Engine protecting system
First Claim
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.
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Accused Products
Abstract
A system for protecting an engine equipped with an electronically controlled fuel injection apparatus, in which a battery voltage is detected. When the detected battery voltage is smaller than a predetermined reference value, performance of the engine is degraded, and when the detected battery voltage is smaller than a reference value, that is smaller than the predetermined value, the engine is stopped.
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Citations
9 Claims
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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:
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(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 Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification