The Atlanta Journal-Constitution
Fusion offers a taste of semi-autonomous functions
Ford’s newest offering brings auto-driving features to mainstream.
It could be years, maybe even decades, before you regularly catch rides in a completely selfdriving car.
But semi-autonomous features, which can take over for a driver in more limited ways and have been available for years in some luxury cars, are making their way into mainstream vehicles.
I recently got a taste of what’s available in mainstream cars when I test drove a 2017 Ford Fusion Energi, the plug-in model of the company’s midline sedan, which is $40,000, fully loaded.
All of the self-driving technologies that Ford makes available on its Ford or Lincoln models — which include automatic braking, advanced adaptive cruise control, assisted parking and automated lane keeping — are available as options on the Fusion Energi and come standard on the topof-the-line model.
In testing the various semiautonomous features on the Fusion, I was struck by how much they varied in terms of usability, polish and reliability.
The most impressive function by far was its advanced adaptive cruise control, a new feature with this year’s model. Adaptive cruise control will try to maintain a set speed, but will automatically slow down if the cars in front of you decelerate and will accelerate back when they speed up.
The Fusion’s system takes this technology a step further, because unlike those on other cars, it will continue to work in stop-and-go traffic. Using radar and a camera system placed behind the rearview mirror to detect vehicles in front of it, it will bring you to a complete stop in a traffic jam and then re-accelerate as traffic resumes.
It worked great. I hate being stuck in traffic. There were a few times I got nervous, because I could tell that cars that were several vehicles ahead of me were starting to brake and the Fusion didn’t realize yet that it needed to slow down. But it kept a good following distance and always decelerated in plenty of time.
Somewhat less impressive was the Fusion’s parking system. That function will take control of the steering wheel and, using ultrasonic sensors to detect nearby vehicles, will guide the car into a parallel or perpendicular spot, telling you when to press the accelerator or brake.
But it’s slow. In my tests, the Fusion sometimes required a fiveor even a seven-point turn to back into a perpendicular spot. It was faster with parallel ones. You’re likely to do both much quicker on your own.
Even less impressive was the Fusion’s lane-keeping system, which is also new to the car. The same camera used in the adaptive cruise control system is supposed to keep track of lane lines as you are driving. If you start to drift out of your lane, the system can be set to slightly turn the steering wheel to get you back on track.
But in my tests, the lane-keeping system rarely worked. I would intentionally let the car drift — making sure there were no cars around me first, of course — but instead of steering me straight, it usually just let me glide on into the next lane. I had little confidence that the system would keep me out of an accident.
The car’s automatic braking feature also gave me pause. Relying on the same radar-and-camera system used for adaptive cruise control, the braking system is designed to warn you — by lighting up a bar of red LED lights on the dashboard — if it thinks you are in danger of a collision and to automatically try to stop the car if you don’t quickly apply the brakes or steer out of danger.
That feature was hard to test, for obvious reasons — I didn’t want to take a chance of plowing into something. But on a couple of occasions, the feature’s warning Plug-in hybrid sedan 21 miles on battery pack; 610 miles total 97 miles per gallon (combined electric and gas); 42 miles per gallon (gas alone)
Apple CarPlay and Android Auto support; Sync 3 infotainment system; automatic braking; advanced adaptive cruise control; assisted parking; automated lane-keeping
Base model, $31,120. As tested: $39,120. Doesn’t include delivery charges, taxes, license and other fees. light went off in a way that both surprised and worried me.
In one particular case, the automatic braking system seemed to fear I was going to collide with a car that was stopped in the lefthand lane while waiting to turn. My car, in the right-hand lane, was indeed headed straight for it, but my lane curved out of the way as it approached the car. The braking system didn’t attempt to stop my car, but the warning worried me; there were cars behind me and if the system had automatically applied the brakes, it could have caused more danger than it prevented.
That was unlikely to happen, said Scott Lindstrom, Ford’s driver assist technology manager. The automatic braking system only gets triggered when a collision appears imminent; in its most sensitive setting, it can give a warning a second or more before the brakes get applied. That’s likely what happened in my case, he said.