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.
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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.
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Citations
37 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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. 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 (12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A vehicle having an engine-driven pump 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. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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37. A pump and roll system for a vehicle having an accelerator device and a brake device configured for operation by an operator of 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;
so that the operator can stop the vehicle following movement in the pump and roll mode by releasing the accelerator device without actuating the brake device.
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Specification