The category: Car

THROWBACK

Do you remember this? It’s from one of our first testdrives. And now it’s only a few days until the Car Unveiling event where you’ll find out how Solveig looks like for real!

 

Car

RENDERING BY SEBASTIAN LADAN

Our guy Sebastian Ladan has made a new rendering for us. And it’s amazing – thanks, Sebastian! Enjoy this picture, cause now you’ll have to wait until the Car Unveiling event on the 28th of August. Then you’ll find out how Solveig looks for real. We do of course hope to see you there, but until then, print this rendering and put it on your wall because it’s really something extra!

 

Car

THANKS TO LIMMARED RADIO & DATA AB

We’d like to give Limmared Radio & Data AB a big thanks! They have given us these walkie-talkies that we’ll need and use in Australia. What would we do without our kind sponsors? Thanks once again!

 

Car, Sponsors

USING DOCOL STEEL

Our dear sponsor Docol (SSAB) recently added a piece of news about us to their webpage. We’re so happy to hear that they follow us and our journey – but we’re more happy to have them as our sponsor! Thanks! In the news article one of our team leaders, John Ingold, write a story about why we use high-strength steel in our solar car Solveig. Go to this webpage to read it or check it out below!

 

Car, News media, Sponsors

KEEP THE DATE: 28TH OF AUGUST!

This photo is from the Spring Lunch event that we held for our sponsors. This is how Solveig looked like then. However, we can’t be more excited about the Car Unveiling event that will be on Monday the 28th of August, as we’ll then show the entire Solveig for the first time. Keep the date!

 

Car, Event

SATURDAY WORKSHOP

Today the team got together to weld, lathe, screw, programme and build on the solar car in different ways. It was not only the engineers who went to this Saturday workshop but people from the management side of the team showed some engineering skills too. Here are some photos from today’s workshop!

 

Car

THANK YOU, PRIOPLASTIC!

We’d like to say thank you so much for giving us these, PrioPlastic!

 

 

 

Car, Sponsors

THE MOTOR HAS ARRIVED!

Today our motor from Nomura arrived. We think that it looks very beautiful and it’ll make our solar car roll so smoothly on the Australian roads!

 

Car

HAPPY MONDAY!

How was your Midsummer weekend? Very good we hope! We also hope that you enjoy this sunny Monday because you never know if it’ll rain tomorrow again.

 

And how are things in the JU Solar Team world? Thanks for asking! We’ll ship the big box from Nefab to Australia this week, so we put the last things in it and make it ready for takeoff. We’ve also done a lot of work on the carbon fiber, as you can see on the last picture. Things are rolling and we’ll keep you updated cause we like to keep ourselves busy also during the summer!

 

Car

CAR PRESENTATION PART 10 OF 10: BRAKES

The Story about Solveig has come to an end. This blog post is about the brakes and it’s the tenth and final part in the Story. We hope that you’ve enjoyed it!

 

THE BRAKES

 

The braking system of this year’s solar car is made out of many customised parts. The brake calliper and master cylinders come from Shimano, and each calliper has two pistons. The brake pedal is entirely customised to combine two master cylinders into one foot pedal. The braking system will be significantly lighter than previous years and the performance will increase significantly.

 

Car

BATTERY GOING TO AUSTRALIA

Within a couple of weeks, on the 28th of June, we’ll ship the box with the battery from Sweden. Then it’ll travel at sea for 60 days to get to Australia! With this blog post we’d like to thank all the involved companies that have helped us with the shipping.

 

First, we’d like to thank Nefab for helping us packetizing our lithium-ion battery. The Nefab Group is a global industrial packaging manufacturer specializing in complete packaging solutions that reduce its customers’ total costs while minimizing environmental impact. Nefab is a leading provider of packaging solutions for the Telecom, Energy, Vehicle, Healthcare equipment and Aerospace industries. Since its inception in 1949, Nefab has grown from a local product-oriented company into a market-oriented company with a prominent position in the global packaging market. Thank you, Nefab, you’re great!

 

 

With this properly classified box, Patrick from DGM Sweden helps us with certification. You see, you can’t ship a battery just like that as the goods might be dangerous, so you need to have someone who can certify the box with the battery. DGM is the right company – thanks a lot for helping us with this!

 

 

Another company that has helped us with all this, is Handelskammaren Jönköpings Län. They have issued the ATA Carnet – the international Merchandise Passport – that is needed to ship the battery. Handelskammaren Jönköpings Län is one of eleven independent Chambers of Commerce in our country. The Swedish Chambers are private law Chambers (privately owned), based on voluntary membership. The regional focus of the Swedish Chambers separates them from other business organizations. By law the Swedish Chambers are authorized to issue documents and certificates needed for international trade. Internationally the Chamber of Commerce is a link in a chain of about 12 000 Chambers all over the world, forming a unique network of business contacts. Thanks for your help, Handelskammaren!

 

 

The forwarding agent of the battery is Key Logistics, which our Logistics Manager Hanna Steinum has had daily contact with. This company has been happy to be the forwarding agent of the battery and the box. Key Logistics is a medium sized privately owned logistic company. They are active in most markets around the world but have an extra focus on imports from the Far East. With the help of the developed skills of Key Logistics staff, they have refined the company to become a personal logistic agent that takes an overall approach of transportation needs. The range of their expertise gives the customers an invaluable sense of security in knowing that Key Logistics can always offer a competitive product no matter if it is: sea, air, road, courier or cargo. Thank you, Key Logistics, for being our partner!

 

 

As you now understand, there is A LOT of work with the shipping of the battery. We’re extremely happy that all of the companies mentioned above have helped us with this – you’re fantastic!

 

The photo below is a photo of Hanna and Erik. This is when they solder on the battery cell lines to make them suit our 3D-printed box. We’re many students who put many hours on this work – next week the battery must be finished and ready for departure!

 

Car

CARBON FIBER WORK

If you want to have a carbon fiber body, you have to work and make one! And that’s what we’re doing right now at Marström in Västervik.

 

Car

CAR PRESENTATION PART 9: ELECTRONICS

Part 9 in our Story about Solveig, comes here. It’s about the electronics – enjoy!

 

THE ELECTRONICS

 

We have been developing our own system to read the data from the motor controller, the battery and solar cells. The system is based on a STM32 processor that is used to log data from a CAN-bus that all the components are connected to.

 

With help from the data that is logged we can decide the driving strategy in real time. This gives us the possibility to read the power that is left in the battery so we can plan to give the last power when we are crossing the finish line.

 

Car

CAR PRESENTATION PART 8: MOTOR

The Story about Solveig is slowly coming to an end, but there are still a few parts left. This is the eighth part and it’s about the motor.

 

THE MOTOR

 

The motor for the JU Solar Team will be coming from Japan this year. We have it custom made from Nomura Co. and Mitsuba. The motor is very special because of its “sliding coil” rotor. Generally, a motor has one set speed where it performs at maximum efficiency. Since this rotor can slide, our motor has a wide range of speeds so that Solveig can travel at maximum efficiency.

 

Car

SPONSOR PRESENTATION: SWERUB

Even though it’s summer holiday, we keep on building the solar car. The suspensions have been upgraded with rubber components from Swerub. Their vibration absorber are perfect for our car and will give us a comfortable drive in Australia. This is what Swerub write about their business themselves:

 

“In heat pumps. On construction sites and oil rigs. In lawnmowers, chainsaws and laundry rooms. Our products are everywhere. We offer a wide range of vibration absorbers and other rubber components to seal and protect. At our two sites in Ekshärad and Sunne, we are fullt equipped to develop all kinds of components to suit your business requirements.If you can’t immediately find what you’re looking for, we can help. In fact, we love challenges and are expert at adapting to diverse needs. At Sunne, our close collaboration with neighboring rubber manufacturers means we have the resources of a really large rubber factory. With our expertise and experience, we deliver quality products all over the world. Welcome to Swerub!”

 

We think they are awesome – thanks for being our sponsor!

 

Car, Sponsors

CAR PRESENTATION PART 7: BATTERY

The seventh part in our story about Solveig is about the battery. Enjoy!

 

THE BATTERY

 

Compared to last year we are this year designing and building our own battery pack. This route is very challenging but it also gives us the possibility to get the most capacity. Elforest has been a major supporter with developing the best BMS (Battery Management System – including battery components) we have ever had.

 

Car

CAR PRESENTATION PART 6: DRIVER’S ENVIRONMENT

It’s already time to present the sixth part in the Story about Solveig. If you’ve missed any of the parts, scroll down to read them first, and if not, enjoy this part about the driver’s environment!

 

THE DRIVER’S ENVIRONMENT

 

The engineering behind the operator environment connects the driver with the car through the mechanical and electronic functions. We are aiming to make the driver and the car as one. This design considers three categories; comfort, design and the restrictions from the race. To create the best and the most comfortable driver’s environment is a very important job since the driving time can be up to 4 hours in a heat of 50 degrees. The design is racer inspired, the chair is made of carbon fibre from Tillett Racing Seats, the seatbelt is a four point seatbelt from Sparco and the steering wheel is customised and designed to fit the car, also made of carbon fibre.

 

Car

CAR PRESENTATION PART 5: THE BODY

We hope that you like our story about Solveig as much as we do. Here comes the fifth part which is about the body – enjoy!

 

THE BODY

 

To keep the weight of the car low we are making the body out of carbon fiber. This is done by the honeycomb material and the carbon fiber prepreg that creates a firm weight-optimized body. The body of the car is designed to be optimized for aerodynamics and to protect the car from weather.

 

Car

CAR PRESENTATION PART 4: SOLAR CELLS

The fourth part of the story of Solveig is here. This part is about the solar cells!

 

THE SOLAR CELLS

 

The JU Solar Team will be acquiring our solar cell array from the manufacturer SunPower and assembler Gochermann. Typical residential and commercial solar cells have about 14% efficiency, but our silicon-based photovoltaic cells have an ultrahigh 24.3% efficiency. These are the most efficient silicon cells available in the world today.

 

Car

CAR PRESENTATION PART 3: STEERING

We hope that you enjoy our story about Solveig. Here comes the third part!

 

THE STEERING

 

The steering is a mechanical construction to get a good driving impression and feeling. The steering is made out of standard components which also is easy to replace if anything would break. The construction of the steering is constructed and optimized to fit this kind of car to obtain the best weight. The components of the constructions contain both steel and aluminium.

 

Car