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Vehicle low-voltage power supply voltage monitoring method and system, storage medium and vehicle

A low-voltage power supply and voltage monitoring technology, applied in vehicle components, circuits or fluid pipelines, transportation and packaging, etc., can solve problems such as inability to determine the remaining battery power, affecting the power-on start of the whole vehicle, and inability to know the battery voltage status. , to avoid failure to power on and start and improve user experience

Pending Publication Date: 2021-04-30
宝能(西安)汽车研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the 12V battery does not have the communication function, the voltage state of the battery cannot be known, and the remaining power of the battery itself cannot be determined, which easily affects the normal operation of the low-voltage power supply system of the vehicle, thereby affecting the power-on start of the vehicle

Method used

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  • Vehicle low-voltage power supply voltage monitoring method and system, storage medium and vehicle
  • Vehicle low-voltage power supply voltage monitoring method and system, storage medium and vehicle
  • Vehicle low-voltage power supply voltage monitoring method and system, storage medium and vehicle

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Embodiment Construction

[0028] 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.

[0029] The vehicle low-voltage power supply voltage monitoring method and system, storage medium, and vehicle according to the embodiments of the present invention will be described below with reference to the accompanying drawings.

[0030] figure 1 It is a flowchart of a vehicle low-voltage power supply voltage monitoring method according to an embodiment of the present invention.

[0031] like figure 1 As shown, the vehicle low-voltage power supply voltage monitoring method of the embodiment of the present invention includes...

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Abstract

The invention discloses a vehicle low-voltage power supply voltage monitoring method and system, a storage medium and a vehicle, and the method comprises the following steps that a vehicle controller carries out the self-inspection after the power-on awakening, controls the DC / DC power-on when there is no fault in the self-inspection, and transmits an awakening message to the DC / DC for awakening the DC / DC; the whole vehicle controller receives a self state message fed back after the DC / DC is awakened, executes a whole vehicle power-on time sequence when determining that the DC / DC has no fault according to the self state message, and controls the DC / DC to work after the whole vehicle is successfully powered on; and the whole vehicle controller monitors the power supply voltage of the whole vehicle controller to judge whether the low-voltage power supply voltage of the vehicle fails or not, if yes, the whole vehicle power-off time sequence is executed, and the vehicle instrument is controlled to send out failure prompt information. Therefore, the vehicle low-voltage power supply voltage monitoring method can accurately and effectively monitor the low-voltage power supply voltage of the vehicle, discover the fault of the vehicle low-voltage power supply voltage in time, avoid the phenomenon that the vehicle cannot be powered on and started, and improve the user experience.

Description

technical field [0001] The invention relates to the technical field of voltage monitoring, in particular to a vehicle low-voltage power supply voltage monitoring method, a computer-readable storage medium, a vehicle and a vehicle low-voltage power supply voltage monitoring system. Background technique [0002] With the promotion and popularization of new energy vehicles in my country, especially new energy extended-range vehicles have been greatly developed. At present, the low-voltage power supply of extended-range vehicles is mainly provided by 12V batteries. That is to say, before the high-voltage power-on is completed, the 12V battery uses its own remaining power to provide low-voltage power supply for the vehicle. After the high-voltage power-on is completed, the 12V battery is charged by DC (Direct Current) / DC, and then the 12V battery provides low voltage power supply. Since the 12V battery does not have a communication function, the voltage state of the battery cann...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60R16/023
CPCB60R16/0232
Inventor 桂祈祯任庆
Owner 宝能(西安)汽车研究院有限公司
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