Electricity: single generator systems – With physical starting and/or stopping of the generator – Automatic in response to predetermined conditions
Reexamination Certificate
2005-02-11
2008-12-30
Gonzalez, Julio C (Department: 2834)
Electricity: single generator systems
With physical starting and/or stopping of the generator
Automatic in response to predetermined conditions
C322S010000, C322S028000, C322S044000, C320S123000
Reexamination Certificate
active
07471069
ABSTRACT:
A voltage raising device that provisionally maintains an operation and function when there is an abnormality provided. If a battery voltage drops when an engine is restarted after an idle stop, the voltage raising device raises the output voltage to a target voltage by using a voltage detecting circuit and a current detecting circuit. If an overcurrent determining circuit detects overcurrent, a switching control circuit reduces the target voltage to perform a control. If overvoltage is output, for example, due to an increased target voltage caused by an internal setting deviation resulting from a failure, an overvoltage detecting circuit outputs a prohibition signal ENV to stop the switching operation. However, as long as the output voltage is not overvoltage, the voltage raising operation is allowed. Therefore, the possibility that the engine can be started at least once without a problem is increased.
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Abo Shouji
Kusafuka Hironobu
Moritani Yusuke
Ojima Yoshitaka
Cuevas Pedro J
Gonzalez Julio C
Kenyon & Kenyon LLP
Toyota Jidosha & Kabushiki Kaisha
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