Discover how our cutting-edge solutions redefine automotive connectivity, enhancing your driving experience like never before.
Cars are not solely about driving anymore – electronic devices such as anti-collision cameras, DVD players, and navigation systems make the difference. Like infotainment systems, Automotive Driver Assistance Systems (ADAS) are becoming an integral part of the vehicle, with interfaces to many different clusters of electric/electronic systems.
The bandwidth of fiber optics (as compared to traditional automotive cables) and its ease of use, coupled with its robustness against vibrations and external noise sources as well as electromagnetic compatibility (EMC) make it ideal for in-vehicle embedded multimedia networks.
KD automotive applications incorporate: battery management, safe communications backbones, smart antenna modules, infotainment, lower speed EMC-tight links, autonomous driving safety redundancy, and ADAS sensor interconnection.
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Fusce sit amet auctor ipsum. In malesuada nisi nec dui porta laoreet. Curabitur malesuada pulvinar pharetra. Phasellus elementum nibh vitae elit tincidunt lacinia. Suspendisse faucibus faucibus fringilla.
Sed et massa quis mauris rhoncus rhoncus sit amet imperdiet est. Vivamus posuere, lectus nec rutrum interdum, elit lectus condimentum risus, quis pharetra libero odio eget dolor.
Curabitur molestie nisl eu odio fringilla, ac euismod erat pharetra. Fusce at ipsum id odio venenatis laoreet sit amet in orci. Vivamus ac consectetur metus. Vivamus non viverra neque.
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Fusce sit amet auctor ipsum. In malesuada nisi nec dui porta laoreet. Curabitur malesuada pulvinar pharetra. Phasellus elementum nibh vitae elit tincidunt lacinia. Suspendisse faucibus faucibus fringilla.
Sed et massa quis mauris rhoncus rhoncus sit amet imperdiet est. Vivamus posuere, lectus nec rutrum interdum, elit lectus condimentum risus, quis pharetra libero odio eget dolor.
Curabitur molestie nisl eu odio fringilla, ac euismod erat pharetra. Fusce at ipsum id odio venenatis laoreet sit amet in orci. Vivamus ac consectetur metus. Vivamus non viverra neque.
Electromagnetic noise is a major issue in any electrical power train, both in full electrical or hybrid architectures. Consequently, due to the presence of hazardous high voltage (above 25 Vac or 60 Vdc), galvanic isolation is necessary between the domains of a battery management system and also between the primary and secondary systems of both ac-dc and dc-dc.
The control of all the subsystems requires a communication bus that transports the control, actuation and sensor signals among the different components. Since it has to be immune to the electromagnetic noise and, at the same time, comply with the mechanical, temperature, and weight constraints of the vehicle, optical connections with POF are ideal.
For details, please see the white paper:
All major carmakers agree on the advantages of grouping different zones within the vehicle. With this paradigm, the car will be the result of a number of different zones working and sharing information in a hierarchical manner. Examples of zones are the front right and left and rear right and left. Within each zone, connectivity will be chosen to perform the needed functions and meet the zone requirements.
Typical peripheral zones will be based on 100 Mb/s Ethernet, Flex-Ray, CAN, or LIN. Going up one level in the network hierarchy, a broadband network will be needed to interconnect all the peripheral zones in a reliable way.
Optical Ethernet is the best choice, delivering the needed 1 Gb/s today and multi-gigabit in the future.
An Integrated Smart Antenna (ISA) Module consists of several antennas for signal reception, an Antenna Hub, and an Ethernet connection to the consumers of the antenna signals such as a radio device. If each of the several antennas in a car is routed to its respective ECU with its own cable, soon the complexity will be unacceptable.
The Antenna Hub routes all signals from each antenna to an Ethernet network connected to all receptors of the signals. Gigabit Ethernet over POF (GEPOF) is ideally suited for the Ethernet connection due to its natural EMC-free property.
The EMC problem-free link also allows simple re-positioning of the antenna module.
Infotainment systems in the car are getting more and more sophisticated with screen resolutions constantly rising. This results in higher data rates to be transmitted through the network backbone. Multi-gigabit connections without EMC issues are needed.
The automotive industry is currently seeking technologies to enable 10 Gb/s communications. Optical Multi-Gigabit Ethernet in the car is on the verge of standardization and implementation.
The possibility of extending the usage of in-line connectors is a key feature for certain car and bus makers which rely on separated wire harness sections to build up the complete car network.
The native EMC robustness of Optical Fiber ensures a “hassle-free” implementation with plenty of margin for other surrounding systems, which either radiate or are susceptible to electromagnetic noise.
Thanks to KDPOF PHY´s rich link power margin it is possible to operate the system in the lower 100 Mb/s speed and “use” the extra margin to accommodate up to nine in-line connectors.
For safety-related functions such as the data network backbone, autonomous driving requires redundant systems. The objective of this redundancy is to increase safety and avoid the autonomous car being locked if the backbone is disabled in some way. The second backbone may be optical as well, or even copper-based.
Reliability analysis shows the highest reliability lies in having a technology redundancy like optical and copper. Consequently, more and more OEMs are now considering Plastic Optical Fiber (POF).
Like infotainment systems, Automotive Driver Assistance Systems (ADAS) are becoming an integral part of the vehicle with interfaces to many different clusters of electric/electronic systems in the car.
The latest studies predict a growth up to 400 million ports per year throughout the year 2019. In 2019, the automotive industry produced app. 117 million vehicles. As in the human body, numerous functions in ADAS must be implemented and networked: sensors – for example radar, cameras or ultra-sonic – processing units and actuators like steering, brakes, ESP and airbag.
Taking into account the complexity of the use cases and the different vehicle areas that have to exchange information, it is obvious that an adequate network infrastructure is of essential importance for the efficiency of the system. Optical gigabit Ethernet fulfils these conflicting demands.
KDPOF technology enables a new generation of low-cost, reliable Multi-Gigabit optical data links for automobile networks. The automotive products within the KD1000 family are fully integrated PHYs that offer Ethernet connectivity over automotive-qualified, standard optical fiber with the choice of either standard xGMII Ethernet or video interfaces. KDPOF launched the latest generation of POF-based links in 2016 and is in production for several OEMs.
Optical Multi-Gigabit Ethernet in the car is on the verge of standardization and implementation. With the approval of the IEEE 802.3 working group, a team of individuals affiliated with more than 15 key carmakers and components suppliers, including KDPOF, has started the standardization of an IEEE 802.3 Automotive Optical Multi-Gigabit Standard with strong support from the industry. The first prototypes are projected by the end of 2022.
KDPOF offers a full automotive solution in partnership with Yazaki that provides:
All rights reserved © 2024 – Knowledge Development For Pof S.L.
