Mobility Solutions

More safety for drivers, and a more secure load New cost-effective radar sensor for assistance and safety systems in commercial vehicles Bosch offers variants for 12- or 24-volt vehicle electrical systems

  • Mid-range radar sensor with 77 gigahertz
  • Ideal basis for extensive safety and assistance functions
  • Starting 2013, assistance functions will become mandatory for commercial vehicles in the EU
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  • September 18, 2012
  • Mobility Solutions
  • Press releases

press release

In commercial vehicles, safety and assistance functions help drivers and freight to reach their destinations safely. Under an EU regulation, most of the new heavy commercial vehicle models in excess of 3.5 metric tons will have to be equipped with advanced emergency braking systems (AEBS) and lane departure warning systems (LDWS) effective November 2013. These assistance functions support drivers during emergency braking and warn them if they unintentionally drift out of lane. With its MRR mid-range radar, Bosch has developed a technology that uses the 77-gigahertz frequency band, and thus provides especially precise data about the vehicles on the road ahead. “The new sensor for commercial vehicles is a high-performing and cost-effective basis for emergency braking systems, as well as for convenience functions such as adaptive cruise control,” said Gerhard Steiger, the president of the Bosch Chassis Systems Control division. Bosch offers a 12-volt version of the sensor for light trucks, and a 24-volt version for heavy trucks. Series manufacture will start in 2013.

Powerful and compact thanks to 77 gigahertz
A 77-gigahertz sensor is far more powerful than a 24-gigahertz one. Its object separation is up to three times more accurate, and it can measure speed and distance three to five times more accurately. It is also significantly more compact, and uses the 77-gigahertz frequency band, which has been permanently allocated to automotive applications worldwide. “The new MRR is especially suitable for vehicle platforms that are offered in all the world’s markets,” Steiger says. In addition, the measurement data from the sensor can be used to inform drivers how close they are to the vehicle in front.

Bosch employs silicon-germanium semiconductor technology for the high-frequency circuits. As they are highly integrated, they combine a simple mechanical design with small size and low weight. This means the sensor can be concealed in the bumper or mounted unobtrusively in the vehicle’s radiator grille. It is smaller and more cost-effective than the conventional 24-gigahertz sensors. The sensor is connected to the automotive electronics via CAN and Flexray interfaces.

For use at the rear of the vehicle, a 12-volt version is also available for light commercial vehicles. This allows drivers to be warned of vehicles that are in their blind spot, and that are approaching at speed from the rear. It also makes it much easier to reverse out of parking spaces where vision is restricted, as approaching vehicles can be reliably detected.

Mid-range radar sensor for commercial vehicles (YouTube) (Download)

Click here to find further information.

Mobility Solutions is the largest Bosch Group business sector. In 2015, its sales came to 41.7 billion euros, or 59 percent of total group sales. This makes the Bosch Group one of the leading automotive suppliers. The Mobility Solutions business sector combines the group’s expertise in three mobility domains – automation, electrification, and connectivity – and offers its customers integrated mobility solutions. Its main areas of activity are injection technology and powertrain peripherals for internal-combustion engines, diverse solutions for powertrain electrification, vehicle safety systems, driver-assistance and automated functions, technology for user-friendly infotainment as well as vehicle-to-vehicle and vehicle-to-infrastructure communication, repair-shop concepts, and technology and services for the automotive aftermarket. Bosch is synonymous with important automotive innovations, such as electronic engine management, the ESP anti-skid system, and common-rail diesel technology.

The Bosch Group is a leading global supplier of technology and services. It employs roughly 375,000 associates worldwide (as of December 31, 2015). The company generated sales of 70.6 billion euros in 2015. Its operations are divided into four business sectors: Mobility Solutions, Industrial Technology, Consumer Goods, and Energy and Building Technology. The Bosch Group comprises Robert Bosch GmbH and its roughly 440 subsidiaries and regional companies in some 60 countries. Including sales and service partners, Bosch’s global manufacturing and sales network covers some 150 countries. The basis for the company’s future growth is its innovative strength. Bosch employs 55,800 associates in research and development at 118 locations across the globe. The Bosch Group’s strategic objective is to deliver innovations for a connected life. Bosch improves quality of life worldwide with products and services that are innovative and spark enthusiasm. In short, Bosch creates technology that is “Invented for life.”

Further information is available online at and,

PI7819 - September 18, 2012

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