Control Pilot Latch-Out Mechanism to Reduce Off-Board Energy Consumption
First Claim
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1. A vehicle comprising:
- a charger;
a charge port including circuitry configured to interface with a control pilot of electric vehicle supply equipment (EVSE) to establish, when connected, a pilot signal between the charger and EVSE to wake-up the charger; and
at least one controller programmed to, in response to an interrupt condition, interrupt the pilot signal to reduce power consumed by the charger while the charge port and EVSE are connected.
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Abstract
A vehicle connected to electric vehicle supply equipment is configured to wake-up an onboard charger based on a pilot signal. A controller is configured to interrupt the pilot signal to prevent the pilot signal from subsequently waking the charger to reduce power consumed by the charger while the vehicle is connected. The interruption may be triggered by a completion of a charge cycle, an extensive charge wait interval, or a charging system condition that prevents charging. The controller may discontinue interruption of the pilot signal in response to a wake-up source other than the pilot signal.
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Citations
16 Claims
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1. A vehicle comprising:
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a charger; a charge port including circuitry configured to interface with a control pilot of electric vehicle supply equipment (EVSE) to establish, when connected, a pilot signal between the charger and EVSE to wake-up the charger; and at least one controller programmed to, in response to an interrupt condition, interrupt the pilot signal to reduce power consumed by the charger while the charge port and EVSE are connected. - View Dependent Claims (2, 3, 4, 5)
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6. A vehicle comprising:
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a charger; a charge port including circuitry configured to switchably connect the charger with a control pilot of electric vehicle supply equipment (EVSE) to establish a pilot signal between the charger and EVSE, when engaged, to wake-up the charger; and at least one controller programmed to open the connection between the charger and control pilot in response to an interrupt condition to reduce power consumed by the charger while the charge port and EVSE are engaged. - View Dependent Claims (7, 8, 9, 10, 11)
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12. A method of waking up a charger comprising:
by at least one controller, interrupting a pilot signal between the charger and electric vehicle supply equipment (EVSE), while engaged, in response to an interrupt condition to reduce power consumed by the charger. - View Dependent Claims (13, 14, 15, 16)
Specification