Vehicle power supply system with a series regulator
First Claim
1. A vehicle power supply system comprising:
- a first battery connected to a generator driven by an engine of a vehicle;
a second battery connected to an electric load and having an open circuit voltage lower than that of the first battery;
a series regulator connecting the first battery and the second battery;
detection means which detect a temperature of the series regulator, an output voltage of the series regulator and a load amount of the electric load; and
a control unit which controls an input voltage of the series regulator and the output voltage of the series regulator on the basis of detection values of the detection means.
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Accused Products
Abstract
A vehicle power supply system has a first battery connected to a generator, a second battery connected to an electric load and a series regulator between the first battery and the second battery. A control unit controls an input voltage of the series regulator and the output voltage of the series regulator based on a temperature of the series regulator, an output voltage of the series regulator and a load amount of the electric load. The control unit specifically controls an input upper limit voltage value of the series regulator to change an allowable value of a voltage difference between input and output of the series regulator.
12 Citations
8 Claims
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1. A vehicle power supply system comprising:
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a first battery connected to a generator driven by an engine of a vehicle;
a second battery connected to an electric load and having an open circuit voltage lower than that of the first battery;
a series regulator connecting the first battery and the second battery;
detection means which detect a temperature of the series regulator, an output voltage of the series regulator and a load amount of the electric load; and
a control unit which controls an input voltage of the series regulator and the output voltage of the series regulator on the basis of detection values of the detection means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification