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Lithium battery getting-on judgment method, storage medium and judgment device

A technology for judging devices and lithium batteries, applied in battery circuit devices, circuit devices, measuring devices, etc., can solve problems such as increased cost and complexity, and achieve the effects of eliminating the influence of temperature drift, good convenience, and high judgment reliability.

Active Publication Date: 2022-08-09
JIANGSU RICHPOWER NEW ENERGY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the method of adding external detection signals is mostly used to detect whether it is on the vehicle, and the corresponding connectors, wiring harnesses, etc. must be adjusted accordingly, which increases the cost and complexity, such as figure 1 K1, K2 signal shown

Method used

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  • Lithium battery getting-on judgment method, storage medium and judgment device
  • Lithium battery getting-on judgment method, storage medium and judgment device
  • Lithium battery getting-on judgment method, storage medium and judgment device

Examples

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Embodiment 1

[0033] This embodiment provides a method for judging whether a lithium battery is on a vehicle, and the method indirectly obtains a judgment result of whether the lithium battery is connected and started normally by judging whether there is a load. This method is a judging method that cannot reliably identify whether the battery is still in the vehicle when the current is small. Since the battery is only connected to the vehicle with positive and negative poles, there are no other detection circuits; if the vehicle is in a stationary state for a long time (such as the driver eating, sleeping at night, etc.), and the driver removes the battery from the vehicle after the vehicle has been stationary for a long time If the battery is taken out, it will not be possible to determine whether the battery is in the car or placed in other places other than the vehicle. Therefore, the present invention introduces this method for identification. After this method is added, it can be accura...

Embodiment 2

[0050] like image 3 As shown in the figure, this embodiment provides a lithium battery on-board determination device, which is connected to the lithium battery and includes a P-line voltage detection circuit, an internal load circuit and an MCU, and the MCU is respectively connected to the P-line voltage detection circuit and the internal load The P-line voltage detection circuit is connected to the negative electrode of the lithium battery (the negative electrode of the load terminal), and the internal load circuit is connected to both ends of the lithium battery. The MCU collects the discharge current and judges whether the discharge current is greater than the set threshold. If so, it outputs a first judgment result. The first judgment result is that the lithium battery is normally loaded into the vehicle. If not, a trigger signal is generated based on the trigger signal. , control the discharge MOS to disconnect, judge whether there is voltage through the P-line voltage d...

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Abstract

The invention relates to a lithium battery getting-on judgment method, a storage medium and a judgment device, and the judgment method comprises the following steps: collecting a discharge current, judging whether the discharge current is greater than a set threshold value or not, if yes, outputting a first judgment result which indicates that the lithium battery gets on the vehicle normally, and if not, generating a trigger signal; based on the trigger signal, the discharge MOS is controlled to be disconnected, a first signal is obtained, whether the first signal is an invalid signal is judged, if yes, a second signal is generated, the second signal is used for conducting an internal load, and if not, a first judgment result is output; updating the first signal, judging whether the current first signal is an effective signal or not, if so, outputting a second judgment result which is that the lithium battery is not loaded, and if not, outputting the first judgment result; and the discharge MOS is controlled to be closed. Compared with the prior art, the method has the advantages of convenience, reliability and the like.

Description

technical field [0001] The present invention relates to the technical field of lithium batteries, and in particular, to a method, a storage medium and a judging device for judging that a lithium battery is on board. Background technique [0002] If lead-acid batteries are improperly recycled in use, it will cause great pollution to the environment. At present, lithium batteries are often used instead of lead-acid batteries; electric bicycles and electric tricycles (hereinafter collectively referred to as electric vehicles) are the main objects for using lead-acid batteries. It is also the main object of lithium battery replacement. Compared with lead-acid batteries, lithium batteries have small internal resistance and high discharge rate. Due to the different battery performance, there are some problems in the application of lithium batteries: [0003] When the lithium battery pack is connected to the electric vehicle, the lithium battery will charge the motor starting capa...

Claims

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Application Information

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IPC IPC(8): H02J7/00G01R31/382G01R31/378
CPCH02J7/0048H02J7/00714H02J7/00712G01R31/382G01R31/378Y02T10/70
Inventor 何浩辉汪成谦
Owner JIANGSU RICHPOWER NEW ENERGY TECH
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