Double power sources switching control system of electric car
A dual power conversion and control system technology, applied in the field of vehicle engineering, can solve problems such as inconvenience to consumers, increased chassis stress, and difficulty in braking
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[0014] Such as figure 1 As shown, an embodiment of the present invention includes a battery pack A, a battery pack B, a relay KM1, a relay KM2, a DC switching power supply, a voltage sampling circuit, a voltage comparator, an automatic battery switching circuit, and a power display device. The battery pack A It is connected in parallel with the battery pack B, and the positive poles of the battery pack A and the battery pack B are respectively connected in series with the normally open contacts of the relay KM1 and the relay KM2, and then connected in series with the electrical equipment of the electric vehicle; the DC switching power supply The input terminals are directly connected to the positive and negative poles of battery pack A and battery pack B, and the output terminals are respectively connected to a voltage comparator, a voltage sampling circuit, a battery automatic switching circuit and a power display device; the sampling terminal of the voltage sampling circuit i...
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