How much does an electrician slow down energy recovery? Very much: I like climbing mountains

If you are not already driving an electric vehicle and want to experience "regenerative braking", look for a large hill nearby. The deceleration due to the carriageway will correspond to recuperation, that is, the mechanism for recovering energy from the wheels. What mountain to look for? It's easy to calculate.

Table of contents

Slide, or dry recovery test
- We convert degrees into percentages, and it turns out ... the road to the Shklyar pass

Mortal Motortrend.com has made accurate measurements of the deceleration caused by energy recovery (recovery). Tesla Model 3, Nissan Leaf and Chevrolet Bolt have been tested. Here are the results that were obtained:

-0,2g (acceleration due to gravity) for Nissan Leaf 2,
-0,09g in low regeneration mode and -0,16g in high regeneration mode for Tesla 3,
-0,19g, -0,21g and -0,26g in Drive / Low / Low modes, reinforced by a button on the steering wheel for the Chevrolet Bolt.

How do I convert these values to road slope? It's simple. It is enough to process each of these values with the arc sin function. We then get the slope of the hills in degrees:

11,5 degree tilt for Nissan Leaf 2,
Tilt 5,2 degrees / 9,2 degrees for Tesla 3,
Tilt 11 degrees / 12,1 degrees / 15,1 degrees for Chevrolet Bolt.

> Tesla Model S P85D highway range versus road speed [CALCULATION]

We convert degrees into percentages, and it turns out ... the road to the Shklyar pass

It's a lot? Highly! There are such slopes in Poland in very hilly areas, mainly in the mountains. It is worth remembering, however, that Polish symbols use a percentage, not a slope. How do I convert degrees to percent slope? Just use the tangent function:

Slope 20,3% for Nissan Leaf 2,
Slope 9,1% / 16,2% for Tesla 3
19,4 percent / 21,4 percent / 27 percent incline for the Chevrolet Bolt.

For comparison, sign A-23 “Steep Approach” is used in Poland for ascents with a gradient of more than 6 percent and roads with difficult curves. This allows energy regeneration to slow down the electrician's work, even when descending large hills.

In the photo: Nissan Leaf (c) Nissan; illustrative photo

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