Vehicle and power transmission/reception system
First Claim
1. A vehicle comprising:
- a main battery;
a converter connected to the main battery;
an inverter connected to the converter and a rotational electric machine;
a first relay provided between the main battery and the converter;
a power reception device that receives electric power for running of the vehicle in a non-contact manner by electromagnetic field resonance;
a second relay provided between the main battery and the power reception device;
a power transmission device that transmits electric power to be supplied to an in-vehicle electrical device in a non-contact manner by electromagnetic induction, the power transmission device being configured to receive electric power from the main battery via the first relay; and
a control unit that;
switches between ON/OFF states of the first relay and ON/OFF states of the second relay;
prohibits power supply from the power transmission device to the in-vehicle electrical device when the power reception device can receive electric power with the first relay being OFF and the second relay being ON;
prohibits power supply from the power transmission device to the in-vehicle electrical device when the power reception device is prohibited from receiving electric power with the first relay being OFF and the second relay being OFF; and
allows power supply from the power transmission device to the in-vehicle electrical device when the first relay is ON.
1 Assignment
0 Petitions
Accused Products
Abstract
A vehicle includes a power reception unit for receiving electric power in a non-contact manner by electromagnetic field resonance, and a device power feeding unit for transmitting electric power to be supplied to an in-vehicle electrical device in a non-contact manner by electromagnetic induction. A distance over which the electric power is transmitted from an external power transmission unit to the power reception unit in a non-contact manner is longer than a distance over which the electric power is transmitted from the device power feeding unit to the in-vehicle electrical device in a non-contact manner. The vehicle further includes a main battery for supplying electric power to a motor generator, and an auxiliary battery. The auxiliary battery has a voltage lower than a voltage of the main battery. The device power feeding unit receives electric power from the auxiliary battery and transmits the power to the in-vehicle electrical device.
-
Citations
8 Claims
-
1. A vehicle comprising:
-
a main battery; a converter connected to the main battery; an inverter connected to the converter and a rotational electric machine; a first relay provided between the main battery and the converter; a power reception device that receives electric power for running of the vehicle in a non-contact manner by electromagnetic field resonance; a second relay provided between the main battery and the power reception device; a power transmission device that transmits electric power to be supplied to an in-vehicle electrical device in a non-contact manner by electromagnetic induction, the power transmission device being configured to receive electric power from the main battery via the first relay; and a control unit that; switches between ON/OFF states of the first relay and ON/OFF states of the second relay; prohibits power supply from the power transmission device to the in-vehicle electrical device when the power reception device can receive electric power with the first relay being OFF and the second relay being ON; prohibits power supply from the power transmission device to the in-vehicle electrical device when the power reception device is prohibited from receiving electric power with the first relay being OFF and the second relay being OFF; and allows power supply from the power transmission device to the in-vehicle electrical device when the first relay is ON. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A power transmission/reception system comprising:
-
a power transmission apparatus outside of a vehicle for transmitting electric power to the vehicle in a non-contact manner by electromagnetic field resonance; an in-vehicle electrical device used in the vehicle; and the vehicle, comprising; a battery; a converter connected to the battery; an inverter connected to the converter and a rotational electric machine; a first relay provided between the battery and the converter; a power reception device that receives electric power for running of the vehicle from the power transmission apparatus outside of the vehicle in a non-contact manner by electromagnetic field resonance; a second relay provided between the battery and the power reception device; a power transmission device that transmits electric power to be supplied to the in-vehicle electrical device in a non-contact manner by electromagnetic induction, the power transmission device being configured to receive electric power from the battery via the first relay; and a control unit that; switches between ON/OFF states of the first relay and ON/OFF states of the second relay; prohibits power supply from the power transmission device to the in-vehicle electrical device when the power reception device can receive electric power with the first relay being OFF and the second relay being ON; prohibits power supply from the power transmission device to the in-vehicle electrical device when the power reception device is prohibited from receiving electric power with the first relay being OFF and the second relay being OFF; and allows power supply from the power transmission device to the in-vehicle electrical device when the first relay is ON.
-
Specification