Configurable fault and control safety architecture for inverter system
AssigneeDelphi Technologies IP Limited
InventorsLokesh GONA, Clinton W. ERICKSON, Mitchell S. COHEN, John Mark DIKEMAN, Peter A. LAUBENSTEIN, Mark W. GOSE
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Abstract
A system for a direct-current (DC) to alternating current (AC) inverter includes: a memory configured to store instructions; a main microcontroller configured to execute the stored instructions to control the inverter during non-timing-critical operation; and a safety controller configured to control the inverter during timing-critical operation.
Claims20
A system for a direct-current (DC) to alternating current (AC) inverter, the system comprising:
- a memory configured to store instructions;
- a main microcontroller configured to execute the stored instructions to control the inverter during non-timing-critical operation;
- and
- a safety controller configured to control the inverter during timing-critical operation.
A method for controlling a direct-current (DC) to alternating current (AC) inverter, the method comprising:
- executing, by a main microcontroller of the inverter, instructions stored in a memory of the inverter to control the inverter during non-timing-critical operation;
- and
- controlling, by a safety controller of the inverter, the inverter during timing-critical operation.
A system for a direct-current (DC) to alternating current (AC) inverter, the system comprising:
- a memory configured to store instructions;
- a safety controller configured to control the inverter;
- a main microcontroller configured to execute the stored instructions during non-timing-critical operation to output a signal to the safety controller;
- and
- a main microcontroller watchdog configured to monitor a health of the main microcontroller and output the health of the main microcontroller to the safety controller,
- wherein the safety controller is configured to output a PWM signal to a switch group of the inverter based on the signal from the main microcontroller, the health of the main microcontroller, and one or more inputs from the inverter.
Dependencies are inferred from the claim text.