Kabushiki Kaisha Komatsu Seisakusho

Komatsu Forklift Co., Ltd.

Takao Kamide

Kentaro Nakamura

Akira Nemoto

Koichi Yamashita

Shinji Maeda

Takaichi Saigo

Tetsuya Nishiki

Shinichi Hitomi

Katsumi Yoshida

Kiyoshi Note

Katsuhiro Iida

Norio Ueda

Work automation apparatus for hydraulic drive machines

Apparatus for controlling hydrualic pump

An automatic control system for a vehicle such as a fork lift truck automates the transportation, loading and unloading operations of the vehicle in a work area. Leader cables disposed in the work area are supplied with instruction signals of respectively different frequencies from terminal units in response to commands from a central control device. Any cable or a combination of two cables forms a ehicle guideway along which the travel of the vehicle is controlled by instruction signal pickup coils on the vehicle and along which loading and unloading stations for the vehicle are located. Loading and unloading are effected without using the leader cables, the necessary instruction signals then being received from the central control device by the vehicle from a coil disposed at the loading and unloading station.

Automatic control system for a loading and unloading vehicle

A vehicle is guided along a desired path forwardly and backwardly by electromagnetically detecting deflection and attitude angle of the vehicle with respect to a guidance cable carrying an alternating current and producing a magnetic field. The deflection of the vehicle thus detected is compared with a predetermined deflection value from the guidance cable to produce an attitude angle setting signal, which is subsequently compared with the detected attitude angle to produce a steering control signal according to which the vehicle is controlled to run a desired path.

Unmanned vehicle travel control device

A steering control system of a type wherein an unmanned vehicle is transferred from one cable to another of two crossing cables by a programmed turning operation. According to the invention, a smooth transferring of the vehicle from the programmed turning to a guided travel along the other cable can be achieved. Conditions for the transferring of the vehicle are: (a) an output of a posture angle detection coil is within a predetermined low range, (b) the vehicle has moved by a predetermined distance after starting of the programmed turning and (c) the vehicle is not out of course, i.e. an output of a reference phase detection coil is greater than a preset value.

Steering control system for an unmanned vehicle

Growing community of inventors

Oiso, Japan

Takao Kamide