Page 40 - ATZ11 November 2019 Professional

NEWS PRODUCTS

Volkswagen | Dual SCR Technology

Reduces NO Emissions by 80 %
x
Volkswagen has introduced a twin dosing system in its new TDI Evo engines
to improve the efficiency of the SCR exhaust gas treatment process. This
involves the use of two SCR catalysts, which reduces NO x levels by around
80 % compared with the previous generation of the respective models.
The first close-coupled SCR catalyst is located between the turbocharger,
the diesel oxidation catalytic converter, and the flexible connection to the
silencer pipe. This arrangement means that the necessary exhaust gas tem-
peratures of 220 to 350 °C can be achieved quickly after a cold start. The sec-
ond SCR catalytic converter is further away from the engine and the tempera-
ture can be as much as 100 °C lower, which still allows the system to achieve
© Volkswagen stream of the SCR system prevents excess ammonia slip. The new system
very high conversion rates. In addition, a blocking catalytic converter down-

will be used for the first time in the Passat 2.0 TDI Evo with the 110-kW engine.
The VW Golf 8 will be fitted with a similar system.

Brose | Integrating All Door Functions
A new generation of Brose door control units will integrate all the door involve the analysis of sensor data and the transmission of image signals,
functions from the window regulator to collision protection. This will cut which push conventional electronics architectures to their limits, because
costs, save space, and reduce weight and also allow for new functions. large volumes of data need to be sent and processed without any notice-
With a simple gesture, the side door will open automatically. A radar able delay. This is the reason why Brose is developing a new generation of
sensor will scan the environment to prevent collisions. While the car is door control units which process all the functions locally in the door. These
on the move, monitors in the doors will show the image from the side include innovative approaches such as voice recognition in the vicinity of
cameras. At the same time, the interior of the car will be quieter because the vehicle and pre-processing of all the antenna signals that are received.
the speaker control unit will use active noise canceling to reduce road The first door control unit of this kind could go into volume production as
noise and enhance the sound of the infotainment system. The challenges early as 2025.

© Brose

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