2010 Prius 92g/km and low emissions 89g/km version!

maybe the higher power will be the 92 and the lower power will be the 89 one?
so you can get a speeding prius of a slow prius
for people that want more power and don't think the current prius got that?

or maybe its the prius with and without the solar panel?

 

if numbers are true, probably with and without solar panel... which is in any case, very hard to test, since a lot of that solar panel thing is usable when car gets really hot in summer... which cant be shown in testing, which will show only benefit of its powering of 12v battery during driving...

 

thing is, CO2 measurments are really cool because they show bigger difference in numbers than just l/100km or (even worse) mpg. 10% better means 10.4g less in CO2 for Prius which seems a lot... 10% better means only 0.43l better in l/100km. So 89g of CO2 means car would spend 0.65l of fuel less, meaning 3.6l/100km. Difference in 3g between 92 and 89 could mean solar panels, could even mean different tires since thats only like 0.1l/100km difference in consumption.

I dont think it would be different engine (as in 2.0l) because difference between new 1.8l and 2.0l Valvematic is 9g/km (in new Avensis)...

Also, in new Avensis, new Valvematics 1.6 and 1.8 with 132hp and 147hp have both 6.5l consumption and only 2g/km CO2 difference (152 vs 154). 1.8l definetly seems like an sweet spot.

Also, compared to old ZZ series, new 1.6l and 1.8l Valvematics have 22hp/25hp more are faster to 100kmh by 1.6s/0.9s at 10.4/9.3, while having 0.7l smaller consumption in what is probably an heavier car. All that without turbocharging or other expensive technologies. And old ZZ was never an bad engine either. Thats what I call serious progress.

Also, at 10.4 to 100kmh, 1.6l version becomes viable even in Avensis for European cities although it will be probably just base version with base equipment, like before.

 

we might be, but toyota already said they have 1.8l in it . I dont think 1ZR would be 100hp, i think 2ZR is around that number... didnt they say around 100hp for petrol engine and 60hp for electric power?

 

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I've read that the low CO2 version has an electric coolant pump.
The other one still has a belt-driven coolant pump.

 

is there stil anything belt-driven on the current prius?

 

The emission can be lowered by a more efficient catalytic converter, not necessary by more efficient ICE.

For example, the emission can be scrubbed like the VW TDI using Bluetec. So estimating the FE by emission numbers is speculative.

 

You can change NOx, and maybe CO, but CO2 is simply the cost of doing business. You take carbon in whatever form, you burn (oxidize) it to get the energy out, and the primary product is CO2. The TDI does nothing to change CO2, just mostly reduces PM and NOx.

Rob

 

catgic,

The solar numbers are estimated using:
PVWATTS - A Performance Calculator for Grid-Connected PV Systems

200W is the assumed DC rated capacity, as you correctly stated. My inputs are 0 deg elevation (flat), and 90% efficiency (I believe typical for straight battery charging applications). The estimated output powers are based on two cities, may have been Phoenix and San Fran? I'd have to re-run it to be sure. BTW, you have to run at 1kW and extrapolate (pretty easy since its linear) since pvwatts will not take any dc rated system less than 1kW.

Rob

 

It seems to me your example is contrary to your viewpoint. The Corolla weighs 11% more than the Yaris. Moving 11% more weight at a given speed requires 11% more power. Producing 11% more power with the same amount of fuel consumed requires 11% better efficiency. Since the Corolla is larger, and most likely has a greater CdA, the real efficiency gain is probably even greater.

Rob

 

there is also a 3e elec pump for cooling the inverter and mg1 and mg2 ( lower part radiotor used )

 

The site below has Cd and CdA for the Corolla and Yaris:
http://www.tercelreference.com/Downloads/CdA_List.htm

They put the '02-'08 Corolla at 6.6, and the '09 at 6.52. The '07 Yaris they have at 6.13. The current Prius they have at 5.83.

Based on the info here, the average speed of the EPA highway driving cycle is ~48mph.
CarNut's Garage - EPA Fuel Mileage Estimates
Emission Test Cycles: EPA Highway Fuel Economy Cycle

Based on the numbers here:
Prius Palm Mileage Simulator

the Prius' energy expenditure is about 35% devoted to overcoming wind resistance at 48mph. Since drag varies linearly with CdA, the Yaris should experience about 5% more air resistance than the Prius, or roughly 2% more drag overall. The Corolla should experience 11.8% more air resistance, or about 4% more overall drag.

Adding that to the 11% weight difference above, the 1.8L Corolla would have to be 13% more efficient than the 1.5L Yaris to get the same mpg on the EPA highway test. I fully acknowledge that this could be in the noise, but it also says Toyota's claimed 10-15% improvement for the '10 w/1.8L seems perfectly plausible even for highway EPA.

Rob