Electric vehicle charging station

The charging station uses pilot signal contacts to monitor connection states and log time, addressing unproductive blocking by accurately billing for both energy and parking time, enhancing utilization and revenue.

DE102020121726B4Active Publication Date: 2026-06-03DR ING H C F PORSCHE AG
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Patent Information

Application Number
DE102020121726
Authority / Receiving Office
DE · DE
Patent Type
Patents
Current Assignee / Owner
Filing Date
2020-08-19
Publication Date
2026-06-03
Estimated Expiration
2040-08-19

AI Technical Summary

Technical Problem

Existing electric vehicle charging stations face issues with unproductive blocking times due to manipulation by drivers, leading to underutilization and unpaid parking duration, as current systems lack accurate detection of plug connection states.

Method used

The charging station incorporates a charging plug with pilot signal contacts that change voltage levels based on connection state, coupled with a billing unit and connection detection module to monitor and log connection time, enabling accurate billing for both energy usage and parking duration.

Benefits of technology

Enables reliable detection of plug connection states, allowing operators to charge for actual connection time, reducing unproductive blocking and increasing revenue by accurately billing for both energy and parking time.

✦ Generated by Eureka AI based on patent content.

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Abstract

Electric vehicle charging station (12) for charging a traction battery (60) of an electric vehicle (16) via a vehicle-side charging socket (50), wherein the charging station (12) is assigned a charging plug (14) for connection with the vehicle-side charging socket (50), which has several charging current plug contacts (44, 45) and at least one pilot signal plug contact (41, 42) which corresponds to a corresponding pilot signal socket contact (51, 52) of the charging socket (50) and whose low-voltage level (UCP, UPP) depends on the connection state of charging plug (14) and charging socket (50), wherein the charging station (12) has a billing unit (20) which is connected to a charging power acquisition unit (26) on the one hand and a billing interface (32) on the other hand and transmits charging information from the billing unit (20) to the billing interface (32) sends, wherein the billing unit (20) has a connection detection module (21),which is electrically connected to at least one pilot signal connector contact (41, 42) and which evaluates the relevant low-voltage level (UCP, UPP) with regard to the connector connection state, determines a connection time value (TC) from this, and sends the connection time value (TC) to the billing interface (32), wherein the first pilot signal connector contact (41) monitored by the connection detection module (21) is assigned to a data transmission line (CP) whose low-voltage level (UCP) indicates the connector connection state, characterized in that the second pilot signal connector contact (42) monitored by the connection detection module (21) is assigned to a resistance-coded status message line (PP) whose low-voltage level (UPP) indicates the connector connection state,and that the connection detection module (21) is connected to both the data transmission line (CP) and the status message line (PP), and a connection time value (TC) is determined only for the periods in which the low voltage level (UCP, UPP) of both the data transmission line (CP) and the status message line (PP) indicates a plug connection.
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Citation Information

Patent Citations

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