7/7/2023 0 Comments Ibooster f1To ensure the maximum possible availability in the event of a failure, redundancy must be built into the system as a safeguard. When the task of driving is delegated to the car itself, this imposes particular requirements on safety-related systems such as the brakes. Department of Transport and the National Highway Traffic Safety Association, for example.ĮSP: The electronic stability program plays a central role in automated driving. This technology will enable car manufacturers to comply with the safety requirements as proposed in the Federal Automated Vehicles Policy documents from the U.S. In the rare case of a fault, at least 50 percent of the electric steering servo assistance can still be provided. Even in fallback mode, fail-operational capability allows drivers and automated cars to continue using essential steering functions. Bosch sees Lidar sensors as an important addition to its portfolio.Įlectric steering: Fail-safe, electric power steering is a key technology for automated driving. Automated cars base their driving strategy on this fusion. The different sensor principles complement each other very well, and use data fusion for reliable recognition of the surroundings. Lidar sensor: In addition to radar, video and ultrasonic sensors, Bosch uses lidar sensors in its automated test vehicles. ![]() Optical character recognition enables it to reliably read lettering and numbers on traffic signs. Where there are no road markings, for example, the system can reliably ascertain whether the road verge can be driven on or not, and the stereo video camera can also recognise partially obscured pedestrians. Thanks to an innovative multi-path approach and artificial intelligence (AI), reliable object recognition is possible. It not only registers objects spatially and determines their distance, but above all also recognises clear spaces. Video sensor: With a 3D measuring range of over 50 metres, the Bosch stereo video camera provides important optical information about the vehicle's surroundings. These echoes are registered by the sensors and analyzed by a central control unit. ![]() They send out short ultrasonic impulses that are reflected by obstacles. These sensors employ the sonar technique, which is also used by e.g. ![]() Ultrasonic sensor: In automated driving, ultrasonic sensors are above all needed for recognition of the surroundings within a close range of up to six metres, and at low speeds such as during parking. The position of the object can be ascertained by comparing the amplitude and phase of the measured radar signals. The relative speed and distance of objects are measured using the Doppler effect and the delay generated by the frequency shifts between emitted and received signal. These waves are reflected by objects in front of the vehicle. To this end, Bosch radar sensors send out frequency-modulated radar waves via a transmitting antenna. The main task of a radar sensor is to detect objects and measure their speed and position relative to the movement of the vehicle. Radar sensor: As one of several sensor principles, up to ranges of around 250 metres, radar sensors provide important 360-degree information about the surroundings for automated cars. Few automotive suppliers worldwide have as much knowledge in this area as Bosch, in part because the supplier of technology and services manufactures most of the components needed for automated driving listed below: The key to success is an in-depth understanding of all vehicle systems. Stuttgart – Automated driving impacts the entire car: its powertrain, brakes, steering, display instruments, navigation, and sensors, as well as connectivity inside and outside the vehicle. Reliable environment recognition requires combining data from different sensor principles.Bosch manufactures many of the components needed for automated driving in-house.Redundancy in safety-critical systems such as braking and steering is a must.Automated driving has an impact on all areas of a car and requires profound systems expertise.
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