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Method for detecting malfunctions of an electro-actuated brake apparatus of motor vehicle

A technology for braking devices and motor vehicles, which is applied in the direction of braking transmission devices, braking action activation devices, brakes, etc., and can solve problems such as inapplicable braking systems

Active Publication Date: 2021-06-11
FRENI BREMBO SPA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] However, this solution is not suitable for braking systems other than split braking systems

Method used

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  • Method for detecting malfunctions of an electro-actuated brake apparatus of motor vehicle
  • Method for detecting malfunctions of an electro-actuated brake apparatus of motor vehicle
  • Method for detecting malfunctions of an electro-actuated brake apparatus of motor vehicle

Examples

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Embodiment Construction

[0041] refer to figure 1 and figure 2 , denoted generally by the numerals 100, 200 of a simplified block diagram of an electrically actuated braking device for a motor vehicle, comprising an electrically actuated braking device connected to an electrically actuated braking device operating according to the method of the invention The electronic control unit 50, 50' of the pliers 10, 20.

[0042] Particularly, figure 1 The electrically actuated braking device 100 in is an electromechanical braking device comprising a corresponding electronic control unit 50 connected to an electromechanical brake caliper 10 for electrically actuating said brake caliper 10 .

[0043] Similarly, figure 2 The electrically actuated braking device 200 in is an electrohydraulic braking device comprising a corresponding electronic control unit 50' connected to the electrohydraulic brake caliper 20 for electrically actuating said brake caliper 20 .

[0044] In more detail, the electrically actuat...

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PUM

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Abstract

The invention relates to a method for detecting malfunctions of an electro-actuated brake apparatus (100; 200) of a motor vehicle. The apparatus includes: an electronic control unit (50; 50'); an electro-actuated brake caliper (10; 20) electrically actuated by the electronic control unit for generating a clamping force (Fc) on a disc (15) of the brake apparatus in response to a control signal (Sp) generated by the electronic control unit. The method comprising the steps of: providing, in the electronic control unit, a functional control block (51) and a first functional block (60; 60') consisting of a numerical model representative of the electro- actuated brake caliper; providing a target signal (BT) 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 (S1; S1') 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 (Sf'; Spi') 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 (70) of the electronic control unit; performing, by said second functional block, an error validation check to provide information (R) on the operating state of the electro-actuated brake caliper to the electronic control unit.

Description

technical field [0001] The invention relates to a method for detecting failure of an electrically actuated brake system of a motor vehicle. In particular, the present invention relates to a method for detecting failure of an electromechanical or electrohydraulic brake of a motor vehicle in the event of rapid changes in braking request over time. Background technique [0002] The braking system is an important piece of equipment for motor vehicles both in terms of safety and performance. It is important to be able to obtain the best possible braking capability in a vehicle or motor vehicle in terms of stopping time and space as well as comfort and safety. In this regard, there has recently been a need to develop electrically actuated brakes for vehicles. The name for this type of technology is brake-by-wire (BBW). [0003] Today, there is a particular need to monitor the correct operation of electrically actuated braking devices of motor vehicles. Such monitoring does all...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T17/22B60T13/74
CPCB60T7/042B60T7/045B60T7/085B60T7/107B60T8/885B60T13/741B60T17/221B60T2270/406B60T8/171B60T13/745B60T2250/04B60T2270/88F16D66/00F16D2066/001F16D2066/003F16D2066/005
Inventor 萨穆埃莱·马佐莱尼马西莫·迪·斯特凡诺亚历山德罗·罗西卢卡·卡佩莱蒂
Owner FRENI BREMBO SPA
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