Electronic throttle control position sensor
US6396259B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 4, 1999 |
| Grant date | May 28, 2002 |
| Priority date | — |
| Expiry date | Jun 4, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D2205/777
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An electronic position sensor for determining position as a function of magnetic flux density. The position sensor includes a magnetic flux sensor and a movable magnet, the sensed magnetic flux density by the magnetic sensor being a function of the relative air gap, magnet thickness, and magnetic field direction between the magnet and the magnet sensor element. The relationship between the magnetic flux density sensed by the magnetic sensing element and the positional disposition of the moved magnet component of the sensor is geometrically defined and optionally linear between two defined points of the range of articulation or motion of the sensor. The magnetic flux sensing element is a Hall-effect integrated circuit, magnetoresistor, magnetodiode, magnetotransistor, or similar sensing element with associated electronic circuitry having adjustable or programmable features including ratiometry, gain, offset voltage, temperature coefficient, and output signal range limiting.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.