11. Mai 2021, 09:40 Uhr | Irina Hübner
The 77 GHz technology already in series production in the truck sector is now also being produced for passenger cars.
With the introduction of 77 GHz radar sensors for passenger cars, Hella is now further expanding its position in the field of radar technology. Series production of the latest 77 GHz radar technology for an international car manufacturer has now started at the Hella Electronics plant in Hamm.
The technology was already put into series production for the first time in the truck sector last spring. On the basis of various successfully acquired major orders both for passenger cars - including one from a German premium customer - and for trucks, Hella is planning further production start-ups to follow in the near future. In addition, Hella is already developing the second 77-GHz radar generation, which is scheduled to go into series production for another German premium manufacturer in 2024.
At the heart of Hella's 77 GHz radar sensors is the radar system chip, which is based on RF CMOS technology. Thanks to the special architecture, digital components as well as systems for self-diagnosis can be integrated on the chip in addition to the components for transmitting and receiving. The Hella radar sensors are also based on a modular, scalable platform concept. This means they support different vehicle architectures and interfaces such as Ethernet. Customer-specific requirements as well as current and future NCAP requirements can thus be flexibly implemented.
»With our innovative 77 GHz radar sensors, we are continuing to drive the trend towards automated driving,« says Björn Twiehaus, who as a member of the Hella Management Board is jointly responsible for the Electronics division. »By using highly efficient hardware and smart software, we are taking radar-based 360-degree environment awareness to the next level, driving safe mobility.«
On the road from assisted to autonomous driving, radar sensors have established themselves as one of the core technologies for seamless environment perception. Particularly with a view to functions such as autonomous parking or automated lane changes, 77 GHz technology is becoming increasingly important, as it offers a significantly wider signal bandwidth and thus improved environment resolution compared to 24 GHz. This makes it easier to detect and classify objects on the road.
Hella is continuously working on further increasing the performance of 77 GHz radar sensors. The second generation 77 GHz is characterized in particular by the use of the latest antenna and chip technologies. This further increases the ranges, extends the field of view and further improves the measuring capability at close range. Objects such as trucks, cars, two-wheelers and pedestrians can be detected and tracked even more precisely in this way, which ultimately leads to more informed decision-making rules, for example when initiating a lane change or parking. It also allows the position and height of even smaller objects such as curbs and roadside posts to be determined more accurately.