Invention Grant
- Patent Title: Method and device for determining a speed by means of an inductive speed sensor
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Application No.: US16965591Application Date: 2019-01-28
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Publication No.: US11378585B2Publication Date: 2022-07-05
- Inventor: Christoph Huber , Andre Kluftinger , Markus Eissner , Michael Herges
- Applicant: KNORR-BREMSE SYSTEME FUER NUTZFAHRZEUGE GMBH
- Applicant Address: DE Munich
- Assignee: KNORR-BREMSE SYSTEME FUER NUTZFAHRZEUGE GMBH
- Current Assignee: KNORR-BREMSE SYSTEME FUER NUTZFAHRZEUGE GMBH
- Current Assignee Address: DE Munich
- Agency: Norton Rose Fulbright US LLP
- Agent Gerard Messina
- Priority: DE102018001059.8 20180209
- International Application: PCT/EP2019/051968 WO 20190128
- International Announcement: WO2019/154654 WO 20190815
- Main IPC: G01P3/481
- IPC: G01P3/481 ; G01P13/04

Abstract:
A method for determining a speed between a measurement-sensor, including at least one coil and a ferromagnetic-transmitter-element (FEM), including: changing the inductance of the coil and the voltage induced therein, in a vehicle using an inductive-speed-sensor having at least the coil and FEM; recording the inductance-change of the coil, and determining the speed based on the changed-inductance; in which the inductance-change is recorded and the speed is determined based on the changed-inductance only until the determined-speed has reached a speed-limit-value (SLV) starting from lower-speeds, in which a voltage-change induced in the coil is recorded and the speed is determined based on the changed-voltage when the determined-speed has exceeded the SLV starting from lower-speeds, and in which an inductance-change is recorded and the speed is determined based on the changed-inductance when the determined-speed has reached/dropped below the SLV starting from higher-speeds. Also described are a related driver assistance system and vehicle.
Public/Granted literature
- US20210364544A1 METHOD AND DEVICE FOR DETERMINING A SPEED BY MEANS OF AN INDUCTIVE SPEED SENSOR Public/Granted day:2021-11-25
Information query
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