Patent · US Active

Method and device for detecting a loosened bolted wheel joint on a wheel

US11953370B2 · kind B2 · utility

0Cited by

2References

11Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Jan Scheuing · Brackenheim, DE
Jens Berg · Bad Rappenau, DE

Key dates

Filing date	Jan 23, 2020
Grant date	Apr 9, 2024
Priority date	—
Expiry date	Feb 25, 2041

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB60B2900/3316
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A method for detecting a loosened bolted wheel joint on a wheel of a vehicle. The angular velocity of a hub of the wheel is evaluated. A periodic wheel modulation of the angular velocity is ascertained. An oscillation of the wheel generated due to the loosened bolted wheel joint is detected, using a step-change in a phase angle of the modulation by an expected angular increment, which is a function of the number of bolts.

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