摘要:
A passive hydraulic controller is disclosed, in which the volumes V1 and V2 at the two sides of the piston of two or more hydraulic cylinders in each case are connected to one another hydraulically, so that a displacement of the piston in one of the cylinders results in a displacement of the piston in at least one of the other cylinders (follow-up control). The sum of all the piston travels Δs=k1s1+k2s2+ . . . +knsn in hydraulic controllers of said type should ideally always be Δs=0=const, with the proportionality factors k1; k2 . . . kn representing the reciprocal of the piston surfaces of the cylinder, and their signs being dependent on whether the connecting lines between the hydraulic cylinders are crossed or not. Passive hydraulic controllers of the generic type are, however, not positionally stable over time (Δs≠O≠const), in particular under the action of static basic loads. A varying positional error Δs must be taken into consideration, the varying positional error Δs being corrected according to the invention in that in each case when the positional error Δs exceeds a positive positional error limit +Δs which is to be defined, or falls below a negative positional error limit −Δs which is to be defined, a connection is produced between the two volumes V1 und V2 for the purpose of exchanging hydraulic fluid between the two volumes, in that the connection always permits the exchange of hydraulic fluid in only one direction which is determined as a function of the sign of the positional error Δs.
摘要:
Disclosed is an actuator, in particular for a rail vehicle, comprising a fluidic first actuator unit and a control device having a first control unit, wherein the first actuator unit is connected to the first control unit and can be supplied with power from a fluidic power source under the control of the first control unit. Furthermore, a fluidic second actuator unit is provided, and the control device comprises a second control unit, wherein the second actuator unit is connected to the second control unit and can be supplied with power from the fluidic power source under the control of the second control unit. The invention further relates to a vehicle, in particular a rail vehicle, having an actuator according to the invention.
摘要:
A method for limiting the angle between the longitudinal axes of car bodies of a multi-part rail vehicle connected to each other via a joint, wherein each car body is supported on only one bogie. The angle is actively influenced by an electrically controlled activation member connected to the joint, until the angle assumes a setpoint value. The setpoint value is determined from the pivot angles (relative angles) of the bogies relative to the associated car bodies.
摘要:
A spring element with a hydropneumatic strut are positioned between the bogie and the body of a rail car, with the strut having a sliding piston in a cylinder, whereby the piston or the cylinder can be connected with the bogie and the other component can be connected with the body, and the piston area of the cylinder is connected with a hydraulic accumulator. A strut that is easy to service and maintain and does not accumulate any appreciable amount of dirt is created by virtue of the fact that the hydropneumatic strut has a hydraulic height regulator valve or a height sensor connected or connectable with a feedback loop, whereby the position of the piston in the cylinder can be adjusted or determined.
摘要:
The within invention concerns a spring element with a hydropneumatic strut to be positioned between the bogie and the body of a rail car, with the strut having a sliding piston in a cylinder, whereby the piston or the cylinder can be connected with the bogie and the other component can be connected with the body, and the piston area of the cylinder is connected with a hydraulic accumulator. A strut that is easy to service and maintain and does not accumulate any appreciable amount of dirt is created by virtue of the fact that the hydropneumatic strut has a hydraulic height regulator valve or a height sensor connected or connectable with a feedback loop, by means of which the position of the piston in the cylinder can be adjusted or determined.
摘要:
A method for limiting the angle between the longitudinal axes of car bodies of a multi-part rail vehicle connected to each other via a joint, wherein each car body is supported on only one bogie. The angle is actively influenced by an electrically controlled activation member connected to the joint, until the angle assumes a setpoint value. The setpoint value is determined from the pivot angles (relative angles) of the bogies relative to the associated car bodies.
摘要:
The present invention relates to a movement damper for vehicle chassis, in particular rail vehicles, comprising a damper housing in which a damper piston is movably received. In accordance with the invention, the movement damper is characterized in that a sensor for the detection of the movement and/or position of the damper piston relative to the damper housing is arranged in the interior of the damper housing.