| 摘要 |
<p>PURPOSE:To permit the detection of racing and sliding surely, by a method wherein the output of a rotating number changing rate operating means is inputted into a plurality of comparison means while the outputs of these comparison means are inputted into corresponding time limit means respectively. CONSTITUTION:A changing rate operating means 41 inputs the output signal Fr of a rotating number detector to operate the changing rare of the number of rotation of a motor and output it to a racing and sliding detecting means 42. Respective comparison means 421a-421c output predetermined signals when the values of changing rate of the number of rotation operated by the changing rate operating means 41, become larger than respective racing and sliding detecting levels Fa-Fc. Then, time limit means 422a-422c, provided so as to correspond to respective comparison means, output signals SLa-SLc when the predetermined signals, outputted from respective comparison means, are continued longer than predetermined times Ta-Tc. An outputting unit 423 inputs the output signals SLa-SLc, outputted from respective time limit units and outputs a racing and sliding detecting signal SL.</p> |
