Patent classifications
F02D31/00
GENSET ENGINE PARALLELING CONTROLS, DEVICES, SYSTEMS, AND METHODS
A device to control a genset engine may use multiple feedback loops to provide a fast stable response to load changes. An outer feedback loop may receive frequency measurements and power measurements of a genset engine and determine a dispatch adjustment comprising a frequency setpoint based on the frequency measurements and power measurements. A middle feedback loop may comprise a double deadband droop filter that periodically generates a pulse based on the frequency setpoint and the power measurements. The middle feedback loop may update an inner loop setpoint based on the pulse. An inner feedback loop may alter a target fuel valve reference of the genset engine based on the inner loop setpoint generated by the second controller and a fuel valve droop.
Energy packet control of generator prime mover
A controller may use energy packets to control a prime mover of a machine. The controller may include an energy packet measurement control to calculate energy packets and convert the energy packets into a fuel valve reference. Further, a frequency control may receive system feedback associated with the monitored machine and generate a frequency correction based on the system feedback. The controller may add the energy packet value and the frequency correction to determine a prime mover power reference and provide the prime mover power reference to a fuel valve control of the machine.
ENERGY PACKET CONTROL OF GENERATOR PRIME MOVER
A controller may use energy packets to control a prime mover of a machine. The controller may include an energy packet measurement control to calculate energy packets and convert the energy packets into a fuel valve reference. Further, a frequency control may receive system feedback associated with the monitored machine and generate a frequency correction based on the system feedback. The controller may add the energy packet value and the frequency correction to determine a prime mover power reference and provide the prime mover power reference to a fuel valve control of the machine.
Speed limiting system and method
A system and method for limiting a speed of a vehicle is disclosed. The vehicle includes an ECU in communication with and configured to control the engine. The ECU has a plurality of pins, a jumper plug connected to the plurality of pins, and a cap selected from a group of caps, each of which is configured to create a different limit circuit when installed on the jumper plug. The ECU is configured to limit the speed of the vehicle to a predetermined speed when the limit circuit is detected by the ECU based on the detected cap. The ECU, jumper plug, and cap are covered by a cover secured to the frame of the vehicle by fasteners that require a tool to remove.
Hand-held power tool and thereto related control system and use and method of controlling
A hand-held power tool comprising an internal combustion engine (4), a working tool (6), a centrifugal clutch (8), and a control system (10) is disclosed. The engine (4) has a clutch-in speed, above which the engine (4) drives the working tool (6). The control system (10) comprises a rotation speed sensor (12), and a speed limitation controller (14), which is configured to limit an engine speed at a limitation speed below the clutch-in speed. It is active or activated during a starting procedure of the internal combustion engine (4). The control system (10) is configured to deactivate the speed limitation controller (14) upon sensing at least one acceleration at a level above the limitation speed and sensing at least one deceleration at a level above the limitation speed, such that the engine (4) is rotatable above the limitation speed to drive the working tool (6).
PRIME MOVER RPM LIMITING CONTROL
A side-by-side off-road utility vehicle comprising a vehicle operational status switch for controlling the operational status of the vehicle, a side-by-side seating structure, a plurality of safety restraint devices operable to retain one or more vehicle passenger in the side-by-side seating structure, and a prime mover RPM controller. The prime mover RPM controller operable to output commands to the one or more prime mover of the vehicle to limit a rotational speed of the prime mover(s) when the vehicle is in an On operational status and a selected one or more of the one or more safety restraints is in a disengaged status.
CONSTRUCTION VEHICLE
Provided is a construction vehicle including: a rolling-use hydraulic pump coupled to an output shaft of an engine and supplying hydraulic oil to a rolling-use hydraulic circuit; a task-use hydraulic pump coupled to the output shaft of the engine and supplying the hydraulic oil to a task-use hydraulic circuit; and an overspeed suppression mechanism configured to activate the task-use hydraulic pump to suppress overspeed of the engine when a load equal to or greater than allowable rotation speed is applied from the rolling-use hydraulic pump to the output shaft of the engine.
Fast grid synchronization
A method of operating a genset (1), wherein an internal combustion engine (2) drives a generator (3), wherein a kinematic parameter characteristic for a rotation of a rotor (13) of the generator (3) and an electrical parameter characteristic for a frequency and/or a phase of a power supply network (4) are directly or indirectly detected, wherein at least one deviation of the kinematic parameter from the electrical parameter is used in a control of the mechanical power output of the internal combustion engine (2) before or during a connecting of the generator (4) to the power supply network (4) in order to supply electrical power to the power supply network (4), wherein a control intervention for a control of the mechanical power output of the internal combustion engine (2) using the control law is starting to fire a pluralitypreferably allof previously unfired cylinders (11) and/or stopping to fire a pluralitypreferably allpreviously fired cylinders (11).
Generator set exercising system
Systems and apparatuses include a control unit structured to communicate with a first generator set, a second generator set, and a third generator set, operate the first generator set as an output generator in an exercise mode, and operate the second generator set and the third generator set as load generators in the exercise mode to use electrical power produced by the first generator set. The second generator set uses a second genset portion of the electrical power and the third generator set uses a third genset portion of the electrical power.
Staple cartridge having staple cavities extending at a transverse angle relative to a longitudinal cartridge axis
A surgical stapler including an anvil, a staple cartridge, and a buttress material removably retained to the anvil and/or staple cartridge. In various embodiments, the staple cartridge can include at least one staple removably stored therein which can, when deployed, or fired, therefrom, contact the buttress material and remove the buttress material from the anvil and/or staple cartridge. In at least one embodiment, the anvil can include at least one lip and/or groove configured to removably retain the buttress material to the anvil until deformable members extending from the surgical staple are bent by the anvil and are directed toward and contact the buttress material.