Charging cable and connector
The charging cable with dual control paths and safety features addresses the lack of functional safety standards, ensuring rapid shutdown and preventing hazards, enhancing safety and reliability.
DE102024135510B3Active Publication Date: 2026-05-28ROBERT BOSCH GMBH
Patent Information
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- ROBERT BOSCH GMBH
- Filing Date
- 2024-11-29
- Publication Date
- 2026-05-28
AI Technical Summary
Technical Problem
Charging cables for electric and hybrid vehicles lack product-specific standards for functional safety, and existing safety measures are inadequate to prevent hazards such as electric shocks and fires.
Method used
A charging cable with dual control paths for an electromechanical disconnect switch, including an electrical signal connection and a processing unit, provides redundant control and safety features like a fault current sensor and residual current device, along with a processing unit for monitoring and shutting down the switch in case of faults.
Benefits of technology
Enhances safety by ensuring rapid and reliable shutdown in case of faults, preventing electric shocks and fires, and allowing for predictive maintenance to prevent component failure.
✦ Generated by Eureka AI based on patent content.
Smart Images
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Abstract
The invention relates to a charging cable (100) which has: -- a first and second connector (110, 120) and a connecting line (130) with at least two electrical conductors (P, N, PE); -- a disconnect switch (140) having an open position in which at least one of the conductors (P, N, PE) is interrupted; -- a fault signal line (150), wherein the charging cable (100) is configured to bring the disconnect switch (140) into the open position when a fault signal is present on the fault signal line (150); -- a fault current sensor (170) wherein the charging cable (100) is configured to apply a fault signal to the fault signal line (150) when a fault current is detected between the electrical conductors (P, N, PE); -- a computing unit (180) configured to move the disconnect switch (140) to the open position via a control line (190) when the computing unit (180) detects a fault, wherein the at least one control line (190) is different from the fault signal line (150), wherein the charging cable (100) is configured to apply a fault signal to the fault signal line (150) when a physical quantity has an impermissible value, wherein the computing unit (180) is configured to test at least one sensor (200, 201, 202, 203) for the physical quantity and to detect a fault in the charging cable (100) when the test indicates a faulty sensor.
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