and Mechanics/Toichi Sawada
We tried to interview to Toichi Sawada to have more knowledge and see and think an issue from
various perspectives.
Some of comment was in summary, so we3 have some mistakes, I’m sorry.
We also wrote summary “”
First, it is going to be HV and EV. It means removing possible waste energy .Therefore it is
essential to weight saving.
I think it goes to make around drivers.
For example holding it for the same slope and incline the seat at the time of curve to reduce G
(centrifugal force to act when a car curves) hanging for the driver lol
I think it better that the center of gravity is on a mid ship or battery box.
Because such is more stable car body.
A wheel is cut anywhere so it is interesting that a tire becomes independent each.
-For example, they controls it so that a seat turns, We couldn't be given some great ideas without
he proposed us.
of sports car which is such as Bugatti Veyron?
⇒Ｒ＝μａΔ＾＋μｒＷ
The air resistance of car is can be shown this equation.
(R=air resistanceμa=air resistance coefficient AΔ^=area μrW=rolling coefficient×weight )
I would love you to study physic with connecting real things.
y
x-You can regard x-axis to speed of the car [km/h] and regard y-axis to air resistance[R].
When I took amount of change Δ of the same size on the left side and the right side on x-axis, the
amount of change of the air resistance of the y-axis comes to have a bigger right side (I'm sorry
to read hard ).
So, the faster, the larger air resistance and it increases the area. It means more increase effect of
brake using movable flap, active rear spoiler. Also it can increase the weight by reactions of
lifting power of upward.
Ｆ＝μＮ（Ｎ＝Ｗ）
Ｆ＝μＷ
Because of that,
In summary, if the speed of the machine is fast, the pneumatic brake is fast, and an effect increases.
Then is there merit or demerit?
>Now it is difficult to be practical use the engine self.
However, there is ※hydrogen rotary engine to be practical use.
The difference that is more decisive than a conventional engine (reciprocating engine) is speed to burn.
Compressing it with a piston with the reciprocating engine and give vent, combustion is over in it,
but, as for the hydrogen rotary engine, speed gets longer because I continue burning.
Several days ago, talking with the person connected Mazda, they never give up to make hydrogen
rotary engine lol
-※hydrogen rotary engine... Rotary engine with used hydrogen.
It is that the difference with the fuel cell-powered vehicle burns hydrogen directly and gets power.
Thank you for giving worth of lecture.
Thank you so much Mr. Sawada for answering.
Written by S
