Patent ID: 7010422

Claim:
A method for limp home control, comprising: determining whether a battery voltage (V_EL) provided to an Engine Control Unit (ECU) via a main relay is less than or equal to a first standard value; correcting one or more vehicle control factors according to the battery voltage (V_EL) if the battery voltage (V_EL) provided to the ECU via the main relay is greater than the first standard value; determining whether a battery voltage (V IGK) provided to the ECU via an ignition key is less than or equal to a second standard value if the battery voltage (V_EL) provided to said ECU via the main relay is less than or equal to the first standard value; determining that a line providing the battery voltage (V_EL) from the rear end of the main relay to the ECU is disconnected if the battery voltage (V_IGK) provided to the ECU via the ignition key is larger than the second standard value; and correcting one or more vehicle control factors according to the battery voltage (V_IGK) provided to the ECU via the ignition key if said line providing the battery voltage (V_EL) is determined to be disconnected.