Device and method for pseudonoise generation

Patent metadata

Field	Value
Publication number	US-8955455-B2
Application number	US-201013575739-A
Country	US
Kind code	B2
Filing date	Jan 29, 2010
Priority date	Jan 29, 2010
Publication date	Feb 17, 2015
Grant date	Feb 17, 2015

Abstract

A derivation part derives accelerator information AR corresponding to accelerator opening angle and rotating speed information ER corresponding to engine rotating speed, based on the traveling information reflecting the operational state of a drive mechanism of a vehicle, acquired by an acquisition part. Subsequently, a generation part generates a pseudo sound signal of a waveform pattern corresponding to a combination of AR and ER. On the other hand, a level control part calculates a level designation value LVC based on the derived rotating speed information. The level control part reduces the pseudo sound signal level at a change rate to decrease discomfortness for the passengers in the vehicle, if ER continuously changes in a predetermined range for a predetermined time period during the calculation of LVC. As a result, pseudo sound that does not impart any discomfort sense to the passengers in the passenger compartment is generated.

First claim

The invention claimed is:

1. A pseudo sound generation device mounted to a vehicle that is equipped with a drive mechanism, comprising:
an acquisition part that acquires traveling information reflecting the operational state of said drive mechanism;
a derivation part that derives pseudo sound-related information on the basis of said acquired traveling information, including rotating speed information of said drive mechanism, which is corresponding to engine rotating speed when s…

Assignees

• Tanaka Junichi
• Sugiyama Masayuki
• Pioneer Corp

Inventors

• Tanaka Junichi
• Sugiyama Masayuki

Classifications

• B60L2270/42

  Operations & Transport · mapped topic

• B60Q5/008 Primary

  Operations & Transport · mapped topic

• G10K15/02

  Physics · mapped topic