Relay device including a restriction unit
First Claim
1. A relay device converting a control signal related to charging from one format to another and relaying a converted control signal between a first communication unit that is provided on a vehicle having a battery and that sends and receives a control signal related to charging in a first format and a second communication unit that is provided on a charging station for supplying DC power to charge the battery and that sends and receives a control signal related to charging in a second format, comprising:
- a restriction unit that restricts energization between the charging station and the battery regardless of control performed by the vehicle based on the control signal;
an acquisition unit that acquires a voltage value of the DC power supplied from the charging station and a voltage value of the battery;
a determination unit that determines whether or not a voltage difference between the voltage values acquired by the acquisition unit is less than a threshold; and
a release unit that releases restriction by the restriction unit if the determination unit determines that the voltage difference is less than the threshold, whereinthe vehicle is provided with a DC cutoff relay that cuts off DC power supplied from the charging station to the battery and a signal line that transmits a signal for opening or closing the DC cutoff relay,the relay device comprises a signal cutoff relay that cuts off the signal, andthe restriction unit restricts the energization by changing a state of the signal cutoff relay to an interrupted state, and the release unit releases the restriction by changing a state of the signal cutoff relay to an energized state.
1 Assignment
0 Petitions
Accused Products
Abstract
A relay device provided in vehicle having a battery, converting control signal formats, and relaying same between: a first communications unit that sends and receives control signals in a first format relating to charging; and second communications unit that supplies DC voltage, is provided in a charging station that charges battery, and sends and receives control signals in a second format relating to charging. The relay device includes: a limiting unit that limits power supplied between charging station and battery, regardless of vehicle side control performed on control signals'"'"' basis; an acquisition unit that obtains DC voltage supplied by charging station and obtains the battery'"'"'s voltage; a determination unit that determines whether the voltage difference between each obtained voltage is less than threshold value; and a release unit that releases the limits by limiting unit if a determination has been made that the voltage difference is less than threshold value.
-
Citations
4 Claims
-
1. A relay device converting a control signal related to charging from one format to another and relaying a converted control signal between a first communication unit that is provided on a vehicle having a battery and that sends and receives a control signal related to charging in a first format and a second communication unit that is provided on a charging station for supplying DC power to charge the battery and that sends and receives a control signal related to charging in a second format, comprising:
-
a restriction unit that restricts energization between the charging station and the battery regardless of control performed by the vehicle based on the control signal; an acquisition unit that acquires a voltage value of the DC power supplied from the charging station and a voltage value of the battery; a determination unit that determines whether or not a voltage difference between the voltage values acquired by the acquisition unit is less than a threshold; and a release unit that releases restriction by the restriction unit if the determination unit determines that the voltage difference is less than the threshold, wherein the vehicle is provided with a DC cutoff relay that cuts off DC power supplied from the charging station to the battery and a signal line that transmits a signal for opening or closing the DC cutoff relay, the relay device comprises a signal cutoff relay that cuts off the signal, and the restriction unit restricts the energization by changing a state of the signal cutoff relay to an interrupted state, and the release unit releases the restriction by changing a state of the signal cutoff relay to an energized state. - View Dependent Claims (2, 3, 4)
-
Specification