초록

In an electric monitoring method and apparatus for a secondary battery, a computer is utilized to monitor abnormal phenomena of a terminal voltage across the battery in relation to a load current flowing from the battery to an electric load circuit.

대표청구항 ▼

Monitoring apparatus for use with a secondary energy source connected to an alternator driven by the prime engine of a vehicle and to an electric load circuit through a conductor, said apparatus comprising: first detecting means for generating a first signal related to the instantaneous terminal vol

Monitoring apparatus for use with a secondary energy source connected to an alternator driven by the prime engine of a vehicle and to an electric load circuit through a conductor, said apparatus comprising: first detecting means for generating a first signal related to the instantaneous terminal voltage across said energy source; second detecting means for generating a second signal related to the instantaneous terminal voltage across said load circuit; signal generating means for selectively generating first and second travel mode signals, respectively indicative of first and second travel modes of the vehicle; means responsive to said first and second electric signals and said first and second travel mode signals for selectively generating one of a first reference value and a second reference value, said first and second reference values being generated from first and second relationships, respectively, with the load current corresponding with the terminal voltage across said load circuit, said first and second reference values being generated when said first and second travel mode signals, respectively, are being generated, said reference values representing a minimum performance for normal functioning of the circuit comprising said energy source, alternator, conductor, and load circuit, said calculating means also including means for comparing a value related to said first signal with said reference values; and warning means for producing a warning signal when the said first signal is lower than said first reference value during said first travel mode and said second reference value during said second travel mode.