Power supply control system for a vehicle trailer
First Claim
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1. An apparatus comprising:
- a controller connected to a tractor and a trailer, the tractor having a power supply, and the trailer having first and second auxiliary devices and a brake that are powered by the tractor'"'"'s power supply, the controller being configured to selectively enable and disable each of the auxiliary devices in order to reserve electricity for use by the trailer'"'"'s brake, wherein;
when any of a predetermined set of device disabling conditions occurs then disabling both auxiliary devices, the disabling conditions including application of a brake of the tractor or exceeding a threshold speed; and
when none of the device disabling conditions occurs then;
when a first device-selecting condition occurs then enabling the first auxiliary device and disabling the second auxiliary device; and
when a second device-selecting condition occurs then enabling the second auxiliary device and disabling the first auxiliary device.
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Accused Products
Abstract
A controller is usable with a tractor that has a power supply and a trailer that has first and second auxiliary devices. The controller is configured to selectively enable and disable each of the auxiliary devices based on a predetermined set of device disabling conditions wherein: When any of the device disabling conditions occurs, then both auxiliary devices are disabled. When none of the device disabling conditions occurs then, when a first device-selecting condition occurs then the first auxiliary device is enabled and the second auxiliary device is disabled. And when a second device-selecting condition occurs then the second auxiliary device is enabled and the first auxiliary device is disabled.
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Citations
27 Claims
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1. An apparatus comprising:
a controller connected to a tractor and a trailer, the tractor having a power supply, and the trailer having first and second auxiliary devices and a brake that are powered by the tractor'"'"'s power supply, the controller being configured to selectively enable and disable each of the auxiliary devices in order to reserve electricity for use by the trailer'"'"'s brake, wherein; when any of a predetermined set of device disabling conditions occurs then disabling both auxiliary devices, the disabling conditions including application of a brake of the tractor or exceeding a threshold speed; and when none of the device disabling conditions occurs then; when a first device-selecting condition occurs then enabling the first auxiliary device and disabling the second auxiliary device; and when a second device-selecting condition occurs then enabling the second auxiliary device and disabling the first auxiliary device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A method for use with a tractor and a trailer, the tractor having a power supply, and the trailer having first and second auxiliary devices and a brake that are powered by the tractor'"'"'s power supply, for reserving electricity for use by the trailer'"'"'s brake, the method comprising:
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predetermining a set of device disabling conditions, the disabling conditions including application of a brake of the tractor or exceeding a threshold speed; disabling both auxiliary devices when any of the device disabling conditions occurs; enabling the first auxiliary device and disabling the second auxiliary device when both none of the device disabling conditions occurs and a first device-selecting condition occurs, and enabling the second auxiliary device and disabling the first auxiliary device when both none of the device disabling conditions occurs and a second device-selecting condition occurs. - View Dependent Claims (22, 23, 24)
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25. A device for use with a tractor and a trailer, the tractor having a power supply, and the trailer having first and second auxiliary devices and a brake that are powered by the tractor'"'"'s power supply, for reserving electricity for use by the trailer'"'"'s brake, comprising:
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means for disabling both auxiliary devices when any of a set of predetermined device disabling conditions occurs, the disabling conditions including application of a brake of the tractor or exceeding a threshold speed; means for enabling the first auxiliary device and disabling the second auxiliary device when both none of the device disabling conditions occurs and a first device-selecting condition occurs; and means for enabling the second auxiliary device and disabling the first auxiliary device when both none of the device disabling conditions occurs and a second device-selecting condition occurs.
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26. An apparatus comprising:
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a controller for a rig including a tractor and a trailer, the tractor having a power supply, and the trailer having first and second auxiliary devices and a brake that are powered by the tractor'"'"'s power supply, the controller being configured to selectively enable and disable each of the auxiliary devices in order to reserve electricity for use by the trailer'"'"'s brake, by the controller; sensing when a disable condition, of vehicle speed exceeding a nonzero threshold speed, occurs; and disabling both auxiliary devices when the disable condition occurs; and when the disable condition does not occur; enabling the first auxiliary device when a first device-selecting condition occurs; and enabling the second auxiliary device when a second device-selecting condition occurs. - View Dependent Claims (27)
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Specification