Toyota Rav4 EV Forum

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 Post subject: Re: 6 Years in our Rav4 EV
PostPosted: Sun May 26, 2019 4:07 pm 
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Joined: Tue Jun 06, 2017 3:55 pm
Posts: 13
Usually these types of forums attract the problem vehicles looking for solutions. I'm not here much mostly since our '12 Rav EV at 62K miles has been completely problem free, everything original and works fine! Guess we might be in the minority but the car is a great vehicle love it and use it daily. We also own an original 2011 Leaf which got a new battery in 2016 and I just used to go into LA which for me is a 85 mile round trip. So either we are extremely lucky with EVs or maybe we just don't expect as much as others. Granted range is still an issue so we also own a 96 Diesel Suburban for those long trips where I don't expect to stop till I get into Utah or just need to tow something.
In the RAV we will use it to go to Palm Springs 129 miles or Big Bear 109 miles and 6k elevation gain. It does fine at both beyond that distance I'll take a diesel (burns biodiesel which is carbon neutral). My only RAV rant is radio missing analog knobs or some other way to control volume and a charge timer that is random and completes either too early or too late and yes the induction motor is way more whiny than the permanent magnet motors like a leafs. Our motor has not developed any grinding sounds or such guess our bearings have held up better than others. My DC/DC, heater and charger also work as well as day one and hopefully keep going! we'll see.

Steve
96 Suburban BioDiesel 6.5L
11 Leaf
12 Rav


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 Post subject: Re: 6 Years in our Rav4 EV
PostPosted: Wed May 29, 2019 2:25 am 
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Joined: Sat Mar 23, 2013 4:42 pm
Posts: 43
Location: Littleton, CO
2012 purchased in March of 2013. We are at 72k miles, no problems at all other than the 12v battery killing over after 3 years. Replaced with an Odyssey 35-PC1400T and solid ever since.
Motor makes a "Jetsons" car like noise so Im not sure if that is normal, but its been making that sound for as long as I have been paying attention to it. Have extended warranty until March 2020.
Wife's primary car. I have a Model 3.

Still nothing on the market that competes with this thing in terms of space and usability... sure the iPace, e-Tron, and Kona/Niro have more range but RAV4 EV has more cargo room than all of them and feels like a small SUV, not just a hatchback. Model X is nice but too expensive.


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 Post subject: Re: 6 Years in our Rav4 EV
PostPosted: Wed May 29, 2019 3:33 am 
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Joined: Sun Jul 21, 2013 12:00 am
Posts: 96
Spiffster wrote:
Motor makes a "Jetsons" car like noise so Im not sure if that is normal, but its been making that sound for as long as I have been paying attention to it.


Good chance it is not normal. My car made a similar noise and needed a motor replacement. That warranty could come in handy, might want to take it into the dealer for a test.

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 Post subject: Re: 6 Years in our Rav4 EV
PostPosted: Wed May 29, 2019 7:55 pm 
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Joined: Tue Jun 06, 2017 3:55 pm
Posts: 13
A lot of the motor makes noise are for two reasons IMHO

1. RAV EV is only Tesla Vehicle with large traction motor up front so much closer to driver with little in the way between our ears and the motor, we hear a lot more from the traction system than in a standard Tesla Model X or S which has the large traction motor in the rear where the sound is way more insulated and distant and moves behind the car not up to the driver.

2. The motor in a Tesla is an ACIM or AC induction motor. These are notoriously noise and make space age sounds do to the changing and reversing induction currents induced in the rotor. These induced currents can exit the rear bearing and induce current wear which becomes bearing noise but I'm not talking about that just the normal noises in and ACIM motor.

If you drive your car and not in regen mode but back off on the accelerator then the induction noises usually go away fast. If you have bearing wear induced noise then this won't help and the noise is not related to the accelerator pressure or lack thereof but just to the speed of motor rotation.

Steve
'12 RAV EV
'11 Leaf SL
'96 GMC Suburban 6.5l


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 Post subject: Re: 6 Years in our Rav4 EV
PostPosted: Fri May 31, 2019 6:29 pm 
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Joined: Wed Nov 14, 2012 9:50 pm
Posts: 4101
Location: San Diego
n3ckf wrote:
did you have a new battery sitting around? i might someday want to replace the one in mine (although my degredation is only about 18-20% now). However now that i have the Tesla i dont do long trips in the Rav4EV anymore.


We have batteries for RAV4 EV.

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 Post subject: Re: 6 Years in our Rav4 EV
PostPosted: Wed Jun 05, 2019 4:38 pm 
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Joined: Mon Jun 03, 2013 6:43 am
Posts: 284
Location: Redwood City, CA
hbrav wrote:
The motor in a Tesla is an ACIM or AC induction motor. These are notoriously noise and make space age sounds do to the changing and reversing induction currents induced in the rotor. These induced currents can exit the rear bearing and induce current wear which becomes bearing noise but I'm not talking about that just the normal noises in and ACIM motor.

If you drive your car and not in regen mode but back off on the accelerator then the induction noises usually go away fast. If you have bearing wear induced noise then this won't help and the noise is not related to the accelerator pressure or lack thereof but just to the speed of motor rotation.


This fits the description of my car: no obvious motor bearing noise, but the audible component of the applied AC induction power has gotten louder in the past 1 - 2 years.

Have other forum members been able to get a motor replacement under warranty for similar conditions?

I made an appointment to take my car in for evaluation and would appreciate knowing what to expect. I will have to pay about $200 for the dealer to take the data (audio recording I believe) and send it to Toyota for analysis. This is waived if Toyota determines that a warranty repair is justified.

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 Post subject: Re: 6 Years in our Rav4 EV
PostPosted: Wed Jun 05, 2019 10:53 pm 
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Joined: Thu Jan 17, 2013 11:13 pm
Posts: 1806
Location: Los Altos, CA
tgreene wrote:
hbrav wrote:
The motor in a Tesla is an ACIM or AC induction motor. These are notoriously noise and make space age sounds do to the changing and reversing induction currents induced in the rotor. These induced currents can exit the rear bearing and induce current wear which becomes bearing noise but I'm not talking about that just the normal noises in and ACIM motor.

If you drive your car and not in regen mode but back off on the accelerator then the induction noises usually go away fast. If you have bearing wear induced noise then this won't help and the noise is not related to the accelerator pressure or lack thereof but just to the speed of motor rotation.


This fits the description of my car: no obvious motor bearing noise, but the audible component of the applied AC induction power has gotten louder in the past 1 - 2 years.

Have other forum members been able to get a motor replacement under warranty for similar conditions?

I made an appointment to take my car in for evaluation and would appreciate knowing what to expect. I will have to pay about $200 for the dealer to take the data (audio recording I believe) and send it to Toyota for analysis. This is waived if Toyota determines that a warranty repair is justified.

I don't know where you're taking your car, but Magnussen's Palo Alto did not charge me anything for the drive unit noise evaluation.

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 Post subject: Re: 6 Years in our Rav4 EV
PostPosted: Thu Jun 06, 2019 9:30 pm 
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Joined: Mon Jun 03, 2013 6:43 am
Posts: 284
Location: Redwood City, CA
miimura wrote:
tgreene wrote:
hbrav wrote:
The motor in a Tesla is an ACIM or AC induction motor. These are notoriously noise and make space age sounds do to the changing and reversing induction currents induced in the rotor. These induced currents can exit the rear bearing and induce current wear which becomes bearing noise but I'm not talking about that just the normal noises in and ACIM motor.

If you drive your car and not in regen mode but back off on the accelerator then the induction noises usually go away fast. If you have bearing wear induced noise then this won't help and the noise is not related to the accelerator pressure or lack thereof but just to the speed of motor rotation.


This fits the description of my car: no obvious motor bearing noise, but the audible component of the applied AC induction power has gotten louder in the past 1 - 2 years.

Have other forum members been able to get a motor replacement under warranty for similar conditions?

I made an appointment to take my car in for evaluation and would appreciate knowing what to expect. I will have to pay about $200 for the dealer to take the data (audio recording I believe) and send it to Toyota for analysis. This is waived if Toyota determines that a warranty repair is justified.

I don't know where you're taking your car, but Magnussen's Palo Alto did not charge me anything for the drive unit noise evaluation.



I'm also taking my car to Magnussen's Toyota in Palo Alto. They charged my work colleague $185 to record and diagnose his motor whine last year when Toyota declined to replace it under warranty. My understanding is that they will not charge this fee if Toyota deems to replace the motor under warranty.

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 Post subject: Re: 6 Years in our Rav4 EV
PostPosted: Sat Jun 08, 2019 12:00 pm 
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Joined: Wed Nov 14, 2012 9:50 pm
Posts: 4101
Location: San Diego
When a dealer is charging you money upfront to diagnose a warranty repair, it’s merely padding their pockets. Why are you paying at all?

Of course, the easy answer is that many / most people will just pay. I would take the car elsewhere, and let another dealer who would prefer the warranty money from Toyota.

After many tens of thousands of dollars of warranty repair, I can assure you that I never paid a single dollar. If somebody’s asked, I’d take the car elsewhere.

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QC Charge
1780-104 La Costa Meadows Drive
San Marcos, California 92078 USA
tony@QCcharge.com
www.QCcharge.com
Twitter: QCPower
1-844-EV-PARTS
1-844-387-2787
1-760-798-0342 Office
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 Post subject: Re: 6 Years in our Rav4 EV
PostPosted: Sun Jun 09, 2019 1:25 am 
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Joined: Mon Jun 03, 2013 6:43 am
Posts: 284
Location: Redwood City, CA
I was hoping to get at least one reply germane to the question - has anybody here gotten their motor replaced under warranty for excessive low-speed (5 - 30 mph) noise that occurred only when the accelerator was applied? About how loud was it? I'd appreciate hearing people's experience with similar issues.

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