Hori Yoichi.
1983 School of Engineering, University of Tokyo, Department of Doctoral Studies (Electronic Engineering) degree in 2000, Big East became a professor of electrical engineering. 2002 he was appointed Professor of Tokyo Institute of Production Technology.glue stick Research for the control of engineering and machinery and electronics, for many years in the electric vehicle control technology.
Nikkei BP Club: With the development of automotive electronics, glue gun the next 10 to 20 years will happen to the car?
Yoichi Hori: The biggest change is beyond the scope of automotive electronics to achieve rely on the power-driven vehicles. Electrical and software changes so much the car, as it is to become electric car. In other words, the future of cars will be connected with the power system. Conventional gasoline engine vehicles into hybrid and plug-in hybrids, and ultimately the development of a blueprint for the development of pure electric vehicles more practical.
Of course, a blueprint for other developments are to be achieved. For example there are bio-fuel vehicles and clean diesel vehicles. Fuel cell vehicles supporting the feeling of some songs. As long as adequate infrastructure, improve the power supply, the motor can be said is an ideal transport actuator drive, the train has proved it 100 years ago.
So consider it, even in comparison of all development blueprint, hybrid plug-in hybrids by the stage, and finally the development of pure electric vehicles to speculate very competitive. There are of course crude oil prices which brought forward the role of soaring, with the Hokkaido Toyako Summit is approaching, this development has become more clear.
After the vehicle is connected with the power system, vehicle performance will also change. Vehicles will become the "driving charge short times, similar to light rail transportation." Train and car What is the difference? Side of the train is traveling to obtain energy from the outside edge of transport, while the car is moving to bring most of the energy transport.
The traditional car with petrol continuous driving 400k ~ 500km, speed of up to 160km. Because the car manufacturers aim to achieve "no matter when and where any person" can drive the car. But now, is that not all cars need this level of performance? Taking into account the reality of purpose, in fact, many people believe that 1 day car travel only 20km or so, so you can speed up to 100km.
400k ~ 500km with continuous driving a car is even in the center of the Sahara desert sand can also be configured out of the performance of the desert. In city driving such vehicles is a waste. When it comes to the topic of low storage car, someone said, "If energy depletion broke down how to do", but how many people will break down when you travel to a place can not charge it? One need only to choose according to their own needs it.
Nikkei BP Club: In the evolution of the car, which of electronic technology will play a key role?
Hori Yoichi: If the vehicle access system, to achieve "short charging times running," then to have a go capacitor time. Cars with electric drive, you can not rely on that track as a train line along the frame power at any time. Like the gasoline engine car can not be stored for as the energy driving 400k ~ 500km. Therefore, with the construction of a small amount of energy supply to the power supply infrastructure. Simply load the car to quickly charge and discharge a small amount of the energy source can be.
So, this energy source is a rechargeable battery or a capacitor do? I personally feel better capacitors. High-current fast charging capacitor to this attractive. Although the discharge of the battery fast charging, but charging time is too long.
To use the rechargeable battery plug-in hybrids, for example, home, need to be charged 1 to 2 hours. Although in the near future may be reduced to 15 to 20 minutes or so, but still very long. While the capacitors charge only 30 seconds to complete. However, if the accumulation of too many capacitors, the charge also takes a long time and should therefore be small loads.
There are other characteristics of capacitors: no chemical change in the charge and discharge, longer life of the product; can correctly judge the remaining battery terminal voltage; do not use heavy metals, environmental impact and so on. Although the energy density as lithium ion rechargeable battery, but with the progress of the development of capacitor technology, could catch up later.