On-line battery monitoring system with defective cell detection capability

A system for on-line monitoring of a plurality of battery cells, comprising:

• controller means for designating at least one battery cell to be monitored;
• multiplexer means responsive to the designation by said controller means for selecting said at least one battery cell to be monitored, for receiving electrical signals from said at least one battery cell, and for providing said electrical signals as an output;
• analog board means for receiving said electrical signals provided by said multiplexer means, said analog board means being responsive thereto for providing an output representing measurement of a parameter of said at least one battery cell;
• and
• a control board connected to said controller means and a load tester connected to said control board, said control board including at least one pulse transformer for providing isolation between said control board and said load tester.

A system for on-line monitoring of a plurality of battery cells, comprising:

• controller means for designating at least one battery cell to be monitored;
• multiplexer means responsive to the designation by said controller means for selecting said at least one battery cell to be monitored, for receiving electrical signals from said at least one battery cell, and for providing said electrical signals as an output;
• analog board means for receiving said electrical signals provided by said multiplexer means, said analog board means being responsive thereto for providing an output representing measurement of a parameter of said at least one battery cell;
• and
• control board means connected to said controller means and responsive to address information for selectively providing at least one of a load test signal and a charging signal;
• and
• load board means connected to said control board means and responsive to said load test signal for initiating a load test and responsive to said charging signal for initiating a charging operation.

A system for on-line monitoring of a plurality of battery cells, comprising:

• controller means for designating at least one battery cell to be monitored;
• multiplexer means responsive to the designation by said controller means for selecting said at least one battery cell to be monitored, for receiving electrical signals from said at least one battery cell, and for providing said electrical signals as an output;
• and
• analog board means for receiving said electrical signals provided by said multiplexer means, said analog board means being responsive thereto for providing an output representing measurement of a parameter of said at least one battery cell;
• said controller means receiving said output, converting said output to measurement data, and displaying said measurement data;
• said analog board means comprising an isolation amplifier for receiving said electrical signals from said at least one battery cell and for providing isolation between said plurality of battery cells and earth ground.