The present invention relates to a propulsion system (102, 202) for a heavy vehicle (100, 200), such as a truck, bus or construction equipment vehicle. The propulsion system includes an electric machine (EM), such as an electric motor and a generator, and a control device (126, 226) including a processor (128, 228) and a memory (130, 230). Each of the EM is either in an EM electrically connected state in which power is transmitted between the power source and the wheel and EM torque is applied to the wheel of the vehicle, or in an EM electrically disconnected state in which no power is transmitted between the power source and the wheel. Further, each of the EM is associated with EM power loss characteristics of the EM electrical connection state and the EM electrical disconnection state, respectively. The EM power loss characteristic of the EM electrically disconnected state is related to inertia and/or frictional loss caused by the EM when the power source does not supply power to the EM. The control means are arranged to: define a cost function dependent on EM states of the EM, where each of the EM states comprises either the EM electrical connection state or the EM electrical disconnection state, where the cost function further comprises a motion request associated with an expected value of global force; minimizing a cost function over a search space comprising the EM state such that it is determined to minimize the EM state; and controlling the EM in accordance with the minimized EM state.

    本发明涉及一种用于重型车辆(100,200)诸如卡车、公共汽车或施工设备车辆的推进系统(102,202)。所述推进系统包括电机(EM),诸如电动马达和发电机,以及控制装置(126,226),所述控制装置包括处理器(128,228)和存储器(130,230)。所述EM中的每一个要么处于EM电连接状态,其中电力在电源和车轮之间传输并且EM扭矩施加到车辆的车轮,要么处于EM电断开状态,其中所述电源和所述车轮之间没有电力传输。此外,所述EM中的每一个分别与所述EM电连接状态和所述EM电断开状态的EM功率损耗特性相关联。所述EM电断开状态的所述EM功率损耗特性与当所述电源未向所述EM供应电力时所述EM引起的惯性和/或摩擦损耗有关。控制装置被布置为:定义取决于所述EM的EM状态的成本函数,其中所述EM状态中的每一个包括所述EM电连接状态或所述EM电断开状态,其中所述成本函数还包括与全局力的期望值相关联的运动请求;最小化包括所述EM状态的搜索空间上的成本函数,使得确定最小化EM状态;并且根据所述最小化EM状态来控制所述EM。


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    Title :

    Propulsion system for heavy vehicle, heavy vehicle and method for controlling propulsion system


    Additional title:

    重型车辆的推进系统、重型车辆和用于控制推进系统的方法


    Contributors:

    Publication date :

    2025-03-18


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / 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



    Heavy vehicle propulsion

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