The invention belongs to the technical field of automobile economical efficiency calculation, particularly relates to a working condition method endurance calculation method for a pure electric automobile, and solves the problems that in the prior art, the electric quantity of a power battery is not enough or the electric quantity of the power battery is too large according to the driving range obtained through simulation calculation in a traditional method for selecting the electric quantity of the battery. The method comprises the following steps: calculating consumed electric quantity and brake recovery electric quantity of a working condition method at each moment; calculating the consumed electric quantity and the braking recovery electric quantity of each circulation working condition; and considering the discharge depth and the discharge efficiency of the battery, and calculating the cycle index of the working condition method so as to obtain the driving range. By calculating the energy consumption of the working condition method at each moment and considering factors such as accessory loss and transmission efficiency of the automobile, the working condition method driving range of the electric automobile is accurately calculated, and the method has important guiding significance on battery type selection and the like in the earlier stage of design of the electric automobile.
本发明属于汽车经济性计算技术领域,尤其是一种纯电动汽车工况法续航计算方法,解决了现有技术中传统方法仿真计算所得的续驶里程去选型电池电量,要么是动力电池电量不够,要么是动力电池电量估算余量太大等问题,所述方法包括:计算工况法每一时刻的消耗电量及制动回收电量;计算每个循环工况的消耗电量及制动回收电量;考虑电池的放电深度和放电效率,计算工况法的循环次数进而得到续驶里程。本发明通过计算工况法每一时刻的能耗,考虑汽车的附件损耗、传动效率等因素,精确计算得出了电动汽车的工况法续驶里程,对于电动汽车设计前期的电池选型等具有重要的指导意义。
Working condition method endurance calculation method for pure electric automobile
一种纯电动汽车工况法续航计算方法
2021-11-16
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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