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US 12,009,715 B2Granted
Electronic gear changing multifunction inverter
AssigneeGM Global Technology Operations LLC
InventorsRashmi Prasad, Chandra S. Namuduri, Lei Hao, Suresh Gopalakrishnan
Life of this patent
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Abstract
A method includes: selectively actuating switches of an inverter module and first, second, third, and fourth switches of a motor; and charging a battery with power from a charger using at least one of first, second, and third stator windings of the motor, the battery having a first voltage and being electrically connected in parallel with the inverter module, and the charger having a second voltage that is less than the first voltage.
Claims20
A system comprising:
- a motor including:
- a first stator winding including first and second stator winding portions electrically connected in series;
- a second stator winding including third and fourth stator winding portions electrically connected in series;
- a third stator winding including fifth and sixth stator winding portions electrically connected in series;
- a first switch electrically connected between (a) a first node between the first and second stator winding portions and (b) a second node between the third and fourth stator winding portions;
- a second switch electrically connected between (a) the second node between the third and fourth stator winding portions and (b) a third node between the fifth and sixth stator winding portions;
- a third switch electrically connected between the second stator winding portion and a fourth node connected to the fourth stator winding portion;
- and
- a fourth switch electrically connected between the sixth stator winding portion and the fourth node;
- an inverter module including first, second, and third phases that are electrically connected to the first, second, and third stator windings, respectively;
- a battery that has a first voltage and that is electrically connected in parallel with the inverter module;
- a charger that is electrically connected to the motor and that has a second voltage that is less than the first voltage;
- and
- a motor control module configured to selectively actuate switches of the inverter module and the first, second, third, and fourth switches of the motor and thereby charge the battery with power from the charger using at least one of the first, second, and third stator windings of the motor.
11 more elements
A method comprising:
- selectively actuating switches of an inverter module and first, second, third, and fourth switches of a motor;
- and
- charging a battery with power from a charger using at least one of first, second, and third stator windings of the motor,
- the motor including:
- the first stator winding including first and second stator winding portions electrically connected in series;
- the second stator winding including third and fourth stator winding portions electrically connected in series;
- the third stator winding including fifth and sixth stator winding portions electrically connected in series;
- the first switch electrically connected between (a) a first node between the first and second stator winding portions and (b) a second node between the third and fourth stator winding portions;
- the second switch electrically connected between (a) the second node between the third and fourth stator winding portions and (b) a third node between the fifth and sixth stator winding portions;
- the third switch electrically connected between the second stator winding portion and a fourth node connected to the fourth stator winding portion;
- and
- the fourth switch electrically connected between the sixth stator winding portion and the fourth node;
- the inverter module including first, second, and third phases that are electrically connected to the first, second, and third stator windings, respectively;
- the battery having a first voltage and being electrically connected in parallel with the inverter module;
- and
- the charger having a second voltage that is less than the first voltage.
13 more elements
Dependencies are inferred from the claim text.