Spark (mathematics)

About: Spark (mathematics) is a research topic. Over the lifetime, 7304 publications have been published within this topic receiving 63322 citations.

Control means of internal combustion engine for marine propulsion

Abstract: A number of embodiments of engine spark control systems wherein the engine speed is reduced in response to the sensing of an abnormal or an external condition and wherein the spark timing is altered when the spark is interrupted to preclude the likelihood of backfiring in the exhaust system or firing back in the induction system. In some embodiments, the sensed condition is an abnormal running condition and in other embodiments the sensed condition is shifting of the transmission. The backfiring and firing back is precluded primarily by advancing the spark from the idle spark advance.

Control oriented models for TWC-equipped spark ignition engines during the warm-up phase

Abstract: Introduces phenomenological models of the spark ignition engine combustion and the three-way catalyst, able to describe the dynamic behaviors of the system in different operating modes, including the thermal transient, and being sufficiently simple for control synthesis. The models have been validated on experimental data.

Distributor for internal combustion engine containing apparatus for suppressing noise

Abstract: A distributor containing an apparatus for suppressing noise is described, comprising a first spark discharging gap and a second spark discharging gap which exists close to the first spark discharging gap both of which are located between the electrodes of a distributor rotor and a stationary terminal, wherein the second spark discharging gap is formed through a dielectric member which is fixed to the distributor rotor and/or a stationary terminal, and the gap distance of the second spark discharging gap is shorter than that of the first spark discharging gap. The difference between the first spark discharging gap distance and the second spark discharging gap distance should be less than 3mm but greater than 0.2mm. Preferably, the difference should be less than 1.5mm but greater than 0.5mm.

Bibliography on ignition and spark-ignition systems/

Abstract: s, except that the abbreviation NACA is used for the National Advisory Committee for Aeronautics and SAE J. for the Journal of the Society of Automotive Engineers. An unpublished paper presented before a technical or professional society is designated by the abbreviation M. P. for Meeting Paper. Volume numbers are in boldface, and the date of issue is given in cases where page numbers do not run consecutively through a given volume.

Engine spark timing control for torque management of a motor vehicle drivetrain

Abstract: An engine spark timing control system and method for addressing various engine output torque constraints. Preignition and knock concerns are addressed according to the conventional practice of calibrating spark control table, and the most limiting of the drivetrain-related torque constraints is referenced to such table to determine the additional retard, if any, required to satisfy such constraint. With this control, the preignition spark control table or any of the drivetrain-related torque constraints may be changed at will without violating the other constraints or calibrations.