Window glass obstruction detector

Details Window glass obstruction detector Window glass obstruction detector

2005-06-14

2005-06-14

Duda, Rina (Department: 2837)

Electricity: motive power systems

Motor-reversing

Automatic and/or with time-delay means

C318S286000, C318S434000, C318S443000, C318S466000, C049S026000, C049S028000

Reexamination Certificate

active

06906482

ABSTRACT:
A detector, that prevents erroneous detection of a foreign object caught in a window glass when the engine of a vehicle is being operated and when the engine is stopped using a relatively simple control method. The detector includes a pulse sensor for detecting rotational speed of a motor. A microcomputer calculates a cycle difference sum based on the rotational speed of the motor. The microcomputer compares the cycle difference sum with a obstruction determination threshold to determine whether a foreign object has been caught. The microcomputer detects whether the engine is stopped. When detecting that the engine is stopped, the microcomputer changes the obstruction determination threshold so that the probability of the microcomputer determining that a foreign object has been caught is lower than that when the engine is being operated.

REFERENCES:
patent: 5422551 (1995-06-01), Takeda et al.
patent: 5689160 (1997-11-01), Shigematsu et al.
patent: 5774046 (1998-06-01), Ishihara et al.
patent: 5983567 (1999-11-01), Mitsuda
patent: 6100658 (2000-08-01), Kume et al.
patent: 6388406 (2002-05-01), Kyrtsos
patent: 6573677 (2003-06-01), Gerbetz
patent: 6667590 (2003-12-01), Nagaoka
patent: 6779303 (2004-08-01), Park et al.
patent: 09-021274 (1997-01-01), None
patent: 10-169315 (1998-06-01), None

Affiliated with

Also associated with

Rating

Window glass obstruction detector does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Window glass obstruction detector, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Window glass obstruction detector will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3491348