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1. 发明授权

US06343250B1 Method and apparatus for smoothing the output of a hydrostatic transmission near zero speed 失效
标题翻译：用于使靠近零速度的静液压传动装置的输出平滑的方法和装置
公开(公告)号：US06343250B1
公开(公告)日：2002-01-29
申请号：US09575476
申请日：2000-05-19
申请人： Brian D. Kuras , Charles E. Rose
发明人： Brian D. Kuras , Charles E. Rose
IPC分类号： F16H3946
CPC分类号： F16H47/04 , F16H59/38 , F16H61/439 , F16H61/47 , F16H2037/0886
摘要： A transmission assembly includes a variable displacement hydraulic pump, a hydraulic motor operatively connected to the pump, a speed sensor operable to sense the speed of an output shaft of the motor, a first actuator for setting displacement of the pump in a positive displacement range in response to a first actuator command and a second actuator for setting displacement of the pump in a negative displacement range in response to a second actuator command. A controller is operable to transmit first actuator commands to the first actuator and transmit second actuator commands to the second actuator in response to operator inputs. The operator inputs require that the displacement of the pump to move from the positive displacement range to the negative displacement range. The controller generates first actuator commands which cause the first actuator to set the displacement to zero. The controller generates second actuator commands in response to the speed of the output shaft reaching a predetermined motor speed limit which cause the second actuator to set the displacement of the pump in the negative displacement region.
摘要翻译：传动组件包括可变排量液压泵，可操作地连接到泵的液压马达，可操作以感测马达的输出轴的速度的速度传感器，用于将泵的位移设置在正位移范围内的第一致动器响应于第一致动器命令和第二致动器，用于响应于第二致动器命令将泵的位移设置在负位移范围内。控制器可操作地将第一致动器命令传送到第一致动器，并响应于操作者输入将第二致动器命令传送到第二致动器。操作员输入要求泵的位移从正位移范围移动到负位移范围。控制器产生第一致动器命令，其使第一致动器将位移设置为零。控制器响应于输出轴的速度达到预定的电动机速度限制而产生第二致动器命令，这使得第二致动器将泵的位移设定在负位移区域中。

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