Method and apparatus for selectively activated powered actuation of a hydraulic drive system
DCFirst Claim
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1. A hydraulic lift gate system for a hydraulic lift gate attached to a vehicle, the system comprising:
- an electronic control circuit integrated into the system and being configured to enable activation of a gravity down mode of operation of the hydraulic lift gate attached to the vehicle at any time during a power down mode of operation, said activation of gravity down mode of operation is performed in response to a sensed condition that occurs during the power down mode of operation.
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Abstract
A method and apparatus for selectively activating a gravity down mode of a hydraulic system during operation of a lift gate. An electronic control circuit is added to hydraulic control circuitry and is configured to selectively interrupt the power down mode or gravity down mode of operation of the hydraulic system based on either a manual input (override) or a sensed condition and switch to the other mode of operation.
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8 Claims
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1. A hydraulic lift gate system for a hydraulic lift gate attached to a vehicle, the system comprising:
an electronic control circuit integrated into the system and being configured to enable activation of a gravity down mode of operation of the hydraulic lift gate attached to the vehicle at any time during a power down mode of operation, said activation of gravity down mode of operation is performed in response to a sensed condition that occurs during the power down mode of operation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
Specification