Adaptive cruise control, emergency brake assist and blind-spot monitoring were the stuff of science fiction just a decade ago, but today these features are available on many reasonably priced, mass-market vehicles. Pushing driver assistance even further, Continental is developing a suite of advanced technologies with some pretty amazing capabilities.
Recently the tier-one auto parts supplier invited a small group of media up to its 540-acre test facility in Brimley, Michigan, in the state’s sparsely populated (and frigid) Upper Peninsula. The German company showed off a number of exciting new technologies, some of which are on the market right now, and others that will be coming out in a couple years.
Riding Along in a Self-Driving Car
Without a doubt the most impressive thing on display was the firm’s Highly Automated Driving Car. It may look like a standard-issue Volkswagen Passat, but it’s actually been outfitted with a suite of aerospace-grade technologies. Four short-range radar sensors are mounted around the perimeter of the vehicle, one at each corner. They can detect objects more than 50 feet away. Additionally, there’s a long-range radar sensor at the front of the vehicle as well as a stereoscopic camera mounted at the top of the windshield.
All of these cutting-edge electronics work together, something engineers refer to as “sensor fusion.” The result of all that computerized cooperation is a car that can actually drive itself on the highway. It can steer, stop and accelerate on its own, all while keeping up with traffic and staying safely in its lane. The vehicle has logged more than 16,000 miles of fully-automatic driving, with no crashes or other “incidents” to report. Highly automated driving technology could become commercially available around the year 2020.
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Making this feat even more impressive is that all of the electronics are off the shelf, meaning they’re in production and on the road today. The car performs its duties without any elaborate or expensive one-off sensors. “That was the plan, to see where we are and where we can go,” said Ibro Muharemovic, a member of Continental’s advanced engineering team.
Aside from driving itself on the highway this modified Passat has a few other tricks up its sleeve. Conti representatives demonstrated the car’s ability to cope with heavy road congestion. The company’s Traffic Jam Assist feature can take over driving duties at low speeds, freeing motorists from the tedium of stop-and-go bottlenecks. This system could reach the market by 2016, or even sooner.
With Traffic Jam Assist “[the] driver is actively monitoring the surroundings” Muharemovic said, as the technology is only indented for low-speed use. It’s an “introduction to highly automated driving,” he said. “As time progresses we can increase the speed of the vehicle.”
Beyond these advanced driver-assistance systems, Continental had another safety technology on display. A pedestrian avoidance system is under development as well. Using the same battery of off-the-shelf sensors it can detect people that wander into a vehicle’s path and stop the car before there’s an impact. If it’s not possible to come to a complete halt, the system can at least reduce the severity of the crash.
Blind-Spot Detection with Trailer Towing
Blind spot monitoring systems are really gaining traction. Just a couple years ago they were exclusive to the luxury segment, but now they’re offered on countless vehicles from just about every manufacturer.
The technology is particularly helpful on big vehicles with large blind spots – pickup trucks for instance. But a useful safety feature can be rendered little more than a pricey annoyance if a trailer is added into the equation. Thankfully the folks at Conti have a solution.
Engineers have developed a blind-spot monitor that can actually tell if something is hooked to the back of a truck. Competing systems on the market right now need to be switched off in similar situations because they’ll constantly beep, warning the driver of an obstacle – the trailer.
Continental’s technology can detect how long a trailer in tow actually is and alert the driver when something is in its way. This is perfect when changing lanes on the highway where it’s hard to tell if a trailer has cleared other traffic.
Two radar sensors drive this system; one is mounted in each of the rear tail lamps. “The sensors see everything around,” said Holger Schanz, Senior Manager for Advanced Technology and Innovation. They have a range of about 50 feet and a 180-degree field of view.
“It sounds simple but technically it’s quite a challenge,” said Schanz. A lot of computer processing goes into making the system function, and in demonstrations it worked very well. He said, “We track everything that passes by the sensor,” and sorting moving objects from stationary ones is a “very complicated task.”
Still, the technology is expected to hit the market shortly, probably around 2015. “Customers are very interested in it,” Schanz said, particularly OEMs that sell a lot of trucks.
Electronic Parking Brake
One feature that’s available today is Continental’s Electronic Parking Brake. This technology made its North American debut on the 2013 Ford Fusion.
The big appeal of this system is its drive-away release capability. Practically everyone’s taken off with the parking brake left on at some point in their motoring career; it’s inevitable, especially with a manual transmission. But on the new Fusion this is no longer an issue. The electric parking brake releases itself automatically – just put the car in gear, hit the accelerator and go. There’s no chance of damaging the rear brakes or slowing the vehicle down with unnecessary drag.
Engineers also integrated an emergency function into the system. If the pedal is obstructed with a water bottle or child’s toy for instance and stopping performance is reduced, the parking-brake switch can be pulled up and held, which applies the brakes and stops the car. In testing it worked amazingly well, stopping the car safely and swiftly.
Additionally, there’s a layer of redundancy. If part of the hydraulic system fails the electric parking-brake actuators at the rear wheels can be used for stopping in emergency situations. To prevent a loss-of-control situation they pulse from side to side to keep the car in a straight line. It’s pretty neat, but something that will probably, or rather hopefully, never be needed.
Four-Corner Air Suspension
“Air suspension has been very popular in Europe and now it’s starting to come over here” said Heidi Hahn, a Vehicle Dynamics Engineer. And what’s not to like? It’s height adjustable and delivers a smooth ride with confident handling.
The Ram 1500 has an air bladder and height sensor mounted at each corner. These parts work in conjunction with an electric compressor located at the rear of the truck, an out-of-the-way location that keeps unwanted noise as far from the cabin as possible.
Conti makes all kinds of automotive parts from electronic sensors to powertrain products, from interior bits to braking systems. They’re even a rubber company, perhaps you’ve heard of their tires. With expertise across multiple domains they can do a lot of different things and according to Hahn, “The whole system is our components.”
From its lowest setting to its highest, the suspension can adjust a full four inches, meaning it can drop down for easier entry and exit, not to mention better fuel economy at high speeds; and of course it can raise up for more ground clearance off road.
Some truck owners may question the suspension’s durability, but Hahn said, “The lifespan of an air spring is longer than a steel spring.” Augmenting the longevity benefit, the system is also about 6.5 pounds lighter.
A Glimpse in Continental’s Crystal Ball
From highly automatic driving to advanced blind-spot detection Continental is on the cutting edge of automotive technology. Many of their systems are already on the market, but their most exciting stuff is still under development. These advanced driver-assistance features promise to revolutionize motoring as we know it, nearly eliminating accidents, while making time spent commuting much more productive.