CN203595523U - Novel steering wheel angle sensor - Google Patents
Novel steering wheel angle sensor Download PDFInfo
- Publication number
- CN203595523U CN203595523U CN201320613740.3U CN201320613740U CN203595523U CN 203595523 U CN203595523 U CN 203595523U CN 201320613740 U CN201320613740 U CN 201320613740U CN 203595523 U CN203595523 U CN 203595523U
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- CN
- China
- Prior art keywords
- steering wheel
- hall element
- permanent magnet
- gear ring
- tooth
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- 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
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Abstract
The utility model discloses a novel steering wheel angle sensor comprising a permanent magnet, a Hall element, and a special tooth ring. The permanent magnet and the Hall element are fixedly disposed in a combination switch cover, which is disposed under the steering wheel, by bolts, and are not rotated along with the steering wheel. The special tooth ring is fixedly disposed on a steering telescopic transmission shaft of the steering wheel, is provided with teeth and spaced gaps, and is used to detect the rotating speed and the rotating angle of the steering wheel. The intervals among the teeth of the special tooth ring are gradually increased or decreased along a clockwise direction, and by adopting the arrangement, the rotating direction of the steering wheel can be identified. The novel steering wheel angle sensor is advantageous in that the Hall element can be used to replace the conventional photosensitive element, and the Hall reaction principle can be used to replace the general photoelectric reaction principle, and therefore the reliability of the sensor can be improved.
Description
Technical field
The utility model belongs to automobile electromechanical integration field, relates to heavy-duty car electric stabilizing system (ESP), relates in particular to a kind of steering wheel angle sensor.
Background technology
Growing along with national economy, the characteristic of heavy truck transportation high-speed overload is more and more outstanding, therefore, the heavy truck huge social danger that the loses stability accident of overturning causes has under steam caused worldwide concern, European Union's rules that taken the lead in revising, put intact stability device (ESP Electronic Stability Programme) as must assembling of heavy truck mandatory requirement.Existing steering wheel angle sensor is by permanent magnet and light activated element are installed in bearing circle combined switch, utilize photovoltaic reaction mechanism sensing driver to turn to intention, its major defect is parts manufacture requirement precision, and working environment has strict restriction, cost is higher, poor reliability.
The utility model is by comparatively advanced technological means, can realize speed to rotating of steering wheel and the Real-Time Monitoring of angle, and then the intention that judges that pilot control turns to is provided, and provides important support for realizing the Based Intelligent Control of heavy truck riding stability.
Utility model content
Speed while turning to for Accurate Determining heavy truck and angle, judge that for electronic control system provides driver turns to the accurate foundation of intention, and it is a kind of simple in structure that the utility model provides, manufacture difficulty is low, environmental suitability is strong, reliable operation, the novel steering wheel rotary angle transmitter that cost is low.
For achieving the above object, the utility model adopts following technical scheme.
Novel steering wheel rotary angle transmitter described in the utility model comprises permanent magnet, Hall element, special gear ring.
Wherein permanent magnet and Hall element are mounted by means of bolts on the combined switch cover that is positioned at bearing circle below, and not with rotating of steering wheel, and this mounting means is together arranged convenience is provided for signal transmssion line and steering indicating light control line.
Special gear ring is fixedly mounted on the flexible transmission shaft of turning to of bearing circle, is positioned at the induction zone of Hall element, has tooth and interval breach, for detection of speed and the angle of rotating of steering wheel.
Preferably, the gap size between tooth and the tooth of special gear ring is clockwise increasing or decreasing arranges, this arrangement has increased the function of identification rotating of steering wheel direction.
The principle of work of this technical scheme is, in the time of driver's steering wheel rotation, turn to the special gear ring of installing on flexible transmission shaft to rotate thereupon, the tooth of gear ring and interval breach are alternately by Hall element induction zone, the density of line of magnetic force that makes permanent magnet pass Hall element changes, thereby cause the variation of Hall voltage, the voltage signal of a Hall element millivolt of output (mV) level, this signal is converted to by the signal processing unit in ESP system after the pulse voltage (square wave) of standard, the computer control module of input ESP system, computer control module calculates speed and the angle of rotating of steering wheel.
The utility model advantage is: adopt Hall element to replace existing light activated element, replace general photovoltaic reaction mechanism with Hall reaction principle, improved the reliability of sensor.
Accompanying drawing explanation
Accompanying drawing 1 is novel steering wheel rotary angle transmitter element scheme of installation;
Accompanying drawing 2 is the special gear ring schematic diagram of novel steering wheel rotary angle transmitter;
Reference numeral explanation:
1 bearing circle
2 combined switch covers
3 turn to flexible transmission shaft
5 permanent magnets
6 Hall elements
7 special gear rings
Embodiment
Understand and realize the utility model for the ease of persons skilled in the art, now describing by reference to the accompanying drawings a specific embodiment of novel steering wheel rotary angle transmitter described in the utility model.
As shown in Figure 1, novel steering wheel rotary angle transmitter described in the utility model comprises permanent magnet 5, Hall element 6, special gear ring 7.
Wherein permanent magnet 5 and Hall element 6 are mounted by means of bolts on the combined switch cover 2 that is positioned at bearing circle 1 below, and not with rotating of steering wheel, and this mounting means is together arranged convenience is provided for signal transmssion line and steering indicating light control line.
As shown in Figure 2, special gear ring 7 has tooth and interval breach, for detection of speed and the angle of rotating of steering wheel.
In this specific embodiment, the gap size between tooth and the tooth of special gear ring 7 is the layout of successively decreasing clockwise, and this arrangement has increased the function of identification rotating of steering wheel direction.
Gap size between tooth and the tooth of special gear ring 7 can also be and increases progressively clockwise layout, and this arrangement also can increase the function of identification rotating of steering wheel direction.
In the time of driver's steering wheel rotation, turn to the special gear ring of installing on flexible transmission shaft to rotate thereupon, the tooth of gear ring and interval breach are alternately by Hall element induction zone, the density of line of magnetic force that makes permanent magnet pass Hall element changes, thereby cause the variation of Hall voltage, the voltage signal of a Hall element millivolt of output (mV) level, this signal is converted to by the signal processing unit in ESP system after the pulse voltage (square wave) of standard, the computer control module of input ESP system, computer control module calculates speed and the angle of rotating of steering wheel.
Although described the utility model by embodiment, but those of ordinary skills know, in the situation that not departing from spirit of the present utility model and essence, just can make the utility model have many variations and distortion, scope of the present utility model is limited to the appended claims.
Claims (1)
1. a novel steering wheel rotary angle transmitter, is characterized in that, comprises permanent magnet, Hall element, special gear ring,
Wherein permanent magnet and Hall element are mounted by means of bolts on the combined switch cover that is positioned at bearing circle below, and not with rotating of steering wheel,
Special gear ring is fixedly mounted on the flexible transmission shaft of turning to of bearing circle, is positioned at the induction zone of Hall element, has tooth and interval breach.
Gap size between tooth and the tooth of described special gear ring is the layout that increases progressively clockwise or successively decrease clockwise.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320613740.3U CN203595523U (en) | 2013-09-29 | 2013-09-29 | Novel steering wheel angle sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320613740.3U CN203595523U (en) | 2013-09-29 | 2013-09-29 | Novel steering wheel angle sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203595523U true CN203595523U (en) | 2014-05-14 |
Family
ID=50676393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320613740.3U Expired - Lifetime CN203595523U (en) | 2013-09-29 | 2013-09-29 | Novel steering wheel angle sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203595523U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104236449A (en) * | 2014-09-19 | 2014-12-24 | 三峡大学 | Steering wheel angle sensor |
| CN115682896A (en) * | 2023-01-03 | 2023-02-03 | 泉州昆泰芯微电子科技有限公司 | Motion position detection device, valve assembly, opening detection method and pipeline system |
-
2013
- 2013-09-29 CN CN201320613740.3U patent/CN203595523U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104236449A (en) * | 2014-09-19 | 2014-12-24 | 三峡大学 | Steering wheel angle sensor |
| CN115682896A (en) * | 2023-01-03 | 2023-02-03 | 泉州昆泰芯微电子科技有限公司 | Motion position detection device, valve assembly, opening detection method and pipeline system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140514 |
|
| CX01 | Expiry of patent term |