| 摘要 |
<p>PURPOSE:To prevent an electric motor from mishandling in advance by stopping the electric motor by means of a driving control means when an abnormality of the electric motor operation against the instruction for operating the electric motor for driving such as for seat and etc. is detected. CONSTITUTION:When using for a device to adjust a position of a seat by an electric motor 44d, if an instruction signal of operation is outputted to a seat control box 40 by operating a manual switch 41, an electric motor 44b is driven by an operating signal via a driving circuit 44a. At this time, a position changing amount is detected by a position detecting sensor 44c and it is fed back to the control box 40 and the above instruction signal of operation is compared with the position signal to decide whether the function of the motor 44b is normal or not. When decided 'abnormal', a transistor 60d is put on by a signal outputted to a line 60c to open a solenoid switch 60a to stop the motor 44b.</p> |
