Method and system for preventing insufficient voltage of low-voltage battery after new energy vehicle is parked
A new energy vehicle, low-voltage battery technology, applied in battery circuit devices, vehicle components, current collectors, etc., can solve the problems of battery power loss and inability to start, and achieve the effect of reducing energy consumption and prolonging service life
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[0025] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0026] Such as image 3 The schematic diagram of a low-voltage battery loss prevention system after a new energy vehicle is parked is shown, including a voltage monitoring module 1, a BMS battery management system 2, a DCDC voltage conversion module 3, a low-voltage battery 4, and a main-negative relay 5; The busbar is connected to the charging circuit of the low-voltage battery 4 through the DC voltage conversion module 3; the positive charging circuit of the low-voltage battery 4 is connected in series with a main negative relay 5, and the main negative relay 5 is controlled and connected by the power management system 2 ; The power management system 2 is connected to the DC voltage conversion module 3 through a CAN network.
[0027] Such as figure 1 The working flow diagram of the shown voltage monitoring module 1, its working process includes:
[0028]...
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