Operation CHARM: Car repair manuals for everyone.

Part 2








L110F HYBRID VEHICLE CONTROL: HYBRID CONTROL SYSTEM: TERMINALS OF ECU

TERMINALS OF ECU (Continued)

2. Oscilloscope waveforms
HINT: Oscilloscope waveform samples are provided here for informational purposes. Noise and fluttering waveforms have been omitted.





(a) Waveform 1 (motor resolver signal)





HINT: Pulse cycle A becomes shorter as the rotor speed increases.





(b) Waveform 2 (MG ECU communication request signal)










(c) Waveform 3 (communication signal from hybrid vehicle control ECU to MG ECU)





HINT: The waveform will vary depending on the content of the digital communication (digital signal).





(d) Waveform 4 (GI signal)





HINT: The pulse cycle becomes shorter as the engine speed increases.





(e) Waveform 5 (generator resolver signal)





HINT: Pulse cycle A becomes shorter as the rotor speed increases.





(f) Waveform 6 (communication signal from MG ECU to hybrid vehicle control ECU)





HINT: The waveform will vary depending on the content of the digital communication (digital signal).