CN109398483A - A kind of automobile wide-range steering wheel angle sensor - Google Patents
A kind of automobile wide-range steering wheel angle sensor Download PDFInfo
- Publication number
- CN109398483A CN109398483A CN201810838081.0A CN201810838081A CN109398483A CN 109398483 A CN109398483 A CN 109398483A CN 201810838081 A CN201810838081 A CN 201810838081A CN 109398483 A CN109398483 A CN 109398483A
- Authority
- CN
- China
- Prior art keywords
- gear
- mlx90316
- chip
- hall
- main shaft
- 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.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D15/00—Steering not otherwise provided for
- B62D15/02—Steering position indicators ; Steering position determination; Steering aids
- B62D15/021—Determination of steering angle
- B62D15/0215—Determination of steering angle by measuring on the steering column
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
The invention discloses a kind of automobile wide-range steering wheel angle sensors, including turning to main shaft, it turns to and is fixedly installed with mainshaft gear on main shaft, mainshaft gear two sides are respectively equipped with pinion gear and gear wheel, pinion gear and gear wheel are mutually twisted with mainshaft gear, and it is located in same level, first rotating shaft is installed among pinion gear, first rotating shaft upper end is equipped with NdFeB magnet, second shaft is installed among gear wheel, second shaft upper end is also equipped with NdFeB magnet, it turns to main shaft upper end and pcb board is installed, and main shaft passes through pcb board, pcb board is mounted below two panels MLX90316 Hall chip, two panels MLX90316 Hall chip is respectively at following gear wheel and pinion gear in same vertical line, the invention rotary angle transmitter has stability good, precision is high, react fast The advantages that speed and measurement range are wide, can be applicable in automobile and related fields.
Description
Technical field
The present invention relates to automotive engineering technology field, specially a kind of automobile wide-range steering wheel angle sensor.
Background technique
With the rapid development of automotive electronic technology and auto industry, electronic stabilizing control system (ESP) and electric boosted
The electronic products such as steering system (EPS) are not only used widely in passenger car, but also to general commercial vehicle and heavy type
It is popularized on truck.Corner of vehicle steering wheel sensor is as one of the important sensor in these systems, measurement accuracy and sound
Speed is answered to directly affect the Stability and dependability of each system work.Due to the steering wheel stroke range of commercial vehicle and common riding
Vehicle is different, and simply the steering wheel angle sensor being applied on passenger car, which cannot be put on commercial vehicle or heavy truck, makes
With therefore, exploitation has more wide-measuring range, while high-performance and the corner of vehicle steering wheel sensor of low cost being kept to become
For an important topic in automobile electric control system research.
Summary of the invention
In view of the above problems, the present invention provides a kind of automobile wide-range steering wheel angle sensors, by being equipped with
One gear combination of two panels MLX90316 Hall chip and setting, can effectively solve the problems in background technique.
To achieve the above object, the invention provides the following technical scheme: a kind of automobile wide-range steering wheel angle senses
Device, including main shaft is turned to, it is fixedly installed with mainshaft gear on the steering main shaft, the mainshaft gear two sides are respectively equipped with small tooth
Wheel and gear wheel, the pinion gear and gear wheel are mutually twisted with mainshaft gear, and are located in same level, in the pinion gear
Between first rotating shaft is installed, the first rotating shaft upper end is equipped with the first NdFeB magnet, is equipped with second among the gear wheel
Shaft, second shaft upper end are equipped with the 2nd NdFeB magnet, and the steering main shaft upper end is equipped with pcb board, and main shaft
Across pcb board, the pcb board is mounted below two panels MLX90316 Hall chip, respectively the first MLX90316 Hall core
Piece and the 2nd MLX90316 Hall chip, the first MLX90316 Hall chip and the 2nd MLX90316 Hall chip point
Not with following pinion gear and gear wheel in same vertical line.
As a preferred technical solution of the present invention, the MLX90316 Hall chip is a utilization
TriaxisTM (three axis) Hall technology obtains the standalone sensor chip of angle information, and chip front end includes two pairs mutually orthogonal
Conventional planar Hall element and a collection magnetic sheet.
As a preferred technical solution of the present invention, the NdFeB magnet is at a distance from MLX90316 Hall chip
10-20mm。
Compared with prior art, the beneficial effects of the present invention are: the invention passes through this utilization of MLX90316
TriaxisTM (three axis) Hall technology obtains the standalone sensor chip of angle information, and chip front end includes two pairs mutually orthogonal
Conventional planar Hall element and a collection magnetic sheet, due to MLX90316 use difference modes, perpendicular to the outside of chip surface
Magnetic induction intensity is cancelled, and the left magnetic field for being parallel to chip surface is decomposed and is measured respectively in two directions, core
Collection magnetic sheet in piece can will be transformed to the component in two vertical direction proportional therewith, then by the conventional planar in chip
Hall element measures the two vertical components, which has stability good, and precision is high, is swift in response and measures
The advantages that range is wide can be applicable in automobile and related fields.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention；
In figure:: 1- turns to main shaft, 2- mainshaft gear, 3-PCB plate, the first MLX90316 Hall chip of 4-, 5- second
MLX90316 Hall chip, 6- pinion gear, 7- first rotating shaft, the first NdFeB magnet of 8-, 9- gear wheel, the second shaft of 10-,
The 2nd NdFeB magnet of 11-,.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment:
Referring to Fig. 1, the present invention provides a kind of technical solution: a kind of automobile wide-range steering wheel angle sensor, including turn
To main shaft 1, mainshaft gear 2 is fixedly installed on the steering main shaft 1,2 two sides of mainshaft gear are respectively equipped with 6 He of pinion gear
Gear wheel 9, the pinion gear 6 and gear wheel 9 are mutually twisted with mainshaft gear 2, and are located in same level, the pinion gear 6
Centre is equipped with first rotating shaft 7, and 7 upper end of first rotating shaft is equipped with the first NdFeB magnet 8, installation among the gear wheel
There is the second shaft 10,10 upper end of the second shaft is equipped with the 2nd NdFeB magnet 11, and 1 upper end of steering main shaft is equipped with
Pcb board 3, and main shaft 1 passes through pcb board 3, the pcb board 3 is mounted below two panels MLX90316 Hall chip, and respectively the
One MLX90316 Hall chip 4 and the 2nd MLX90316 Hall chip 5, the first MLX90316 Hall chip 4 and second
MLX90316 Hall chip 5 is respectively with following pinion gear 6 and gear wheel 9 in same vertical line.
The MLX90316 Hall chip 4 is a with TriaxisTM (three axis) Hall technology acquisition angle information
Standalone sensor chip, chip front end includes two pairs of mutually orthogonal conventional planar Hall elements and a collection magnetic sheet.It is described
It is 10-20mm at a distance from NdFeB magnet 8 and MLX90316 Hall chip 4.
The working principle of the invention: by setting MLX90316, this is a with TriaxisTM (three axis) Hall for the invention
Technology obtain angle information standalone sensor chip, chip front end include two pairs of mutually orthogonal conventional planar Hall elements and
One collection magnetic sheet is cancelled since MLX90316 uses difference modes perpendicular to the external magnetic induction intensity of chip surface, is left
The magnetic field for being parallel to chip surface is decomposed to be measured respectively in two directions, and the collection magnetic sheet in chip can will be transformed to
Then it is vertical to measure the two by the conventional planar Hall element in chip for component in two vertical direction proportional therewith
Component, the invention rotary angle transmitter have stability good, and precision is high, is swift in response the advantages that wide with measurement range, can be in automobile
And it is promoted and applied in related fields.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (3)
1. a kind of automobile wide-range steering wheel angle sensor, including turn to main shaft (1), it is characterised in that: the steering master
It being fixedly installed on axis (1) mainshaft gear (2), mainshaft gear (2) two sides are respectively equipped with pinion gear (6) and gear wheel (9),
The pinion gear (6) and gear wheel (9) are mutually twisted with mainshaft gear (2), and are located in same level, the pinion gear (6)
Centre is equipped with first rotating shaft (7), and first rotating shaft (7) upper end is equipped with the first NdFeB magnet (8), in the gear wheel
Between be equipped with the second shaft (10), the second shaft (10) upper end is equipped with the 2nd NdFeB magnet (11), the steering main shaft
(1) upper end is equipped with pcb board (3), and main shaft (1) passes through pcb board (3), and the pcb board (3) is mounted below two panels
MLX90316 Hall chip, respectively the first MLX90316 Hall chip (4) and the 2nd MLX90316 Hall chip (5), institute
State the first MLX90316 Hall chip (4) and the 2nd MLX90316 Hall chip (5) respectively with following pinion gear (6) and big
Gear (9) is in same vertical line.
2. a kind of automobile wide-range steering wheel angle sensor according to claim 1, it is characterised in that: described
MLX90316 Hall chip (4) is a independent sensing that angle information is obtained with TriaxisTM (three axis) Hall technology
Device chip, chip front end include two pairs of mutually orthogonal conventional planar Hall elements and a collection magnetic sheet.
3. a kind of automobile wide-range steering wheel angle sensor according to claim 1, it is characterised in that: described
NdFeB magnet (8) is 10-20mm at a distance from MLX90316 Hall chip (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810838081.0A CN109398483A (en) | 2018-07-26 | 2018-07-26 | A kind of automobile wide-range steering wheel angle sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810838081.0A CN109398483A (en) | 2018-07-26 | 2018-07-26 | A kind of automobile wide-range steering wheel angle sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109398483A true CN109398483A (en) | 2019-03-01 |
Family
ID=65463474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810838081.0A Pending CN109398483A (en) | 2018-07-26 | 2018-07-26 | A kind of automobile wide-range steering wheel angle sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109398483A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112678069A (en) * | 2020-12-31 | 2021-04-20 | 桂林市国创朝阳信息科技有限公司 | Vehicle steering angle measuring system based on absolute sensor |
-
2018
- 2018-07-26 CN CN201810838081.0A patent/CN109398483A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112678069A (en) * | 2020-12-31 | 2021-04-20 | 桂林市国创朝阳信息科技有限公司 | Vehicle steering angle measuring system based on absolute sensor |
| CN112678069B (en) * | 2020-12-31 | 2023-08-15 | 桂林市国创朝阳信息科技有限公司 | Vehicle steering angle measurement system based on absolute sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190301 |