Mitsubishi Outlander PHEV Forum

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 Post subject: Re: New owner haven't got a clue. Help and tips needed pleas
PostPosted: Tue Sep 12, 2017 3:19 am 
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Location: Netherlands, Utrecht area
Lance wrote:
The only thing I slightly disagree with is point 6 where I would argue you should arrive home with zero (or as close as possible) electric range (assuming at some point petrol had to be used on the journey).
Haha. several times I have actually brought my car to a halt close to home (< 1km), to stop the hysteresis cycle from recharging my battery with power I did not need for the remained of my trip.


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 Post subject: Re: New owner haven't got a clue. Help and tips needed pleas
PostPosted: Tue Sep 12, 2017 3:27 pm 
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Joined: Mon May 08, 2017 3:01 am
Posts: 39
Location: West Sussex England
Lance wrote:
The only thing I slightly disagree with is point 6 where I would argue you should arrive home with zero (or as close as possible) electric range (assuming at some point petrol had to be used on the journey).


I wasn't sure exactly what value to put there and I agree less is best.

For the benefit of the OP to add to (6) if the journey is greater than the EV range and the Save button is used only use it enough to realise the sort of value we have been discussing on reaching home (IMHO)


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 Post subject: Re: New owner haven't got a clue. Help and tips needed pleas
PostPosted: Tue Sep 12, 2017 3:29 pm 
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Joined: Mon May 08, 2017 3:01 am
Posts: 39
Location: West Sussex England
anko wrote:
Lance wrote:
The only thing I slightly disagree with is point 6 where I would argue you should arrive home with zero (or as close as possible) electric range (assuming at some point petrol had to be used on the journey).
Haha. several times I have actually brought my car to a halt close to home (< 1km), to stop the hysteresis cycle from recharging my battery with power I did not need for the remained of my trip.



Hi Anko

I know you are very experienced and knowledgable PHEV driver so could you please explain in different way your statement?


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 Post subject: Re: New owner haven't got a clue. Help and tips needed pleas
PostPosted: Wed Sep 13, 2017 3:45 am 
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Joined: Mon Dec 01, 2014 11:30 am
Posts: 2489
Location: Netherlands, Utrecht area
When the battery is 'near empty', the ICE will be started to drive the car and recharge the battery while doing so. after some time, the battery is no longer 'near empty' and the ICE will stop. And so on. The moment the ICE is started is dictated by the low water mark. The high water mark dictates when the ICE is turned off again. The high and low water marks are not totally fixed, but depend on factors as speed and whether the ICE is already warm (a warm ICE is happy to provide power immediately, so the low water mark can be set lower).

This mechanism is called the hysteresis cycle. Now imagine you reach the low water mark at 1.5 km from your destination. After for example half that distance you may have recharged enough power to reach your destination in EV mode before hitting the low water mark again. But, not knowing what your destination is, the car insists on completing the hysteresis cycle until the high water mark is reached. Consequently, you are generating power that you do not need in order to get to your destination.

Stopping or slowing down the car may change the cars mind on completing the hysteresis cycle. Sometimes, it seems slowing down to almost 0 MPH is sufficient, sometimes I really need to make a full stop to brake the cycle.


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 Post subject: Re: New owner haven't got a clue. Help and tips needed pleas
PostPosted: Wed Sep 13, 2017 3:43 pm 
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Joined: Mon May 08, 2017 3:01 am
Posts: 39
Location: West Sussex England
Anko, thanks for the clarification and extra information, I will bear it in mind.


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 Post subject: Re: New owner haven't got a clue. Help and tips needed pleas
PostPosted: Thu Sep 14, 2017 1:47 am 
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Location: Netherlands, Utrecht area
Austen wrote:
I will bear it in mind.
I advise you not to. Or you will end up as obsessed as I am :mrgreen:


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 Post subject: Re: New owner haven't got a clue. Help and tips needed pleas
PostPosted: Thu Sep 14, 2017 1:57 am 
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Joined: Fri Jul 18, 2014 4:46 am
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anko wrote:
Austen wrote:
I will bear it in mind.
I advise you not to. Or you will end up as obsessed as I am :mrgreen:


:lol:


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 Post subject: Re: New owner haven't got a clue. Help and tips needed pleas
PostPosted: Thu Sep 14, 2017 2:13 am 
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Joined: Fri Apr 15, 2016 12:46 pm
Posts: 25
anko wrote:

This mechanism is called the hysteresis cycle. Now imagine you reach the low water mark at 1.5 km from your destination. After for example half that distance you may have recharged enough power to reach your destination in EV mode before hitting the low water mark again. But, not knowing what your destination is, the car insists on completing the hysteresis cycle until the high water mark is reached. Consequently, you are generating power that you do not need in order to get to your destination.

Stopping or slowing down the car may change the cars mind on completing the hysteresis cycle. Sometimes, it seems slowing down to almost 0 MPH is sufficient, sometimes I really need to make a full stop to brake the cycle.


Anko thank you for a clear and illuminating explanation of how the hysteresis cycle works in the Outlander. Having a relatively new car I am lucky enough to have an EV switch. I haven't used it much yet because in the mild weather the ICE is pretty reluctant to get involved until the main battery is down to one bar. However, the posts above make me wonder whether selecting EV when the ICE is in the middle of the recharge phase of the hysteresis cycle will cause the ICE to switch off. Probably not but I will check next time I can.

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 Post subject: Re: New owner haven't got a clue. Help and tips needed pleas
PostPosted: Thu Sep 14, 2017 2:23 am 
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Joined: Mon Dec 01, 2014 11:30 am
Posts: 2489
Location: Netherlands, Utrecht area
WAH64 wrote:
Probably not but I will check next time I can.
Bets are made. Keep us posted! ;)


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 Post subject: Re: New owner haven't got a clue. Help and tips needed pleas
PostPosted: Thu Sep 14, 2017 2:48 pm 
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Joined: Fri Oct 02, 2015 3:22 am
Posts: 378
Location: Chesterfield, Derbyshire, UK
Just wondering where the OP has disappeared to.

JimB

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