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公开(公告)号:US4880474A
公开(公告)日:1989-11-14
申请号:US105598
申请日:1987-10-08
申请人: Haruo Koharagi , Kazuo Tahara , Tsunehiro Endo , Kunio Miyashita , Yoshitaro Ishii , Fumio Jyoraku , Syuji Watanabe , Hisanori Toyoshima , Kohichi Saito , Wakichiro Hishi , Koujirou Yamashita
发明人: Haruo Koharagi , Kazuo Tahara , Tsunehiro Endo , Kunio Miyashita , Yoshitaro Ishii , Fumio Jyoraku , Syuji Watanabe , Hisanori Toyoshima , Kohichi Saito , Wakichiro Hishi , Koujirou Yamashita
CPC分类号: A47L9/2889 , A47L9/2826 , A47L9/2831 , A47L9/2842 , A47L9/2894 , H02P23/0077 , H02P6/06 , Y10S388/904 , Y10S388/93
摘要: Method and apparatus for operating a vacuum cleaner in which by detecting a rotational speed of a variable speed fan motor adapted to give a suction force to the cleaner and its change range, the choking state of the filter and the state of the cleaned surface are discriminated, and a speed command of the fan motor is corrected on the basis of the result of the discrimination, and the comfortable cleaning can be performed by the optimum suction force.