ECU

ECU

The ECU in the NSK EPAS system pilots the motor fitted on the steering column. The main purpose of the ECU is to control steering wheel torque, i.e. the current to the motor. Other important functions include:

• speed factor, which reduces the gain according to vehicle speed;
• steering sensitivity, which reduces histerisis at the centre of the steering wheel;
• active return at low speeds;
• rocking prevention at medium and high speeds.