Abstract: The control device for a control motor of an engine has: a control information output unit for detecting an operational state of the engine as control information; target value computing unit for obtaining a target value of the motor corresponding to the control information; current value detecting unit for detecting a current value of the motor; motor control signal determining unit for generating a motor control signal for controlling a drive of the motor based on the target value and the current value; drive unit for driving the motor based on the motor control signal; and control state information determining unit for generating control state information indicating a change in the operational state of the engine based on a change in the control information. The target value computing unit corrects the control information based on the control state information so as to obtain a suitable target value.

Abstract: The operational state of the engine is detected and the target value of the motor is computed corresponding to the operational state (step S1); a current value of the motor is obtained (step S2); and the width of a stop target area that is a determination parameter is selected based on the target value and the current value (step S3). The stop target area is obtained based on the selected width of the stop target area and the target value (step S4). If the current value falls within the stop target area, then a motor control signal is determined so as to maintain the current value, and if the current value is beyond the stop target area, then the motor control signal is determined so as to draw the current value toward the target value (steps S6 and S7).

Abstract: In order to provide an internal combustion engine control unit for a jet propulsion type watercraft which can control an internal combustion engine so that a rider can perform risk avoidance safely, a controller 300 is provided, which increases the rotation speed of the internal combustion engine when the throttle open degree detected by a throttle open degree detector 22 which detects the throttle operation by the rider is a predetermined value or lower, and it is judged that the hull 1 is running based on the rotation speed of the engine 2 detected by the rotation speed detector 24, and when a steering handle angle detector 21 detects that the rider performs the risk avoidance operation.

Abstract: In order to provide an internal combustion engine control unit for a jet propulsion type watercraft which can control an internal combustion engine so that a rider can perform risk avoidance safely, a throttle open degree detector 22 which detects a state of the throttle operated by a rider, and a controller 300 which, when the throttle open degree detected by the throttle open degree detector 22 is a predetermined value or lower, keeps the rotation speed of the internal combustion engine 2 at a predetermined value for a predetermined period of time after the throttle open degree has reached the predetermined value or lower, are provided.

Abstract: The control device for a control motor of an engine has: a control information output unit for detecting an operational state of the engine as control information; target value computing unit for obtaining a target value of the motor corresponding to the control information; current value detecting unit for detecting a current value of the motor; motor control signal determining unit for generating a motor control signal for controlling a drive of the motor based on the target value and the current value; drive unit for driving the motor based on the motor control signal; and control state information determining unit for generating control state information indicating a change in the operational state of the engine based on a change in the control information. The target value computing unit corrects the control information based on the control state information so as to obtain a suitable target value.

Abstract: The operational state of the engine is detected and the target value of the motor is computed corresponding to the operational state (step S1); a current value of the motor is obtained (step S2); and the width of a stop target area that is a determination parameter is selected based on the target value and the current value (step S3). The stop target area is obtained based on the selected width of the stop target area and the target value (step S4). If the current value falls within the stop target area, then a motor control signal is determined so as to maintain the current value, and if the current value is beyond the stop target area, then the motor control signal is determined so as to draw the current value toward the target value (steps S6 and S7).

Abstract: In order to provide an internal combustion engine control unit for a jet propulsion type watercraft which can control an internal combustion engine so that a rider can perform risk avoidance safely, a throttle open degree detector 22 which detects a state of the throttle operated by a rider, and a controller 300 which, when the throttle open degree detected by the throttle open degree detector 22 is a predetermined value or lower, keeps the rotation speed of the internal combustion engine 2 at a predetermined value for a predetermined period of time after the throttle open degree has reached the predetermined value or lower, are provided.

Abstract: In order to provide an internal combustion engine control unit for a jet propulsion type watercraft which can control an internal combustion engine so that a rider can perform risk avoidance safely, a controller 300 is provided, which increases the rotation speed of the internal combustion engine when the throttle open degree detected by a throttle open degree detector 22 which detects the throttle operation by the rider is a predetermined value or lower, and it is judged that the hull 1 is running based on the rotation speed of the engine 2 detected by the rotation speed detector 24, and when a steering handle angle detector 21 detects that the rider performs the risk avoidance operation.