A method of testing a switch looks at the second derivative of the resistance force to movement. The second derivative is most indicative of the feel the operator will experience when utilizing the switch. It is desirable to keep the second derivative to a minimum for the switch at locations other than end of travel or detent positions. By investigating the second derivative, one is provided with feedback of areas on the switch that might require further investigation or re-evaluation.
申请公布号
WO9830875(A1)
申请公布日期
1998.07.16
申请号
WO1997US22704
申请日期
1997.12.17
申请人
UNITED TECHNOLOGIES AUTOMOTIVE, INC.
发明人
DAHLSTROM, JONATHAN;ELLISON, DONALD, E.;RATKE, RICHARD