公开(公告)号：US20190170247A1

公开(公告)日：2019-06-06

申请号：US15833089

申请日：2017-12-06

Applicant: CNH Industrial America LLC ,  Danfoss Power Solutions Inc.

Inventor： David J. Hafvenstein ,  Simon L. Nielsen

IPC: F16H61/42 ,  F16H39/02 ,  F16H61/47

CPC classification number: F16H61/42 ,  A01C23/00 ,  A01M21/04 ,  B60Y2300/184 ,  F16H39/02 ,  F16H59/72 ,  F16H61/4192 ,  F16H61/47 ,  F16H2061/1216 ,  F16H2061/124

Abstract: A system, apparatus and method are provided for limiting operating speed at high temperatures of a self-propelled, agricultural product applicator having a hydraulic drive system including a pump supplying pressurized hydraulic fluid to a variable-displacement hydraulic motor operatively connected for propelling the applicator. A temperature sensor detects a temperature of the pressurized hydraulic fluid in the hydraulic system. A propel controller is operatively connected between the temperature sensor and the propulsion motor and configured for limiting displacement of the propulsion motor according to one or more predetermined de-rated conditions resulting in reduced motor speed, in accordance with a predetermined schedule, when predetermined motor de-rating activation temperature limits of the hydraulic fluid are detected by the temperature sensor. The controller is further configured for providing a de-rated condition warning signal prior to limiting displacement of the propulsion motor.

公开(公告)号：US09863532B2

公开(公告)日：2018-01-09

申请号：US14192927

申请日：2014-02-28

Applicant: Linde Hydraulics GmbH & Co. KG

Inventor： Rolf Lasaar ,  Markus Jung

IPC: F16H61/46 ,  F16H61/4192 ,  F16H61/431 ,  F16H61/439 ,  F04B49/00

CPC classification number: F16H61/46 ,  F04B49/002 ,  F15B2211/20553 ,  F15B2211/8752 ,  F16H61/4192 ,  F16H61/431 ,  F16H61/439

Abstract: A hydrostatic variable displacement pump (2) has a displacement volume set by an electro-hydraulic control device (10) provided with a safety function. In a fault scenario, the variable displacement pump (2) is set to a neutral position. The electro-hydraulic control device (10) has a single electro-hydraulic setpoint encoder (30) to specify the setpoint of the displacement volume of the variable displacement pump (2) and an electrically actuatable valve device (35) connected in series downstream of the setpoint encoder (30), by which the direction of displacement of the variable displacement pump (2) is controlled and which is provided with the safety function.

公开(公告)号：US09366598B2

公开(公告)日：2016-06-14

申请号：US14358791

申请日：2012-11-13

Applicant: CNH Industrial America LLC

Inventor： Francesco Mancarella ,  Gabriele Morandi

IPC: G01M13/02 ,  F16H61/4192 ,  F16H59/68 ,  F16H59/16 ,  B60W50/04

CPC classification number: G01M13/02 ,  B60W2050/043 ,  F16H59/16 ,  F16H61/4192 ,  F16H2059/6869 ,  F16H2059/6876 ,  F16H2059/6884

Abstract: A method for testing a transmission of a vehicle, the transmission including a hydrostatic unit installed on the vehicle. The method includes calculating an actual value of a parameter which is indicative of the volumetric efficiency of the hydrostatic unit, in a working condition. The method also includes determining an expected value of the parameter in the working condition. The actual value is comparable with the expected value in order to evaluate how the hydrostatic unit is working.

Abstract translation: 一种用于测试车辆变速器的方法，所述变速器包括安装在车辆上的静液压单元。 该方法包括在工作状态下计算指示静液压单元的体积效率的参数的实际值。 该方法还包括在工作状态下确定参数的期望值。 实际值与预期值相当，以评估静液压单元如何工作。

公开(公告)号：US07920949B2

公开(公告)日：2011-04-05

申请号：US11752136

申请日：2007-05-22

Applicant: Brian D Kuras ,  Frank A DeMarco ,  Adam J Vaccari ,  Tyler Bowan

Inventor： Brian D Kuras ,  Frank A DeMarco ,  Adam J Vaccari ,  Tyler Bowan

IPC: F16H9/00

CPC classification number: F16H61/4192 ,  F16H61/472 ,  F16H2059/6892 ,  Y10T477/619 ,  Y10T477/6197 ,  Y10T477/623 ,  Y10T477/6237 ,  Y10T477/624 ,  Y10T477/6242

Abstract: A variator torque control system and method utilize a hydraulic actuator to control the variator output via a torque control map, wherein the values of the torque control map are evaluated and modified during use of the map to improve map accuracy. In an example, errors in the map are evaluated to determine whether a system fault has occurred.

Abstract translation: 变矩器扭矩控制系统和方法利用液压致动器经由扭矩控制图控制变换器输出，其中在使用地图期间对转矩控制图的值进行评估和修改以提高地图精度。 在一个示例中，评估映射中的错误以确定是否发生系统故障。

公开(公告)号：US07180720B2

公开(公告)日：2007-02-20

申请号：US10466451

申请日：2001-01-19

Applicant: Kazuhiro Ichimura

Inventor： Kazuhiro Ichimura

IPC: F16D31/02

CPC classification number: F15B19/005 ,  F16H47/02 ,  F16H57/0449 ,  F16H61/12 ,  F16H61/40 ,  F16H61/4148 ,  F16H61/4192 ,  F16H61/42 ,  F16H2059/446

Abstract: A failure detection device for a hydraulic motor according to the present invention comprises a hydraulic pump 3 that is driven by a prime mover 2; a hydraulic motor 1 for traveling that is driven by hydraulic oil discharged from the hydraulic pump 3; a transmission 7 that is connected with an output shaft of the hydraulic motor 1 for traveling; a stopping detection device 26 that detects that a traveling vehicle has stopped; a fluid level detection device 35 that detects an oil level in the transmission 7; and a warning device 39, 40 that issues a warning when the stopping detection device 26 detects that the traveling vehicle has stopped, and also the fluid level detection device 35 detects that the oil level in the transmission 7 has reached a predetermined value La.

Abstract translation: 根据本发明的用于液压马达的故障检测装置包括由原动机2驱动的液压泵3; 由从液压泵3排出的液压油驱动的行驶用液压马达1; 与用于行驶的液压马达1的输出轴连接的变速器7; 检测行驶车辆停止的停止检测装置26; 液位检测装置35，其检测变速器7中的油位; 以及当停止检测装置26检测到行驶车辆停止时发出警告的警告装置39,40，并且液面检测装置35也检测到变速器7中的油位已经达到规定值La。

公开(公告)号：US6164402A

公开(公告)日：2000-12-26

申请号：US195496

申请日：1998-11-18

Applicant: James J. Hastreiter

Inventor： James J. Hastreiter

IPC: B60W10/04 ,  B60K17/10 ,  B60W10/08 ,  B60W10/10 ,  B60W10/12 ,  E02F9/20 ,  E02F9/22 ,  F02D29/04 ,  F15B21/08 ,  F16H39/02 ,  F16H59/26 ,  F16H61/40 ,  F16H61/4035 ,  F16H61/4192 ,  F16H61/42 ,  B60K17/356

CPC classification number: F16H61/4192 ,  B60K17/10 ,  E02F9/2253 ,  E02F9/226 ,  F15B21/08 ,  F16H39/02 ,  F16H61/4035 ,  F16H61/431 ,  F16H2059/6861 ,  F16H2061/0078

Abstract: A vehicle propel system, including a hydrostatic transmission having wheel motors (37L,37R) and a variable displacement pump (39), variable in response to a pump displacement command signal (51). The system involves determining (67) anticipated motor flow, and generating a signal (69) corresponding thereto. A pressure command signal (77) corresponds to the desired pump pressure. Actual motor flow is sensed (75), and a processor (49) calculates pump flow and compares it to actual motor flow (75) to determine system leakage (107). The processor then modifies the anticipated motor flow signal (69) to compensate for system leakage (107), and generates the appropriate pump displacement command signal (51). The use of feed-forward terms, such as anticipated motor flow (69), pump speed and commanded pressure times leakage gain to calculate desired pump displacement allow a lesser gain to be used for the feedback term (measured pump pressure 59), thereby reducing "wheel hop".

公开(公告)号：US5842144A

公开(公告)日：1998-11-24

申请号：US939266

申请日：1997-09-29

Applicant: Alan R. Coutant ,  Michael G. Cronin ,  Kenneth P. Liesener ,  Jerry D. Marr ,  Sanjay Rajagopalan

Inventor： Alan R. Coutant ,  Michael G. Cronin ,  Kenneth P. Liesener ,  Jerry D. Marr ,  Sanjay Rajagopalan

IPC: F16H47/04 ,  F16H61/12 ,  F16H61/40 ,  F16H61/4192 ,  F16H61/42 ,  F16H61/421 ,  F16H61/431 ,  F16H61/46 ,  B60K41/00

CPC classification number: F16H61/421 ,  F16H47/04 ,  F16H61/12 ,  F16H61/4192 ,  F16H61/431 ,  F16H61/46 ,  F16H2037/0886 ,  F16H2061/1208 ,  F16H2061/122 ,  F16H2061/1224 ,  F16H2061/1232 ,  F16H2061/1268 ,  F16H2061/1276 ,  F16H2061/1284 ,  F16H61/686 ,  Y10T477/6217

Abstract: A default mode control system for controlling a split torque transmission is disclosed. The default mode control system monitors various inputs to the control to detect an on board electrical, electronic fault or mechanical, hydraulic fault. When a fault is detected, the default mode control will recover from the default and then will limit operation of the split torque transmission based on the fault input.

Abstract translation: 公开了一种用于控制分离转矩传递的默认模式控制系统。 默认模式控制系统监控控制器的各种输入，以检测机载电气故障或机械液压故障。 当检测到故障时，默认模式控制将从默认状态恢复，然后根据故障输入限制分离转矩传输的运行。

公开(公告)号：US5214983A

公开(公告)日：1993-06-01

申请号：US823311

申请日：1992-01-21

Applicant: Akio Kobayashi ,  Hiroshi Tanaka ,  Shoji Yamashita ,  Yasumasa Fujita ,  Koichi Hikichi ,  Chiaki Kumagai

Inventor： Akio Kobayashi ,  Hiroshi Tanaka ,  Shoji Yamashita ,  Yasumasa Fujita ,  Koichi Hikichi ,  Chiaki Kumagai

IPC: B60W10/06 ,  B60W30/18 ,  F16H59/18 ,  F16H59/62 ,  F16H59/66 ,  F16H59/70 ,  F16H61/40 ,  F16H61/4035 ,  F16H61/4192 ,  F16H61/421 ,  F16H61/46 ,  F16H61/462 ,  F16H61/66

CPC classification number: B60W10/06 ,  B60W10/101 ,  B60W30/18 ,  B60W30/1884 ,  B60W50/082 ,  F16H61/4035 ,  F16H61/4192 ,  F16H61/46 ,  F16H61/462 ,  F16H61/66 ,  B60W2510/0604 ,  B60W2510/0638 ,  B60W2550/12 ,  B60W2710/0605 ,  B60W2710/1005 ,  F16H2061/166 ,  F16H59/18 ,  F16H59/62 ,  F16H59/66 ,  F16H59/70 ,  F16H61/4052 ,  F16H61/421 ,  Y10T477/619 ,  Y10T477/6237

Abstract: A controlling device for controlling the transmission ratio of a non-stage transmission in a vehicle. The transmission ratio is controlled according to a forecast output power of the vehicle. The output power is forecast based on an operating condition of the vehicle, such as atmospheric pressure. The control considers various operating parameters. A comparison of a predetermined increases of engine speed or throttle opening with actual ratios of increase of engine speed or throttle opening may be made in controlling the transmission ratio. An uneven road surface is detected and a transmission ratio of the transmission is controlled accordingly to substantially eliminate hunting. An engine speed is controlled so that the engine speed may not exceed a predetermined rotational speed when the transmission gear ratio is fixed. A target engine speed or target transmission ratio is corrected in response to an output signal of a comparison device which compares an actual vehicle velocity with a set vehicle velocity during automatic fixed vehicle velocity running.

Abstract translation: 一种用于控制车辆中非级变速器的传动比的控制装置。 根据车辆的预测输出功率来控制传动比。 基于车辆的运行状况（例如大气压力）来预测输出功率。 控制器考虑各种操作参数。 可以在控制传动比时进行发动机转速或节气门开度的预定增加与发动机转速或节气门开度增加的实际比率的比较。 检测到不均匀的路面，相应地控制变速器的传动比，从而基本上消除了狩猎。 控制发动机转速，使得当变速比固定时，发动机转速可能不超过预定转速。 响应于比较装置的输出信号来校正目标发动机转速或目标变速比，该比较装置将实际车速与自动固定车速运行期间的设定车速进行比较。

公开(公告)号：US11821511B2

公开(公告)日：2023-11-21

申请号：US17052008

申请日：2019-04-15

Applicant: Robert Bosch GmbH

Inventor： Matthias Mueller ,  Heinz Hense ,  Juergen Feig ,  Peer Mumcu ,  Ronny Herrmann ,  Veronica Arenas

IPC: F16H61/4192 ,  F16H61/431 ,  G01P3/44 ,  G01L19/00 ,  F16H59/68

CPC classification number: F16H61/4192 ,  F16H61/431 ,  G01L19/0038 ,  G01P3/44 ,  F16H2059/6861 ,  F16H2059/6876

Abstract: A monitoring system for a travel drive includes a rotational speed sensor of a hydrostatic motor. The rotational speed sensor is configured to determine acceleration. At least one signal from a pressure sensor mounted on at least one working line that connects a pump to the hydrostatic motor of a hydrostatic travel drive is evaluated. The pressure sensor is preferably arranged on at least one working connection of the pump. The system uses the additional pressure signal to evaluate in a reliable manner whether the hydrostatic travel drive generates an unwanted drive torque.

公开(公告)号：US08813482B2

公开(公告)日：2014-08-26

申请号：US13021268

申请日：2011-02-04

Applicant: Gary L. Cochran ,  Mark D. Bird

Inventor： Gary L. Cochran ,  Mark D. Bird

IPC: F16D31/00 ,  F16D33/00 ,  F16D37/00 ,  F16D39/00 ,  F16D31/02

CPC classification number: F16H61/4192 ,  B60K7/0015 ,  B60W50/14 ,  B60Y2200/147 ,  F16H2059/6861

Abstract: One embodiment of the system comprises a towable machine having at least one hydraulic motor arranged on the machine and operable to drive at least one wheel arranged on the machine. At least one hydraulic propelling pump is arranged to supply hydraulic fluid flow via a hydraulic circuit to the hydraulic motor to selectively drive the wheel. The system has a non-operative configuration wherein hydraulic fluid flow is blocked between the hydraulic motor and the hydraulic pump. A pressure sensor is associated with the hydraulic circuit to detect an improper pressure load when the circuit is in a non-operative configuration, and operates to trigger an alarm element.

Abstract translation: 该系统的一个实施例包括具有设置在机器上的至少一个液压马达并可操作以驱动布置在机器上的至少一个轮的可牵引机器。 至少一个液压推进泵被布置成将经由液压回路的液压流体供给到液压马达以选择性地驱动车轮。 该系统具有其中在液压马达和液压泵之间阻塞液压流体流动的非操作构型。 压力传感器与液压回路相关联以在电路处于非操作配置时检测不正确的压力负载，并且操作以触发报警元件。