摘要:
A radar system for motor vehicles, having a radar sensor and an evaluation device for measuring distances and relative velocities of objects in the surrounding field of the vehicle, and a collision detection device, which, on the basis of the measured distances and relative velocities, recognizes an imminent collision and delivers data on the expected time of collision and the impact velocity to a precrash system. The radar sensor is switchable by the collision detection device to a velocity measurement mode in which a more precise measurement of the relative velocity is made.
摘要:
A driver assistance system for motor vehicles has a sensor device for measuring data about the environment of the vehicle, at least two assistance functions, and a data processing device, which analyzes the measured data and generates at least one specific environmental hypothesis for each assistance function, which provides output data in a form prepared for the corresponding assistance function, at least one environmental hypothesis which has a structure divided into a plurality of partial hypotheses being predefined in the data processing device, and the partial hypotheses having such a logical relationship with one another that output data of one partial hypothesis flow into the generation of the other partial hypothesis, and at least two assistance functions directly or indirectly use a shared partial hypothesis.
摘要:
A brake control system for motor vehicles includes a stability system for stabilizing the vehicle from the standpoint of driving dynamics during braking, a triggering unit for the automatic output of a braking demand as a function of the traffic situation, a braking unit which converts the braking demand into a braking action, and a control unit for modifying the braking demand prior to its implementation as a function of the state of the stability system.
摘要:
A radar system for motor vehicles, having a radar sensor and an evaluation device for measuring distances and relative velocities of objects in the surrounding field of the vehicle, and a collision detection device, which, on the basis of the measured distances and relative velocities, recognizes an imminent collision and delivers data on the expected time of collision and the impact velocity to a precrash system. The radar sensor is switchable by the collision detection device to a velocity measurement mode in which a more precise measurement of the relative velocity is made.
摘要:
In a method for providing assistance during a passing maneuver of a motor vehicle having an adaptive cruise control device, the following method steps are used: a preceding object is ascertained as a target object, a distance of the motor vehicle to the target object is ascertained, a relative velocity between the motor vehicle and the target object is ascertained, and a plausibility check corridor is narrowed as a function of the distance and the relative velocity.
摘要:
A method and a device for controlling at least one object detection sensor for a motor vehicle, the at least one sensor being switchable between a plurality of operating modes; a plurality of functions for evaluating the objects detected, using the object detection sensor, being able to access randomly the at least one sensor and a switchover between the operating modes being selected as a function of the instantaneously accessing assistance functions, and a coordinator is provided between the function evaluation devices and the at least one sensor; each function accessing the at least one sensor transmits to the coordinator a biasing probability distribution function, respectively, and the at least one sensor transmits to the coordinator a detection probability density function for each operating mode that is able to be activated, and the coordinator selects the most suitable operating mode for each function accessing the at least one sensor.
摘要:
A method and a device for triggering emergency braking of a vehicle for avoiding a collision or for reducing the severity of a collision, the vehicle having at least one object detection sensor, an ascertainment being made as a function of the detected objects as to whether a collision with an object is imminent and a risk to one's own vehicle in the event of a triggering of emergency braking being ascertained as a function of the current surrounding situation, the triggering threshold for emergency braking being variable in such a way that the probability for a false triggering is increased if a calculated risk posed by emergency braking is low and the triggering threshold for emergency braking being variable in such a way that the probability for a false triggering is lowered if a calculated risk posed by emergency braking is higher.
摘要:
In an object verification method for use in radar systems for motor vehicles, the distances and relative velocities of located objects are determined on the basis of received radar echoes. The signature of multiple reflections is searched for in the received radar echoes to verify real objects.
摘要:
A method and a device for transmitting and receiving electromagnetic radiation are provided to detect, within a future time period, a pending collision with a preceding object. The transmitted radiation is FMCW-modulated, the slope of the frequency ramp is determined as a function of the transmit frequency and as a function of the future time period, and a pending collision within the future time period is ascertained when a negative receive frequency is detected.
摘要:
The invention relates to a method for assisting a driver in driving a vehicle by detecting weather-related visibility limitations, wherein image data of the surroundings of the vehicle and of the windshield are generated by a camera that is directed toward the windshield.