CN107436156B - Potentiometer type steering wheel angle sensor based on two-stage planetary gear transmission - Google Patents
Potentiometer type steering wheel angle sensor based on two-stage planetary gear transmission Download PDFInfo
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- CN107436156B CN107436156B CN201710849922.3A CN201710849922A CN107436156B CN 107436156 B CN107436156 B CN 107436156B CN 201710849922 A CN201710849922 A CN 201710849922A CN 107436156 B CN107436156 B CN 107436156B
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- planetary gear
- steering wheel
- stage planetary
- double
- potentiometer
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 12
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
- G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
- G01D5/16—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying resistance
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Steering Controls (AREA)
Abstract
The invention discloses a potentiometer type steering wheel angle sensor based on double-stage planetary gear transmission, which comprises a rotary potentiometer, wherein the input end of the rotary potentiometer is connected with a double-stage planetary gear mechanism, and the output end of the rotary potentiometer is connected with an electronic control unit. The invention has simple structure and control principle, reliable signal and low failure rate, and can lead the total rotation angle of the sliding resistance arm to be smaller than 360 degrees by decelerating through the double-stage planetary gear mechanism, for example, the transmission ratio of one row of planetary gear mechanism is not large enough, and one row of planetary gear mechanism can be connected in series for combined transmission.
Description
Technical Field
The invention relates to a potentiometer type steering wheel angle sensor based on double-stage planetary gear transmission.
Background
The steering wheel angle sensor is a main sensor of an automobile ESP system, an electric control suspension system and an electronic steering system. In order to facilitate steering of a driver, the steering angle of a steering wheel and the deflection angle of steering wheels are generally set to have a large transmission ratio, and the left and right limit steering angle of the steering wheel is generally about 4 circles, which puts high demands on the structure of the steering wheel angle sensor and the connecting wire harness.
Disclosure of Invention
The invention aims to provide a potentiometer type steering wheel angle sensor based on double-stage planetary gear transmission aiming at the defects in the prior art.
The invention adopts the following technical scheme to realize the aim: the utility model provides a potentiometer-type steering wheel angle sensor based on doublestage planetary gear drive, includes rotary potentiometer, rotary potentiometer's input is connected with doublestage planetary gear mechanism, rotary potentiometer's output is connected with electronic control unit.
Further, the two-stage planetary gear mechanism comprises a gear ring, a planet carrier is arranged in the gear ring, a sun gear is arranged in the planet carrier, and a first planetary gear and a second planetary gear are arranged between the sun gear and the gear ring; the sun gear is connected with the steering shaft, and the gear ring is connected with the rotary potentiometer.
Further, the rotary potentiometer comprises a slide film resistor and a slide resistor arm, one end of the slide resistor arm is connected with the planet carrier, and the other end of the slide resistor arm is connected with the slide film resistor in a matched mode.
The invention has the beneficial effects that: the invention has simple structure and control principle, reliable signal and low failure rate, and can lead the total rotation angle of the sliding resistance arm to be smaller than 360 degrees by decelerating through the planetary gear mechanism, for example, the transmission ratio of one row of planetary gear mechanism is not large enough, and one row of planetary gear mechanism can be connected in series for combined transmission.
Drawings
Fig. 1 is a schematic diagram of the structure of the present invention.
Detailed Description
Fig. 1 shows, and relates to a potentiometer type steering wheel angle sensor based on double-stage planetary gear transmission, which comprises a rotary potentiometer, wherein the input end of the rotary potentiometer is connected with a double-stage planetary gear mechanism, and the output end of the rotary potentiometer is connected with an electronic control unit.
The double-stage planetary gear mechanism comprises a gear ring 6, a planet carrier 4 is arranged in the gear ring 6, a sun gear 2 is arranged in the planet carrier 4, and a first planetary gear 3 and a second planetary gear 5 are arranged between the sun gear 2 and the gear ring 6; the sun gear 2 is connected with the steering shaft 1, and the gear ring 6 is connected with a rotary potentiometer.
The rotary potentiometer comprises a slide film resistor 8 and a slide resistor arm 7, one end of the slide resistor arm 7 is connected with the planet carrier 5, and the other end of the slide resistor arm 7 is connected with the slide film resistor 8 in a matched mode.
When the double-stage planetary gear mechanism is designed, the gear ring of the double-stage planetary gear mechanism is fixed, and through proper tooth number design, the double-stage planetary gear mechanism reduces and outputs the turning angle of the steering wheel according to the requirement, so that the turning angle of the planet carrier is smaller than 360 degrees when the steering wheel rotates at the left and right limit. The electronic control unit is connected with the rotary potentiometer through Vc, vs and E, wherein Vc is a 5V output end of the electronic control unit, vs is a signal end of the potentiometer which is transmitted to the electronic control unit, and E is a ground end; when the steering wheel forwards, the sliding resistor arm is positioned at the middle position of the sliding film resistor, and the voltage value of the Vs signal is 2.5V; when the steering wheel turns, the value of the signal voltage Vs generated by the potentiometer is directly related to the turning direction and the angle, and the electronic control unit can accurately know the turning direction and the angle of the steering wheel.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.
Claims (1)
1. The potentiometer type steering wheel angle sensor based on the double-stage planetary gear transmission comprises a rotary potentiometer, wherein the input end of the rotary potentiometer is connected with a double-stage planetary gear mechanism, and the output end of the rotary potentiometer is connected with an electronic control unit;
the double-stage planetary gear mechanism comprises a gear ring, a planet carrier is arranged in the gear ring, a sun gear is arranged in the planet carrier, and a first planetary gear and a second planetary gear are arranged between the sun gear and the gear ring; the sun gear is connected with the steering shaft, and the gear ring is connected with the rotary potentiometer;
the rotary potentiometer comprises a slide film resistor and a slide resistor arm, one end of the slide resistor arm is connected with the planet carrier, and the other end of the slide resistor arm is connected with the slide film resistor in a matched mode;
when the double-stage planetary gear mechanism is designed, the gear ring of the double-stage planetary gear mechanism is fixed, and through proper tooth number design, the double-stage planetary gear mechanism reduces and outputs the turning angle of the steering wheel according to the requirement, so that the turning angle of the planet carrier is smaller than 360 degrees when the steering wheel rotates at the left and right limit; the electronic control unit is connected with the rotary potentiometer through Vc, vs and E, wherein Vc is a 5V output end of the electronic control unit, vs is a signal end of the potentiometer which is transmitted to the electronic control unit, and E is a ground end; when the steering wheel forwards, the sliding resistor arm is positioned at the middle position of the sliding film resistor, and the voltage value of the Vs signal is 2.5V; when the steering wheel turns, the value of the signal voltage Vs generated by the potentiometer is directly related to the turning direction and the angle, and the electronic control unit can accurately know the turning direction and the angle of the steering wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710849922.3A CN107436156B (en) | 2017-09-13 | 2017-09-13 | Potentiometer type steering wheel angle sensor based on two-stage planetary gear transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710849922.3A CN107436156B (en) | 2017-09-13 | 2017-09-13 | Potentiometer type steering wheel angle sensor based on two-stage planetary gear transmission |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107436156A CN107436156A (en) | 2017-12-05 |
| CN107436156B true CN107436156B (en) | 2023-10-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710849922.3A Active CN107436156B (en) | 2017-09-13 | 2017-09-13 | Potentiometer type steering wheel angle sensor based on two-stage planetary gear transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107436156B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2528758Y (en) * | 2002-02-08 | 2003-01-01 | 中国科学院自动化研究所 | Device for measuring angle of crane lifting rope |
| CN1436715A (en) * | 2002-02-08 | 2003-08-20 | 中国科学院自动化研究所 | Lifting rope angle measurer for crane |
| CN101608898A (en) * | 2009-07-14 | 2009-12-23 | 武汉理工大学 | Steering system planetary gear absolute angle output corner sensor |
| CN104627232A (en) * | 2015-02-11 | 2015-05-20 | 重庆大学 | Automobile active steering coupling device based on double rows of planetary gear trains and steering system |
| CN207515802U (en) * | 2017-09-13 | 2018-06-19 | 无锡商业职业技术学院 | A kind of potentiometer type steering wheel angle sensor based on double pinions transmission |
-
2017
- 2017-09-13 CN CN201710849922.3A patent/CN107436156B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2528758Y (en) * | 2002-02-08 | 2003-01-01 | 中国科学院自动化研究所 | Device for measuring angle of crane lifting rope |
| CN1436715A (en) * | 2002-02-08 | 2003-08-20 | 中国科学院自动化研究所 | Lifting rope angle measurer for crane |
| CN101608898A (en) * | 2009-07-14 | 2009-12-23 | 武汉理工大学 | Steering system planetary gear absolute angle output corner sensor |
| CN104627232A (en) * | 2015-02-11 | 2015-05-20 | 重庆大学 | Automobile active steering coupling device based on double rows of planetary gear trains and steering system |
| CN207515802U (en) * | 2017-09-13 | 2018-06-19 | 无锡商业职业技术学院 | A kind of potentiometer type steering wheel angle sensor based on double pinions transmission |
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| Publication number | Publication date |
|---|---|
| CN107436156A (en) | 2017-12-05 |
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Application publication date: 20171205 Assignee: Wuxi Ruiyao Technology Co.,Ltd. Assignor: WUXI INSTITUTE OF COMMERCE Contract record no.: X2023980051345 Denomination of invention: A potentiometer type steering wheel angle sensor based on two-stage planetary gear transmission Granted publication date: 20231020 License type: Common License Record date: 20231211 |