Two years with the Hymotion conversion and still going strong

Year two of my ownership was back in August but I'm just now getting around to posting about it. So far I have not had any problems and the battery is still performing great. I think I have learned as much as possible about how to exploit the battery for best use so there is not much new in that area. This year I managed to pull off 784MPG in the MPG challenge at Hybridfest. Thanks to Linda for a perfect route for the challenge.

Here are some stats.

Total PHEV miles: 18,685.6
Total PHEV gas used: 131.39 gallons
Total PHEV gas cost: $334.24
Total kWh used: 2737.8
Total kWh cost: $219.02
Total fuel cost: $553.26
Average MPG: 142.2
Average MPGe: 86.9
Average cost per mile: 3.0 cents per mile

Best Tank
3536 Miles
314 MPG
115.43 MPGe

Approximately 550-600 charge/discharge cycles total.


I have also done a distance run on all EV just to compare to previous years.
On this run I have brand new tires. Michelin Energy Savers A/S. Only a few miles were on the tires before I started the test. Also on my test route the city decided to fix the part of the road I got pulled over on because I was dodging pot holes. This was causing a traffic jam. I decided to take a slightly different route but with the same elevation changes so everything should be pretty close to previous runs.

This years results
Distance – 24.4
Ah used – 14.34
Amount of Electricity to fully charge – 4683.4Wh
Wh per mile – 192

I think if you take into account the traffic jam, slightly different route, and new tires I think the results are pretty close to last years. So it looks like the battery is holding up well.


2009 results

Course same as last year.
Temp was colder.
This time it was at night with my lights on and PC running.
I did not have any problems with the SOC getting too low. I'm guessing it was because I was limiting my amp draw to 40A for acceleration and 20A to keep speed.
Speed was around 30MPH

Distance - 26.6 miles
Can-View reported 14.9Ah used
Amount of Electricity to fully charge – 4734.2Wh
Wh per mile - 178Wh


2008 results
Actual Distance – 33 miles
Estimated Distance – 25 good easy miles. 33 miles if you work at it.
Fuel used - Technically 0
Estimated Pack Size – 18.5Ah
Amount of Electricity to fully charge – 5295.7Wh
Wh per mile - ~160Wh

 

I'm taking a wild guess that the scan gauge was used and both drivers ran the course all electric or damn close to all electric. I know because the scan gauge has a problem with all electric driving. Ron from scan gauge said he was thinking about adding a kWh meter or AMP gauge to the scan gauge for next year. Hopefully he will have that implemented soon because thats one gauge us PHEV owners really need to have.

Not anymore. If you want my raw data logs of the first year with the kit they are available here. http://priuschat.com/forums/gen-ii-prius-fuel-economy/47849-2006-prius-data-analysis.html

You will have to do all the parsing and data mining yourself.

 

I should correct myself. When I said the SG needs and AMP gauge I was talking about an Ah count down like the CAN-View has. That way we know how many Ah are remaining in the pack. So Actually all we need is a kWh meter or an Ah count down meter.

I really would like to see the MPG competition for next year reworked some how to include electricity use. That way we can compare who is actually the better driver. I think it would be more fun that way. When I was doing the MPG challenge I was just doing it to see what I could do with the Hymotion system. I was able to calculate my MPGe since I brought my own kill-a-watt meter with me to measure electricity use.