Windshield heater design causing 'starry' nighttime lights? - Page 2 - Jaguar I-Pace EV400 Forum
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post #11 of 32 (permalink) Old 01-12-2019, 08:41 AM
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Originally Posted by epirali View Post
This is a good point for an EV, but considering one of my many complains about RR was the inclusion of the exact same "feature" by default in some of their cars (ICE) I think its one of those corporate decisions pre-EV that just happens to be beneficial for the I-Pace (not a volitional design choice).

When I looked at the RR Sport for wife besides rejecting it for many other reasons we had the EXACT same discussion about deleting the heated windshield or replacing with non heated and was told the same as with the I-Pace, no can do. And this was 4 years ago.
Because of the FMVSS defogging reg, it might be because without the wires, you need a different defogging system even with an ICE. And that apparently is an "either/or" system.

While the wires freak me out when I look for them, that's really an indicator I'm driving badly. They vanish when you look at the correct distance, about 1/8+ mile down the road. I normally scan so far away that the car in front of me is a blur, that is outside my 3° cone of high resolution. This has saved me numerous times in situations such as road debris, radar traps, people running red lights, etc. In these situations, if you first see the threat at 100', you are not going to be happy.

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post #12 of 32 (permalink) Old 01-13-2019, 03:10 PM
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I noticed this on the way home last night after picking up the car. I don't have a way to compare (hard to see what another person sees without your eyes distorting things differently than their's), but I wonder if the starburst pattern is worse because I had vision correction done a decade ago (still the best money I've ever spent, even with the annoyance of starburst a halos around certain wavelengths of light).
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post #13 of 32 (permalink) Old 01-14-2019, 02:12 AM
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I have not noticed a problem with the windshield at night. Every once in a while, during the day, it looks like there's an odd pattern of dust on the windshield, but that's not enough for me to reject the feature.
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post #14 of 32 (permalink) Old 01-14-2019, 02:40 AM
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I noticed this on the way home last night after picking up the car. I don't have a way to compare (hard to see what another person sees without your eyes distorting things differently than their's), but I wonder if the starburst pattern is worse because I had vision correction done a decade ago (still the best money I've ever spent, even with the annoyance of starburst a halos around certain wavelengths of light).
My wife had laser correction, and the 'starry' night vision for her applies to all cars. Hence why she drives a car with thermal imaging and directional headlights since many of our streets do not have street lights.

Seems anytime I'm driving fast, it disappears. So I just haul arse everywhere I go.
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post #15 of 32 (permalink) Old 01-14-2019, 05:34 AM
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Seems anytime I'm driving fast, it disappears. So I just haul arse everywhere I go.
Well obviously if you go fast enough the speed of light shift factors come into play and make the wires less visible. A perfectly REASONABLE solution in my opinion...
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post #16 of 32 (permalink) Old 01-14-2019, 04:35 PM
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In a mild climate I specifically avoided this option. I assume the defrost setting will work good enough if I visit the snow.
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post #17 of 32 (permalink) Old 01-15-2019, 01:51 AM
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In a mild climate I specifically avoided this option. I assume the defrost setting will work good enough if I visit the snow.
SoCal, a heated windshield is overkill. In our norcal winter, in a canyon, we sometimes get ice on the windshield when parked outside. I don't expect to park it outside much, but things happen, ya know?

In Hawaii, it got so humid during one rain that defrosting didn't do a thing to the windshield. A heater would have been nice.
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post #18 of 32 (permalink) Old 01-17-2019, 01:12 PM Thread Starter
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It seems VW has developed a very eloquent wire-less solution, one that 'warms the wipers' too!
https://www.volkswagen-newsroom.com/...olkswagen-1213
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post #19 of 32 (permalink) Old 01-17-2019, 01:22 PM
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I don’t know how much the defroster on the i-Pace uses, but 500w (1/2 kw) seems high.
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post #20 of 32 (permalink) Old 01-18-2019, 02:10 AM
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I drove the car for the first time at night tonight and I do notice it - mostly when there is a car coming at me and my eyes have to focus because of the light.
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