DUAL BATTERY BLOCK SYSTEM FOR ELECTRIC VEHICLES

Carlos Armenta-Déu; Anthony Fernandes

Abstract

This work is aimed at the enlargement of the driving range in electric vehicles by improving the performance of the battery bench through a new configuration. The new design is based on a double battery bench, working in parallel, one of high discharge rate characteristics and the other of standard discharge rate. The operation of the double battery bench is regulated by a control system that drains current from the appropriate battery depending on the specific driving conditions and on the acceleration of the electric vehicle. Since acceleration requires a higher discharge rate than any other driving mode, the control system commutes from standard to high discharge rate battery when the acceleration exceeds a set up value or the driving conditions requirements are very demanding. The development of the project establishes the real driving conditions for urban routes based on the standard segments, acceleration, constant speed, deceleration, climbing and descent as well as on the specific driver’s mode, aggressive, moderate, and conservative. The design includes the layout of the system and how the control system “decides” which battery is being used. Specific algorithms for the operational mode are developed and verified using a scale prototype that reproduces the driving conditions of a real urban route

DUAL BATTERY BLOCK SYSTEM FOR ELECTRIC VEHICLES

Abstract

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Abstract

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