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US 12,623,739 B2Granted
Automatic axle lift system
OwnerRobert A. Erwin, Paul Lovejoyinventors
Life of this patent
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Abstract
An automatic axle lift system including a first sensor circuit configured to detect the presence of a brake signal and a turn signal and, in response, to generate a lift command signal that lifts an axle or a set of axles of a vehicle. The automatic axle lift system also includes a second sensor circuit that detects the lift command signal and, in response, generates a caution light signal. The automatic axle lift system includes a third sensor circuit that detects the lift command signal and, in response, latches the second sensor circuit to maintain the lift command signal.
Claims7
An automatic axle lift system comprising:
- a first sensor circuit configured to detect the presence of a brake signal and a turn signal and, in response, to enable a lift command signal that lifts an axle of a vehicle;
- a second sensor circuit configured to detect the lift command signal and, in response, to enable a caution light signal;
- and
- a third sensor circuit configured to detect the lift command signal and, in response, to latch the first sensor circuit to maintain the lift command signal,
- wherein the third sensor circuit is further configured to detect the caution light signal and, in response, to disable the latch of the first sensor circuit, thereby disabling the lift command signal.
2 more elements
Dependencies are inferred from the claim text.