BARRY EDWARD PLASSMAN
Engineers in Cedar Falls, IA
License number
Pennsylvania PE054992E
Category
Engineers
Type
Professional Engineer
Address
Address
2
Cedar Falls, IA 50613
Pennsylvania
Pennsylvania
Professional information
Transmission Shift Control With Engine Torque Control
US Patent:
2004001, Jan 22, 2004
Filed:
Jul 19, 2002
Appl. No.:
10/199939
Inventors:
Clayton Janasek - Independence KS, US
Jared Dobbins - Pryor OK, US
Timothy Rice - Independence KS, US
Michael Testerman - Dearing KS, US
Michael Pipho - Dunkerton IA, US
Barry Plassman - Cedar Falls IA, US
Jared Dobbins - Pryor OK, US
Timothy Rice - Independence KS, US
Michael Testerman - Dearing KS, US
Michael Pipho - Dunkerton IA, US
Barry Plassman - Cedar Falls IA, US
Assignee:
Deere & Company, a Delaware Corporation
International Classification:
B60K041/06
US Classification:
477/109000
Abstract:
A transmission controller determines a requested engine torque value. For an upshift the requested engine torque value is determined as a function of slippage of one of an off-going clutch. For a downshift, the requested engine torque value is determined as a function of actual sensed engine torque. The requested torque value is sent to an engine controller which controls the engine so that the engine generates the requested engine torque. Then the appropriate transmission clutches are swapped to complete the requested shift while the engine torque is controlled. The engine controller also limits engine torque to the requested engine torque value.
Electronic Fan Control
US Patent:
2003004, Mar 6, 2003
Filed:
Aug 14, 2002
Appl. No.:
10/218871
Inventors:
David Laird - Waterloo IA, US
James Ross - Cedar Falls IA, US
Barry Plassman - Cedar Falls IA, US
Gary Treichel - Cedar Falls IA, US
Douglas Fischer - Parkersburg IA, US
James Miller - Cedar Falls IA, US
Michael Pipho - Dunkerton IA, US
James Ross - Cedar Falls IA, US
Barry Plassman - Cedar Falls IA, US
Gary Treichel - Cedar Falls IA, US
Douglas Fischer - Parkersburg IA, US
James Miller - Cedar Falls IA, US
Michael Pipho - Dunkerton IA, US
International Classification:
F01P007/02
US Classification:
123/041120
Abstract:
Method and apparatus for controlling a cooling fan in a vehicle engine compartment, such as a tractor or combine. A fan control receives inputs from sensors and uses the sensor inputs in determining fan speeds which meet cooling needs while limiting fan energy consumption. Sensor data include at least one of PTO and transmission settings, throttle command and engine speed, and fan speed and air conditioner settings. Sensor data is received and processed in the fan control, which sends the greatest determined fan speed to a fan actuator. When the PTO is activated and the transmission is in park, fan speed can be controlled according to an alternate coolant temperature table. When throttle command is zero and engine speed is above a maximum, fan speed is set at maximum. When air conditioning is activated, fan speed is set at least at a predetermined minimum speed.