Dana Corporation

Craig W Bladow

Steven P Thomas

A network of electronic controllers adapted for controlling operation of a plurality of output devices. Each of the controllers is programmed with an algorithm which causes the controller to analyze its external connections to identify its assigned tasks and functions, thereby allowing the controller to automatically configure itself for use. Each of the controllers is programmed with instructions for performing the assigned tasks and functions of all of the controllers.

Electronic controller having automatic self-configuration capabilities

A control system and method for operating the solenoid valves for controlling the supply of hydraulic fluid to a hydraulic actuator is described. The system and the method involves initially applying a first, increasing linear pressure up to a predetermined magnitude and then holding the pressure at that level for a period of time. This predetermined magnitude is equal to the amount of pressure required to cause initial movement of the piston. By holding the pressure level at a plateau for a period of time, the initial movement of the piston is accomplished in a smooth manner. This period of time is relatively short, typically less than one second. Thereafter, the system and the method involve operating the solenoid valves so as to apply a second, increasing linear pressure up to a predetermined final magnitude.

Plateau control algorithm for an electro-hydraulic actuator

An electronic controller is operated according to a method which efficiently generates output signals to a relatively large number of output devices, yet which utilizes only a relatively small amount of programming code to accomplish this. The electronic controller is responsive to various input signals for generating output signals on a bus line to a plurality of latches, each of which contains a plurality of output lines which are connected to operate the output devices. The electronic controller initially inputs the number of output lines per latch contained in the electronic control system as a variable B. Then, the number of a selected output device (designated as a variable A) is divided by the number of output lines per latch B. The result of this division is expressed in the form of an integer C plus a remainder D. The integer C designates the latch which controls the operation of the selected output device, while the remainder D designates the specific selected output device within that latch. Thus, the electronic controller generates the appropriate output signal on the bus line to the latches.

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Perrysburg, OH, United States of America

Craig W Bladow