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Smart Cars Can Protect Drivers by Predicting Emergencies

Author: JasonLancaster
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Vehicle safety is a puzzling issue for automakers. Despite improvements in vehicle safety measures, vehicle-related fatalities in the U.S. have stayed the same over the years, with about 40 000 deaths a year. Why are fatalities continuing at the same level despite technology which makes cars safer? One suggestion is that it's not unsafe cars that are responsible for these deaths - it's the unsafe drivers behind the wheel.

New research from Robert Bosch LLC suggests that two out of every three drivers don't hit the brakes hard enough before an accident. This doesn't mean the driver wants the accident - it's simply the nature of the human condition. During an accident, a multitude of things are competing for the driver's attention, from multiple warning systems going off and distractions from other passengers, to the simple act of processing what's going on in the surrounding environment. All these combined together can delay the decision-making process a few milliseconds too long, and impair the driver's ability to hit the brakes fast enough, or with enough force.

The solution, according to Bosch, is a predictive brake-assist technology that will detect an anticipated accident and react by activating the brakes. The system will continuously monitor the surroundings on the road to determine stopping distance. With these calculations constantly running in the car's computer, the hydraulic brake is properly engaged for full-force braking once an impact is evident.

Although there's not enough research yet to know for sure, it's reasonable to think the predictive brake-assist technology will be useful in preventing some of the over 2 million front-end collisions that occur every year. However, some argue that this technology might actually decrease safety, because drivers might not fully understand how the system works and erroneously believe it will do most of the braking for them. They then might not try to stop the car themselves, increasing their risk of accident. This argument seems inane, but shouldn't be completely dismissed. More research and testing are needed before this system can be made mandatory.

Manufacturers are already beginning to develop predictive braking technology into their new vehicles. Some, such as Cadillac, Volvo, Toyota and BMW, are currently experimenting with the technology. Others have implemented the system into their new models. Mercedes-Benz's SL550 can detect an emergency by sensing the amount of pressure the driver applies to the brake pedal, and reacts by implementing the maximum power boost.

The predictive brake-assist technology is only one new electronic system to improve automotive safety. In addition to Bosch's proposed predictive brake assist technology, there's also something called "lane departure notification." Simply stated, lane departure notification uses an electric eye to determine if the car is driving outside the lines. This system would most benefit drivers who may be falling asleep, as driving outside the lane will trigger an audible warning.

In accordance with the theory that drivers may in fact pose a safety hazard to themselves, Bosch has proposed a modification to the current vehicle safety ratings. The proposed new safety ratings would include a sixth star, evaluating a vehicle's accident avoidance systems, such as the predictive braking and lane departure notification systems. This will help consumers to compare just how safe a vehicle really is, taking into consideration how it will help them avoid accidents, not just how the car will hold up in one.