Abstract: The object detection system includes an object sensor and a controller. The controller is configured to compare a sensed range of an object with a range gate based on the azimuth angle of the object. The range gate for each azimuth angle is programmable and is selected to form a contiguous sensing region closely matching the shape of a desired detection zone. The object sensor is switchable between the plurality of sensing fields, wherein a range gate for each sensing field is programmable to form a contiguous sensing region. The object sensor may be a variety of range sensors including radar, ultrasonic, laser or infrared technologies. The range gate and parameters of the sensing field are each programmable through a controller. Further, the controller may automatically vary the range gate or sensing field based on vehicle parameters.

Abstract: Engine lubricating oil temperature and the amount of engine usage are used to calculate when engine lubricating oil has reached the end of its predicted wear life. Each spark (engine speed) pulse is multiplied by weighting factors that are periodically determined by sampling the engine oil temperature and the length of time the engine has been in continuous use above a predetermined speed. When the value of the accumulated weighted spark pulses has reached a predetermined level, a warning signal is provided to indicate the necessity of changing the engine lubricating oil.