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Honda Accord Hybrid: Driving Tips & Tricks

89 messages,  Last post on Jan 29, 2009 at 9:30 AM

You are in the Honda Accord Hybrid Forum. Your Host is pf_flyer

What is this discussion about? Honda Accord, Hybrid Cars, Fuel Efficiency (MPG), Sedan


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#1 of 89
Honda Accord Hybrid: Driving Tips & Tricks by pf_flyer HOST
Aug 23, 2006 (5:48 am)
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Looking for advice on how to maximize your mileage performance? This is the place to share and discuss your favorite mileage enhancing driving tips.
#2 of 89
Auto-Stop: why not in Park? by georgepburdell
Jan 02, 2005 (8:49 pm)
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My Accord Hybrid shuts off the engine (they call this Auto-Stop) when the batteries are charged enough and my foot is on the brake and the car is going 8 mph or less. So if I pull into a parking place, for example, the engine Auto-Stops by the time I have stopped moving. And then when I shift into Park, it starts the engine again, just so i can shut it off. This seems odd to me. There must be some reason why they designed it this way, but I don't know it. What could be the purpose of starting the engine again when it shifts into Park, if Auto-Stop has already turned off the engine because I stopped moving?
#3 of 89
Re: Auto-Stop: why not in Park? [georgepburdell] by gagrice
Jan 02, 2005 (9:08 pm)
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Replying to: georgepburdell (Jan 02, 2005 8:49 pm)

When you ask what they found to be the original trouble ask them about this issue. Seems every time the engine starts it will use a bit more gas. Maybe that is why the poor mileage reports that are coming in on the HAH. They may need to fine tune the operating system for the computer.
#4 of 89
Re: Auto-Stop: why not in Park? [georgepburdell] by hondamon
Jan 02, 2005 (9:22 pm)
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Replying to: georgepburdell (Jan 02, 2005 8:49 pm)

I'm no mechanic or tech but a good guess would be:
 
It is a battery saving design I suspect.Putting it in park assumes you may sit idling for some time thus wasting battery charge.
#5 of 89
Re: Auto-Stop: why not in Park? [georgepburdell] by merlin180
Jan 03, 2005 (10:12 am)
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Replying to: georgepburdell (Jan 02, 2005 8:49 pm)

Weird....
 
I agree, if you're in PARK, there isn't much point in restarting the engine.
 
Are you sure it's the act of shifting into PARK that causes the engine to restart? Could it be that you also take your foot off the brake at about the same time so it's actually the releasing of the brakes (before the ignition is turned off) thats causing the restart - just as it would if you stay in DRIVE.
#6 of 89
Re: Auto-Stop: why not in Park? [georgepburdell] by robertsmx
Jan 03, 2005 (10:37 am)
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Replying to: georgepburdell (Jan 02, 2005 8:49 pm)

As I see it, idle-stop does not "turn off" the car. The system is still active and monitoring for driver's actions. Without an intelligent system that "knows" whats in the mind of the driver when he/she stops the car, there has to be an override to be able to "turn off" the whole system, hence the need to "restart".
#7 of 89
Re: Auto-Stop: why not in Park? [merlin180] by georgepburdell
Jan 03, 2005 (11:07 am)
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Replying to: merlin180 (Jan 03, 2005 10:12 am)

My foot never leaves the brake pedal when I'm shifting into Park. So the cause of the engine restarting when I shift into Park is not the brake pedal.
#8 of 89
Re: Auto-Stop: why not in Park? [georgepburdell] by run_n_late
Jan 03, 2005 (11:20 am)
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Replying to: georgepburdell (Jan 03, 2005 11:07 am)

Ok I am not 100% sure that this answer is right but. The hybrid electric motor might not have the gearing to run in reverse there for every time your gear shift passes the reverse gear(which you must do to shift from park from drive) the motor automatically starts because the the gas motor must do all of the work.
 Now I have a question. I have a HAH with Navi on order which had a production date of Dec. 9th. My dealer tells me he has no idea when this car might show up. Can any of you tell me what the production date on your cars, or give me a idea of when I should get mine.
#9 of 89
Re: Auto-Stop: why not in Park? [run_n_late] by ramseyny
Jan 03, 2005 (12:27 pm)
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Replying to: run_n_late (Jan 03, 2005 11:20 am)

Mine was supposed to show in January (After the initial one month delay that pushed all cars back a month) then got bumped to February. I only have one now because the first person in line who had December's car dropped out and I got it. Don't know if that helps. My dealer never promised a specific date, only a specific month.
#10 of 89
Re: Auto-Stop: why not in Park? [georgepburdell] by robertsmx
Jan 03, 2005 (1:28 pm)
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Replying to: georgepburdell (Jan 03, 2005 11:07 am)

My foot never leaves the brake pedal when I'm shifting into Park. So the cause of the engine restarting when I shift into Park is not the brake pedal.
 
Obviously! That is exactly how the computer “knows” that your intention is not continuing idle stop but to park your car. And so, a manual override must take over, with driver “turning off” the car.
 
Try to imagine how an automatic shutdown feature would work. Perhaps it could, but would you want it to have a timer (if you have stopped for longer than 2-5 minutes, the car automatically shuts down)? That may or may not be the best idea for multiple reasons, one being you parking your car while it is really “on”. You still have to get your keys out though.
 
But speaking of keys, if the idle stop logic is integrated with the ignition key, then it could work, but I’m not sure about everything a typical “shutdown process” would involve.

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