Toyota Jidosha Kabushiki Kaisha

Denso Corporation

Kabushiki Kaisha Tokai Rika Denki Seisakusho

Nippon Soken, Inc.

Mikito Yagyu

Tomohisa Kishigami

Tomoyuki Funayama

Yoshihisa Sato

Masachika Kamiya

Ikuo Hayashi

Tomoo Kakegawa

Toshihiro Wakamatsu

Kenji Tomita

Kenji Tanaka

Kazunori Sakai

Masato Kume

Hiroshi Honda

Yuji Fukano

Mitsuo Mori

An electric steering lock apparatus that protects an actuator from overheating without enlarging the actuator. The electric steering lock apparatus includes a lock pin engaged with a steering shaft to lock the steering shaft. An actuator moves the lock pin between a lock position in which the lock pin is engaged with the steering shaft and an unlock position in which the lock pin is disengaged from the steering shaft. A control unit controls the actuator. The control unit generates a calculated value related to operation time of the actuator and suspends operation of the actuator when the calculated value is greater than a predetermined operation suspension threshold value.

Electric steering lock apparatus for protecting actuator from overheating

A multiplex communication system having a data repeater, which can prevent data from being lost so as to improve reliability of data communication, when a data repeater of a multiplex communication system repeats data. A multiplex communication system is made up of a plurality of communication groups including a plurality of communication lines and a data repeater. The data repeater is made up of receiving buffers, sending buffers, a data controller and a transfer-address table. The data controller selects multiplex communication lines through which the received data is to be repeated and transfers the received data thereto. The data controller has a priority-reset means for increasing a priority of a received data before being sent. The priority-reset means prioritizes a sending of the data from the data repeater, even if the data sent from the data repeater collides with the other data on the multiplex communication lines through which the received data is to be repeated. In this way, the priority-reset means prevents the data waiting for being sent in the data repeater from being lost by being overwritten with newly received data.

Data repeater and multiplex communication system using the same

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Toyota, Japan

Mikito Yagyu