Combustion-pressure-data acquisition system of...

Details Combustion-pressure-data acquisition system of... Combustion-pressure-data acquisition system of...

2006-06-20

2006-06-20

McCall, Eric S. (Department: 2855)

Measuring and testing

Vehicle drive train

Rear end

Reexamination Certificate

active

07062955

ABSTRACT:
A combustion-pressure-data acquisition system of a multi-cylinder engine according to the present invention includes an in-cylinder pressure sensor CPS#n for directly detecting combustion pressure in each cylinder; an amplifier unit AP#n to which the in-cylinder pressure sensor CPS#n for each cylinder is connected; and a channel switching unit MUX to which the amplifier unit AP#n for each cylinder is connected. It selects a system to be measured from among a plurality of systems of signals from the amplifier units AP#n with a channel selection signal outputted from an engine-controlling electronic control unit and outputs combustion pressure data to the ECU. Further, it outputs to an amplifier unit AP#n with which measurement ends a reset signal for discharging the electric charge between the in-cylinder pressure sensor CPS#n and the amplifier circuit to efficiently acquire combustion pressure data of each cylinder with a simple structure without complicated processing.

REFERENCES:
patent: 4690116 (1987-09-01), Takahashi
patent: 4821194 (1989-04-01), Kawamura
patent: 5076098 (1991-12-01), Miwa
patent: 6776032 (2004-08-01), Matsui et al.
patent: 2004/0183398 (2004-09-01), Kashiwase et al.
patent: 2005/0061296 (2005-03-01), Kashiwase et al.
patent: 63-44133 (1988-03-01), None
patent: 63-98535 (1988-04-01), None
patent: 3-246327 (1991-11-01), None
patent: 3-246350 (1991-11-01), None
patent: 3-246352 (1991-11-01), None
patent: 5-172679 (1993-07-01), None
patent: 7-280686 (1995-10-01), None
patent: 2000-45857 (2000-02-01), None

Affiliated with

Also associated with

Rating

Combustion-pressure-data acquisition system of... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Combustion-pressure-data acquisition system of..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Combustion-pressure-data acquisition system of... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3702229