Abstract: A method for monitoring an on-vehicle battery charger includes estimating a charging efficiency of the battery charger. Upon achieving an indeterminate result related to the estimated charging efficiency of the battery charger, a commanded input power to the battery charger and an electric power at the on-vehicle battery during operation of the battery charger are determined. Flow of electric current through the battery charger is interrupted, and electric power flow from the on-vehicle battery is determined. An active charging efficiency of the battery charger is determined based upon the commanded input power to the battery charger, the electric power at the on-vehicle battery during operation of the battery charger and the monitored electric power flow from the on-vehicle battery when the flow of electric current through the battery charger is interrupted. Charging performance of the battery charger is evaluated based upon the active charging efficiency.

Abstract: A method for monitoring an on-vehicle battery charger includes estimating a charging efficiency of the battery charger. Upon achieving an indeterminate result related to the estimated charging efficiency of the battery charger, a commanded input power to the battery charger and an electric power at the on-vehicle battery during operation of the battery charger are determined. Flow of electric current through the battery charger is interrupted, and electric power flow from the on-vehicle battery is determined. An active charging efficiency of the battery charger is determined based upon the commanded input power to the battery charger, the electric power at the on-vehicle battery during operation of the battery charger and the monitored electric power flow from the on-vehicle battery when the flow of electric current through the battery charger is interrupted. Charging performance of the battery charger is evaluated based upon the active charging efficiency.

Abstract: An engine torque management system of a V-style engine utilizes a cylinder head metal temperature sensor in each cylinder head to detect a temperature. When the sensor temperature rises above a threshold value for a particular time period, the response software shuts down the fuel injection of a bank of cylinders in which the sensor is installed. Cool, uncombusted intake air cools that bank and an external fan blows air over that bank. If the sensor in the second bank of cylinders rises above the threshold, the fuel injection on that bank shuts off to undergo cooling while the fuel injection on the first bank restarts. Alternation between the two banks occurs to maintain the desired level of torque demanded by the vehicle driver.

Abstract: An engine torque management system of a V-style engine utilizes a cylinder head metal temperature sensor in each cylinder head to detect a temperature. When the sensor temperature rises above a threshold value for a particular time period, the response software shuts down the fuel injection of a bank of cylinders in which the sensor is installed. Cool, uncombusted intake air cools that bank and an external fan blows air over that bank. If the sensor in the second bank of cylinders rises above the threshold, the fuel injection on that bank shuts off to undergo cooling while the fuel injection on the first bank restarts. Alternation between the two banks occurs to maintain the desired level of torque demanded by the vehicle driver.