Joseph Carl Burba

CONTROL SYSTEM ARCHITECTURE FOR AN ADVANCED ELECTRIC VEHICLE POWERTRAIN

Reduced complexity, improved driveability, and increased energy efficiency are among the advantages which can be obtained through (on-board) computer control of powertrains in both conventional and electric vehicles. This paper describes the design and implementation of a control system for an advanced electric vehicle powertrain, incorporating an integrated induction motor and two speed automatic transaxle. The control system employs a distributed computer architecture utilizing a fiber optic communication system for computer coordination. Direct computer control of the clutches in the transmission results in smooth gear shifts without requiring a torque converter. Final testing and evaluation of the vehicle has verified the effectiveness of this control system in providing excellent driveability while maintaining good energy efficiency. For the covering abstract see IRRD 860793.