Battery charging device for vehicle
AssigneeNippondenso Co., Ltd.
InventorTadatoshi Asada
Life of this patent
Estimating the term…
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.
Claims29
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.
A battery charging device for a vehicle comprising:
- 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.
A battery charging device for a vehicle comprising:
- 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.
Dependencies are inferred from the claim text.