公开(公告)号：US20220291273A1

公开(公告)日：2022-09-15

申请号：US17652203

申请日：2022-02-23

Applicant: VOLVO TRUCK CORPORATION

Inventor： Julien MAITRE ,  Maxime VALERO ,  Benjamin FORAS

IPC: G01R31/00 ,  G01R21/133 ,  H02H1/00 ,  H02H3/08 ,  B60L58/12

Abstract: A control method for determining an operational status of an electrical load of a heavy-duty vehicle includes measuring a global current consumption of the electrical network when the electrical load is not activated, detecting an activation of the electrical load, measuring the global current consumption of the electrical network after the electrical load has been activated, determining an electrical current consumption of the electrical load, determining a reference current consumption of the electrical load, if the difference between the determined electrical current consumption of the electrical load and the determined reference current consumption is higher than a first predetermined threshold and lower than a second predetermined threshold, the second predetermined threshold being higher than the first predetermined threshold, set the operational status of the electrical load to a first status called “nominal operation”.

公开(公告)号：US20220242341A1

公开(公告)日：2022-08-04

申请号：US17596968

申请日：2019-06-26

Applicant: VOLVO TRUCK CORPORATION

Inventor： Hans WESTERLIND ,  Robert NIEMCZYK ,  Gregoire ARTUR DU PLESSIS ,  Jean-Daniel BONNET ,  Bart POTTS ,  Joshua SMITH ,  David DE BRITO ,  Maxime VALERO

IPC: B60R16/033 ,  B60L1/00 ,  H02J1/08 ,  H02J7/14 ,  H02M3/00

Abstract: A vehicle power supply system (100), comprising: —a vehicle battery (111) with a charging voltage, —a DC-to-DC converter (130) comprising two first connection terminals (110) connected to the vehicle battery (111) and two second connection terminals (120) for connecting an external charger to recharge the vehicle battery (111) or for connecting an external battery to be recharged, wherein, in a first mode in which an external charger is connected to the two second connection terminals (120), the voltage V2 between the two second connection terminals (120) is an input voltage of the converter and the voltage V1 between the two first connection terminals (110) is an output voltage of the converter, wherein, in a second mode in which an external battery to be recharged is connected to the two second connection terminals (120), the voltage V1 between the two first connection terminals (110) is an input voltage of the converter and the voltage V2 between the two second connection terminals (120) is an output voltage of the converter, wherein the system also includes means for determining at least the voltage V2 between the two second connection terminals (120) and preferably also the voltage V1 between the two first connection terminals (110), and wherein the DC-to-DC converter (130) is controlled so that the output voltage of the converter is equal to the charging voltage of the vehicle battery (111) in the first mode and to a charging voltage of the external battery in the second mode.

公开(公告)号：US20240154432A1

公开(公告)日：2024-05-09

申请号：US17982898

申请日：2022-11-08

Applicant: Volvo Truck Corporation

Inventor： Maxime VALERO ,  David DE BRITO ,  Frédéric LEROY

IPC: H02J7/00 ,  G01R19/10 ,  G01R19/12 ,  G01R19/165

CPC classification number: H02J7/0016 ,  G01R19/10 ,  G01R19/12 ,  G01R19/16571 ,  B60L58/18 ,  H02J2207/20

Abstract: 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.

公开(公告)号：US20220355797A1

公开(公告)日：2022-11-10

申请号：US17729107

申请日：2022-04-26

Applicant: Volvo Truck Corporation

Inventor： Frédéric LEROY ,  Julien MAITRE ,  Maxime VALERO

IPC: B60W30/188 ,  B60R16/033 ,  B60W10/06 ,  B60W10/26 ,  B60W10/30 ,  H01M10/48

Abstract: 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.