Medical School Wayne State University School Of Medicine Medical School Providence Hospital Med Ctrs Medical School University Of Mi Hosps and Health Ctrs Medical School Wm Beaumont Hospital
Richard Reynolds Hathaway - Canton MI Kenneth Paul Wozniak - Chelsea MI
Assignee:
Ford Global Technologies, Inc. - Dearborn MI
International Classification:
G01M 1500
US Classification:
701 62
Abstract:
A method and system for testing the functionality of a solenoid used to change the apply state of a torque converter clutch in a vehicle having an electronic control unit and a driveline system including an engine, a transmission, a torque converter. A first torque converter speed ratio is established. The commanded apply state of the torque converter clutch is determined, then a second torque converter speed ratio is calculated using engine speed and output shaft speed. The functionality of the torque converter clutch solenoid is established by determining whether the torque converter clutch solenoid has changed the applied state of the torque converter clutch by performing a comparison of the first and second torque converter speed ratios.
Apparatus And Method For Determining A Failure Of An Automatic Transmission Fluid Temperature Sensor
Richard Reynolds Hathaway - Canton MI Earl Roslin Hoffman - Livonia MI Bruce John Palansky - Livonia MI Philip Joseph Wiethe - Redford MI Kenneth Paul Wozniak - Chelsea MI
Assignee:
Ford Global Technologies, Inc. - Dearborn MI
International Classification:
G01M 1900 G06F 1900
US Classification:
701 34
Abstract:
A method and apparatus are provided to determine a failure of an automatic transmission temperature sensor in an automobile. The apparatus detects a start-up of the vehicle. A sensor detects the transmission fluid temperature. The transmission fluid temperature at start-up is checked to see if the temperature is below a first predetermined temperature or above a second predetermined temperature. If the sensor does not detect a predetermined change in temperature during operation of the vehicle after it is determined the transmission fluid temperature at start-up is above the first predetermined or below the second predetermined temperature, the sensor has failed.
Kenneth Wozniak 1963 graduate of Catholic Central High School in Grand rapids, MI is on Classmates.com. See pictures, plan your class reunion and get caught up with Kenneth and ...