Abstract: A control method for operating an automated manual transmission system having a fuel-controlled engine, a multiple-speed change-gear transmission and a clutch drivingly interposed between the engine and an input shaft of the transmission is provided. The control method determines a rate of throttle change of a throttle pedal. The clutch is engaged at a first clutch engagement rate based on the rate of throttle change being greater than a threshold. The clutch is engaged at a second clutch engagement rate in a blended pedal mode that is proportional to an amount of throttle percentage engagement based on the rate of throttle change being less than the threshold. The first and second clutch engagement rates are distinct.

Abstract: A control method for operating an automated manual transmission system having a fuel-controlled engine, a multiple-speed change-gear transmission and a clutch drivingly interposed between the engine and an input shaft of the transmission is provided. The control method determines a rate of throttle change of a throttle pedal. The clutch is engaged at a first clutch engagement rate based on the rate of throttle change being greater than a threshold. The clutch is engaged at a second clutch engagement rate in a blended pedal mode that is proportional to an amount of throttle percentage engagement based on the rate of throttle change being less than the threshold. The first and second clutch engagement rates are distinct.

Abstract: A trailer angle measurement assembly that measures an angle of a trailer relative to a tractor includes a mounting base, an armature, a roller wheel and a rotary encoder. The mounting base is configured to be selectively coupled to the trailer. The armature is rotatable coupled to the mounting base around a pivot. The roller wheel is rotatably coupled to the armature and is positioned for rotatable engagement with the trailer. The rotary encoder measures rotation of the roller wheel and generates a signal based on the measured rotation indicative of an angular position of the trailer relative to the tractor.

Abstract: A control system and method is provided for controlling engagement of a vehicle master clutch (16) in response to a throttle operating parameter. The method includes the steps of determining a throttle operating parameter value and setting an operating mode of the clutch based on the throttle operating parameter value. The method may include the steps of comparing the throttle operating parameter value to a threshold value and setting the operating mode of the clutch based on the comparison step. The control system includes a microprocessor for receiving signals corresponding to a throttle operating parameter value. The microprocessor sets an operating mode of the clutch based on the throttle operating parameter value or, optionally, the comparison of the throttle operating parameter value to a threshold value.

Abstract: A system and method for regulating temperature of a microprocessor include an oscillator having a frequency which varies based on temperature of the microprocessor wherein the oscillator is connected to the clock input of the microprocessor. The system and method allow operation of the microprocessor at reduced clock frequencies in an attempt to reduce heat generation and stabilize the microprocessor temperature prior to occurrence of a permanent failure due to an operation at excessive temperature.

Abstract: A fault tolerant method of gear selection which initiates a gear selection search in response to a gear upshift or downshift requirement in an attempt to locate a gear that, if used, would result in an engine speed between both upper and lower engine speed limits. The search progresses from the lowest to the highest gear in the case of an upshift requirement and from the highest to the lowest gear in the case of a downshift requirement.