ZF to supply Chinese OEM with 4D Full-Range Radar
ZF is to begin supplying its Full-Range Radar technology to China’s SAIC Motor Corporation from 2022.
The ZF Full-Range Radar perceives vehicle surroundings in four dimensions, including height, making it similar in capability to optical sensors such as cameras and LiDAR.
In combination with these technologies, high-resolution radar can help provide the necessary safety and reliability for semi to highly automated driving including level 4.
Full-Range Radar technology offers high resolution for four dimensions: range, velocity, azimuth (horizontal) and elevation. The addition of the elevation angle helps generate an enhanced 3D image of the traffic situation, enriched with speed information, resulting in high-resolution environment sensing. This type of data helps a vehicle on a motorway to detect the end of a traffic jam under a bridge at an early stage and brake accordingly.
The Full-Range Radar also provides information that helps detect the edge of the road and whether there are free passing areas at the side of the road.
Full-Range Radar has considerably higher resolution than mid-range radars, which typically only have 12 channels (three transmitters, four receivers). ZF says the number of channels in its Full-Range Radar is 16 times greater: Four Monolithic Microwave Integrated Circuit (MMIC) chips are combined resulting in a total of 192 channels available.
“ZF’s Full-Range Radar represents a significant step forward in sensing technologies,” explains Christophe Marnat, executive vice president, for ZF’s Electronics and ADAS division. “With its high levels of object and scene recognition and long-range detection, the Full Range Radar is a key to help meet the high perception requirements of L3 and L4 AD at a competitive price level. This sensor is also capable of significantly increasing the potential performance of advanced safety and L2+ driving applications.”
The Full Range Radar‘s high information density enables very detailed object recognition, according to ZF. For example, it receives around 10 data points from a pedestrian instead of just one or two compared to typical automotive radars, allowing more precise information as radars register the speed of the measured object for each measuring point.
ZF claims its Full-Range Radar can even resolve the movement of individual limbs – allowing the sensor to potentially recognise in which direction the pedestrian is walking.
ZF says Full-Range Radar is an important addition to its comprehensive sensor set for automated driving functions. With an aperture angle of +/-60 degrees, it is designed for a wide range of situations: from slow city traffic to driving on country roads and motorways.
At 350 meters, ZF states that its range is well above the current state-of-the-art. It utilises the 77 gigahertz band and the Fast Ramp Frequency Modulated Continuous Wave (FMCW) modulation shared with other radar sensors from ZF.