Method for determining a state of a road during the driving...

Details Method for determining a state of a road during the driving... Method for determining a state of a road during the driving...

2005-10-11

2005-10-11

Hofsass, Jeffery (Department: 2636)

Communications: electrical

Condition responsive indicating system

Specific condition

C340S580000, C340S581000, C340S582000, C340S583000, C340S901000, C340S905000, C073S590000, C073S594000, C073S648000, C073S649000, C073S660000, C073S659000, C180S167000, C180S168000, C180S169000, 36, 36, C701S080000

Reexamination Certificate

active

06954146

ABSTRACT:
In a method for determining the state of a road during driving of a motor vehicle, the sound which is generated when a vehicle tire rolls on an underlying surface is sensed. A frequency signal is determined by means of a sound level signal which describes the sound, and is divided into at least two sub-zones by means of at least one limiting frequency. The sub-zones are each assigned to an associated frequency band, and an intensity value is determined for each of at least two frequency bands from the assigned sub-zone of the frequency signal. The intensity value is characteristic of the sound intensity which is present in a frequency band. An intensity ratio is formed from two intensity values by dividing the first intensity value of the first frequency band by the second intensity value of the second frequency band, and is used to determine the state of a road.

REFERENCES:
patent: 5532678 (1996-07-01), Kin et al.
patent: 5586028 (1996-12-01), Sekine et al.
patent: 5852243 (1998-12-01), Chang et al.
patent: 3728708 (1989-03-01), None
patent: 40 19 501 (1990-06-01), None
patent: 40 40 842 (1990-12-01), None
patent: 42 13 221 (1992-04-01), None
patent: 4213221 (1993-10-01), None
patent: 1998 55 332 (1998-12-01), None
patent: 0 412 791 (1991-02-01), None
patent: 8-175334 (1996-07-01), None
patent: 8-261993 (1996-10-01), None

Affiliated with

Also associated with

Rating

Method for determining a state of a road during the driving... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for determining a state of a road during the driving..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for determining a state of a road during the driving... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3445563