Internal-combustion engines – Engine speed regulator – By changing valve lift
Patent
1981-02-06
1983-08-23
Nelli, Raymond A.
Internal-combustion engines
Engine speed regulator
By changing valve lift
123339, 123417, 123418, F02D 104, F02M 5106, F02D 902
Patent
active
043997899
ABSTRACT:
There is provided a warm up control system for an internal combustion engine which controls the engine speed, spark ignition timing and the spark advance in order to keep the engine operating condition in desirable for maximizing the warm up efficiency and minimizing of exhaust emission and fuel consumption. The control system include an electronic controlled storing tables respectively representative of a target engine speed, a required maximum engine warm up rate and a required engine stability in relation to an engine temperature and a crank revolution angle as a representative of the engine speed. In the system, the engine speed, spark ignition timing and the spark advance are controlled so that the engine operating condition adapts the determined target engine speed, the maximum engine warm up rate and the maximum engine stability.
REFERENCES:
patent: 3964457 (1976-06-01), Coscia
patent: 4203395 (1980-05-01), Cromas et al.
patent: 4223654 (1980-09-01), Wessel et al.
patent: 4237838 (1980-12-01), Kinugawa et al.
patent: 4244023 (1981-01-01), Johnson
patent: 4289100 (1981-09-01), Kinugawa et al.
patent: 4297978 (1981-11-01), Matsui
Nelli Raymond A.
Nissan Motor Company Limited
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