KP464 provides additional diagnostic functions such as manifold air pressure monitoring.
KP466, easy design of pneumatic seat systems… continuous pressure status monitoring

Infineon Technologies (hereinafter Infineon) has launched a barometric pressure sensor specialized for engine control management and seat comfort functions.

Infineon announced on the 4th that it is launching two new XENSIV™ barometric pressure (BAP) sensors, the KP464 and KP466, for automotive applications.

Infineon stated that the KP464 is designed for engine control management, and the KP466 is designed for seat comfort functions.

The KP464 pressure sensor measures atmospheric pressure that varies depending on altitude and weather conditions.

The engine management system uses sensor measurement data to calculate air density and ensure an optimal air-fuel mixture, which is a key function for improving fuel efficiency and reducing power consumption, while also minimizing CO2 and other pollutant emissions by reducing energy loss.

Infineon's KP464 barometric pressure sensor provides additional diagnostic functions, such as manifold air pressure monitoring, along with density measurement, and enhances device productivity with low power consumption and a miniaturized package.

Seat manufacturers can design innovative pneumatic seat systems that offer distinct technical advantages by using Infineon's next-generation KP466 BAP sensor.

For example, the multi-contour seat function is for the occupantThe seat adjusts to the user's body through air cells integrated into the lumbar support and seat cushion, allowing the seat contour to be adjusted to suit individual needs.

The Driving Dynamics feature also ensures optimal stability for the occupant during cornering by automatically adjusting the seat's side bolsters according to driving conditions.

This solution features a much lower power consumption and a compact 5-hole housing, and the system continuously monitors the pressure status and adjusts the pressure of the cushion according to current needs.

KP464 and KP466 are high-performance, high-precision, ultra-compact digital absolute pressure sensors based on the capacitive measurement principle.

Both sensors feature micro-machined surfaces and monolithic integrated signal conditioning circuits that convert physical pressure into 10-bit, 12-bit, and 14-bit digital values and transmit information through an SPI interface.

In addition, since the two sensors can be integrated in a daisy-chain manner, the number of connection pins on the communication microcontroller can be minimized regardless of the number of pressure sensors.

A temperature sensor is embedded in the chip and transmits 10-bit, 12-bit, and 14-bit temperature information through the SPI interface according to the received SPI command.

It features a special power-down mode that can reduce sensor power consumption, and integrated diagnostic functions capable of testing both the sensor cell and the signal path, which can also enhance device reliability.