New-Tech Europe Magazine | June 2019

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Sensor+Test trade fair. It addresses applications such as the measurement of manifold air pressure (MAP) in aspirated or turbo (Turbo MAP) diesel and gasoline engines as well as exhaust gas recirculation. The digital sensor covers a pressure range of 10 kPa to 400 kPa, achieves a very high accuracy, and provides fast measurement and communication. The MAP is an important parameter to calculate the air- fuel ratio provided to the engine. Precise measurement helps increase combustion efficiency and thus reduce harmful emissions. In addition, manifold pressure data can be used to compute diagnostics of leakages and malfunctions of the exhaust gas recirculation valve. With an accuracy error of 0,77 percent (full scale span, FSS) over lifetime, XENSIV KP276 products are the most accurate digital Turbo MAP sensors in Infineon’s portfolio. An even more precise (0,5 percent FSS) product version is already planned. Furthermore, this version will be ISO26262 ready, providing all the analyses and documentation necessary for safety-critical applications. XENSIV KP276 sensors integrate the signal processing for an external NTC temperature sensor. This allows to provide both the pressure and the temperature signal on only one digital interface. The devices have a SENT interface with a short frame length of 846 µs and a short NTC start-up time of typically 10 ms. This leads to a faster measurement and transmission of the data compared to previous Infineon products. The sensors come in a robus SMD-8 package and are suitable for the harsh conditions in engine management applications. They are qualified for a temperature range from -40°C to 150°C and protected against aggressive media like iodine and exhaust gas condensate.

TI introduces the first system basis chip with integrated CAN FD controller and transceiver Texas Instruments (TI) (NASDAQ: TXN) introduced an automotive system basis chip that is the industry’s first to integrate a controller and transceiver for Controller Area Network with Flexible Data Rate (CAN FD). Designed to meet the high-bandwidth and data-rate flexibility needs of in-vehicle networks, the TCAN4550-Q1 uses the Serial Peripheral Interface (SPI) bus of almost any microcontroller to implement, with minimal hardware changes, a CAN FD interface or increase the amount of CAN FD bus ports in a system. Previously, designers had to incorporate multiple discrete components into their designs or change microcontrollersentirelywhenupgrading toor expanding CAN FD functionality – an often time-consuming and expensive process. With the TCAN4550-Q1 system basis chip (SBC), designers can maintain their existing microcontroller-based architecture and streamline CAN FD upgrade or expansion in body electronics and lighting, advanced driver assistance systems (ADAS) and automotive gateway designs. For product details, see www.ti.com/TCAN4550-Q1-pr. What is CAN FD? The CAN FD communications protocol builds on the original CAN bus standard (also known as “Classical CAN”) to help ensure that automotive microcontrollers and connected systems can communicate effectively as the variety and speed of data rates throughout in- vehicle networks continue to evolve. With support for data rates up to 5 Mbps and payloads up to 64 bytes, the CAN FD protocol empowers designers to move data faster in their next-generation automotive applications. Reduced bill of materials (BOM) and system costs: Designers can simplify their designs with the high integration of the TCAN4550-Q1 – including integrated ±58-VDC bus fault protection, watchdog timer and fail-safe modes – and its cross-compatibility with the Classical CAN protocol. Key features and benefits of TI’s TCAN4550-Q1

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