Abstract

A procedure for choosing the optimal gear ratio for a reducing gear train is proposed for the traction electric drive of the workshop electric automobile based on the GAZ A22R22/32 chassis and its modified versions, taking into account the requirements for the top linear speed of the automobile, acceleration, and power plant energy efficiency that will allow achieving a required reserve. The optimization procedure consists of three phases. In phase one, the traction electric drive’s top speed was achieved. Then, the time was minimized for which the electric drive reached the rated speed. In phase two, the gear ratio was adjusted proceeding from the conditions in which the drive was used in the field attenuation zone. Taking into account the system’s operation in the attenuation mode against the loss minimization criteria, the procedure of selecting the gear ratio allowed reaching a cruising range of 200 km and the traction electric drive’s acceleration to the rated speed in 9 s. A charge control system is proposed that allows making the battery work stably in operational and charge modes. It is confirmed by experiment that, at a cell imbalance of no more than 3%, the full balancing takes only up to 4 min.

中文翻译：

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Gazelle-Next中型货车的牵引电驱动的新工程解决方案

摘要

提出了一种基于GAZ A22R22 / 32底盘及其改进版本的车间电动汽车的牵引电驱动选择最佳齿轮比的程序，并考虑了最大直线速度的要求。汽车，加速器和发电厂的能源效率，这将有助于实现所需的储备。优化过程包括三个阶段。在第一阶段，实现了牵引电驱动的最高速度。然后，将电驱动器达到额定速度的时间减至最少。在第二阶段中，从在磁场衰减区域中使用驱动器的条件开始调整齿轮比。考虑到针对损耗最小化准则的系统在衰减模式下的操作，齿轮比的选择过程使续航里程达到200 km，牵引电驱动在9 s内加速至额定速度。提出了一种充电控制系统，该系统可使电池在工作和充电模式下稳定工作。通过实验证实，在电池不平衡量不超过3％的情况下，完全平衡最多只需要4分钟。