Patent ID: 7665742

Claim:
A hydraulic system comprising a primary lean control system including: a plurality of actuators operatively coupled to a vehicle for providing a desired configuration of the vehicle which tilts at least a portion of the vehicle from an upright position into a desired leaning position having a lean angle when the vehicle enters a turn and which returns the vehicle to the upright position when the vehicle leaves the turn; a valve system operatively coupled to the plurality of actuators for controlling a flow of pressurized fluid from a pump external of the plurality of actuators to the plurality of actuators to energize the plurality of actuators to provide, responsive to the desired configuration of the vehicle, a first configuration of a plurality of first configurations of the vehicle corresponding to the desired configuration of the vehicle when the lean angle is a rightward lean angle, or a second configuration of a plurality of second configurations of the vehicle corresponding to the desired configuration of the vehicle when the lean angle is a leftward lean angle; and an electronic control system which generates, responsive to the desired configuration of the vehicle, a control signal to control the valve system to control the flow of the pressurized fluid to tilt at least the portion of the vehicle from the upright position into the desired leaning position having the lean angle when the vehicle enters a turn and to return the vehicle to the upright position when the vehicle leaves the turn.