Renault S.a.s.

Thibaut Journet

Yves Le Vourch

Michael Palmieri

François Gardien

Sophie Rivet

The invention relates to an electrical system comprising: &#x2014;terminals (V+, V&#x2212;) capable of being connected to an installed electrical power source () capable of delivering an electrical voltage between said terminals; &#x2014;a circuit for detecting an electrical insulation fault between the electrical power source and a housing () forming a floating electrical ground. The detection circuit comprises: &#x2022;a controllable voltage generator () capable of polarizing the housing and the single first terminal at different potentials; &#x2022;a current measurement device () measuring current entering on said first terminal and leaving at a point of the source; &#x2022;a control unit () capable of calculating a value of at least one insulation resistance from said at least one measured current value.

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Aix-les-Bains, France

Thibaut Journet