HOME  |  NEWS  |  BLOGS  |  MESSAGES  |  FEATURES  |  VIDEOS  |  WEBINARS  |  INDUSTRIES  |  FOCUS ON FUNDAMENTALS
  |  REGISTER  |  LOGIN  |  HELP
Comments
View Comments: Newest First|Oldest First|Threaded View
<<  <  Page 6/7  >  >>
OLD_CURMUDGEON
User Rank
Platinum
Re: TOYOTA HIGHLANDER climate control, etal.
OLD_CURMUDGEON   2/23/2012 1:41:40 PM
@VIRAGOMAN:  Tampa / St. Pete / Clearwater  area ain't no joy when it comes to HUMIDITY either!  So, I feel your pain!!!

By the way, this 2010 CAMRY is SO smart that when you turn the dial for max. COLD on the TEMP knob, it automatically puts the A/C on in RECIRC mode, whether you want it or not!  But, when you turn the knob a little to the c.w. position, it does NOT turn the A/C off.  You must then press the center of the other knob to turn it off.  There's so much about the 2010 that I dislike, it would take a tome to describe all its "wonderful" engineering enhancements!!!!!

ViragoMan
User Rank
Silver
Re: TOYOTA HIGHLANDER climate control, etal.
ViragoMan   2/23/2012 1:22:51 PM
NO RATINGS
Wow. Guess I'll hold onto my 2002 196k mi. 5-speed manual Camry. Only issue with cabin air selection is automatic cancellation of recirculation mode when main selector is changed. Pulling outside air in during a rainstorm in Houston is counterproductive, so I always push the recirculate button again.

Rob Spiegel
User Rank
Blogger
Re: Another pointless automation
Rob Spiegel   2/23/2012 1:11:39 PM
Interesting, Tim. A small item like that can help determine whether or not you like a particular car. This is a good example of a change to digital just for the sake of digital. You actually lose a degree of control with the upgrade to digital.

roddalitz
User Rank
Gold
Re: Another pointless automation
roddalitz   2/23/2012 10:39:54 AM
NO RATINGS
"Ratchets" - I think you mean detents? Ratchet is a one-way mechanism.

bob from maine
User Rank
Platinum
Climate Control
bob from maine   2/23/2012 10:29:06 AM
NO RATINGS
Makes sense to me. From a human standpoint, dry 90 degree air is more comfortable than humid 80 degree air. Thus re-circ passes cabin air repeatedly over the coils to remove humidity. Once the air is releatively dry, outside air can be brought-in dehumidified and cooled. For winter, when in re-circ - cabin air picks up moisture from the occupants and floor mats and is then re-directed against the cold windows creating frost. Taking outside air in winter draws in dry air which is heated and circulated. Well designed climate control in high-end cars blends cooled and heated air and keeps cabin air circulating continuously, they sense humidity, inside/outside temperature and adjust the controls as necessary, less well designed "temperature control" systems either heat or cool only and when the 'set' temp is achieved, the fan shuts down or goes to the lowest speed thus cabin air movement virtually ceases. There is a reason Mercedes cost more than Toyotas.

OLD_CURMUDGEON
User Rank
Platinum
TOYOTA HIGHLANDER climate control, etal.
OLD_CURMUDGEON   2/23/2012 10:28:49 AM
NO RATINGS
This "problem" is not isolated to the HIGHLANDER.  It also rears its ugly head in the CAMRY.  It's ironic when reading this blog, and the comments that follow, that one should take note of the recent TOYOTA radio advertisements that have been running for several months in my local market........  The 2012 TOYOTA CAMRY..... THE MOST TECHNILOGICALLY ADVANCED CAMRY YET! 

Woe is me!  I wish I still had my 2006 Camry.  It was relatively simple; I could adjust the various control functions myself, all WITHOUT the aid of a microcontroller or two.  My 2010 CAMRY replacement can't hold a candle to the 2006 model!  I shudder to think of the next time I'm in the market for a replacement. 

GlennA
User Rank
Gold
Re: Seems right to me
GlennA   2/23/2012 9:40:01 AM
NO RATINGS
In winter I have passed cars with every window fogged up.  I use the outside air setting in cold weather - I guess the occupants of the fogged up car didn't have an experienced driving instructor.  In summer, I open all of the windows and set the A/C to outside air initially.  After the hot cabin air, and the hot air in the vent system, is flushed, then I change to recirculate.

I agree with the final comment that the human has better reasoning than the canned program.

Gusman
User Rank
Iron
Re: Seems right to me
Gusman   2/23/2012 9:39:36 AM
NO RATINGS
I agree-the logic is correct, for the reasons antedeluvian elucidated-even though his  name is mis-spelled..  Humidity control is one big reason for recirculation when beginning the process, as it is much easier to cool dehumidified air than humid, and less humid air doesn't feel as uncomfortable, leading to more comfort sooner.  This also is very important to defog the windows quicker in cooler temperature situations.  For the technical Luddites, there is always an override capability.  Undoubtedly, elements of their blood lines flamed the demise of manual spark advance and want it back!  LOL

etmax
User Rank
Gold
Re: Counter-intuitive design
etmax   2/23/2012 9:33:18 AM
NO RATINGS
Rob kindly published my views on my monkey designed Toyota a while back, and while I listed lots of issues then, I completely forgot about my climate control issues which were the same as these. It seems like they don't have someone on their design team that understands thermal management. They also didn't understand lighting, as the vehicle had 2 map lights but no light baffle between them, such that the pasenger's map light affected the driver. It also had one of those lovely sunglass holders in the roof lining that was too small for a pair of adult sunglasses.

Tim
User Rank
Platinum
Re: Another pointless automation
Tim   2/22/2012 7:12:10 PM
NO RATINGS
I had an Oldsmobile Achieva that had a volume control knob with ratchets on it that required pre-determined intervals ofvolume control. The best I could do was get the volume to a point that it was either a little bit too soft or a little too loud. This was just one reason that I did not care for that car.

<<  <  Page 6/7  >  >>


Partner Zone
Latest Analysis
New manufacturing is changing more than just the plant floor. It's changing how manufacturers do business.
Made By Monkeys highlights products that somehow slipped by the QC cops.
Venture capital guru Steve Vassallo looks for companies that think about design, not just technology for technology's sake.
A German 3D printing company has released a large-volume 3D printer based on open-source RepRap technology and aimed at providing an affordable high-capacity plastic-filament printer for industrial users.
Factory floor engineers may soon be able to operate machinery and monitor equipment status simply by tapping their eyeglasses.
More:Blogs|News
Design News Webinar Series
9/10/2014 11:00 a.m. California / 2:00 p.m. New York
7/23/2014 11:00 a.m. California / 2:00 p.m. New York
7/17/2014 11:00 a.m. California / 2:00 p.m. New York
6/25/2014 11:00 a.m. California / 2:00 p.m. New York
Quick Poll
The Continuing Education Center offers engineers an entirely new way to get the education they need to formulate next-generation solutions.
Sep 22 - 26, MCU Software Development A Step-by-Step Guide (Using a Real Eval Board)
SEMESTERS: 1  |  2  |  3  |  4  |  5  |  6


Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.
Next Class: September 30 - October 2
Sponsored by Altera
Learn More   |   Login   |   Archived Classes
Twitter Feed
Design News Twitter Feed
Like Us on Facebook

Sponsored Content

Technology Marketplace

Copyright © 2014 UBM Canon, A UBM company, All rights reserved. Privacy Policy | Terms of Service