| 摘要 |
<p>PURPOSE:To permit a steering operation to be conducted even if all of an electric motor control circuit, a clutch control circuit and a power source control circuit is defected, by connecting the above three circuits to a power source in parallel. CONSTITUTION:An electric motor control circuit 70, a clutch control circuit 79 and a power source control circuit 80 are connected to a power source 71 in parallel. The clutch control circuit 79 receives a signal from an electric motor input detecting device 78. The power source control circuit 80 receives a signal from a clutch input detecting device 82, and stores operational conditions of an electric motor and an electric clutch. If any signals defferent from the signal stored by the control circuit 80, the control circuit 80 acts to stop the operations of the electric motor and the electric clutch by turning off a power switch or a manual power switch 72. The electric motor control circuit 70 independently controls the electric motor in response to an input from an input torque irrespective of the other two circuits, thus permitting an electric or a manual steering operation.</p> |
