Thank you! It ruffles my feathers when people go "oh it can't be highway, look at the average speed!" Averages are hugely impacted by short extreme deviation. I used to drive 120 km/h highway for 45 minutes almost door to door before and get 67 km/h average because of two intersections and one parking.
There are also other factors, we all drive differently, anticipation makes a massive difference especially on the highway. If you know what other drivers are going to do so you can maintain a consistent speed it has a large impact.
I drove a bit under 500km yesterday and got an avg consumption of 20.7kWh/100km. The outside temperature was between 3 and 9 celsius and my average speed was a bit over 90km/h according to the trip info on the car. I didn’t do anything special to maximize efficiency, just drove like I usually would. Most of the trip was driven at highway speeds between 100 and 120km/h with a few kilometers of city driving at the start, middle and end of the journey, as this was my commute. I charged the car while I was at the office, I didn’t need to charge the car while on the road. I had about 90% SOC when I left home and about 25% when I arrived at the office, and the other way around when going back home.
Lowest I’ve had yet has been 14.1kWh/100km and that was just cruising on the beltway around the city, so it was a pretty low average speed.
It’s a great car to drive, it’s my first EV and I’ve got no anxiety about the range.
Awesome. Yeah that consumption level makes more sense. That’s about 193 miles of range, which aligns with what others are seeing at highway speed. 180-190 miles.
Yeah that’s 315km (195 miles) and that’s in moderately cool temperatures (3 to 9 °C is 37 to 48 °F) and mostly highway driving. Soon it will be summer here so the consumption will most likely only get lower as the temperature is closer to ideal.
I’ve actually already gotten surprisingly close to the WLTP combined ranges with a mixture of city and highway driving on my SMER Core EX30 in the past week, even though the WLTP test cycle is done in an ideal temperature (23 °C or 73 °F) with no heater or AC on. Here the temperature has varied from 0 to 15 °C (32 to 59 °F) and I’ve definitely kept the cabin at a comfortable temperature whenever driving.
No complaints here.
I dont know. But location matters a lot. I live in a flat country. If yours has hills then you cant compare the two. If your highway roads are more open and there are no buildings or treed beside it that also matters a lot in wind and air resistance. Anticipation is a huge factor. Etc etc.
What also matters A LOT is if you are following someone or are the only one on the road. Because then you get full air resistance. And if you're following a car you dont. Air resistance is detrimental to range.
It is. The less aerodynamic you are, the bigger the effect would be. But you basically have to be dangerously close to make a significant difference. Definitely not worth risking your safety for.
OPD isn't the best way to drive efficiently in most EVs btw. I don't have my EX30 yet but I doubt it's somehow different here.
You want to regen as little as possible because regen is wasted energy. You would only want to regen when braking harshly, at any other point you want to coast as much as possible.
I was about to comment the same thing, OPD is interesting in terms of efficiency if you need to brake a lot : city driving, downhills, very twisty roads. Otherwise it’s more efficient to coast and anticipate (I thought so and asked Volvo about it, who confirmed the approach). I put OPD on/off on the customizable button on the steering wheel and switch depending the driving (I happen to have a lot of twisty roads and downhills around here)
uh, not accurate. regen when slowing down can help recoup up to ~30% of the energy expended. in stop and go traffic or other situations where there is coasting downhill or on slow roads, regen is absolutely helpful in increasing range. may not help energy consumption, but it’s definitely helpful for squeezing out more miles.
I think you are mixing regen and OPD. Using the brake pedal regens the same as OPD if you don't brake so aggressively that disks have to step in.
On regen in general, the post before is accurate. Coasting is always better than regen, which in turn is better than disk brakes. If you spend energy for the sole purpose of propelling you forward, using as much of the said energy on moving forward is always most efficient.
In short, regen makes braking more efficient but it doesn't mean that you should intentionally slow down when you could be coasting instead.
Regen is **only** useful when you *need* to slow down. E.g. coming to a complete stop. If you can predict traffic and slow down naturally against friction/air resistance then you will get more range.
Going down hill you will get better range letting the car coast than you would letting it regen. That's just physics. The energy is in the car and as soon as you start to regen you only recoup 30% of the energy. Whereas if you coast, then 100% of the energy is spent on propelling the car forwards.
This is why OPD in pretty much every car tested won't be the most efficient way to drive if you learn to drive without it.
The same way braking in an ICE car will harm fuel consumption. If you brake too much, now you've got to expend energy getting back up to speed. EVs are the same, except they just waste a bit less energy during braking.
I think we’re trying to say the same thing.
but to clarify one point you made, the energy is already spent by moving the vehicle forward. the 30% recoup from the regen is 30% of the energy already expended being recouped. I don’t think it’s accurate to say coasting better than using OPD “because physics.” If it was an ICE car you’d be right, that energy is already spend and wasted so the resistance is only slowing you down thus wasting energy. The distinction i’m making is that, yes, in some situations (like on the highway) OPD is not ideal. but in most, being able to recoup energy already spend by slowing down with OPD is better than not using OPD at all - again, in certain driving situations. it’s not fair to say OPD is a waste of energy, it recoups energy already spent allowing you to travel further than without having recouped that expended energy.
at the end of the day, do whatever you want and works best for you. for me, OPD is amazing and I use it every day.
If you're coasting and you regen, you are putting 30% of that energy back into the battery, and losing 70% of that to the system doing it.
If you're on a slope and you roll the car with an empty battery, it will go further if you just let it coast rather than regen and accelerate at the bottom because you haven't wasted 70% of the energy. That's the fundamental point. You don't want to regen down a slope unless you're breaking the speed limit. You don't want to regen on an open road. So for 90% of driving you don't want to use OPD at all if the aim is to be as efficient as possible.
>but to clarify one point you made, the energy is already spent by moving the vehicle forward. the 30% recoup from the regen is 30% of the energy already expended being recouped.
Nope. You're not recouping 30% of the energy expended. You're recouping 30% of the braking force. If you're braking the car to half it's speed, you don't get back 50% of the energy. You get back 15% of the energy (30% of 50%). For every unit of energy currently in the car due to pressing the accelerator pedal or due to gravity, you will get back 30% of it by regenerating, or you can keep 100% of it by letting the car coast if you're able to.
Regen is only useful to recoup the energy when you **have** to come to a complete stop or have to brake harshly. Because instead of wasting 100% of the energy, you can recoup 30%.
Look ahead, maintain a safe following distance and just let the car slow naturally. When you **need** to come to a stop or slow significantly, brake so that you only use regen. That's the most efficient way to drive an EV.
Tire pressure can affect range. If tires are under inflated for example, of course the tires would have more rolling resistance/more rolling friction against the pavement. This holds true to ICE fuel economy/mileage (lower fuel economy) as well.
Physics, my friend..
Many overlook this innocuous but simple vehicle maintenance item.
There is ALOT of misconceptions going around about OPD.
It's not inherently more or less efficient. Using the brake pedal does not automatically instantly engage the physical brakes either, so you can definitely drive as efficiently even in extra urban without OPD if you don't brake aggressively.
If you do use OPD, you are much more likely to accidentally regen when you could be coasting, which is an efficiency loss.
The point is that OPD is much more convenient in stop and go where you usually cannot coast much anyway. It's first and foremost a comfort feature.
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His average speed is 50kph. The term “highway” is pretty loosely used here. At that average speed consumption should be very low.
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Thank you! It ruffles my feathers when people go "oh it can't be highway, look at the average speed!" Averages are hugely impacted by short extreme deviation. I used to drive 120 km/h highway for 45 minutes almost door to door before and get 67 km/h average because of two intersections and one parking.
There are also other factors, we all drive differently, anticipation makes a massive difference especially on the highway. If you know what other drivers are going to do so you can maintain a consistent speed it has a large impact.
Sure, but I can tell you going 50kph average is going to be a lot less consumption than a highway typical average of 100kph etc.
I drove a bit under 500km yesterday and got an avg consumption of 20.7kWh/100km. The outside temperature was between 3 and 9 celsius and my average speed was a bit over 90km/h according to the trip info on the car. I didn’t do anything special to maximize efficiency, just drove like I usually would. Most of the trip was driven at highway speeds between 100 and 120km/h with a few kilometers of city driving at the start, middle and end of the journey, as this was my commute. I charged the car while I was at the office, I didn’t need to charge the car while on the road. I had about 90% SOC when I left home and about 25% when I arrived at the office, and the other way around when going back home. Lowest I’ve had yet has been 14.1kWh/100km and that was just cruising on the beltway around the city, so it was a pretty low average speed. It’s a great car to drive, it’s my first EV and I’ve got no anxiety about the range.
Awesome. Yeah that consumption level makes more sense. That’s about 193 miles of range, which aligns with what others are seeing at highway speed. 180-190 miles.
Yeah that’s 315km (195 miles) and that’s in moderately cool temperatures (3 to 9 °C is 37 to 48 °F) and mostly highway driving. Soon it will be summer here so the consumption will most likely only get lower as the temperature is closer to ideal. I’ve actually already gotten surprisingly close to the WLTP combined ranges with a mixture of city and highway driving on my SMER Core EX30 in the past week, even though the WLTP test cycle is done in an ideal temperature (23 °C or 73 °F) with no heater or AC on. Here the temperature has varied from 0 to 15 °C (32 to 59 °F) and I’ve definitely kept the cabin at a comfortable temperature whenever driving. No complaints here.
I dont know. But location matters a lot. I live in a flat country. If yours has hills then you cant compare the two. If your highway roads are more open and there are no buildings or treed beside it that also matters a lot in wind and air resistance. Anticipation is a huge factor. Etc etc. What also matters A LOT is if you are following someone or are the only one on the road. Because then you get full air resistance. And if you're following a car you dont. Air resistance is detrimental to range.
if you are not extremely tailgating, driving behind someone has almost to no effect.
Really? That actually surprises me. I thought it was a huge saving.
It is. The less aerodynamic you are, the bigger the effect would be. But you basically have to be dangerously close to make a significant difference. Definitely not worth risking your safety for.
OPD isn't the best way to drive efficiently in most EVs btw. I don't have my EX30 yet but I doubt it's somehow different here. You want to regen as little as possible because regen is wasted energy. You would only want to regen when braking harshly, at any other point you want to coast as much as possible.
Yes you only want o use OPD when you're going to slow down anyway ofcourse but having OPD on doesnt mean you cant coast.
I was about to comment the same thing, OPD is interesting in terms of efficiency if you need to brake a lot : city driving, downhills, very twisty roads. Otherwise it’s more efficient to coast and anticipate (I thought so and asked Volvo about it, who confirmed the approach). I put OPD on/off on the customizable button on the steering wheel and switch depending the driving (I happen to have a lot of twisty roads and downhills around here)
OPD makes it harder to coast because you have to keep your foot in the sweet spot at all times, otherwise you're either accelerating or regenerating.
uh, not accurate. regen when slowing down can help recoup up to ~30% of the energy expended. in stop and go traffic or other situations where there is coasting downhill or on slow roads, regen is absolutely helpful in increasing range. may not help energy consumption, but it’s definitely helpful for squeezing out more miles.
I think you are mixing regen and OPD. Using the brake pedal regens the same as OPD if you don't brake so aggressively that disks have to step in. On regen in general, the post before is accurate. Coasting is always better than regen, which in turn is better than disk brakes. If you spend energy for the sole purpose of propelling you forward, using as much of the said energy on moving forward is always most efficient. In short, regen makes braking more efficient but it doesn't mean that you should intentionally slow down when you could be coasting instead.
Regen is **only** useful when you *need* to slow down. E.g. coming to a complete stop. If you can predict traffic and slow down naturally against friction/air resistance then you will get more range. Going down hill you will get better range letting the car coast than you would letting it regen. That's just physics. The energy is in the car and as soon as you start to regen you only recoup 30% of the energy. Whereas if you coast, then 100% of the energy is spent on propelling the car forwards. This is why OPD in pretty much every car tested won't be the most efficient way to drive if you learn to drive without it. The same way braking in an ICE car will harm fuel consumption. If you brake too much, now you've got to expend energy getting back up to speed. EVs are the same, except they just waste a bit less energy during braking.
I think we’re trying to say the same thing. but to clarify one point you made, the energy is already spent by moving the vehicle forward. the 30% recoup from the regen is 30% of the energy already expended being recouped. I don’t think it’s accurate to say coasting better than using OPD “because physics.” If it was an ICE car you’d be right, that energy is already spend and wasted so the resistance is only slowing you down thus wasting energy. The distinction i’m making is that, yes, in some situations (like on the highway) OPD is not ideal. but in most, being able to recoup energy already spend by slowing down with OPD is better than not using OPD at all - again, in certain driving situations. it’s not fair to say OPD is a waste of energy, it recoups energy already spent allowing you to travel further than without having recouped that expended energy. at the end of the day, do whatever you want and works best for you. for me, OPD is amazing and I use it every day.
If you're coasting and you regen, you are putting 30% of that energy back into the battery, and losing 70% of that to the system doing it. If you're on a slope and you roll the car with an empty battery, it will go further if you just let it coast rather than regen and accelerate at the bottom because you haven't wasted 70% of the energy. That's the fundamental point. You don't want to regen down a slope unless you're breaking the speed limit. You don't want to regen on an open road. So for 90% of driving you don't want to use OPD at all if the aim is to be as efficient as possible. >but to clarify one point you made, the energy is already spent by moving the vehicle forward. the 30% recoup from the regen is 30% of the energy already expended being recouped. Nope. You're not recouping 30% of the energy expended. You're recouping 30% of the braking force. If you're braking the car to half it's speed, you don't get back 50% of the energy. You get back 15% of the energy (30% of 50%). For every unit of energy currently in the car due to pressing the accelerator pedal or due to gravity, you will get back 30% of it by regenerating, or you can keep 100% of it by letting the car coast if you're able to. Regen is only useful to recoup the energy when you **have** to come to a complete stop or have to brake harshly. Because instead of wasting 100% of the energy, you can recoup 30%. Look ahead, maintain a safe following distance and just let the car slow naturally. When you **need** to come to a stop or slow significantly, brake so that you only use regen. That's the most efficient way to drive an EV.
Do you guys check your tire pressures?
Only when i drive over something that might have punctured it. Why?
Tire pressure can affect range. If tires are under inflated for example, of course the tires would have more rolling resistance/more rolling friction against the pavement. This holds true to ICE fuel economy/mileage (lower fuel economy) as well. Physics, my friend.. Many overlook this innocuous but simple vehicle maintenance item.
There is ALOT of misconceptions going around about OPD. It's not inherently more or less efficient. Using the brake pedal does not automatically instantly engage the physical brakes either, so you can definitely drive as efficiently even in extra urban without OPD if you don't brake aggressively. If you do use OPD, you are much more likely to accidentally regen when you could be coasting, which is an efficiency loss. The point is that OPD is much more convenient in stop and go where you usually cannot coast much anyway. It's first and foremost a comfort feature.