摘要:
A method and apparatus is provided that classifies a seat occupant into one of several different weight classes based on an estimated value of the seat occupant weight. An occupant's measured weight varies when the occupant's seating position changes or when the vehicle travels over adverse road conditions. A plurality of weight sensors are used to measure the weight exerted by a seat occupant against a seat bottom and are used to determine center of gravity for the seat occupant. A seat belt force sensor is also used to assist in classifying the seat occupant. Compensation factors using the seat belt force and center of gravity information are used to generate an estimated weight value. The estimated value of the occupant weight is compared to a series of upper and lower weight thresholds assigned to each of the weight classes to generate an occupant weight sample class. Over a period of time, several estimated weight values are compared to the weight class thresholds. Once a predetermined number of consistent and consecutive occupant weight sample classes is achieved, the occupant is locked into a specific occupant weight class. When the weight class is locked, the separation value between the upper and lower thresholds is increased to account for minor weight variations due to adverse road conditions and changes in occupant position.
摘要:
A child seat anchor apparatus includes at least one sensor for measuring tension exerted on a system including a pair of anchor brackets disposed between the bottom and back cushions of a vehicle seat. In a first mechanization, the anchor brackets are directly coupled to individual sensors mounted on an anchor frame that is bolted to the seat frame. In a second mechanization, the anchor brackets are fastened to an anchor frame that is pivotably mounted on the seat frame, and the anchor frame is additionally coupled to the seat frame through a single sensor responsive to the tension exerted on the anchor frame by the anchor brackets.
摘要:
System on a moving object for monitoring components or subsystems includes sensors for obtaining a value of a measurable characteristic of the component or subsystem and generating a signal indicative or representative of the value, and a processor operatively connected to the sensors for receiving the signal from each sensor and analyzing the value of the measurable characteristic to determine that the component or subsystem has a fault condition, e.g., an actual or potential fault or failure. A communications unit is coupled to the processor and transmits a diagnostic or prognostic message relating to the determination of the fault condition of the component or system to a remote site, upon direction or command by the processor. The processor may be part of a diagnostics module and configured to recognize a predetermined fault condition, using for example pattern recognition technologies.
摘要:
A method and a system in the classification of objects occupying a seat, in particular for the reliable control of the triggering of restraint systems in motor vehicles. Utilized are the dynamics of a person seated on the seat, based on the acceleration forces acting on the person. Using the variables of these forces and the force exerted on the seat cushion of the seat by the mass of the person and its change, there is a determination, as a redundant variable, the mass, the location of the center mass and other physical variables and these are used for the reliable classification.
摘要:
A device for the detection of an object on a vehicle seat, including a camera and a processing unit for the generation of a two-dimensional representation of the object is provided. The device also includes at least two illumination sources, which are positioned in such a manner that the object can be illuminated from different directions, and the processing unit is suitable to generate a three-dimensional representation of the object from two dimensional representations, each generated under different illumination conditions.
摘要:
A vehicle safety device includes a seat mounted within a passenger compartment of the vehicle, in which the seat is movably connected to a vehicle frame by a seat position adjusting mechanism that allows the seat to move along an axis between a forward-most position and a rearward-most position. An air-bag is mounted within the passenger compartment in front of the forward-most position of the seat, with the forward-most position of the seat defined as a position of the seat in which a distance between a passenger seated in the seat and the air-bag is equal to a minimum safe clearance. In addition, an exemplary method of maintaining a minimum safe clearance between an air-bag mounted in a vehicle and a vehicle passenger includes the steps of preventing motion of a seat toward the air-bag beyond a forward-most position, in which, when in the forward-most position, a passenger seated in the seat is separated from the air-bag by a predetermined minimum safe clearance, and providing a position adjusting mechanism for at least one vehicle control pedal to allow a passenger seated in the seat to adjust a distance between the seat and the at least one pedal by moving the at least one pedal toward and away from the seat. An automatic seat positioning system, which takes into account both seat to air-bag distance and eye height and automatically, may be used to optimally and automatically position a passenger to maximize safety and comfort.
摘要:
A seat belt tension sensor is attached to a seat belt assembly in a vehicle. The seat belt tensor sensor is secured to the vehicle by a bolt. The sensor includes a housing that is secured by the bolt. An anchor plate is mounted to the housing. The anchor plate has a hole for the bolt and an opening. A strain gage is secured to the housing and extends into the opening. The strain gage has an aperture. A spring is located between the anchor plate and the strain gage. An actuator support is located between the spring and the strain gage to actuate the strain gage. The actuator has a projection extending through the aperture that contacts the anchor plate. The projection prevents a shift in the output of the strain gage when the sensor is subjected to mechanical shock.
摘要:
A child seat adapted for use in a vehicle, the child seat comprising: a base portion; a carrier portion configured to be removably secured to the base portion; a restraint system component; a sensor for providing a signal indicative of a state of the restraint system component; an electronic control unit secured to either the carrier portion or the base portion, the electronic control unit being operably coupled to the restraint system component to receive the signal, the electronic control unit being capable of processing the signal to provide an output indicative of the state of the restraint system component; and an electrical connector for providing electrical connection between the sensor and the electronic control unit.
摘要:
An occupant detection system for detecting an occupant on a seat of a vehicle includes an antenna electrode in a seat bottom of the seat, and an electronic unit connected to the antenna electrode and the vehicle. The electronic unit applies a load current to the antenna electrode so as to generate a weak electric field, and detects a potential current passing through the antenna electrode. The electronic unit detects an occupant based on an impedance and a phase difference, which are based on the load current and the potential current.
摘要:
A method and apparatus for detecting an improperly installed auxiliary child seat of the type that is secured in a motor vehicle by the seatbelt, and providing an alert to a vehicle operator in the case of improper installation. A seat occupancy sensor, a seatbelt buckle condition sensor, and a seatbelt tension sensor provides electrical signals to a child seat detection module, which determines that an improper installation condition exists if the auxiliary child seat is present and the seatbelt buckle is unfastened. The child seat detection module further determines an improper installation condition if the auxiliary child seat is present, the seatbelt buckle is fastened, and the seatbelt tautness is not within an acceptable range. If an improper installation condition is detected, the child seat detection module triggers an alerting device, such as a warning light on the instrument panel or audible chime. The seat occupancy sensor may a bladder-type weight sensor, or a pressure pattern sensor that is able to detect a child seat based on the weight distribution over the area of the seat. The child seat detection module includes a memory unit containing information for all auxiliary child seats that are compatible with the vehicle. A user interface allows the vehicle operator to input the type of seat installed in the vehicle, the weight of the child to be carried, and other pertinent information if necessary, and the child seat detection module calculates the range of acceptable tension values or looks up the correct values in a saved table.