Apparatus for preventing a vehicle battery from being overdischarged
First Claim
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1. An apparatus for preventing a battery of a vehicle from being overdischarged, comprising:
- (a) first means for measuring the voltage of said battery while an engine of said vehicle is running;
(b) second means responsive to said first means for generating an electric output signal when the battery voltage is below a predetermined value; and
(c) third means responsive to said second means for raising the engine crankshaft rotational speed from an idling speed, defined as occurring when the engine is idling, to a predetermined higher speed when the voltage of said battery is below said predetermined value.
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Abstract
The voltage of the vehicle battery is checked to see whether the voltage is below a predetermined value or not. When the battery voltage is below the predetermined value, the engine crankshaft rotational speed is raised by increasing the amount of air fed to the engine so that the rotational speed of the alternator driven by the engine increases resulting in an increase in the charging current.
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Citations
15 Claims
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1. An apparatus for preventing a battery of a vehicle from being overdischarged, comprising:
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(a) first means for measuring the voltage of said battery while an engine of said vehicle is running; (b) second means responsive to said first means for generating an electric output signal when the battery voltage is below a predetermined value; and (c) third means responsive to said second means for raising the engine crankshaft rotational speed from an idling speed, defined as occurring when the engine is idling, to a predetermined higher speed when the voltage of said battery is below said predetermined value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An apparatus for preventing a battery of a vehicle from being overdischarged, comprising:
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(a) first means for measuring the voltage of said battery while an engine of said vehicle is running; (b) second means responsive to said first means for generating an electric ouput signal when the battery voltage is below a predetermined value; and (c) third means responsive to said second means for raising the engine crankshaft rotational speed from an idling speed, defined as occurring when the engine is idling, to a predetermined higher speed when the voltage of said battery is below said predetermined value, wherein said third means comprises; an electromagnetic valve assembly having first and second input ports respectively communicating with atmosphere and vacuum pressure and an output port; a diaphragm assembly having first and second chambers respectively communicating with said output port of said electromagnetic valve assembly and atmosphere; and linkage means operatively connected to the diaphragm of said diaphragm assembly and a throttle flap for opening the throttle flap to a predetermined angle when the angle of the throttle flap is below said predetermined angle. - View Dependent Claims (13)
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14. An apparatus for preventing a battery of a vehicle from being overdischarged, comprising:
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(a) first means for measuring the voltage of said battery while an engine of said vehicle is running; (b) second means responsive to said first means for generating an electric output signal when the battery voltage is below a predetermined value; and (c) third means responsive to said second means for raising the engine crankshaft rotational speed from an idling speed, defined as occurring when the engine is idling, to a predetermined higher speed when the voltage of said battery is below said predetermined value;
wherein said third means comprises a by-pass passage communicating with the intake passage of said engine upstream and downstream of a throttle flap; andmeans for controlling the amount of air passing through said by-pass passage in response to the output signal of said second means. - View Dependent Claims (15)
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Specification