Vehicle battery power monitoring system and its vehicle

A power monitoring and battery technology, applied in the direction of control devices, etc., can solve the problems of knowing the battery power, inability to measure, etc., and achieve the effect of reducing failure to start and preventing power loss

Active Publication Date: 2021-12-31
SHANGHAI XINGRONG AUTOMOBILE TECH CO LTD
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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

Method used

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  • Vehicle battery power monitoring system and its vehicle
  • Vehicle battery power monitoring system and its vehicle
  • Vehicle battery power monitoring system and its vehicle

Examples

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Embodiment Construction

[0061] Such as figure 1 As shown, a vehicle battery power monitoring system includes a monitoring device 110 connected to the battery 2 and the engine ECU3, and the monitoring device 110 is configured as:

[0062]1. When the vehicle starts, the engine speed is read by the engine ECU, and the state of the engine is judged according to the engine speed: the state before starting, the state during starting and the state of successful start, and the voltage of the battery is read and recorded in real time.

[0063] 2. When the engine is successfully started, extract all voltages when the engine is starting, and calculate the average value for all voltages. Since the voltage read from the battery is fluctuating data, it needs to be corrected by calculating the average value.

[0064] 3. Extract the voltage when the engine is in the state before starting, and calculate the voltage difference: voltage difference=voltage when the engine is in the state before starting-the above averag...

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Abstract

A vehicle battery power monitoring system, comprising a monitoring device connected to a battery and an engine ECU, the monitoring device is configured to: when the vehicle is started, the engine speed is read through the engine ECU, and the engine is judged according to the engine speed. state, and read and record the voltage of the battery in real time; when the engine is in the successful start state, extract all the voltages when the engine is in the starting state, and calculate the average value of all the voltages; extract the The voltage when the engine is in the pre-start state, and the voltage difference is calculated: the voltage difference = the voltage when the engine is in the pre-start state—the average value; the battery power is judged according to the voltage difference. The present invention can timely determine the current power of the battery when the vehicle is started, and does not need to wait until the battery is used abnormally to check, so that corresponding prompts and warnings can be made to the driver according to the power situation in time.

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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60W40/00B60W50/00
CPCB60W40/00B60W50/00B60W2050/0043B60W2510/0638B60W2510/244
Inventor 陈一平何家明
Owner SHANGHAI XINGRONG AUTOMOBILE TECH CO LTD
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