To detect harsh or risky driving behavior, Mentor directly leverages readings from built-in accelerometer in combination with derived acceleration values defined as rate of velocity change. Mentor’s “Harsh Cornering” thresholds are based on industry best practice and eDriving’s own field testing. These are subject to change in light of experience, industry standards and in-house research.
The “Harsh Cornering” threshold is set at 0.5 g. The larger the turning radius, the higher the speed tolerance. For example: A driver making a turn at >20 mph at a two-lane intersection with a 55 foot/17 meter turning radius would cause a “Harsh Cornering” event to be recorded. At a three-lane intersection with an 82 foot/25 meter turning radius, “Harsh Cornering” would be triggered at a turning speed of >25 mph.