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Engine management and pneumatic seat systems: Infineon launches two XENSIV™ barometric air pressure sensors

Infineon Technologies AG (FSE: IFX / OTCQX: IFNNY) introduces two new XENSIV™ barometric air pressure (BAP) sensors: the KP464 and KP466, both targeted at automotive applications. While the KP464 is primarily designed for engine control management, the KP466 BAP sensor is intended for seat comfort functions.

KP464 enables fuel efficiency and reduces power consumption

The KP464 BAP sensor measures atmospheric pressure, which depends on altitude and weather conditions. The engine management system uses the sensor’s measurement data to calculate the air density and ensures the optimum air-fuel mixture. This is the key function for improving fuel efficiency and reducing power consumption. With the reduced energy losses emissions of CO 2 and other pollutants can be minimized. The KP464 BAP sensor from Infineon combines density measurement with additional diagnostics, such as manifold air pressure monitoring. Lower power consumption and additional package miniaturization increase device productivity.

KP466 allows for more comfort and technical advantages

With the next generation of the KP466 BAP sensor, Infineon enables seat manufacturers to realize innovative pneumatic seat systems with many additional functions that are particularly comfortable and offer clear technical advantages. For example, the multi-contour seat function allows vehicle occupants to adapt the contour of the seat to their individual needs. Air cells integrated into the lumbar support and seat cushion allow the seat to adapt to the body. Massage functions further enhance the passenger comfort on long journeys by alternately inflating and deflating the air cells. The driving dynamics function automatically adjusts the seat’s side bolsters to the current driving situation, ensuring optimum stability for occupants, even when cornering.

The optimized solution consumes significantly less power and features a miniaturized five-hole housing. The system constantly monitors the pressure status and adjusts the pressure in the cushions according to the current requirements. It does this by using multiple absolute pressure sensors to monitor pressure throughout the system. The Infineon sensors are SPI enabled, allowing the system to communicate efficiently.

Technical features of the KP464 and KP466 sensors

Both the KP464 and KP466 sensors are high-performance, high-precision, miniaturized digital absolute pressure sensors based on the capacitive measurement principle. The sensors are qualified to the AEC-Q103-002 standard to meet automotive industry requirements. As a result, the devices reduce the effort and risk of errors during module and system qualification. They are micromachined on the surface and feature a monolithic integrated signal conditioning circuit. Both devices convert a physical pressure into a 10-, 12- or 14-bit digital value and transmit the information via the SPI interface.

In addition, both sensors can be integrated in a so-called daisy chain, which minimizes the number of connection pins of the communicating microcontroller with any number of pressure sensors used. This is also possible in combination with other Infineon system components.

Furthermore, a temperature sensor is integrated on the chips. Based on the received SPI command, the 10-, 12- or 14-bit temperature information is also transmitted via the SPI interface. Both devices have a special power-down mode that allows the user to further reduce the power consumption of the sensors. In addition, the sensors integrate a diagnostic function that can be used to test both the sensor cells and the signal path, increasing the reliability of the devices. This diagnosis can be done automatically at sensor start and sensor wake-up or triggered directly via a SPI command.

Availability

The XENSIV barometric air pressure sensors KP464 and KP466 can be ordered now. More information is available at www.infineon.com/bap-sensor-kp464 and www.infineon.com/bap-sensor-kp466.

2023062701 / 27.06.2023 / Electronic-components / Infineon Technologies AG /

Infineon launches SECORA™ Pay Green – the world’s first contactless payment card technology allowing for up to 100% reduction in plastic waste

Infineon and Swoboda cooperate to develop high-performance current sensors for electromobility

New industrial CoolSiC™ MOSFETs 650 V G2 in TOLT and Thin-TOLL package increase system power density
The electronics industry is witnessing a significant shift towards more compact and powerful systems, driven by technological advancements and a growing focus on decarbonization efforts.

Infineon unveils CoolSiC™ MOSFETs 400 V redefining power density and efficiency in AI server power supplies

Infineon presents XENSIV™ TLE49SR angle sensor family with outstanding stray field robustness
Infineon Technologies AG introduces the new XENSIV™ TLE49SR angle sensor family, which combines excellent stray field immunity with high accuracy. The sensors are ideal for applications of safety-critical automotive chassis systems such as electric power steering and vehicle height leveling.

Infineon introduces PSoC™ 4 HVPA-144K microcontroller for automotive battery management systems

Infineon provides FOXESS with power semiconductors to improve efficiency and power density of energy storage applications

Infineon launches next-generation ZVS flyback converter chipset for advanced USB-C PD adapters and chargers
The growing popularity of USB-C power delivery (PD) charging increases the demand for compatible chargers. Users now seek powerful yet compact adapters.

Infineon Lighting Shoe: Infineon develops worldwide unique shoe prototype with adidas that listens to music and reacts to it with lighting effects

Infineon’s single-chip solution for NFC lock applications enables KISS to take self-storage to the next level with new smart lock solution

Infineon introduces new automotive 60 V and 120 V OptiMOS™ 5 in TOLx packages for 24 V-72 V supplied high power ECUs
The electrification of the transportation system is advancing continuously. In addition to passenger cars, 2- and 3-wheelers as well as light vehicles are increasingly being electrified. Therefore, the automotive market for Electronic Control Units (ECUs) powered by 24 V-72 V is expected to keep growing in the coming years.

Infineon presents highly integrated XENSIV™ 60 GHz radar sensor for consumer electronics, IoT applications, and healthcare devices

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