Method for allowing rapid evaluation of chassis elastomeric devices in motor vehicles
First Claim
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1. A method of rapidly evaluating variations of chassis elastomeric devices used in motor vehicles, the method comprising the steps of:
- providing at least one magnetorheological elastomer;
providing a parametric controller to allow a test operator to selectively generate an operator input signal;
providing a display for displaying a signal representative of a physical state of said magnetorheological elastomer;
receiving the operator input signal and generating a parametric state signal therefrom;
communicating the parametric state signal from the parametric controller to an elastomer control module;
generating an electrical current in response to the parametric state signal; and
communicating the electrical current to an electrical coil operatively associated with at least one magnetorheological elastomer, thereby generating a magnetic field so as to establish a stiffness of at least one magnetorheological elastomer,;
generating an adjusted operator input signal;
receiving the adjusted operator input signal and generating an adjusted parametric state signal therefrom;
displaying a signal representative of an adjusted physical state of said magnetorheological elastomer;
communicating the adjusted parametric state signal from the parametric controller to the elastomer control module;
generating an adjusted electrical current in response to the adjusted parametric state signal; and
communicating the adjusted electrical current to the electrical coil operatively associated with at least one magnetorheological elastomer, thereby generating an adjusted magnetic field so as to adjust the stiffness of at least one magnetorheological elastomer; and
evaluating changes in ride, handling, noise, vibration and harshness resulting from the adjusted parametric state signal.
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Abstract
A method allows the rapid evaluation of physical properties of chassis elastomeric devices in a motor vehicle. A parametric controller (26) provides a parametric state signal to a elastomer control module (24), which in turn generates an appropriate electrical current signal which is communicated to a variable elastomeric device (22) which includes a magnetorheological elastomer having iron particles embedded therein and a coil operatively associated therewith. When the coil is energized by electrical current signal provided from the elastomer control module (24), a magnetic field is generated which provides predetermined variability in the physical properties of the elastomeric device (22), allowing the rapid evaluation of vehicle performance for given physical properties of the elastomeric device (22).
72 Citations
2 Claims
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1. A method of rapidly evaluating variations of chassis elastomeric devices used in motor vehicles, the method comprising the steps of:
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providing at least one magnetorheological elastomer; providing a parametric controller to allow a test operator to selectively generate an operator input signal; providing a display for displaying a signal representative of a physical state of said magnetorheological elastomer; receiving the operator input signal and generating a parametric state signal therefrom; communicating the parametric state signal from the parametric controller to an elastomer control module; generating an electrical current in response to the parametric state signal; and communicating the electrical current to an electrical coil operatively associated with at least one magnetorheological elastomer, thereby generating a magnetic field so as to establish a stiffness of at least one magnetorheological elastomer,; generating an adjusted operator input signal; receiving the adjusted operator input signal and generating an adjusted parametric state signal therefrom; displaying a signal representative of an adjusted physical state of said magnetorheological elastomer; communicating the adjusted parametric state signal from the parametric controller to the elastomer control module; generating an adjusted electrical current in response to the adjusted parametric state signal; and communicating the adjusted electrical current to the electrical coil operatively associated with at least one magnetorheological elastomer, thereby generating an adjusted magnetic field so as to adjust the stiffness of at least one magnetorheological elastomer; and evaluating changes in ride, handling, noise, vibration and harshness resulting from the adjusted parametric state signal. - View Dependent Claims (2)
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Specification
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Current AssigneeFord Global Technologies, LLC (Ford Motor Company)
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Original AssigneeFord Global Technologies, LLC (Ford Motor Company)
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InventorsNichols, Mark Edward, Stewart, William Mcmurray, Mark, Joseph Steven, Ginder, John Matthew, Elie, Larry Dean
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Primary Examiner(s)MCCALL, ERIC SCOTT
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Application NumberUS08/863,795Time in Patent Office889 DaysField of Search73/11.04, 73/11.07, 267/140.14, 267/140.15, 267/201, 267/257, 267/258, 267/276, 267/279, 267/280, 267/292, 280/5.515, 280/5.516, 280/124.177US Class Current73/11.04CPC Class CodesB60G 17/019 characterised by the type o...B60G 2200/142 with a single lateral arm, ...B60G 2200/1442 including longitudinal rodsB60G 2200/182 with one longitudinal arm o...B60G 2204/11 Mounting of sensors thereonB60G 2204/116 Sensors coupled to the susp...B60G 7/02 Attaching arms to sprung pa...F16F 1/3863 characterised by the rigid ...
