Device and method for detecting a driving event of a vehicle

US11094145B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Nils Larcher · Lörrach, DE
• Henar Martin Rodriguez · Stuttgart, DE
• Peter Bakucz · Klosterlechfeld, DE

Key dates

• Filing date: Oct 16, 2017
• Grant date: Aug 17, 2021
• Expiry date: Jul 1, 2038

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60W2556/45
• WIPO field: Control
• WIPO sector: Instruments

Abstract

A device for detecting a driving event of a vehicle, having a triaxial acceleration sensor and a processing unit. The device may be fixedly installed on the vehicle. The processing unit is configured to detect a plurality of acceleration values within a specific time span using the acceleration sensor, carry out a wavelet transform of the acceleration values to determine first coefficients, and compare the first coefficients at least to stored second coefficients. The second coefficients represent a predefined driving event. The processing unit is configured to detect the driving event represented by the second coefficients as an occurred driving event when the first coefficients are in agreement with the second coefficients, and is configured to determine characteristic parameters of the detected acceleration values, to ascertain a specific mother wavelet as a function of the characteristic parameters, and to carry out the wavelet transform based on the ascertained mother wavelet.