Fuzzy controller for charger for electric vehicle

A fuzzy controller and charger technology, applied in electric vehicles, current collectors, battery circuit devices, etc., can solve the problems of wasting electric energy, unable to grasp the power-off time of the charger well, and insufficient battery charging, and achieve the control method. Simple, convenient and quick connection, easy to design and produce the effect
CN103490484AInactive Publication Date: 2014-01-01CHANGZHOU MEITE PRECISION MOTOR
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
CHANGZHOU MEITE PRECISION MOTOR
Publication Date
2014-01-01
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

The invention relates to a fuzzy controller for a charger for an electric vehicle. The fuzzy controller adopts a fuzzy control technology to control supply or cut off of an alternating-current power supply to the applicable charger, determines whether the charger is converted in a floating-charge or charge-stopping state by judging the size of the current of the alternating-current power supply inputted into the charger of the electric vehicle roughly, sets the floating-charge delay time to make up the error of judgment, provides the certain floating-charge time for batteries, and sets the overtime counting time to limit the abnormal working time of the charger so as to prevent the faults of the system from expanding.
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Description

technical field

[0001] The invention relates to a fuzzy controller for an electric vehicle charger, which uses fuzzy control technology to control the supply and disconnection of an AC power supply to an applicable charger according to a set approximate control value. Background technique

[0002] The electric vehicle charger is a very widely used battery charging device. The electric vehicle chargers used today are generally intelligent. Power supply, which is usually connected to the AC mains grid in two ways.

[0003] 1. Directly connect the charger to the AC power grid through the plug-socket. This connection method must be manually pulled out to cut off the power supply. It is difficult to grasp the power-off time of the charger. Too early will lead to insufficient charging of the battery, which will easily polarize the battery plate, and too late a power outage will waste electric energy, especially for the charger that cannot enter the floating charge or stop chargin...

Claims

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