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Title: Electric vehicle auxiliary power source evaluation

Abstract

This report focuses on the electric vehicle auxiliary power system. This involves a collection of devices needed to operate the vehicle, including headlamps, blowers, instrument panel, entertainment equipment, windshield wipers, horn, turn signals, control electronics, etc. These devices are traditionally connected to a common 12 vdc power bus. In an EV, the traction battery is the prime source of power but this battery is at the wrong voltage level and lacks the regulation required by most auxiliary devices. Hence there is a need for an auxiliary power system. All of the methods for providing auxiliary power that are presently being investigated involve the use of a dc-dc converter whose task is to convert the traction battery voltage to 12 vdc, and to regulate this voltage in the face of traction battery voltage variations. This report addresses three objectives. First, it summarizes the status of currently available dc-dc converters and regulators in terms of the needs and difficulties experienced by in-service electric vehicles. Second, it provides an engineering assessment of these devices to determine whether the technology exists to solve the in-service maintenance and reliability problems. Third, it examines the longer range needs of auxiliary power system design and development. 15more » refs., 2 figs., 2 tabs.« less

Authors:
; ; ;
Publication Date:
Research Org.:
EG and G Idaho, Inc., Idaho Falls (USA)
OSTI Identifier:
6911378
Report Number(s):
DOE/ID-10205
ON: DE88015359
DOE Contract Number:  
AC07-76ID01570
Resource Type:
Technical Report
Resource Relation:
Other Information: Portions of this document are illegible in microfiche products
Country of Publication:
United States
Language:
English
Subject:
33 ADVANCED PROPULSION SYSTEMS; ELECTRIC-POWERED VEHICLES; DC TO DC CONVERTERS; VOLTAGE REGULATORS; AUXILIARY SYSTEMS; EVALUATION; TESTING; ELECTRICAL EQUIPMENT; EQUIPMENT; VEHICLES; 330300* - Advanced Propulsion Systems- Electric-Powered Systems

Citation Formats

Farmer, F G, Hill, A D, Jacobsen, J F, and Johnson, M R. Electric vehicle auxiliary power source evaluation. United States: N. p., 1988. Web.
Farmer, F G, Hill, A D, Jacobsen, J F, & Johnson, M R. Electric vehicle auxiliary power source evaluation. United States.
Farmer, F G, Hill, A D, Jacobsen, J F, and Johnson, M R. Wed . "Electric vehicle auxiliary power source evaluation". United States.
@article{osti_6911378,
title = {Electric vehicle auxiliary power source evaluation},
author = {Farmer, F G and Hill, A D and Jacobsen, J F and Johnson, M R},
abstractNote = {This report focuses on the electric vehicle auxiliary power system. This involves a collection of devices needed to operate the vehicle, including headlamps, blowers, instrument panel, entertainment equipment, windshield wipers, horn, turn signals, control electronics, etc. These devices are traditionally connected to a common 12 vdc power bus. In an EV, the traction battery is the prime source of power but this battery is at the wrong voltage level and lacks the regulation required by most auxiliary devices. Hence there is a need for an auxiliary power system. All of the methods for providing auxiliary power that are presently being investigated involve the use of a dc-dc converter whose task is to convert the traction battery voltage to 12 vdc, and to regulate this voltage in the face of traction battery voltage variations. This report addresses three objectives. First, it summarizes the status of currently available dc-dc converters and regulators in terms of the needs and difficulties experienced by in-service electric vehicles. Second, it provides an engineering assessment of these devices to determine whether the technology exists to solve the in-service maintenance and reliability problems. Third, it examines the longer range needs of auxiliary power system design and development. 15 refs., 2 figs., 2 tabs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1988},
month = {6}
}

Technical Report:
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