NOISE ERASING METHOD OF CLUSTER RKE FOR VEHICLES

摘要

An apparatus of removing RKE noise of a cluster in a vehicle is provided to reduce noise of a DC/DC converter in an operation of the RKE(Remote Keyless Entry) by additionally installing a switching circuit such that the DC/DC converter is disabled in a battery-power state and the DC/DC converter is enabled after an ignition-on state. An apparatus of removing RKE noise of a cluster in a vehicle comprises the step of initializing an LCD by waking-up a microcomputer if a CAN signal is transmitted from the vehicle to the cluster in a start of an RKE operation during a battery-power state(S602,S604,S606). A DC/DC converter which controls voltage for controlling a contrast of the LCD, is disabled by the micom in the battery-power state. When the battery-power state is changed into an ignition-on state, the micom supplies the DC/DC converter and the LCD with power through a regulator, such that the DC/DC converter is enabled(S612,S614). Data transmitted from the micom is displayed on the LCD in the form of a graphic or a character(S616).