This disclosure provides a reducer (100), an electric vehicle drive system, and a control method for the electric vehicle drive system. In the reducer (100), a first countershaft (2a) is transmittingly connected to a first input shaft (1a), a second countershaft (2b) is transmittingly connected to a second input shaft (1b), and a centralized driving piece (5) is transmittingly connected to a power input end of a differential apparatus (4). A first transmission assembly (X1) and a second transmission assembly (X2) are respectively configured to connect or disconnect power transmission between the first countershaft (2a) and the centralized driving piece (5) and connect or disconnect transmission assembly power transmission between the second countershaft (2b) and the centralized driving piece (5). A first output shaft (3a) and a second output shaft (3b) are transmittingly connected to two power output ends of the differential apparatus (4) respectively.
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机译：本公开提供了减速器（ 100 ），电动车辆驱动系统以及用于该电动车辆驱动系统的控制方法。在减速器（ 100 ）中，第一副轴（ 2 a ）与第一输入轴（ 1 a ），第二副轴（ 2 b ）传动连接到第二输入轴（ 1 b ），并且集中驱动件（ 5 ）与差动装置（ 4 ）的动力输入端传动连接。第一传动组件（X 1 ）和第二传动组件（X 2 ）分别配置为连接或断开第一副轴（ 2 < / B> a ）和集中驱动件（ 5 ）并连接或断开第二副轴（ 2 b ）和集中驱动件（ 5 ）。第一输出轴（ 3 a ）和第二输出轴（ 3 b ）传动连接到两个差分设备的电源输出端（ 4 ）。
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