Plug-in hybrid engines based on a diesel engine allow significant savings. Why do they struggle to establish themselves?
Remember: ten years ago, the PSA Peugeot Citroën group launched the first diesel hybrid engine as standard, with the HDi HYbrid4 engine combining a diesel engine with an electric motor, reducing fuel consumption while improving driving pleasure, with a four-wheel drive transmission.
Several years later, Volvo launched on its V60 the first engine plug-in diesel hybridfollowed by Mercedes with the “300 de” and “350 de” engines on the C, E, GLC and GLE Class: versions still offered in the German manufacturer’s catalog today.
— Citroën (@Citroen) March 6, 2012
Diesel hybrid: the best of both worlds?
With the arrival of the possibility of recharging the battery of diesel hybrid engines, the latter make it possible to achieve significant savings, subject to having an electric recharging solution, such as a terminal or a Wallbox at one’s home or at one’s place. of work.
Daily journeys of a few tens of kilometers can then be made in 100% electric mode, while retaining the versatility of a diesel heat engine, more sober than its gasoline counterpart for the longest journeys: the best of both worlds, therefore. But, why are manufacturers not more interested in it?
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— Mercedes-Benz Huillier (@MB_Huillier) July 24, 2020
Diesel hybrid: an expensive technology
A diesel engine emits less CO2 than a gasoline engine, but rejects more NOx, the nitrogen oxides which have been so decried since the scandal of the diesel gate involving in particular Volkswagen… To reduce their NOx emissions, the latest generations of diesel engines must use very expensive depollution technologies which, of course, will affect the final price of the vehicle.
Add to that the cost of hybridization, including in particular the electric motorization and its battery, already very expensive in association with a gasoline motorization, and you will understand why the diesel hybrid is struggling to impose itself. Indeed, apart from professional customers, these models are not popular with private customers.
thought of the “GLC 300de” delivering a power of ≈ 335hp with the 197hp diesel engine and 100kw electric (136hp). pic.twitter.com/9iKPQHW2a6
— Auto Sector (@AutoSector) June 2, 2022
Diesel hybrid: a threatened future
Moreover, the future Euro 7 standardexpected for 2025, may well sign the death warrant for diesel engines, even if nothing is official yet.
In this context, it is difficult for a manufacturer to invest in a technology that risks being banned in the short term… This is how, in recent years, brands have massively oriented towards electricsome having even already stopped the development of new heat engines, like Volvo or Audi for example.
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