Engine revolution controlling apparatus

• Main Authors: SHIMIZU, MOTOHIRO, NAKAMURA, MASASHI
• Format: Patent
• Language: English
• Published: 11.06.2003
• Edition: 7
• Subjects: BLASTING; COMBUSTION ENGINES; CONTROLLING COMBUSTION ENGINES; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIGHTING; MECHANICAL ENGINEERING; TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION; TECHNICAL SUBJECTS COVERED BY FORMER USPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; WEAPONS

An electronic engine-governor control is carried out using no arithmetic tables and thus relieving a load to the CPU. A throttle opening is controlled with a control quantity to suppress a difference between the actual revolutions and the target. Calculator 107A is provided for calculating the difference D between the current revolutions and the target Ne(tgt). The difference D is corrected with an adjustment A based on a difference between the current revolutions Ne(0) and the previous revolutions Ne(-1) and an adjustment B based on a difference between the previous revolutions Ne(-1) and the revolutions before previous revolutions Ne(-2). Calculator 107B is provided for calculating an adjustment E in relation to a load from the throttle opening thetaTH(0) and the target Ne(tgt). Calculator 107C is provided for calculation D/E, the throttle controlling signal PthetaTH.