Renault partnership strengthens Vitesco Technologies electrification efforts

The strategic partnership for joint development of a unique power-electronics concept called One Box — combining DC-DC converter, on-board charger, and inverter in one electrified-vehicle housing — is the latest milestone strengthen the supplier’s growth in the field of electrification.
Renault Group and Vitesco Technologies, a leading manufacturer of modern drive technologies and electrification solutions, are partnering for the joint development and production of power electronics in a so-called One Box for electric and hybrid powertrains — a concept they say is unique in the market.

The goal is a key electronics unit that combines the DC-DC converter, the onboard charger, and the inverter in one housing. The DC-DC converter converts the high-voltage DC (direct current) from the battery to supply the car’s low-voltage DC 14-V network. The onboard charger allows the recharging of the high-voltage DC traction battery from the electrical network. The inverter drives the electric motor in AC (alternating current) from the DC voltage of the traction battery — and controls motor speed, traction, and energy recovery during braking.

The One Box concept will enable an unprecedented gain in compactness (around 45% in terms of volume) and mass for the development of Renault’s future vehicles, particularly for passenger space and comfort. The configurations and assembly will be adapted to the types of electric and hybrid powertrains.

Development platform teams will be mostly based in Toulouse, France. The One Box is planned for electric and hybrid vehicles in Renault’s high-voltage cor
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