MCUMETHOD FOR REDUCING ERRORS OF SOLENOID CONTROL AND MCU FOR REDUCING ERRORS OF SOLENOID CONTROL

摘要

A method for reducing errors of a solenoid control according to one embodiment of the present invention includes the steps of: receiving, by an MCU, a current value (A1) in a first time, and calculating a representative resistance value (Radap) of a coil of the solenoid by using the current value together with a target voltage value (V0) in a first-T time (where T is a control period of the solenoid); calculating an estimated resistance value (R1) of the solenoid coil at the first time by using the calculated representative resistance value by the MCU; calculating a target voltage value (V1) at the first time by using the estimated resistance value at the first time and a target current value (I1) at the first time calculated by the MCU; calculating a correction value (Duty) for error reduction by the MCU, by using the calculated target voltage value at the first time and a present battery voltage value (Vbatt); and applying the calculated correction value for error reduction by the MCU. Accordingly, control errors of the solenoid control according to the temperature are reduced.