Integral housing load cell system and apparatus
First Claim
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1. An electric motor actuator for a brake system, comprising:
- a housing comprising an outer surface, and having a first length along a first housing axis, a second length along a second housing axis orthogonal to the first housing axis, and a third length along a third housing axis, orthogonal to the first housing axis and the second housing axis, the electric motor actuator configured to couple to a pressure generating device of the brake system to receive tensioning along the first housing axis by the brake system;
a first strain gage installed on the outer surface of the housing; and
a second strain gage installed on the outer surface of the housing, wherein the first strain gage is installed on the outer surface of the housing 180°
degrees from the second strain gage, wherein the first strain gage and the second strain gage are configured to measure tensioning along the first housing axis imparted by the brake system.
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Abstract
A strain gage system for an electric motor actuator is provided. The strain gage system may be coupled to or integrally formed in a housing of the electric motor actuator. In various embodiments, the strain gauge system may comprise one or more principle strain gages. In various embodiments, the strain gage system may comprise one or more transverse strain gages.
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Citations
20 Claims
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1. An electric motor actuator for a brake system, comprising:
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a housing comprising an outer surface, and having a first length along a first housing axis, a second length along a second housing axis orthogonal to the first housing axis, and a third length along a third housing axis, orthogonal to the first housing axis and the second housing axis, the electric motor actuator configured to couple to a pressure generating device of the brake system to receive tensioning along the first housing axis by the brake system; a first strain gage installed on the outer surface of the housing; and a second strain gage installed on the outer surface of the housing, wherein the first strain gage is installed on the outer surface of the housing 180°
degrees from the second strain gage, wherein the first strain gage and the second strain gage are configured to measure tensioning along the first housing axis imparted by the brake system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A strain gauge system for an electric motor actuator of a brake system, comprising:
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a housing comprising a housing outer surface and a first flange coupled to the housing outer surface; a first strain gage assembly installable on the housing outer surface, wherein the first flange and the first strain gage assembly are centered on a first axis of the housing and wherein a portion of the first strain gage assembly is coupled to the housing outer surface at a first distance from the first flange; a wiring terminal in electronic communication with the first strain gauge assembly; and a wire configured to connect the first strain gage assembly to the wiring terminal, wherein the electric motor actuator is configured to couple to a pressure generating device of the brake system, wherein the first strain gage assembly is configured to measure tensioning imparted by the brake system along a second axis of the housing, orthogonal to the first axis of the housing. - View Dependent Claims (12, 13, 14, 15, 16)
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17. An electric motor actuator for a brake system, comprising:
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A cylindrical housing comprising a housing outer surface and a first end and a second end aligned along a cylindrical axis, the first end having a first flange and a second flange; a cover removably coupled to the second end; a first principle strain gage installed between the first flange and the second end on the housing outer surface; and a second principle strain gage installed between the second flange and the second end on the housing outer surface wherein the first principle strain gage and the second principle strain gage are configured to measure tensioning along the cylindrical axis imparted by the brake system. - View Dependent Claims (18, 19, 20)
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Specification