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Electronic position and speed sensing device

  • US 6,208,131 B1
  • Filed: 05/12/1998
  • Issued: 03/27/2001
  • Est. Priority Date: 11/20/1995
  • Status: Expired due to Fees
First Claim
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1. An engine position and speed sensor system comprising:

  • a circular element rotatably driven about an axis thereof at a speed directly related to engine speed, said circular element having thereon two peripherally spaced position indicators spaced apart by a first angular extent and at least one of said position indicators spaced apart from a marker of top dead center by a second angular extent, wherein said second angular extent is a multiple of said first angular extent;

    sensor means fixed in position with respect to said circular element, the sensor means being adapted to detect the passage therepast of each of said position indicators as the circular element rotates and produce in response to said passage respective electrical signals; and

    means to process the electrical signals to produce information as to the angular position and angular velocity of the circular element.

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