How the eHEV transmission works

[Karoq]

This is a fairly long very explicit video.
You must have a degree of mechanical knowledge to understand it. If you have, it is very interestinghttps://www.youtube.com/watch?v=QLUIExAnNcE

[Jocko]

That's a good one. Actually been posted several times here but many still to see it (including Auto Express it would seem).

[Jeff15]

Good video, I have watched it a few times.

[csp]

It all works seamlessly & efficiently so I like to have the energy flow on the dashboard display.
At 2000+ miles my trip computer B is showing 63.9 mpg. My MK3 Jazz displayed 48 mpg.

[sportse]

On the video he mentions that direct engine drive is only for speeds above 62mph - does anyone know if this is the same on the Jazz?

[John Ratsey]

On the video he mentions that direct engine drive is only for speeds above 62mph - does anyone know if this is the same on the Jazz?

When I first got my Crosstar and improvised a tachometer using an OBD2 reader and the Torque app on my phone I noted that direct drive engaged at about 43mph (give or take a bit) and 1700 rpm. This extrapolates to 2370 rpm at 60 mph. In electric drive the engine revs don't go significantly below 2000 rpm (which is the most efficient engine speed according to

(about 4 minutes)) and I assume that the engine efficiency reduction when running at 1700 rpm is less than the efficiency gain of using direct drive.