| 摘要 |
Provided is a rotating electrical machine, including: a housing; a rotor coaxially fixed to a rotation shaft which is supported by the housing in a rotatable manner; a stator fixed to the housing so as to surround the rotor; a slip ring fixed to the rotation shaft; a brush; 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. |
