VW ID 3.0. software update improves fast charge time by nine minutes

VW is preparing a software update for its ID. Series electric cars that increase the maximum charging speed from 125 kW to 135 kW on the larger 77 kWh battery.

Software 3.0 also includes improvements to navigation, voice control and driver assistance.

While 10kW may seem like a minor improvement (just 8%), it actually cuts the charge time from 38 minutes to 29 minutes for a 5-80% charge. The reason for this is a large shift in the load curve and a slower taper.

Batteries generally charge faster when they are nearly empty, and charging should slow down as the battery fills up. This is why the charging times are between 5 and 80% rather than 100%. The last 20% can take as long as the previous 80%.

On most cars, the maximum charge rate is only reached for a short time, and then the charge rate gradually decreases as the battery fills up.

(Graphic not to scale)

So in this update VW not only increased the peak, but also brought it earlier and reduced it later. As a result, we see a much larger area under the charging curve, which means more energy is entering the battery in a set period of time. This is how we can see only an 8% increase in peak charge rate but a 23% reduction in charge time.

VW CEO Herbert Diess recently demonstrated the upcoming software update in a publication on LinkedIn. The post includes a short video of the software update in action.

In the video, it showcases several other features of the update, including semi-automated lane changes, route planning with optimized fast charging (a very good thing to have access to the car) and voice recognition. improved.

VW is also planning two-way charging, which is still on track for an update next year.

Software update 3.0 will be available this spring.

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