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公开(公告)号：US09933053B2
公开(公告)日：2018-04-03
申请号：US15286935
申请日：2016-10-06
发明人： Hajime Yoshimura , Yuji Matsuo , Tomoaki Ishikawa , Makoto Kataoka , Shigeki Kawashima , Norihiko Yokoyama , Naoyuki Miwa
IPC分类号： F16H9/12 , F16H59/00 , F16H61/00 , F16H63/00 , F16H9/14 , E01H5/09 , F16H61/662 , F16H63/06 , F16H9/18 , F16H55/56 , F16H7/08
CPC分类号： F16H9/14 , E01H5/098 , F16H9/18 , F16H55/56 , F16H61/662 , F16H63/06 , F16H63/062 , F16H2007/0846 , F16H2007/0868 , F16H2061/66213
摘要： A belt-type continuously variable transmission capable of continuously changing a speed reduction ratio of a driven pulley to a drive pulley, has a speed reduction ratio regulation mechanism that regulates a minimum speed reduction ratio of the driven pulley to the drive pulley. The driven pulley includes a fixed sheave, a movable sheave displaceable in an axial direction with respect to the fixed sheave, and a coil spring that urges the movable sheave toward the fixed sheave. The speed reduction ratio regulation mechanism has a swing arm that adjusts an allowable range in which moving away in an axial direction of the movable sheave with respect to the fixed sheave is possible, and a regulation drive section that drives the swing distal end portion of the swing arm to swing continuously.
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公开(公告)号：US20170114875A1
公开(公告)日：2017-04-27
申请号：US15286935
申请日：2016-10-06
发明人： Hajime Yoshimura , Yuji Matsuo , Tomoaki Ishikawa , Makoto Kataoka , Shigeki Kawashima , Norihiko Yokoyama , Naoyuki Miwa
CPC分类号： F16H9/14 , E01H5/098 , F16H9/18 , F16H55/56 , F16H61/662 , F16H63/06 , F16H63/062 , F16H2007/0846 , F16H2007/0868 , F16H2061/66213
摘要： A belt-type continuously variable transmission capable of continuously changing a speed reduction ratio of a driven pulley to a drive pulley, has a speed reduction ratio regulation mechanism that regulates a minimum speed reduction ratio of the driven pulley to the drive pulley. The driven pulley includes a fixed sheave, a movable sheave displaceable in an axial direction with respect to the fixed sheave, and a coil spring that urges the movable sheave toward the fixed sheave. The speed reduction ratio regulation mechanism has a swing arm that adjusts an allowable range in which moving away in an axial direction of the movable sheave with respect to the fixed sheave is possible, and a regulation drive section that drives the swing distal end portion of the swing arm to swing continuously.
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公开(公告)号：US09477231B2
公开(公告)日：2016-10-25
申请号：US14113988
申请日：2013-01-21
IPC分类号： F04B49/02 , G05D7/06 , F04B49/06 , F04C14/26 , F04B17/05 , F04C2/344 , F04C15/00 , F16H61/38 , F16H61/00 , F04C14/06 , F16H59/72
CPC分类号： G05D7/0617 , F04B17/05 , F04B49/02 , F04B49/06 , F04B2203/0209 , F04B2203/0605 , F04B2203/0606 , F04B2205/11 , F04C2/3446 , F04C14/06 , F04C14/26 , F04C15/008 , F04C2270/86 , F16H59/72 , F16H61/0025 , F16H61/38 , F16H2312/20
摘要： A control system for a variable displacement pump driven by a drive source for driving a vehicle is provided. The variable displacement pump pressurizes hydraulic oil, and is switchable between a full capacity operation in which a discharge flow rate is maximized and a partial capacity operation in which the discharge flow rate is lower than that in the full capacity operation. It is determined whether an operation for starting the drive source has been performed. A rotational speed of the drive source and a temperature of the hydraulic oil are detected. When the rotational speed of the drive source is equal to or higher than a predetermined rotational speed and the hydraulic oil temperature is equal to or lower than a predetermined temperature, immediately after the operation for starting the drive source is performed, the partial capacity operation of the variable displacement pump is performed. This control suppresses generation of untoward noises caused by the operation of the variable displacement pump when starting to drive the vehicle.
摘要翻译： 提供了一种用于驱动车辆的驱动源驱动的可变排量泵的控制系统。 可变排量泵对液压油加压，并且可以在排气流量最大的全容量运行和排气流量低于全容积运转的部分容积运转之间切换。 确定是否执行了用于启动驱动源的操作。 检测驱动源的旋转速度和液压油的温度。 当执行驱动源的旋转速度等于或高于预定转速并且液压油温度等于或低于预定温度时，在执行用于启动驱动源的操作之后，执行部分容量操作 执行可变排量泵。 该控制抑制了开始驱动车辆时由可变排量泵的动作引起的不良噪声的产生。
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