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Patent Searching and Data


Title:
ELECTRONIC PARKING CONTROL SYSTEM
Document Type and Number:
WIPO Patent Application WO/2020/211239
Kind Code:
A1
Abstract:
Provided is an electronic parking control system; a parking brake air reservoir (1) is connected to a two-position three-way solenoid valve (3) and a differential relay valve (4) by means of two air brake pipelines (6); the two-position three-way solenoid valve (3) and the differential relay valve (4) are connected by means of one of the air brake pipelines (6); the differential relay valve (4) is connected to the parking cavity of a rear-brake air chamber (5); an electronic hand-brake switch (2) is connected to the two-position three-way solenoid valve (3) by means of a control line (7). The original mechanical hand-brake valve is eliminated and replaced by the electronic hand-brake switch, which is convenient for a driver to operate; the invention effectively reduces the cost of implementing electronic control of a parking brake of a commercial vehicle, improving the sense of high quality of the entire vehicle; the rapid response and release of the parking brake is achieved by means of the rapid charging and discharging of the solenoid valve.

Inventors:
ZHANG HENG (CN)
FAN WENTANG (CN)
ZHU PING (CN)
LI JIANG (CN)
CHEN QINGSHENG (CN)
LIU GUILIN (CN)
Application Number:
PCT/CN2019/102773
Publication Date:
October 22, 2020
Filing Date:
August 27, 2019
Export Citation:
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Assignee:
NANJING GOLDEN DRAGON BUS CO LTD (CN)
International Classes:
B60T13/74; B60T13/68
Foreign References:
CN206606191U2017-11-03
CN106004844A2016-10-12
CN206436994U2017-08-25
CN110103927A2019-08-09
JPS5583651A1980-06-24
Attorney, Agent or Firm:
JIANGSU SUNDY LAW FIRM (CN)
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