Toyota has entered a new phase in its journey of hybridisation with the launch of the Fortuner 48V hybrid in India. While a great majority of Toyota’s cars today are already running its famed strong-hybrid system, this ‘new’ 48-volt hybrid system sees the company take its first steps into the electrification of its ladder frame-based vehicles; other ladder frame vehicles like the Innova Crysta and the Hilux are likely to get this system in the future.
- 48V mild-hybrid system produces 11.5hp and 85Nm
- Was first seen on the Hilux pickup in South Africa last year
- System like to be carried over to Innova diesel in future
Toyota Fortuner mild hybrid tech: what is it?
This system was first showcased last year on the Hilux pickup in South Africa. A majority of the components and systems used on the Fortuner Neo drive stay the same. For example, the Hilux and Fortuner share the same 2.8-litre common-rail diesel or GD engine that's manufactured in India, the e-motor/generator, a 48V lithium-ion battery and a DC-DC converter.
.jpg?w=700&c=0)
In the case of the Fortuner sold here, the electric motor-generator – a permanent magnet synchronous unit – puts out 8.5kW or 11.5hp and 85Nm of torque. While there is no increase in the maximum combined power (204hp and 500Nm), getting a strong dash of electric boost at low engine speeds is sure to improve the driving dynamics and elasticity when it comes to responses. The e-motor in the Hilux in comparison puts out 12kW (16hp).
Claims to improve efficiency by roughly five percent
Owners can also expect around five percent increase in fuel efficiency with this system. This is mainly due to regeneration collecting energy that otherwise gets wasted when the vehicle slows down. Efficiency is also helped by a 20 percent reduction in the engine’s idling speed, from 720rpm to 600rpm, and what’s unique is that the driver can set their preference for a normal or long stop for the start stop system – with the air conditioner, operation is increased during the long stop.
.jpg?w=700&c=0)
Toyota has also taken special effort to protect the system from water ingress. The battery has 13 cells, weighs 7kg and is placed under the rear seat. The DC-DC charging system also sits inside the cabin. The motor/generator is placed up high and Toyota has also taken precautionary measures to ensure the belt drive system is robust enough for use on off-road vehicles. A two-arm tensioner has been tuned for low noise and vibration and the ribbed side of the belt has a high-strength cotton fabric layer that helps reduce noise. With an overall weight increase of around 30kg, this system, it seems, more than carries its weight when it comes to efficiency.
To find out how it drives, wait for our review that's coming soon.
