EVsmart blog Electric vehicles and Fast Chargers comfort Tesla "Model 3" disassembly display, etc. ~ "Technical Frontier 2021" Electric vehicle related reports and popular articles have recently been released and classified.

Tesla's "Model 3" disassembled and displayed

The physical object of the disassembled model 3 is displayed on the booth of Nikkei BP. There is no narrator here either.

Front desk (front desk)

The curved aluminum structure on the bumper section is eye-catching.

左の画像では、ラック&ピニオン式のステアリング機構、右の画像では、ブレーキピストンやブレーキ電子制御ユニットが確認できます。

Passenger cabin (cabin)

The aluminum rods set to pass through the dashboard part and the left and right side of the body are the dashboard frame. According to the handwritten notes of the health tape affixed to it, it can be inferred that its weight is 2 kg.

The state in which the steering wheel airbag is removed.

The back seat. The rectangular hole is where the battery is placed.

Lagrange space (space)

後部Lagrange space (space)部分。バスタブのように見える部分は、荷物を置けるスペースになっている。

Shoot from a different angle.

Powertrain battery

An unexpected little motor. About 20 centimeters in size.

Reducer. From the comparison of the A4 size booklet inside, it is about 50 cm x 25 cm.

Battery. On the left is a comparative display of the S-type battery made in 2015.

Something that further breaks down the battery has been shown in the picture.

Various controllers (controllers)

The vehicle in model 3 does not have a fuse.

The controller is based on a lot of.

Brake booster motor, camera, autopilot ECU, etc.

In the over-detailed decomposition display of Model 3, there are also some places that can not fully understand the meaning, just watching it is very exciting.

By the way, this booth is designed to promote many books released by the Nikkei BP, and the highlight is the complete decomposition of Model 3 and Model S. The price is 600000 yen for the whole article (900000 yen for online services) and 1.2 million yen for ECU articles (1.8 million yen for online services).

"Power supply Technology in driving" developed by Dongda University

The Fujimoto Fujita Research Laboratory of the University of Tokyo cooperated with Roma to develop the "Power supply Technology in driving" and launched a display stand for its cutting model.

The research and development is to assemble all the power units such as motors and inverters into the wheels and receive power supply from the power lines embedded on the road and drive without batteries.

There are two types of power supply. One is to configure the receiving coil on the outside of the wheel, and the other is to assemble the receiving coil inside the wheel.

This is the type of coil in which the receiving coil is arranged on the outside of the wheel (the inside of the wheel from the main body). The output power of the motor is 25kW, which can supply power in each round of 20kW driving.

This is the type that assembles the receiving coil into the inside of the wheel. A red plate-shaped receiving coil. According to the researchers, there are aluminum wheels and steel belts inside the tires between the receiving coil and the power supply line, which hinders the power supply. He also said that wheels need to be made of FRP and steel strips must be made of non-metallic materials, which is a future development topic.

Now, the test vehicle has reached the place where it can actually drive. He says he wants him to run in places like Toyota's Uwen City if he wants to put it into practice. The author believes that, as a wheelbarrow of golf courses and a mobile means of theme parks, it should be very practical.

The above introduces the EV relationship report of Techno Frontier 2021. The impression of the venue is that under the influence of the corona, the maximum capacity is 5000 people, although there are not many people, but not many. After listening to all kinds of commentators at the booth, it may be because of the coronal disaster, and the number of people present this year is overwhelmingly few. However, the "Hongguang MINI EV" and the model three-machine display always seem to be a popular booth with a sea of people.

(interview / Ueno / tr. by Phil Newell)