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1. 发明申请

WO2008102168A1 CONTINUOUSLY VARIABLE TRANSMISSION 审中-公开
标题翻译：连续可变传输
公开(公告)号：WO2008102168A1
公开(公告)日：2008-08-28
申请号：PCT/GB2008/050077
申请日：2008-02-07
申请人： TOROTRAK (DEVELOPMENT) LIMITED , DONOHOE, Brian , WINTER, Philip Duncan , FULLER, John William Edward
发明人： DONOHOE, Brian , WINTER, Philip Duncan , FULLER, John William Edward
IPC分类号： F16H61/664
CPC分类号： F16H61/6649 , F16H15/38 , F16H37/086 , F16H61/6648
摘要： The invention concerns an arrangement for control of a continuously variable transmission. The transmission includes a variator (10) having a movable torque transfer part (rollers 18) whose position corresponds to a variator drive ratio. A hydraulic actuator (28) is arranged to exert an adjustable force on the torque transfer part. The transmission further comprises a flow control arrangement which is arranged to receive as control inputs (a) the current position of the torque transfer part and (b) a demanded position for it. The demanded position may for example be determined by driver input. The flow control arrangement is adapted to supply through a s upply o utlet w hich c omniunicates w ith t he h ydraulic actuator a flow of fluid which is modulated in accordance with an error between the two control inputs. The flow of fluid increases with increasing error. A relief passage (110) leads from the said outlet to a pressure sink and is constricted so that fluid flow through it results in a p ressure at the hydraulic a ctuator which is g reater than that of the sink by an amount which corresponds to the rate of flow through the relief passage. The result is a mode of control of the transmission which possesses some of the advantages of both torque and ratio control.
摘要翻译：本发明涉及一种用于控制无级变速器的装置。变速器包括具有可移动转矩传递部件（辊子18）的变速器（10），其位置对应于变速器驱动比。液压致动器（28）布置成在转矩传递部件上施加可调节的力。变速器还包括一个流量控制装置，其被布置成作为控制输入（a）接收扭矩传递部件的当前位置，以及（b）为此请求的位置。所要求的位置可以例如由驾驶员输入确定。流量控制装置适用于通过液压致动器通过液压致动器供应，该流动流根据两个控制输入之间的误差进行调制。流体的流动随着误差的增加而增加。释放通道（110）从所述出口引导到压力沉降器并且被收缩，使得流体通过的流体导致在水力发生器处的压力，其比水槽的压力大一些，这对应于速率流过救济通道。结果是传动的控制方式，具有扭矩和比率控制的一些优点。

2. 发明公开

EP2113057A1 CONTINUOUSLY VARIABLE TRANSMISSION 审中-公开
标题翻译：无级变速器
公开(公告)号：EP2113057A1
公开(公告)日：2009-11-04
申请号：EP08709597.2
申请日：2008-02-07
申请人： TOROTRAK (DEVELOPMENT) LIMITED
发明人： DONOHOE, Brian , WINTER, Philip Duncan , FULLER, John William Edward
IPC分类号： F16H61/664
CPC分类号： F16H61/6649 , F16H15/38 , F16H37/086 , F16H61/6648
摘要： The invention concerns an arrangement for control of a continuously variable transmission. The transmission includes a variator (10) having a movable torque transfer part (rollers 18) whose position corresponds to a variator drive ratio. A hydraulic actuator (28) is arranged to exert an adjustable force on the torque transfer part. The transmission further comprises a flow control arrangement which is arranged to receive as control inputs (a) the current position of the torque transfer part and (b) a demanded position for it. The demanded position may for example be determined by driver input. The flow control arrangement is adapted to supply through a s upply o utlet w hich c omniunicates w ith t he h ydraulic actuator a flow of fluid which is modulated in accordance with an error between the two control inputs. The flow of fluid increases with increasing error. A relief passage (110) leads from the said outlet to a pressure sink and is constricted so that fluid flow through it results in a p ressure at the hydraulic a ctuator which is g reater than that of the sink by an amount which corresponds to the rate of flow through the relief passage. The result is a mode of control of the transmission which possesses some of the advantages of both torque and ratio control.
摘要翻译：本发明涉及一种用于控制无级变速器的装置。变速器包括变速器（10），该变速器具有位置对应于变速器传动比的可动转矩传递部（辊18）。液压致动器（28）布置成在扭矩传递部件上施加可调整的力。变速器还包括流量控制装置，该流量控制装置布置成接收（a）扭矩传递部件的当前位置和（b）它的所需位置作为控制输入。要求的位置可以例如由驾驶员输入来确定。流量控制装置适用于通过供液泵供应流体，该流体通过与液压致动器通信的流体流动根据两个控制输入之间的误差进行调节。流体的流量随着误差的增加而增加。一个泄压通道（110）从所述出口通向一个压力槽并被收缩，使得通过它的流体流动导致在液压密封器处产生一个比水槽的液压密封器更大的量，通过泄压通道的流量。其结果是变速器的控制模式，其具有扭矩和比率控制的一些优点。

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