Charge system for charging a battery of a vehicle with a two-way charge controller

Abstract

The invention relates to a charge system for charging a battery of a vehicle, where in the charge system comprises at least one converter for converting an alternating voltage into a direct voltage when the battery is charged as well as for converting a direct voltage into an alternating voltage when an electric motor is operated by the battery, a power system charge connection for connecting an external power supply system to the converter and at least a first switching unit for disconnecting an electrically conductive connection between the converter and the electric motor, with the charge system also having a two-way charge controller which is directly connected to the battery in such a way that it can be disconnected by a third switching unit and has the purpose of stepping down an input charge voltage from the external power supply system during the charging process of the battery and on stepping up an input charge voltage from the battery for charging a capacitor which is connected in parallel between the two-way charge controller and the converter, wherein the two-way charge controller has a charge circuit which is independent of an operating circuit for operating the electric motor by the battery, comprising the battery for charging the battery and the capacitor, wherein the charging circuit comprises a first positive conductor and a negative conductor.

Description

technical field [0001] The invention relates to a charging system for charging a vehicle battery according to the preamble of claim 1 . Background technique [0002] Thanks to the state-of-the-art development of automotive drives, electric motors are increasingly being used in hybrid drives, where one or more electric motors are connected to the internal combustion engine via drive technology, or as independent drive motors for purely electric vehicles, such as Cars, mopeds, motorcycles or bicycles. [0003] The electric machine, which is preferably used together with the internal combustion engine or additionally in a hybrid drive, is generally connected to a battery or a storage battery. For proper charging, for example, the electrical energy recovered from the braking force and supplies the battery or accumulator with electrical energy during the operation of the internal combustion engine. Accordingly, these batteries do not require additional charging, for example fro...

AI Technical Summary

Problems solved by technology

In this case, it is also reasonable that the battery powering the motor can also be powered by the electric energy recovered from the braking force. However, the electric energy recovered in this way is not enough. For example, the electric energy recovered in this way is not enough to drive a car for a long distance.

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