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Press release #Automotive Aftermarket

Bosch calibration systems allow efficient and precise readjustment and recalibration

Integrated system for accurate calibration of driver assistance systems

  • Optimized Bosch ADAS positioning software simplifies and speeds up the exact positioning of the calibration device
  • New vehicle-specific calibration mats make it easier to calibrate surround and rear cameras with millimeter precision
  • Special calibration target allows precise calibration of modern lidar sensors in conjunction with the Bosch DAS 3000 calibration device
Nico Krespach

Nico Krespach >

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Karlsruhe - With driver assistance systems becoming increasingly common in modern passenger cars and vans, car workshops are more and more frequently having to recalibrate these camera-based and sensor-assisted systems following servicing or repair work. For the professional readjustment and recalibration of sensors, Bosch offers workshops an integrated system comprising Esitronic 2.0 Online software, KTS-series diagnostic testing equipment, and a range of calibration fixtures from the DAS 3000 computer-controlled recalibration and readjustment device family. Bosch has now further improved its positioning software, making target positioning considerably faster. It now takes half as much time to precisely align the reference boards as when using a tape measure or laser measurement. The Bosch delivery scope for the calibration of driver assistance systems now also includes special floor mats for the calibration of rear and 360-degree surround cameras in Mercedes and Volkswagen passenger cars. And with a new board for the DAS 3000, workshops can now also precisely recalibrate lidar sensors.

Extensive experience of sensor production

In the automotive and consumer electronics field, Bosch is one of world’s biggest sensor manufacturers. When developing recalibration systems for professional workshop use, therefore, Bosch can draw on extensive expertise and broad general knowledge in the area of sensor technology and sensor interaction in modern driver assistance systems. Bosch calibration systems enable workshops to recalibrate the vehicle sensors of practically any passenger car and van in the market – precisely and very efficiently. The computer-controlled DAS 3000 calibration device, for example, can be set up for the calibration of driver assistance systems in less than ten minutes. This is roughly 50 percent faster than with a conventional laser-based system.

Set-up time for aligning the calibration device halved

The rapid and uncomplicated set-up of the calibration device is due in great measure to Bosch’s new ADAS positioning software. The most time-consuming part of the process of calibrating driver assistance systems is the exact, correct positioning of the target in front of the vehicle. Cameras integrated in the calibration device record the reference points and boards on and in front of the vehicle. With its image-processing algorithms and sensor-specific programming flows, the positioning software guides users, with graphic animations showing them exactly the target and actual positions of the calibration boards to the front, rear, and sides of the vehicle. In addition, it digitally visualizes values such as distance, yaw angle, and lateral displacement. As safety relevant components, sensors have to be readjusted with millimeter accuracy. Even the tiniest deviations can compromise the systems’ roadworthiness. Digital, software-assisted alignment allows levels of precision to be achieved that satisfy the safety requirements for Level 3 automated vehicles. Compared with alignment using a tape measure or laser measurement, the time to set up the calibration device is halved.

The entire calibration process is controlled by Bosch Esitronic 2.0 Online workshop software. It walks users through the entire process step by step. A vehicle-specific database provides set-up advice on subjects such as the right type of calibration board and the distances required. Finally, a report is generated confirming that calibration has been performed correctly in accordance with the manufacturer’s stipulations.

Calibration floor mats for VW and Mercedes surround and rear cameras

Bosch now provides vehicle-specific calibration floor mats that allow workshops to extend their services to include the calibration of rear and 360-degree surround view cameras. The set for the readjustment of the surround-camera system in Volkswagen vehicles comprises two waves-free, wear-resistant floor mats. For recalibration, the calibration mats are rolled out alongside the vehicle, and manually brought into the correct position. The vehicle-specific floor mat for recalibrating the rear camera in Volkswagen and Mercedes passenger cars is furnished with an L-shaped metal frame. This ensures correct alignment when positioning is done digitally using the Bosch DAS calibration device.

Special calibration board for the readjustment of lidar sensors

In the near future, Bosch expects to see a significant increase in the number of lidar sensors installed in vehicles. Up to now, they have featured mainly in premium vehicles. A new UN regulation approving Level 3 automated driving from January 2021, together with similar national regulations in many countries, means that ultra-precise lidar sensors are gaining in importance. This makes it all the more important that lidar sensors be precisely readjusted following servicing and repair work. For this purpose, Bosch has developed a special calibration board that can easily be fixed to the DAS 3000 calibration device. Depending on where the lidar sensors are installed, the lidar board can be set at any height between 300 and 800 millimeters. The required height is set precisely using Bosch’s proprietary GLM 120/150 laser measuring module. The module can also be used to correctly set the pitch and roll angle. Bosch Esitronic 2.0 Online workshop software walks users step by step through the process of aligning the lidar board, including distance measurement, lateral offset, and the calibration process itself.

Readers’ contact inquiries:
Robert Bosch GmbH
Automotive Aftermarket
Phone +49 9001 942010
E-mail: Kundenberatung.Kfz-Technik@de.bosch.com

The Automotive Aftermarket division (AA) provides the aftermarket and repair shops worldwide with modern diagnostic and repair shop equipment and a wide range of spare parts – from new and exchange parts to repair solutions – for passenger cars and commercial vehicles. Its product portfolio includes products made as Bosch original equipment, as well as aftermarket products and services developed and manufactured in-house. About 14,000 associates in more than 150 countries, as well as a global logistics network, ensure that spare parts reach customers quickly and on time. AA supplies testing and repair-shop technology, diagnostic software, service training, and information services. In addition, the division is responsible for the “Bosch Service” repair-shop franchise, one of the world’s largest independent chains of repair-shops, with some 15,000 workshops, and more than 1,000 “AutoCrew” partners.

Additional information can be accessed at www.boschaftermarket.com

The Bosch Group is a leading global supplier of technology and services. It employs roughly 395,000 associates worldwide (as of December 31, 2020). The company generated sales of 71.5 billion euros in 2020. Its operations are divided into four business sectors: Mobility Solutions, Industrial Technology, Consumer Goods, and Energy and Building Technology. As a leading IoT provider, Bosch offers innovative solutions for smart homes, Industry 4.0, and connected mobility. Bosch is pursuing a vision of mobility that is sustainable, safe, and exciting. It uses its expertise in sensor technology, software, and services, as well as its own IoT cloud, to offer its customers connected, cross-domain solutions from a single source. The Bosch Group’s strategic objective is to facilitate connected living with products and solutions that either contain artificial intelligence (AI) or have been developed or manufactured with its help. Bosch improves quality of life worldwide with products and services that are innovative and spark enthusiasm. In short, Bosch creates technology that is “Invented for life.” The Bosch Group comprises Robert Bosch GmbH and its roughly 440 subsidiary and regional companies in some 60 countries. Including sales and service partners, Bosch’s global manufacturing, engineering, and sales network covers nearly every country in the world. With its more than 400 locations worldwide, the Bosch Group has been carbon neutral since the first quarter of 2020. The basis for the company’s future growth is its innovative strength. At 129 locations across the globe, Bosch employs some 73,000 associates in research and development, of which nearly 34,000 are software engineers.

Additional information is available online at www.bosch.com, www.iot.bosch.com, www.bosch-press.com, www.twitter.com/BoschPress.

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