Pump and roll system for a vehicle
First Claim
1. A system for permitting movement of a vehicle having brakes while an auxiliary component of the vehicle is operated by the vehicle, comprising:
- a pressurized fluid source;
a control device coupled to the pressurized fluid source and the brakes of the vehicle to release the brakes in response to a first signal and to at least partially apply the brakes in response to a second signal;
a controller configured to apply the first signal to the control device when at least one of a first set of conditions exist and to apply the second signal to the control device when a second set of conditions exist;
wherein the first set of conditions comprise one condition that the auxiliary component is off and another condition that a throttle is actuated.
1 Assignment
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Accused Products
Abstract
A system is provided for permitting movement of a vehicle having brakes while an auxiliary component of the vehicle is operated by the vehicle. The system includes a pressurized fluid source. A control device is coupled to the pressurized fluid source and the brakes of the vehicle to release the brakes in response to a first signal and to at least partially apply the brakes in response to a second signal. A controller applies the first signal to the control device when at least one of a first set of conditions exist and applies the second signal to the control device when a second set of conditions exist.
59 Citations
34 Claims
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1. A system for permitting movement of a vehicle having brakes while an auxiliary component of the vehicle is operated by the vehicle, comprising:
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a pressurized fluid source; a control device coupled to the pressurized fluid source and the brakes of the vehicle to release the brakes in response to a first signal and to at least partially apply the brakes in response to a second signal; a controller configured to apply the first signal to the control device when at least one of a first set of conditions exist and to apply the second signal to the control device when a second set of conditions exist; wherein the first set of conditions comprise one condition that the auxiliary component is off and another condition that a throttle is actuated. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A system for a vehicle having wheels with a brake and an engine-driven auxiliary unit, comprising:
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a first supply line having a first pressure; a second supply line having a second pressure a control device having a first inlet interfacing with the first supply line and a second inlet interfacing with the second supply line and an outlet interfacing with the brake device; a controller configured to provide one of a first signal and a second signal to the control device to transmit one of the first pressure and the second pressure to the brake device so that the brakes are movable between a first position to permit movement of the vehicle and a second position to arrest movement of the vehicle during operation of the auxiliary unit. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. An aircraft rescue and firefighting vehicle having an engine-driven pump configured to deliver a fire suppression material and a brake device, comprising:
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a tubing network coupled to the vehicle and interconnecting a pressure source to an inlet of a control device and interconnecting an outlet of the control device to the brake device; and a controller interfacing with the control device for operation between a first position to release the brake device and permit movement of the vehicle when at least one of a first set of conditions representative of the pump and the vehicle are present, and a second position to at least partially apply the brake device to arrest movement of the vehicle when a second set of conditions representative of the pump and the vehicle are present; wherein the first set of conditions comprises an indication that the pump is not delivering the fire suppression material. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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34. A pump and roll system for a vehicle having a fire suppression pump, the vehicle having an accelerator device to cause movement of the vehicle and a brake device configured to activate one or more brakes to stop the vehicle, comprising:
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a pressurized fluid source; a control device coupled to the pressurized fluid source and the brakes of the vehicle and operable between a first position to release the brakes for movement of the vehicle in a pump and roll mode when the accelerator device of the vehicle is actuated and a second position to at least partially apply the brakes to stop the vehicle when the accelerator device is released and the fire suppression pump is operating.
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Specification