MODULAR EXTRA LOW VOLTAGE ELECTRIC VEHICLE POWER SYSTEM
First Claim
1. An electric vehicle power system comprising:
- a plurality of electrically connected power modules connected to a system communication bus, each power module comprising;
a rechargeable battery module electrically connected to a DC bus;
an inverter circuit electrically connected to the DC bus, wherein the inverter circuit is configured to convert a DC voltage of the DC bus into an AC power signal, and wherein the inverter circuit is configured to be connected to an electric motor;
at least one of;
a single-phase rectifier circuit electrically connected to the DC bus, the single-phase rectifier circuit configured to convert a single-phase AC power signal into the DC voltage of the DC bus;
ora multi-phase rectifier circuit electrically connected to the DC bus, the multi-phase rectifier circuit configured to convert a multi-phase AC power signal into the DC voltage of the DC bus; and
a local controller connected to the rechargeable battery module, the inverter circuit, and the at least one of the single-phase rectifier circuit or the multi-phase rectifier circuit, the local controller configured to generate one or more control signals;
wherein the plurality of power modules are connected in parallel to at least one electric motor.
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Accused Products
Abstract
In some aspects, an electric vehicle power system may comprise two or more electrically connected power modules connected to a system communication bus. Each power module may comprise a rechargeable battery electrically connected to a DC bus, an inverter circuit electrically connected to the DC bus, and at least one of a single-phase rectifier circuit electrically connected to the DC bus or a multi-phase rectifier circuit electrically connected to the DC bus. A local controller configured to send control signals may be connected to the rechargeable battery, the inverter circuit, and the at least one of the single-phase rectifier circuit or the multi-phase rectifier circuit. The single-phase rectifier circuit may be configured to convert a single-phase AC power signal into the DC voltage of the DC bus. The multi-phase rectifier circuit may be configured to convert a multi-phase AC power signal into the DC voltage of the DC bus.
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Citations
20 Claims
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1. An electric vehicle power system comprising:
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a plurality of electrically connected power modules connected to a system communication bus, each power module comprising; a rechargeable battery module electrically connected to a DC bus; an inverter circuit electrically connected to the DC bus, wherein the inverter circuit is configured to convert a DC voltage of the DC bus into an AC power signal, and wherein the inverter circuit is configured to be connected to an electric motor; at least one of; a single-phase rectifier circuit electrically connected to the DC bus, the single-phase rectifier circuit configured to convert a single-phase AC power signal into the DC voltage of the DC bus;
ora multi-phase rectifier circuit electrically connected to the DC bus, the multi-phase rectifier circuit configured to convert a multi-phase AC power signal into the DC voltage of the DC bus; and a local controller connected to the rechargeable battery module, the inverter circuit, and the at least one of the single-phase rectifier circuit or the multi-phase rectifier circuit, the local controller configured to generate one or more control signals; wherein the plurality of power modules are connected in parallel to at least one electric motor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for providing power for a vehicle, the method comprising:
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receiving, from a user at a master controller, a throttle input; generating, based on the throttle input, a throttle control signal; transmitting, using a system communication bus, the throttle control signal to a plurality of local controllers, each local controller located within one of a plurality of electrically connected power modules, each power module comprising; a rechargeable battery module electrically connected to a DC bus; an inverter circuit electrically connected to the DC bus, wherein the inverter circuit is configured to convert a DC voltage of the DC bus into an AC power signal, and wherein the inverter circuit is configured to be connected to an electric motor; activating a first power module of the plurality of power modules to deliver electrical power to the electric motor based on the throttle control signal; detecting whether an output power of the first power module exceeds a threshold power level; in response to detecting that the output power of the first power module exceeds the threshold power level, activating a second power module of the plurality of electrically connected power modules to deliver electrical power to the electric motor based on the throttle control signal. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification