Voltage regulation method and device for DC-to-DC converter (DCDC) and vehicle
A DC converter and voltage adjustment technology, applied in circuit devices, battery circuit devices, electric vehicles, etc., can solve the problems of damaging low-voltage batteries, reducing the service life of low-voltage batteries, and increasing power consumption of electric vehicles, so as to prolong the service life, Effect of improving charging efficiency
Inactive Publication Date: 2019-03-08
BEIJING ELECTRIC VEHICLE
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Problems solved by technology
[0002] With the development of electric vehicle technology, people are paying more and more attention to the intelligence and fun of driving electric vehicles. Various devices are equipped on electric vehicles to meet the needs of users, which leads to increased power consumption of electric vehicles and the need for low-voltage batteries. frequent charging
[0003] In the related technology, generally, the high-voltage electricity is converted into a constant low-voltage electricity to charge the low-voltage battery through a DC-to-DC converter (DCDC for short). In this method, due to the constant output voltage of the DCDC, in some Under the circumstances, the low-voltage battery will be damaged and the service life of the low-voltage battery will be reduced.
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[0040] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.
[0041]The DCDC voltage adjustment method of the embodiment of the present invention is mainly aimed at related technologies. When DCDC converts high-voltage electricity into low-voltage electricity to charge low-voltage batteries, due to the constant output voltage of DCDC, it may be damaged in some cases. Technical problems with low-voltage batteries. For example, when the remaining power of the low-voltage battery is seriously insufficient, charging the low-voltage battery with a constant voltage set under normal conditions wil...
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The invention provides a voltage regulation method and device for a DC-to-DC converter (DCDC), a vehicle, equipment and a medium. The method comprises the following steps: controlling DCDC enabling, and acquiring first information of the current temperature of a low-voltage storage battery in the DCDC enabling process; acquiring second information of the current remaining electric quantity SOC ofthe low-voltage storage battery; and regulating the output voltage of the DCDC according to the first information and the second information. Thereby, according to the method, the output voltage of the DCDC can be regulated in real time according to the current temperature and the remaining electric quantity of the storage battery, the output voltage of the DCDC can meet the charging requirementsof the storage battery in different scenes, the efficiency of charging the storage battery can be improved, and the service life of the storage battery can be prolonged.
Description
technical field [0001] The present invention relates to the technical field of vehicle manufacturing, in particular to a DCDC voltage adjustment method, device, vehicle, equipment and medium. Background technique [0002] With the development of electric vehicle technology, people are paying more and more attention to the intelligence and fun of driving electric vehicles. Various devices are equipped on electric vehicles to meet the needs of users, which leads to increased power consumption of electric vehicles and the need for low-voltage batteries. Frequent charging. [0003] In the related technology, generally, the high-voltage electricity is converted into a constant low-voltage electricity to charge the low-voltage battery through a DC-to-DC converter (DCDC for short). In this method, due to the constant output voltage of the DCDC, in some Otherwise, the low-voltage battery will be damaged and the service life of the low-voltage battery will be reduced. Contents of ...
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IPC IPC(8): H02J7/00
CPCH02J7/0077H02J7/0091H02J2207/20
Inventor 万继云
Owner BEIJING ELECTRIC VEHICLE