F16H61/425

Hydrostatic transmission and method for braking using the same
10753469 · 2020-08-25 · ·

A hydrostatic transmission for a traction drive of a mobile working machine includes a variable-displacement pump and one or more motors connected to one another in a closed hydraulic circuit. An electronic control unit of the hydrostatic transmission is configured to initiate and to end a braking operation by the hydrostatic transmission if a traveling speed of the mobile working machine reaches a threshold value. The threshold value is adjustable by the electronic control unit automatically or in a manner dependent on a driver demand. The braking torque is also adjustable.

Hydrostatic transmission and method for braking using the same
10753469 · 2020-08-25 · ·

A hydrostatic transmission for a traction drive of a mobile working machine includes a variable-displacement pump and one or more motors connected to one another in a closed hydraulic circuit. An electronic control unit of the hydrostatic transmission is configured to initiate and to end a braking operation by the hydrostatic transmission if a traveling speed of the mobile working machine reaches a threshold value. The threshold value is adjustable by the electronic control unit automatically or in a manner dependent on a driver demand. The braking torque is also adjustable.

WORK VEHICLE AND CONTROL METHOD FOR WORK VEHICLE
20200199850 · 2020-06-25 ·

The controller determines whether the vehicle is in a shuttle motion from the operating position of the forward/reverse travel operating member and the actual traveling direction of the vehicle. The controller determines a target braking force when the vehicle is in the shuttle motion. The controller determines at least one of a target displacement of the travel pump and a target displacement of the travel motor based on the target braking force.

WORK VEHICLE AND CONTROL METHOD FOR WORK VEHICLE
20200199850 · 2020-06-25 ·

The controller determines whether the vehicle is in a shuttle motion from the operating position of the forward/reverse travel operating member and the actual traveling direction of the vehicle. The controller determines a target braking force when the vehicle is in the shuttle motion. The controller determines at least one of a target displacement of the travel pump and a target displacement of the travel motor based on the target braking force.

Hydrostatic transmission with overspeed protection facility
10690244 · 2020-06-23 · ·

A hydrostatic transmission for a traction drive includes a variable-displacement pump and one or more motors coupled to one another in a closed hydraulic circuit. A braking operation by means of the transmission can be initiated in the traction drive by an electronic control unit if there is a risk of overspeeding of an associated internal combustion engine. The braking operation is initiated if at least two activation thresholds are overshot, of which a first activation threshold is variable whereas the further activation threshold is fixed or variable.

Hydrostatic transmission with overspeed protection facility
10690244 · 2020-06-23 · ·

A hydrostatic transmission for a traction drive includes a variable-displacement pump and one or more motors coupled to one another in a closed hydraulic circuit. A braking operation by means of the transmission can be initiated in the traction drive by an electronic control unit if there is a risk of overspeeding of an associated internal combustion engine. The braking operation is initiated if at least two activation thresholds are overshot, of which a first activation threshold is variable whereas the further activation threshold is fixed or variable.

HYDRAULIC SYSTEM FOR A WORKING MACHINE
20200157749 · 2020-05-21 ·

A hydraulic system for a working machine includes a feeding pump; and a plurality of variable displacement hydraulic machines being connected in parallel to the feeding pump; At least one of the variable displacement hydraulic machines being is adapted to drive a ground engagement element of the working machine, and at least one of the variable displacement hydraulic machines is adapted to drive a vibrator for vibrating a ground engagement element of the working machine.

HYDRAULIC SYSTEM FOR A WORKING MACHINE
20200157749 · 2020-05-21 ·

A hydraulic system for a working machine includes a feeding pump; and a plurality of variable displacement hydraulic machines being connected in parallel to the feeding pump; At least one of the variable displacement hydraulic machines being is adapted to drive a ground engagement element of the working machine, and at least one of the variable displacement hydraulic machines is adapted to drive a vibrator for vibrating a ground engagement element of the working machine.

WORK VEHICLE
20200149632 · 2020-05-14 ·

A work vehicle such as a tractor including an engine, a battery, a hydraulic continuously variable transmission, and an electric cylinder, and a power transmission mechanism. The hydraulic continuously variable transmission changes an output of the engine, and changes an angle of a movable swash plate to change a gear ratio thereof. The electric cylinder is driven by electric power supplied from the battery at least while the engine is stopped. With the power generated in the electric cylinder and transmitted, the power transmission mechanism changes the angle of the movable swash plate of the hydraulic continuously variable transmission.

WORK VEHICLE
20200149632 · 2020-05-14 ·

A work vehicle such as a tractor including an engine, a battery, a hydraulic continuously variable transmission, and an electric cylinder, and a power transmission mechanism. The hydraulic continuously variable transmission changes an output of the engine, and changes an angle of a movable swash plate to change a gear ratio thereof. The electric cylinder is driven by electric power supplied from the battery at least while the engine is stopped. With the power generated in the electric cylinder and transmitted, the power transmission mechanism changes the angle of the movable swash plate of the hydraulic continuously variable transmission.