Fault location detection method, fault location detection device, storage battery assembly and motor vehicle

A technology of fault location and detection method, applied in the direction of measuring device, measuring electricity, measuring electrical variables, etc., can solve the problem of life reduction, the specific location of the power failure failure cannot be detected, and the driver or maintenance personnel cannot know the power failure identification. and other problems to achieve the effect of reducing maintenance time and cost
CN106501711AActive Publication Date: 2017-03-15乐视生态汽车(浙江)有限公司
5 Cites 25 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
乐视生态汽车(浙江)有限公司
Publication Date
2017-03-15

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The embodiment of the invention provides a fault location detection method, a fault location detection device, a storage battery assembly and a motor vehicle. In the scheme, a set load is started and lasts for a first preset time after a power interruption failure is detected to occur in an on-off control module under a strong electricity disconnecting instruction, a terminal voltage variation value of the set load and a terminal voltage variation value of each battery string are acquired within the first preset time, and if the terminal voltage variation value of a certain battery string is consistent with the terminal voltage variation value of the set load, a contact switch corresponding to the battery string is determined to break down. Under the condition of not additionally increasing any sensor, the location of a sintering or adhesion fault and the like can be determined accurately and quickly by using an existing detection component in a motor vehicle power system, so that the maintenance time and the maintenance cost are greatly reduced.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the field of storage battery technology, in particular to a fault location detection method, a fault location detection device, a storage battery assembly and a motor vehicle. Background technique

[0002] Such as figure 1 Shown is a structural schematic diagram of the power system of an electric vehicle, the battery body 100 includes at least one battery string 1001 and a switch control module 1002 . In the figure, three battery strings 1001 are taken as an example, each battery string 1001 has an independent contact switch 1003 , and three groups of contact switches 1003 together constitute a switch control module 1002 . When the three sets of contact switches 1003 are all closed, each battery string 1001 provides power to the drive motor 104, hardware load (high-voltage accessories) 105, etc. through the bus circuit. When VMS101 (Vehicle Management System, vehicle management system) performs power-off operation on the batt...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More