kmp647
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Does the Leaf have a radiator?

Thu Nov 04, 2010 2:49 pm

I see coolant fill caps , question is there a radiator?
Can we confirm if the motor is air or water cooled?

Some of nissans current ads advertise "no radiator"
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order 07/28/2011
took delivery 11/11/11
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jcesare
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Leaf Number: 1290
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Re: Does the Leaf have a radiator?

Thu Nov 04, 2010 2:54 pm

kmp647 wrote:I see coolant fill caps , question is there a radiator?
Can we confirm if the motor is air or water cooled?

Some of nissans current ads advertise "no radiator"
There is no radiator. The coolant is used to cool the cables during charging.
Leaf eTec Blue Ocean
Reserved 6/25/10
EVProject approved 1/06/11
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Ordered 1/25/11 Delivered 4/20/2011

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EVDRIVER
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Re: Does the Leaf have a radiator?

Thu Nov 04, 2010 2:59 pm

jcesare wrote:
kmp647 wrote:I see coolant fill caps , question is there a radiator?
Can we confirm if the motor is air or water cooled?

Some of nissans current ads advertise "no radiator"
There is no radiator. The coolant is used to cool the cables and inverter during charging.


The inverter is not a charger it regulates power to the motor. The motor, inverter and possibly (in some evs) the charger are water cooled as it is more efficient than fans. In addition there is a separate heat exchanger radiator for the AC. The charge cables are not cooled. Not sure where you came up with that information but I would be very curious.

jcesare
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Re: Does the Leaf have a radiator?

Thu Nov 04, 2010 3:00 pm

EVDRIVER wrote:
jcesare wrote:
kmp647 wrote:I see coolant fill caps , question is there a radiator?
Can we confirm if the motor is air or water cooled?

Some of nissans current ads advertise "no radiator"
There is no radiator. The coolant is used to cool the cables and inverter during charging.


The inverter is not a charger it regulates power to the motor. The motor, inverter and possibly (in some evs) the charger are water cooled as it is more efficient than fans. In addition there is a separate heat exchanger radiator for the AC. The charge cables are not cooled. Not sure where you came up with that information but I would be very curious.
I was told this during the test drive event by the Nissan engineer.
Leaf eTec Blue Ocean
Reserved 6/25/10
EVProject approved 1/06/11
Blink EVSE Installed 4/6/11 (Separate meter, ethernet connection)
Ordered 1/25/11 Delivered 4/20/2011

kmp647
Posts: 1136
Joined: Tue Jul 27, 2010 4:00 pm
Delivery Date: 11 Nov 2011
Location: Northern Virginia

Re: Does the Leaf have a radiator?

Thu Nov 04, 2010 3:03 pm

I am sure there is an a/c condenser must have one of those

I am trying to figure what parts are water cooled still
Inverter?

Guess it's water cooled , but no radiator per se, just circulates and radiates thru the lines?
2012 SL Leaf
order 07/28/2011
took delivery 11/11/11
47,000 miles 10 bars 211 gids
Turned back into Nissan 12/31/14 @ 50,000 miles
BMW i3 rex 24 month lease
2017 BMW X540e phev
Tesla model 3 reservation

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Re: Does the Leaf have a radiator?

Thu Nov 04, 2010 3:17 pm

[

Some of nissans current ads advertise "no radiator"[/quote]

There is no radiator. The coolant is used to cool the cables and inverter during charging.[/quote]



The inverter is not a charger it regulates power to the motor. The motor, inverter and possibly (in some evs) the charger are water cooled as it is more efficient than fans. In addition there is a separate heat exchanger radiator for the AC. The charge cables are not cooled. Not sure where you came up with that information but I would be very curious.[/quote]

I was told this during the test drive event by the Nissan engineer.[/quote]

I think you may have spoken to a temp hired for the event. What I said before is accurate and if the leaf has cooled cables I'll buy you a pizza, never lost a pizza bet. The Leaf has two radiators, like a car with AC. I have seen it, followed the cooling lines and examined the system in detail. It's no different than any other water cooled EV. You don't liquid cool an motor and inverter without a radiator, that is how the heat is removed. The person you spoke to had no idea what they were talking about, do they make this up as they go along?

smkettner
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Re: Does the Leaf have a radiator?

Thu Nov 04, 2010 3:20 pm

The motor and inverter are known to be water cooled. I would assume there is a radiator and coolent pump.

I would also assume all Leaf engineers are actually in Japan and not hanging around at test drives or any public event.
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Re: Does the Leaf have a radiator?

Thu Nov 04, 2010 3:23 pm

smkettner wrote:The motor and inverter are known to be water cooled. I would assume there is a radiator and coolent pump.

I would also assume all Leaf engineers are actually in Japan and not hanging around at test drives or any public event.

Correct, so let's not go over the given facts again since this is fully established. If anyone doubts this they can pop the hood and look for themselves.

kmp647
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Re: Does the Leaf have a radiator?

Thu Nov 04, 2010 3:35 pm

It's just funny I knew it had to have a radiator, no sense in collecting heat from stuff if you can't radiate it away to the air

Nissan needs to make sure there ad company is just a tad more accurate

Not that it's a big deal
2012 SL Leaf
order 07/28/2011
took delivery 11/11/11
47,000 miles 10 bars 211 gids
Turned back into Nissan 12/31/14 @ 50,000 miles
BMW i3 rex 24 month lease
2017 BMW X540e phev
Tesla model 3 reservation

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EVDRIVER
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Re: Does the Leaf have a radiator?

Thu Nov 04, 2010 3:46 pm

kmp647 wrote:It's just funny I knew it had to have a radiator, no sense in collecting heat from stuff if you can't radiate it away to the air

Nissan needs to make sure there ad company is just a tad more accurate

Not that it's a big deal

I have been involved with EVs for about seven years in almost every capacity from building, buying, and consulting for manufacturers. Other than parts manufacturers and converters, few people really understand EVs and quite a bit of inaccurate info is spread about. Other than Nissan engineers, many at Nissan don't really understand or are not able to explain the technology but this is expected since not every person understands an ICE either. There are plenty of EV resources on the web including the EVDL discussion list for those that really want to learn the technology. Hired PR people should not discuss technology, scary.

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