A Real-Time Platform for Closed-Loop Control and Crank Ankle based Measurement
A real time platform is designed, implemented and
validated. The platform is going to work as an aid in the
development work of new engines. Data can be acquired under a
crank angle interval of an engine cycle and thereafter treated.
This is going to be helpful when new technologies will be
validated or a non directly measurable variable is will be
controlled in a closed loop. The platform consists of a PC with
three devices, an A/D device, a counter device and a CAN device.
The counter device controls the A/D device with help of treated
crank shaft information. The CAN device can send a calculated
value every cycle.
The platform is adapted to detect SOC on an
HCCI engine. With help of the SOC history the combustion phase is
going to be controlled in a closed loop. An SOC detecting
algorithm developed of Rassweiler and Withrow is implemented. The
algorithm is based on crank angle synchronic sampled pressure
data.
Klas Telborn
2002
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