Patent ID: 8657083
Filing Date: 2014-02-25
Classification: E02F

Abstract:
1. A method for damping relative movements occurring between a first and a second part of a work vehicle during advance of the vehicle, which parts are interconnected by means of at least one hydraulic actuator, comprising advancing the vehicle by rolling the vehicle by way of ground-engaging elements, repeatedly detecting a hydraulic fluid pressure associated with the actuator resulting from rolling the vehicle, determining whether a damping condition is present based on a predetermined change in values of the hydraulic fluid pressure that is detected, if the determined damping condition is present, controlling a displacement of a variable displacement hydraulic motor arranged downstream of the actuator by initiating an energy recovery phase during which flow communication between a chamber of the actuator and the motor is opened and hydraulic fluid is transmitted from the actuator to the motor so that energy from the hydraulic fluid is recovered by being converted to a rotational energy in the motor, transmitting the recovered energy from the motor to a power source, and after termination of the energy recovery phase, automatically moving the first and second parts relative to one another to a relative position existing prior to determining whether the damping condition is present.