VEHICLE INTERFACE WITH NON-LOCAL RETURN TO GROUND
First Claim
1. A vehicle charging system operable with an Electronic Vehicle Supply Equipment (EVSE) system configured to facilitate powering a charger power plant within a vehicle, the charger power plant configured to facilitate charging a high voltage battery included within the vehicle, the vehicle having a low voltage battery with a positive terminal and a negative terminal where the negative terminal defines a vehicle chassis ground, the system comprising:
- a reference circuit configured to receive a control pilot signal output from the EVSE, the reference circuit processing the control pilot signal to generate reference signals;
a shunt configured to connect the reference circuit in series with the vehicle chassis ground; and
a charger controller operable to output a control signal to the charger power plant, the charger power plant relying on the control signal to facilitate controlling the charging of the high voltage battery, the charger controller generating the control signal by processing the reference signals with a compensation device, the compensation device compensating for noise within the reference signal resulting from the reference circuit being connected in series with the shunt.
3 Assignments
0 Petitions
Accused Products
Abstract
A vehicle interface is contemplated to be operable with an Electronic Vehicle Supply Equipment (EVSE) system and a vehicle charging system to facilitate vehicle charging related operations. The vehicle interface may include a noise compensation configured to facilitate compensating for noise within the reference signal resulting from the reference circuit. The vehicle interface may be configured to adapted to common mode interference and other influences resulting from connections between the vehicle interface and EVSE being referenced to earth ground and connections between the vehicle interface and other vehicle electronics being reference to a vehicle chassis ground.
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Citations
20 Claims
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1. A vehicle charging system operable with an Electronic Vehicle Supply Equipment (EVSE) system configured to facilitate powering a charger power plant within a vehicle, the charger power plant configured to facilitate charging a high voltage battery included within the vehicle, the vehicle having a low voltage battery with a positive terminal and a negative terminal where the negative terminal defines a vehicle chassis ground, the system comprising:
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a reference circuit configured to receive a control pilot signal output from the EVSE, the reference circuit processing the control pilot signal to generate reference signals; a shunt configured to connect the reference circuit in series with the vehicle chassis ground; and a charger controller operable to output a control signal to the charger power plant, the charger power plant relying on the control signal to facilitate controlling the charging of the high voltage battery, the charger controller generating the control signal by processing the reference signals with a compensation device, the compensation device compensating for noise within the reference signal resulting from the reference circuit being connected in series with the shunt. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A charger controller operable with a reference circuit, the reference circuit being connected in series with a shunt to a vehicle chassis ground of a vehicle, the reference circuit being configured to generate reference signals in response to receipt of a control pilot signal from an Electronic Vehicle Supply Equipment (EVSE) system, the EVSE system being configured to facilitate powering a charger power plant included within a vehicle to charge a high voltage battery within the vehicle, the reference circuit having a control pilot input operable to receive the control pilot signal of the EVSE system and an earth ground input operable to connect to an earth ground of the EVSE system, the reference circuit further including a first resistor connected in series between the control pilot input and the earth ground input, the reference circuit further including a first switch, a second resistor, and a second switch connected in series and in parallel to the first resistor, the first and second switches each being independently operable between an open position and a closed position, the charger controller comprising:
a compensation device operable to process the reference signals into a charger control signal, the charger control signal for use with the charger power plant to facilitate controlling the charging of the high voltage battery, the compensation device being configured to limit noise the charger control signal by compensating for noise within the reference signals. - View Dependent Claims (16, 17, 18)
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19. A vehicle charging system operable with an Electronic Vehicle Supply Equipment (EVSE) system configured to facilitate powering a charger power plant within a vehicle, the charger power plant configured to facilitate charging a high voltage battery included within the vehicle, the vehicle having a low voltage battery with a positive terminal and a negative terminal where the negative terminal defines a vehicle chassis ground, the EVSE having an earth ground, the system comprising:
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a reference circuit configured to receive a control pilot signal output from the EVSE, the reference circuit processing the control pilot signal to generate reference signals, the reference circuit being connected in series through a shunt to the vehicle chassis ground, the reference circuit including i) a control pilot input operable to receive the control pilot signal of the EVSE system; ii) an earth ground input operable to connect to an earth ground of the EVSE system; iii) a first resistor connected in series to the control pilot input, the earth ground input, the shunt, and the vehicle chassis ground; iv) a first switch, a second resistor, and a second switch connected in series to the control pilot input, the earth ground input, the shunt, and the vehicle chassis ground and in parallel to the first resistor, the first and second switches each being independently operable between an open position and a closed position according to corresponding first and second switch signals; and a charger controller operable to output a control signal to the charger power plant to the charger power plant and to output the first and second switch signals to the first and second switches, the charger power plant relying on the control signal to facilitate controlling the charging of the high voltage battery, the charger controller generating the control signal by processing the reference signals with a compensation device, the compensation device compensating for noise within the reference signal resulting from the reference circuit being connected in series with the shunt. - View Dependent Claims (20)
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Specification