US 6,473,684 B2 · Constant vehicle speed maintaining device for motorcycle

Abstract

To provide an auto-cruise canceling device for maintaining a good operating response of the vehicle. A DC servo-motor is used as an actuator for regulating a throttle opening during auto-cruising. When a throttle grip is turned during regulation of the throttle opening by the servo-motor, namely, during a cruising state, a turning force transmitted to a throttle drum through a throttle cable causes a variation in the load on the motor. An ECU detects load variations based on the current in the servo-motor. If the load variation is not less than a predetermined value, it is judged that a rider's cruise canceling action has been made, and bias of the servo-motor is stopped, thereby canceling the cruising state.

Claims19

Dependent claims

A constant vehicle speed maintaining device for a motorcycle, comprising:

a throttle opening control means for controlling a throttle opening by a turning torque of a throttle grip;
a DC servo-motor for maintaining the throttle opening at a current vehicle speed in response to a constant vehicle speed maintaining instruction;
a load detecting means for detecting a load on said DC servo-motor when said DC servo-motor is operating in response to said constant vehicle speed maintaining instruction;
and
a control means for canceling the constant vehicle speed maintenance and stopping the operation of said DC servo-motor when the load on said DC servo-motor detected by said load detecting means is not less than a predetermined value.

2 more elements

Dependencies are inferred from the claim text.

Constant vehicle speed maintaining device for motorcycle

Life of this patent

Constant vehicle speed maintaining device for motorcycle

Life of this patent

Abstract

Claims19