Device for determining misfiring of cylinders in multi-cylinder

Details Device for determining misfiring of cylinders in multi-cylinder Device for determining misfiring of cylinders in multi-cylinder

1993-07-21

1994-10-11

Raevis, Robert

Measuring and testing

Vehicle chassis

Steering

G01M 1500

Patent

active

053536363

ABSTRACT:
A torque sensor which can detect instantaneous output torque of the engine is disposed on the output shaft of the engine, and the output signal thereof is frequency-analyzed to extract a half synchronous frequency component having a frequency equals to a half of the number of the revolutions of the engine per second and a synchronous frequency component having a frequency equals to the number of the revolutions of the engine per second, the electronic control unit (ECU) of the engine determines the misfiring mode of the engine including the number of the misfiring cylinders and the interval thereof in the firing order of the engine based on the amplitude of the frequency components and the waveform thereof, then the ECU determines the misfiring cylinders based on the determined misfiring mode and the phase angle of the frequency components of the torque sensor relative to a reference crank angle signal.

REFERENCES:
patent: 5200899 (1993-04-01), Ribbens et al.

Affiliated with

Also associated with

Rating

Device for determining misfiring of cylinders in multi-cylinder does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Device for determining misfiring of cylinders in multi-cylinder , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device for determining misfiring of cylinders in multi-cylinder will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1651289