Insulation monitoring device and method for electric vehicle

An insulation monitoring device, electric vehicle technology, applied in the direction of testing the dielectric strength, etc., can solve the problems of personal safety accidents, vehicle accidents, device damage, etc., and achieve the effect of ensuring safety

Inactive Publication Date: 2012-09-26
JIANGSU AOXIN NEW ENERGY AUTOMOBILE
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  • Abstract
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Problems solved by technology

It means that two of the two circuits are electrically connected, for example, node A is electrically connected to node A', and node B is electrically connected to node B'. The device of 220 produces a voltage drop, which will cause damage to the device in the low-voltage circuit or an accident in the vehicle. For example, if it forms a circuit with the human body, personal safety accidents may occur. Carry out insulation monitoring

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  • Insulation monitoring device and method for electric vehicle
  • Insulation monitoring device and method for electric vehicle
  • Insulation monitoring device and method for electric vehicle

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[0033] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. Words related to electrical connection such as "connected", "connected to" and "connected to" herein may indicate direct or indirect electrical connection.

[0034] Reference herein to "one embodiment" or "an embodiment" refers to a particular feature, structure or characteristic that can be included in at least one implementation of the present invention. "In one embodiment" appearing in different places in this specification does not all refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

[0035] The invention provides an insulation monitoring device for an electric vehicle. By setting an insulation monitoring module in the electric vehicle, the insulation ...

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Abstract

The invention provides an insulation monitoring device for an electric vehicle, which includes an electric vehicle power system and an insulation monitoring module, wherein the insulation monitoring module includes a first resistor, a second resistor, a first detection control port, a second detection control port, a first diode, a second diode, a first detection power supply and a second detection power supply. Two insulation detection points are arranged in a return circuit of the electric vehicle power system, and the insulation monitoring module is used for detecting the insulating resistance between the insulation detection points and the vehicle body, thereby confirming the insulation condition of a power high-voltage system, and further guaranteeing the security of the system.

Description

【Technical field】 [0001] The invention relates to the field of insulation monitoring, in particular to an insulation monitoring device and method for electric vehicles. 【Background technique】 [0002] The degree of harm of electric shock to the human body mainly depends on the magnitude of the current passing through the human body and the length of the electrification time. Our country stipulates that the grades of safe voltage ratings are 42 volts, 36 volts, 24 volts, 12 volts, and 6 volts. The industry stipulates that the safe voltage is 36 volts and the safe current is 10mA. When the voltage used by electrical equipment exceeds the safe voltage, protective measures must be taken to prevent direct contact with the charged body in accordance with the regulations. [0003] As an energy-saving and environment-friendly means of transportation, electric vehicles have made great progress in this century. Since the driving voltage of the power part used by electric vehicles is...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/12
Inventor 丁元章袁锋
Owner JIANGSU AOXIN NEW ENERGY AUTOMOBILE
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