DUAL INDUCTIVE/CONDUCTIVE DC-COUPLED CHARGING SYSTEM
First Claim
1. An electrical system that is connectable to an offboard power supply, the electrical system comprising:
- a direct current (DC) voltage bus;
a battery pack connected to the DC voltage bus;
a DC-coupled conductive charging system operable for conductively charging the battery pack via the offboard power supply;
a DC-coupled wireless charger in electrical parallel with the DC-coupled conductive charging system and operable for wirelessly charging the battery pack via the offboard power supply; and
a controller programmed to selectively initiate charging of the battery pack according to a charging preference using analog low-voltage control signals, wherein the charging preference prioritizes charging of the battery pack via a designated one of the DC-coupled conductive and wireless charging systems.
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Accused Products
Abstract
An electrical system connectable to an offboard power supply includes a battery pack, parallel DC-coupled conductive and inductive charging systems, and a controller. The controller initiates charging of the battery pack using analog low-voltage signals. A charging preference may prioritize charging via a designated one of the charging systems. Another electrical system includes a battery pack connected to a DC voltage bus, a charge coupler connectable to the offboard power supply to establish a plug-in charging connection, parallel DC-coupled conductive and inductive charging systems, and a controller. The controller commands charging using the analog low-voltage control signals, doing so via the conductive charging system when the charge coupler is plugged into the power supply and via the wireless charger when the charge coupler is not plugged into the power supply and the controller detects proximity of the system to the primary induction coil.
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Citations
17 Claims
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1. An electrical system that is connectable to an offboard power supply, the electrical system comprising:
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a direct current (DC) voltage bus; a battery pack connected to the DC voltage bus; a DC-coupled conductive charging system operable for conductively charging the battery pack via the offboard power supply; a DC-coupled wireless charger in electrical parallel with the DC-coupled conductive charging system and operable for wirelessly charging the battery pack via the offboard power supply; and a controller programmed to selectively initiate charging of the battery pack according to a charging preference using analog low-voltage control signals, wherein the charging preference prioritizes charging of the battery pack via a designated one of the DC-coupled conductive and wireless charging systems. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An electrical system that is connectable to an offboard power supply, the electrical system comprising:
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a direct current (DC) voltage bus; a battery pack connected to the DC voltage bus; a charge coupler connectable to the offboard power supply to establish a plug-in charging connection; a DC-coupled conductive charging system electrically connected to the charge coupler and operable for conductively charging the battery pack via the plug-in charging connection; a DC-coupled wireless charger in electrical parallel with the DC-coupled conductive charging system and operable for wirelessly charging the battery pack via the offboard power supply and an offboard primary induction coil when the electrical system is in proximity to an offboard primary induction coil; and a controller programmed to selectively initiate charging of the battery pack using analog low-voltage control signals, wherein the controller is programmed to charge the battery pack via the DC-coupled conductive charging system when the charge coupler is plugged into the offboard power supply, and via the wireless charger when the charge coupler is not plugged into the offboard power supply and the controller detects the proximity of the system to the primary induction coil. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17)
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Specification