Patent ID: 9434366
Filing Date: 2016-09-06
CPC Classification: B60T

Claim Text:
1. A parking apparatus for a vehicle comprising: an electronic parking brake (EPB) valve having a first air outlet port; a first pneumatic delivery line interconnecting the first air outlet port of the EPB valve and a first spring brake system to allow air pressure from the EPB valve to be applied to the first spring brake system to maintain first parking brakes of the vehicle in released position; and a first normally-open solenoid valve having a first air inlet port which is in communication with the first delivery line which interconnects the first air outlet port of the EPB valve and the first spring brake system, wherein the first solenoid valve is operable to vent air pressure from the first delivery line and thereby to apply the first spring brake system to park the vehicle in response to loss of electrical power to the first solenoid valve; wherein (i) the first solenoid valve has a first vent port which exhausts air from the first air inlet port of the first solenoid valve when the first solenoid valve is de-energized, (ii) the EPB valve has a vent port which exhausts air from the first air outlet port of the EPB valve based upon an electrical control signal applied to the EPB valve, and (iii) the vent port of the EPB valve and the first vent port of the first solenoid valve are separate from each other.