Electric power steering control apparatus and method

An electric power steering control method comprising:

• performing a first current torque estimation signal output operation in which first current torque estimation information is sensed and output;
• performing a first determination operation in which it is determined whether or not the first current torque estimation information is in a first state of being out of a first reference torque estimation information range;
• performing a second current torque estimation signal output operation in which second current torque estimation information is sensed and output if the first current torque estimation information is determined to be in the first state;
• performing a second determination operation in which it is determined whether or not second current torque estimation information is in a second state of being out of a second reference torque estimation information range;
• and
• performing a drive operation in which an EPS device is driven if the first current torque estimation information is not determined to be in the first state or the second current torque estimation information is not determined to be in the second state, or the EPS device is shut off if the first current torque estimation information is determined to be in the first state or the second current torque estimation information is determined to be in the second state.