Fault processing system and method of vehicle-mounted power source

A fault handling method and vehicle power supply technology, which is applied in power supply testing and other directions, can solve problems such as the difficulty in locating vehicle power supply faults, and achieve the effect of convenient fault location

Inactive Publication Date: 2017-04-19
SHENZHEN INOVANCE TECH
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a vehicle power supply fault handling system and method for assisting fault location in view of the above-mentioned problem of difficult fault location of the vehicle power supply

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  • Fault processing system and method of vehicle-mounted power source
  • Fault processing system and method of vehicle-mounted power source
  • Fault processing system and method of vehicle-mounted power source

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Embodiment Construction

[0022] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0023] Such as figure 1 As shown, it is a schematic diagram of an embodiment of the vehicle power supply failure processing system of the present invention. The above-mentioned vehicle power supply includes a control module 10 and a power storage module (such as a capacitor, a storage battery, a voltage conversion circuit whose input end is connected to an electric vehicle power battery, etc.), and the above-mentioned control The module 10 can be an independent circuit board, or a circuit board shared with other modules in the vehicle control system. The on-vehicle power failure processing system ...

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Abstract

The invention provides a fault processing system and method of a vehicle-mounted power source. The vehicle-mounted power source comprises a control module and a power storage module. The system is characterized by comprising a sampling unit, a buffer memory unit, a trigger unit and a nonvolatile memory positioned in the control module, wherein the sampling unit samples state data of the vehicle-mounted power source in real time when the vehicle-mounted power source starts working; the buffer memory unit caches the state data sampled by the sampling unit in real time; and when the state data sampled by the sampling unit exceeds a set threshold, the trigger unit writes the cached state data in the nonvolatile memory. According to the system and method, the state data is cached in real time, and stored in the nonvolatile memory when the state data is abnormal, related information when the vehicle-mounted power source has the fault can be recorded effectively, and the fault of the vehicle-mounted power source can be located conveniently.

Description

technical field [0001] The present invention relates to the field of vehicle-mounted power supplies of electric vehicles, and more specifically, relates to a vehicle-mounted power supply failure processing system and method. Background technique [0002] In the current global oil energy shortage and severe environmental pollution, pure electric vehicles have become the key development direction of the automotive industry in the world due to their advantages of energy saving, low environmental pollution, low noise, simple structure, easy control, and easy maintenance. . [0003] In the above-mentioned electric vehicles, the on-board power supply is required to provide auxiliary power supply for the vehicle control system, so as to ensure the reliable operation of the system. At present, the power electronic control system of the vehicle power supply is mainly controlled by hardware analog circuits. When the vehicle power supply fails, it is difficult to locate the fault. C...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/40
CPCG01R31/40
Inventor 罗梅林
Owner SHENZHEN INOVANCE TECH
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