公开(公告)号：US20210355969A1

公开(公告)日：2021-11-18

申请号：US17277560

申请日：2018-10-11

Applicant: VOLVO TRUCK CORPORATION

Inventor： Philippe LE BRUSQ ,  Michael MILLET ,  Pierig GAILLAUD

IPC: F15B13/02

Abstract: Method for venting a pneumatic system of a vehicle, pneumatic system and vehicle Method for venting a pneumatic system (1) of a vehicle, the pneumatic system (1) comprising an air compressor (4), a pneumatic circuit (2), an air pressure management system (6) in communication with the air compressor (4) and the pneumatic circuit (2), and a control unit, the method comprising: —while pressure in the pneumatic circuit (1) is less than a cut-out pressure, supplying the pneumatic circuit (2) with compressed air from the air compressor (4) operated at an operating speed through the air pressure management system (6), —once pressure in the pneumatic circuit (2) reaches the cut-out pressure, lowering pressure in the pneumatic circuit (2) to a target pressure, the air compressor (4) 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 (2) has reached the cut-out pressure, releasing compressed air in the air pressure management system (6) to the outside environment.

公开(公告)号：US20210245613A1

公开(公告)日：2021-08-12

申请号：US17262905

申请日：2018-07-25

Applicant: VOLVO TRUCK CORPORATION ,  UNIVERSITE GRENOBLE ALPES

Inventor： Michael MILLET ,  Christophe MAGNET ,  David FREY ,  Julien RICHER ,  Philippe LE BRUSQ

IPC: B60L53/22 ,  H02M7/797 ,  B60L53/24

Abstract: An electrical power converter unit (2) includes: a first connection interface (10) comprising two leads (12, 14) forming a DC input/output interface for connecting a first electrical device to the power converter unit, a three-phase rectifier power converter circuit (16) and a second connection interface (30) for connecting a second electrical device to the power converter unit. The second connection interface includes a switching unit (46) adapted to switch between:—a DC input/output mode, in which first, second and third arms of the power converter circuit (16) are electrically connected together, forming one DC input/output; and—an AC input/output mode, in which the arms are disconnected from each other, forming separate input/outputs for a three-phase AC voltage.