Breaking News
News & Analysis

Tire pressure monitors to reduce CO2 emissons

3/10/2009 04:00 PM EDT
2 comments
NO RATINGS
More Related Links
View Comments: Newest First | Oldest First | Threaded View
Volant Technologies
User Rank
Rookie
re: Tire pressure monitors to reduce CO2 emissons
Volant Technologies   3/18/2009 5:52:51 PM
NO RATINGS
Tire pressure sensing has been known to be notoriously bad. The regulation may bring new and better technology to the scene, but the fundamental problems lie in temperature compensation, sensor drift, and the exact notion of what is considered under-inflated and over-inflated, e.g. should one partially empty out their tires when driving through asphalt in a hot desert during mid-day, add more air when it is very cold outside, and what should be done in wet terrain and sloshy terrain? Many utility vehicles purposely run on low-inflation to have traction in dirt and mud. Most tire pressure sensor systems (TPMS) do not have the level of intelligence required, and are not designed for it. The mandate by NHSTA of DOT was put in place for safety reasons, and came about due to roll-over incidents of the Ford Explorer. It is poorly worded for anything more, and it is unreasonable to expect any more for the price points car manufacturers are asking for from sensor manufacturers. Trucking companies have been looking for good solutions for a long time, but for the last 15 years have still been looking. -- Raj Gupta, Ph.D. Owner, Volant Technologies http://terahz.org

Zr2ee
User Rank
Rookie
re: Tire pressure monitors to reduce CO2 emissons
Zr2ee   3/11/2009 4:35:17 AM
NO RATINGS
of all 3 vehicles in my family that have these TPMS systems none of them have worked right, if i had to option on my truck i would have saved myself the money on them. if they are going to make these systems mandatory for safety they need to make them reliable first

August Cartoon Caption Winner!
August Cartoon Caption Winner!
"All the King's horses and all the KIng's men gave up on Humpty, so they handed the problem off to Engineering."
5 comments
Top Comments of the Week
Like Us on Facebook

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)
EE Times on Twitter
EE Times Twitter Feed
Flash Poll
Radio
LATEST ARCHIVED BROADCAST
David Patterson, known for his pioneering research that led to RAID, clusters and more, is part of a team at UC Berkeley that recently made its RISC-V processor architecture an open source hardware offering. We talk with Patterson and one of his colleagues behind the effort about the opportunities they see, what new kinds of designs they hope to enable and what it means for today’s commercial processor giants such as Intel, ARM and Imagination Technologies.