Batteries for 42/14 Volt Automotive Electrical Systems

2000-01-3065

08/21/2000

Event
Future Transportation Technology Conference & Exposition
Authors Abstract
Content
The automotive industry is moving to a higher voltage for the electrical system. This change will occur because the total electrical power required by the vehicles will increase to a level where the current requirements at 14 volts will be impractical. Some of the new loads will change the duty cycle of the battery. The most notable change is the proposed start/stop mode of vehicle operation where the engine is stopped and restarted frequently to avoid prolonged operation at idle. An additional feature would be to use an electric motor to assist in acceleration and/or to actually launch the vehicle. This paper addresses the changes in battery requirements brought on by these new features. A means of analysis for choosing the appropriate battery technology is presented. We also propose a life test to establish a benchmark for current battery technology when it is used in a new duty cycle.
Meta TagsDetails
DOI
https://doi.org/10.4271/2000-01-3065
Pages
8
Citation
Crouch, D., and Ballard, G., "Batteries for 42/14 Volt Automotive Electrical Systems," SAE Technical Paper 2000-01-3065, 2000, https://doi.org/10.4271/2000-01-3065.
Additional Details
Publisher
Published
Aug 21, 2000
Product Code
2000-01-3065
Content Type
Technical Paper
Language
English