Electrical power system for hybrid vehicles
AssigneeFord Global Technologies, LLC
InventorsSuriyaprakash A. Janarthanam, Hilde A. Heremans, Mark J. Ferrel, Wayne M. Thompson
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Abstract
A modular battery and power control system provides a range of electrical power to high-voltage and low-voltage power demand systems in a hybrid vehicle. The modular battery and power control system provides a single high-voltage modular battery pack that is selectively connected to high-voltage and low-voltage demand systems by a switch system. The switch system is controlled by a voltage controller module which monitors power demand and charge states of the electrical system and determines the switch positions to effect the indicated electrical demands of the hybrid vehicle.
Claims20
A vehicle electrical system comprising:
- a high-voltage battery;
- a low-voltage circuit;
- a control system, including a switch connected between the battery and the low-voltage circuit, the control system configured to selectively switch the high voltage battery to electrical communication with only the low-voltage circuit based upon a power requirement.
A vehicle electrical system comprising:
- a battery having a high-voltage output to a high-voltage connector;
- a DC/DC converter configured to accept the high-voltage output and provide a low-voltage output to a low-voltage connector;
- a switch system comprising:
- electrical contact points that connect the battery to at least one of the high-voltage connector and the low-voltage connector;
- a solenoid;
- a controller configured to selectively control the solenoid in response to an input signal indicative of an electrical demand state to electrically connect the battery to both the high-voltage connector and the low-voltage connector or only the low-voltage connector.
A hybrid vehicle electrical system comprising:
- a high-voltage circuit;
- a low-voltage circuit;
- a high-voltage battery;
- a switch system selectively connecting the battery to the high-voltage and low-voltage circuits;
- a controller configured to selectively control the switch system in response to an input signal, indicative of an electrical demand state, to electrically connect the battery to the high/low-voltage circuits or only the low-voltage circuit.
Dependencies are inferred from the claim text.