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Patent Searching and Data


Title:
CONTROLLER FOR ON-VEHICLE POWER GENERATOR
Document Type and Number:
Japanese Patent JP3267018
Kind Code:
B2
Abstract:

PURPOSE: To always keep a battery well charged even when the power generating margin of a power generator varies by adding a prescribed delay time to the target generated voltage value of the generator at the time of returning the target value to an original low value when the rotating speed of the generator becomes lower than a prescribed speed and, at the same time, the power generation factor of the generator becomes lower than a prescribed value while the target value is changed to a higher value.
CONSTITUTION: In case the power generation factor of a power generator 1 detected by a power generating factor detecting circuit 4 is higher than a prescribed value when the charging of a is battery 6 is controlled by setting the target generated voltage value of the generator 1 at a low level, a CPU 51 identifies the possibility of discharging front the battery 6. When the cumulative time of such a state exceeds a fixed value, a target value changing circuit 5 changes the target generated voltage value to a higher value so that the battery 6 can be charged quickly. When the rotating speed of the generator 1 detected by an engine speed detecting circuit 2 is lower than a prescribed speed and the power generation factor of the generator 1 is smaller than another prescribed value, the circuit 5 returns the target generated voltage value to the original value. When the value is returned to the original small value, a generated voltage control. circuit 3 adds a prescribed delay time to the target generated voltage value.


Inventors:
Tsutsui, Toshio
Sato, Hirohide
Application Number:
JP1993000311170
Publication Date:
March 18, 2002
Filing Date:
November 17, 1993
Export Citation:
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Assignee:
NIPPONDENSO CO LTD
International Classes:
H02J7/16; H02J7/24; (IPC1-7): H02J7/24; H02J7/16
Attorney, Agent or Firm:
伊藤 求馬