초록 ▼

A self-contained apparatus for charging a battery on an electrically powered turf maintenance vehicle. The charger includes an AC to DC converter for accepting a source of AC power and providing a DC voltage, a sensor for measuring the voltage level of the battery, and a controller for determining t

A self-contained apparatus for charging a battery on an electrically powered turf maintenance vehicle. The charger includes an AC to DC converter for accepting a source of AC power and providing a DC voltage, a sensor for measuring the voltage level of the battery, and a controller for determining the voltage of the battery and for changing the charge rate of the battery. The apparatus also includes visual indicators for warning an operator of normal and abnormal charge conditions of the battery, as well as the remaining charge of the battery. Further, the controller uses a plurality of timers for determining the length of charge times and comparing the values of the timers with count values, wherein if the values exceed the count values, then a visual indicator is lit and charging is terminated. The apparatus is mounted in a box-type shell on-board the turf maintenance vehicle.

대표청구항 ▼

[ What is claimed is:] [1.] A self-contained battery charger apparatus for charging a battery for an electrically powered turf mower, the battery having a voltage, comprising:a) an AC to DC converter for accepting a source of AC power and providing a DC current source output;b) a regulator device op

[ What is claimed is:] [1.] A self-contained battery charger apparatus for charging a battery for an electrically powered turf mower, the battery having a voltage, comprising:a) an AC to DC converter for accepting a source of AC power and providing a DC current source output;b) a regulator device operatively connected between said converter for receiving said current source output and the battery, wherein said regulator device is responsive to control signals for selectively providing said current source output to the battery;c) first sensor means for measuring the voltage of the battery and providing a first voltage signal;d) second sensor means for measuring the current delivered to the battery and providing a second voltage signal; ande) controller means, operatively connected to said first and second sensor means and said regulator device, for determining the voltage of the battery from said first voltage signal, for determining the current provided to the battery from said second voltage signal, and for providing a pulse width modulated control signal to said regulator device to provide a periodic constant current level to the battery based on said determined battery voltage and current.