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专利名称:Apparatus for controlling pulley side-pressure of continuously variabletransmission in vehicle having function ofstopping engine idling
发明人:Eguchi, Takahiro, Honda Gijyutsu Kenkyusho
K.K.,Aoki, Akihira, Honda Gijyutsu KenkyushoK.K.
申请号:EP00113917.9申请日:20000630公开号:EP1070885B1公开日:20030205
摘要:In an apparatus for controlling a pulley side-pressure of a belt type
continuously variable transmission mechanism (5) provided, in series with a starting clutch(7), in a transmission of a vehicle having a function of stopping engine idling so that anengine (1) is automatically stopped, if the vehicle start-up is controlled from the state ofengine stopping in an ordinary way in which the pulley side-pressure is determined bythat belt transmission torque (TQBLTNOM) corresponding to an output torque of theengine (1) which is obtained by the rotational speed and the negative suction pressure ofthe engine (1), the pulley side-pressure becomes excessive by wrong judgement that theengine output torque is large, because the negative suction pressure is small at thebeginning of the engine starting. The durability then deteriorates and the specific fuelconsumption becomes poor. As a solution, at a vehicle start-up from the state of enginestopping, a belt transmission torque (TQBLTSC) corresponding to that transmission
torque (TQSCX) of the starting clutch (7) which is obtained by the engaging force of thestarting clutch (7) is compared with a belt transmission torque (TQBLTNORM)corresponding to the engine output. The pulley side-pressure (PDR, PDN) is eachcontrolled based on that transmission torque (TQDR) of the drive pulley (50)
corresponding to the smaller belt transmission torque and on the transmission torque(TQDN) of the driven pulley (51).
申请人:HONDA MOTOR CO LTD
地址:JP
国籍:JP
代理机构:Prechtel, Jörg, Dipl.-Phys. Dr.
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