Electric vehicle, electric-vehicle charging stand and communication system therebetween
First Claim
1. An electric vehicle (EV) charging stand, comprising:
- a plurality of comparators configured to receive a state signal from an electric vehicle (EV), to compare a voltage value of the received state signal with a reference value, and to output a plurality of signals in response to a result of the comparing, wherein each of the plurality of comparators has a different reference value; and
a control unit configured to receive the plurality of signals outputted from the plurality of comparators, and to detect a preparation state for charging a battery of the EV.
1 Assignment
0 Petitions
Accused Products
Abstract
Disclosed are an electric vehicle (EV), an EV charging stand, and a communication system therebetween, the EV including a charge control unit configured to detect a preparation state for charging a battery and output a resistance varying signal according to the detected state, and a resistor unit configured to vary a resistance value in response to the resistance varying signal, thus changing a voltage value of a state signal transmitted to the EV charging stand, and the EV charging stand including a comparator configured to receive a stage signal from the EV, compare a voltage value of the received state signal with a reference value, and output a signal in response to a result of comparing, and a control unit configured to receive the signal from the comparator and detect a preparation state for charging the battery of the EV.
-
Citations
8 Claims
-
1. An electric vehicle (EV) charging stand, comprising:
-
a plurality of comparators configured to receive a state signal from an electric vehicle (EV), to compare a voltage value of the received state signal with a reference value, and to output a plurality of signals in response to a result of the comparing, wherein each of the plurality of comparators has a different reference value; and a control unit configured to receive the plurality of signals outputted from the plurality of comparators, and to detect a preparation state for charging a battery of the EV. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
Specification