Yamaha Hatsudoki Kabushiki Kaisha

Kosuke Hirata

Kazuyuki Maeda

Naoki Kitamura

Tomokazu Takayanagi

Joji Sawaoka

A rider operates a driving source switching lever to switch an operation mode to a normal traveling mode or an auxiliary moving mode. During the normal traveling mode, a motorcycle travels by a driving force generated by an engine. During the auxiliary moving mode, the motorcycle moves at a low speed by a driving force generated by a vehicle driving motor. When the rider operates a forward-backward movement operator during the auxiliary moving mode to put the forward-backward movement operator in a forward movement instruction state, the vehicle driving motor is controlled such that the motorcycle moves forward. When the rider operates the forward-backward movement operator during the auxiliary moving mode to put the forward-backward movement operator in a backward movement instruction state, the vehicle driving motor is controlled such that the motorcycle moves backward.

Straddled vehicle

A motorcycle includes an engine that generates a driving force during a normal traveling mode, and a vehicle driving motor that generates a driving force for moving a vehicle main body forward and backward during an auxiliary moving mode. A traveling speed of the vehicle main body is detected by a speed sensor, and the detected traveling speed is presented to the rider by a speedometer. A rotation speed of the vehicle driving motor or a rotation speed of a gear rotated by the vehicle driving motor is detected by a rotation speed sensor as a physical quantity that changes depending on a moving speed of the vehicle main body during the auxiliary moving mode. The vehicle driving motor is controlled based on the detected rotation speed such that the moving speed of the vehicle main body is close to or coincides with a target speed.

Growing community of inventors

Shizuoka, Japan

Kosuke Hirata