US 11,628,894 B2Granted

Hydrostatic steering arrangement

AssigneeOgnibene Power S.P.A.

InventorClaudio Ognibene

Life of this patent

Estimating the term…

Loading patent…

Abstract

A steering arrangement for a vehicle includes: a hydrostatic steering unit provided with two work ports, a high-pressure port, a low-pressure port, a main branch of the flow arranged between the work ports and the high-pressure port and comprising a dosing device, and an amplification branch arranged between the work ports and the high-pressure port, in parallel with the dosing device, and comprising a flow-rate regulating device of the electrically actuated type, a steering shaft provided with a first end adapted for being connected to a steering member and a second end adapted for being connected to the hydrostatic steering unit, an electric motor configured to set the steering shaft in rotation, and an electronic control unit configured to actuate the flow-rate regulating device as a function of a parameter indicative of an operating condition of the vehicle.

Claims13

Dependent claims

A steering arrangement (10) for a vehicle (1) comprising:

a hydrostatic steering unit (65) provided with two work ports (80,85), a high-pressure port (70), a low-pressure port (75), a main branch of the flow (95) arranged between the work ports (80,85) and the high-pressure port (70) and comprising a dosing device (90), and an amplification branch (120) arranged between the work ports and the high-pressure port, in parallel to the dosing device, and comprising a flow-rate regulating device (125) of the electrically actuated type,
a steering shaft (60) provided with a first end adapted for being connected to a steering member (55) and a second end adapted for being connected to the hydrostatic steering unit (65),
an electric motor (185) configured to set the steering shaft (60) in rotation, and
an electronic control unit (220) configured to actuate the flow-rate regulating device (125) as a function of a parameter indicative of an operating condition of the vehicle.

1 more element

Dependencies are inferred from the claim text.

Facts

Application: 16/912,748Filed 26 Jun 2020
Priority: IT 1020190000105391 Jul 2019
Published: US 2021/0001930 A17 Jan 2021
Granted: 18 Apr 2023
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

B62D 5/093
Characterised by means for actuating valves: telemotor driven by steering wheel movement
B62D 49/0692
Adapted for multi-purpose use: characterised by the particular arrangement of control devices, e.g. having more than one control stand, operable…
B62D 5/0415
The axes of motor and steering column being parallel: the axes being coaxial
B62D 5/0463
Controlling the motor: calculating assisting torque from the motor based on driver input