×

Engine protecting system

  • US 5,265,022 A
  • Filed: 02/08/1993
  • Issued: 11/23/1993
  • Est. Priority Date: 10/26/1990
  • Status: Expired due to Term
First Claim
Patent Images

1. A protecting system for an engine having a battery which generates a battery voltage, battery voltage detecting means responsive to said battery voltage for producing a voltage signal, and an electronically controlled fuel injection apparatus for injecting a fuel injection quantity into an intake manifold of said engine, comprising:

  • (A) first judging means responsive to said voltage signal for comparing said voltage signal with a predetermined value and for outputting a first signal when said voltage signal is lower than said predetermined value;

    (B) second judging means responsive to said voltage signal for comparing said voltage signal with a reference value and for outputting a second signal when said voltage signal is lower than said reference value, wherein said reference value is smaller than said predetermined value;

    (C) first control means responsive to said first signal for for detrimentally changing an operating condition of said engine such that said engine does not function properly thereby warning that a malfunction of said engine has occurred; and

    (D) second control means responsive to said second signal for immediately stopping said engine so as to prevent said engine from being damaged.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×