Patent · US Active

High-resolution PWM wheel speed sensor protocol

US11874297B2 · kind B2 · utility

0Cited by

1References

7Claims

0Family size

Assignee

Continental Automotive Technologies GmbH · DE

Inventors

René Trapp · Föckelberg, DE
Mario Trott · Münster, DE
Tillmann Krauss · Frankfurt, DE

Key dates

Filing date	Jan 28, 2021
Grant date	Jan 16, 2024
Priority date	—
Expiry date	Jan 28, 2041

Classification

Technology area (CPC G)Physics
CPC primaryG01P3/489
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A sensor for detecting relative movements between an encoder, having a substantially periodic scale and/or pattern, and at least one sensor element, wherein the sensor comprises at least one sensor element and a signal processing device, the signal processing device being designed to take the sensor element output signal of the sensor element as a basis for providing a movement signal, wherein the signal processing device is designed such that it has two or more switching thresholds for the at least one sensor element output signal, movement information that is taken into consideration for generating the movement signal being generated substantially whenever a switching threshold is exceeded and/or is fallen short of by the sensor element output signal, wherein the signal processing device is designed such that the appearance of movement information results in a particular movement impulse of defined duration being generated in the movement signal, wherein the signal processing device is designed to substantially rate and/or compute a relative velocity between the encoder and the sensor element by itself and the defined duration of the movement impulse is dependent on the circumsta…

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.