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BMW trials robots at manufacturing plant

26 November 2020

The self-driving robots are used to move roll containers carrying parts around the extensive site.

Plant Wackersdorf supplies the BMW Group’s international assembly and production sites with car parts. In the hall of Supply Logistics, a self-driving robot maneuvers itself underneath a roller container with parts. Silently and with flashing lights, it picks up the container and begins to move through the logistics hall. The system is complicated and extensive; nobody can find their way around without a good sense of direction. But this is no problem for the transport robot, which is about the size of a suitcase. Flanked by radio transmitters and equipped with a digital map, it drives independently to the destination of the goods. When tugger train cross its path, a fitted sensor identifies the obstacle and stops the self-driving robot with car parts loaded weighing up to half a ton.

“The development of the Smart Transport Robot is an important milestone for the BMW Group when it comes to digitisation and autonomisation in production logistics. This innovation project makes an important contribution to the agility of the supply chain in Logistics and Production. It enables the supply chain to adapt to changing external conditions quickly and flexibly,” comments Dr. Dirk Dreher, Vice President of Foreign Supply at the BMW Group.

Measuring its distance to three radio transmitters allows the robot to calculate its exact position and route. With the help of sensors, it identifies critical situations and can respond accordingly, sharing the route with people and other vehicles. At a later point when the innovation is being implemented in series operation, a 3D camera system will make navigation even more accurate.

The transport robot will be able to function without the floor-mounted induction loops for navigation and will move freely within the space. The battery-powered radio transmitters mounted to the walls of the hall can be expanded to further areas in logistics flexibly without major effort and at low costs.

For the BMW Group, a self-driving robot tailored to meet the demands of the company’s supply logistics and production supply is a top priority. Besides custom-fit measurements for the containers to be transported, the vehicle also has sufficient battery capacity as the developers have drawn on the experience gained with BMW i: batteries previously fitted in BMW i3 vehicles are being sustainably reused. This BMW i3 battery module will provide eight hours’ worth of energy, covering a full shift.

The BMW Group has partnered with the Fraunhofer Institute for this project. The collaboration under the label of the BMW Enterprise Lab for Flexible Logistics was
established in September 2015. It aims to explore future solutions for logistics areas.

Initial findings were presented at LogiMAT 2016. In the future, the Smart Transport Robot can be deployed in both packing areas and in assembly logistics. This step in the automation simplifies the materials procurement process for workers in packing departments and reduces the supply space in the supermarket. The self-driving robot is being developed and tested at the BMW Group’s Innovation Park in Wackersdorf. This centre is the logistics hub for material management and just-in-sequence supply to BMW Group sites in ten different countries. Wackersdorf is also home to the cockpit production for several plants.

 
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