A composite system brake control strategy based on a stepless speed change type flywheel and a power battery belongs to the field of electric vehicle control. The composite system brake control strategy is characterized in that a composite energy system can be controlled to operate in various brake modes according to the states of a vehicle, the power battery and the stepless speed change type flywheel. Under the working condition of high braking strength, due to the fact that the power density of the power battery is low, in order to guarantee the safety and the service life of the power battery, the power battery cannot participate in feedback of regenerative braking energy, the vehicle preferentially operates in a flywheel regenerative braking mode, and the insufficient braking power is made up by mechanical braking. Under the working condition of medium and low braking strength, the vehicle preferentially operates in a flywheel regenerative braking mode, insufficient braking power is performed by the power battery, and if the sum of the maximum allowable braking power of the flywheel and the maximum allowable braking power of the power battery is smaller than the braking power required by the vehicle, the flywheel and the power battery both operate according to the maximum allowable braking power, and the insufficient braking power is supplemented by mechanical braking.

    一种基于无级变速式飞轮与动力电池的复合系统制动控制策略属于电动汽车控制领域,其特征在于能够依据车辆、动力电池和基于无级变速式飞轮的状态,控制复合能源系统运行于多种制动模式。高制动强度工况下,由于动力电池功率密度较低,为了保证动力电池的安全性与使用寿命,动力电池将不能参与再生制动能量的回馈,车辆优先运行于飞轮再生制动模式,不足的制动功率由机械制动弥补。中低制动强度工况下,车辆优先运行于飞轮再生制动模式,不足的制动功率由动力电池弥,若飞轮最大允许制动功率与动力电池最大允许制动功率之和小于车辆需求制动功率,则飞轮与动力电池均按最大允许制动功率运行,不足的制动功率由机械制动补充。


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    Titel :

    Composite system brake control strategy based on stepless speed change type flywheel and power battery


    Weitere Titelangaben:

    一种基于无级变速式飞轮与动力电池的复合系统制动控制策略


    Beteiligte:
    SUN BINBIN (Autor:in) / HU ZIHAO (Autor:in) / LI WENTAO (Autor:in) / ZHANG TIEZHU (Autor:in) / TAN CAO (Autor:in)

    Erscheinungsdatum :

    25.06.2021


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion



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