Abstract:
A sensing system (10) for a vehicle (12) includes a single vision sensor (14) that has a position on the vehicle (12). The single vision sensor (14) detects an object (40) and generates an object detection signal. A controller (16) is coupled to the vision sensor (14) and generates a safety system signal in response to the position of the vision sensor (14) and the object detection signal.
Abstract:
A method of detecting a lane change of a subject vehicle (20), having a locating device (10) which uses angular resolution for locating vehicles (VEH1, VEH2, VEH3) traveling in front, and a device (44) for determining the yaw rate (ω0) of the subject vehicle. The angular velocity (ωi) of at least one vehicle traveling in front relative to the subject vehicle (20) is measured using the locating device (10), and a lane change signal (LC) indicating the lane change is formed by comparing the measured angular velocity (ωi) to the yaw rate (ω0) of the subject vehicle.
Abstract:
A vehicle warning system includes a vehicle having first and second outer zones and a passenger compartment. A first active safety system monitors the first outer zone and generates first warning signals. A second active safety system monitors the second outer zone and generates second warning signals. A vehicle audio output device includes a plurality of speakers that are located in the vehicle passenger compartment. The first warning signals are output to a one or more of said speakers of the vehicle audio output device at a first frequency. The second warning signals are output one or more of said speakers of the vehicle output audio device at a second frequency.
Abstract:
A near object detection (NOD) system includes a plurality of sensors, each of the sensors for providing detection coverage in a predetermined coverage zone and each of the sensors including a transmit antenna for transmitting a first RF signal, a receive antenna for receiving a second RF signal and means for sharing information between each of the plurality of sensors in the NOD system.
Abstract:
A device and a method are for monitoring misalignment of a distance sensor on a vehicle which represents a combination of two individual procedures. The two individual procedures are selected in such a way that one procedure has advantages in areas in which the other procedure functions disadvantageously, so that the weaknesses of one procedure may be compensated for by the strengths of the other procedure. Furthermore, with the aid of this combination, it may be decided with far greater certainty whether a misalignment is present which may be removed using suitable correcting measures, or whether an extreme misalignment is present, based on which the system must be switched off.
Abstract:
A method for assisting in a passing maneuver for motor vehicles (24) having a distance and speed control device, in which vehicles (40, 42) in the passing lane (28) are also taken into account and, if the traffic situation detected by sensors (18) or an intervention by the driver suggests a desire to pass, control is temporarily carried out to an increased passing speed, wherein the distances to the vehicles (40, 42) located in the passing lane are measured, and the passing speed is calculated as a function of the distances (d0, di) of the vehicle (32) to be passed and at least the vehicle (40) directly preceding in the passing lane (28).
Abstract:
A lane-keep control system is installed in a host vehicle equipped with an inter-vehicle distance control system. The lane-keep control system is arranged to decrease a threshold to be compared with the vehicle traveling condition for determining the tendency of the lane deviation when the inter-vehicle distance is being executed, so that the deviation avoidance control during execution of the inter-vehicle distance control is started earlier than the deviation avoidance control during inexecution of the inter-vehicle distance is started.
Abstract:
A radar transmitter includes a digital ramp generator circuit for generating a VCO control signal. The ramp generator includes a digital signal processor and a digital-to-analog converter. In one embodiment, the VCO output signal is up-converted to provide the transmit signal and in another embodiment, the VCO operates over the transmit frequency. Also described is a VCO comprising a DR and a phase shifter. A temperature compensation feature includes detecting the transmit frequency and comparing the DSP output generating the detected frequency to a DSP output stored in association with the detected frequency. Also described is a technique for compensating for non-linear VCO operation in which the DSP output words are adjusted to provide a waveform complementary in shape to the non-linear VCO characteristic. Susceptibility of the radar to interference is reduced by randomly varying at least one parameter of the ramp signal, such as offset interval or voltage range, in at least one ramp signal cycle.
Abstract:
A system for monitoring operation and location of a first moving vehicle relative to a second moving vehicle. A minimum separation distance between the first and second vehicles is estimated, based on the first vehicle velocity, and optionally on the second vehicle velocity, using location determination (LD) signals received from satellite-based transmitters from GPS, GLONASS and LEO satellites, or from ground-based signal sources such as LORAN signal towers, and using ranging signals from SONAR, RADAR or a similar system. The minimum separation distance is compared with the actual separation distance at selected times, and a vehicle driver is advised if the actual separation distance is too small, if the separation distance is decreasing too quickly, or if the second vehicle velocity is decreasing too quickly. The second vehicle may travel in the same traffic lane, in an adjacent lane, or on a road that intersects the road used by the first vehicle. Where the first and second vehicles travel on separate roads that will intersect, the system estimates whether the second vehicle will stop, or will be able to stop, at the intersection. The second vehicle may be a railroad car, such as a locomotive, or a road vehicle. A maximum vehicle clear-view velocity, consistent with vehicle stopping within a selected distance, is estimated. Road conditions are estimated and compensated for in estimating the minimum separation distance and/or the maximum vehicle clear-view velocity.
Abstract:
Die Erfindung betrifft ein Verfahren zur Längs- und Querführungsunterstützung des Fahrers eines Fahrzeugs, bei dem die Längsführungsunterstützung als Abstandsregelung zur Regelung des Abstands zwischen dem Fahrzeug (10) und einem diesem vorausfahrenden Führungsfahrzeug (20) durchgeführt wird und bei dem die Querführungsunterstützung wahlweise als eine Objektfolgeregelung zur Führung des Fahrzeugs (10) nach einer Bewegungsspur (33) des vorausfahrenden Führungsfahrzeugs (20) oder als eine Spurfolgeregelung zur Führung des Fahrzeugs (10) längs einer markierten Fahrspur (30) bzw. als eine kombinierte Spur-Objektfolgeregelung durchgeführt wird. Die Querführungsunterstützung ist dabei nur dann verfügbar, wenn die Abstandsregelung aktiv ist und wenn, weiterhin der Abstand zwischen dem Fahrzeug (10) und dem Führungsfahrzeug (20) geringer ist als eine vorbestimmte Abstandsgrenze und/oder dass ein Deichselwinkel (μ) als Sichtwinkel vom Fahrzeug (10) zum Führungsfahrzeug (20) geringer ist als eine vorbestimmte Winkelgrenze. Die Erfindung betrifft weiterhin ein Fahrerassistenzsystem zur Durchführung des Verfahrens.