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GPS-activated exhaust filtration monitoring and control system

  • US 7,987,667 B2
  • Filed: 01/24/2008
  • Issued: 08/02/2011
  • Est. Priority Date: 11/28/2006
  • Status: Expired due to Fees
First Claim
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1. A system for removing particulates from exhaust gas of a vehicle internal combustion engine, comprising:

  • first gas flow means connected to an exhaust of said engine;

    valve means connected to said first gas flow means for normally directing exhaust to a first output, when in a non-activated or deactivated condition, and for directing exhaust to a second output, when in an activated condition;

    second gas flow means connected to said valve means first output for exhausting particulate-containing exhaust to the atmosphere;

    third gas flow means connected to said valve means second output for removing exhaust gas particulates before delivering said exhaust gas to the atmosphere;

    means responsive to starting of said engine for activating said valve means for a predetermined period of time;

    exhaust pressure sensing means for monitoring exhaust backpressure, said sensing means operatively connected to means for indicating the filter medium loading status of said exhaust gas particulate removing means;

    circuit means responsive to said exhaust pressure sensing means for maintaining said valve means continuously in said non-activated condition, when said exhaust backpressure reaches a predetermined level for a predetermined period of time;

    locking means for disabling other system inputs that normally would activate said valve means, when said exhaust backpressure reaches said predetermined level for said predetermined period of time; and

    further comprising means for receiving and storing GPS coordinates of one or more exhaust sensitive areas and activating said valve means when said vehicle comes within a predetermined distance of said exhaust sensitive area(s).

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