Charging cable for an electric vehicle with communication capability
A charging cable for an electric vehicle includes at least two power lines configured for conducting a charging current, and two high-frequency communication lines being separate and extending in parallel to the power lines and configured for transmitting a charging information between a charger and an electric vehicle.
1 . A charging cable for an electric vehicle, comprising:
at least two power lines configured for conducting a charging current, and two high-frequency communication lines configured for exchanging a charging information between a charger and an electric vehicle;
wherein the high-frequency communication lines are separated from the power lines and extend in parallel to the power lines along the charging cable; and
wherein a ferrite bead or inductance is arranged between a ground line of the high-frequency communication lines and a ground line of the charger.
2 . The charging cable of claim 1 , wherein the charging information is exchanged according to a Combined Charging System (CCS) protocol.
3 . The charging cable of claim 1 , wherein the charging information is exchanged by means of a pulse-width modulation (PWM).
4 . The charging cable of claim 1 , wherein the charging information is exchanged at a frequency between 1 MHz and 50 MHz.
5 . The charging cable of claim 1 , wherein the at least two power lines are configured for a DC charging current and/or for an AC charging current.
6 . The charging cable of claim 1 , wherein the at least two power lines further comprise a Protected Earth (PE) line, and wherein the PE line is connected to the ground line of the communication lines.
7 . The charging cable of claim 1 , wherein the high-frequency communication lines are implemented as a twisted pair line.
8 . The charging cable of claim 1 , wherein the high-frequency communication lines are implemented as a coaxial cable.
9 . The charging cable of claim 1 , further comprising further lines, the further lines configured for exchanging Proximity Pilot (PP) information, and/or temperature information, communication signals and/or any other signals.
10 . The charging cable of claim 1 , wherein the charging cable further comprises a cable cover, and wherein the power lines and the high-frequency communication lines are arranged within the cable cover.
11 . The electric vehicle power supply equipment of claim 10 , wherein the connector is a connector according to IEC 61851-23, DIN SPEC 70121, ISO/IEC 15118-2, ISO/IEC 15118-3 and/or SAE J1772 specifications.
12 . An electric vehicle power supply equipment for charging an electric vehicle, comprising:
a charger configured for charging the electric vehicle;
a charging connector, the charging connector configured for mating a charging socket of the electric vehicle;
a ferrite bead or inductance; and
a charging cable extending between the charger and the charging connector, the charging cable comprising:
at least two power lines configured for conducting a charging current from the charger to the electric vehicle, and
two high-frequency communication lines configured for exchanging a charging information between the charger and the electric vehicle;
wherein the high-frequency communication lines are separated from the power lines and extend in parallel to the power lines along the charging cable; and
wherein the ferrite bead or inductance are arranged between a ground line of the high- frequency communication lines and a ground line of the charger.
13 . The electric vehicle power supply equipment of claim 12 , further comprising a Protected Earth (PE) line, wherein the PE line is connected to the ground line of the communication lines, in the connector or close to the connector.
14 . The electric vehicle power supply equipment of claim 12 , further comprising a ferrite bead or inductance inside the connector, which is arranged between the ground line of the high-frequency communication lines and the ground line of the charger.