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Engine control

  • US 6,217,480 B1
  • Filed: 10/21/1997
  • Issued: 04/17/2001
  • Est. Priority Date: 10/21/1996
  • Status: Expired due to Fees
First Claim
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1. An engine control for an internal combustion engine having a plurality of cylinders and driving a load through a transmission having at least a load driving operating condition and a non-load driving operating condition, said engine being operable in an idle condition and a non-idle condition, said engine control including means for operating said engine in a first mode in which all cylinders are operating and a second mode in which at least one of said cylinders is disabled, said engine control arranged to operate said engine in said second mode both when said transmission non-load driving operating condition does not change to a said load driving operating condition and when said engine idle condition has existed for a more than a first predetermined amount of time and for returning the operation to said first mode both when said transmission is changed to said load driving operating condition and when said engine condition has been changed from said idle condition to said non-idle condition for more than a second predetermined amount of time.

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