PROBLEM TO BE SOLVED: To suppress an anxiety that a closing operation of a door becomes difficult resulting from the prohibition of the drive of a lift motor 22.SOLUTION: When vertically moving a seat arranged at a vehicle by a lift motor 22, an ECU 16 repeatedly detects a load of the lift motor 22 on the basis of a rotation number of the lift motor 22 and a drive current. Furthermore, when a seat SFL reaches an upper end from a lower end, the ECU 16 integrates the load which is detected in a this-time vertical movement period, and predicts a temperature rise amount of the lift motor 22 in the next vertical movement period on the basis of the integrated value. When a temperature which is obtained by adding the predicted temperature rise amount and an actual temperature of the lift motor 22 at a current time point exceeds a reference value REF, the ECU 16 prohibits the drive of the lift motor 22.SELECTED DRAWING: Figure 2

    【課題】リフタモータ22の駆動の禁止に起因してドアの閉動作が困難になる懸念を抑制すること。【解決手段】車両に設けられたシートをリフタモータ22によって上下動させるにあたって、ECU16は、リフタモータ22の回転数および駆動電流に基づいてリフタモータ22の負荷を繰り返し検出する。ECU16はまた、シートSFLが下端から上端に達したとき、今回の上下動期間に検出された負荷を積算し、次回の上下動期間におけるリフタモータ22の温度上昇量を積算値に基づいて予測する。予測された温度上昇量と現時点のリフタモータ22の実温度とを加算した温度が基準値REFを上回れば、ECU16は、リフタモータ22の駆動を禁止する。【選択図】図2


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    Title :

    SEAT DRIVE UNIT


    Additional title:

    シート駆動装置


    Contributors:

    Publication date :

    2018-04-05


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60N SEATS SPECIALLY ADAPTED FOR VEHICLES , Sitze besonders für Fahrzeuge ausgebildet



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