Electric power device of vehicle

Abstract

The present invention provides a small-sized, light-duty electric power device. The electric power device of vehicle (10) comprises: an AC generator (12) driven by a internal combustion engine (11) moThe present invention provides a small-sized, light-duty electric power device. The electric power device of vehicle (10) comprises: an AC generator (12) driven by a internal combustion engine (11) mounted on the vehicle to generate power; a power converter (13) commuting current from the generator and transforming voltage; an electric appliance (14) using a portion of the current converted by theunted on the vehicle to generate power; a power converter (13) commuting current from the generator and transforming voltage; an electric appliance (14) using a portion of the current converted by thepower converter; a battery (15) storing a portion of the current converted by the power converter; a switching section (20) receiving running information whether the generator is in operating state, power converter; a battery (15) storing a portion of the current converted by the power converter; a switching section (20) receiving running information whether the generator is in operating state,communicating the power converter and the appliance and stopping the communication between the battery and the appliance when it is in generating state, stopping the communication between the power cocommunicating the power converter and the appliance and stopping the communication between the battery and the appliance when it is in generating state, stopping the communication between the power converter and the appliance and communicating the battery and the appliance when it is not in generating state. Thereby reducing cost of power device and reducing size of the generator and the power connverter and the appliance and communicating the battery and the appliance when it is not in generating state. Thereby reducing cost of power device and reducing size of the generator and the power converter.verter.

Description

technical field [0001] The invention relates to an electric device suitable for a vehicle with an idling stop function. Background technique [0002] The so-called idling stop function refers to the function of turning off the engine to reduce fuel consumption when the car is stopped due to reasons such as waiting for traffic lights. In recent years, this function has been adopted by many vehicles. [0003] A variety of proposals have been made for vehicle power supply devices that are compatible with the above-mentioned idling stop function (see Patent Document 1: Japanese Patent Laid-Open Publication No. 2006-67644). [0004] In this patent document 1, as in this patent gazette figure 1 As shown, the power supply device has a first battery 2 , a second battery 4 and a controller 6 in addition to a generator 1 , a power converter 5 and an electrical consumer 3 . Moreover, when the vehicle is in the idling stop state, first the first battery 2 supplies power to the consum...

AI Technical Summary

Problems solved by technology

[0006] However, if two batteries are configured in this way, the space for installing the batteries and the cost of purchasing the batteries will be increased

In addition, the number of wiring will increase

[0007] Especially from the standpoint of installation space, it is not satisfactory to install two batteries on a small two-wheeled motorcycle

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