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1. 发明申请

WO2013109512A1 SYSTEM AND METHOD FOR CONTROLLING ENGINE TORQUE LOAD 审中-公开
标题翻译：用于控制发动机扭矩负荷的系统和方法
公开(公告)号：WO2013109512A1
公开(公告)日：2013-07-25
申请号：PCT/US2013/021508
申请日：2013-01-15
申请人： CATERPILLAR INC.
发明人： PETERSON, Grant, Steven , ANDERSON, Randall, Todd
IPC分类号： F02D29/02 , F02D45/00 , F02D41/04
CPC分类号： B60W10/06 , B60W10/103 , B60W30/1884 , B60W2510/0638 , B60W2710/0644 , B60W2710/0666 , B60W2710/1005
摘要： A machine (10) includes a plurality of torque consuming devices (46) drivingly coupled with an internal combustion engine (20). The plurality of torque consuming devices (46) includes a continuously variable transmission (14) coupling the internal combustion engine (20) with a plurality of ground engaging elements (16). An electronic controller (52) is in communication with the internal combustion engine (20) and the plurality of torque consuming devices (46) and is configured to execute a torque load control algorithm for generating a torque load limit (58, 59) based, at least in part, on an engine underspeed value (57, 62, 114, 124, 134, 144, 154, 164). The electronic controller (52) identifies a potential engine stall event during which a current engine speed (55, 60) of the internal combustion engine (20) drops below the engine underspeed value (57, 62, 114, 124, 134, 144, 154, 164) by a predetermined amount, and executes a transient torque load control algorithm to adjust the torque load limit (58, 59, 63, 64) responsive to the identification of the potential engine stall event.
摘要翻译：机器（10）包括与内燃机（20）驱动连接的多个扭矩消耗装置（46）。多个扭矩消耗装置（46）包括将内燃机（20）与多个地面接合元件（16）联接的无级变速器（14）。电子控制器（52）与内燃机（20）和多个扭矩消耗装置（46）连通，并且构造成执行扭矩负载控制算法，用于基于以下方式产生转矩负载极限（58,59）至少部分地基于发动机低速值（57,62,114,124,134,144,154,164）。电子控制器（52）识别出内燃机（20）的当前发动机转速（55,60）低于发动机低速值（57,62,114,124,134,144，并且执行瞬时转矩负载控制算法，以响应于所述潜在发动机失速事件的识别来调整所述转矩负载极限（58,59,63,64）。

2. 发明申请

WO2013078026A1 METHOD OF CONTROLLING GEAR RATIO RATE OF CHANGE IN CONTINUOUSLY VARIABLE TRANSMISSION 审中-公开
标题翻译：控制连续可变变速器变速比的方法
公开(公告)号：WO2013078026A1
公开(公告)日：2013-05-30
申请号：PCT/US2012/064599
申请日：2012-11-12
申请人： CATERPILLAR INC.
发明人： ANDERSON, Randall, Todd , WILL, Bradley, John
IPC分类号： F16H59/04 , F16H61/02 , F16H61/66 , F16H61/686
CPC分类号： F16H61/462 , B60W2540/165
摘要： A method is provided for controlling a gear ratio rate of change in a machine (10) having a continuously variable transmission (14). The method includes moving an operator input device (30, 34, 36) to a changed position (114, 124, 134, 144, 154,164, 167), receiving electronic data indicative of the changed position (114, 124,134, 144, 154, 164, 167), and determining a non-limited desired gear ratio based at least in part on the changed position (114, 124, 134, 144, 154, 164, 167). Amaximum gear ratio rate of change (112, 122, 132, 142, 152, 162, 166) corresponding to the changed position (114, 124, 134, 144, 154, 164, 167) is selected from an electronically stored gear ratio rate map (110, 120, 130, 140, 150, 160, 165). A current desired gear ratio is determined based at least in part on the non-limited desired gear ratio and the maximum gear ratio rate of change (112, 122, 132, 142, 152, 162, 166). The method also includes changing a commanded gear ratio of the continuously variable transmission (14) to the current desired gear ratio using electronic signals.
摘要翻译：提供一种用于控制具有无级变速器（14）的机器（10）的变速比变化率的方法。该方法包括将操作者输入装置（30,34,36）移动到改变位置（114,124,134,144,154,164,167），接收指示改变位置的电子数据（114,124,134,144,154，并且至少部分地基于改变的位置（114,124,134,144,154,164,167）来确定非限制的期望变速比。对应于改变的位置（114,124,134,144,154,164,167）的最大变速比（112,122,132,142,152,162,166）选自电子存储的齿轮比率地图（110,120,130,140,150,160,165）。至少部分地基于非限制的期望变速比和最大变速比变化率（112,122,132,142,152,162,166）来确定当前期望的变速比。该方法还包括使用电子信号将无级变速器（14）的指令齿轮比改变为当前期望的传动比。

3. 发明申请

WO2013148921A1 TRANSMISSION CONTROL SYSTEM 审中-公开
标题翻译：传动控制系统
公开(公告)号：WO2013148921A1
公开(公告)日：2013-10-03
申请号：PCT/US2013/034228
申请日：2013-03-28
申请人： CATERPILLAR INC.
发明人： LI, Wei , ANDERSON, Randall, Todd , HOFF, Brian, Douglas
IPC分类号： F16H59/14 , F16H59/36 , F16H61/02 , F16H61/38
CPC分类号： F16H61/21 , B60Y2200/14 , Y10T477/677 , Y10T477/69 , Y10T477/69367
摘要： A method of controlling a transmission (11) associated with a machine includes determining a first target torque of the transmission (11). The first target torque includes a combination of a torque limit associated with a power source (17) of the machine and a virtual retarding torque. The method also includes directing the transmission (11) to generate a first output corresponding to the first target torque at an interface between the transmission (11) and the power source (17). The first output of the transmission (11) increases a speed of the power source (17) from a first power source speed to a second power source speed and decreases a travel speed of the machine from a first travel speed to a second travel speed. The method further includes determining that the first target torque is not equal to the torque limit, and determining a second target torque of the transmission (11) in response to determining that the first target torque is not equal to the torque limit. The second target torque is less than the first target torque.
摘要翻译：控制与机器相关联的变速器（11）的方法包括确定变速器（11）的第一目标转矩。第一目标扭矩包括与机器的电源（17）相关联的扭矩限制和虚拟延迟转矩的组合。该方法还包括引导变速器（11）在变速器（11）和动力源（17）之间的接口处产生对应于第一目标转矩的第一输出。变速器（11）的第一输出将电源（17）的速度从第一电源速度提高到第二电源速度，并将机器的行驶速度从第一行驶速度降低到第二行驶速度。该方法还包括确定第一目标转矩不等于转矩极限，以及响应于确定第一目标转矩不等于转矩极限，确定变速器（11）的第二目标转矩。第二目标转矩小于第一目标转矩。

4. 发明申请

WO2013106504A1 METHOD OF CONTROLLING GEAR RATIO RATE OF CHANGE IN CONTINUOUSLY VARIABLE TRANSMISSION 审中-公开
标题翻译：控制连续可变变速器变速比的方法
公开(公告)号：WO2013106504A1
公开(公告)日：2013-07-18
申请号：PCT/US2013/020932
申请日：2013-01-10
申请人： CATERPILLAR INC.
发明人： ANDERSON, Randall, Todd , WILL, Bradley, John
IPC分类号： F16H61/04 , F16H61/06 , F16H61/688
CPC分类号： F16H61/47 , E02F9/2079 , F16H59/06 , F16H2059/0256 , Y10T477/6197
摘要： A method for controlling a gear ratio rate of change in a machine (10) having a continuously variable transmission (14) includes moving an operator input device (30) to a changed position, receiving electronic data indicative of the changed position, and determining a non-limited desired gear ratio (104) based on the changed position. A maximum gear ratio rate of change (102) corresponding to the non-limited desired gear ratio (104) and an actual gear ratio (106) of the continuously variable transmission (14) is selected from an electronically stored gear ratio rate map (100). A current desired gear ratio is determined based on a previous desired gear ratio and the maximum gear ratio rate of change (102). A commanded gear ratio of the continuously variable transmission (14) is changed to the current desired gear ratio using electronic signals.
摘要翻译：一种用于控制具有无级变速器（14）的机器（10）的变速比变化率的方法，包括将操作者输入装置（30）移动到改变位置，接收指示改变位置的电子数据，以及确定基于改变的位置的非限制的期望齿轮比（104）。从电子存储的齿轮比速率图（100）中选择对应于无限变速传动装置（104）的无限制期望传动比（104）和实际变速比（106）的最大变速比变化率（102））。基于先前的所需齿轮比和最大齿轮比变化率（102）来确定当前期望的传动比。使用电子信号将无级变速器（14）的指令齿轮比改变为当前期望的传动比。

5. 发明申请

WO2013078025A1 METHOD OF EFFECTING SIMULTANEOUS DISPLACEMENT CHANGES IN HYDROSTATIC DRIVE MACHINE 审中-公开
标题翻译：液压驱动机械同步位移变化的方法
公开(公告)号：WO2013078025A1
公开(公告)日：2013-05-30
申请号：PCT/US2012/064597
申请日：2012-11-12
申请人： CATERPILLAR INC.
发明人： ANDERSON, Randall, Todd , WILL, Bradley, John
IPC分类号： B60K17/10 , F16H61/04 , F16H61/06
CPC分类号： F16H61/452 , F16H61/462
摘要： A method is provided for controlling a gear ratio change in a hydrostatic drive machine (10). The hydrostatic drive machine (10) includes a variable displacement pump (18) and at least one variable displacement motor (22) fluidly connected with the variable displacement pump (18). The method includes a step of determining a gear ratio rate of change (106) corresponding to a change from a current gear ratio to a new gear ratio. Start and stop overlap gear ratios (124, 126, 154, 156) corresponding to the gear ratio rate (106) are determined and define an overlap range (128, 158). The current gear ratio is changed to the new gear ratio using electronic signals at least in part by simultaneously changing displacements of the variable displacement pump (18) and the at least one variable displacement motor (22) at gear ratios within the overlap range (128, 158), and sequentially changing displacements of the variable displacement pump (18) and the at least one variable displacement motor (22) at gear ratios outside the overlap range (128, 158).
摘要翻译：提供一种用于控制静液压驱动机器（10）中的变速比变化的方法。静液压驱动机（10）包括可变排量泵（18）和与可变排量泵（18）流体连接的至少一个可变排量马达（22）。该方法包括确定对应于从当前齿轮比变化到新齿轮比的变速比变化率（106）的步骤。确定对应于传动比率（106）的起始和停止重叠齿轮比（124,126,154,156）并且限定重叠范围（128,158）。至少部分地通过同时改变可变排量泵（18）和至少一个可变排量马达（22）在重叠范围内的传动比（128）的位移，将当前齿轮比改变为新的传动比，158），并且以重叠范围（128,158）之外的齿轮比依次改变所述可变排量泵（18）和所述至少一个可变排量马达（22）的位移。

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