Title:
ALTERNATOR CONTROL UNIT, ALTERNATOR DRIVING CONTROL METHOD, AND POWER SUPPLY MANAGEMENT SYSTEM FOR ENGINE VEHICLE
Document Type and Number:
WIPO Patent Application WO/2016/167324
Kind Code:
A1
Abstract:
[Problem]
To maintain high fuel efficiency even during charging of a battery by driving an alternator when not decelerating, in a power supply management system wherein the battery is charged by driving the alternator during deceleration.
[Solution]
When deceleration is not occurring, the power generation cost of the alternator is determined from the engine rotational speed and the torque, and the alternator is driven only when the state of charge (SOC) of the battery is in a driving permission zone Z that has been determined on the basis of the power generation cost, the SOC, and the power consumption, such that the SOC decreases as the power generation cost rises, and the SOC increases as the power consumption increases. Thus, the fuel efficiency is higher than in the prior art, in which the alternator is driven continuously if the SOC is equal to or less than the maximum upper limit value SOCm, regardless of the power generation cost, which is an indicator of the engine efficiency.
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Inventors:
KOGUCHI ATSUHIRO (JP)
YAGI TOSHINORI (JP)
OSHIAGE KATSUNORI (JP)
YAGI TOSHINORI (JP)
OSHIAGE KATSUNORI (JP)
Application Number:
PCT/JP2016/062031
Publication Date:
October 20, 2016
Filing Date:
April 14, 2016
Export Citation:
Assignee:
CALSONIC KANSEI CORP (JP)
International Classes:
F02D29/06; H02P9/04; H02P101/45
Foreign References:
| JP2012117402A | 2012-06-21 | |||
| JP2010104123A | 2010-05-06 | |||
| JP2012200095A | 2012-10-18 | |||
| JP2007116766A | 2007-05-10 | |||
| JP2014015132A | 2014-01-30 | |||
| JP2013194707A | 2013-09-30 |
Attorney, Agent or Firm:
TAKEHARA Naohiko et al. (JP)
Naohiko Takehara (JP)
Naohiko Takehara (JP)
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