Parking apparatus for a heavy vehicle during a loss of electrical power
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United States of America Patent
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Sep 6, 2016
Grant Date -
N/A
app pub date -
Apr 9, 2015
filing date -
Apr 9, 2015
priority date (Note) -
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Abstract
A parking apparatus is provided for a vehicle. The apparatus comprises an electronic parking brake (EPB) valve having an air outlet port. The apparatus also comprises a pneumatic delivery line interconnecting the air outlet port of the EPB valve and a spring brake system to allow air pressure from the EPB valve to be applied to the spring brake system to maintain parking brakes of the vehicle in released position. The apparatus further comprises a normally-open solenoid valve having an air inlet port which is in communication with the delivery line which interconnects the air outlet port of the EPB valve and the spring brake system, wherein the solenoid valve is operable to vent air pressure from the delivery line and thereby to apply the spring brake system to park the vehicle in response to loss of electrical power to the solenoid valve.
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