Systems and methods for parameter drift correction for inverter for electric vehicle
AssigneeBorgWarner US Technologies LLC
InventorsSeyed R. Zarabadi, Mark Wendell Gose, Peter Allan Laubenstein
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Abstract
A system comprises: an inverter configured to convert DC power from a battery to AC power to drive a motor, wherein the inverter includes: a power switch including a drain terminal, a source terminal, and a gate terminal; and one or more controllers configured to detect a voltage from the gate terminal to the source terminal of the power switch as a gate-to-source voltage, and control a gate control signal to the gate terminal based on the detected gate-to-source voltage.
Claims20
A system comprising an inverter configured to convert DC power from a battery to AC power to drive a motor, wherein the inverter includes:
- a high-speed gate-to-source voltage detector connected to a gate terminal and a source terminal of a power switch, the high-speed gate-to-source voltage detector configured to detect a gate-to-source voltage of the power switch.
A system including a power module for an inverter for an electric vehicle, the power module comprising:
- a power switch including a drain terminal, a source terminal, and a gate terminal, the power switch configured to control a flow of current between a drain connection of the power module and a source connection of the power module;
- and
- one or more controllers configured to detect a gate-to-source voltage between the gate terminal and the source terminal of the power switch, and control a gate control signal to the gate terminal based on the detected gate-to-source voltage.
A system comprising one or more controllers configured to:
- detect a gate-to-source voltage based on a gate voltage signal and a source voltage signal;
- and
- generate a gate control signal for a gate terminal of a power switch, based on a gate command and the gate-to-source voltage.
Dependencies are inferred from the claim text.