Yamaha Hatsudoki Kabushiki Kaisha

Masashi Matsuo

Nobuo Hara

Yasunobu Harazono

Taichi Sato

Tatsuya Nagata

Yuki Yamaguchi

Motoaki Deguchi

Eisuke Furuse

A marine vessel propulsion system includes a propulsive force generator to generate a propulsive force, a drive source to drive the propulsive force generator, and a controller configured or programmed to control the drive source to perform marine vessel maneuvering-related functions including at least one limited function. The controller includes an interface, and is further configured or programmed to include a restriction unit to restrict a control operation for the limited function, and a restriction cancellation unit to cancel the restriction effected by the restriction unit to permit the control operation for the limited function if a predetermined keycode is inputted from the interface or is registered in the controller.

Marine vessel propulsion system, communication terminal, and keycode server

A vehicle includes left and right front wheels, a left shock absorber, a right shock absorber, a linkage mechanism including a right side member, a left side member, a plurality of cross members, and an air bag housing case having a bottom surface and side surfaces, and housing an undeployed air bag in a housing space defined by the bottom surface and the side surfaces. The air bag housing case is located behind the linkage mechanism in a front-rear direction and below an upper end of a handlebar in a top-bottom direction, and at least partially located above a lower end of a movable region of the right side member, the left side member, and the cross members of the linkage mechanism. The bottom surface is disposed along a surface including a rear portion of the movable region when seen from a side of the vehicle.

Vehicle with linkage mechanism

A steering damper control apparatus includes an MR damper having an adjustable steering damping force, a suspension pressure sensor that detects a pressure of a front suspension, a command value output unit that determines a damping force command value according to a pressure change rate of the front suspension based on a detection result of the suspension pressure sensor, and a damper driver that causes the MR damper to generate a damping force corresponding to the damping force command value. At a point of time when steering becomes easily shakable, the damping force corresponding to the damping force command value is generated to prevent shaking of the steering beforehand.

Steering damper control apparatus, and a saddle riding type vehicle having the same

A steering damper control apparatus includes a steering damper configured to generate a damping force which acts on a steering device, a pressure sensor configured to detect a pressure of a front wheel suspension, a steering angle sensor configured to detect a steering angle of the steering device, and a damping force adjuster configured to adjust the damping force of the steering damper with one of a first command value which is a damping force command value according to a change rate of the pressure, and a second command value which is a damping force command value according to a steering angular speed, based on each detection result of the pressure sensor and steering angle sensor.

In a steering damper control apparatus, when a command value output unit detects an idle spin of a rear wheel, a damper driver increases a damping force of an MR damper to be higher than a damping force thereof used when the rear wheel is not spinning idly. Therefore, skidding of the rear wheel is prevented to prevent a posture change of a motorcycle. As a result, a driving direction of the rear wheel deviating from a traveling direction is prevented to efficiently use the drive of the rear wheel during traveling.

Growing community of inventors

Shizuoka, Japan

Masashi Matsuo