EVSE with cordset handle temperature measurement

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EVSE with cordset handle temperature measurement

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JEFFERIES KEVIN M / EDWARDS BENJAMIN W / WHITE MATTHEW L / FILIPPENKO KONSTANTIN A / WEILER RICHARD K

A circuit measures temperature in a charging handle 150 of an electric vehicle charging station (EVSE) 100. A temperature sensor is connected between a control pilot line 115 and ground line G in the charging handle of the EVSE. The control pilot line transmits a square wave signal CP having positive and negative portions, to an electric vehicle, according to the SAE J1772 standard. A temperature monitor 300 in the EVSE, coupled to a pilot signal measurement circuit 230 in the EVSE, measures the negative portions of the square wave signal resulting from the temperature sensor conducting current in response to changes in temperature in the handle. Temperature measurement of the charging handle is achieved without significant added cost or complexity, by reusing existing components in the EVSE, with little or no modification required to EVSE electronics, and minimal modification of the handle.

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Title :

EVSE with cordset handle temperature measurement

Contributors:

JEFFERIES KEVIN M (author) / EDWARDS BENJAMIN W (author) / WHITE MATTHEW L (author) / FILIPPENKO KONSTANTIN A (author) / WEILER RICHARD K (author)

Publication date :

2017-10-31

Type of media :

Patent

Type of material :

Electronic Resource

Language :

English

Classification :

IPC:

G01K MEASURING TEMPERATURE , Messen der Temperatur / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H01R Elektrisch leitende Verbindungen , ELECTRICALLY-CONDUCTIVE CONNECTIONS / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung