CONTROL OF SUPERCHARGED INTERNAL COMBUSTION ENGINES

PCT No. PCT/EP88/00395 Sec. 371 Date Jan. 8, 1990 Sec. 102(e) Date Jan. 8, 1990 PCT Filed May 7, 1988 PCT Pub. No. WO89/11027 PCT Pub. Date Nov. 16, 1989.In a turbocharged diesel engine (10), the charging pressure PLa is adjusted to run the engine (10) with an empirically determined optimum fuel con...

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Hauptverfasser:	KULL, HERMANN, BERGER, JOACHIM, BIRK, MANFRED, SAUTTER, WILFRIED
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING COMBUSTION ENGINES COMBUSTION ENGINES IN GENERAL CONTROLLING COMBUSTION ENGINES HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS INTERNAL-COMBUSTION PISTON ENGINES LIGHTING MECHANICAL ENGINEERING WEAPONS
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Zusammenfassung:	PCT No. PCT/EP88/00395 Sec. 371 Date Jan. 8, 1990 Sec. 102(e) Date Jan. 8, 1990 PCT Filed May 7, 1988 PCT Pub. No. WO89/11027 PCT Pub. Date Nov. 16, 1989.In a turbocharged diesel engine (10), the charging pressure PLa is adjusted to run the engine (10) with an empirically determined optimum fuel consumption. A charging pressure feedback signal PLa is fed to a regulating device (40) which receives various operating parameters, including MEd which represents the power output. A characteristic field in a memory zone (50) in the regulating device (40) determines a control variable (TV) which operates a turbine by-pass valve (22) via an electro-pneumatic converter (28) and a penumatic (vacuum) actuator (26). The characteristic field is such that the charging presssure PLa is reduced in the part load range (cruising speed) to improve fuel consumption.