ABD It is a mechanism for a driver to drive easily with reducing burden of operation. It enhances driving stability when changing lane suddenly or cornering and also secures acceleration on the slippery road surface such as snowy or icy roads. [Principle for operation] Speed of wheels, perceived by sensor attached to wheel disc, is transmitted to ECU(Electronic Controlled Unit), and with that ECU, comparing this information to the speed of vehicle, determines wheel spin and controls brake. This mechanism helps a driver to drive easily.   Electronically Controlled 4-Channel 4 Sensor ABS When sudden braking or braking on the frozen road or watery road, it prevents slip by locking wheels. And it secures stability of steering and directing.     Braking at Straight Driving When going straight, if one wheel is on slippery road and the coefficient of friction is different, it controls wheels differently to make the car go straight without slip.   Braking at Turning On the slippery road, if you brake at turning, the car will be slipped. You can turn safely without locking wheel situation.   Braking at Obstacles When you drive at high speed, if you brake in front of obstacles, the steering wheel will be locked. Automobile with ABS can avoid this situation, so that it is possible to avoid obstacles.   LSD(Limited Slip Differentail) It prevents any useless rotation of wheels by retaining transfer of torque when driving the snowy, icy or slippery road or when mired in a muddy area or ditch, and it also transfer the maximum driving capacity by increasing of driving capacity of an opposite wheel.