Volvo Truck Corporation

Université Grenoble Alpes

Renault Trucks

Volvo Lastvagnar Ab

Michael Millet

Jean-Baptiste Doray

Philippe Le Brusq

Christophe Magnet

Thomas Justin

Julien Richer

David Frey

Pierig Gaillaud

Richard Valayer

Piérig Gaillaud

Michel Lou Mottier

A system for generating air pressure in a hybrid vehicle, comprising an engine-driven air compressor (C) configured to be selectively operated by an ICE engine, an electrically-driven air compressor (C) configured to be operated by an electric motor, wherein said electric motor is supplied from the electric network, at least one air reservoir configured to store pressurized air and being configured to be connected directly or indirectly to both an outlet of the engine-driven air compressor (C) and an outlet of the electrically-driven air compressor (C), at least one electronic control unit (') configured to control at least the electrically-driven air compressor (C) according at least to a selected drive mode of the vehicle, wherein the electrically-driven air compressor (C) is downsized compared to the engine-driven compressor (C), and corresponding control methods.

Dual air compressor for hybrid vehicles

Method for venting a pneumatic system of a vehicle, pneumatic system and vehicle Method for venting a pneumatic system () of a vehicle, the pneumatic system () comprising an air compressor (), a pneumatic circuit (), an air pressure management system () in communication with the air compressor () and the pneumatic circuit (), and a control unit, the method comprising: —while pressure in the pneumatic circuit () is less than a cut-out pressure, supplying the pneumatic circuit () with compressed air from the air compressor () operated at an operating speed through the air pressure management system (), —once pressure in the pneumatic circuit () reaches the cut-out pressure, lowering pressure in the pneumatic circuit () to a target pressure, the air compressor () being operated at at least one deflating speed lower than the operating speed, the deflating speed being non null, —after pressure in the pneumatic circuit () has reached the cut-out pressure, releasing compressed air in the air pressure management system () to the outside environment.

Method for venting a pneumatic system of a vehicle, pneumatic system and vehicle

An electrical power converter unit () includes: a first connection interface () comprising two leads () forming a DC input/output interface for connecting a first electrical device to the power converter unit, a three-phase rectifier power converter circuit () and a second connection interface () for connecting a second electrical device to the power converter unit. The second connection interface includes a switching unit () adapted to switch between:&#x2014;a DC input/output mode, in which first, second and third arms of the power converter circuit () are electrically connected together, forming one DC input/output; and&#x2014;an AC input/output mode, in which the arms are disconnected from each other, forming separate input/outputs for a three-phase AC voltage.

Electrical power converter unit, an electrical power conversion device and an industrial vehicle including this electrical power converter unit

A method is provided for controlling a hybrid automotive vehicle equipped with an internal combustion engine, and an electric machine connected to an energy storage system includes a) during a mission of the vehicle, estimation of the temperature of the energy storage system at the beginning of a next mission of the vehicle, and b) if the temperature estimated at step a) is below a threshold value, recharging, before the end of the current mission (If the vehicle, the energy storage system on the basis of the temperature estimated at step a). In a step c), if the energy storage system has been recharged at step b), then, at the beginning of the next operating period of the vehicle, the energy storage system is heavily discharged. With this method, the battery rapidly reaches the desired temperature when driving off again at the beginning of the next mission.

Method for controlling a hybrid automotive vehicle and hybrid vehicle adapted to such a method

A method is provided for controlling a power supply system of an automotive vehicle that includes at least one battery and at least one associated battery managing unit adapted to monitor the state of charge of the battery. During an off state of the vehicle, the state of charge level of each battery is monitored by the battery managing unit. If the state of charge monitored reaches a low state of charge threshold, an on-board communication device adapted to emit a critical state of charge level alarm to be received by an off-board reception device is activated. The power supply system includes a battery managing unit per battery and an alarm to emit a critical state of charge level alarm.

Method for controlling a power supply system of an automotive vehicle and power supply system adapted to such a method

A method for controlling a hybrid traction assembly includes an initial depleting phase which begins at the beginning of the vehicle mission and where the hybrid traction assembly is controlled to cause depletion of the storage device at a high first mean depletion rate, at least one sustaining phase where the hybrid traction assembly is controlled so that the state of charge is maintained in a predetermined sustaining range. The method further includes a second depleting phase which extends between the initial depleting phase and the sustaining phase, wherein the hybrid traction assembly is controlled to cause depletion of the storage device at a second mean depletion rate, the second mean depletion rate being lower than the first mean depletion rate.

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Moidieu Detourbe, France

Michael Millet