Lateral rollover risk warning device

A lateral rollover risk warning device that is installed in a vehicle that is supported by spring structures of respective sides in the right-left direction across a vehicle axis of a vehicle body, reporting a risk of said vehicle being rolled over, said lateral rollover risk warning device comprising:

• a vertical direction physical amount detection means for detecting an external force applied in the vertical direction of said vehicle body,
• a rotational direction physical amount detection means for detecting a rotation around said vehicle axis of said vehicle body,
• a limit index calculating means that uses the results of detection by said vertical direction physical amount detection means and said rotational direction physical amount detection means to calculate a limit index,
• wherein the limit index is an index of a limit at which said vehicle is led to be rolled over,
• a right-left direction physical amount detection means for detecting an external force applied in the right-left direction of said vehicle body,
• a real-time index calculating means that uses the result of detection by said right-left direction physical amount detection means to calculate a comparative index to be compared with said limit index in real time;
• and
• a reporting means that uses said limit index and said comparative index to report a piece of lateral rollover risk warning information telling the risk of rolling over.