A rollover prevention device and method detects an impending rollover situation
for a vehicle (10) having a high center of gravity (cg). The system alerts
the operator to potentially dangerous driving conditions and/or automatically slows
the velocity of the vehicle (10) to prevent rollover. An electronic control
unit for receives output signals from wheel velocity, engine revolution, and engine
load sensors and then calculates lateral acceleration, wheel slip difference, and
drive torque from the signals. A lateral acceleration limit is defined by plotting
lateral acceleration, wheel slip difference and drive torque as a three dimensional surface.