Driving apparatus for starting an engine with a starting motor energized by a capacitor
First Claim
1. A driving apparatus for supplying electric power to a starter motor coupled to a crankshaft of an engine mounted on a motor vehicle for driving the starter motor, and starting the engine with the starter motor, said driving apparatus comprising:
- a battery;
an engine starter for starting an engine with electric power from said battery;
a plurality of large-capacitance capacitors;
switching means for selectively connecting said capacitors to said battery and said starter;
voltage detecting means for detecting voltages across said capacitors; and
control means for controlling said switching means to connect one of said capacitors to said battery when the voltage across said one capacitor, detected by said voltage detecting means, is lower than a predetermined voltage, and to connect one of said capacitors to said starter when the voltage across said last-mentioned one capacitor, detected by said voltage detecting means, is higher than said predetermined voltage.
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Accused Products
Abstract
An engine starter system for driving an engine starter with electric power from a battery mounted on a motor vehicle has a pair of large-capacitance capacitors which are selectively connected to the battery and the starter. One of the capacitors is connected to the battery and charged thereby when the detected voltage across the one capacitor is lower than a predetermined voltage, and the other capacitor which is charged sufficiently enough is connected to the starter. Electric energy whose voltage is higher than the predetermined voltage is therefore continuously supplied to the starter to start the engine.
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Citations
5 Claims
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1. A driving apparatus for supplying electric power to a starter motor coupled to a crankshaft of an engine mounted on a motor vehicle for driving the starter motor, and starting the engine with the starter motor, said driving apparatus comprising:
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a battery; an engine starter for starting an engine with electric power from said battery; a plurality of large-capacitance capacitors; switching means for selectively connecting said capacitors to said battery and said starter; voltage detecting means for detecting voltages across said capacitors; and control means for controlling said switching means to connect one of said capacitors to said battery when the voltage across said one capacitor, detected by said voltage detecting means, is lower than a predetermined voltage, and to connect one of said capacitors to said starter when the voltage across said last-mentioned one capacitor, detected by said voltage detecting means, is higher than said predetermined voltage. - View Dependent Claims (2, 3, 4, 5)
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Specification