Automotive solutions of Schaffner
Keyless locking systems, electronic immobilizers and tire pressure monitoring systemssure monitoring systems
Schaffner solutions for use in modern cars can be found in keyless locking systems (passive entry/passive go), electronic immobilizers and tire pressure monitoring systems (TPMS).
These applications benefit from Schaffner’s broad expertise in electromagnetic fields. Using special antennas in the car, information is exchanged between a microchip in the keyless entry system and the in-car computer. This communication can be used to open door locks automatically, trigger the immobilizer, and even make individual adjustments to the seat position. In the TPMS, an air pressure sensor alerts the car's central computer if there is a drop in pressure in one of the tires. In all these applications, Schaffner antennas guarantee the connection between computer and microchip.
Components for hybrid and electric automotive technology
The Schaffner competence for solving EMC problems is increasingly becoming important in hybrid and electric automotive technology. High performance dc-dc converters lower the potential of the high-voltage batteries to the required level of the vehicle power supply or the electric motors, or step it up again for battery charging. Schaffner components and modules reliably eliminate the electromagnetic interferences generated as a by-product of converter switching.
Schaffner is also the right point of contact for driver and passenger safety concerns because of leakage currents as well as for grid-tied battery charging.
Schaffner´s presence in the vehicle
Battery filter for e-mobility - Compact and high performance EMC filtering
Schaffner Automotive support and inspire green transportation development by engineering best in class and cost effective solutions for electric vehicles.
Power electronics converters and HV battery are the key components for e-mobility development. High integrated power electronics converters generate EMI noise while HV batteries are very sensitive.
Battguard* filters benefits of Schaffner’s years of experience in EMC to protect the on-board battery against EMI, thus increasing its life and reliability. Battguard is a compact, light and cost effective solution to reduce EMI and meet the stringent automotive standards. Battguard is characterized by high attenuation for differential and common mode between 150 kHz-300 MHz.
Battguard is primarily designed for HV batteries. However, they can also be used in other DC applications. Filters with different range of current and performance are available upon request.
* Patent pending