192 clutches and power-stop control – Vortex-flow drive and clutch – With brake
Patent
1990-09-26
1991-10-29
Bonck, Rodney H.
192 clutches and power-stop control
Vortex-flow drive and clutch
With brake
192 0076, 192 82T, F16D 4102
Patent
active
050607707
ABSTRACT:
A method of controlling the rotational speed of a continuously variable transmission having a pair of pulleys which each includes a fixed pulley member and a movable pulley member, including the steps of decreasing and increasing the groove width between each pair of fixed and movable pulley members to respectively increase and decrease the rotational radius of a belt wrapped around the pulleys. A hydraulic clutch is provided and is connected to and disconnected from the driving force of the transmission in response to clutch pressure applied thereto. A control section is provided for calculating a desired clutch pressure for the hydraulic clutch. This desired clutch pressure is based on an engine torque value and a desired engine rotational speed. When the clutch is in a normal starting mode and certain other predetermined conditions are satisfied, the control section is used to adjust the desired engine rotational speed based on the temperature of the oil in the transmission.
REFERENCES:
patent: 4678069 (1987-07-01), Yoshimura et al.
patent: 4964317 (1990-10-01), Murano et al.
Hirano Sadayuki
Tatsumi Takumi
Yamamoto Hiroaki
Yamashita Yoshinori
Bonck Rodney H.
Mitsubishi Denki & Kabushiki Kaisha
Suzuki Jidosha Kogyo Kabushiki Kaisha
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