Automotive Safety Sensors - Requirements, Features, Functions and Applications
Sensors are the crucial sensory organs of vehicle safety systems: Recognizing accident hazards and events in milliseconds, they activate and control crash avoidance and occupant protection systems accurately, reliable and effectively. Micro-mechanical oscillators feel vibrations due to shocks, thus controlling seat belt pre-tensioners and airbags according to the crash type and severity. Micro-mechanical gyroscopes register any vehicle rotations, thus stabilizing the vehicle path and movement as needed. Driver assistance systems controlled by cameras keep the vehicle in the lane and recognize a pedestrian surfacing in front of the vehicle. Radar and laser beams are scanning the road for frontal, side and rear collisions. In order to adequately control restraint systems, crash sensors must accurately discriminate frontal crashes, side impacts, rear-end collisions and vehicle rollover. New tests such as the lateral pole crash or the small overlap frontal crash continuously increase the requirements to the crash sensors and the intelligent restraint control. Utilizing predictive sensors will effectively increase the effectiveness of occupant protection systems. During multiple collisions, the restraint controller can activate the vehicle brakes in order to reduce the crash severity. Interior sensors recognize the presence, position (out-of-position), size and weight of the occupants, thus tailoring the protection specifically to each occupant. Driver assistance and crash avoidance systems are utilizing three types of sensors: 1. Inertial sensors to monitor the vehicle movements, both accelerations along and rotations around the vehicle axes. Utilizing micro-electro-mechanical systems (MEMS) smaller than one tenth of a millimeter, they are extremely sensitive to control the vehicles intended path by activating the steering and braking system. 2. Surround sensors such as radar, laser, ultrasonic and cameras scan the vehicle environment for any hazards, not only for driver information and warning, rather to avoid accidents by activating the brakes and the steering. Even today, autonomous driving in specific situations is possible, such as the adaptive cruise control 3. Communication with satellites (GPS), from car-to-car- and from car-to-infrastructure (C2C2X) along with digital maps will play an important role in the future of automotive safety systems. The seminar illustrates the physical principles of these sensor and measuring systems, their characteristics, their advantages and drawbacks with respect to specific applications, along with their applications in today?s and future vehicle safety systems.
Who should attend?
The seminar addresses technicians and engineers working in research and development in the automotive industry, especially systems engineers, project engineers and project managers as well as all experts from vehicle safety, who would like to get an overview of the sensors used in current and future automotive safety systems.
- Introduction: Automotive sensor systems
- Physical sensor and measurement principles
- Requirements and applications in automotive safety systems
- Passive Safety:
- Crash sensors, rollover sensing, pedestrian impact sensors, predictive crash sensors, sensor topologies and configurations
- Interior sensing, occupant sensing
- Intelligent restraint control, restraint triggering algorithms, structure and functions of restraint controllers
- Active Safety:
- Radar-, laser- and ultrasonic sensors, sensor data analysis and evaluation, system control algorithms
- Monocular and stereo camera, Photon-Mixing Device, digital image processing
- Communication systems
- Sensor fusion
Dr. rer. nat. Lothar Groesch
Groesch Automotive Safety Consulting
Dr. Lothar Groesch has been working in safety engineering for more than 40 years, both at one of the leading OEMs in Passive & Active Safety, and with a major supplier in pioneering new automotive safety sensors & systems. From 2000 to 2009, he worked in the United States as a Product Director for Automotive Safety Systems, thus he is particularly familiar with U.S. specific requirements. Although he only joined the carhs team quite recently, he has a long experience in guest teaching at several universities in the U.S. & Germany, as well as in company internal training seminars, technical marketing, customer presentations & workshops. In 2009 Dr. Grösch has founded Groesch Automotive Safety Consulting and is primarily working in driver assist and accident avoidance systems.
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All prices are exclusive of VAT.