H02K11/25

MOTOR DRIVE DEVICE
20230081701 · 2023-03-16 · ·

A heater-integrated fuse is provided at a neutral point of a stator coil, and when a short-circuit failure of an inverter is detected, a fuse part of the heater-integrated fuse is cut by heating.

MOTOR DRIVE DEVICE
20230081701 · 2023-03-16 · ·

A heater-integrated fuse is provided at a neutral point of a stator coil, and when a short-circuit failure of an inverter is detected, a fuse part of the heater-integrated fuse is cut by heating.

Stator with a temperature detection unit for an electric motor

A stator for an AC motor, includes windings of a first layer, which extend over a first region of the stator and are connectable to a first phase, and windings of a second layer, which extend over a second region of the stator and are connectable to a second phase, wherein the first region is offset relative to the second region and at least one overlap region is formed which is smaller than the individual regions, and wherein a temperature detection unit is arranged in the overlap region and is designed to measure the temperature of the windings in the overlap region.

Stator with a temperature detection unit for an electric motor

A stator for an AC motor, includes windings of a first layer, which extend over a first region of the stator and are connectable to a first phase, and windings of a second layer, which extend over a second region of the stator and are connectable to a second phase, wherein the first region is offset relative to the second region and at least one overlap region is formed which is smaller than the individual regions, and wherein a temperature detection unit is arranged in the overlap region and is designed to measure the temperature of the windings in the overlap region.

ELECTRIC MACHINE FOR HYBRID/ELECTRIC VEHICLE

A vehicle includes a battery, an electric machine, a thermistor, and a controller. The electric machine is configured to draw electrical power from the battery to propel the vehicle. The electric machine has a rotor and a stator. The stator has a core, interconnected hairpins, and a neutral bar. The core defines slots. The interconnected hairpin windings are arranged within the slots and are arranged to form a plurality of electrical phases. The neutral bar is connected to each of the electrical phases and defines an orifice. The thermistor is disposed within the orifice and is configured to sense a temperature of the electric machine. The controller is programmed to control a power output of the electric machine based on the temperature of the electric machine.

ELECTRIC MACHINE FOR HYBRID/ELECTRIC VEHICLE

A vehicle includes a battery, an electric machine, a thermistor, and a controller. The electric machine is configured to draw electrical power from the battery to propel the vehicle. The electric machine has a rotor and a stator. The stator has a core, interconnected hairpins, and a neutral bar. The core defines slots. The interconnected hairpin windings are arranged within the slots and are arranged to form a plurality of electrical phases. The neutral bar is connected to each of the electrical phases and defines an orifice. The thermistor is disposed within the orifice and is configured to sense a temperature of the electric machine. The controller is programmed to control a power output of the electric machine based on the temperature of the electric machine.

ELECTRIC MACHINE FOR HYBRID/ELECTRIC VEHICLE

A vehicle includes a battery, an electric machine, a thermistor, and a controller. The electric machine is configured to draw electrical power from the battery to propel the vehicle. The electric machine has a rotor and a stator. The stator has a core defining a plurality of slots and windings arranged within the slots. The thermistor is disposed within a first of the slots between first and second axial ends of the core and is configured to measure a temperature of the electric machine. The controller is programmed to control a power output of the electric machine based on the temperature of the electric machine.

ELECTRIC MACHINE FOR HYBRID/ELECTRIC VEHICLE

A vehicle includes a battery, an electric machine, a thermistor, and a controller. The electric machine is configured to draw electrical power from the battery to propel the vehicle. The electric machine has a rotor and a stator. The stator has a core defining a plurality of slots and windings arranged within the slots. The thermistor is disposed within a first of the slots between first and second axial ends of the core and is configured to measure a temperature of the electric machine. The controller is programmed to control a power output of the electric machine based on the temperature of the electric machine.

DISPLAY OF ROTOR AND STATOR CONCENTRICITY CHANGES

An asset management system can be configured to receive at least a portion of a plurality of data and to determine a concentricity of at least one of the rotor or stator. The rotor or stator concentricity can be a vector including an amplitude and an angle and can characterizes a difference between a location of a predetermined center point and a location of a geometric center point of the rotor or stator, respectively. The system can also receive a concentricity vector selection including at least one of the rotor concentricity vector or the stator concentricity vector and can receive a selection of one of the correlated operating parameters. A plot format selection can be received and a graphical user interface (GUI) including a plot can be generated. The plot can include a portion of the selected concentricity vector as a function of the selected correlated operating parameter.

DISPLAY OF ROTOR AND STATOR CONCENTRICITY CHANGES

An asset management system can be configured to receive at least a portion of a plurality of data and to determine a concentricity of at least one of the rotor or stator. The rotor or stator concentricity can be a vector including an amplitude and an angle and can characterizes a difference between a location of a predetermined center point and a location of a geometric center point of the rotor or stator, respectively. The system can also receive a concentricity vector selection including at least one of the rotor concentricity vector or the stator concentricity vector and can receive a selection of one of the correlated operating parameters. A plot format selection can be received and a graphical user interface (GUI) including a plot can be generated. The plot can include a portion of the selected concentricity vector as a function of the selected correlated operating parameter.