Tire module and method for sensing wheel state variables and/or tire state variables
First Claim
1. A method for sensing wheel state variables, tire state variables or both wheel state variable and tire state variables, wherein a characteristic variable, which is a measure of a length of a tire contact area or a time required to pass through the contact area, is determined using an acceleration switch comprising a base element, a cantilevered beam extending above the base element, a first contact provided on the base element, and a second contact provided on the cantilevered beam a predetermined distance above the first contact, wherein when the acceleration switch experiences a predetermined acceleration, the cantilevered beam bends such that the second contact touches the first contact.
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Abstract
A tire module for sensing wheel and/or tire state variables is provided. The module includes at least one acceleration switch which determines a wheel state variable and/or a tire state variable. A method for sensing wheel state variables and/or tire state variables is also provided. In the method, a characteristic variable which is a measure of the length of the contact area of the tire or the contact area run-through time is determined by an acceleration switch.
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21 Claims
- 1. A method for sensing wheel state variables, tire state variables or both wheel state variable and tire state variables, wherein a characteristic variable, which is a measure of a length of a tire contact area or a time required to pass through the contact area, is determined using an acceleration switch comprising a base element, a cantilevered beam extending above the base element, a first contact provided on the base element, and a second contact provided on the cantilevered beam a predetermined distance above the first contact, wherein when the acceleration switch experiences a predetermined acceleration, the cantilevered beam bends such that the second contact touches the first contact.
- 9. A tire module comprising at least one acceleration switch, the acceleration switch usable to determine a length of a tire contact area or a time required to pass through the contact area, the acceleration switch comprising a base element, a cantilevered beam extending above the base element, a first contact provided on the base element, and a second contact provided on the cantilevered beam a predetermined distance above the first contact, wherein when the acceleration switch experiences a predetermined acceleration, the cantilevered beam bends such that the second contact touches the first contact.
Specification