FPT100D Engine Torque Sensor

FPT100D system
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Teledyne LeCroy Test Services (TLTS) has developed a Non-Contact Torque Sensor to address the challenging application of measuring automotive engine torque.

This was accomplished by customizing and instrumenting the Flex Plate or Flywheel which connects the engine crankshaft to the torque converter.

The resulting high quality, dynamic torque signal allows the automotive development engineer to understand the actual engine output before it is damped by the torque converter.

This data can be used to examine engine harmonics or filtered to obtain an average value for engine and transmission development purposes. The FPT100D system can be very helpful in the development and confirmation of ECM torque algorithms.

Many clients are using a unique adaptation of the FPT100D to measure torque paths in hybrid powertrains.

Teledyne Flexplate used by Center for Transportation Research
FPT100 Torque Sensor Flex plate/Flywheel
Torque capacity: Dependent on engine output size, typically ±750 ft-lbs
Calibration range: 0 to FS
Operating temperature range: -40 to +120°C
Environmental concerns: Completely weatherproof
Maximum speed: 7000 RPM (Contact factory for higher speeds)
FPT100D Stationary Electronics
Combined accuracy: 0.5% FS
Calibration: Remote shunt calibration (momentary toggle)
System frequency response: 1000 Hz (-3dB)
Filters: 1000 & 20 Hz selectable
Output signal: 0 ±5 VDC (scaleable)
Input power requirements: 8-32 VDC, 1.6 amp @ 12V
Operating temperature range: 0 to 70°C (32 - 158°F)
Physical size (LxWxH): 9.0" x 4.1" x 3.1"