Smart braking devices, systems, and methods with signal conditioners
First Claim
1. A sensorized brake pad comprising:
- a backplate;
a block of friction material supported by the backplate;
a passive electrical circuit interposed between the backplate and the block of friction material, the passive electrical circuit includinga piezoelectric sensor configured to generate a sensor signal, anda passive conditioning stage configured to generate an analog conditioned signal based on conditioning the sensor signal; and
an active conditioning stage physically separated from and thermally decoupled from the passive conditioning stage, whereinthe active conditioning stage is configured to generate an analog output signal based on processing the analog conditioned signal.
1 Assignment
0 Petitions
Accused Products
Abstract
Various braking devices, systems, and methods are disclosed. In some embodiments, the braking device includes a support element, a block of friction material supported by the support element, at least one piezoceramic sensor supported by the support element and interposed between the block of friction material (and the support element, and a protective element located at the piezoceramic sensor and embedding the latter. The protective element can have one or more layers of resin-based material applied to protect the piezoceramic sensor and direct a predetermined part of the external compression force onto an area of the support element surrounding the piezoceramic sensor. In some embodiments, a signal transduction device is provided and includes at least one piezoceramic sensor supported on a support element and has an integral protective coating having properties of mechanical and temperature resistance.
-
Citations
20 Claims
-
1. A sensorized brake pad comprising:
-
a backplate; a block of friction material supported by the backplate; a passive electrical circuit interposed between the backplate and the block of friction material, the passive electrical circuit including a piezoelectric sensor configured to generate a sensor signal, and a passive conditioning stage configured to generate an analog conditioned signal based on conditioning the sensor signal; and an active conditioning stage physically separated from and thermally decoupled from the passive conditioning stage, wherein the active conditioning stage is configured to generate an analog output signal based on processing the analog conditioned signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. A method of generating brake pad data for a vehicle, the method comprising:
-
generating a sensor signal using a piezoelectric sensor interposed between a backplate and a block of friction material of a brake pad; generating an analog conditioned signal based on conditioning the sensor signal using a passive conditioning stage; generating an analog output signal based on processing the analog conditioned signal using an active conditioning stage, the active conditioning stage being physically separated from and thermally decoupled from the passive conditioning stage; providing the analog output signal to a control unit that is located externally from the brake pad; and processing the analog output signal using the control unit to generate brake pad data. - View Dependent Claims (13)
-
-
14. An electrical system for generating brake pad data for a vehicle, wherein the electrical system comprises:
-
a piezoelectric sensor interposed between a backplate and a block of friction material of a brake pad, the piezoelectric sensor configured to generate a sensor signal; a passive conditioning stage configured to generate an analog conditioned signal based on conditioning the sensor signal; an active conditioning stage physically separated from and thermally decoupled from the passive conditioning stage, the active conditioning stage configured to generate an analog output signal based on processing the analog conditioned signal; and a control unit configured to process the analog output signal to generate the brake pad data, wherein the brake pad data comprises a digital representation of the sensor signal. - View Dependent Claims (15, 16, 17, 18, 19, 20)
-
Specification