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Monitoring method and device with early warning for power supply on vehicle

A technology for monitoring, early warning and power supply. It is applied to electrical devices, electric vehicles, vehicle components, etc., and can solve problems such as insufficient battery power and battery consumption.

Inactive Publication Date: 2004-04-21
黄永松
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Now, when people use a vehicle, they need to supply enough starting electric energy through the battery to make the starter motor run and start the vehicle; Only when it is not going well, will you know that the battery power is insufficient, or although you can still start the motor smoothly this time, when you start it next time, the battery has already been exhausted

Method used

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  • Monitoring method and device with early warning for power supply on vehicle
  • Monitoring method and device with early warning for power supply on vehicle
  • Monitoring method and device with early warning for power supply on vehicle

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Embodiment Construction

[0033] Such as Figure 1 to Figure 7 As shown, in a preferred embodiment, the method of the present invention connects a monitoring and early warning device 20 in parallel with the battery to be tested B2 and the starting device (represented by the starter motor in the following description) S1, and utilizes the starter motor in a single-circuit manner. As a load, S1 constitutes an external loop sampling circuit, and takes 1 / t second as the sampling time to measure the sampling voltage value instantaneously, and draws the voltage curve at intervals, and compares the lowest voltage value on the voltage curve with the system setting Compared with the predetermined warning value, the battery status can be judged, and a timely warning display can be provided.

[0034] Such as figure 1 Shown is a block diagram of the steps of the method of the present invention; wherein, it can be known that the monitoring and early warning method includes the following steps:

[0035] Step 1 is...

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Abstract

A method and device for monitoring and prewarning the power supply system of vehicle feature that a monitoring and prewarning device is parallelly connected with the battery unit to be tested and the start motor used as load to form an external loop type sampling circuit. The voltage is sampled at intervals to form a voltage curve. The lowest value of said start voltage curve is compared with a predefined threshold to determine that if the battery unit can provide sufficient start current. If it can not, a prewarning signal is provided.

Description

technical field [0001] The invention relates to a monitoring and early warning method and device for a vehicle power supply. Background technique [0002] Now, when people use a vehicle, they need to supply enough starting electric energy through the battery to make the starter motor run and start the vehicle; When it is not going well, it will be known that the power of the battery is insufficient, or although the motor can still be started smoothly this time, when it is restarted next time, the battery has already been consumed. [0003] Furthermore, the service life of a vehicle battery often depends on the ambient temperature, charging conditions, charging time, and load discharge. The relationship between "characteristics" and "storage characteristics" is as follows Figure 12 to Figure 14 As shown; therefore, under the influence of many factors, it is necessary to monitor the battery for a long time if you want to avoid the dilemma of being unable to start the vehicle...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L3/00
Inventor 黄永升
Owner 黄永松