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Power battery monitoring method in whole vehicle standing state

A power battery and vehicle static technology, applied in the field of battery management system development, can solve problems such as cost increase, achieve the effects of reducing low-voltage power consumption, shortening sleep time, and ensuring timeliness

Pending Publication Date: 2022-01-14
深蓝汽车科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These solutions all need to put forward relatively high requirements on the battery management system or the vehicle power system, and the cost will increase accordingly

Method used

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  • Power battery monitoring method in whole vehicle standing state

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Embodiment Construction

[0019] Such as figure 1 As shown, the power battery monitoring method in the static state of the whole vehicle in this embodiment includes:

[0020] Step 1: When the vehicle is stationary and starts to sleep, the battery management system (ie, BMS) records the current power battery status information, determines the sleep time, and sends the sleep timing request and sleep time to the Internet of Vehicles system (ie, T-BOX) , and then sleep, and then perform the second step. Wherein, the state information of the power battery includes the voltage of each single battery, the temperature of each single battery and the insulation resistance of the power battery.

[0021] Step 2: After receiving the dormancy timing request and the dormancy time, the Internet of Vehicles system sets the timing wake-up time according to the dormancy time and starts timing. When the timing reaches the timing wake-up time, the Internet of Vehicles system wakes up the vehicle control system, and the ve...

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Abstract

The invention discloses a power battery monitoring method in a whole vehicle standing state, the method comprises the following steps: through interactive setting of a battery management system and an Internet of Vehicles system, the Internet of Vehicles system can wake up the whole vehicle control system when timing reaches a timed wake-up time, and further wake up the battery management system to monitor the power battery for one time; and the next dormancy time is set by the battery management system according to the state information of the power battery after awakening and before dormancy, so that the state of the power battery is monitored more reasonably. When the state of the power battery is abnormal and needs to be observed emphatically, the next dormancy time is shortened, and the timeliness of monitoring is ensured; when the state of the power battery is not abnormal and does not need to be observed emphatically, the timed wake-up frequency can be reduced by prolonging the next sleep time, so that the low-voltage power consumption of the whole vehicle system is reduced.

Description

technical field [0001] The invention belongs to the field of battery management system development of new energy vehicles, and in particular relates to a power battery monitoring method in a static state of the whole vehicle. Background technique [0002] Power batteries in new energy vehicles, especially lithium-ion batteries, have always been the object of close monitoring in the entire power system because their state is not absolutely stable and have certain characteristics of thermal runaway risk. How to design a battery management system that can monitor the status of power batteries in real time has become an urgent problem for developers to solve. In addition, as big data empowers various fields today, cloud monitoring of power batteries has become a classic scenario for big data applications. A large number of power batteries operating in the market upload real-time monitoring data to cloud servers, and analyze these massive data through cloud algorithms to monitor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L58/10B60L58/24B60L3/00
CPCB60L58/10B60L58/24B60L3/0046Y02T10/70
Inventor 赵洪杨陈坡杨辉前牟丽莎邓承浩
Owner 深蓝汽车科技有限公司
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