I'm seeking detailed engineering specs on the Camry Hybrid drive train.

Ever since buying my TCH, I've been very interested with the inner workings of the HSD system inside. I'm trying to develop some software that simulates the hybrid power train components (primarily the power split device). I've been doing extensive research on the web and these forums and have acquired a lot of information. Unfortunately, I cannot find a place that provides exact technical specifications and am therefore missing some pieces of information. That is why I am seeking the knowledge of other techies on this site.

Here is what I have so far. This will also give you an idea of the detail I am looking for. Items with a "?" before them are unconfirmed specs. Any extra info regarding this subject will be greatly appreciated! Feel free to ask me any questions if necessary.

General

• ?Max Reverse Speed: 25 mph
  ?MG2toMPHConversionConstant: ?? (Prius: 59.14)
  Max EV Mode Speed: 42 mph
  ?Max Output Function: MG1 = 3.6 * ICE - 2.6 * (MG2/2.47)

Transmission

• CompoundPlanetaryGeerRatioK1 : 2.600
  CompoundPlanetaryGeerRatioK2 : 2.478
  FinalDriveRatio : 4.050 (Prius: 4.113)

Engine

• Peak Power: 109.62 kW (147 hp) [129 lbs-ft] @ 6,000 rpm
  Peak Torque: 138 lbs-ft @ 4,400 rpm
  Max RPM: 6,250

MG1

• Peak Power: 72kW (96.55 hp) [36 lbs-ft] @ 14700 rpm
  Peak Torque: 36 lbs-ft @ 14700 rpm
  Min RPM: -14,700
  Max RPM: 14,700
  ?CPU Limited RPM Range: -10,000 to 10,000

MG2

• Peak Power: 105 kW (141 hp) [167 lbs-ft] @ 4,500 rpm
  Peak Torque: 199 lbs-ft @ 0-1,500 rpm
  ?Min RPM: -1,200
  Max RPM: 12,400
  ?CPU Limited RPM Range: -1,200 to 4,500
  
  

Wheels (Tire)

• Tire: P215/60 R16
  Sidewall: 5.1
  Radius: 13.1
  Diameter: 26.2
  Circumf: 82.2
  WheelRotationsPerMile : 771
  RollingResistanceCoefficient : 0.008 kg/kg

Max MPH = (((MG2 RPM / Final Drive) * 60 minutes) / Tire revs per mile)

try this place http://eahart.com/prius/psd/

TCH-43mpg
VW TDI--48
08 LS 600 HL-20
08 LX 470-16

I've seen that Prius site and was actually inspired to do all of this research because of that site. Unfortunately, they only have Prius specs.

Thanks for putting that up, I had not seen it before! Two years on PriusChat and I missed it somehow. You really do learn something new every day.

just a little nit picking as this is a detailed engineering request.

the reverse speed cannot be negative. You cannot have a negative speed.

not that it matters at all just being picky.

Good call about the speed being negative. Being a physics enthusiast, I'm surprised I missed that one. I'll fix the posting. (I am notoriously nit-picky about details as well).

How do we know you're not an Industrial Spy for Nissan ??

I hope he is a spy for nissan, consumers need more choices and business needs more competition to quicken the pace of innovation.

andrewbmoore - Have a look at pages AP-2, EG-3, and especially CH-3 of the "New Car Features (Functions?)" Manual posted to this site. The last of these pages gives gear ratios for the planetary gear sets, and the reduction gears that lead to the differential. These are not the same as the Prius' numbers. [By the way, I can't help wondering whether the numbers for the two planetary gear sets have been interchanged on page CH-3, after viewing the transmission diagrams themselves.]

Stan