ZombieVerter Timing Diagrams

Timing Diagrams

Shown below are some simple ZombieVerter scenarios as timing diagrams.

ZombieVerter successfully moving from OFF to RUN mode

ZombieVerter successfully moving from RUN to OFF mode

Timing diagram showing ZombieVerter successfully moving from RUN to OFF mode.

ZombieVerter failing to Precharge

Diagram Source

ZombieVerter successfully moving from OFF to RUN mode

<plantuml> @startuml

scale 100 as 200 pixels hide time-axis skinparam backgroundColor #FFFFFF

<style> timingDiagram {

 backgroundColor #white
 constraintArrow {
   LineThickness 2
   LineColor #lightgray
 }
 .analog {
   LineThickness 3
 }
 .blue {
   LineColor blue
   LineThickness 5
 }

} </style>

title "ZombieVerter Timing Diagram - RUN -> Start (not to scale)" footer 2026-03 caption "\nThis diagram illustrates the timing of ZombieVerter input and output signals leading to a normal start sequence.\nThis example shows UDC rising and reaching UDCmin within the precharge timeout period, allowing the system to enter MOD_RUN successfully.\n"

rectangle "OpMode" as OM concise "Torque Demand" as TQ binary "T15" as T15 binary "Throttle Position" as THROTTLE binary "Start" as START binary "Contactor Power" as CP binary "NegativeCON" as NEG binary "PositiveCON" as POS binary "PrechargeCON" as PCH binary "Inverter Power" as INV analog "UDC Voltage" as UDC <<analog>>

OM is MOD_OFF #LightGray T15 is {low,high} START is low CP is high INV is low NEG is low POS is low PCH is low TQ is ZERO THROTTLE is {low,high}

@50 as :precharge

' Start @0 UDC is 0 'OM is MOD_OFF

@10 T15 is high

@:precharge-20 THROTTLE is low

@:precharge-10 START is high START --[#gray]> OM@+10 T15 --[#gray]> OM@+10

@:precharge OM is MOD_PRECHARGE #LightBlue NEG is high PCH@50 <-[#blue]> @+250 : {250ms}

@:precharge+10 START is low THROTTLE is {low,high}

@300 PCH is high UDC is 0 PCH --[#gray]> UDC

highlight 300 to 395 #Lavender;line:DimGrey : Variable Pre-Charge Time

@395 UDC is 250 UDC --[#gray]> OM@+5

@400 OM is MOD_RUN #PaleGreen TQ is "~THROTTLE" INV@400 <-[#blue]> @+250 : {250ms} POS@400 <-[#blue]> @+250 : {250ms}

@+250 INV is high POS is high

@+100 INV is high THROTTLE is {low,high} @enduml </plantuml>