ROTATING ELECTRICAL MACHINE
1 Assignment
0 Petitions
Accused Products
Abstract
Provided is a rotating electrical machine, including: temperature information acquisition means for acquiring information on a temperature of a brush; rotation information acquisition means for acquiring information on a rotation angle of a rotation shaft; and a wear amount calculation section for acquiring the temperature of the brush based on temperature information including output information of the temperature information acquisition means, and for calculating a total wear amount of the brush by integrating a product of a value corresponding to the temperature of the brush, the value being a wear amount function defined as a wear amount per unit sliding distance of the brush with the temperature of the brush used as a variable, and a value including an rotational speed of a rotor, with respect to time from immediately after start of use of the brush to a current time.
32 Citations
24 Claims
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1-10. -10. (canceled)
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11. A rotating electrical machine, comprising:
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a housing; a rotor including a field winding, the rotor being coaxially fixed to a rotation shaft which is supported by the housing in a rotatable manner; a stator including an armature winding, the stator being fixed to the housing so as to surround the rotor; a slip ring fixed to the rotation shaft; a brush disposed at a position in contact with the slip ring; urging means for urging the brush against the slip ring; temperature information acquisition means for acquiring information on a temperature of the brush; rotation information acquisition means for acquiring information on a rotation angle of the rotation shaft; and a wear amount calculation section for acquiring the temperature of the brush based on temperature information including output information of the temperature information acquisition means, and for calculating a total wear amount of the brush by integrating a product of a value corresponding to the temperature of the brush, the value being a wear amount function defined as a wear amount per unit sliding distance of the brush with the temperature of the brush used as a variable, and a value including an rotational speed of the rotor, with respect to time from immediately after start of use of the brush to a current time. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification