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	<title>Some stuff &#187; christopher jensen</title>
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		<title>Toyota recall</title>
		<link>https://blog.yhuang.org/?p=236</link>
		<comments>https://blog.yhuang.org/?p=236#comments</comments>
		<pubDate>Wed, 27 Jan 2010 16:03:15 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Uncategorized]]></category>
		<category><![CDATA[christopher jensen]]></category>
		<category><![CDATA[failure state]]></category>
		<category><![CDATA[Floor]]></category>
		<category><![CDATA[floor mat]]></category>
		<category><![CDATA[gas pedals]]></category>
		<category><![CDATA[outcome]]></category>
		<category><![CDATA[precedence]]></category>
		<category><![CDATA[Smart]]></category>
		<category><![CDATA[Solve]]></category>
		<category><![CDATA[toyota recall]]></category>

		<guid isPermaLink="false">http://scripts.mit.edu/~zong/wpress/?p=236</guid>
		<description><![CDATA[So Toyota thinks it has a drive-by-wire software bug now. And it is just now installing the &#8220;smart gas pedal.&#8221; What is the &#8220;smart gas pedal&#8221; and what&#8217;s &#8220;smart&#8221; about it, you ask? Watch&#8230; Smart Gas Pedals May Solve Floor-Mat Problem By Christopher Jensen Some automakers – primarily European — are using an unusual method [...]]]></description>
			<content:encoded><![CDATA[<p>So Toyota <a href="http://articles.latimes.com/2009/nov/29/business/la-fi-toyota-throttle29-2009nov29">thinks</a> it has a drive-by-wire software bug now.</p>
<p>And it is just now installing the &#8220;smart gas pedal.&#8221; What is the &#8220;smart gas pedal&#8221; and what&#8217;s &#8220;smart&#8221; about it, you ask? Watch&#8230;</p>
<blockquote><p>
<a href="http://wheels.blogs.nytimes.com/2009/10/07/smart-gas-pedals-may-solve-floor-mat-problem/">Smart Gas Pedals May Solve Floor-Mat Problem</a></p>
<p>By Christopher Jensen</p>
<p>Some automakers – primarily European — are using an unusual method to reduce the chances of unintended acceleration from something like a floor mat getting tangled up with the accelerator: smart gas pedals.</p>
<p>If the vehicle is moving and both the gas and brake pedal are being pushed at the same time the computer tells the engine to ignore the gas pedal.</p>
<p>“It is an additional safety feature,” said Thomas Plucinsky, a BMW spokesman. “The brake takes precedence.”
</p></blockquote>
<p>Oh, really, the brake takes precedence. Wow.</p>
<p>I thought it was obvious and necessary that the design of any system with safety concerns should <a href="?p=192">produce a safe outcome</a> in the &#8220;failure&#8221; state rather than an unspecified outcome. Guess I was wrong.</p>
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