on the rack-and-gear 1 corresponding position of steering box.
Described Hall element is preferably the bipolarity linear hall sensor.
Described calculator can be the microcontroller on the vehicle.
A kind of method of inspection of detecting device of automotive steering angle, it is characterized in that: when motor turning, bearing circle drives the steering box rack-and-gear and moves, Hall element is according to the different voltage signal of variation output of magnetic-field intensity, according to the corresponding good relation of voltage signal,, calculator measures automotive steering angle again thereby calculating with the anglec of rotation.
Below with reference to Fig. 2,3 principle of the present invention is described:
Among Fig. 3, be example with the near front wheel, the hypothesis wheel is 45 ° to the inner rotary maximum angle when bearing circle is killed left, and the maximum displacement to the right of corresponding tooth bar is S1; When bearing circle is killed to the right this to take turns inside rotation maximum angle be 40 °, the maximum displacement left of corresponding tooth bar is S2; Wheel steering angle is not 0 ° when beating direction, and rack displacement is 0.
When supposing that bearing circle is killed left, tooth bar 1 maximum displacement that moves right is S1, and it is S2 that bearing circle is killed hour rack 1 maximum displacement left to the right, when bearing circle do not move and tire maintenance level forward the hour rack displacement be zero.With the near front wheel is example, faces left when direction and beats hour rack and move right, and meanwhile wheel outwards rotates.When the bearing circle right side is beaten, in contrast.
Setting corresponding wheel steering angle when bearing circle is not beaten is 0 degree, and rack displacement is zero, and respective sensor voltage is 2.5V, and is as shown in Figure 3 linear each other.
The present invention changes by the moving belt moving field of tooth bar, exports different voltages thereby Hall passes device according to different magnetic field intensity, and then learns the wheel revolutions angle.
Claims (4)
1. the detecting device of an automotive steering angle comprises according to Hall element, the permanent magnet of different magnetic field intensity output varying voltage signal and the calculator that receives the Hall element voltage signal and calculate; The automotive steering angle device that also comprises the rack and pinion steering machine, when motor turning, bearing circle driven gear tooth bar moves; It is characterized in that: described Hall element is installed on the axis of rack-and-gear not with handling maneuver; Described permanent magnet is arranged on the corresponding position of rack-and-gear of steering box.
2. the detecting device of automotive steering angle as claimed in claim 1, it is characterized in that: described Hall element is the bipolarity linear hall sensor.
3. the detecting device of automotive steering angle as claimed in claim 1 or 2, it is characterized in that: described calculator is the microcontroller on the vehicle.
4. adopt the method for inspection of the detecting device of the described automotive steering angle of claim 1, it is characterized in that: when motor turning, bearing circle drives the steering box rack-and-gear and moves, Hall element is according to the different voltage signal of variation output of magnetic-field intensity, according to the corresponding good relation of voltage signal,, calculator measures automotive steering angle again thereby calculating with the anglec of rotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910251473A CN101722987A (en) | 2009-12-23 | 2009-12-23 | Detection device and detection method for automotive steering angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910251473A CN101722987A (en) | 2009-12-23 | 2009-12-23 | Detection device and detection method for automotive steering angle |
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| CN101722987A true CN101722987A (en) | 2010-06-09 |
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| CN200910251473A Pending CN101722987A (en) | 2009-12-23 | 2009-12-23 | Detection device and detection method for automotive steering angle |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101966856A (en) * | 2010-09-26 | 2011-02-09 | 昌辉汽车电气系统（安徽）有限公司 | Automobile steering wheel rotating angle measurement method |
| CN106184355A (en) * | 2016-09-18 | 2016-12-07 | 重庆乔麦科技有限公司 | A kind of electric double helix formula turns to machine |
| CN106672067A (en) * | 2016-09-18 | 2017-05-17 | 重庆乔麦科技有限公司 | Electronic steering device |
| CN106926894A (en) * | 2015-12-31 | 2017-07-07 | 罗伯特·博世有限公司 | Steering wheel rotation information determining device and steering wheel rotation information determine method |
| CN107462148A (en) * | 2017-09-19 | 2017-12-12 | 浙江大华技术股份有限公司 | A kind of door state detection method and device |
| CN107599982A (en) * | 2017-07-31 | 2018-01-19 | 浙江英伦汽车有限公司 | Rearview mirror folds and expansion control system |
| TWI672515B (en) * | 2018-10-25 | 2019-09-21 | 智佳電子股份有限公司 | Smart sensor |
| CN110820180A (en) * | 2019-11-28 | 2020-02-21 | 杰克缝纫机股份有限公司 | Stitch length detecting method, stitch length detecting device, sewing machine, and readable storage medium |
| CN110835809A (en) * | 2019-11-28 | 2020-02-25 | 杰克缝纫机股份有限公司 | Stitch length detection method, stitch length detection device, computer device, and readable storage medium |
| CN112319609A (en) * | 2020-10-13 | 2021-02-05 | 易显智能科技有限责任公司 | System and method for sensing steering angle of motor vehicle steering gear |
| CN113758574A (en) * | 2021-09-06 | 2021-12-07 | 浙江亚特电器有限公司 | Snow sweeper spouts snow mouthful live object detection device |
| CN115071820A (en) * | 2021-03-11 | 2022-09-20 | 株式会社万都 | Steering control apparatus and method |
-
2009
- 2009-12-23 CN CN200910251473A patent/CN101722987A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101966856A (en) * | 2010-09-26 | 2011-02-09 | 昌辉汽车电气系统（安徽）有限公司 | Automobile steering wheel rotating angle measurement method |
| CN106926894A (en) * | 2015-12-31 | 2017-07-07 | 罗伯特·博世有限公司 | Steering wheel rotation information determining device and steering wheel rotation information determine method |
| CN106184355B (en) * | 2016-09-18 | 2018-05-04 | 重庆乔麦科技有限公司 | A kind of electric double helix formula turning machine |
| CN106672067A (en) * | 2016-09-18 | 2017-05-17 | 重庆乔麦科技有限公司 | Electronic steering device |
| CN106184355A (en) * | 2016-09-18 | 2016-12-07 | 重庆乔麦科技有限公司 | A kind of electric double helix formula turns to machine |
| CN107599982A (en) * | 2017-07-31 | 2018-01-19 | 浙江英伦汽车有限公司 | Rearview mirror folds and expansion control system |
| CN107462148A (en) * | 2017-09-19 | 2017-12-12 | 浙江大华技术股份有限公司 | A kind of door state detection method and device |
| CN107462148B (en) * | 2017-09-19 | 2019-09-17 | 浙江大华技术股份有限公司 | A kind of door state detection method and device |
| TWI672515B (en) * | 2018-10-25 | 2019-09-21 | 智佳電子股份有限公司 | Smart sensor |
| CN110820180A (en) * | 2019-11-28 | 2020-02-21 | 杰克缝纫机股份有限公司 | Stitch length detecting method, stitch length detecting device, sewing machine, and readable storage medium |
| CN110835809A (en) * | 2019-11-28 | 2020-02-25 | 杰克缝纫机股份有限公司 | Stitch length detection method, stitch length detection device, computer device, and readable storage medium |
| CN110820180B (en) * | 2019-11-28 | 2022-05-17 | 杰克科技股份有限公司 | Needle pitch detection method, needle pitch detection device, sewing machine, and readable storage medium |
| CN112319609A (en) * | 2020-10-13 | 2021-02-05 | 易显智能科技有限责任公司 | System and method for sensing steering angle of motor vehicle steering gear |
| CN115071820A (en) * | 2021-03-11 | 2022-09-20 | 株式会社万都 | Steering control apparatus and method |
| CN113758574A (en) * | 2021-09-06 | 2021-12-07 | 浙江亚特电器有限公司 | Snow sweeper spouts snow mouthful live object detection device |
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Application publication date: 20100609 |