Posted by Edd in KY on December 02, 2009 at 11:06:01 from (75.90.148.58):
This could get really ugly, and very expensive for the Big T. As any tractor or computer guy knows, it is often difficult to find a gremlin in the wiring.
The Los Angeles Times on Saturday again reported that the onboard computers and electrical controls, installed in most vehicles built by Toyota since 2002, may cause throttles to race out of control, causing runaway cars and trucks.
But the automaker, whose U.S. headquarters is in Torrance, insists the problem with 4.26 million cars and trucks is floor mats that the company says can jam under gas pedals. An off-duty California Highway Patrol officer and three family members were killed last summer near San Diego in a runaway Lexus, prompting public scrutiny.
The Times says the problem is much more serious than jammed carpeting, and notes that thousands of federal traffic safety incident reports show sudden acceleration reports shot up almost immediately after Toyota began installing "drive-by-wire" system that use sensors, microprocessors and electric motors to connect the driver's foot to the engine, instead of the traditional steel cable.
The Times says electronic-only throttles are susceptible to electronic interference that can trick an engine into thinking the driver has floored the ignition pedal, and that power braking on Toyota and Lexus vehicles diminishes if an engine is racing at high speed.
"With the electronic throttle, the driver is not really in control of the engine," Antony Anderson, a UK-based electrical engineering consultant told The Times. "You are telling the computer, will you please move the throttle to a certain level and the computer decides if it will obey."
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Today's Featured Article - New Hitches For Your Old Tractor - by Chris Pratt. For this article, we are going to make the irrational and unlikely assumption that you purchased an older tractor that is in tip top shape and needs no immediate repairs other than an oil change and a good bath. To the newcomer planning to restore the machine, this means you have everything you need for the moment (something to sit in the shop and just look at for awhile while you read the books). To the newcomer that wants to get out and use the machine for field work, you may have already hit a major roadblock. That is the dreaded "proprietary hitch". With the exception of the
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