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公开(公告)号：US10082206B2
公开(公告)日：2018-09-25
申请号：US15346349
申请日：2016-11-08
发明人： Chi-Kuan Kao , Chunhao J. Lee
CPC分类号： F16H61/66259 , F16H9/18 , F16H59/68 , F16H59/74 , F16H2059/366 , F16H2061/009
摘要： A powertrain assembly includes a continuously variable transmission having a variator, an input member, an output member and a torque converter clutch. An input sensor configured to receive a signal from the input member. An output sensor is configured to receive a signal from the output member. The assembly includes a controller having a processor and tangible, non-transitory memory on which is recorded instructions for executing a method of controlling the continuously variable transmission. If the torque converter clutch is locked, the controller is programmed to obtain respective readings at predefined time intervals which are collected for the respective signals from the input sensor and the output sensor, until a predefined time window is reached. First and second fast Fourier transforms are obtained of the respective signals. The continuously variable transmission is controlled based at least partially on the first and second fast Fourier transforms.
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公开(公告)号：US20170159813A1
公开(公告)日：2017-06-08
申请号：US15346349
申请日：2016-11-08
发明人： Chi-Kuan Kao , Chunhao J. Lee
IPC分类号： F16H61/662 , F16H59/74 , F16H59/68 , F16H9/18
CPC分类号： F16H61/66259 , F16H9/18 , F16H59/68 , F16H59/74 , F16H2059/366 , F16H2061/009
摘要： A powertrain assembly includes a continuously variable transmission having a variator, an input member, an output member and a torque converter clutch. An input sensor configured to receive a signal from the input member. An output sensor is configured to receive a signal from the output member. The assembly includes a controller having a processor and tangible, non-transitory memory on which is recorded instructions for executing a method of controlling the continuously variable transmission. If the torque converter clutch is locked, the controller is programmed to obtain respective readings at predefined time intervals which are collected for the respective signals from the input sensor and the output sensor, until a predefined time window is reached. First and second fast Fourier transforms are obtained of the respective signals. The continuously variable transmission is controlled based at least partially on the first and second fast Fourier transforms.
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公开(公告)号：US20160201780A1
公开(公告)日：2016-07-14
申请号：US14592325
申请日：2015-01-08
CPC分类号： F16H37/022 , F16H1/46 , F16H9/10
摘要： A torque transmission device for a powertrain system includes a continuously variable unit (CVU) of a continuously variable transmission (CVT) arranged in parallel with a fixed-gear-ratio transmission. The fixed-gear-ratio transmission includes first and second planetary gear sets and a plurality of transmission clutches, wherein the first and second planetary gear sets are arranged to transfer torque between an input member and an output member in one of first and second fixed-gear-ratio modes by selectively activating the transmission clutches. The torque transmission device operates in a first fixed overdrive input/output speed ratio when the CVU input clutch is deactivated and a first set of two of the transmission clutches is activated. The torque transmission device operates in a second fixed overdrive input/output speed ratio when the CVU input clutch is deactivated and a second set of two of the transmission clutches is activated.
摘要翻译： 用于动力系统的扭矩传递装置包括与固定齿轮比变速器并联布置的无级变速器（CVT）的无级变速单元（CVU）。 固定齿轮比变速器包括第一和第二行星齿轮组和多个变速器离合器，其中第一和第二行星齿轮组布置成在第一和第二固定齿轮组之一中的输入构件和输出构件之间传递扭矩， 通过选择性地启动变速器离合器来进行变速比模式。 当CVU输入离合器被停用并且第一组两个变速器离合器被激活时，转矩传递装置以第一固定过载输入/输出速度比工作。 当CVU输入离合器被停用并且第二组两个变速器离合器被激活时，转矩传递装置以第二固定过驱动输入/输出变速比工作。
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