Advanced 10 min read
Battery Characteristics
For this discussion, batteries have been divided into four thematic groups: lead acid, alkaline, high temperature, and solid electrolyte. Various…
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Advanced 7 min read
Electric Drivetrain Technologies
Introduction The appeal of using electricity to power automobiles is that it would eliminate vehicular air pollution (although there would…
Advanced 3 min read
DISC and Two-Stroke Engines
Direct Injection Stratified Charge (DISC) Engines are considered as the highest level of technology refinement for SI engines. These engines…
Advanced 6 min read
Reducing Pumping Loss
Reductions in flow pressure loss can be achieved by reducing the pressure drop that occurs in the flow of air…
Advanced 4 min read
Reducing Mechanical Friction
Mechanical friction losses can be reduced by converting sliding metal contacts to rolling contacts, reducing the weight of moving parts,…
Advanced 5 min read
Improvements To Spark Ignition Engines
Overview The spark ignition (SI) engine is the dominant passenger car and light truck powerplant in the United States. The…
Advanced 5 min read
Rolling Resistance Reduction
Background The rolling resistance of a tire is the force required to move the tire forward, and represents nearly a…
Advanced 7 min read
Materials Selection Criteria
Five key factors affect the auto designer’s selection of materials: manufacturability and cost, performance, weight, safety, and recyclability. Manufacturability and…
Advanced 5 min read
Technologies for Advanced Vehicles Performance and Cost Expectations
This chapter discusses the technical potential and probable costs of a range of advanced vehicle technologies that may be available…
Advanced 4 min read
Battery Technologies
The battery is the critical technology for electric vehicles, providing both energy and power storage. Unfortunately, the weak link of…
Advanced 5 min read
Safety Of Lightweight Vehicles
Several of the advanced vehicles examined by OTA will be extremely light. For example, one of the 2015 advanced conventional…
Advanced 5 min read
Emissions Performance
Reductions in vehicular emissions are a key goal of programs to develop advanced technology vehicles. In California, it is the…