TY - GEN
T1 - A micro-processor based adaptive ignition control system
AU - Zhang, Fujun
AU - Ge, Yunshan
AU - Huang, Ying
AU - Liu, Fushui
AU - Sun, Yiebao
AU - Wu, Sijin
N1 - Publisher Copyright:
© 1999 IEEE.
PY - 1999
Y1 - 1999
N2 - An adaptive ignition control system can adjust ignition angle automatically, so the power of the SI engine is improved while preventing it from knock. This paper describes an ignition control system, whose core is a micro-processor (80C552). The inputs include intake manifold pressure sensor, throttle position sensor, water temperature sensor, crankshaft position (speed) sensor, synchronization sensor and knock sensor. The software of the system includes main flow program and several interruption programs. The article describes how the knock signal acquisition, knock condition judgment, ignition-signal, etc. are controlled by the software. The peak-value of the knock signal is recorded in a circuit during one cycle, and accordingly this value of the knock is detected. A new two-parameter ignition angle adjusting method is used, which is according to the peak-value of knock signal during one cycle and the mean value of several cycle peak-values. This method effectively resolved the contrast of the high response and small cycle fluctuation of ignition angle control. The experiments on 368Q engine shows that the design of the system hard-and-software is feasible and the engine is prevented from knock effectively, the torque of the engine is improved.
AB - An adaptive ignition control system can adjust ignition angle automatically, so the power of the SI engine is improved while preventing it from knock. This paper describes an ignition control system, whose core is a micro-processor (80C552). The inputs include intake manifold pressure sensor, throttle position sensor, water temperature sensor, crankshaft position (speed) sensor, synchronization sensor and knock sensor. The software of the system includes main flow program and several interruption programs. The article describes how the knock signal acquisition, knock condition judgment, ignition-signal, etc. are controlled by the software. The peak-value of the knock signal is recorded in a circuit during one cycle, and accordingly this value of the knock is detected. A new two-parameter ignition angle adjusting method is used, which is according to the peak-value of knock signal during one cycle and the mean value of several cycle peak-values. This method effectively resolved the contrast of the high response and small cycle fluctuation of ignition angle control. The experiments on 368Q engine shows that the design of the system hard-and-software is feasible and the engine is prevented from knock effectively, the torque of the engine is improved.
UR - http://www.scopus.com/inward/record.url?scp=84855377855&partnerID=8YFLogxK
U2 - 10.1109/IVEC.1999.830615
DO - 10.1109/IVEC.1999.830615
M3 - Conference contribution
AN - SCOPUS:84855377855
T3 - Proceedings of the IEEE International Vehicle Electronics Conference, IVEC 1999
SP - 34
EP - 37
BT - Proceedings of the IEEE International Vehicle Electronics Conference, IVEC 1999
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 1999 IEEE International Vehicle Electronics Conference, IVEC 1999
Y2 - 6 September 1999 through 9 September 1999
ER -
