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公开(公告)号：US09534616B2
公开(公告)日：2017-01-03
申请号：US14599220
申请日：2015-01-16
Applicant: Caterpillar Inc.
Inventor： Santosh Ancha , Aleksandar Egelja , Hongliu Du , Takayuki Sasaki
CPC classification number: F15B19/005 , E02F9/2235 , E02F9/2278 , E02F9/2292 , E02F9/2296 , F15B19/007 , F15B2211/20523 , F15B2211/20546 , F15B2211/20576 , F15B2211/6309 , F15B2211/633 , F15B2211/6333 , F15B2211/6652 , F15B2211/855 , F15B2211/862 , F15B2211/87 , F15B2211/8752
Abstract: A system for determining an estimated output from a variable displacement hydraulic pump includes a prime mover, a torque sensor, a pressure sensor, and a displacement sensor. A controller is configured to determine the output torque from the prime mover, determine an input torque to the variable displacement hydraulic pump based upon the output torque, determine an output from one of the pressure sensor and the displacement sensor based upon the signals. The controller is further configured to determine a failure of another of the pressure sensor and the displacement sensor and determine an estimated output from the another of the pressure sensor and the displacement sensor based upon the input torque to the variable displacement hydraulic pump and the output from the one of the pressure sensor and the displacement sensor.
Abstract translation: 用于确定来自可变排量液压泵的估计输出的系统包括原动机，扭矩传感器，压力传感器和位移传感器。 控制器被配置为确定来自原动机的输出扭矩，基于输出扭矩确定到可变排量液压泵的输入扭矩，基于该信号确定压力传感器和位移传感器之一的输出。 所述控制器还被配置成确定所述压力传感器和所述位移传感器中的另一个的故障，并基于所述可变排量液压泵的输入扭矩确定来自所述压力传感器和所述位移传感器中的另一个的估计输出， 压力传感器和位移传感器之一。
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公开(公告)号：US09404516B1
公开(公告)日：2016-08-02
申请号：US14599238
申请日：2015-01-16
Applicant: Caterpillar Inc.
Inventor： Hongliu Du , Aleksandar Egelja , Santosh Ancha
CPC classification number: F15B19/005 , E02F9/2235 , E02F9/2292 , E02F9/2296 , E02F9/268 , F15B15/20 , F15B19/007 , F15B2211/20546 , F15B2211/20576 , F15B2211/6309 , F15B2211/633 , F15B2211/6333 , F15B2211/665 , F15B2211/87 , F15B2211/875 , G01M15/05 , G01N2030/326
Abstract: A system for determining an estimated output from a variable displacement hydraulic pump includes a prime mover, and torque, pressure, and displacement sensors. A controller determines the output torque from the prime mover, determines an input torque to the variable displacement hydraulic pump based upon the output torque, determines an output from one of the pressure sensor and the displacement sensor, and determines an inertia torque loss based upon the angular acceleration of the prime mover. The controller further determines a failure of another of the pressure sensor and the displacement sensor and determines an estimated output from the another of the pressure sensor and the displacement sensor based upon the input torque to the variable displacement hydraulic pump, the output from the one of the pressure sensor and the displacement sensor, and the inertia torque loss.
Abstract translation: 用于确定来自可变排量液压泵的估计输出的系统包括原动机和扭矩，压力和位移传感器。 控制器确定来自原动机的输出扭矩，基于输出转矩确定到可变排量液压泵的输入扭矩，确定来自压力传感器和位移传感器中的一个的输出，并且基于 原动机的角加速度。 控制器进一步确定另一个压力传感器和位移传感器的故障，并且基于来自可变排量液压泵的输入扭矩确定压力传感器和位移传感器中的另一个的估计输出， 压力传感器和位移传感器，以及惯性转矩损失。
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3.发明申请公开(公告)号：US20160138619A1
公开(公告)日：2016-05-19
申请号：US14541586
申请日：2014-11-14
Applicant: Caterpillar Inc.
Inventor： Jiao Zhang , Tonglin Shang , Santosh Ancha , Pengfei Ma
IPC: F15B11/028 , F15B13/042 , F15B11/10
CPC classification number: F15B11/17 , E02F9/2217 , E02F9/2228 , E02F9/2235 , E02F9/2239 , E02F9/2292 , E02F9/2296 , F15B2211/20576 , F15B2211/30 , F15B2211/6652 , F15B2211/6655 , F15B2211/6658 , F15B2211/71
Abstract: A hydraulic system includes a first pump to provided pressurized fluid to a first hydraulic circuit and a second pump to provide pressurized fluid to a second hydraulic circuit. When the hydraulic system is in an energy conservation mode, the output power of the first pump is reduced to less than the hydraulic power demand of the first hydraulic circuit.
Abstract translation: 液压系统包括将加压流体提供给第一液压回路的第一泵和用于向第二液压回路提供加压流体的第二泵。 当液压系统处于节能模式时，第一泵的输出功率降低到小于第一液压回路的液压动力需求。
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