Vehicle power generating system
First Claim
1. A power generating system comprising:
- a power generator having a field winding for generating field magnetic flux and armature windings for producing power-generating outputs, said power generator for being driven by an engine;
AC-DC power converting means for rectifying a voltage outputted from each armature winding and supplying said rectified voltage to an electrical load;
field current control means for controlling a field current supplied to said field winding;
voltage control means for controlling said field current control means to control each of said power-generating outputs produced from said power generator to be a predetermined value;
power generation detecting means for detecting a predetermined quantity of power generation related to a state of power generation of said power generator;
determining means for determining, based on said detected quantity of power generation, an amount of leading phase current to be supplied to each armature winding; and
leading-phase current control means for starting said supply of said leading phase current to each armature winding or increasing said supply based on said amount determined by said determining means, or stopping said supply of said leading phase current thereto or decreasing said leading phase current based on said amount determined by said determining means.
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Accused Products
Abstract
In a power generating system having an AC power generator, a quantity which is related to the state of power generation of the power generator and varies according to the supply of a leading phase current to the power generator, is detected. When the passage of the leading phase current through each armature winding is determined as necessary based on the detected status quantity, the leading phase current is supplied to each armature winding (an increase in the amount of supply of the leading phase current is included). If passage is determined as unnecessary, then the supply of the leading phase current to each armature winding is stopped (a decrease in the leading phase current is included). If so, then a change (improvement) in the state of power generation such as an increase in output or the like due to the above supply can be achieved by supplying the leading phase current thereto when its change is required. When the above change is unnecessary, the supply of the leading phase current thereto can be stopped to suppress a defective condition incident to the supply of the leading phase current thereto, particularly, the rate of change in output current, i.e., an increase in ripple. Owing to the above construction, the supply of the leading phase current to the power generator can be achieved by a simple circuit configuration and the state of power generation can be improved.
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Citations
33 Claims
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1. A power generating system comprising:
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a power generator having a field winding for generating field magnetic flux and armature windings for producing power-generating outputs, said power generator for being driven by an engine; AC-DC power converting means for rectifying a voltage outputted from each armature winding and supplying said rectified voltage to an electrical load; field current control means for controlling a field current supplied to said field winding; voltage control means for controlling said field current control means to control each of said power-generating outputs produced from said power generator to be a predetermined value; power generation detecting means for detecting a predetermined quantity of power generation related to a state of power generation of said power generator; determining means for determining, based on said detected quantity of power generation, an amount of leading phase current to be supplied to each armature winding; and leading-phase current control means for starting said supply of said leading phase current to each armature winding or increasing said supply based on said amount determined by said determining means, or stopping said supply of said leading phase current thereto or decreasing said leading phase current based on said amount determined by said determining means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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30. A power generating system comprising:
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a power generator having a field winding for generating field magnetic flux and armature windings for producing power-generating outputs, said power generator for being driven by an engine; field current control means for controlling a field current supplied to said field winding; voltage control means for controlling said field current control means to control each of said power-generating outputs produced from said power generator to a predetermined value; and leading-phase current control means for supplying a leading phase current to each armature winding, said leading-phase current control means being for controlling and limiting a maximum value of a rate of change in leading phase current to gradually change said leading phase current.
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31. A power generating system comprising:
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a power generator having a field winding for generating field magnetic flux and armature windings for producing power-generating outputs, said power generator for being driven by an engine; field current control means for controlling a field current supplied to said field winding; voltage control means for controlling said field current control means to control each of said power-generating outputs produced from said power generator to be a predetermined value; detecting means for detecting a physical quantity related to a variation in a rotational speed of said engine; leading-phase current control means for supplying a leading phase current to each armature winding and for controlling said supply of said leading phase current to each armature winding; and determining means for determining a magnitude of a variation in said rotational speed of said engine based on said physical quantity; whereby said leading-phase current control means is for supplying said leading phase current to each armature winding when said leading phase current is effective to suppress changes in said engine rotational speed based on generator driving torque.
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32. A power generating system comprising:
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a power generator having a field winding for generating field magnetic flux and armature windings for producing power-generating outputs, said power generator for being driven by an engine; field current control means for controlling a field current supplied to said field winding; voltage control means for controlling said field current control means to control each of said power-generating outputs produced from said power generator to a predetermined value; detecting means for detecting a physical quantity related to vibrations created by said engine; leading-phase current control means for supplying a leading phase current to each armature winding and for controlling said supply of said leading phase current to each armature winding; and determining means for determining a magnitude of said engine vibrations based on said physical quantity; whereby said leading-phase current control means supplies said leading phase current to each armature winding when said leading phase current is effective to suppress changes in said engine vibrations based on generator driving torque.
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33. A power generating system comprising:
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a power generator having a field winding for generating field magnetic flux and armature windings for producing power-generating outputs, said power generator for being driven by an engine; field current control means for controlling a field current supplied to said field winding; voltage control means for controlling said field current control means to control each of said power-generating outputs produced from said power generator to be a predetermined value; detecting means for detecting a physical quantity related to a temperature of a predetermined portion of said power generator; leading-phase current control means for supplying a leading phase current to each armature winding and for controlling said supply of said leading phase current to each armature winding; and determining means for determining based on said physical quantity whether said power generator is at a predetermined temperature range; whereby said leading-phase current control means is for stopping said supply of said leading phase current to each armature winding and reducing said leading phase current when said power generator is determined as being in said predetermined temperature range and is for starting said supply of said leading phase current to each armature winding and increasing said leading phase current when said power generator is determined as being outside said predetermined temperature range.
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Specification