New record: 1077.2 mile tank!
08-12-11, 01:34 PM
#31
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I don't fully understand how pluse and glide actually work.
I've read a blog from mike with a prius and a hobbit. Unsure if I really know what to do.
I get up to speed and then try to glide,then accelerate back to speed and glide again.I fee like , i slow down to quick before needing to speed up again..
Do you have a blog to read?
I've read a blog from mike with a prius and a hobbit. Unsure if I really know what to do.
I get up to speed and then try to glide,then accelerate back to speed and glide again.I fee like , i slow down to quick before needing to speed up again..
Do you have a blog to read?
No, I don't have a blog, but if you search KGenaidy's screen name as well as mine, you may find some very useful information on hypermiling the HS. Good luck!
08-17-11, 05:19 PM
#33
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The ICE will not shut off over 41mph. However, you can still P&G above 41, it just won't be as efficient since the ICE will be idling instead of shut down.
08-21-11, 09:55 AM
#34
Hey Airman,
Your driving style definitely impacts your battery level. Read on:
1. Not sure if you are aware but the 1st 50 seconds (approximately) of your warm-up cycle uses basically only battery (the engine is used to warm up the cat converter). So if you accelerate heavily during that 1st 50 seconds you will be discharging the battery more than you think. I always use a Warm-up P&G and that drains the battery more slowly.
2. I never use EV mode (activated by pressing the EV dash button) since that uses only battery for propulsion.
3. If you accelerate slowly from a stop, and you see only the yellow arrows from the battery to the drive wheels, you are, of course, using only battery for propulsion. I try not to do this too often.
4. The more you use your headlights and DRLs, the more battery you use. I keep my DRLs off.
5. While accelerating, if you see only orange arrows, as opposed to both orange and yellow, you will be charging your battery faster. To get only orange arrows, you will have to accelerate more slowly.
6. Any accessories you use will discharge the battery, hence I don't use a/c or heat (the 2 biggest drains on the battery). For long glides, I turn off my radio and close my Nav screen.
These aren't the only items that affect battery charge, but will give you an idea how you can impact your battery level
Your driving style definitely impacts your battery level. Read on:
1. Not sure if you are aware but the 1st 50 seconds (approximately) of your warm-up cycle uses basically only battery (the engine is used to warm up the cat converter). So if you accelerate heavily during that 1st 50 seconds you will be discharging the battery more than you think. I always use a Warm-up P&G and that drains the battery more slowly.
2. I never use EV mode (activated by pressing the EV dash button) since that uses only battery for propulsion.
3. If you accelerate slowly from a stop, and you see only the yellow arrows from the battery to the drive wheels, you are, of course, using only battery for propulsion. I try not to do this too often.
4. The more you use your headlights and DRLs, the more battery you use. I keep my DRLs off.
5. While accelerating, if you see only orange arrows, as opposed to both orange and yellow, you will be charging your battery faster. To get only orange arrows, you will have to accelerate more slowly.
6. Any accessories you use will discharge the battery, hence I don't use a/c or heat (the 2 biggest drains on the battery). For long glides, I turn off my radio and close my Nav screen.
These aren't the only items that affect battery charge, but will give you an idea how you can impact your battery level
But what you posted here kind of shot my whole theory of how I thought a hybrid operated out of the water.
You never use EV mode? I thought that was what hybrids were all about. Being able to run and move without using gas. But now it seems that EV mode uses more of the battery, which in turn causes the ICE to run more, which burns more gas in the long run. Is that right? Or is it a balancing act between the two?
Also you said you don't use the radio or NAV. Don't these run on 12 volt? I could see the A/C or heater causing the ICE to run more, but a 12 volt system doesn't drain the 245 volt hybrid battery. How does that help?
08-21-11, 10:00 AM
#35
Hey Airman,
Your driving style definitely impacts your battery level. Read on:
1. Not sure if you are aware but the 1st 50 seconds (approximately) of your warm-up cycle uses basically only battery (the engine is used to warm up the cat converter). So if you accelerate heavily during that 1st 50 seconds you will be discharging the battery more than you think. I always use a Warm-up P&G and that drains the battery more slowly.
2. I never use EV mode (activated by pressing the EV dash button) since that uses only battery for propulsion.
3. If you accelerate slowly from a stop, and you see only the yellow arrows from the battery to the drive wheels, you are, of course, using only battery for propulsion. I try not to do this too often.
4. The more you use your headlights and DRLs, the more battery you use. I keep my DRLs off.
5. While accelerating, if you see only orange arrows, as opposed to both orange and yellow, you will be charging your battery faster. To get only orange arrows, you will have to accelerate more slowly.
6. Any accessories you use will discharge the battery, hence I don't use a/c or heat (the 2 biggest drains on the battery). For long glides, I turn off my radio and close my Nav screen.
These aren't the only items that affect battery charge, but will give you an idea how you can impact your battery level
Your driving style definitely impacts your battery level. Read on:
1. Not sure if you are aware but the 1st 50 seconds (approximately) of your warm-up cycle uses basically only battery (the engine is used to warm up the cat converter). So if you accelerate heavily during that 1st 50 seconds you will be discharging the battery more than you think. I always use a Warm-up P&G and that drains the battery more slowly.
2. I never use EV mode (activated by pressing the EV dash button) since that uses only battery for propulsion.
3. If you accelerate slowly from a stop, and you see only the yellow arrows from the battery to the drive wheels, you are, of course, using only battery for propulsion. I try not to do this too often.
4. The more you use your headlights and DRLs, the more battery you use. I keep my DRLs off.
5. While accelerating, if you see only orange arrows, as opposed to both orange and yellow, you will be charging your battery faster. To get only orange arrows, you will have to accelerate more slowly.
6. Any accessories you use will discharge the battery, hence I don't use a/c or heat (the 2 biggest drains on the battery). For long glides, I turn off my radio and close my Nav screen.
These aren't the only items that affect battery charge, but will give you an idea how you can impact your battery level
But what you posted here kind of shot my whole theory of how I thought a hybrid operated out of the water.
You never use EV mode? I thought that was what hybrids were all about. Being able to run and move without using gas. But now it seems that EV mode uses more of the battery, which in turn causes the ICE to run more, which burns more gas in the long run. Is that right? Or is it a balancing act between the two?
Also you said you don't use the radio or NAV. Don't these run on 12 volt? I could see the A/C or heater causing the ICE to run more, but a 12 volt system doesn't drain the 245 volt hybrid battery. How does that help?
You saved like what $200+?
08-21-11, 06:53 PM
#37
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You never use EV mode? I thought that was what hybrids were all about. Being able to run and move without using gas. But now it seems that EV mode uses more of the battery, which in turn causes the ICE to run more, which burns more gas in the long run. Is that right? Or is it a balancing act between the two?
Also you said you don't use the radio or NAV. Don't these run on 12 volt? I could see the A/C or heater causing the ICE to run more, but a 12 volt system doesn't drain the 245 volt hybrid battery. How does that help?
Also you said you don't use the radio or NAV. Don't these run on 12 volt? I could see the A/C or heater causing the ICE to run more, but a 12 volt system doesn't drain the 245 volt hybrid battery. How does that help?
Re your statement about being able to run without using gas, when you P&G correctly, the ICE will be shut down 60-70% of the time (where you will be using no fuel).
Additionally, I'm not sure if you've noticed but when your hybrid battery is FULLY charged, both the ICE and the battery pack will be used to drive your wheels. This will be evidenced by the arrows from both the ICE and the battery pack flowing to the wheels. When in this state your instant MPG gauge will show that your MPGs are approx twice as high compared to just the ICE driving the wheels. Please be aware that your battery pack is not fully charged even after you have all the blue bars showing. You must continue charging the battery (evidenced by the arrows flowing to the battery pack) even after all blue bars are shown, eventually you will achieve full charge (evidenced by arrows from both the ICE and the battery pack flowing to the drive wheels).
I'm not entirely sure how the accessories and the 12v battery work in conjunction with the HSD system. I've read (somewhere) that if the 12v battery gets low, the hybrid battery helps charge it. Again, I'm not sure of the accuracy of this statement. If use of the radio and NAV have no affect on the hybrid battery, I'd like to know for sure since driving without music is not as much fun. Are you absolutely sure use of the accessories has no negative effect on battery strength and gas mileage?
08-23-11, 03:35 PM
#39
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I spoke with a technician at the dealer who was the first person there that seemed to know something about HSD. He said the HSD system is a learning system, whereby it takes into account things like how you drive, ambient temp and so forth and makes adjustments. When I told him my EBH burned out he said that would definitely make a difference since the HSD is used to starting up every time with the engine warm. When it suddenly starts with the engine cold, it gets confused. I guess it makes some sense because the 20% drop in MPG came immediately after my EBH burned out and recovered somewhat, but not entirely, after it was replaced. I'm not really complaining too much since my tank MPG only dropped from 73mpg to 71mpg. I wish I could go back to the 73, maybe it will once the HSD re-learns everything again.
03-15-12, 02:31 PM
#40
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Hyperme,
Don't know if you're still around, but I would be very interested to hear you give some info on techniques at our local car club.
PM me if you are still around these boards.
Don't know if you're still around, but I would be very interested to hear you give some info on techniques at our local car club.
PM me if you are still around these boards.
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