Rollover Detection - Auto Test AUTOmonitor Manual

AutoMonitor User Manual Version 7.22

3.3 Rollover Detection

The AutoMonitor's rollover sensor constantly monitors vehicle's orientation and motion and can
sense the likelihood of vehicle rollover. The factors that aid in rolling over of a vehicle are its tilt
angle across its roll axis of rotation and the lateral force exerted by the acceleration of the vehicle
around curves and corners. The rollover parameters are calculated based on the dimensions of a
vehicle. A vehicle, whose centre of gravity (c.g.) height is low, will require more lateral acceleration
to make it roll over, whereas a vehicle with higher centre of gravity (c.g.) height can easily roll over
in the event of lower lateral force.
The lateral force can be exerted on a vehicle when the vehicle travels around a bend. The higher
the speed of the vehicle around a bend, the greater the lateral force will be. AutoMonitor
constantly monitors the changes in lateral force and compares it to the maximum force the vehicle
can sustain before becoming unstable. When the AutoMonitor predicts the rollover tendency of the
vehicle is approaching the critical value, a warning sound will be produced and the warning lights
on the driver's aid module will illuminate. When the driver experiences the rollover alarm, the
driver should immediately slow down the vehicle until the rollover warning is gone and the vehicle
becomes safe.
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