Abstract: Route planning for road vehicles is performed taking into account a ride quality that results from the roadway conditions along road segments on a route. A plurality of vehicles equipped with controlled suspensions calculate ride quality indices as the vehicles move over a plurality of road segments. The plurality of vehicles transmit the ride quality indices tagged with respective geographic coordinates to an aggregating server. The aggregating server determines a composite ride quality index for each road segment. A subscriber generates a route planning request identifying an origin and a destination. At least one potential route is identified between the origin and the destination comprised of selected road segments. A route ride quality index is determined in response to the selected road segments, and the potential route and the route ride quality index are presented to the subscriber for selection.

Abstract: Route planning for road vehicles is performed taking into account a ride quality that results from the roadway conditions along road segments on a route. A plurality of vehicles equipped with controlled suspensions calculate ride quality indices as the vehicles move over a plurality of road segments. The plurality of vehicles transmit the ride quality indices tagged with respective geographic coordinates to an aggregating server. The aggregating server determines a composite ride quality index for each road segment. A subscriber generates a route planning request identifying an origin and a destination. At least one potential route is identified between the origin and the destination comprised of selected road segments. A route ride quality index is determined in response to the selected road segments, and the potential route and the route ride quality index are presented to the subscriber for selection.

Abstract: The time needed to verify proper operation of a fault detection system or to verify the impact of the replacement of a component in the system being monitored is reduced without substantial increase in the possibility of false indication of failure or false indication of proper operation by employing a geometric moving average with a variable time constant reset to a minimum value upon initialization and gradually increasing to a maximum value. Motor vehicle systems and components are monitored and a diagnostic indicator annunciates faults to alert the vehicle operator to malfunctions.

Abstract: Incorrect classifications of misfires (potential false alarms) are reduced by comparing the power loss value for a particular cylinder event with the power loss values for neighboring cylinder events. A set of rules for the comparisons permits identifications of potential misfires that are, in reality, a normally firing cylinder event having a measurement that is altered by a neighboring misfire event, referred to as the pulling effect. The invention improves misfire detection accuracy, especially in internal combustion engines with 8 or more cylinders, which have substantially overlapping power strokes.

Abstract: System and method for filtering a misfire data stream having numerical values that indicate whether a firing of a cylinder was a misfire or a proper firing, to yield an optimum measurement misfire-rate for accurate and rapid determination of whether an engine is misfiring beyond a threshold level.