Volvo Truck Corporation

Frédéric Leroy

Maxime Valero

Julien Maitre

David De Brito

Grégoire Artur Du Plessis

A method to control operation of electrical converter units in an electrical system of a vehicle comprising a first and a second electrical network, the first and the second electrical network being coupled respectively to a positive terminals of a first battery and a second battery, each converter of a plurality of converters having an active state in which the converter output supplies current to the second electrical network, and a rest state in which the converter output does not supply current to the second electrical network, each converter of the plurality of converters exhibiting a respective cumulative operation time in each of a plurality of different current ranges, wherein a single converter is active in a vehicle rest mode, and a balance of converters is carried out upon cumulative respective usage of each converter.

System and method for balancing use of several DC/DC converters in a vehicle

The invention relates to a method for protecting an on-board electrical network of a truck having a base-line equipment provided by a truck manufacturer, and having base-line loads having a current consumption, an auxiliary equipment fitted a posteriori by a truck body builder, and having auxiliary loads having a current consumption, and a battery. The method further comprises, when the engine of the truck is ON: determining that the engine is to be turned off, determining a total current consumption of the truck, determining the battery maximum capacity, if the total current consumption is lower than the battery maximum capacity, turning off the engine, and, if the total current consumption is higher than the battery maximum capacity, reducing the current consumption of at least one adjustable auxiliary load.

Method for protecting an on-board electrical network of a truck

An electrical system for a vehicle having a chassis ground (G) and an engine having an engine ground (G), the system comprising a first electrical energy storage device (), denoted EESD1, a second electrical energy storage device (), denoted EESD2, a starter device () having a starter motor (), a generator (), a first cable () coupling a positive terminal (+) of EESD1 to the positive terminal (+) of the starter device, a second cable () coupling the positive terminal (+) of the generator to a positive terminal (+) of EESD2, a third cable () coupling a negative terminal (&#x2212;) of EESD1 to the negative terminal (&#x2212;) of the starter device, a control unit () for controlling the charge of EESD1, a fusible link () coupling a negative terminal (&#x2212;) of EESD1 to the chassis ground (G).

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Lyons, France

Frédéric Leroy