Patents Represented by Attorney, Agent or Law Firm Carlos L. Hanz
  • Diagnostic method for variable compression ratio engine
    Patent number: 6745619
    Abstract: A diagnostic method for a motor vehicle having an internal combustion engine operable in a plurality of compression ratio operating states includes the steps of determining a change in idle air flow of the engine as the engine is operated in selected ones of the compression ratio operating states, and evaluating operation of the internal combustion engine based at least in part on the change in idle air flow.
    Type: Grant
    Filed: October 22, 2001
    Date of Patent: June 8, 2004
    Assignee: Ford Global Technologies, LLC
    Inventor: Michael John Cullen