摘要:
The invention relates to a method and to a device for determining a roadway coating by means of a vehicle camera system, and comprises the following steps: by means of the vehicle camera system, at least one image of the surroundings of the vehicle is recorded. The at least one image is evaluated in order to detect indications of precipitation and/or the presence of a roadway coating as the roadway is travelled over by the vehicle (E) with the vehicle camera system or by another vehicle (F). The detected indications are taken into consideration in the determination of a roadway coating. The result of the determination of the roadway coating, or a friction coefficient estimation derived therefrom, may preferably be output to a driver assistance function, to a vehicle control function or also as information to the driver.
摘要:
The application relates to a device and a method for increasing the safety of a motor vehicle. A first sensor unit (2) senses the surroundings, in particular in order to detect free spaces and objects (0), and the position and movement thereof. A second sensor unit (20) senses the state of the surroundings, a third sensor unit (30) senses the state of the vehicle, and a fourth sensor unit (40) senses the driver's commands. The data are merged and a driving safety coordinator (6) determines at least one reliable driving corridor (K1, K2, K3, K4 to Kn) predictively and situationally in order to determine the operational safety. The driver's command can be limited to the driving corridor (K1, K2, K3, K4 to Kn) by means of components (9) which can be actuated actively and/or the motor vehicle (1) can be kept in the driving corridor (K1, K2, K3, K4 to Kn) by means of the components (9) which can be actuated actively.
摘要:
The invention relates to a method for carrying out an avoidance manoeuvre of a motor vehicle. In a first method step, an object in the surroundings of the motor vehicle, with which the motor vehicle is on a collision course, is detected. A warning is then output to the driver of the vehicle to the effect that the motor vehicle is on a collision course, and the steering activity of the driver of the vehicle is detected. An externally actuable rear-wheel steering device is subsequently switched in such a way that the front wheels and the rear wheels of the motor vehicle are steered in the same direction. Furthermore, the invention relates to a device for carrying out an avoidance manoeuvre. So that the driver of the vehicle continues to be able to control an avoidance manoeuvre with front and rear wheels which are steered in the same direction, the invention provides that the vehicle movement dynamic effects of the externally actuable rear-wheel steering device which is actuated in the same direction are compensated. For this purpose, a further warning is output to the driver of the vehicle in order to prompt the driver of the vehicle to carry out a greater degree of steering activity which is necessary as a result of the externally actuable rear-wheel steering device being actuated in the same direction.
摘要:
The invention relates to a method for detecting and assessing reflections on a road (7). A camera (2) is provided and is used to produce at least two digital images of at least one point (3) of the road, wherein the images are produced from different recording perspectives (A, B) of the camera (2). Diffuse reflection and specular reflection of the road (7) are then detected by assessing differences in the appearances of the at least one point (3) of the road in the at least two digital images using digital image processing algorithms. Road reflections are particularly preferably assessed using an approximative approach. An item of road condition information is determined on the basis of the detected reflection, in particular an item of road condition information which states whether the road (7) is dry, wet, snow-covered or icy. The invention also relates to an apparatus (1) for carrying out the above-mentioned method and to a vehicle having such an apparatus (1).
摘要:
The invention relates to a device and method for increasing the safety of a motor vehicle. A first sensor unit (2) detects the environment, in particular free spaces and objects (0) and the position and motion of said objects. A second sensor unit (20) detects the environment state, a third sensor unit (30) detects the vehicle state, and a fourth sensor unit (40) detects the driver specifications. The data are amalgamated. According to the invention, a driving safety coordinator (6) is provided, which calculates the risk of collision on the basis of a risk evaluation, and the driving safety coordinator (6) determines pre-collision phases (P1, P2, P3, P4a, P4b) of the motor vehicle (1) with regard to the object (0).
摘要:
The invention relates to a method for determining the condition of the road ahead in a vehicle, according to which method the road surface (113) is illuminated with sensor beams (106, 106'), said sensor beams (106, 106 ') being reflected and absorbed in accordance with the condition of the road surface (113) and the condition of the road being determined on the basis of the reflected sensor beams (115). The method is characterised in that the road surface (113) in front of the vehicle in the direction of travel is illuminated. The invention also relates to a corresponding beam sensor module.
摘要:
The present invention relates to a method for the prediction and adaptation of movement trajectories of a motor vehicle for assisting the driver in his task of driving and/or for preventing a collision or reducing the consequences of an accident. The present invention further relates to a device for carrying out the method. According to the present invention and in order to carry out a prediction and adaptation of movement trajectories of a motor vehicle, an intersection of situatively required movement trajectories, which are determined using an environment sensor system, and physically possible movement trajectories, which result from properties which are characteristic of the driving dynamics of the motor vehicle and from the coefficient of friction obtained between tyres and road up to a maximum possible threshold coefficient of friction, is formed. According to the invention, only movement trajectories are taken into account which lie within this intersection. In this way, it is ensured that only movement trajectories are taken into account which, on the basis of the forces exerted on the wheels and resulting from the calculated movement trajectories by combining braking forces and/or steering forces, lie below the maximum possible threshold coefficient of friction.