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Title: Alternator control for battery charging

In accordance with an aspect of the present disclosure, an electrical system for an automotive vehicle has an electrical generating machine and a battery. A set point voltage, which sets an output voltage of the electrical generating machine, is set by an electronic control unit (ECU). The ECU selects one of a plurality of control modes for controlling the alternator based on an operating state of the vehicle as determined from vehicle operating parameters. The ECU selects a range for the set point voltage based on the selected control mode and then sets the set point voltage within the range based on feedback parameters for that control mode. In an aspect, the control modes include a trickle charge mode and battery charge current is the feedback parameter and the ECU controls the set point voltage within the range to maintain a predetermined battery charge current.
Authors:
; ; ;
Publication Date:
OSTI Identifier:
1193295
Report Number(s):
9,083,202
13/718,650
DOE Contract Number:
EE0003347
Resource Type:
Patent
Resource Relation:
Patent File Date: 2012 Dec 18
Research Org:
FCA US LLC, Auburn Hills, MI (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE; 33 ADVANCED PROPULSION SYSTEMS; 42 ENGINEERING