TU-TESL

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According to foreign media reports, Hella, an expert in lighting and electronic equipment, cooperated with Porsche to start mass production of "humidity detection" function and support Porsche to realize the world's first "wet mode". This function can detect water on the road and adjust the driving system to a more stable driving state. In order to achieve "humidity detection", the structural health and knock emission (shake) sensor produced by Haila has been integrated into the front wheel arch liner of the new Porsche 911. The shake sensor can identify road conditions and detect water on the road. The driver often underestimates the humidity of the road, so when the vehicle drives on the very wet road, it will break away from the road and lose traction, leading to accidents. "If it's necessary to prevent this from happening, drivers must know the road conditions in a timely manner to adjust their behavior," said Michael Jaeger, executive board member of Hella's electronic equipment department who is responsible for the implementation of devices and sensors In the field of driver assistance system, Haila has further developed the shake technology, which is a supplement to the existing assistance and safety system, because this technology can not only make the vehicle "see" the surrounding environment through radar and camera system, but also "feel" the surrounding environment, so it can understand the area near the vehicle that the driver assistance system cannot see. For example, through piezoelectric components, the shake sensor can detect the vibration of water droplets in the air and the noise in the air, and determine the humidity between the tire and the road. If the system of the new Porsche 911 detects a slippery road surface, the Porsche stability management (PSM) and Porsche traction control management (PTM) are pre-set. The driver will also receive reminders and suggestions to turn on the wetland driving mode, and then the electronic unit and other systems will adjust themselves to ensure the maximum driving stability. "This is a huge advantage over most other systems so far, most of which are only alerting drivers when there is an emergency on a very wet road," says Michael Jaeger In addition, the humidity sensor can also be used in automatic driving scenarios. "If you want to determine the static friction and braking distance, you need to get accurate road condition information, and shake can reliably detect such information." Since the spring of 2019, the Porsche 911 has been open to order in Europe. In addition to the shake sensor, Hella also provides the interior lights, body control module and accelerator pedal sensor for the Porsche 911. (all pictures in the article are from Haila)