Verfahren und Vorrichtung zur Steuerung eines automatischen Kraftfahrzeuggetriebes

摘要

The present invention is characterized in that it comprises signal detecting means located before the automatic transmission mechanism for detecting the timing that torque outputted from a torque converter of said automatic transmission at the moment of shifting up changes from clutch before shift to clutch after shift, signal detecting means located after the automatic transmission mechanism for detecting the timing that torque outputted from a torque converter of said automatic transmission at the moment of shifting down changes from clutch before shift to clutch after shift, and means for executing said driving shaft torque control in response to the changes in said both torque signal detecting means. The present invention may detect accurately the moment in which driving shaft torque is most controllable, i.e., the clutch shifting timing so that shocks of gear change may sufficiently be suppressed. Also, as said starting timing of the compensatory control of torque matches with detecting means for detecting clutch shifting, experimental matching for each shift is not required and experimental steps may be eliminated.