A mower with a hybrid electric power system and a method of operation therefor. The mower comprises a drive wheel for propelling the mower, a cutting unit configured to cut grass, a first motor operatively connected to the drive wheel, a second motor operatively connected to the cutting unit, a primary battery and a generator connected to the first motor and the second motor to each independently power the first motor and the second motor, and a control unit configured to switch the mower between operating conditions when it is powered by the primary battery or by the generator. An auxiliary battery is connected to the first motor and can power the first motor to drive the mower when the primary battery is out of charge and the generator is out of fuel.

Provided is an electro-hydraulic drive system including first and second electro-hydraulic transmissions for driving respective wheels, the transmissions each including an electric motor, a hydraulic pump driven by the electric motor, and a hydraulic motor drive by the hydraulic pump. When used in a turf vehicle, such as a zero-turn-radius mower, the electro-hydraulic drive system operates the wheels independently from an engine of the mower, thereby allowing the mower to be moved without having to start the engine. In this way, power consumption is lowered and total efficiency of the mower is increased.

An agricultural harvesting machine is described. In one example, the machine comprises a header, a feed system configured to feed material from the header through a threshing section along a conveyance path, the feed system including a conveyance mechanism that conveys the material from the header to a rotating feed mechanism, and a drive system configured to rotationally drive the feed mechanism during a first state to convey the material along the conveyance path, and to reverse rotation of the feed mechanism during a second state. In one example, a drive system comprises first and second drive mechanisms, and a coupling mechanism configured to selectively couple one of the first or second drive mechanisms to an output mechanism, such as, but not limited to, a rotating feed mechanism in an agricultural harvesting machine.

Methods and systems are described for providing a local electrical power source at a header of a combine harvester. An alternator is mechanically coupled to a header backshaft. The header backshaft is mechanically coupled to a drive mechanism of the combine harvester to cause rotation of the header backshaft which, in turn, causes the alternator to generate electrical power. A power supply circuit transferred electrical power from the alternator to one or more electric devices mounted on the header. In some implementations, the header does not include any physical cables between the combine and the header.

A grass mower is provided with a plurality of rotating shafts passing through a ceiling wall of a mower deck and extending upward, disposed in a side-by-side state; cutting blades respectively linked to the rotating shafts in an internal space of the mower deck; an electric motor mounted at a location to the lateral outside relative to a rotation path of the cutting blades within the mower deck, and having an output shaft extending upward; and a power transmission mechanism positioned above the ceiling wall of the mower deck, and configured to transmit power from the output shaft to the rotating shafts of the cutting blades.

A ZTR mower cruise control system comprising a pair of motion control levers coupled to drives that rotate rear drive wheels at a velocity. A pair of front wheels that are pivoted to steering angles corresponding to any difference between the positions of the levers. A position sensor positioned to provide a signal based on the position of the levers. A controller configured to receive the signal, receive an operator input corresponding to an activation of a cruise control mode, maintain the steering angles at a current position, receive an updated position of the levers from the position sensor after a change in the position of at least one of the levers, maintain the steering angles at an updated position and receive an operator input corresponding to a deactivation of the cruise control mode and cease maintaining the steering angles.

A series-parallel hybrid power cotton picker includes a series-parallel hybrid power system; the series-parallel hybrid system includes an engine, a gearbox, a coupling device, a differential, a generator, battery, a main controller, a walking motor controller, a picking motor controller, a fan motor controller, a packing motor controller, a cotton collection motor controller, and a conveyor motor controller; the engine can transmit the power to the coupling device through the gearbox, and the coupling device couples the power of the engine and the walking motor, and then transmits the power to the wheels through the differential. The present disclosure achieves mechanical decoupling between the various working systems of the cotton picker through distributed electric drive, solving the problems of multiple components, long paths, and inability to adjust operating parameters in real time in traditional cotton picker transmission systems.

A hybrid system for use with utility vehicles includes an electric motor including an output shaft and a conductor configured to alternatively receive power from or send power to an electrical power source. The hybrid system includes an internal combustion engine, a first pulley connected to and rotated by the internal combustion engine, and a clutch mechanism. The clutch mechanism includes a ratchet connected to the output shaft of the electric motor to rotate at a first rotational speed, a pawl carrier driven by the internal combustion engine to rotate at a second rotational speed, and one or pawls coupled to and configured to rotate with the pawl carrier. The one or more pawls are configured to be disengaged from the ratchet when the first and second rotational speeds differ and engaged with the ratchet when the first and second rotational speeds are equal.