US 11,919,494 B2
Method for detecting malfunctions of an electro-actuated brake apparatus of a motor vehicle
Samuele Mazzoleni, Bergamo (IT); Massimo Di Stefano, Bergamo (IT); Alessandro Rossi, Bergamo (IT); and Luca Cappelletti, Bergamo (IT)
Assigned to Brembo, S.p.A., Bergamo (IT)
Appl. No. 17/272,956
Filed by Freni Brembo S.p.A., Bergamo (IT)
PCT Filed Aug. 7, 2019, PCT No. PCT/IB2019/056717
§ 371(c)(1), (2) Date Mar. 3, 2021,
PCT Pub. No. WO2020/049381, PCT Pub. Date Mar. 12, 2020.
Claims priority of application No. 102018000008312 (IT), filed on Sep. 3, 2018.
Prior Publication US 2021/0276525 A1, Sep. 9, 2021
Int. Cl. B60T 17/22 (2006.01); B60T 8/171 (2006.01); B60T 8/88 (2006.01); B60T 13/74 (2006.01); F16D 66/00 (2006.01)
CPC B60T 17/221 (2013.01) [B60T 8/171 (2013.01); B60T 8/885 (2013.01); B60T 13/745 (2013.01); F16D 66/00 (2013.01); B60T 2250/04 (2013.01); B60T 2270/406 (2013.01); B60T 2270/88 (2013.01); F16D 2066/001 (2013.01); F16D 2066/003 (2013.01); F16D 2066/005 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A method for detecting malfunctions of an electro-actuated brake apparatus of a motor vehicle, the apparatus including:
an electronic control unit;
an electro-actuated brake caliper electrically actuated by said electronic control unit for generating a clamping force on a disc of the brake apparatus in response to a control signal generated by the electronic control unit,
the method comprising the steps of:
providing, in the electronic control unit, a functional control block and a first functional block consisting of a numerical model representative of the electro-actuated brake caliper;
providing a target signal to the functional control block for generating said control signal to operate the electro-actuated brake caliper;
providing said target signal to the first functional block for generating a first signal representative of a theoretical quantity associated with the numerical model representative of the electro-actuated brake caliper;
comparing said first signal with a feedback signal representative of a real operating quantity associated with the electro-actuated brake caliper for generating an error signal to be sent to a second functional block of the electronic control unit;
performing, by said second functional block, an error validation check to provide information on the operating state of the electro-actuated brake caliper to the electronic control unit.