Abstract
As a full-line vehicle manufacturer committed to addressing global fuel consumption concerns, environmental issues, and consumer needs, General Motors has developed two new hybrid systems, offering the consumer choice, and enabling for broad application.
The first system, called the "Hybrid", is a simple, flexible, and elegant hybrid architecture. It combines sophisticated hybrid controls with a precision electric motor generator mated to the engine. This architecture enables the engine to be off when vehicle is stopped, early fuel cutoff during deceleration, regenerative braking, intelligent charging of advanced hybrid battery and electric power assist. The "Hybrid" is aimed at offering a great overall value proposition to the consumer.
The second system, called the "Two-Mode Hybrid" is a full hybrid system that enables significant improvement in composite fuel economy while providing uncompromised performance and trailering capability. This architecture is also the basis of the global alliance for hybrid development between General Motors, DaimlerChrysler and BMW. The "Two- Mode Hybrid" can operate as a robust eCVT, or it can select a fixed gear ratio, offering advantages in fuel economy, comfort and performance. The "Two-Mode Hybrid" is aimed at setting the industry standard for a full hybrid.
This paper describes the technical concepts and the benefits of General Motors´ innovative "Hybrid" and "Two-Mode Hybrid" systems.
Keywords:Consumer choice, simple/flexible hybrid, full hybrid, improved fuel economy, uncompromised performance