公开(公告)号：US20070255471A1

公开(公告)日：2007-11-01

申请号：US11413187

申请日：2006-04-28

Applicant: Michael Wallis ,  Paul Ring ,  Giles Sorrells ,  Conrad Grembowicz ,  Jason Carter

Inventor： Michael Wallis ,  Paul Ring ,  Giles Sorrells ,  Conrad Grembowicz ,  Jason Carter

IPC: G06F19/00

CPC classification number: F02D41/1497 ,  B60W30/1846 ,  B60W2050/0089 ,  F02D41/0215 ,  F02D2200/1004 ,  F02D2200/101 ,  F02D2400/12 ,  G01L3/24 ,  G01M13/025

Abstract: A torque estimator is disclosed for estimating torque on a machine. A computer system may include a torque estimator module located on the machine. The torque estimator module may be configured to receive a plurality of engine parameters, receive a drivetrain component parameter, determine an estimated torque value at the drivetrain component based on the plurality of engine parameters and the drivetrain component parameter. The computer system also may include an analysis module located on the machine. The analysis module may be configured to receive the estimated torque value and the drivetrain component parameter, and update a histogram data structure based on the estimated torque value and the drivetrain component parameter. The analysis module may also be configured to evaluate the histogram data structure in order to determine if excessive torque is being applied to a drivetrain component.

Abstract translation: 公开了一种用于估计机器上的扭矩的扭矩估计器。 计算机系统可以包括位于机器上的扭矩估计器模块。 扭矩估计器模块可以被配置为基于多个发动机参数和传动系分量参数来接收多个发动机参数，接收传动系分量参数，确定传动系分量处的估计扭矩值。 计算机系统还可以包括位于机器上的分析模块。 分析模块可以被配置为接收估计的扭矩值和传动系分量参数，并且基于估计的扭矩值和传动系分量参数来更新直方图数据结构。 分析模块还可以被配置为评估直方图数据结构，以便确定是否将过大的扭矩应用于传动系分量。

公开(公告)号：US20050257604A1

公开(公告)日：2005-11-24

申请号：US10848310

申请日：2004-05-18

Applicant: Masoud Zavarehi ,  Yang Liu ,  Conrad Grembowicz

Inventor： Masoud Zavarehi ,  Yang Liu ,  Conrad Grembowicz

IPC: F02B33/22 ,  F02D41/00 ,  F02D41/14 ,  F02D41/22

CPC classification number: F02D41/1497 ,  F02D41/1498

Abstract: Individual cylinder output deviations from a normal operating engine cylinder are detected via an analysis of crank shaft speed fluctuations. In the detection phase, the engine is operated at a steady state low idle condition, and engine speed data is collected over a plurality of engine cycles. This data is then averaged, filtered and compared to expected engine speed data. A substantial deviation from the expected speed data in the region of crank shaft angles associated with an individual cylinder during its power stroke adjacent its top dead center position indicates a power level deviation in that cylinder. The magnitude of the power level deviation can then be assessed through a similar procedure where engine speed data is collected, averaged, filtered and compared to expected engine speed data when the engine is operating in a steady state rated condition.

Abstract translation: 通过对曲轴转速波动的分析来检测与正常运行的发动机气缸的独立气缸输出偏差。 在检测阶段，发动机在稳定状态低怠速状态下工作，并且在多个发动机循环中收集发动机速度数据。 然后对该数据进行平均，过滤并与预期的发动机转速数据进行比较。 在与独立气缸相邻的曲柄轴角度区域内的预期速度数据的显着偏差在其邻近其上死点位置的功率冲程期间指示在该气缸中的功率水平偏差。 然后可以通过类似的程序来评估功率水平偏差的大小，其中发动机速度数据被收集，平均，过滤并且当发动机在稳态额定条件下运行时与预期发动机转速数据进行比较。