cpa
Active Member
You can always start out the leg going a few miles beneath the speed limit. Keep your eye on the energy graph. Let's assume the car thinks that you will arrive at Page with 6%. Just go slower than normal. The energy graph shows a gray line (original calculation) and a green line (adjusted calculation based on the actual usage.) After 15-20 miles of driving, the green line on the graph should move up and reflect a larger arrival percentage, guessing 8%. In essence you have banked additional range at the expense of driving more slowly. Continue your speed until the graph determines the arrival percentage that you are comfortable with. Once your arrival percentage is in your comfort zone, you can increase your speed slowly until it more or less stays +/- 2% of your target.
Once Page is within your sights, perhaps 30-40 miles away, and your reserve upon arrival is decent, you can zoom as fast as you like.
I made the trip from Blanding to Flagstaff without stopping in our '14 S85. This was before the energy graph. I left Blanding with 100%, and drove around 54MPH all the way to the junction with US89. I had about 30% remaining in the battery, and I drove about 65-70 all the way to Flagstaff, arriving with about 8%.
One year later, I drove the leg from Salina, Kansas to Goodland, Kansas, roughly 143 miles. There is a 1600+ foot elevation gain, and the northwest wind was easily blowing 35 MPH. I left Salina with 96%. By now the energy graph had been installed on the touchscreen. My arrival % was estimated to be 24%--ample I thought even with the crosswind. Wrong! After 30 miles my estimated reserve had dropped to under 8%, so I slowed from 62 to 58 to 55 to 52 before cruising at a leisurely 48. The reserve started to increase slightly to around 12%. I made it!
Once Page is within your sights, perhaps 30-40 miles away, and your reserve upon arrival is decent, you can zoom as fast as you like.
I made the trip from Blanding to Flagstaff without stopping in our '14 S85. This was before the energy graph. I left Blanding with 100%, and drove around 54MPH all the way to the junction with US89. I had about 30% remaining in the battery, and I drove about 65-70 all the way to Flagstaff, arriving with about 8%.
One year later, I drove the leg from Salina, Kansas to Goodland, Kansas, roughly 143 miles. There is a 1600+ foot elevation gain, and the northwest wind was easily blowing 35 MPH. I left Salina with 96%. By now the energy graph had been installed on the touchscreen. My arrival % was estimated to be 24%--ample I thought even with the crosswind. Wrong! After 30 miles my estimated reserve had dropped to under 8%, so I slowed from 62 to 58 to 55 to 52 before cruising at a leisurely 48. The reserve started to increase slightly to around 12%. I made it!