公开(公告)号：US20070237648A1

公开(公告)日：2007-10-11

申请号：US11784453

申请日：2007-04-06

Applicant: Shigeki Ooya

Inventor： Shigeki Ooya

IPC: F04B49/00

CPC classification number: F04B51/00 ,  B60H1/3216 ,  B60H2001/3238 ,  B60H2001/325 ,  F04B2201/1202 ,  F04B2205/01 ,  F04B2205/05

Abstract: A compressor driving torque estimating apparatus estimates driving torque of a compressor. The apparatus includes a discharge-side detecting device, an inlet-side detecting device, first and second calculating devices, and an estimated driving torque determining device. The discharge-side detecting device detects discharge-side quantity about fluid discharged from the compressor. The inlet-side detecting device detects inlet-side quantity about fluid drawn into the compressor. The first calculating device calculates first estimated driving torque based on the discharge- and inlet-side quantity. The second calculating device calculates second estimated driving torque based on the discharge-side quantity. The estimated driving torque determining device chooses a smaller value between the first and second estimated driving torque as the driving torque. A compressor driving source control apparatus includes the apparatus. The control apparatus controls an output of a driving source, which provides driving force for the compressor, based on the driving torque.

Abstract translation: 压缩机驱动转矩估计装置估计压缩机的驱动转矩。 该装置包括排出侧检测装置，入口侧检测装置，第一和第二计算装置以及估计的驱动转矩确定装置。 排出侧检测装置检测从压缩机排出的流体的排出量。 入口侧检测装置检测吸入压缩机的流体的入口侧的量。 第一计算装置基于排出口和入口侧的量来计算第一估计的驱动转矩。 第二计算装置基于排出侧量计算第二估计驱动转矩。 估计的驱动转矩确定装置在第一和第二估计驱动转矩之间选择较小的值作为驱动转矩。 压缩机驱动源控制装置包括该装置。 控制装置基于驱动转矩来控制提供压缩机的驱动力的驱动源的输出。

公开(公告)号：US20060275145A1

公开(公告)日：2006-12-07

申请号：US11440459

申请日：2006-05-25

Applicant: Eiji Takahashi ,  Masaki Kawachi ,  Masanori Ogawa ,  Morio Sekizuka

Inventor： Eiji Takahashi ,  Masaki Kawachi ,  Masanori Ogawa ,  Morio Sekizuka

IPC: F04B1/26

CPC classification number: F04B27/1804 ,  B60H1/3216 ,  B60H1/3219 ,  B60H2001/3238 ,  B60H2001/3263 ,  B60H2001/327 ,  B60H2001/3275 ,  F04B49/065 ,  F04B2027/1827 ,  F04B2027/1854 ,  F04B2027/1859 ,  F04B2201/1202

Abstract: An apparatus for calculating torque of a variable capacity compressor is provided. The compressor includes a suction chamber, a discharge chamber, a piston to draw coolant from the suction chamber, compress the drawn coolant, and discharge the compressed coolant into the discharge chamber, a clutch to be turned on to transmit driving force from a driving source to the piston so that the piston operates and to be turned off to disconnect the driving force of the driving source from the piston so that the piston stops, and a pressure adjuster to adjust a back pressure introduced from the discharge chamber to the back of the piston and thereby adjust a piston stroke. The apparatus comprises a counter configured to count an OFF time when the clutch is tuned off from an ON state until the clutch is next turned on, a determiner configured to determine whether or not the OFF time is less than a predetermined time, and a start torque calculator configured to calculate a start torque of the compressor depending on the determination of the determiner.

Abstract translation: 提供了一种用于计算可变容量压缩机的转矩的装置。 压缩机包括吸入室，排出室，从抽吸室抽取冷却剂的活塞，压缩抽取的冷却剂，并将压缩的冷却剂排出到排放室中，将要接通的离合器传递来自驱动源的驱动力 以使得活塞运转并且被关闭以将驱动源的驱动力与活塞断开以使活塞停止;以及压力调节器，用于调节从排出室引入的后压力 从而调节活塞行程。 所述装置包括：计数器，被配置为当所述离合器从接通状态调谐到所述离合器下一次接通时计数OFF时间;确定器，被配置为确定所述OFF时间是否小于预定时间;以及开始 扭矩计算器被配置为根据确定器的确定来计算压缩机的起动转矩。

公开(公告)号：US20060088423A1

公开(公告)日：2006-04-27

申请号：US10974437

申请日：2004-10-27

Applicant: John Brunet ,  David Stribling ,  Todd Dean ,  James Roach ,  Stephen Crain

Inventor： John Brunet ,  David Stribling ,  Todd Dean ,  James Roach ,  Stephen Crain

IPC: F04B49/00

CPC classification number: F04B49/065 ,  F04B2201/1201 ,  F04B2201/1202 ,  F04B2201/1203 ,  F04B2203/0209 ,  F04B2205/05 ,  F04B2205/09

Abstract: A pumping system comprising a motor, wherein the motor has an operating speed, a pump coupled to the motor, wherein the pump has a volumetric displacement, a fluid end coupled to the pump, wherein the fluid end is operable to draw fluid from an input and provide fluid to an output, and a control system operable to regulate the motor and the pump in order to provide fluid to the output at a selected pressure and flow rate within a continuous range of pressures and flow rates between the peak horsepower output and peak torque output of the motor.

公开(公告)号：US06991435B2

公开(公告)日：2006-01-31

申请号：US10441236

申请日：2003-05-20

Applicant: Yoshihiro Ochiai

Inventor： Yoshihiro Ochiai

IPC: F04B49/00

CPC classification number: F04B27/1804 ,  F04B49/065 ,  F04B2201/0201 ,  F04B2201/1202 ,  F04B2201/1204

Abstract: A variable displacement compressor includes a plate having a variable inclination angle, and a piston engaging the plate. The piston reciprocates within a bore of the compressor in accordance with a rotation of the plate, and the piston has a stroke length which is determined by the inclination angle of the plate. The compressor also includes a sensor positioned adjacent to the piston. The sensor generates an output signal when a predetermined portion of the piston is aligned with the sensor. The compressor also includes a processing unit operationally coupled to the sensor. The processing unit estimates the inclination angle of the plate based on the output signal from the sensor.

Abstract translation: 可变排量压缩机包括具有可变倾斜角的板和与板接合的活塞。 活塞根据板的旋转而在压缩机的孔内往复运动，并且活塞具有由板的倾斜角确定的冲程长度。 压缩机还包括邻近活塞定位的传感器。 当活塞的预定部分与传感器对准时，传感器产生输出信号。 压缩机还包括可操作地耦合到传感器的处理单元。 处理单元基于来自传感器的输出信号估计板的倾斜角度。

公开(公告)号：US20050036894A1

公开(公告)日：2005-02-17

申请号：US10631006

申请日：2003-07-31

Applicant: Hideo Oguri

Inventor： Hideo Oguri

IPC: E02F9/22 ,  E02F9/20 ,  F02D29/00 ,  F02D29/04 ,  F04B17/00 ,  F04B17/05 ,  F04B49/00 ,  F15B21/14

CPC classification number: E02F9/2246 ,  E02F9/2075 ,  E02F9/2217 ,  E02F9/2235 ,  F04B17/00 ,  F04B17/05 ,  F04B49/00 ,  F04B2201/1202 ,  F04B2203/0603

Abstract: In order to provide a construction machine by which energy regeneration can be performed reliably and battery and electrical power generator can be miniaturized, a construction machine has an engine, a hydraulic pump driven by the engine, and an actuator driven by discharge oil from the hydraulic pump, and a regenerative motor which rotates by return oil from the actuator is connected to the rotation shaft of the hydraulic pump. The hydraulic pump is driven by the engine and the regenerative motor when drive torque necessary in the hydraulic pump is larger than output torque generated by operation of the regenerative motor. Meanwhile, the hydraulic pump is driven by the regenerative motor when the drive torque of the hydraulic pump is smaller than output torque of the regenerative motor, and an electrical power generator connected to the rotation shaft of the hydraulic pump is operated to generate electricity by excess torque which has not been energy-regenerated in the hydraulic pump so that this generated electrical power is charged in a battery.

Abstract translation: 为了提供能够可靠地进行能量再生的建筑机械，电池和发电机可以小型化，建筑机械具有发动机，由发动机驱动的液压泵，以及由液压驱动的排出油驱动的致动器 泵和来自致动器的返回油旋转的再生电动机连接到液压泵的旋转轴。 当液压泵所需的驱动扭矩大于由再生电动机的运转产生的输出转矩时，液压泵由发动机和再生电动机驱动。 同时，当液压泵的驱动扭矩小于再生电机的输出转矩时，液压泵由再生电动机驱动，并且连接到液压泵的旋转轴的发电机被运行以产生过量的电力 在液压泵中没有能量再生的扭矩，使得该发电电力被充电到电池中。

公开(公告)号：US06708787B2

公开(公告)日：2004-03-23

申请号：US10080678

申请日：2002-02-25

Applicant: Masami Naruse ,  Masatake Tamaru ,  Kenzo Kimoto

Inventor： Masami Naruse ,  Masatake Tamaru ,  Kenzo Kimoto

IPC: E02F920

CPC classification number: B60W10/08 ,  B60K6/12 ,  B60K6/485 ,  B60K6/543 ,  B60W10/06 ,  B60W10/30 ,  B60W2510/0657 ,  B60W2710/083 ,  E02F9/2075 ,  E02F9/2217 ,  F04B17/03 ,  F04B17/05 ,  F04B2201/1202 ,  Y02T10/6208 ,  Y02T10/6226 ,  Y02T10/6286 ,  Y10S903/903 ,  Y10S903/918

Abstract: Hybrid construction equipment leveling an engine load and effectively performing regeneration of energy is provided. For this purpose, the construction equipment includes a hydraulic pump (2) and a first electric motor (7) driven by an engine (1), a battery (9) for charging electric power generated by the first electric motor, a second electric motor (10) driven by electric power of the battery and functioning as a generator at a time of braking revolution, a swash plate angel sensor 33 and a pressure sensor 34 for the hydraulic pump, and a controller (5) for controlling the first electric motor as a generator by surplus torque when absorption torque is smaller than predetermined output torque of the engine and controlling the first electric motor as a motor to generate an amount of shortage of torque when the absorption torque is larger than the predetermined torque.

Abstract translation: 提供混合式施工设备调平发动机负荷并有效地执行能量再生。 为此，施工设备包括液压泵（2）和由发动机（1）驱动的第一电动机（7），用于对由第一电动机产生的电力进行充电的电池（9），第二电动机 （10），在制动转动时作为发电机驱动，用于液压泵的斜盘角传感器33和压力传感器34，以及用于控制第一电动机的控制器（5） 当吸收扭矩小于发动机的预定输出转矩并作为电动机控制第一电动机以在吸收转矩大于预定转矩时产生转矩不足量，作为发电机作为发电机。

公开(公告)号：US06296455B1

公开(公告)日：2001-10-02

申请号：US09245284

申请日：1999-02-05

Applicant: Robert D. Backer ,  David Alan Hall ,  Robert William Johnston

Inventor： Robert D. Backer ,  David Alan Hall ,  Robert William Johnston

IPC: F04B4900

CPC classification number: F04B49/06 ,  F04B49/03 ,  F04B49/08 ,  F04B49/12 ,  F04B2201/0206 ,  F04B2201/1202 ,  F04B2201/1203 ,  F04B2205/09 ,  F04B2207/703

Abstract: A pump enable system includes a variable-displacement piston pump having a displacement control device. The displacement control device controls displacement of pistons in the pump based on a position thereof, and a position control system in the pump controls a position of the displacement control device based on a load on the pump. An over-ride system selectively over-rides the position control system such that the displacement control device assumes a position which reduces displacement of the pistons in the pump.

Abstract translation: 泵启动系统包括具有位移控制装置的可变排量活塞泵。 位移控制装置基于其位置来控制泵中的活塞的位移，并且泵中的位置控制系统基于泵上的负载来控制排量控制装置的位置。 超越系统选择性地超越位置控制系统，使得位移控制装置采取减少泵中活塞的位移的位置。

公开(公告)号：US06293765B1

公开(公告)日：2001-09-25

申请号：US09566676

申请日：2000-05-08

Applicant: Mark A. Peterson

Inventor： Mark A. Peterson

IPC: F04B2304

CPC classification number: F04C14/02 ,  E02F9/2239 ,  E02F9/226 ,  E02F9/2292 ,  F04B23/04 ,  F04B2201/1202 ,  F04C11/001 ,  F04C2270/03 ,  F15B11/17 ,  F15B2211/20538 ,  F15B2211/20584 ,  F15B2211/25 ,  F15B2211/50518 ,  F15B2211/50536 ,  F15B2211/55 ,  F15B2211/57 ,  F15B2211/7142 ,  F15B2211/781

Abstract: A tandem fixed displacement pump circuit with torque control includes first and second pumps that draw fluid from a reservoir to supply respective load circuits, pressure relief valves for each of the load circuits, and a pilot operated sequence valve that monitors the pressure for each of the circuits and reduces the pressure of one of the circuits as the pressure in the other circuit rises. The sequence valve modulates to control the pressure in the secondary priority circuit so that a predetermined input torque value is not exceeded.

Abstract translation: 具有扭矩控制的串联固定排量泵回路包括第一和第二泵，其从储存器抽取流体以提供相应的负载回路，用于每个负载回路的压力释放阀，以及先导操作的顺序阀，其监测每个 电路并降低其中一个电路的压力，因为另一个电路中的压力上升。 调节顺序阀以控制二次优先电路中的压力，使得不超过预定的输入转矩值。

公开(公告)号：US20240254976A1

公开(公告)日：2024-08-01

申请号：US18159935

申请日：2023-01-26

Applicant: Dana Motion Systems Italia S.R.L.

Inventor： Luca RICCO ,  Francesco CANESTRI ,  Andrea LUCCHI

IPC: F04B1/24 ,  F04B1/324

CPC classification number: F04B1/24 ,  F04B1/324 ,  F04B2201/1202 ,  F04B2201/1206

Abstract: Methods and systems for a variable displacement bent axis piston motor are described. In one example, a variable displacement bent axis piston motor comprises a bent axis unit (BAU) rotary group including a cylinder block coupled to a drive shaft of the bent axis piston motor, and an electric actuator coupled to a servo piston of the bent axis piston motor, wherein a displacement of the BAU rotary group is controlled by an inclination angle between the drive shaft and a valve plate of the BAU rotary group coupled to the cylinder block, the inclination angle controlled by the servo piston, the servo piston controlled by the electric actuator. The servo piston is controlled by the electric actuator based a feedback control system, which may switch between various control strategies for adjusting the inclination angle based on different driving scenarios.

公开(公告)号：US11873808B2

公开(公告)日：2024-01-16

申请号：US17432309

申请日：2020-01-28

Applicant: RENAULT s.a.s.

Inventor： Mathieu Leleu

IPC: F04B49/02 ,  F04B17/03 ,  F04B49/20 ,  F16H57/04

CPC classification number: F04B49/02 ,  F04B17/03 ,  F04B49/20 ,  F16H57/0447 ,  F04B2201/1201 ,  F04B2201/1202 ,  F04B2203/0201 ,  F04B2203/0209 ,  F04B2205/09

Abstract: A method controls the start-up of an oil pump of a gearbox by a brushless electric motor that has no position sensor. The stator coils are powered from the off mode in a constant-current open-loop control sequence until the pump reaches a speed threshold at which speed regulation switches over to closed-loop control on a setpoint corresponding to the lubrication flow rate required to ensure the reliability of the gearbox, but without in so doing exceeding a current threshold indicative of pump seizure, at which point motor control switches back over to the constant-current open-loop control sequence. The open-loop current setpoint is higher than the threshold for switching over to closed-loop control so that in the open-loop control mode the motor torque available at the pump is higher than in the closed-loop control mode.