| 摘要 |
PURPOSE:To surely detect the trouble of a motor, by supplying a drive signal to the motor for a prescribed time during the application of an operation confirming instruction to cause the test run of the motor. CONSTITUTION:A confirmation switch 24 and a monostable multivibrator 26 are provided in a control circuit comprising an anti-skid control circuit 14, a relay coil 18, power transistors Tr11-Tr13 and solenoids 16a-16c. When an ignition switch is put in an engine start position, the confirmation switch 24 is turned on and the multivibrator 26 generates an output pulse signal et for a prescribed time and a transistor Tr10 is turned on to energize the relay coil 18 to connect relay contacts 18r to each other to drive a motor 30 for the prescribed time. At that time, if the motor 30 does not sound like moving, the motor or others are regarded as defective. |
