求翻译：电子控制自动变速器能实现自动变速的前提是制定了确定的换挡规律，当车辆在行驶过程中达到预先确定的换挡条件时就会按照换挡规律实现自动换挡。是什么意思？

Electronically controlled automatic transmission automatic transmission to achieve the prerequisite is to develop a defined shift schedule, when the vehicle is in motion the process to achieve a pre-determined conditions will shift automatically according to shift schedule shift.

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The electronic control automatic transmission could realize the self-shifting transmission premise to formulate definite shifted gears the rule, when the vehicles in the travel process achieved determined in advance shifted gears when the condition can defer to shifts gears the rule realization to s

Electronic-controlled automatic transmission was developed to determine the premise of realizing automatic transmission shift, when the vehicle in motion and during predetermined shifting condition is reached in accordance with the implementation of automatic shift shift.

Electronic-controlled automatic transmission was developed to determine the premise of realizing automatic transmission shift, when the vehicle in motion and during predetermined shifting condition is reached in accordance with the implementation of automatic shift shift.