HEV control strategy: implications of performance criteria, system configuration and design, and component selection

Maximizing the potential benefits of hybrid-electric vehicles (HEVs) depends on comprehensive understanding of performance, drive system, and vehicle-design parameters. The paper explores parametric vehicle design, integration, and drive system-control relationships that appear significant, with the intention of stimulating thoughtful system integration and control-strategy development. Design criteria are introduced as the basis for vehicle parameters influencing drive system configuration and control. Issues affecting drive system optimization and control are identified in relation to maximization of fuel economy, minimization of emissions, peak and continuous performance, and stored energy and performance consistency