Patent ID: 6836219
Filing Date: 2004-12-28
Classification: G05B

Abstract:
A method for synchronizing at least a first control device and a second control device, which comprises:providing a communication link between the first control device and the second control device; providing a sensor device having a measuring sensor for generating a measuring signal and a device selected from the group consisting of an incremental angle encoder and a position encoder; assigning a synchronization device to the first control device and to the second control device, and configuring the synchronization device for generating a synchronization signal; generating a conditioned first measuring signal in the first control device as a function of the measuring signal; generating a conditioned second measuring signal in the second control device as a function of the measuring signal; in the first control device, receiving the synchronization signal at an instant of time and obtaining a value of the conditioned first measuring signal at a predefined time after the instant of time that the synchronization signal was received by the first control device; in the second control device, receiving the synchronization signal at an instant of time and obtaining a value of the conditioned second measuring signal at a predefined time after the instant of time that the synchronization signal was received in the second control device; transmitting the value of the conditioned first measuring signal obtained at the predefined time after the instant of time that the synchronization signal was received by the first control device, from the first control device to the second control device; with the second control device, synchronizing the conditioned second measuring signal dependent upon a difference value; and obtaining the difference value by taking a difference between the value of the conditioned first measuring signal obtained at the predefined time after the instant of time that the synchronization signal was received by the first control device and the value of the conditioned second measuring signal obtained at the predefined time after the instant of time that the synchronization signal was received by the second control device.