Hella to produce new line of digital sensors

Automotive lighting and electronic equipment supplier Hella is producing a new line of highly-economical and accurate digital sensors for select vehicles.

The new digital throttle-body position sensor will use a single edge nibble transmission (SENT) protocol. Engineers use the term 'one nibble' to refer to the transmission of four bits of data. In this case, one data-nibble will be transmitted with each pulse.

The SENT protocol was created for the transmission of accurate, high-resolution sensor data to an electronic control unit. SENT permits compact packaging and two signals can be transmitted over a single wire, reducing the need for additional cables and cutting costs.

"Unlike analogue transmissions, where signals can be altered, the SENT protocol allows for a more robust signal transmission,” says Hella. “In addition, Hella's electromagnetic compatibility design makes this sensor insensitive to interference. Thus, shielded or twisted cables are not needed anymore in order to fulfill automotive EMC requirements."

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