Toyota Fortuner, Hilux mild-hybrid tech explained

Toyota claims that the mild-hybrid tech could increase fuel efficiency by up to 10 percent over the diesel powertrain.

Published On Sep 18, 2023 07:00:00 AM

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Toyota has released fresh details on its new 48V mild-hybrid tech, which it plans to use on its diesel-powered pickup trucks and SUVs. The Japanese marque claims that this system will enhance driving experience, aid fuel efficiency and facilitate quieter starts as opposed to gear-driven traditional start/stop functions.

Mild-hybrid tech recently tested on Hilux GR-S in Kenya
To be offered with the Hilux and Land Cruiser Prado first
Could make its way to the Fortuner too

Toyota's 2.8-litre diesel engine, which powers the Land Cruiser Prado, will utilise the new 48V mild-hybrid technology initially. It's important to note that the same engine powers the Hilux and the Fortuner in many markets, including India. Toyota has stated that the Hilux mild-hybrid electric vehicle (MHEV) will make its debut in the South African and Australian markets next year, whilst Toyota South Africa also officially announced that the Fortuner and the Hilux will offer this tech from 2024.

Toyota's new 48V mild-hybrid tech: how does it work?

The mild-hybrid system features three main components: a belt-driven electric generator that replaces the conventional alternator in the engine; a 48V battery; and a DC-DC converter. Toyota claims this system will provide enhanced torque and torque assist, smoother start/stop functions, regenerative braking and up to 10 percent better fuel efficiency compared to diesel-only powertrains.

Toyota has also said that the new system has been developed with off-roading in mind, so it won't affect the performance and towing capabilities of the Hilux and Fortuner. The strategically placed components also allow for a water wading depth of 700mm. Toyota says that due to the lightweight nature of the components, the system can also be fitted into existing powertrains.

Will the 48V mild-hybrid tech make it to Indian shores?

Toyota boasts of a strong fleet of SUVs and MPVs in India, including hybrids like the Urban Cruiser Hyryder, Innova Hycross and the Vellfire. Toyota also offers a variety of off-roaders without any hybrid tech like the Fortuner, Hilux and the Legender, and there are high chances of the Fortuner getting this tech here.

Also see:

Toyota Fortuner flex-fuel debuts at GIIAS 2023

Toyota Century SUV teased ahead of September 6 debut