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classic stamped-steel car plant, but eliminating the press shop and the paint shop saves time, as does using ultrasound and infra-red to speed glue-setting times. Production line investment
is lower, too, with fewer conveyors, no welding and, apart from the glueing robots, the handling machines are lighter-duty models, as they don’t have to carry the same weight as steel panels. The body shop is also quieter and cleaner than a traditional metal-bashing plant, although some of the environmental claims for the i3 facility depend on another plant spray painting the body panels. BMW claims that in the 100 or so crash tests it has performed on
the i3, its carbon-fibre construction is at least as safe, if not safer, in a crash – particularly the side-impact pylon test, where honeycomb sill sections absorb impact more successfully than metal. In the event of an impact, the main battery is isolated, using an explosive fuse, while the residual system charge is drained and the motor regeneration electronics are isolated. The i3’s 230kg, 22kWh square battery pack sits under the floor,
cooled by passing wind and the car’s air-conditioning, is protected by the chassis and carbon fibre body. It uses 96 Samsung cells, but the installation, the aluminium-alloy case, and the control electronics and software are BMW design.
New move to ensure safe software development processes
To help OEMs comply with key industry safety-related systems, PTC has released the latest version of its application lifecycle management solution PTC Integrity, which has been certified as fit for purpose for functional safety development, in alignment with IEC 61508 and ISO 26262. The software manages all global software development processes
and connects all software engineering artefacts, including requirements, models, code and testing, to ensure comprehensive lifecycle traceability. Its open architecture allows it to integrate disparate tools into a streamlined software system engineering process to enable the orchestration of software change and collaboration across the technology supply chain. The PTC Integrity development organisation has also achieved
Capability Level 2 under the Automotive SPICE (Software Process Improvement and Capability Determination) framework. “Automotive development organisations are managing complex requirements for embedded software in their products,” explains Jake Simpson, divisional general manager, ALM segment, PTC. “Continuing to certify PTC Integrity with automotive safety industry standards like A-SPICE and ISO 26262 will help our customers comply with functional safety standards to ensure safe software development processes.” TÜV SÜD Automotive has certified that PTC Integrity is fit for
purpose to develop safety-related systems for use in ISO 26262 and IEC 61508-compliant development processes.
MOST® enters the mass market for automotive infotainment and ADAS First MOST150 Intelligent Network Interface Controller supports USB 2.0 and coaxial physical layer
MOST technology is the de-facto standard in the automotive industry for infotainment and Advanced Driver Assistance System (ADAS) networks. Now, Microchip’s new OS81118 simplifies in-car mobile and WiFi® connectivity over MOST150.
Already used as the backbone for in-car infotainment in more than 140 car models worldwide, MOST’s synchronous network technology delivers cost- and bandwidth-efficiency for transmitting audio, video, data and control information between any attached devices. Its ultra-low latency, high quality of service and minimum hardware is available across three speed grades of 25, 50 and 150 Mbits/s, with support for optical and electrical physical layer.
With 150 Mbits/s bandwidth and an automotive-grade physical layer for Ethernet protocols the highest speed grade, MOST150, now introduces support for in-car internet, email, social networking and connection to the cloud.
To simplify the development of this new level of in-car infotainment, Microchip has released the latest member of its MOST150 INIC family: The OS81118 features on-chip USB 2.0 high- speed device port for easy USB connection to standard Wi-Fi/3G/ LTE modules and to multi-core consumer Systems-on-a-Chip. Additionally the integrated coax transceiver offers a low cost electrical physical layer.
For more information visit:
www.microchip.com/get/euOS81118
START BUILDING YOUR MOST APPLICATION TODAY!
Development tools:
www.microchip.com/MOST-dev-tools
MOST25 MOST150 MOST50 Physical+ Interface Boards OS81xxx
The Microchip name and logo, and MediaLB are registered trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. TrueAuto is a trademark of Microchip Technology Inc. in the U.S.A. and other countries. All other trademarks mentioned herein are the property of their respective companies. ©2013 Microchip Technology Inc. All rights reserved. DS00001527A. ME1067Eng05.13
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