摘要:
A rollover sensing apparatus and method are provided for generating a safing (arming) signal for use in vehicle rollover detection. The rollover sensing apparatus includes a first acceleration sensor located on a vehicle and oriented an angle offset from the longitudinal axis and lateral axis of the vehicle, and sensing longitudinal and lateral components of acceleration of the vehicle. The apparatus includes a second acceleration sensor located on the vehicle and oriented at an angle offset from the longitudinal axis and lateral axis of the vehicle, and sensing longitudinal and lateral components of acceleration of the vehicle. The apparatus further includes control logic for determining a safing signal as a function of at least one of the acceleration signals. The safing signal may be used to detect a vehicle rollover and deploy restraint devices.
摘要:
A supplemental restraint controller includes a main control portion and a safing control portion. In one example, the control portions communicate using one of pulse width modulation, frequency modulation or discrete digital signals. In one example, general input/output ports of an integrated circuit chip are used for establishing the communication between the main control portion and the safing control portion. In a disclosed example, the safing control portion includes an internal oscillator that provides cost savings and space savings.
摘要:
In order to produce a safing concept, an extra-safing-sensor in the control unit (ECU) is foregone and the sating function from one of the available acceleration or turn-rate sensors (S1 to S5) is replaced. Furthermore a pre-stage is connected to the firing element (Z1, Z2), before the existing firing path, which, depending upon the sensor signals as analysed by the controller unit (1), controls a safety switch (T11), in series with the firing switches and the firing element.
摘要:
A vehicle occupant restraining system includes a plurality of safety restraint devices and utilizes a main controller and a safing controller to determine whether or not conditions are proper for deploying each safety restraint device. The system discriminates between front, side, rear, and roll-over impact events and determines which safety restraint devices should be deployed in response to an impact event. The system also independently determines whether to activate a fuel cut-off switch in response to an impact event. The main and safing controllers utilize vehicle data from a main center tunnel sensor assembly and various satellite sensors to make deployment decisions. The safing controller is used to independently verify whether or not the safety restraint should be deployed.
摘要:
An apparatus for occupant protection in a vehicle, having a sensor for picking up a transverse deflection of structure-borne sound of a body component of the vehicle, and having an evaluator for controlling an occupant protection device of the vehicle depending on the structure-borne sound that is picked up.
摘要:
A vehicle collision damage reduction system is provided. The system works by detecting the relative speed between the vehicle and an object, such as another vehicle. A danger level is calculated based on parameters such as speed and distance to the object; the danger level could be at an “emergency level” or at some lower level. Based on the danger level, different corrective measures and the degree of the corrective measures can be adjusted to attempt to minimize occupant injury. For example, the airbag can be adjusted to better protect the occupant, a pre-tensioner can be activated at a certain level, and the inclination of a child restraint seat may be adjusted as well.
摘要:
A vehicle occupant protection activation system includes a satellite sensor which communicates with a safety controller for controlling each safety system. If a heightened likelihood of a vehicle crash or roll-over condition exists, the satellite sensor sends a safing message to the safety controller. When the safing message is received by the safety controller, it responds to the satellite sensor with a safing response including a seed message therein. The seed message is temporarily stored in the safety controller and is also stored by the satellite sensor. If it is determined that the event requires deployment, the satellite sensor sends a deploy command to the safety controller that includes the seed message therein to authenticate the command. The safing controller is thus assured that the deploy command is authorized and inadvertent deployment due to a single point fault in the satellite sensor is prevented.
摘要:
A vehicle collision damage reduction system is provided. The system works by detecting the relative speed between the vehicle and an object, such as another vehicle. A danger level is calculated based on parameters such as speed and distance to the object; the danger level could be at an nullemergency levelnull or at some lower level. Based on the danger level, different corrective measures and the degree of the corrective measures can be adjusted to attempt to minimize occupant injury. For example, the airbag can be adjusted to better protect the occupant, a pre-tensioner can be activated at a certain level, and the inclination of a child restraint seat may be adjusted as well.
摘要:
In an activating device for a passenger protection system in a vehicle, erroneous activating operation caused by improper operation of a microcomputer or electrical noise is prevented even though electronic switches are used to operate a squib. A microcomputer has output ports connected to first through third driving circuits controlling first through third electronic switching devices connected in series with a squib for deploying a passenger protection device. A timer circuit is connected to the first switching device by way of a prohibiting circuit provided as a hardware unit independent of the microcomputer.
摘要:
A vehicle rollover event detector (10) includes a rollover sensor (14). A first accelerometer (80) senses vehicle acceleration in a direction offset from the front-to-rear axis of the vehicle (12) up to a maximum acceleration sensing level and provides a first acceleration signal indicative thereof. A second accelerometer (96) senses vehicle acceleration in the offset direction at acceleration levels in excess of the maximum acceleration sensing level of the first accelerometer and provides a second acceleration signal indicative thereof. A controller (26) selects the first accelerometer or second accelerometer and provides an actuation signal (110) when the signal from the rollover sensor and the selected first or second accelerometers both indicate a vehicle rollover event.