Title:
WINDSHIELD GLASS ELECTRIC HEATING CONTROL CIRCUIT, CONTROL METHOD AND SYSTEM
Document Type and Number:
WIPO Patent Application WO/2021/093077
Kind Code:
A1
Abstract:
A windshield glass electric heating control circuit, control method and system. The control method comprises: when an ambient temperature is lower than a preset first threshold, a windshield glass heating command relay pulls in, and a normally open contact of the windshield glass heating command relay is closed; when the ambient temperature is lower than the preset first threshold and a windshield glass heating switch is turned on, a windshield glass heating contactor pulls in, and the windshield glass starts to be heated; when the ambient temperature is greater than a preset second threshold, the windshield glass heating command relay does not pull in, and the normally open contact of the windshield glass heating command relay is disconnected; and when the ambient temperature is greater than the preset second threshold and the windshield glass heating switch is turned on, the windshield glass heating contactor does not pull in, and the windshield glass is not heated. By means of the solution above, a temperature threshold of electric heating of windshield glass can be adjusted according to the climate and season of a position where a railway vehicle operates, without replacing the windshield glass or a windshield glass overheating protection device.
Inventors:
JING MEILI (CN)
YANG ZHIYUE (CN)
WEI HAIYANG (CN)
MA XINHUA (CN)
HE SHILEI (CN)
FENG BAOXIANG (CN)
REN JING (CN)
CAI QIAN (CN)
LI YUMING (CN)
YANG ZHIYUE (CN)
WEI HAIYANG (CN)
MA XINHUA (CN)
HE SHILEI (CN)
FENG BAOXIANG (CN)
REN JING (CN)
CAI QIAN (CN)
LI YUMING (CN)
Application Number:
PCT/CN2019/125375
Publication Date:
May 20, 2021
Filing Date:
December 13, 2019
Export Citation:
Assignee:
CRRC TANGSHAN CO LTD (CN)
International Classes:
B60S1/02; H05B3/84
Foreign References:
| CN207644343U | 2018-07-24 | |||
| CN207644343U | 2018-07-24 | |||
| CN203427707U | 2014-02-12 | |||
| CN101638087A | 2010-02-03 | |||
| CN204131761U | 2015-01-28 | |||
| CN203753086U | 2014-08-06 | |||
| DE102005060326A1 | 2007-06-21 |
Attorney, Agent or Firm:
IPFUTURE INTELLECTUAL PROPERTY LAW OFFICE (CN)
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