DUAL APPARATUS FOR CONTROLLER

摘要

The present invention relates to a dual system of a controller to check an error of the controller and to operate the controller in a normal state by analyzing a control signal received from two dual controllers operated in an active state. The dual system according to the present invention comprises: a plurality of low modules to perform each predetermined function; and first and second controllers to control each of the low modules. The first and second controllers transmit the control signal to the low modules. The low modules delete the control signal in which the error is generated and to perform a function according to a normal control signal by determining the error generation of the received two control signals.