Barngrover
Michael Barngrover, Peoria, IL US
Patent application number | Description | Published |
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20090156360 | PART-THROTTLE PERFORMANCE OPTIMIZATION - A system and method for optimizing machine performance using speed shaping in a machine having an engine and a drivetrain implementing engine underspeed module receives a throttle command requesting an increase in engine speed and transmits the throttle command to the engine. If the requested increase exceeds a predetermined function, the predetermined function is forwarded to the engine underspeed module as a speed standard. The engine underspeed module determines whether the actual engine speed attained by the engine is less than the speed standard by more than a predetermined gap value and, if so, reduces the power required by the drivetrain to avoid lugging of the engine. | 06-18-2009 |
20090199814 | POWER-BASED UNDERSPEED CONTROL - A method of adjusting the operation of an engine-driven machine to avoid engine under-speeding entails converting a received speed or torque command into a power command. When an engine under-speed condition is sensed, the system performs underspeed correction in the power domain before converting the underspeed processed power command back into the units of the original domain. The converted underspeed processed power command is issued to the transmission or other component to alleviate the engine under-speeding condition. | 08-13-2009 |
Michael Barngrover, Brimfield, IL US
Patent application number | Description | Published |
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20130325271 | System and Method for Machine Load Detection - A transmission includes a transmission output speed (TOS) sensor providing a signal indicative of an output speed of the transmission. A controller estimates an actual torque output of the transmission and determines, in real time, a first TOS acceleration based on the signal provided by the transmission output speed sensor and a second TOS acceleration based on the actual torque estimation. The first and second accelerations are compared and a torque transient trigger is activated when the divergence exceeds a threshold value. | 12-05-2013 |
20140095035 | System and Method for Avoiding Engine Underspeed and Stall - System and method for controlling a transmission in response to transient torque events are disclosed. The method includes commanding a maximum transmission output torque; comparing the commanded output torque to a feedback torque to determine if they are equal; and incrementally increasing the transmission output torque until equal. A machine and a powertrain include a controller configured to command a maximum negative transmission output torque in response to a transient torque event, and incrementally increase the transmission output torque until such time as the transmission output torque is equal to or within a preset range of the feedback torque. | 04-03-2014 |
Michael J. Barngrover, Peoria, IL US
Patent application number | Description | Published |
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20080269011 | System for controlling a machine with a continuously variable transmission - A system for controlling a machine with a continuously variable transmission includes a first control device configured to produce a first signal based on a first operator input and a second control device configured to produce a second signal based on a second operator input. The system also includes a control system configured to receive the first and second signals from the first and second control devices and generate a raw torque value based on the first and second signals. The control system is also configured to determine an output torque value based on the raw torque value and transmit the output torque value to the transmission to control the transmission. | 10-30-2008 |
20090298635 | Electric motor actuation of a hydrostatic pump - A hydraulic motor system for improved frequency response includes a hydraulic variator having a pump and a motor, wherein the pump includes a variable angle swash plate, and the system further includes an electric actuator for controlling an angle or torque of the swash plate, thereby controlling the motor output characteristics. The electric actuator for controlling the variable angle swash plate may comprise a linear electric motor, ball screw drive or a rotary electric motor. In an example, the rotary electric motor tilts the swash plate by applying a torque to the swash plate at a point away from its tilt axis. In a further example, the rotary electric motor tilts the swash plate via a worm drive or ball screw drive. | 12-03-2009 |
20100137102 | Retarding control for a machine - The present disclosure is directed toward a method for dissipating power through a machine. The method may include directing power into a power system of the machine. The method may further include controlling a parasitic load of the power system to increase dissipation of the power system, the controlling of the parasitic load being a function of a power dissipation limit of the power system. | 06-03-2010 |
20100283262 | Energy Recovery And Cooling System For A Hybrid Machine - An apparatus for a hybrid machine is disclosed. The apparatus includes a fluid pump operably connected to a condenser and a fluid path operably connected to the fluid pump. The fluid receives thermal energy from a first machine component and a second machine component. The first machine component has a static operating temperature equal to or lower than the second machine component. | 11-11-2010 |
20120158264 | Clutch calibration for continuously variable transmission - A calibration system for calibrating a transmission provides a calibrated clutch fill time for an oncoming clutch by activating a parking brake of a machine associated with the transmission and calibrating each clutch by setting a transmission characteristic parameter to an initial value, and then activating a clutch solenoid associated with the clutch. The transmission characteristic is periodically measured, and when the measured value of the transmission characteristic exceeds the initial value for a predetermined number of consecutive periods, the fill time for the clutch is set equal to the time elapsed during the total number of measurement periods minus one less than the predetermined number of consecutive periods. | 06-21-2012 |
Michael J. Barngrover, Brimfield, IL US
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20150183427 | Primary Steering Enabler During Engine Failure - A system and method are provided for maintaining hydraulic steering for a machine during engine out or engine lugging conditions. The machine includes a torque-controlled transmission driven by an engine, the engine further being linked to a hydraulic steering pump that provides hydraulic power to a steering actuator. The machine may be, for example, a wheel loader or an off highway truck. The system and method include detecting an undesirable reduction of engine speed while the machine is travelling, and responsively reducing the transmission power to maintain the engine speed at a desired level to power the hydraulic steering pump. When the reduced requested transmission power reaches zero, a power reversal through the transmission is commanded to maintain the engine speed at the desired level to power the hydraulic steering pump. | 07-02-2015 |
Michael John Barngrover, Peoria, IL US
Patent application number | Description | Published |
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20090186741 | Hybrid engine system with transient load assistance - A power train is provided having a power source for generating a power output. The power train also has a power storage device for storing and distributing power. The power train further has a controller configured to cause the distribution of power from the power storage device for assisting the power source when the rate of fuel entering the power source is above a threshold fuel rate. The threshold fuel rate is a fuel rate at which, assisting the power source increases the efficiency of the power train. | 07-23-2009 |
Mike Barngrover, Brimfield, IL US
Patent application number | Description | Published |
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20130325270 | System and method for controlling shift hunting in variable transmissions - A method of controlling a transmission ( | 12-05-2013 |