Systems and methods for in-vehicle charging of pallet jack batteries
First Claim
1. A method for in-vehicle charging of a pallet jack batteries, the method comprising:
- monitoring a voltage level of a power source associated with a host vehicle;
based on the monitoring, configuring an interconnecting circuit associated with a pallet jack battery stack of a pallet jack to enable charging of the pallet jack battery stack at a voltage level of the power source associated with the host vehicle;
electrically coupling the pallet jack battery stack to the power source; and
charging the pallet jack battery stack from the power source.
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Accused Products
Abstract
Systems and methods for in-vehicle charging of pallet jack batteries are provided. An example system allows using a power source of a host vehicle configured to provide power at voltage levels lower than the operating voltage of the pallet jack battery stack. The system may allow, for example, charging a 24 volts pallet jack battery stack from a 12 volts power source of the host vehicle. The system may further comprise an interconnecting circuit having a plurality of contactors electrically coupling the batteries in parallel for charging and serially for discharging. The system may further comprise a voltage monitoring circuit to detect whether the pallet jack is connected to the host vehicle power source for charging. Based on the detection, the voltage monitoring circuit may reconfigure the interconnecting circuit to electrically couple the pallet jack batteries in parallel.
4 Citations
20 Claims
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1. A method for in-vehicle charging of a pallet jack batteries, the method comprising:
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monitoring a voltage level of a power source associated with a host vehicle; based on the monitoring, configuring an interconnecting circuit associated with a pallet jack battery stack of a pallet jack to enable charging of the pallet jack battery stack at a voltage level of the power source associated with the host vehicle; electrically coupling the pallet jack battery stack to the power source; and charging the pallet jack battery stack from the power source. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A system for in-vehicle charging of pallet jack battery stack, the system comprising:
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a plurality of configuring contactors electrically coupled to a pallet jack battery stack; an input contactor electrically coupled to the pallet jack battery stack; an input connector electrically coupled to the input contactor connector associated with a power source; and a voltage monitoring circuit configured to; monitor a voltage level of the input connector, determine that the voltage level exceeds a predetermined voltage threshold, and based on the determination, activate the plurality of configuring contactors and the input contactor to charge the pallet jack battery stack from the power source. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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20. A system for in-vehicle charging of a pallet jack battery stack, the system comprising:
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a pallet jack battery stack; a plurality of configuring contactors electrically coupled to the pallet jack battery stack; an input contactor electrically coupled to the pallet jack battery stack; an input connector electrically coupled to the input contactor; and a voltage monitoring circuit configured to; monitor a voltage level of the input connector associated with a power source; determine that the voltage level exceeds a predetermined voltage level; based on the determination, selectively activating the plurality of configuring contactors to electrically reconfigure two or more multiples of batteries associated with the pallet jack battery stack from a serial connection to a parallel connection; activate the input connector with a predetermined delay after the plurality of configuring contactors are activated; and charge the pallet jack battery stack from the power source.
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Specification