Preh zone climate controls on Porsche 911
For the center console of the new Porsche 911 models, Preh has developed a climate control system with a corresponding two-zone temperature control algorithm, and has launched it into mass production. The operating system has built-in buttons to adjust the seat ventilation and heating functions. Produced at Preh's headquarters in Bad Neustadt, Germany, it comes in three variants.
A special feature of Preh’s solution is an individualized comfort control for the driver and passenger using a fanless temperature sensor. The sensor was placed in the interior of the Porsche 911 as a separate element to ensure optimal conditions for design and function.
For the air conditioning control concept, special function algorithms had to be developed to ensure climate comfort during engine start and stop operations. Here the software concept prioritizes components and actions in the control system while regulating thermal and energy management issues.
Another special feature is the electronic integration of the climate control system, in which the electronics serve not only the climate control function, but also as a master switch unit for chassis control functions.
About Preh
Founded in 1919, Preh is a globally operating group of enterprises with more than 2,750 employees in Germany, Portugal, Mexico, the U.S.A., Romania and China. Preh is headquartered in Bad Neustadt a.d. Saale. Preh’s development and production competencies focus on vehicle interior control systems, sensor systems, electronic control units and assembly systems for the world’s leading vehicle manufacturers.
Apart from the parent manufacturing and development center in Bad Neustadt, Preh oversees manufacturing facilities in Portugal, Mexico, Romania and China, as well as a customer support center in Novi/Detroit, U.S.A. Since the end of June 2011, the Joyson Group of Ningbo/China holds 74.9 percent of Preh GmbH shares, while the remaining 25.1 percent are held by the Deutsche Beteiligungs AG and Preh management. The company achieved revenues of about €410 million in 2011. For more information, please visit: www.preh.com.
