Wheel steering system

A wheel steering system for steering wheels by an actuator, comprising:

• a suspension mechanism that suspends the wheels;
• right and left hub carriers that are supported by the suspension mechanism;
• right and left tie rods that extend along a vehicle width direction, and have outer ends in the vehicle width direction thereof pivotally connected to the right and left hub carriers;
• a Watts link that has inner ends in the vehicle width direction of the right and left tie rods pivotally attached thereto so as to be pivotable about a pivot axis thereof;
• and
• a connecting beam that laterally bridges the right and left hub carriers along the vehicle width direction to connect them with each other,
• wherein
• the actuator and the Watts link are arranged above springs of the suspension mechanism,
• the Watts link is connected with the actuator so as to be displaceable substantially along the vehicle width direction when a driving force of the actuator is inputted to the Watts link,
• the suspension mechanism is a torsion-beam suspension mechanism having a torsion beam, and
• an axis of the connecting beam runs through a torsion center of an axle beam including the torsion beam.