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Furukawa Review No.23

Development of a Seat Module for Automobiles

Hirotomo Shiozaki, Akihito Yahara, Toshikazu Doi, Shigeki Motomura, Atsushi Sasaki, Toshihiro Kawazoe, Takayuki Matsuoka, Shoji Hara, Shigeki Itabashi, Eiji Ichii and Satoshi Kawai


A seat module has been developed for a minor modification program of Toyota's Land Cruiser, which was put into quantity production in August 2002.
The core of a seat module is an electronic control unit with a memory function to memorize and retrieve the driver's seat position, and a number of peripheral components are integrated therein.
The developed product integrates the electronic control unit, wire harness, unit casing, and fixing bracket, thereby aiming at cost reduction, upgrading of ease of assembly, and weight reduction.
One of the features of the development is that it implements an infrared ray communication system for the control of the body system of vehicle --for the first time in the world. This paper reports on the development of the module, focusing on the development of the infrared ray communication system.

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