Yamaha Hatsudoki Kabushiki Kaisha

Tomoyuki Higashi

Nobuyasu Arimune

Mitsuharu Hasumi

Yuki Kinpara

Tatsuya Moriguchi

A bicycle includes a vehicle-body frame, a front wheel that is a steered wheel, a rear wheel, a crankshaft, a pedal, a transmission to transmit rotation of the pedal to the rear wheel, a motor to apply at least a torque to cause rearward rotation of at least one of the front wheel or the rear wheel, a roll detector to detect at least one of a roll angle or a roll angular velocity of the vehicle-body frame, and a steering detector to detect a direction of steering. When a vehicle speed is zero and a steering angle of the front wheel is not zero, the motor applies, to the at least one of the front wheel or the rear wheel, a torque to maintain the roll angle of the vehicle-body frame based on the detected direction of steering and the at least one of the roll angle or the roll angular velocity.

Growing community of inventors

Shizuoka, Japan

Tomoyuki Higashi