On cars without EBD, then the driver presses the brake pedel, the force is evenly distributed to the four brakes. On cars with EBD, the brake force is proportioned to each wheel based on driving conditions and available traction. In an emergency straight-line braking situation, EBD would provide more brake pressure to the front to avoid the rear brakes from locking. If the driver brakes while steering a corner, it would control the brake forces between the left and right wheels to help maintain stability.