초록 ▼

Each of control boxes has an operation lever and an element moving together with the operation lever and a primary sensor for detecting the position of the moving element are arranged in each of the control boxes. A drive unit includes a motor, a movable rack driven by the motor and a secondary sens

Each of control boxes has an operation lever and an element moving together with the operation lever and a primary sensor for detecting the position of the moving element are arranged in each of the control boxes. A drive unit includes a motor, a movable rack driven by the motor and a secondary sensor for detecting the position of the moving rack. A control circuit serves to drive the motor to make any positional difference of the moving element and the movable rack zero. In a case where the position of the moving element does not coincide with that of the movable rack even after a predetermined time period goes by from when the rotation of the motor is started, current supply to the motor is temporarily stopped and then again started. When the control boxes are to be changed over from one to the other, this changeover is allowed only in a case where the control boxes which are to be changed over from one to the other and the drive unit are in neutral position. The drive unit includes a manual gear which can be toothed with the movable rack, and a handle for rotating the manual gear when something wrong happens to the electric system.

대표청구항 ▼

An engine control device for connecting a remote control box having an operation lever to a controlled section of an engine, comprising: a moving element associating with the operation lever; a primary sensor for creating electric signals in response to positions of the moving element; a force trans

An engine control device for connecting a remote control box having an operation lever to a controlled section of an engine, comprising: a moving element associating with the operation lever; a primary sensor for creating electric signals in response to positions of the moving element; a force transmitting member having a drive and driven ends and the driven end being connected to the controlled section of the engine; a drive unit for driving the force transmitting member and including an electric motor rotatable forward and backward, a worm gear system driven by the motor and provided with a drive gear, a movable rack connected to the drive end of the force transmitting member and driven by the drive gear, and a secondary sensor for creating electric signals in response to positions of the movable rack; and a control circuit for controlling the motors to be started and stopped and serving to compare the position of the moving element detected by the primary sensor with that of the movable rack detected by the secondary sensor to drive the motor in such a direction as to eliminate a mutual displacement of these two components.