Examining my Commute with DashCommand

Now that I have an iPhone 4S (thanks Mom!), I finally have a device that can handle the processing and data transfer needs of DashCommand.

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DashCommand is a vehicle diagnostic and data visualization app from Palmer Performance Engineering.  Basically, you can plug your phone into the OBD-II port under your steering wheel (with a cable or wireless transmitter, sold separately), and see every piece of information about your car’s performance.

 

Some of the parameters that can be viewed are:

  • Speed
  • RPM
  • Power
  • Torque
  • Remaining Fuel
  • Fuel Economy
  • Coolant temperature
  • Pitch and roll
  • G forces
  • Check Engine codes

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It also takes averages over trips, each day, and between fillups.  I decided to use a trip average to record the data for my commute from work to home.  Here’s the data for my one way, door-to-door  trip:

 

 

Average Fuel Consumption

23.5 mpg

 

Distance

36.5 mi

 

Fuel consumed

1.2 gal

 

Average CO2 Emission Rate

13.2 oz/mi

 

Total CO2 Emissions

23.8 lbs

 

Elapsed Time

56 min

 

Drive Time

41 min

Meaning I was stopped at red lights/in traffic for 15 minutes

Average fuel flow

1.3 gal/hr

 

Max fuel flow

4.7 gal/hr

 

Average Speed (excluding idle)

42 mph

 

Average Speed (including idle)

35 mph

 

Max Speed

72 mph

 

Average Engine Speed

1535 rpm

 

Max Engine Speed

3155 rpm

 

Max Acceleration

0.4 g

 

Max Braking

0.5 g

 

Max Engine Power

199 HP

 

Max Torque

278 ft/lbs

 

Distance in Neutral

22.6%

I think this means the amount of time I’m stopped or coasting

Time in Neutral

47.3%

 

Distance in 1st Gear

0.7%

 

Time in 1st Gear

1.4%

 

Distance in 2nd Gear

3.6%

 

Time in 2nd Gear

4.7%

 

Distance in 3rd Gear

9.8%

 

Time in 3rd Gear

8.9%

 

Distance in 4th Gear

63%

 

Time in 4th Gear

37.5 %

 

Distance in 5th Gear

0.3%

 

Time in 5th Gear

0.2%

 

Distance in Wrong Gear

77%

I don’t know how this cold be possible, since my car is an automatic. Does anyone know?

Time in Wrong Gear

52.5%

 

 

 

My dashboards:

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My Route:

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(Note the color changes based on my speed)

 

At some point I’ll post some data from a performance run or a quarter-mile, if I can find a safe place to do it.

 

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