摘要:
The present invention is a power supply for a fluorescent light, particularly a sub-miniature fluorescent light (SFL) which provides compensation for temperature and age effects of the fluorescent light. One or more SFLs are powered by a variable output anode controller and a variable output cathode controller, wherein the illumination output of the SFLs is selectively adjustable based upon the voltage output of one or both of the anode and cathode controllers. In a first example of implementation of the invention, an illumination feedback circuit is provided to the anode/cathode controller, wherein the voltage output is adjusted to compensate for diminished illumination, caused for example by cold operating conditions or age of the sensed SFLs. In a second form of the present invention, a temperature feedback circuit is provided to the anode/cathode controller to provide the aforesaid voltage adjustment to compensate for diminished illumination. In another aspect of the present invention, the SFLs are placed into a ready-state for being presently illuminated based upon sensing of a wake-up signal.
摘要:
An apparatus and method of determining and tracking the position of a main target (an occupant) and secondary targets, comprising the steps of: transmitting a signal T1, of determinable period toward the location of the occupant, generating and storing a first index of data indicative of the time any received signal exceeds a determinable threshold; separating the data within the first index into definable data groups indicative of individual received signals representing potential targets; determining, in relation to each transmitted signal T1, a common group time of receipt Tc for each data group; correlating the group time of receipt to the position of the main target and secondary targets occupant.
摘要:
An apparatus (20) for preventing actuation of an air bag restraining device (90) of a vehicle includes a sensor (24, 26) that senses the presence of a child restraining seat (40) on an occupant seat (30) of the vehicle. A controller (22) is operatively connected to the sensor (24, 26) and to the air bag restraining device (90) for controlling actuation of the air bag and preventing actuation of the air bag when the sensor (24, 26) senses the child restraining seat (40) on the occupant seat (30).
摘要:
An apparatus (20) for sensing pressure in a stiff wall sealed vessel (30) comprises a piezoelectric transducer (200) operatively coupled to the vessel (30) for transferring energy to pressurized fluid in the vessel (30). A piezoelectric sensor (202) is operatively coupled to the vessel (30) for providing a received electrical signal having a frequency value indicative of the oscillation frequency of the pressurized fluid. A receiver circuit (224, 226, 228) is operatively connected to the sensor (202) and provides a fluid resonating signal having a frequency indicative of the fluid pressure in the vessel (30). A drive circuit (230) is operatively connected to the receiver circuit (224, 226, 228) and to the piezoelectric transducer (200). The drive circuit (230) initially drives the piezoelectric transducer (206) with noise. Subsequently, the drive circuit (230) drives the piezoelectric transducer (200) with an energy wave having a frequency equal to a frequency value functionally related to the natural frequency of the pressurized fluid in the vessel (30).
摘要:
A vehicle seat belt retractor system (10) includes two seats (16, 18) each having its own integrated seat belt webbing retractor (60, 112). Each retractor (60, 112) includes locking assembly (76, 80) for blocking belt withdrawal in response to an electrical signal. At a central location in the vehicle spaced from the seats (16, 18), a sensor (24) is disposed for sensing vehicle deceleration exceeding a predetermined deceleration and for providing a control signal indicative thereof. An RF transmitter (42) is electrically connected with the sensor (24) and is actuatable in response to the control signal to transmit an RF signal. An RF receiver (100, 114) on each vehicle seat (16, 18) receives the RF signal and provides an output signal to actuate the locking assembly (76, 80) of the two seat belt retractors (60, 112). Each vehicle seat (16, 18) also has (a) a battery (98) for supplying electric power to actuate the locking assembly (76, 80) of the retractors (60, 112) and (b) a piezoelectric member (90) responsive to an occupant sitting on the seat for generating an electric current to charge the battery (96). In a second embodiment, a separate deceleration sensor (24a) is mounted on each vehicle seat for electrically actuating its associated retractor. In a third embodiment, the transmitted signal provides the power for actuating a vehicle occupant restraint (178).
摘要:
An occupant restraint device (10) for a vehicle includes an air bag (16) mounted in the vehicle door (14) and an accelerometer (30) for measuring sideways acceleration of the door (14). A controller (20) monitors the accelerometer output (34, 36) and determines if the door (14) is in a door opening event or if the vehicle is in a sideways crash condition. The controller (20) actuates the air bag (16) if a vehicle crash condition is detected and disables actuation of the air bag (16) if the vehicle door (14) is determined to be opening.
摘要:
A vehicle crash sensing arrangement includes an accelerometer (28) and an integrator (36) for determining crash velocity in response to sensed crash acceleration. A second integrator (40) determines a crash displacement value from the crash velocity value. A variable velocity threshold value is determined (44) in response to the determined crash displacement value. The crash velocity value is compared (48) against the variable threshold value. The comparator (48) provides a signal indicative of a vehicle crash condition when the crash velocity value is greater than the velocity threshold value.
摘要:
An occupant sensing apparatus for use in an occupant restraint system comprises a film having an electrical characteristic with changeable states and a contact member. When an occupant sits in a vehicle seat, the contact member pushes on the film and changes the state of the electrical characteristic. An electric circuit is connected to the film for providing a first signal when the film indicates an occupant is not present, a second signal when an occupant is present, and a third signal if the film and the circuit become disconnected. The occupant restraint system is enabled when either an occupant is present or an electrical fault condition occurs. In accordance with another embodiment of the invention, an array of sensors located in the seat determines the occupant's position and weight and controls deployment of the occupant restraint system in response to the determined position and weight.
摘要:
A method and apparatus (10) provide a deployment signal for deploying a vehicle occupant restraint device (20) during a side impact to a vehicle. The method includes the step of sensing a non-door side impact at a non-door location, and the step of providing a non-door side impact signal. The method further includes the step of sensing an on-door side impact at a vehicle door, and the step of providing an on-door side impact signal. The non-door side impact signal is evaluated to determine if it indicates a non-door deployment crash condition. The on-door side impact signal is evaluated to determine if it indicates an on-door deployment crash condition. A deployment signal is provided for deploying the vehicle occupant restraint device (20) when either of the side impact signals indicates a deployment crash condition.
摘要:
A test apparatus (20) for testing the dynamic performance and verifying the performance of at least one occupant sensor (82) used in a vehicular safety restraint system comprising: a movable sled slidably oriented relative to the occupant sensor; an object, the presence of which is to be sensed by the sensor, mounted and movable with the sled; a support (22, 24, 26a,b, 32, 36) for slidably supporting the sled relative to the sensor (82); a force producing device (90a,b, 92, 94) for moving the sled toward the sensor in a determinable manner; a data collection device (84) for comparing signals derived from the occupant sensor indicative of the relative position to the object with signals derived upon independent measurement of the motion of the sled.