Renault S.a.s.

Yves Le Vourch

Antoine Saint-Marcoux

Thomas Peuchant

Richard Pothin

Maxime Debert

Michael Palmieri

Mickael Mallet

Do-Hieu Trinh

Alessandro De Rinaldis

François Gardien

Thibaut Journet

Sophie Rivet

Lionel Lorimier

Yves Peuchant

Mickaël Mallet

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.

Electrical system comprising a circuit for detecting an electrical insulation fault

An electrical power supply system includes a battery of cells, the battery including an ammeter configured to measure battery current flowing through the battery, and at least one voltage sensor configured to measure voltage at terminals of a cell. An electronic control unit is configured to deliver a maximum permissible electrical power setpoint. The control unit is configured to calculate a maximum permissible electrical power associated with a cell by taking the minimum of at least two values, including a first electrical power and a second electrical power.

System for managing the charging of a battery and the regenerative braking of a vehicle at least partially powered by the battery and associated regulation method

The invention relates to a system for managing the charging of at least one cell of a storage battery, comprising: two separate means for comparing the voltage across the terminals of said cell with a threshold voltage; and two separate controlling means adapted to control two actuators, respectively, in order to interrupt the charging of the storage battery when said first or second comparing means detects that the voltage across the terminals of said cell exceeds the threshold voltage. One of the actuators is formed by a charger that is connected to said storage battery in order to recharge said cells.

System for managing the charging of a storage battery

A method for managing charging of a rechargeable battery including at least one module including at least one electrochemical cell, the method including estimating a heat flow produced in the at least one module using an observer estimating overall internal resistance of the electrochemical cells of the module.

Method for managing the charging of a rechargeable battery of a motor vehicle

A method for hill start assistance for a motor vehicle and to an associated device that includes a clutch and a transmission between the clutch and driving wheels of the vehicle. The method determines the torque of the clutch for maintaining the vehicle in an immobile position based on a known engine torque, wherein the torque of the clutch is determined by taking into account a portion of the engine torque dedicated to operation of constituent mechanisms of the vehicle other than the clutch.

Method for hill start assistance for motor vehicle

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Le Chesnay, France

Yves Le Vourch