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Prius PHEV Schematics

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This is where you will find schematics, PCB layout, and parts lists for various Prius PHEV conversions.

Original CalCars Method

Further development of the PriusPlus or Prius PHEV#Original CalCars Method has been postponed to persue the Prius PHEV#Hybrid-Pack Method so the original schematics can be found at Prius PHEV Schematics-CalCars

Hybrid-Pack Method

There is no longer a need for the Battery Tap Emulator.

The HV interface with the original battery is made after the HAL sensor.

View with fixed-width fonts
                       |======[? (-) for Genset Mode ?]
                       |
=(-)=[=#=OEM_Contactor=#=]===[|]==#========(-)
                             HAL  |      [_OEM_Battery_]
To HSD                    SENSOR  |    |===(+)
                                  |    | 
=(+)=[=#=OEM_Contactor=#=]========|====| 
                       |          |      
                       |====|     |      
                            |     |      
(     # interconnect )     (+)   (-)     
( = & | 6 guage wire )  [_PHEV_Battery_]

Contactor Based

No new Schematics for these methods yet...


PFC Based

No new Schematics for these methods yet, Only ASCII Art...

Manual Anderson Quick Mode Change.

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Manual Anderson Quick Mode Change.
( 6 red, 6 black )
 _______________ _ _____________________               
 In   PFC AC(+) \ / (+) 110/220AC   CHG |              
 _____PFC_AC(-)_/_\_(-)____________ CHG______          
 Out  PFC DC(+) \ / (+) PbA (PHEV)  CHG PHEV |         
 _____PFC_DC(-)_/_\_(-)________________ PHEV_____      
                  / (+) NiMH (OEM)      PHEV RGN |     
 _ _ _ _ _ _ _ _ _\_(-)____________ _ _ _____RGN |     
                  / (+) PbA (PHEV)           RGN |     
 _ _ _ _ _ _ _ _ _\_(-)____________ _ _ _ _ _____|     

                 _ ________________                    
  "Special Mode"  / (+) HSD (? HAL sensor ?)           
  Wayland at the _\_(-)____________                    
  track charging  / (+) DC Output (! NEDRA !)          
  Genset Mode ?? _\_(-)____________                    
--Rjf 00:40, 26 May 2006

Automatic Charge - PHEV Drive Mode Change

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Automatic Charge - PHEV Drive Mode Change
Pair of DPDT or 4PDT, and SPST (40+ Amps, 12v coils)
  (+)[Grid](-)      (+)[PbA](-)        (-)[NiMH](+)[NiMH](-)Regen Mode?
   |        |        |       |          |        |
   |        |        |       |          |        |
   |   |====|========#=======|==========|====|   |
   |   |    |         _______|__        |    |   |
   |   |    |   |=======# ,, #======|   |    |   |
 __|___|____|___|__   !  ====  !  __|___|____|___|__
 ! #   #    #   # !   !  %%%%  !  ! #   #    #   # !
 !  \ , %%%% \ ,  !   !  coil  !  !  \ , %%%% \ ,  !
 !   \  coil  \   !   !___02___!  !   \  coil  \   !
 !___#___01___#___!               !___#___01___#___!
     |        |                       |        |
     |(+)  (-)|                       |(-)  (+)|
    [PFC Input]                      [PFC Output]
 01 open   = Grid -> PbA, Charge if AC is present. - Add drive interlock for safety
 01 closed = PbA -> NiMH, open  PbA (-)neg input   - Enabled by Vehicle On (Change PFC V setpoint)
 02 closed = PbA -> NiMH, close PbA (-)neg input   - Enabled by CAN-View Relay 4 (Stock/PHEV Mode)
Can we get a four poll tripple throw 40A, 60A, or 120A Contactor or Drum Switch?
--Rjf 02:43, 31 May 2006 (CDT)

Enhanced Regen

Regen may need to transfer power through the OEM HAL sensor in order to:

  • Avoid Negative State Of Charge Drift which may not work like +Drift.
  • Allow current to be counted instantaneously and thus recover from or avoid CCL.
  • Allow for the use of the Prius as a DC Genset if PFC sources NiMH pack.

Potential Enhanced Regen methods

  • Use the PFC as is, switch Input/Output and change voltage setpoint.
    • Modify the PFC so it can move 2x amps in DC modes only.
    • Use a PFC power stage.. so we can stuff 150 amps in any direction.
  • Use a Honking Big diode and a properly sized PbA Pack.
  • Use a contactor and a diode and a properly sized PbA Pack.