-
公开(公告)号：EP3872371A1
公开(公告)日：2021-09-01
申请号：EP19877500.9
申请日：2019-10-21
摘要： A power generation controller of an aircraft includes a low-temperature start-up control section and a power generation control section. When it is determined that an oil temperature of a hydraulic actuator configured to change an operation position of a speed change element of a hydraulic transmission satisfies a predetermined low-temperature condition when starting up an aircraft engine, the low-temperature start-up control section sets a power generator to a power non-generating state and controls the hydraulic actuator such that the speed change element is positioned at an acceleration side of a median in a speed change range. When it is determined that the oil temperature satisfies a predetermined low-temperature start-up completion condition, the power generation control section sets the power generator to a power generating state and controls the hydraulic actuator in accordance with a rotational frequency of the aircraft engine.
-
公开(公告)号：EP4134775A1
公开(公告)日：2023-02-15
申请号：EP22199058.3
申请日：2018-05-16
发明人： KOBAYASHI, Shuma , MATSUDA, Kippei , OOTSUKI, Satoshi , NAKASHIMA, Kenichi , IMAI, Hideyuki , ABE, Akihito
IPC分类号： G05D3/12 , F16H61/02 , F16H61/664
摘要： A position controller (140) that performs position control by outputting a drive signal to a control valve (25) of a hydraulic actuator (20) that changes an operating position of a transmission element (16) so as to change a transmission ratio of a continuously variable transmission (10), the position controller (140) comprising:
an oil temperature acquisition unit (35) that acquires information of an oil temperature of the hydraulic actuator (20);
an actual transmission ratio acquisition unit (44) that acquires an actual value of the transmission ratio;
a position acquisition unit (42) that acquires an actual value of an operation position of the transmission element (16);
a target position calculation unit (48) that calculate a target value of the operating position of the transmission element (16) by first closed-loop control (LP1) so as to reduce a deviation between a command value of the transmission ratio and the actual value of the transmission ratio;
a position control unit that calculates an operation command value for the control valve by second closed-loop control (LP2) so as to reduce a deviation between the target value of the operation position of the transmission element and the actual value of the operation position of the transmission element; and
a gain setting unit (160) that changes a gain (Gi) of the first closed-loop control (LP1) so that sensitivity of the first closed-loop control (LP1) decreases as the oil temperature decreases.-
公开(公告)号：EP3633485A1
公开(公告)日：2020-04-08
申请号：EP18810070.5
申请日：2018-05-16
发明人： MATSUDA, Kippei , KOBAYASHI, Shuma , OOTSUKI, Satoshi , NAKASHIMA, Kenichi , IMAI, Hideyuki , ABE, Akihito
IPC分类号： G05D3/12 , F16H61/02 , F16H61/664
摘要： A position controller that performs position control by outputting a drive signal to a control valve of a hydraulic actuator that changes an operation position of an object, includes: a position acquisition unit that acquires an actual value of an operation position of the object; a position control unit that calculates an operation command value for the control valve by closed-loop control so as to reduce a deviation between a target value of the operation position of the object and the actual value; and a vibration wave application unit that applies a vibration wave to a signal of the closed-loop control so that the operation command value vibrates at a predetermined frequency at start of the closed-loop control.
-
公开(公告)号：EP3633484A1
公开(公告)日：2020-04-08
申请号：EP18808789.4
申请日：2018-05-16
发明人： KOBAYASHI, Shuma , MATSUDA, Kippei , OOTSUKI, Satoshi , NAKASHIMA, Kenichi , IMAI, Hideyuki , ABE, Akihito
IPC分类号： G05D3/12 , F16H61/02 , F16H61/664
摘要： A position controller includes: an oil temperature acquisition unit that acquires information on an oil temperature of a hydraulic actuator; a position acquisition unit that acquires an actual value of an operation position of an object; a position control unit that calculates an operation command value for a control valve of the hydraulic actuator by closed-loop control so as to reduce a deviation between a target value of the operation position of the object and the actual value; and a gain setting unit that changes at least one gain of the closed-loop control so that sensitivity of the closed-loop control increases as the oil temperature decreases.
-
-
-
搜索结果
4 条记录 (耗时 0.014 秒)
