×

Evaporative emission system test apparatus and method of testing an evaporative emission system

  • US 20080178660A1
  • Filed: 01/16/2008
  • Published: 07/31/2008
  • Est. Priority Date: 01/16/2007
  • Status: Active Grant
First Claim
Patent Images

1. A test apparatus for an evaporative emission system, said apparatus comprising:

  • a source of pressure adapted to generate a pressure in the vehicle'"'"'s evaporative emission system that is different from the ambient pressure;

    a sensor for sensing the pressure generated in the evaporative emission system; and

    an electronic control unit adapted to control the operation of the source of pressure and to receive signals from said sensor reporting the pressure of the vehicle'"'"'s evaporative emission system over time, said electronic control unit further acting to compare the sensed data with stored data representing standard baseline pressures for vehicles without leaks to determine the presence of a leak in the evaporative emission system.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×