Battery charging device for vehicle
First Claim
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1. A battery charging device for a vehicle comprising:
- a generator;
a voltage source;
voltage regulating means having a power switch disposed near a vehicle generator, for controlling field exciting current so that the generator output voltage can be regulated to desired voltage;
a transmitting wire;
generator control signal transmitting means, disposed remote from said vehicle generator, for providing a vehicle-side terminal of said transmitting wire with a generator control signal to control generator operating condition;
generator control signal receiving means, disposed near said vehicle generator, for receiving said generator control signal from a generator-side terminal of said transmitting wire and providing said generator output voltage regulating means with said generator control signal;
generator condition signal transmitting means, disposed near said vehicle generator, for providing a generator-side terminal of said transmitting wire with a generator condition signal to represent generating condition of said vehicle generator; and
generator condition signal receiving means, disposed remote from said vehicle generator, for receiving said generator condition signal from said vehicle-side terminal of said transmitting wire;
wherein said generator control signal and said generator condition signal are combined and transmitted by the same transmitting wire.
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Accused Products
Abstract
A generator for vehicle is connected to an end of a transmitting wire through a generator-side signal transmitting and receiving circuit which has a transistor and a comparator. An ECU is connected to the other end of the transmitting wire through a vehicle-side signal transmitting and receiving circuit which has a switching transistor and a comparator. The comparator receives frequency signals from the transistor, and the comparator receives a voltage signal from the transistor. Thus, the generator control signal and the generator condition signal are transmitted by the same transmitting wire.
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Citations
29 Claims
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1. A battery charging device for a vehicle comprising:
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a generator; a voltage source; voltage regulating means having a power switch disposed near a vehicle generator, for controlling field exciting current so that the generator output voltage can be regulated to desired voltage; a transmitting wire; generator control signal transmitting means, disposed remote from said vehicle generator, for providing a vehicle-side terminal of said transmitting wire with a generator control signal to control generator operating condition; generator control signal receiving means, disposed near said vehicle generator, for receiving said generator control signal from a generator-side terminal of said transmitting wire and providing said generator output voltage regulating means with said generator control signal; generator condition signal transmitting means, disposed near said vehicle generator, for providing a generator-side terminal of said transmitting wire with a generator condition signal to represent generating condition of said vehicle generator; and generator condition signal receiving means, disposed remote from said vehicle generator, for receiving said generator condition signal from said vehicle-side terminal of said transmitting wire; wherein said generator control signal and said generator condition signal are combined and transmitted by the same transmitting wire. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A battery charging device for a vehicle comprising:
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voltage regulating means disposed near a vehicle generator for controlling field exciting current; a transmitting wire having a vehicle-side terminal and generator-side terminal; vehicle-side generator control means disposed remote from said vehicle generator for providing said vehicle-side terminal with said generator control signal and receiving a generator condition signal corresponding to generator condition of said vehicle generator from said vehicle-side terminal; and generator-side control means disposed near said vehicle generator for receiving said generator control signal from said vehicle-side terminal and providing said voltage regulating means with said generator control signal to control said generator condition and for providing said generator-side terminal with said generator condition signal.
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16. A battery charging device for a vehicle comprising:
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a battery; a generator having a field coil for generating electric power according to field exciting current supplied to said field coil; voltage regulator for controlling said field exciting current; an electronic control unit for generating command signal according to vehicle condition; a single signal transmitting wire having a vehicle-side terminal connected to said electronic control unit and a generator-side terminal; means connected to said electronic control unit for providing said vehicle-side terminal with a control voltage signal related to said command signal; means connected between said generator-side terminal and said voltage regulator for receiving said control signal and providing said voltage regulator with a signal related to said control signal transmitted to said generator-side terminal; means connected to said voltage regulator for providing said generator-side terminal with a condition signal related to operation of said voltage regulator; and means connected between said vehicle-side terminal and said electronic control unit for receiving said condition signal and providing said electronic control unit with a signal related to said condition signal. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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Specification