Volvo Truck Corporation

Robert Karlsson

Jerker Lennevi

Linus Nordholm

Simon Brunet

Devraj Dutt

A method of determining a preconditioning status of a vehicle component or system. The method includes receiving a preconditioning status request for a vehicle component or system; determining the preconditioning status by a preconditioning model estimating the preconditioning status without activating the corresponding vehicle component or system.

Method of determining a preconditioning status of a vehicle component or system

A method for thermal preconditioning at least one thermal buffer in a thermal system of a vehicle, the thermal system being a rechargeable energy storage system, RESS, and/or an energy transformation system comprising fuel cells. The method includes providing scheduled operational information of the thermal buffer, the scheduled operational information comprising a scheduled initialization time and scheduled operational load of the thermal buffer, determining whether the thermal buffer is in need of cooling or heating in order to reach a pre-determined temperature level, preconditioning the thermal buffer in accordance with the scheduled operational information such that the thermal buffer is thermally preconditioned by cooling or heating to the pre-determined level in accordance with the scheduled operational load at a time in accordance with the scheduled initialization time.

Method for thermal preconditioning a thermal buffer in a vehicle

The invention relates to a hazardous voltage interlock loop, HVIL, system (), comprising a first HVIL circuit () being associated with a first high voltage bus () and a second HVIL circuit () being associated with a second high voltage bus (), wherein the first and second high voltage buses () are separated and not electrically connected to each other. The system further comprises a galvanically isolated relay () connected to the first and second HVIL circuits, wherein the galvanically isolated relay is configured to open the first HVIL circuit when no electrical current is flowing in at least a portion of the second HVIL circuit comprising the galvanically isolated relay. The present invention also relates to a vehicle comprising such a system. The present invention also relates to a method of operating a hazardous voltage interlock loop system.

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Kållekärr, Sweden

Robert Karlsson