Hybrid Control System

HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM: TERMINALS OF ECU

























NOTICE:
Do not measure voltage or waveform directly at the sealed side of the hybrid vehicle control ECU connectors. Doing so may damage the connectors because these connectors are waterproof.

1. Oscilloscope waveforms

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

(a) Waveform 1 (A/C communication signal)









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

(b) Waveform 2 (Camshaft and crankshaft position sensor)









HINT
* Pulse amplitude becomes higher as the engine speed increases.
* Pulse cycle becomes shorter as the engine speed increases.

(c) Waveform 3 (READY signal)









(d) Waveform 4 (GO signal)









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

(e) Waveform 5 (CAN communication signal)









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

(f) Waveform 6 (CAN communication signal)









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

(g) Waveform 7 (Vehicle speed signal)









HINT
The higher the vehicle speed, the shorter the cycle.

(h) Waveform 8 (Oil pump motor signal)









(i) Waveform 9 (HV battery blower fan operation signal)









(j) Waveform 10 (Immobilizer communication signal)









(k) Waveform 11 (HV water pump signal)









(l) Waveform 12 (System main relay operation signal)









(m) Waveform 13 (VLO signal)









HINT
The cycle will vary depending on the specified voltage of the hybrid vehicle converter (DC/DC converter).

(n) Waveform 14 (P position control signal, P position signal)









(o) Waveform 15 (Airbag collision detection signal)









(p) Waveform 16 (Communication signal from MG ECU to hybrid vehicle control ECU)









HINT
The waveform will vary depending on the content of the digital communication.

(q) Waveform 17 (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).

(r) Waveform 18 (Communication signal from battery smart unit to hybrid vehicle control ECU)









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

(s) Waveform 19 (MG communication clock signal)









(t) Waveform 20 (MG communication request signal)

















NOTICE:
Do not measure voltage or waveform directly at the sealed side of the inverter with converter assembly connectors. Doing so may damage the connectors because these connectors are waterproof.

2. Oscilloscope waveforms

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

(a) Waveform 1 (GI signal)









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

(b) Waveform 2 (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).

(c) Waveform 3 (MG ECU communication request signal)









(d) Waveform 4 (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).

(e) Waveform 5 (MG communication clock signal)









(f) Waveform 6 (Generator resolver signal)









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

(g) Waveform 7 (Motor resolver signal)









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