Overheat protection

The EPS provides a monitoring function to protect against excess temperature. The temperature of the following components is monitored:

• Control electronics
• Power electronics
• Motor winding

If one or several measuring points reach the temperature threshold value, the EPS reduces the steering servo assist (linear) from the threshold value (1 %) to the limit value (100 %). If in doing so the steering servo assist drops below the value of 40 %, a Check Control symbol lights up in the instrument cluster. The Check Control symbol goes out if the steering servo assist returns to the nominal value of 100 %.