How do you get the interior temperature up to a reasonable level on an extremely cold day, since the gasoline engine will not be operating during warmup?
Interior heat
swilseck
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So are what you are saying is that if you turn the heat on, the ICE will start up? Under normal starting conditions it seems that only the electric motors start. We're new to this car and just learning the peculiarities of a hybrid. I've walked away from the car leaving the motor running, but that's not happening anymore. Thanks.ICE starts as needed to make cabin heat. Don’t do a remote warmup when parked in an enclosed garage.
When you say the motor will heat things up, do you mean the electric motor.? When you start the car, I thought only the electric motor is running? Does that produce heat to warm the water and oil of the gas engine?
Thanks.
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881 Posts
I think the compressor does Heat and Cold. like a heat pump...
It will produce heat and cold if the batteries have enough charge, Like at a stop light, etc...
But the ICE will come on and heat like a regular car.. to heat the cabin, and if there is battery power... It will shut down and let the heat pump take over, until the battery level drops to 3 bars... then kick on again...
So the heat is the ICE and the battery powered Heat pump ( A/C also )
It will produce heat and cold if the batteries have enough charge, Like at a stop light, etc...
But the ICE will come on and heat like a regular car.. to heat the cabin, and if there is battery power... It will shut down and let the heat pump take over, until the battery level drops to 3 bars... then kick on again...
So the heat is the ICE and the battery powered Heat pump ( A/C also )
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772 Posts
Exactly. Now that we're having some cold mornings, when I get in, start the car, and turn the heat up, the ICE starts running. I'm sure there's no heat pump or auxiliary resistive heating. ICE is required to make cabin heat. My e-Golf had a heat pump in addition to resistive heating and it also could scavenge some heat from the electric drive motor.
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881 Posts
really, wow,
Thanks for sharing.
I read that somewhere... that the rav4 used a heat pump...
i'll try to find where i made my mistake
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Thanks for sharing.
I read that somewhere... that the rav4 used a heat pump...
i'll try to find where i made my mistake
?
NC '19 Rav4 Hybrid Limited, Entune 3.0, Adaptive Headlights, Advanced Technology Package
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3,262 Posts
The Rav4h uses a heat pump for "air conditioning". But generally there is free heat available from the anti-freeze used to cool the ICE engine so why not use it.
The RAV4 has an electric resistance heater (like a hair dryer) in the auto HVAC system.
Warm air blows almost immediately.
The parts showing the heating element were posted in this forum a while ago.
It would be a big problem we had to wait for the ICE in this hybrid to run enough to get hot enough to heat the coolant, and then warm the cab.
The heat pump thoughts are, waaaay out there.
Warm air blows almost immediately.
The parts showing the heating element were posted in this forum a while ago.
It would be a big problem we had to wait for the ICE in this hybrid to run enough to get hot enough to heat the coolant, and then warm the cab.
The heat pump thoughts are, waaaay out there.
Here's a previous discussion on the pre-heater.
www.rav4world.com
Does 5th gen RAV4 HV have electric heater
On cold days, does the RAV4 HV have an electric heater system that delivers warm air into the interior when the ICE is still too cold to warm the air?
www.rav4world.com
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495 Posts
When starting a hybrid that's been sitting overnight the gas engine will start. Your tachometer should show this.
The electric motor will not run when the car is stopped, ever. Any heat it produces is waste heat.
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