CONTROLLER OF WATER PUMP

• Main Authors: ANDO HIROKAZU, WATANABE HIROTAKA, TAKAGI NOBORU, YAMAGUCHI MASAAKI, SASAKI RYUSUKE, KANEKO MASATO, HIRATSUKA YUTA, AOYAGI TAKAHIKO
• Format: Patent
• Language: English; Japanese
• Published: 04.06.2020
• Subjects: BLASTING; COOLING OF INTERNAL-COMBUSTION ENGINES; COOLING OF MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; HEATING; LIGHTING; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; NON-POSITIVE DISPLACEMENT PUMPS; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; STEAM ENGINES; WEAPONS

To provide a controller of a water pump capable of suppressing step-out.SOLUTION: A controller for controlling an electric water pump is configured to, when a rotation speed of the water pump from a first rotation speed to a second rotation speed, sequentially change a duty ratio of electrification to the water pump to a first duty ratio corresponding to the first rotation speed, a second duty ratio greater than the first duty ratio, and a third duty ratio larger than the second duty ratio and corresponding to the second rotation speed in this order.SELECTED DRAWING: Figure 3 【課題】脱調を抑制することが可能なウォータポンプの制御装置を提供することを課題とする。【解決手段】電動のウォータポンプを制御する制御装置であって、前記ウォータポンプの回転数を第１の回転数から第２の回転数に上昇させる場合、前記制御装置は、前記ウォータポンプへの通電のデューティ比を、前記第１の回転数に対応する第１のデューティ比、前記第１のデューティ比よりも大きな第２のデューティ比、および前記第２のデューティ比よりも大きく前記第２の回転数に対応する第３のデューティ比へと順に変化させるウォータポンプの制御装置。【選択図】図３