Performance control of a motor vehicle engine for consistent hig

Details Performance control of a motor vehicle engine for consistent hig Performance control of a motor vehicle engine for consistent hig

1987-06-29

1988-12-06

Herrmann, Allan D.

Machine element or mechanism

Rotary member or shaft indexing, e.g., tool or work turret

Preselected indexed position

74866, B60K 4104

Patent

active

047888903

ABSTRACT:
In a motor vehicle power train including an automatic transmission calibrated to provide high quality shifting at a specified engine performance level, an engine spark timing control system effective in the course of transmission shifting for bringing the actual engine acceleration into correspondence with a predefined engine acceleration. The predefined engine acceleration corresponds to the acceleration which would occur at the specified engine performance level upon which the transmission calibration is based. As a result, high quality transmission shifting is achieved despite engine performance level variations.

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