Abstract: A control system for estimating the approximate relative position of an electric linear actuator on a surface maintenance machine. The control system includes device for selectively coupling the electric motor of the linear actuator to the electric power source, device for measuring or estimating the current and voltage of the electric motor, device for estimating the motor speed based on the measured values of current and voltage, and storage device for storing values of estimated motor speed and integrating device for determining approximate linear actuator position, wherein the integrating device integrates the motor speed over time to determine the approximate position of the linear actuator position.

Abstract: A data collection and management method is disclosed for use in association with a surface maintenance machine wherein a control system controls selected machine operations in response to manually inputted operation settings selected by an operator and occurring at selected times. In broad terms, an embodiment of the present invention includes steps of receiving and storing operational and time information associated with machine operation, conveying information to an information processor, and processing the information so as to provide a report or record of time quantified machine information. In a particular application, reports or records can be utilized to provide feedback to a machine operator to improve the cleaning process, such as by minimizing the usage of wear parts, solutions, and or energy.

Abstract: A data collection and management method is disclosed for use in association with a surface maintenance machine wherein a control system controls selected machine operations in response to manually inputted operation settings selected by an operator and occurring at selected times. In broad terms, an embodiment of the present invention includes steps of receiving and storing operational and time information associated with machine operation, conveying information to an information processor, and processing the information so as to provide a report or record of time quantified machine information. In a particular application, reports or records can be utilized to provide feedback to a machine operator to improve the cleaning process, such as by minimizing the usage of wear parts, solutions, and or energy.