公开(公告)号：US09803665B2

公开(公告)日：2017-10-31

申请号：US14660192

申请日：2015-03-17

申请人： Caterpillar Inc.

发明人： Matthew J. Beschorner ,  Eric Hughes ,  Naoto Funabiki ,  Tomohiro Oyama ,  Brett J. Janson

IPC分类号： F15B21/04 ,  F15B19/00 ,  E02F9/22

CPC分类号： F15B21/042 ,  E02F9/2235 ,  E02F9/226 ,  E02F9/2292 ,  E02F9/2296 ,  F15B19/00 ,  F15B2211/41563 ,  F15B2211/62 ,  F15B2211/6313 ,  F15B2211/6343 ,  F15B2211/66 ,  F15B2211/6652

摘要： A control system for a machine is disclosed. The control system may have a bypass passage situated to allow fluid to bypass an actuator, and a warmup valve disposed within the bypass passage that is movable between flow-passing and-blocking positions. A controller is configured to move the warmup valve to the flow-passing position, fix a displacement position of the pump, compare the pressure of the fluid of the actuator with a threshold, and move the warmup valve to the flow-blocking position and reduce a pump outlet pressure when the pressure of the fluid is greater than the threshold. The controller may be configured to move the warmup valve to the flow-passing position, fix a displacement position of the pump, and adjust an input speed of the pump in response to the signal.

公开(公告)号：US20150308469A1

公开(公告)日：2015-10-29

申请号：US14660192

申请日：2015-03-17

申请人： Caterpillar Inc.

发明人： Matthew J. Beschorner ,  Eric Hughes ,  Naoto Funabiki ,  Tomohiro Oyama ,  Brett J. Janson

IPC分类号： F15B21/04 ,  F15B19/00

CPC分类号： F15B21/042 ,  E02F9/2235 ,  E02F9/226 ,  E02F9/2292 ,  E02F9/2296 ,  F15B19/00 ,  F15B2211/41563 ,  F15B2211/62 ,  F15B2211/6313 ,  F15B2211/6343 ,  F15B2211/66 ,  F15B2211/6652

摘要： A control system for a machine is disclosed. The control system may have a bypass passage situated to allow fluid to bypass an actuator, and a warmup valve disposed within the bypass passage that is movable between flow-passing and-blocking positions. A controller is configured to move the warmup valve to the flow-passing position, fix a displacement position of the pump, compare the pressure of the fluid of the actuator with a threshold, and move the warmup valve to the flow-blocking position and reduce a pump outlet pressure when the pressure of the fluid is greater than the threshold. The controller may be configured to move the warmup valve to the flow-passing position, fix a displacement position of the pump, and adjust an input speed of the pump in response to the signal.

摘要翻译： 公开了一种用于机器的控制系统。 控制系统可以具有旁路通道，其设置成允许流体绕过致动器，以及设置在旁通通道内的预热阀，其可在流动和阻塞位置之间移动。 控制器被配置为将暖机阀移动到流通位置，固定泵的位移位置，将致动器的流体的压力与阈值进行比较，并将加热阀移动到阻流位置并减小 当流体的压力大于阈值时的泵出口压力。 控制器可以被配置为将暖机阀移动到流通位置，固定泵的位移位置，并响应于该信号来调节泵的输入速度。