Test Fixture
First Claim
1. A test fixture for testing a motor vehicle suspension, brake components and wheel components on a motor vehicle sub-frame, said test fixture comprising:
- a base surface;
a lower frame attached to said base surface and dimensioned for the sub-frame to attach thereto;
an upper frame oppositely disposed to said lower frame and dimensioned to attach to the sub-frame;
said lower frame and said upper frame operable to hold the sub-frame above said base surface and allow changes in alignment of the wheel components on the sub-frame;
a shaker system attached to said base surface and dimensioned to attach to the sub-frame, the shaker system operable to provide a predetermined vertical displacement profile to the sub-frame;
a motor attached to an axle assembly on the sub-frame and operable to rotate a rotor at a predetermined rate of rotation;
a non-contact gap sensor, said non-contact sensor operable to attach to the sub-frame and detect movement between a first sub-frame component and a second sub-frame component of the sub-frame.
2 Assignments
0 Petitions
Accused Products
Abstract
A test fixture for testing a motor vehicle suspension, brake components and wheel components on a motor vehicle sub-frame is provided. The test fixture can include a lower frame attached to a base surface and be dimensioned for the motor vehicle sub-frame to be attached thereto. An upper frame oppositely disposed to the lower frame and dimensioned to attach to the sub-frame is also included. A shaker system is attached to the base surface and is operable to provide a predetermined vertical displacement profile to the sub-frame. A motor is attached to an axle assembly on the sub-frame and is operable to rotate a wheel component at a predetermined rate of rotation. A non-contact gap sensor is included and can be attached to the sub-frame and detect or monitor movement between a first sub-frame component and a second sub-frame component.
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Citations
25 Claims
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1. A test fixture for testing a motor vehicle suspension, brake components and wheel components on a motor vehicle sub-frame, said test fixture comprising:
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a base surface; a lower frame attached to said base surface and dimensioned for the sub-frame to attach thereto; an upper frame oppositely disposed to said lower frame and dimensioned to attach to the sub-frame; said lower frame and said upper frame operable to hold the sub-frame above said base surface and allow changes in alignment of the wheel components on the sub-frame; a shaker system attached to said base surface and dimensioned to attach to the sub-frame, the shaker system operable to provide a predetermined vertical displacement profile to the sub-frame; a motor attached to an axle assembly on the sub-frame and operable to rotate a rotor at a predetermined rate of rotation; a non-contact gap sensor, said non-contact sensor operable to attach to the sub-frame and detect movement between a first sub-frame component and a second sub-frame component of the sub-frame. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A process for testing a motor vehicle suspension, brake components and wheel components on a motor vehicle sub-frame, the process comprising:
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providing a lower frame attached to a base surface, the lower frame dimensioned for a lower side of the sub-frame to be attached thereto; attaching the sub-frame to the lower frame; providing an upper frame oppositely disposed to the lower frame, the upper frame dimensioned to attach to an upper side of the sub-frame; attaching the upper frame to the sub-frame; providing a shaker system operable to provide a predetermined vertical displacement profile to the sub-frame; attaching the shaker system to the base surface and the sub-frame; providing a motor operable to rotate an axle assembly on the sub-frame at a predetermined rate of rotation to the wheel rotor; attaching the motor to the wheel rotor on the sub-frame; providing a non-contact gap sensor operable to detect movement between a first sub-frame component and a second sub-frame component; attaching the non-contact gap sensor to the sub-frame; applying the vertical displacement profile to the sub-frame using the shaker system; and detecting the movement between the first sub-frame component and the second sub-frame component using the non-contact gap sensor. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A test fixture assembly for testing a motor vehicle suspension, brake components and wheel components on a motor vehicle sub-frame, said test fixture assembly comprising:
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a lower frame attached to a base surface; a sub-frame attached to said lower frame, said sub-frame having an axle assembly attached thereto; an upper frame oppositely disposed from said lower frame and attached to said sub-frame, said upper frame having a spring member operable to adjust a ride height on said sub-frame; a shaker system located below and attached to said base surface and said sub-frame, said shaker system operable to shake said sub-frame at a predetermined frequency and magnitude; a motor attached to said wheel rotor and operable to rotate said wheel rotor at a predetermined rotation rate; and at least one non-contact gap sensor attached to said sub-frame and operable to detect movement between said motor vehicle suspension, brake components and wheel components on said sub-frame. - View Dependent Claims (22, 23, 24, 25)
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Specification