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Monitoring method and monitoring system for touch switch

A contact switch and the same technology are applied in the field of monitoring and systems for contact switches, which can solve the problems of correct judgment of disconnection and inability to close the contact switch normally, and achieve the effect of avoiding safety threats

Active Publication Date: 2010-06-02
BEIQI FOTON MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the current electric vehicle cannot make a correct judgment on whether the contact switch is normally closed or disconnected, and propose a safe and reliable monitoring method and system for the contact switch

Method used

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  • Monitoring method and monitoring system for touch switch
  • Monitoring method and monitoring system for touch switch
  • Monitoring method and monitoring system for touch switch

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Embodiment Construction

[0024] Specific embodiments will now be described in detail with reference to the accompanying drawings.

[0025] The invention is based on figure 1 The high-voltage power consumption system of the electric vehicle shown provides a contact switch monitoring method. like figure 1 As shown, the electrical equipment 120 can be an electrical instrument that is connected to the high-voltage power system of an electric vehicle through an inverter, an electrical instrument that is connected to the high-voltage power system of an electric vehicle through a DC-DC / converter, or directly connected to the high-voltage power system of an electric vehicle. Electric equipment used in the high-voltage power system of electric vehicles, such as electric motors, electric air conditioners, etc., and on-board chargers, etc. Usually, in order to ensure the safety of the high-voltage power system of electric vehicles and prevent the instantaneous current from being too large when connected to the...

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PUM

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Abstract

The invention provides a monitoring method and a monitoring system for a touch switch. The monitoring method comprises the following steps of: (1) during switching on the touch switch or switching off the touch switch, respectively measuring voltages of two ends of the touch switch relative to the same reference electrical level; (2) comparing the voltages of the two ends of the touch switch relative to the same reference electrical level; and (3) judging whether the touch switch is switched on or switched off normally or not according to a comparison result. By using the method and the device of the monitoring method and the monitoring system of the touch switch, the touch switch can be confirmed whether to be switched on normally or switched off normally through judging the voltages of the two ends of the touch switch relative to the same reference electrical level after the touch switch in a high voltage system of an elective vehicle receives a switching-on command or a switching-off command. The invention provides the effective and reliable monitoring method and the motoring system of the touch switch, thus the touch switch can be correctly judged whether to be switched on normally or switched off normally.

Description

technical field [0001] The invention relates to a monitoring method and system for a contact switch. Background technique [0002] Contact switches can be used in control circuits to switch on and off the connection between electric loads and power sources, and are usually used in the field of automatic control, such as the field of electric vehicles. figure 1 It is a block diagram showing the high-voltage power consumption system of the electric vehicle when the contact switch is used in the electric vehicle field. like figure 1 As shown, the high-voltage power consumption system of an electric vehicle includes a high-voltage battery pack 110 and an electrical device 120, and the high-voltage battery pack 110 and the electrical device 120 are connected through a contact switch. [0003] During use, when the contact switch is turned on, if the contact switch is not properly controlled, it may cause the contact switch not to be closed normally. On the other hand, when the ...

Claims

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Application Information

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IPC IPC(8): G01R31/327
Inventor 黎刚邓小明马建新胡浩蔡文远
Owner BEIQI FOTON MOTOR CO LTD
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