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

摘要

A steering damper system for a saddle riding type vehicle having an MR damper includes a damping force calculating unit arranged to calculate a damping force according to a steering angle speed, and an adjusting command output unit arranged to determine a running state from a vehicle speed and a steering angle detected by sensors, with reference to a reference table, and correcting the damping force calculated according to the running state. The reference table has areas divided by a steering angle range according to vehicle speed, and damping force adjustment factors according to running states are assigned to these areas. The steering angle range dividing the areas becomes narrower with an increase in vehicle speed, to accurately reflect the running states of the vehicle. A proper damping force can be generated according to a running state of the vehicle. The steering damper system eases the rider's burden accompanying steering operations, and is excellent in controllability.

主权项

1. A steering damper system comprising:
a damper arranged to generate a steering damping force; a storage unit arranged to store control information in which areas for determining an amount of adjustment of the damping force are divided by a steering angle range according to vehicle speed; an adjusting command output unit arranged to output a damping force adjusting command based on the control information stored in the storage unit according to one of the areas to which a vehicle speed and a steering angle belong; a damping force command output unit arranged to output a damping force command to the damper according to the damping force adjusting command; and a damper driver arranged to drive the damper and to adjust the damping force based on the damping force command; wherein the control information stored in the storage unit includes a first steering angle range corresponding to a steering angle range applicable when the vehicle is in a cornering state; the adjusting command output unit is arranged to output an adjusting command to generate a first damping force when the vehicle speed and the steering angle belong to an area inside the first steering angle range, and to output an adjusting command to generate a second damping force smaller than the first damping force when the vehicle speed and the steering angle belong to an area outside the first steering angle ranged; and the first steering angle range becomes narrower with an increase in the vehicle speed.