Advanced angle amendment manner and advanced angle amendment device null

摘要

PURPOSE:To enable accurate and quick lead angle correction by making forward conversion of an angle set by an ununiform speed system one time a uniform speed system, making lead angle correction into this uniform system and then making backward conversion into the ununiform speed system. CONSTITUTION:When a lead angle correction command is given, a forward conversion means 16 converts a set angle thetas of the ununiform system into a corresponding set angle thetas' of the uniform speed system in accordance with a converted data (thetav, thetar) to be stored in a memory 17. Further, a lead angle correction means 8 a corresponding set angle thetas' and lead angle correction data Td, SPM and makes spark advance correction in the uniform speed system under a prescribed operation to require a corresponding corrected spark advance thetac'. Hereafter, this corresponding corrected spark advance thetac' is converted backward by a backward conversion means 19 into a corrected lead angle thetac of the uniform speed system in accordance with a converted data to be stored in a memory 21. This corrected lead angle thetac is required by each objective drive embodiment and each control object 8.