Suspension system and method for operation of said system

    公开(公告)号:US11667172B2

    公开(公告)日:2023-06-06

    申请号:US16943388

    申请日:2020-07-30

    Abstract: Methods and systems for vehicle suspension are provided. A leveling manifold includes, in one example, a plurality of electrically-activated valves arranged between, on a first end, a rod-side and a piston-side of one or more hydraulic cylinders, and on a second end, a pressure source and a tank, wherein the plurality of electrically-activated valves include a first valve, a second valve, a third valve, and a fourth valve. The leveling manifold further includes a first flow path extending through the first and second valves and from the rod-side to the second end and a second flow path extending through the third and fourth valves and from the piston-side to the second end, the leveling manifold is designed to manage operation of the first, second, third, and/or fourth valves to independently adjust a position and a stiffness of the one or more hydraulic cylinders.

    Steering system for vehicles with independent axles

    公开(公告)号:US12043326B2

    公开(公告)日:2024-07-23

    申请号:US17283982

    申请日:2019-10-09

    CPC classification number: B62D5/09 F15B15/20

    Abstract: A steering system for vehicles with independent axles is disclosed. The system may have a second circuit for control of a second cylinder. The second circuit may have a solenoid valve, with at least four ways and three positions. The solenoid valve may be interposed between a second hydraulic liquid inlet line, a second hydraulic liquid outlet line, and a third operating duct and a fourth operating duct for the passage of hydraulic liquid. The system moreover envisages an electronic unit for management and control of the directional-control solenoid valve, which is operatively connected to a device for detecting the steering angle imposed by the first cylinder and is designed to manage the directional-control solenoid valve as a function of the data detected by the device.

    Method and a system for controlling the ground grip of a wheeled loader

    公开(公告)号:US11447926B2

    公开(公告)日:2022-09-20

    申请号:US16840189

    申请日:2020-04-03

    Abstract: A method for controlling the ground grip of a wheeled loader having a pair of front wheels, a bucket, and at least one boom, comprising measuring the relative position of said front wheels with respect to the ground, detecting the reaching of a critical threshold value by measuring the relative position of the front wheels with respect to the ground, comparing the measurement of the relative position of the front wheels to a critical threshold value, and, when the measurement of the relative position of the front wheels with respect to the ground reaches the critical threshold value, inhibiting a further tilting of the bucket and a further lowering of the at least one boom.

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