Of the nine vehicles, the XV sport utility vehicle (SUV) mounting the EyeSight system, and the V40 compact hatchback with the City Safety system, both managed to stop without collision at a speed of about 40 km/h for the vehicle target (Fig. 1), and at about 30 km/h for the pedestrian target. The total score for autonomous braking for both vehicles was five or more, putting them both in the AAA rank.

Fig. 1  XV testing
Fig. 1 XV testing
Test vehicle was driven at about 30 km/h toward the pedestrian target. Autonomous braking activated, and the vehicle stopped about 1 m short.

The EyeSight system in particular avoided collision at about 50 km/h for the vehicle (four points) , and about 40 km/h (three points) for the pedestrian, for a total of seven points. The Volvo City Safety system, also ranked AAA, was scored three for the vehicle and two for the pedestrian, for a total of five, well behind the front-runner and establishing the EyeSight autonomous braking system as the clear winner in the competition.

Two earned the AA rank, with at least three points: the Emergency Brake system from Nissan Motor Co., Ltd. of Japan in the X TRAIL, and the Driving Assist system from Bayerische Motoren Werke AG (BMW) of Germany, in the firm’s M5. Both systems are simple designs using only a single-lens camera to detect obstacles, and gained three points by avoiding collision with the vehicle target at about 30 km/h, and the pedestrian at about 20 km/h. These results illustrate the recognition performance of the single-lens camera clearly.

The autonomous brake functions from five manufacturers were ranked A, with less than three points. Toyota Motor Corp. of Japan was the only one to receive two points, for its Pre-Crash Safety System (millimeter-wave), using a Crown Athlete test vehicle. It avoided collision with the vehicle target at about 30 km/h, but since it was unable to avoid the pedestrian target did not receive AA rank.

The remaining four systems were unable to avoid the pedestrian target, but received one point each for avoiding the vehicle target at about 20 km/h or less. They were the Radar Brake Support from Suzuki Motor Corp. of Japan (Wagon R test vehicle), the Smart Assist from Daihatsu Motor Co., Ltd. of Japan (Tanto test vehicle), the City Brake Active System from Honda Motor Co., Ltd. of Japan (FIT Hybrid text vehicle), and the City Emergency Brake/Front Assist Plus from Volkswagen AG (VW) of Germany.