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1. 发明专利

GB2547058B Driveline model 未知
公开(公告)号：GB2547058B
公开(公告)日：2018-02-21
申请号：GB201606813
申请日：2016-04-19
申请人： ROMAX TECH LIMITED
发明人： BARRY JAMES , KATHRYN TAYLOR
IPC分类号： G06F17/50
摘要： A system for modelling a driveline, wherein the driveline comprises a plurality of components. The system comprises: a component-efficiency-processor (104a, 104b) configured to: receive a component model (102a, 102b) for one or more of the plurality of components; and generate a component-efficiency-map for the one or more components based on the received corresponding component model (102a, 102b). The system also comprises a driveline-efficiency-processor (106) configured to generate a driveline-efficiency-metric (108) for the driveline based on (i) the component-efficiency-maps for the one or more of the plurality of components, (ii) a driveline-layout (110) representative of a layout/inter-engagement of the plurality of components, and (iii) one or more driving-profiles.

2. 发明专利

GB2566368B Driveline Modeller 未知
公开(公告)号：GB2566368B
公开(公告)日：2020-03-04
申请号：GB201814779
申请日：2018-09-11
申请人： ROMAX TECH LIMITED
发明人： BARRY JAMES , GEORGE GRANT , JAMES DAY , SHARAD JAIN , ANNABEL SHAHAJ , KATHRYN TAYLOR
IPC分类号： G06F30/17 , G06F30/15
摘要： A computer-implemented method for modelling a driveline, the driveline comprising a plurality of components. The method comprising the steps of: a) receiving a parametric description of the driveline; b) creating a thermal model of the driveline from the parametric description; c) calculating a temperature distribution for one or more components of the driveline using the thermal model; d) determining a deflection of one or more components of the driveline caused by the thermal distribution, based on the parametric description and the temperature distribution; and e) calculating a performance metric of the driveline based on the determined deflection of the one or more components.

3. 发明专利

GB2564919B Gearsets 未知
公开(公告)号：GB2564919B
公开(公告)日：2019-11-20
申请号：GB201801556
申请日：2018-01-31
申请人： ROMAX TECH LIMITED
发明人： BARRY JAMES , MICHAEL PLATTEN , SHARAD JAIN , KATHRYN TAYLOR , CHRISTOPHER HALSE , MAIK HOPPERT
IPC分类号： F16H57/00 , G06F17/50
摘要： A method for designing a gearset meeting one or more design targets is described. In particular, the design target is efficiency. Initially, a size and ratio of the gear set is specified. Gear friction coefficients are then calculated, and a value for a design target for the gear set is calculated. One or more of the macro-geometry parameters are modified, and the macro-geometry parameters are chosen such that the advantageous effects of one macro-geometry parameter on the design target counteract any disadvantageous effects of another macro-geometry parameter. In this way, a design for a gearset meeting the one or more design targets is produced. The efficiency calculation includes the effect of a lubricant. Further design targets can include gear noise and gear durability.

4. 发明专利

GB2566368A Driveline Modeller 未知
公开(公告)号：GB2566368A
公开(公告)日：2019-03-13
申请号：GB201814779
申请日：2018-09-11
申请人： ROMAX TECH LIMITED
发明人： BARRY JAMES , GEORGE GRANT , JAMES DAY , SHARAD JAIN , ANNABEL SHAHAJ , KATHRYN TAYLOR
IPC分类号： G06F17/50
摘要： A parametric description of the driveline is used to create a thermal model of the Driveline, allowing calculating a heat distribution for one or more components of the driveline and determination of a resulting deflection of component. A driveline performance metric calculated based on the determined deflection of the one or more components can then be made. A structural meshed model may be used to determine the thermal deflection, which may then be used to recalculate the thermal model, and a loop-end condition used to determine whether to update the parameters in the model. As a result, a performance metric such as efficiency can be calculated. Fluid temperature associated with the driveline may be input from a sensor, a drive cycle for different environmental conditions, and the thermal model calculate power loss for the components and operating misalignment (gear and bearing stress, fatigue, scuffing (using lubricant temperature), stiffness, planetary gear load sharing, calculated due to transmission error, torque ripple and stator radial forces) calculated.

5. 发明专利

GB2583442A Rotor dynamics 未知
公开(公告)号：GB2583442A
公开(公告)日：2020-11-04
申请号：GB201901008
申请日：2019-01-24
申请人： ROMAX TECH LIMITED
发明人： BARRY JAMES , SHARAD JAIN , KATHRYN TAYLOR , LEWIS SMITH
IPC分类号： G06F30/15
摘要： Building a structural model of the drivetrain comprising a rotor and bearings, and solving the structural model of the drivetrain, using either i) an iterative quasi-static analysis, or ii) a dynamic analysis of the structural model of the drivetrain, accounting for non-linear variation of bearing stiffness with load or rotation speed. This allows calculation of the unbalance response of the rotor. This may be used for the design of a drivetrain, with a design target used to determine whether the unbalance response is acceptable. Rotational speed an unbalance may be used to provide a quasi-static iterative calculation, initially below the critical shaft speed, and additional displacement applied, with repetition until the rotainal speed approaches the shaft critical speed. The housing stiffness and friction instabilities from gear couplings and splines may also be included.

6. 发明专利

GB2566831A Driveline designer 未知
公开(公告)号：GB2566831A
公开(公告)日：2019-03-27
申请号：GB201815724
申请日：2018-09-26
申请人： ROMAX TECH LIMITED
发明人： BARRY JAMES , KATHRYN TAYLOR , SHARAD JAIN , MAIK HOPPERT
IPC分类号： G06F17/50
摘要： A parametric description of the driveline is used to create a tribology model of the driveline, allowing calculating of a driveline performance metric calculated based on one or more traction co-efficients. A dynamic model may be run determining lubricant film thickness, and lubrication regime and temperature distribution analyzed, to give a thermal model of the driveline from the parameters, such as manufacturing tolerances. A loop-end condition may be used to determine whether to update the parameters in the model. As a result, a performance metric such as efficiency can be calculated. A bearing skidding map may be built, and operating points across the bearings operating range determined, with traction coefficients, the dynamic data and the heat distribution, and bearing drag, misalignment as a function of system deflections, or clutch friction calculated.

7. 发明专利

GB2550986A Planetary gearset 未知
公开(公告)号：GB2550986A
公开(公告)日：2017-12-06
申请号：GB201617550
申请日：2016-10-17
申请人： ROMAX TECH LIMITED
发明人： BARRY JAMES , MICHAEL PLATTEN , SHARAD JAIN , KATHRYN TAYLOR , CHRISTOPHER HALSE , MAIK HOPPERT
IPC分类号： G06F17/50
摘要： A method for designing a planetary gearset meeting one or more design targets, comprising the steps of specifying a size and ratio of the gearset, specifying a number of planets, calculating all valid combinations of tooth numbers and planet numbers that satisfy one or more constraints, selecting a starting combination, calculating a value for a design target for the gearset and modifying one or more macro-geometry parameters. The macro-geometry parameters are chosen so that the positive effects of one parameter on the design target counteract any negative effects of another macro-geometry parameter. This method produces a planetary gearset meeting one or more design targets. The design target may be for bending strength wherein the last step comprises calculating bending strengths for the gear teeth and comparing with the target design, modifying the macro-geometry parameters when outside of the design target. The macro-geometry parameters may relate to the module and comprise reducing power loss by reducing contact length between two meshing teeth and increasing bending strength by increasing either one of the pressure angle, helix angle, face width or centre distance. The method can be implemented on a computer system as part of a computer-aided engineering system.

8. 发明专利

GB2566831C Driveline designer 未知
公开(公告)号：GB2566831C
公开(公告)日：2020-06-24
申请号：GB201815724
申请日：2018-09-26
申请人： ROMAX TECH LIMITED
发明人： BARRY JAMES , KATHRYN TAYLOR , SHARAD JAIN , MAIK HOPPERT
IPC分类号： G06F30/15 , G06F30/17
摘要： A computer-implemented method for modelling a driveline. The driveline comprising a plurality of components. The method comprising the steps of: a) receiving a parametric description of the driveline; b) creating a tribology model of the driveline from the parametric description; c) calculating one or more traction coefficients for one or more components of the driveline using the tribology model; and d) calculating a performance metric of the driveline, based on the parametric description and the one or more traction coefficients.

9. 发明专利

GB2564919A Gearsets 未知
公开(公告)号：GB2564919A
公开(公告)日：2019-01-30
申请号：GB201801556
申请日：2018-01-31
申请人： ROMAX TECH LIMITED
发明人： BARRY JAMES , MICHAEL PLATTEN , SHARAD JAIN , KATHRYN TAYLOR , CHRISTOPHER HALSE , MAIK HOPPERT
IPC分类号： F16H57/00 , G06F17/50
摘要： A method for designing a gearset meeting one or more design targets, e.g. efficiency. Initially, a size and ratio of the gear set is specified. Gear friction coefficients are then calculated, and a value for a design target for the gear set is calculated. One or more of the macro-geometry parameters are modified, and the macro-geometry parameters are chosen such that the advantageous effects of one macro-geometry parameter on the design target counteract any disadvantageous effects of another macro-geometry parameter. In this way, a design for a gearset meeting the one or more design targets is produced. The efficiency calculation can includes the effect of a lubricant and further design targets can include gear noise and gear durability.

10. 发明专利

GB2581879A Rotor dynamics 未知
公开(公告)号：GB2581879A
公开(公告)日：2020-09-02
申请号：GB202001063
申请日：2020-01-24
申请人： ROMAX TECH LIMITED
发明人： BARRY JAMES , SHARAD JAIN , KATHRYN TAYLOR , LEWIS SMITH
IPC分类号： G06F30/17 , G06F30/20
摘要： Building a structural model of the drivetrain comprising a rotor and bearings, and solving the structural model of the drivetrain, using either i) an iterative quasi-static analysis, or ii) a dynamic analysis of the structural model of the drivetrain, accounting for non-linear variation of bearing stiffness with load or rotation speed. This allows calculation of the unbalance response of the rotor. This is used for the design of a drivetrain, with a design target used to determine whether the unbalance response is acceptable. Rotational speed and unbalance may be used to provide a quasi-static iterative calculation, initially below the critical shaft speed, and additional displacement applied, with repetition until the rotational speed approaches the shaft critical speed. The housing stiffness and friction instabilities from gear couplings and splines may also be included.

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