An integrated-electro-hydraulic brake system (I-EHB) is presented to fulfill the requirements of active safety. Because I-EHB can control the brake pressure accurately and fast. Furthermore I-EHB is a decoupled system, so it could make the maximum regenerative braking while offers the same brake pedal feeling and also good for ADAS and unmanned driving application. Based on the analysis of current electrohydraulic brake systems, regulation requirements and the requirements for brake system, the operating mode requirements of I-EHB are formed. Furthermore, system topological structure and a conceptual design are proposed. After the selection of key components, the parameter design is accomplished by modeling the system. According to the above-mentioned design method, an I-EHB prototype and test rig is made. Through the test rig, characteristics of the system are tested. Results show that this I-EHB system responded rapidly. Upon the experimental results, increasing pressure response time (T90) of I-EHB is 53% shorter than that of conventional brake system and reducing pressure response time (T10) of I-EHB is 70% shorter than that of conventional brake system. The tracking performance of I-EHB is accurate enough. The RMS (root mean square) of tracking error are 1.99 bar and 1.43 bar according to different aim signals. The experimental results proved that I-EHB fulfills the requirements of active safety.


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    Title :

    An Integrated-Electro-Hydraulic Brake System for Active Safety


    Additional title:

    Sae Technical Papers


    Contributors:
    Xiong, Lu (author) / Xu, Songyun (author) / Han, Wei (author) / Yu, Zhuoping (author)

    Conference:

    SAE 2016 World Congress and Exhibition ; 2016



    Publication date :

    2016-04-05




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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