The invention relates to an automobile electronic technology, in particular to a power supply management method in an automobile starting process, and an automobile power supply system realizing the method. The automobile power supply system disclosed by the embodiment of the invention comprises a generator, an accumulator, a DC-DC convertor and a controller, wherein the accumulator is connected with automobile electric equipment through the DC-DC convertor; the controller controls the operation of the generator and the DC-DC convertor, wherein the controller controls the starting process of an automobile according to the following manner: adjusting the duty ratio of the DC-DC convertor so as to control the declining degree of the working voltage of the automobile electric equipment to a preset level, wherein the preset level depends on a starting current provided for an automobile starter by the accumulator, the current working current of the automobile electric equipment and the electrical charge state of the accumulator.
Power supply management method in automobile starting process, and automobile power supply system
2015-04-15
Patent
Electronic Resource
English
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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