APPARATUS AND METHOD FOR DETECTING POWER ABNORMALITY OF ENGINE-TYPE FORKLIFT TRUCK
First Claim
1. An apparatus for detecting power abnormality of an engine-type forklift truck, the apparatus comprising:
- a power supply unit including a pair of batteries so as to supply power to an electric device included in an engine-type forklift truck;
an engine control unit (ECU) which receives power from the power supply unit;
an equalizer which is provided between the power supply unit and the ECU so as to maintain a voltage balance between the pair of batteries and adjust a voltage of power supplied to the ECU; and
an abnormality detecting unit which determines whether abnormality is generated in the equalizer by comparing voltage input from the pair of batteries with a voltage input from any one of the pair of batteries, and detecting whether the pair of batteries has the voltage balance.
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Accused Products
Abstract
The present disclosures relates to an apparatus and a method for detecting power abnormality of an engine-type forklift truck, and the apparatus for detecting power abnormality of an engine-type forklift truck includes: a power supply unit including a pair of batteries so as to supply power to an electric device included in an engine-type forklift truck; an engine control unit (ECU) which receives power from the power supply unit; an equalizer which is provided between the power supply unit and the ECU so as to maintain a voltage balance between the pair of batteries and adjust a voltage of power supplied to the ECU; and an abnormality detecting unit which compares a voltage input from the pair of batteries with a voltage input from any one of the pair of batteries, and detects abnormality in the voltage balance.
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Citations
10 Claims
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1. An apparatus for detecting power abnormality of an engine-type forklift truck, the apparatus comprising:
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a power supply unit including a pair of batteries so as to supply power to an electric device included in an engine-type forklift truck; an engine control unit (ECU) which receives power from the power supply unit; an equalizer which is provided between the power supply unit and the ECU so as to maintain a voltage balance between the pair of batteries and adjust a voltage of power supplied to the ECU; and an abnormality detecting unit which determines whether abnormality is generated in the equalizer by comparing voltage input from the pair of batteries with a voltage input from any one of the pair of batteries, and detecting whether the pair of batteries has the voltage balance. - View Dependent Claims (2, 3, 4, 5)
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6. A method for detecting power abnormality of an engine-type forklift truck, the method comprising:
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a starting operation of driving an engine of an engine-type forklift truck; a voltage detecting operation of detecting a voltage of each of a pair of batteries supplying power to an electric device included in the engine-type forklift truck; a voltage balance determining operation of comparing a difference between the detected voltages of the pair of batteries with a predetermined voltage value; and a warning operation of generating, by a warning unit, at least one of a warning sound and warning light when the difference in the voltage between the pair of batteries is equal to or larger than the predetermined voltage value in the voltage balance determining operation. - View Dependent Claims (7, 8, 9, 10)
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Specification