Porsche Engineering Magazine
Total Page:16
File Type:pdf, Size:1020Kb
Issue 1/2009 Porsche Engineering Magazine No interference A look back at the past New EMC test chamber in operation The new Porsche Museum Perfection is in the detail Safely tucked in with Porsche Focus on Exclusive & Tequipment New hospital bed design Contents Contents Editorial 3 About Porsche Engineering 4 Safely tucked in with Porsche 5 Developing a hospital bed Designing new machines 8 Social commitment in Markgröningen A roof over your head 10 Developing the Targa glass sunroof EMC testing 12 No interference Review 14 Milestones in customer development Development history 16 The new Porsche Museum Focus on Exclusive & Tequipment 19 Quality comes from attention to detail Panamera 23 The fourth dimension Special feature 26 The No. 1 2 Editorial Dear Readers, We are ambitious. Our aim is always to be one step ahead. Our ambition drives us to be faster than others. Porsche is famous for speed and for technical depth. Because we focus on creating the products of the future. These virtues are more important than de monstrate not only our technical skills ever in light of the major economic chal- but also our social commitment. lenges we are all facing. In all areas of technology we must take what is good Even during the development of state- and improve on it. of-the-art hospital beds our engineers have followed the principle that there Our ambition is what transforms every is always room for improvement and customer project into a challenge. Our have left their mark on the design. We engineers know that there is always room also give an insight into some of the for improvement. They translate this prin- products we have developed for Porsche ciple into every language and are under- Exclusive & Tequipment which make each stood throughout the world. Anyone who of our cars unique. is constantly looking ahead can also occasionally take the time to glance over Porsche and innovation have always their shoulder. In this issue we have gone hand in hand. We offer you the allowed ourselves the luxury of looking chance to find out about the inspira- back over our history. You can find out tional Porsche fourth dimension, the more about Porsche’s very first model and new Panamera. You can also take a get a taste of the newly opened Porsche look at our new EMC test chamber in Museum in Stuttgart. The museum has Bietigheim. Come with us on a brief on display some of the many and varied journey through the world of develop- Porsche customer development projects ment and find out first hand about our from the last 75 years. In this issue we fascinating work and the principles that have highlighted some examples. guide us. Despite the challenges mentioned, we deeply value using our skills on behalf We hope you enjoy the latest issue of of less privileged people. You can read our magazine. about the development of a special production machine for a workshop for Dr. Peter Schäfer and Malte Radmann, dis abled people which allowed us to Managing Directors of Porsche Engineering 3 Impressum About Porsche Engineering At Porsche Engineering, engineers are automotive developer for your project working on your behalf to come up with or would prefer a specialist system new and unusual ideas for vehicles and developer, we can offer both, because industrial products. We develop a wide Porsche Engineering works at the inter- variety of solutions for automotive face between these two areas. All the manufacturers and suppliers, ranging expertise of Porsche Engineering has from designing individual components been brought together in Weissach, but and complex modules to planning and is available all over the world, including implementing complete vehicle devel- on-site at your premises. Wherever opment projects, including managing we work, we bring a part of Porsche the start of volume production. What Engineering with us. If you would like to makes our services special is that they find out more about the different areas are based on the expertise of a major of our business, please visit our website car manufacturer. Whether you need an at www.porsche-engineering.com Impressum • Porsche Engineering Magazine Publisher Editor Porsche Engineering Group GmbH Nicole Möller Address Design: Machart–Design, Stuttgart Porsche Engineering Group GmbH Repro: Piltz Reproduktionen, Stuttgart Porschestraße Printing: Leibfarth&Schwarz, Dettingen/Erms 71287 Weissach, Germany Translation: TransMission Übersetzungen, Stuttgart Tel. +49 711 9118 88 88 Fax +49 711 9118 89 99 All rights reserved. No part of this publication may be reproduced without the prior permission of the E-mail: [email protected] publisher. We cannot guarantee that unrequested Website: www.porsche-engineering.com photos, slides, videos or manuscripts will be returned. 4 Electrics & Electronics Völker The Porsche under the Hospital Bed Safely tucked in with Porsche. Porsche Engineering which specialises in the production of develops new drive and control units for hospital and innovative hospital and nursing beds. In order to ensure that its products nursing beds. meet the requirements of professio nal hospital care and comply with the latest technical standards, Völker turned to Even hospital beds need good requirements and short innovation Porsche Engineering for help. brakes cycles. The demands placed on these products are not only the result of legis- It’s true that the engineers at Porsche Manufacturers of medical products are lation and competition. Patients also Engineering are not accustomed to required to meet increasingly strict require the latest technology in the pro- dealing with hospital beds on a daily standards. The development process is ducts they use. One company that has basis, but they are experts in devel- characterised by high safety and quality to meet these high standards is Völker, oping electronic systems and electric 5 Electrics & Electronics Völker motors. In the many departments at One type of motor for all the drive Single-fault safety guaranteed Porsche Engineering, a wide variety of functions products are developed for customers The new electronic system developed every day, so an innovative drive system What makes this development so spec- by the Porsche engineers guarantees for hospital beds was another exciting ial is that the new HV02 motor can be single-fault safety without the patient new project. used as the main drive unit for a wide functions needing to be blocked, for range of functions, such as the tele- example. A pulse width modulation sys- A Porsche in the hospital scopic lift. It can also function as a single tem ensures that the bed moves at a drive unit for the trapezoid lift and the uniform speed, even with varying loads, This development project resulted in propulsion system and as a dual drive which has allowed the safe operating engineering a system based on a LIN unit for adjusting the mattress frame, load to be increased to 250 kilograms. which is divided into four parts. The A 300 VA transformer is used for this motor is designed for easy installation, purpose. This is the equivalent of dou- as in the automotive industry. The con- ble the previous power supply. The sig- nector system meets the highest indus- nificant power reserve in the trans- try standards. No wire or soldered joints former also gives it a longer duty cycle are needed as the connectors are bas- (20 percent instead of the conventional ed on the Poka-Yoke principle, which 10 percent). At the same time, the heat helps to prevent faults. loss from the transformer has been re- duced. The newly developed nurse control unit The developers from Porsche Engineer- ing naturally focused on good brakes, The newly developed battery system in the same way as they would do with a also offers a number of benefits. The sports car. Even with larger loads, such increased capacity of 7.2 Ah allows the as heavy patients, the brakes ensure adjustment functions to be used with out that the mattress frame remains safely mains power supply for a longer period in its preset position by using a specific of time which increases patient safety. holding torque. The battery no longer functions only as an emergency backup. A dual drive unit is better The new hand control unit. Both devices are laser welded to ensure that they are robust and The dual drive unit in the centre of the water-tight bed moves the parts of the bed which support the patient's back and those (local interconnect network) bus, con- which support the thighs. The adjustment sisting of four basic components: an angles are permanently stored in the dual electric drive motor, a hand control unit drive system, which allows for positioning for patients, a nurse control unit and a without a homing mode and limit switch. power supply. The system meets the Another benefit of the new unit is that latest safety standards in the field of partial manual adjustment of the back medical technology and is designed for support is now possible without the bed use in a demanding hospital environ- having to move to the limit switch before A glimpse into the internals of the DA01. The easily ment. it can continue operating. removable batteries are clearly visible 6 Electrics & Electronics Völker dundant tests. If the tests do not pro- duce plausible results, the power and therefore the control functions are shut off. The developers have ensured the safety of the system by taking a func- tional approach to safety, similar to that employed in the automotive industry, and by applying a highly detailed FMEA (failure mode and effects analysis). Service technicians in mind It is only to be expected that the engi- neers at Porsche Engineering constant- ly come back to automotive concepts.