Method to decouple battery from high level cranking currents of diesel engines
First Claim
1. A method of decoupling a battery during high current cranking of an engine, comprises:
- charging a supercapacitor to a preselected DC supercapacitor voltage from a battery when said battery is above a preselected battery voltage;
switching the supercapacitor to a load and switching said battery off said load;
starting said engine and supplying initial voltage and current until terminal voltage of the supercapacitor is equal to terminal voltage of said battery;
switching said battery to said load in parallel with said supercapacitor;
disconnecting only said supercapacitor from said load; and
,recharging said supercapacitor to said preselected DC capacitor voltage.
1 Assignment
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Accused Products
Abstract
A method of decoupling a battery during high current cranking of an engine comprises charging a supercapacitor bank to a preselected DC supercapacitor voltage from a battery when said battery is above a preselected battery voltage, switching the supercapacitor bank to a load and switching the battery off the load, starting the engine and supplying initial voltage and current until terminal voltage of the supercapacitor is equal to terminal voltage of the battery, switching the battery into parallel with the supercapacitor, disconnecting the supercapacitor from the load, and recharging the supercapacitor to the preselected DC capacitor voltage.
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Citations
12 Claims
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1. A method of decoupling a battery during high current cranking of an engine, comprises:
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charging a supercapacitor to a preselected DC supercapacitor voltage from a battery when said battery is above a preselected battery voltage; switching the supercapacitor to a load and switching said battery off said load; starting said engine and supplying initial voltage and current until terminal voltage of the supercapacitor is equal to terminal voltage of said battery; switching said battery to said load in parallel with said supercapacitor; disconnecting only said supercapacitor from said load; and
,recharging said supercapacitor to said preselected DC capacitor voltage. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification