TDC sensor 428
THE MOST IMPORTANT CRANK ANGLE: TDC – WE MEASURE IT!
When performing thermodynamic calculations on pressure curves
measured in internal combustion engines, the exact determination
of the TDC position is of great importance (e.g. IMEP calculation).
Due to the not ideally rigid construction of the engine, the static
determination of the TDC can lead to uncertainties at calculation.
The capacitive TDC Sensor 428 is a precise measuring instrument
for determination of the TDC of a motored or non-fired cylinder
of internal combustion engines.
A specially developed electronic circuit delivers an analogue signal,
it’s maximum value corresponds to the engine’s TDC position. The
AVL Indicating Systems are able to process this signal in conjunction
with an angle encoder directly. The necessary power for the TDC-sensor
is supplied by means of AVL’s angle encoder.
Your benefits at a glance
• Dynamic determination of the angular TDC
position under motored or non-fired operating
conditions better than ± 0.1 deg. CA
• AVL Indicating Software IndiCom recognizes
the compression TDC and calculates the
TDC symmetry angle.
• Simple installation of the sensor via the
pressure sensor bore, spark bore plug
or injector bore.
• Comparison of the TDC-sensor and the
cylinder pressure signals
4.2 TDC SENSOR 428