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In a recent study conducted by engineers at Mercedes-Benz, it was found that with the help of the company's DISTRONIC PLUS and Brake Assist PLUS, twenty percent of rear-end collisions could have been prevented in Germany alone. Even more noteworthy, the findings also revealed that on motorways, rear-end collisions could have been reduced even further, by an average of 36 percent.
The findings were based on a new procedure developed by Mercedes engineers - one that for the first time makes possible a predictive calculation of the usefulness of new safety technologies. Factors taken into account during the research included both official statistics and the analysis of the approximately 16,000 traffic accidents which have so far been studied within the framework GIDAS (German In-Depth Accident Study), as well as the reconstruction of more than 800 rear-end collisions.
For those of you unfamiliar with either DISTRONIC PLUS and Brake Assist PLUS, the systems are both radar-based, with around 40 percent of new S-Class models already equipped with the technology (and more than 80 percent of new C-Class models). DISTRONIC PLUS operates by keeping your vehicle at a previously chosen distance from the vehicle traveling in front of you, and, if necessary, is capable of braking your vehicle to a complete standstill, depending on the traffic situation.
In the event the traffic you're following slows too rapidly, the system provides a warning and calculates the required brake pressure required to safely stop the vehicle, which is then provided instantaneously by the Brake Assist PLUS system as soon as the brake pedal is depressed. Should you disregard the warning, the PRE-SAFE Brake system performs an emergency partial braking maneuver, significantly reducing the severity of the impact.
As for the potential impact Mercedes' safety systems are capable of making in the real world: in Germany, there are over 50,000 severe rear-end accidents every year, with 5,700 noting death or serious injuries. In the U.S., around 30 percent of all traffic accidents are of the result of rear-end collisions. Reducing both by 20 percent and the severity of even more would without question be a milestone achievement in improving automotive safety.
To learn more about Mercedes-Benz DISTRONIC PLUS and Brake Assist PLUS as well as their contribution to accident prevention, you can find the complete information in the official press release below.
OFFICIAL PRESS RELEASE
Recent Mercedes-Benz accident study calculation: 20 percent fewer rear-end collisions thanks to DISTRONIC PLUS and Brake Assist PLUS
Stuttgart - DISTRONIC PLUS and Brake Assist PLUS, the Mercedes-Benz assistance systems based on sophisticated radar technology, make an effective contribution to accident prevention. This is the conclusion reached after an analysis carried out by Mercedes-Benz on the basis of representative accident research data. With the help of this technology an average of one fifth of all rear-end collisions could be prevented in Germany alone. And on motorways, rear-end collisions could be reduced even further: by an average of 36 percent. The Mercedes-Benz systems warn drivers when they are maintaining too little distance from the vehicle traveling in front and provide support in the event of emergency braking.
Engineers working for the Stuttgart-based car manufacturer have developed a procedure which for the first time makes possible a predictive calculation of the usefulness of new safety technologies. For this the specialists have taken into account both official statistics and the analysis of the approximately 16,000 traffic accidents which have so far been studied within the framework GIDAS (German In-Depth Accident Study).
The evaluation of the safety potential offered by the DISTRONIC PLUS and Brake Assist PLUS assistance systems is based on the reconstruction of more than 800 rear-end collisions. The focus of the representative study was the question: how many of those accidents could have been avoided if all the passenger cars had been equipped with this Mercedes-Benz technology?
The results confirmed the great safety effect of the systems: with DISTRONIC PLUS and Brake Assist PLUS an average of more than 20 percent of all rear-end collisions could be prevented. In a further one-quarter of all collisions the systems could contribute to a significant reduction of the severity of the accident.
The greatest safety potential is offered by the interaction of modern radar and braking technology on motorways, where around 36 percent of all rear-end collisions could be avoided.
Around 40 percent of all S-Class saloons equipped with radar technology
The DISTRONIC PLUS proximity control system keeps your vehicle at a previously chosen distance from the vehicle traveling in front and, if necessary brakes your vehicle to a complete standstill, depending on the traffic situation. If the distance to the preceding vehicle narrows down too rapidly, the system warns the driver and calculates the required brake pressure, which is then provided instantaneously by the Brake Assist PLUS system as soon as the brake pedal is depressed. Should the driver disregard the warning, the PRE-SAFE® Brake system performs an emergency partial braking manoeuvre, significantly reducing the severity of the impact.
Since 2005, Mercedes-Benz has offered these radar-based assistance systems for the S-Class, and since 2006 for the CL luxury coupé. Around 40 percent of all German customers buying new S-Class vehicles equip them with this safety technology; while the proportion of CL-Class outfitted with DISTRONIC PLUSand Brake Assist PLUSis even higher, exceeding 80 percent. Since 2005 Mercedes-Benz has delivered a total of more than 45,000 passenger cars featuring these innovative systems.
In order to calculate the safety benefits provided by this technology, Mercedes-Benz specialists make use of relevant data from the individual accidents, such as speed, distance to the other vehicle and driver’s braking behaviour. With these data, together with the governing algorithms of DISTRONIC PLUS and Brake Assist PLUS, the individual speed reduction is calculated. The engineers from Mercedes-Benz decided to apply a conservative calculation principle and did not take into account, for example, the additional safety-enhancing effect of the visual and audible distance warnings which prompt the driver to apply the brakes himself if the system determines it can no longer avoid a collision by itself. The analysis is based on the assumption that the drivers ignore these warnings.
In Germany there are over 50,000 severe rear-end collisions every year, causing death or serious injuries to around 5,700 people. Of all the accidents involving personal injury, one in six is a rear-end collision. In the United States this accident type makes up around 30 percent of all serious traffic accidents.
The engineers of the Stuttgart-based car manufacturer continue to work tirelessly on the development of further driver assistance systems aimed at helping to prevent road accidents.
Source: Distronic Plus and Brake Assist Plus Reduce Rear-end collisions by 20% - eMercedesBenz.com
