Method for controlling ignition timing for an internal combustio

Interrelated power delivery controls – including engine control – Electric engine – With clutch control

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

477111, B60K 4106, B60K 4128, F02P 515

Patent

active

055734740

ABSTRACT:
An ignition timing control method for a vehicle which provides an engine torque output waveform for canceling vibrational disturbances caused by sudden throttle plate movement resulting in engine accelerations and decelerations. The ignition timing is variably advanced and retarded in accordance with a phase-shifted derivative of engine speed to produce an appropriate engine torque output waveform for optimally canceling the vehicle vibrational disturbances. The phase shift is accomplished by applying a time delay to the engine speed derivative. A negative bias is added to the ignition timing for retarding ignition timing by a predetermined amount to permit a full sinusoidal canceling waveform. A blend multiplier is utilized to gradually remove the effects of the canceling waveform and bias, thereby gradually returning the ignition timing to its original setting.

REFERENCES:
patent: 4509477 (1985-04-01), Takao et al.
patent: 4512309 (1985-04-01), Tansuwan
patent: 4844026 (1989-07-01), Tomisawa
patent: 4852537 (1989-09-01), Nagano et al.
patent: 4870935 (1989-10-01), Araki
patent: 4887573 (1989-12-01), Fujiwara et al.
patent: 4909224 (1990-03-01), Nishiyama et al.
patent: 5070841 (1991-12-01), Fujimoto et al.
patent: 5070843 (1991-12-01), Komurasaki
patent: 5119782 (1992-06-01), Kashiwabara et al.
SAE Paper 850967 "Vehicle Response to Thorttle Tip-In/Tip-Out", Robert A. Krenz, pp. 45-52 (1986).
SAE Paper 891157 "Nissan's New `High-Drivability` Vibration Control System", T. Abe; H. Minami; T. Atago; Y. Fujiwara; A. Hashimoto; S. Nakazawa, pp. 335-340 (1989).

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Method for controlling ignition timing for an internal combustio 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 controlling ignition timing for an internal combustio, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for controlling ignition timing for an internal combustio will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-558716

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.