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A quick energy consumption stats question

1.5K views 14 replies 7 participants last post by  Salkin  
#1 ·
Other than resetting trip counter every time, or just not turning off the Equinox, is there a way to record the driving stats for entire day/time off charger? i.e. with my Volt it used to keep track of entire energy consumption between full charge.

Now with the Equinox I have a reset of that stat every time I turn it off. I'd like to be able to start my day with 0.0 kWh consumed and 0 miles driven and when I get back home see that I used 20 kWh and drove 10 miles (what can I say, I like driving around with the windows open and the heat on hi, J/K I'm trying to make a point like the one on top of my head).

But instead I get a reading of 16 kWh used and 8 miles driven for my in and out errands and when I turn off and get back in, it's 0 kWh and 0 miles and I have to remember the 16/8 numbers and when I get home and see 4 kWh and 2 miles driven add up those values to get my total kWh and miles driven on 50% battery consumption.

Way too much math for me especially if I make multiple turn offs during my day. It's probably in there somewhere, but I can't find it (much like the magical charge port light that I STILL can't get to work). It's just little things like that that I'd like to know.

Love the EQEV just want to know how much I get between plugging in without paper/pencil or memory or punching data into a phone to keep track of kWh and miles and adding up (I'm curious, just not THAT curious that I want to do math on a regular basis).
 
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#2 ·
I can only tell you what I do. It might make sense to you or not. When I start my day with the car I look at the odometer and I look at the range and I total them. Today’s total was 2,502. I go about my business. When I end my day I look at the odometer and the range and I total them. So this evening, the difference between 2,502 and the new total will tell me how close or how far away from the original range projection my car was. I used to keep an index card in the car and write them down because…old…memory…you get it. But I don’t do the index card anymore. Unless I do a lot of highway driving it typically falls within the +2 / -5 range.
 
#3 ·
So still a manual method. OK. It seems so odd that it has all these stats but not something as simple as that. I guess I could reset one of the trip counters every morning, but that seems a bit silly to do (but there are two, so I could use one for that purpose).

I did that with my Volt to find how many miles I drove on a tank of gas (what can I say, I love seeing how many miles I go between refueling methods).

Luckily I don't go many places besides commuting to work and back home again so my miles wouldn't flucuate much but I'm more interested in kWh used. Like some days I average 2.6 miles per kWh and others I did 3.6 miles per kWh.

Totally minor in the grand scheme of things, but just something I'd like to have readily available.

I'm just a weirdo like that.
 
#4 · (Edited)
The myChevrolet app on my android phone tracks the miles driven and efficiency (mi/kWh) since the last full charge, as well as a lifetime average. So, if you want to see the efficiency since last full charge, there it is under the charge management area. If you want the raw kWh since the last full charge, just compute the formula backwards from the efficiency and miles driven.
 
#9 ·
Where in the trip information does it show the kWh consumption for the trip (from Ready to Off)? I have only seen Distance (miles), Average Efficiency (mi/kWh), and the time (hr:min) under the "Current Trip" information window that gets reset every time the car is power cycled.

It would be very nice to log the actual kWh usage, but I haven't seen that data anywhere.
 
#12 · (Edited)
Where in the trip information does it show the kWh consumption for the trip (from Ready to Off)? I have only seen Distance (miles), Average Efficiency (mi/kWh), and the time (hr:min) under the "Current Trip" information window that gets reset every time the car is power cycled.

It would be very nice to log the actual kWh usage, but I haven't seen that data anywhere.
Per post #1, not on the Equinox trip meters, but on the energy screen it shows energy used since last power on. Unfortunately it resets every time you cycle the car power, so it’s not very handy to use. If you were tracking energy on a trip, and stop at a rest area and turn the car off, OOPS, the data is lost. The Bolt shows energy used since last charge, and it retains the info after power cycles, which is more useful, in my opinion.

A number of Equinox EV software design choices don’t make much sense or aren’t useful to me.
 
#13 ·
Thanks. I just went out to the car and checked it. OK, I found it. It is located in the "Energy Usage" window, under the "Energy Info" section of the Vehicle Status. It displays the kWh usage of HVAC, traction, and regenerative braking. Will have to keep this screen up on the DIC to see if that number matches the Energy Efficiency number (mi/kWh) calculated by the car.

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#14 ·
Thanks. I just went out to the car and checked it. OK, I found it. It is located in the "Energy Usage" window, under the "Energy Info" section of the Vehicle Status. It displays the kWh usage of HVAC, traction, and regenerative braking. Will have to keep this screen up on the DIC to see if that number matches the Energy Efficiency number (mi/kWh) calculated by the car.
I see slight descrepancies between the energy screen mi/kWh, and that shown on the trip meters. Perhaps it’s just rounding of the calculations, but sometime the numbers vary by a tenth, even though both were reset at the same time. It’s weird.
 
#15 · (Edited)
Yes, the number I see on the car display or in the GM App is sometimes a mystery. For a while after I purchased the car, the Average Energy Efficiency would not change from the default 3.5 mi/kWh after driving. I found the Efficiency since the last charge shown on the App to be quite a bit higher than what would be calculated by miles driven divided by actual kWh used by the EVSE during charging. This discrepancy is due to differences in the amount of kWh consumed at the wall vs the amount of battery energy used to traction the car. The conversion loss, BTM heating, cabin preconditioning, and other energy use during the charging would account for the difference. Still, the difference is sometimes huge, up to 30% more consumption measured at the wall. This affects the overall efficiency of the car and lowers it quite a bit from what is shown on the Lifetime Efficiency on the app.