Dana Italia S.r.l.

Dana Motion Systems Italia S.r.l.

Pier Paolo Rinaldi

Matteo Dallapiccola

Giacomo Faggiani

Mark Slater

Michelangelo Marini

Mario Gelmini

Andrea Bortoli

Nicola Francesco Musciagna

Mirko Brentari

Sara Gennari

Davide Carpi

Nicoletta Gioia

Methods and systems for a mechanically driven pump are provided. The mechanically driven pump may apply a piston simultaneously to operate as a guillotine blocking valve and a component to transfer motive force. A spring may apply a force to the piston to oppose a force that is applied to the piston via a cam lobe. The mechanically driven pump exhibits a differential pressure at a calibrated orifice during two working phases of the pump (expansion and compression), which provides for a non-zero volumetric efficiency of the mechanically driven pump.

Compact volumetric pump

A gearbox including: a fixed housing; a first wheel housed in the fixed housing; a second wheel housed in the fixed housing; a duct, where the duct is fixed to the gearbox; and a baffle interposed between the first wheel and the second wheel, wherein the duct is configured to transport a fluid to the first wheel, wherein the baffle is configured to transport fluid from the first wheel to the second wheel, and wherein the baffle is fixed to the fixed housing.

Lubricant system including a baffle

Methods and systems for a transmission. In one example, the transmission system includes a first electric motor that is rotationally coupled to a first shaft with a first gear idly mounted thereto and a second electric motor that is rotationally coupled to a second shaft with a second gear idly mounted thereto. The transmission system further includes an intermediate shaft with a third gear fixedly coupled thereto, a first clutch configured to selectively rotationally couple the first gear and the first shaft, and a second clutch configured to selectively rotationally couple the second gear and the second shaft.

System and method for shifting in a dual motor transmission

Methods and systems for a dual motor transmission system that includes an intermediate shaft oriented parallel to both of a first shaft arranged with a first gear mesh, a third gear mesh, and a first low friction engaging device located between the first gear mesh and the third gear mesh and a second shaft arranged with a second gear mesh, a fourth gear mesh, and a second low friction engaging device located between the second gear mesh and the fourth gear mesh, a first electric motor coupled to the first shaft to enable a first reduction ratio and second reduction ratio of the first electric motor between the first shaft and the intermediate shaft, and a second electric motor coupled to the second shaft to enable a first reduction ratio and second reduction ratio of the second electric motor between the second shaft and the intermediate shaft.

System and method for seamless shifting in a dual motor transmission with minimal gears

A method for controlling an engagement of a dog clutch in an electrified drivetrain, comprising: locking a shaft of a transmission; positioning an actuator of the transmission at a prescribed position; commanding an electric machine to rotate at a speed; and updating the engagement threshold position when the electric machine stalls based on the prescribed position of actuator.

Automatic backlash-compensation for a dog clutch in an electrified transmission

A stand-alone block, comprising: a hydraulic cylinder and one or more valves, wherein one or more adduction lines between the valve and the hydraulic cylinder are configured to allow the hydraulic cylinder to be self-purging. The hydraulic cylinder drives and guides a hollow piston, wherein a pass-through hole of the piston is configured to host a rod axially aligned with respect to a centerline of the hollow piston, wherein the hollow piston has a radial clearance formed between an inner surface of the hollow piston and the rod.

Stand-alone, self-purging, hollow-piston hydraulic actuator

A lubrication assembly and operating method are provided herein. The lubrication assembly includes a rotating component an axial recess positioned on an axial side of the rotating component, and a lubricant conveyor that remains stationary relative to the rotating component and extends into the axial recess to form a gap between axial recess and the first lubricant conveyor. The lubricant conveyor directs a lubricant toward the axial recess during rotation to generate a lubricant spray focused in a targeted direction.

Lubrication assembly with a lubricant conveyor

Methods and systems are provided for a lubricant distribution assembly comprising a rotating component with a recessed circumferentially surrounded by a radially outer section, the radially inners side of which forms a surface of an undercut groove. The lubricant distribution assembly further includes a lubricant sump separated from the rotating component by a wall, a hollow tube that delivers lubricant from the lubricant sump to the lubricant distribution assembly and a lubricant deflector positioned within an upper portion of the lubricant distribution assembly and which lies in a plane that is parallel to a first axial side of the rotating component.

Systems for lubricant distribution

A fluid sump for accommodating a lubricating fluid and transmission housing for a vehicle comprising such a fluid sump. The fluid sump may comprise a first compartment for collecting the lubricating fluid, a second compartment in which the lubricating fluid can be brought in contact with a rotating member, and an intermediate compartment having a first opening for introducing the lubricating fluid from the first compartment into the intermediate compartment, a second opening for introducing the lubricating fluid from the intermediate compartment into the second compartment, and a floating element. In one or more examples, the first opening can be opened and closed by the floating element, and the first compartment, the intermediate compartment and the second compartment are provided with ambient pressure.

Fluid sump for accommodating a lubricating fluid

A system and method for lubrication system are provided. The lubrication system includes a floater container including a floater compartment that contains a buoyant floater, where the floater container is coupled to a housing bulkhead and where the floater container includes an inlet opening in a first wall that is off-axis from a horizontal plane and forms an angle with a second wall. Further, the housing bulkhead includes an outlet opening positioned lower than the inlet opening and provides fluidic communication between the floater compartment and a rotating component compartment that contains a rotating component.

Lubrication system with a flow regulating floater container

A wet brake system, a method therefor, and a vehicle including such system, the system comprising: a housing enclosing a brake compartment, at least one friction plate rotatably disposed within the brake compartment, at least one separator plate disposed within the brake compartment, coupled to the housing and configured to be frictionally engaged with the at least one friction plate for braking the at least one friction plate, the at least one friction plate and the at least one separator plate configured to be at least partially submersed in a liquid held within the brake compartment, and a liquid reservoir, wherein a drain port is arranged such that the at least one friction plate when rotating is configured to convey liquid held within the brake compartment to the liquid reservoir via the drain port and a drain channel for draining the brake compartment.

Wet brake system and method of operating a wet brake system

Methods and systems for a transmission are provided. The method includes estimating a stroke position of the hydraulic control piston based on a pressure of a fluid in a hydraulic line and a valve and a coefficient of the hydraulic line, where the hydraulic line is coupled to a chamber of the hydraulic control piston. The method further includes controlling a pressure of fluid delivered from the valve to the hydraulic control piston based on the estimated stroke position to achieve a piston stroke set-point during a filling phase.

Hydraulic system and piston filling control

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.

Growing community of inventors

Arco, Italy

Pier Paolo Rinaldi