Toroidal continuously variable transmission control apparatus

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United States of America Patent

PATENT NO 6931316
APP PUB NO 20030228952A1
SERIAL NO

10436162

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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In a toroidal continuously variable transmission (TCVT) control apparatus with a variator unit and a ratio control hydraulic system, an electronic TCVT control unit electronically feedback-controls a transmission ratio based on a deviation from a desired transmission ratio, and generates a normal-period command signal to be input to a step motor for compensating for the deviation. The control unit determines whether the deviation can be compensated for by electronically feedback-controlling the transmission ratio based on the deviation and generates an abnormal-period command signal to be input to the step motor to realize a step-motor displacement capable of shifting or diverging the transmission ratio to a speed-reduction side, while keeping a trunnion out of contact with a stopper in the direction of the trunnion axis, when the deviation cannot be compensated for by electronically feedback-controlling the transmission ratio based on the deviation.

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Patent Owner(s)

Patent OwnerAddress
NISSAN MOTOR CO LTDYOKOHAMA-SHI KANAGAWA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Joe, Shinichiro Kanagawa, JP 26 1292
Kawabe, Taketoshi Yokohama, JP 34 2009

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  • 182 Citation Count
  • G06F Class
  • 93.55 % this patent is cited more than
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Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges297635573292601661048662504516901 - 1011 - 2021 - 3031 - 4041 - 5051 - 6061 - 7071 - 8081 - 9091 - 100100 +050100150200250300350400450500550600650700750800850

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