US 2025/0153581 A1 · MIXED CHEMISTRY BATTERY PACK POWER TRANSFER USING A MULTILEVEL NEUTRAL POINT CLAMPED INVERTER

Abstract

A vehicle system includes a first battery pack connected to a second battery pack via multi-level inverter. A motor is connected to the multi-level inverter. A controller is connected to the motor and the multi-level inverter. The multi-level inverter is a neutral point clamped inverter. The controller includes a memory storing instructions configured to cause the controller to control the multi-level inverter as a direct current (DC)-DC converter such that a circulating current passes through the motor, the first battery pack and the second battery pack.

Claims20

Dependent claims

A vehicle system comprising;

a first battery pack connected to a second battery pack via multi-level inverter;
a motor connected to the multi-level inverter;
and
a controller connected to the motor and the multi-level inverter, the multi-level inverter being a neutral point clamped inverter, the controller including a memory storing instructions configured to cause the controller to control the multi-level inverter as a direct current (DC)-DC converter such that a circulating current passes through the motor, the first battery pack and the second battery pack.

1 more element

A method for transferring power between a first battery pack and a second battery pack of a vehicle system comprising:

causing a controller to control a multi-level inverter as a direct current (DC)-DC converter such that a circulating current passes through the multi-level inverter, a motor, the first battery pack and the second battery pack,
wherein the vehicle system comprises the first battery pack being connected to the second battery pack via multi-level inverter, the motor connected to the multi-level inverter;
and a motor controller connected to the motor and the multi-level inverter, the motor controller including a memory storing instructions configured to cause the vehicle system to implement the method.

Dependencies are inferred from the claim text.

Facts

Application

18/506,448Filed 10 Nov 2023

Published

15 May 2025

Term ends

Not estimatedThe source records don’t support an estimate.

Classification12 codes

B60L 50/51
Using propulsion power supplied by batteries or fuel cells: characterised by AC-motors
B60L 50/66
Using power supplied by batteries: arrangements of batteries
B60L 58/18
For monitoring or controlling batteries: of two or more battery modules
B60L 58/22
Of two or more battery modules: balancing the charge of battery modules

Mixed chemistry battery pack power transfer using a multilevel neutral point clamped inverter

Life of this patent

Mixed chemistry battery pack power transfer using a multilevel neutral point clamped inverter

Life of this patent

Abstract

Claims20