Back to results
US 2022/0190607 A1Published application
Battery System
AssigneeApple Inc.
InventorsPhilip W. Juang, Christopher D. Laws, Brandon Pierquet, Giridhar N. Murching, William A. Braff
Life of this patent
Estimating the term…
Abstract
A system includes a first bus, a second bus, a first battery that includes a first plurality of cells, and a second battery that includes a second plurality of cells, wherein the second battery is connected to the second bus. A first converter connects the high-voltage battery to the first bus. A second converter connects the first bus to the second bus. A controller is configured to control operation of the first converter and the second converter.
Claims27
A system, comprising:
- a first bus;
- a second bus;
- a first load that is connected to the first bus;
- a second load that is connected to the second bus;
- a high-voltage battery that includes a first plurality of cells and outputs electrical power at a first voltage level;
- a low-voltage battery that includes a second plurality of cells and outputs electrical power to the second bus at a second voltage level that is lower than the first voltage level, wherein a common cell type is used for the first plurality of cells and the second plurality of cells, and a number of individual cells included in the first plurality of cells is an integer multiple of a number of individual cells that is included in the second plurality of cells;
- a first DC-DC converter that connects the high-voltage battery to the first bus to transfer electrical power between the high-voltage battery and the first bus, wherein the first DC-DC converter is operable to convert electrical power between the first voltage level and the second voltage level;
- a second DC-DC converter that connects the first bus to the second bus to transfer electrical power between the first bus and the second bus at the second voltage level;
- and
- a controller that is configured to control operation of the first DC-DC converter and the second DC-DC converter in one of a first operating mode in which the first load and the second load are powered by the high-voltage battery, a second operating mode in which the first load and the second load are powered by the low-voltage battery, and a third operating mode in which the high-voltage battery is charged by the low-voltage battery.
7 more elements
A system, comprising:
- a first bus;
- a second bus;
- a high-voltage battery that includes a first plurality of cells;
- a low-voltage battery that includes a second plurality of cells, wherein the low-voltage battery is connected to the second bus;
- a first DC-DC converter that connects the high-voltage battery to the first bus;
- a second DC-DC converter that connects the first bus to the second bus;
- and
- a controller that is configured to control operation of the first DC-DC converter to transfer power between the high-voltage battery and the first bus and to control operation of the second DC-DC converter to transfer power between the first bus and the second bus.
5 more elements
A system, comprising:
- a first bus;
- a second bus;
- a first load that is connected to the first bus;
- a second load that is connected to the second bus;
- a high-voltage battery that includes a first plurality of cells;
- a low-voltage battery that includes a second plurality of cells, wherein the low-voltage battery is connected to the second bus;
- a first DC-DC converter that connects the high-voltage battery to the first bus;
- a second DC-DC converter that connects the first bus to the second bus;
- and
- a controller that is configured to control operation of the first DC-DC converter and the second DC-DC converter in one of a first operating mode in which the first load and the second load are powered by the high-voltage battery, a second operating mode in which the first load and the second load are powered by the low-voltage battery, and a third operating mode in which the high-voltage battery is charged by the low-voltage battery.
7 more elements
A system, comprising:
- a first bus;
- a second bus;
- a first load that is connected to the first bus;
- a second load that is connected to the second bus;
- a high-voltage battery that includes a first plurality of cells and outputs electrical power at a first voltage level;
- a low-voltage battery that includes a second plurality of cells and outputs electrical power to the second bus at a second voltage level that is lower than the first voltage level, wherein a common cell type is used for the first plurality of cells and the second plurality of cells;
- a first DC-DC converter that connects the high-voltage battery to the first bus;
- a second DC-DC converter that connects the first bus to the second bus;
- and
- a controller that is configured to control operation of the first DC-DC converter and the second DC-DC converter to selectively supply electrical power from the high-voltage battery to the first load and the second load or supply electrical power from the low-voltage battery to the first load and the second load.
7 more elements
Dependencies are inferred from the claim text.