# US 9,437,350 B2 · Electrical line for a motor vehicle

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- Number: US 9,437,350 B2
- Document ID: US9437350B2
- Status: Granted
- Kind: B2
- Application number: 14/052,890
- Filed: 2013-10-14
- Published: 2014-04-24
- Granted: 2016-09-06
- Earliest claimed: 2012-10-23
- Assignees: Nexans
- Applicants: Nexans
- Inventors: Helmut Steinberg
- Web page: https://patentgrep.com/patent/US9437350B2

## CPC

- G01M 5/0025: {of elongated objects, e.g. pipes, masts, towers or railways (G01M5/0058 takes precedence)}
- B60L 3/0069: {relating to the isolation, e.g. ground fault or leak current}
- B60L 3/04: Cutting off the power supply under fault conditions (protective devices and circuit arrangements in general H01H; H02H)
- B60L 50/40: using propulsion power supplied by capacitors
- B60L 50/51: characterised by AC-motors
- G01M 5/0033: {by determining damage, crack or wear}
- G01M 11/085: {the optical fiber being on or near the surface of the DUT}
- G01M 11/086: {Details about the embedment of the optical fiber within the DUT}
- G02B 6/4416: {Heterogeneous cables}
- H01B 7/32: with arrangements for indicating defects, e.g. breaks or leaks
- H01B 7/328: {comprising violation sensing means}
- H01B 11/22: Cables including at least one electrical conductor together with optical fibres
- B60L 2210/40: DC to AC converters
- G01M 5/0091: {by using electromagnetic excitation or detection}
- Y02T 10/70: Energy storage systems for electromobility, e.g. batteries
- Y02T 10/72: Electric energy management in electromobility
- G01M: TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- B60L: PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES (arrangements or mounting of electrical propulsion units or of plural diverse prime-movers for mutual or common propulsion in vehicles B60K1/00, B60K6/20; arrangements or mounting of electrical gearing in vehicles B60K17/12, B60K17/14; preventing wheel slip by reducing power in rail vehicles B61C15/08; dynamo-electric machines H02K; control or regulation of electric motors H02P); SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES (electric coupling devices combined with mechanical couplings of vehicles B60D1/64; electric heating for vehicles B60H1/00); ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL (control or regulation of electric motors H02P); MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- H01B: CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES (selection for magnetic properties H01F1/00; waveguides H01P {; printed circuits H05K})
- Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION

## Abstract

An electrical line (5) for electrically conductively connecting two units arranged in a motor vehicle, where the units have insulated electrical conductors surrounded by a common electrically effective screen. Over the entire length of the line (5) the construction of the line includes at least one light conductor (10) which is connected in the operating position to an evaluating unit (12) coupled to a switching element (11), and is integrated in the screen (9) of the line (5), or is arranged directly underneath the screen (9) of the line (5) while being in contact with the line (5), so that damage to the line (5) leads with certainty at least to a deformation of the light conductor (10) which leads to a signal which can be recognized by the evaluating unit (12).

## Claims

### Claim 1

An electrical line for electrically conductively connecting two units arranged in a motor vehicle, said electrical line comprising:
at least one electrical conductor;
an electrically conductive screen surrounding said least one electrical conductor; and
at least one light conductor, said light conductor is either one of integrated in said electrically conductive screen or positioned directly underneath and in contact with said electrically conductive screen, said at least one light conductor extending over the entire length of said electrical line,
wherein said light conductor is connected to an evaluating unit,
wherein said electrically conductive screen and said light conductor are arranged together in a manner that deformation of said screen simultaneously deforms said light conductor, the deformation of said light conductor being detectable at said evaluating unit as a signal change within said light conductor, and
wherein said evaluating unit is connected to a switching element, said switching unit configured to disconnect said electrical line from power in the event said evaluating unit detects a signal change within said light conductor.