Yamaha Hatsudoki Kabushiki Kaisha

Hiroaki Takechi

Tomohiro Ono

Masashi Yamaguchi

Yutaka Mizuno

Ichikai Kamihira

Mitsuo Fukaya

Masahito Suzuki

Koshi Sasaki

Tomio Anma

In an output controlling method for controlling output of a driving power source or motor installed in a vehicle, the relationship between a primary output-controller, which is manipulated by the user, and a secondary output-controller, which directly operates the motor, is regulated by control parameter subjected to evolution by using evolutionary computing based on at least one of the following: the user's characteristics, driving conditions, environmental changes, and deterioration of the drive power source with time. The evolution is conducted on-line or on a real-time basis. The primary output-controller includes an acceleration pedal or grip, and the secondary output-controller includes a throttle valve for an internal combustion engine or a running current controller for an electric motor.

Evolutionary controlling system for motor

Method for charging secondary battery and charger therefor

An electric motor control for a series-wound DC motor for providing speed control and also for controlling regenerative braking. The regenerative braking is energized either when the accelerator pedal is released and/or when a brake pedal is depressed. In addition, the control circuit limits the total vehicle speed and brakes the vehicle if it is stopped and begins to roll due to gravity.

Motor control device in electric motor-operated vehicle

Checking method of connection between secondary battery and battery

A device for shutting-off a fuel cell system includes a main power switch and a parallel latching switch circuit. The latching switch circuit remains closed until all operations necessary to safely shut down the system have been carried out and verified.

Shut-off device for fuel cell system

Growing community of inventors

Iwata, Japan

Hiroaki Takechi