摘要:
A vehicle is provided having a sensor for detecting a vehicle occupant's presence, and another sensor for detecting an owner's response with respect to automatically opening a vehicle closure panel. An actuator opens the closure panel when the occupant's presence and response are detected. A signal from an emitter outside the vehicle signals occupant presence. A photoelectric and/or optical device, audio receiver, and/or touch-sensitive sensor detects the response. The optical device projects a light beam, and breaking the beam with a gesture signals the response. An automatic closure panel opening apparatus has an RF receiver adapted to receive an RF signal to detect occupant presence, a sensor for detecting the occupant response, and an actuator for opening the closure panel when both the presence and occupant response are detected. A method for automatically opening the closure panel includes detecting an occupant presence and response, and automatically opening the closure panel when a predetermined response is detected.
摘要:
An equivalent power method for reducing the effects of voltage variation during at least one active material actuation event, includes determining an applied real output based on the ideal voltage of a voltage source, the corresponding ideal output of a controller, and a measured real voltage, and for providing voltage out of bounds compensation, by further determining a difference based on the maximum available power output of the controller during said at least one event, and applying the difference to determine the applied real output during subsequent event(s).
摘要:
An equivalent power method for reducing the effects of voltage variation during at least one active material actuation event, includes determining an applied real output based on the ideal voltage of a voltage source, the corresponding ideal output of a controller, and a measured real voltage, and for providing voltage out of bounds compensation, by further determining a difference based on the maximum available power output of the controller during said at least one event, and applying the difference to determine the applied real output during subsequent event(s).
摘要:
A door system includes a structural member and a door that is movably mounted with respect to the structural member for movement between an open position and a closed position. A spring is mounted with respect to the structural member or the door and being sufficiently positioned to bias the door toward its open position when the door is in its closed position. Active material based actuators may selectively compress the spring prior to door closure to minimize door closing effort.
摘要:
A pumping assembly is provided. The assembly includes a first movable element selectively movable within a first pump housing and an actuator including an active material. The active material is configured to undergo a change in attribute in response to an activation signal. The active material is operatively connected to the first movable element such that the change in attribute causes the first movable element to move within the first pump housing. In one example, the active material is a shape memory alloy material having a crystallographic phase that is changeable between Austenite and Martensite in response to the activation signal.
摘要:
A method for detecting a mechanical overload condition of an energized linear actuator to prevent commanding an activation signal to the linear actuator that may mechanically overload the linear actuator includes monitoring feedback variation of a movable element associated with the linear actuator including monitoring a present feedback signal of the movable element, monitoring a previous feedback signal of the movable element, comparing the present feedback signal and the previous feedback signal and determining the feedback variation based on the comparing. The feedback variation is compared to a feedback variation threshold. An input signal associated with the activation signal for controlling the linear actuator is monitored and the input signal compared to an input signal threshold. The electrical overload condition is detected when the feedback variation is less than the feedback variation threshold and the input signal is greater than the input signal threshold.
摘要:
A seat assembly includes an active material in operative communication with a seat surface configured to undergo a change in at least one property upon receipt of an activation signal, wherein the change in at least one property is effective to change at least one feature of the seat surface.