Photo: ctformacion.es
In case you don’t know why you have a gearbox in your car, that’s because a combustion engine revs to only around 8,000 rpm and has its sweet spots where it provides maximum power and torque. On the other hand, electric motors can go up to 20,000 rpm while offering peak torque in the whole range.
Which explains why they can go gearless. However, they use automatic transmissions in hybrid cars to make sure they work harmoniously with the gasoline unit, and Bosch now says electric motors could also be mated solely to such contraptions on EVs too.
The German automotive components supplier believes that selecting an optimum transmission ratio will make an electric motor even more efficient, and with global EV sales of 2.5 million units in 2020, we should get past this misconception and figure a way to adopt the idea.
Sounds interesting, especially for the regenerative braking part. A gearbox between the slowing wheels and the electric motor (that acts as a generator when braking) can keep the revs up so more electricity can be generated.
Whatever the case, don’t just expect to get your next generation Nissan Leaf with a four-on-the-floor, as Bosch here hints at high precision automatic gearboxes. It’s not like you’ll have to do downshifting for engine braking.
The German automotive components supplier believes that selecting an optimum transmission ratio will make an electric motor even more efficient, and with global EV sales of 2.5 million units in 2020, we should get past this misconception and figure a way to adopt the idea.
Sounds interesting, especially for the regenerative braking part. A gearbox between the slowing wheels and the electric motor (that acts as a generator when braking) can keep the revs up so more electricity can be generated.
Whatever the case, don’t just expect to get your next generation Nissan Leaf with a four-on-the-floor, as Bosch here hints at high precision automatic gearboxes. It’s not like you’ll have to do downshifting for engine braking.
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