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Head-up displays

Improved human-machine dialog in trucks

A head-up display shows information where drivers need it – directly in the line of sight. For Continental the technology leads to a dialog without word between drivers and their vehicles.

The head-up display for commercial vehicles is available as windshield- or combiner-HUD (Photo: Continental)

At the 66th International Motor Show Commercial Vehicles in Hanover, Continental presented, among other products, its head-up displays for truck and bus applications under the slogan "Tradition. Trust. Transformation." "Digitalization is a tremendous opportunity for the transport industry. It makes innovations such as the head-up display or automated driving possible and ensures greater safety and efficiency on the road," said Nikolai Setzer, member of the Executive Board at Continental.

The advantage of head-up displays is that drivers receive relevant driving information without having to take their eyes off the traffic. Continental supplies two basic versions of the HUD to vehicle manufacturers: The windshield HUD is specially developed for the commercial vehicles popular in the U.S., which have flatter windshields. By contrast, the combiner HUD uses a transparent disk (combiner) in front of the windshield to reflect the image. This version is suitable for vehicles commonly used in Europe, for example, which have steeply angled windshields.

The combiner Head-up display (CHUD) is used to project a virtual image into the driver’s field of view by means of an optical system. Important vehicle information can be displayed directly on the screen, for example warning messages, velocity/rotational speed, navigation, Advanced Driver Assistance Systems, and environment sensor systems. The information for the projection comes for example via CAN or via graphic interfaces. The choice of information displayed on the screen can be adapted to the customers’ requirements. CHUD is a customer specific product, which is adapted individually, depending on the installation space.

"We see the head-up display as an important element of future human-machine dialog for greater safety in commercial vehicles, in which the driver receives advance information about driving maneuvers planned by the vehicle during automated driving," explained Dr. Michael Ruf, head of the Commercial Vehicles and Aftermarket business unit at Continental.