Vehicle storage battery electric quantity monitoring system and vehicle thereof

Abstract

A vehicle storage battery electric quantity monitoring system comprises a monitoring device connected with a storage battery and an engine ECU, and the monitoring device is configured to read the rotating speed of an engine through the engine ECU when a vehicle is started, judge the state of the engine according to the rotating speed of the engine and read and record the voltage of the storage battery in real time; after the engine is in a starting success state, all voltages are extracted when the engine is in a starting state, and an average value of all the voltages is calculated; the voltage of the engine in the pre-starting state is extracted, and a voltage difference value is calculated, wherein the voltage difference value is equal to the average value of the voltage of the engine in the pre-starting state; and the electric quantity of the storage battery is judged according to the voltage difference value. According to the invention, the current electric quantity of the storagebattery can be judged in time when the vehicle is started without checking when the battery is used abnormally, so a driver can be prompted and warned correspondingly in time according to the electric quantity condition.

Description

technical field [0001] The invention belongs to the technical field of battery protection, and in particular relates to a vehicle battery power monitoring system and a vehicle thereof. Background technique [0002] Batteries are widely used in cars. With the development of technology, there are more and more devices on cars, and the power of car batteries is limited. The more on-board equipment is used, the faster the power consumption of batteries will be. Therefore, the battery Power consumption is inevitable. When the car battery in use is difficult to start the engine, it means that the power of the battery is insufficient. It needs to be charged and checked whether the power of the battery is normal. If the power is lower than the usable limit value, the battery needs to be repaired or replaced. Therefore, to know the power of the battery, it is the key to detect the power of the battery. [0003] At present, there are mainly three ways to detect the battery power, am...

AI Technical Summary

Problems solved by technology

However, none of the above detection methods can be used for measurement while the vehicle is running. Instead, it is necessary to wait until the vehicle is in a non-running state after the battery is found to be abnormal during use. This method cannot be known while the vehicle is running. The power of the battery, and then make corresponding prompts for the driver

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