Jump to content

litp.jpg

Lotus in the Peak
28th - 30th June 2024
  • Welcome to Midlands Lotus Owners Club (MLOC)

    Register now to gain access to all of our features. Once registered and logged in, you will be able to contribute to this site by submitting your own content or replying to existing content. You'll be able to customize your profile, receive reputation points as a reward for submitting content, while also communicating with other members via your own private inbox, plus much more!

    This message will be removed once you have signed in.

Mark H
Mark H

Lotus Evija: dynamic test notes (G. Kershaw)

Latest shakedown follows extensive computer simulations, plus multiple sessions in UK and Italy

 

Date: 6 December 2019
Driver: Gavan Kershaw, Director, Attributes and Product Integrity, Lotus Cars
Location: Hethel, Norfolk, UK
Car: Lotus Evija engineering prototype #2

 

Pre-test notes:

  • Latest shakedown follows extensive computer simulations, plus multiple sessions in UK and Italy.
  • Engineering prototype #2 is the most advanced of three on test, with customer-specification suspension, EV powertrain, brakes and full carbon-fibre body panels.
  • Features most complete interior yet, with key elements such as production seats and ‘ski slope-style’ floating centre console in place.
  • Fitted with hydraulics to support deployment of car’s active aerodynamics.

 

Driver’s notes:

“The car is in a completely pure state at the moment, with no stability control or torque-vectoring. This is so we can evaluate the fundamentals of the chassis, to create the mechanical advantage before the other layers, such as the electronics, are added. It means we can really read the car. Later we can tune what we’ve gained as a mechanical advantage as we add layers. It’s the Lotus way – get the fundamentals right from the start and use baseline aerodynamics, suspension kinematics and geometry to feel the vehicle’s response.

I feel really at home in it, it’s really driveable. We assessed the stability and agility through tight corners. We did brisk accelerations to work out the torque split and looked at tyre grip and response.

Lotus has always been about ‘input = output’, so if you do something you get a response, and that’s what we’re balancing now. It’s all about the detail so, for example, we’re validating the progressive response from the pedals. We know there’s an enormous amount of torque but drivers will only want it when they ask for it with their right foot. It’s about getting that throttle balance right.

We assessed steering-wheel angle versus vehicle response at different speeds to ensure the car feels nimble at 30mph as well as 200mph.

Through testing like this we can work on every element, like how connected you feel to the car, the driving position, location of the primary controls and visibility. It’s all about validating how the thousands of hours of computer simulations actually translate into the vehicle. It’s a two-fold process: proving they were the correct targets in the first place, and that the results are accurately translating into the car.

It’s also about bringing in experience from other vehicles – what we know from driving Exige and Evora, the Lotus GT race cars – and making sure that core Lotus DNA is all at its absolute best in the Evija.

It’s really exciting for me. I love this part of developing any Lotus because it’s proving the mechanical design and the physics behind everything is right, and then working with our engineers to enhance the experience and give the car a true Lotus character. It’s the step-by-step stuff we do with every Lotus – Evija is no different.

It’s another chapter in my 30+ years at this company. Yes, I’ve got a big smile on my face because it’s the latest tech, it’s a Lotus and we’re at the forefront again.”

 

 

 

Lotus_Evija_Hethel-1.jpg

Lotus_Evija_Hethel-2.jpg

Lotus_Evija_Hethel-3.jpg

Lotus_Evija_Hethel-4.jpg

User Feedback

Recommended Comments

There are no comments to display.



Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Add a comment...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


  • Servicing.....self or garage? Which are you?

    So, I did a Forum 'service' and 'servicing' search, but couldn't find much about the topic specifically. So thought Id kick one off instead. Servicing. Self or Garage? Lotus are renowned for the servicing required. Lots of specialists out there, and it does come at a premium. But... Changing things like oil, filters, brake/clutch fluids etc, are pretty much the same on a Lotus as on most other combustion engines. The Lotus Service Guides have the full list of things to cover too,

    Dave-hp
    Dave-hp
    Technical Talk 19

    Sporting Bears 🐻

    Hi, is anyone a member of sporting bears, I am thinking of joining but just wanted to see if anyone knows if you require any change in insurance policy?   Thanks.   Luke

    Luke Seagrave
    Luke Seagrave
    General Talk 5

    S1 Type 49 Elise Refresh

    And so the winter refresh of my S1 Elise started today. Hoping to take front clam of tomorrow. However of the 4 lower bolts that hold the lower rear to the chassis, 2 are spinning and 2 won't budge despite copious amounts of penetrative oil over the last few months. The Eagle eyed will spot my Dremel tool which I'm not looking forward to using to remove 4 bolt heads that have limited access. Currently on my list are replacing the driving lights brackets, shot blast and paint the tow post, n

    Badger02
    Badger02
    Technical Talk 182

    S2 driver side indicator fail

    Hello all, just out curiosity has anybody else experienced either one of there front side indicators taking flight mid drive ? I was driving back from Whitchurch yesterday and mine decided to do exactly that.  haven’t hit any pot holes, nor had I previously loosened it off around the seals etc…. Just very bizarre as I’ve never had a car like this where bits and pieces just fly off lol.  also when getting a replacement as I have now ordered are there any ‘upgrades’ you can do to prevent this

    Mik127
    Mik127
    Technical Talk 2

    Handbrake covers....whats yours look like?

    Ok, so my 2006 S2 has no handbrake cover. Looks like that's how most come out of the factory. Gear shift has the standard perforated leather. Im looking at the option of getting a HB cover, preferably to match the gear leaver cover, looking to keep it as OEM as possible.  What have other owners done with their handbrakes? Aftermarket to match? Or a set to swap out for a new look? Nearly all I have seen go over the top and outside. Any neat ones that tuck inside the HB slot? Show u

    Dave-hp
    Dave-hp
    General Talk
  • MLOC classifieds

  • MLOC garage

  • Member Statistics

    4,211
    Total Members
    1,800
    Most Online
    Craig O
    Newest Member
    Craig O
    Joined
×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue. Terms of Use