Controller of an internal combustion engine for synchronizing the engine during the engine shutdown

An ECU includes a backup RAM which stores a learning value of a loss torque characteristic of an engine. The learning value is updated based on the loss torque characteristic which is computed based on an actual engine rotation behavior. The ECU includes a first learning portion (S109) for updating...

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Bibliographic Details
Main Authors Shibata, Misao, Kawahara, Kenji, Utsunomiya, Yamato, Okamura, Koji, Yoshihara, Masatomo
Format Patent
LanguageEnglish
French
German
Published 25.12.2019
Subjects
BLASTING
COMBUSTION ENGINES
CONTROLLING COMBUSTION ENGINES
HEATING
HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
LIGHTING
MECHANICAL ENGINEERING
STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDEDFOR
STARTING OF COMBUSTION ENGINES
WEAPONS
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Summary:An ECU includes a backup RAM which stores a learning value of a loss torque characteristic of an engine. The learning value is updated based on the loss torque characteristic which is computed based on an actual engine rotation behavior. The ECU includes a first learning portion (S109) for updating the learning value based on the learning value stored in the memory (Tloss) and a presently computed loss torque characteristic (Tg), and a second learning portion (S112) for updating the learning value based on the presently computed loss torque characteristic (Tlossg) without using the learning value stored in the memory. A switching portion (S107) switches between the first learning portion and the second learning portion in order to update the learning value (Tloss).
Bibliography:Application Number: EP20100159232