Management method, device and electronic equipment of a vehicle power supply system
A technology of a power supply system and a management method, which is applied in the field of vehicle power system management methods, devices, and electronic equipment, and can solve problems affecting battery life, battery discharge, and overcharging, so as to improve system reliability, increase service life, and reduce battery life. load effect
Active Publication Date: 2022-05-20
WUHAN LOTUS CARS CO LTD
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Problems solved by technology
[0004] The current multi-voltage platforms cannot work in harmony, and it is easy to appear that when the main DCDC has not fully entered the output state, the 48V DCDC will start to work, and the energy converted from the 12V battery to the 48V load will affect the battery life; or each DCDC during charging and smart charging. The timing of starting or ending work is not coordinated, resulting in battery discharge or overcharging, which affects battery life; in addition, if the DCDC voltage output target value is not coordinated, functions such as 48VDCDC reverse energy transmission cannot be realized
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[0060] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0061] It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances such that the embodiments of the invention described herein can be practiced in sequences other than those illustrate...
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The invention discloses a management method, device and electronic equipment for a vehicle power supply system. The power supply system includes a first battery, a second battery, a first voltage converter and a second voltage converter; the method includes: acquiring the state of charge and state of use of the vehicle; determine whether the state of charge of the vehicle and the state of use of the vehicle meet the first preset condition; if so, start the first voltage converter; obtain the voltage output value of the low-voltage terminal of the first voltage The current state of the second battery and the data of the first battery; when the voltage output value of the low voltage terminal of the first voltage converter is not less than the preset first threshold, the second voltage converter is activated, and the second voltage converter is controlled according to the second battery The current state or the current state of the second battery and the data of the first battery are used to charge the second battery; when the invention charges the battery, the energy converted by the second voltage converter is derived from the first voltage converter, thereby improving the service life.
Description
technical field [0001] The present invention relates to the technical field of vehicle power supply system, in particular to a management method, device and electronic equipment of the vehicle power supply system. Background technique [0002] With the development and publicity of the intelligent driving system and the increase in user expectations for this system and the deepening of the electrification of the vehicle, the vehicle often needs to consider not only providing backup power for the intelligent driving system, but also considering providing energy for special loads. Such as 48V load, so more and more power supply systems involving multi-voltage platforms for vehicles, especially electric vehicles, PHEV or HEV vehicles, may have three voltage platforms at the same time, namely high voltage, 48V and 12V, of which 48V and 12V voltage The platform will involve three low-voltage batteries; therefore, a complex management system is required for coordination between mul...
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IPC IPC(8): B60L1/00B60L3/00B60R16/033
CPCB60L1/00B60L3/00B60R16/033B60L2210/10Y02T10/7072
Inventor 韩玉涛杜蓬谭洋刘铁山苗诗雨
Owner WUHAN LOTUS CARS CO LTD