Acoustic warning signal detection for motor vehicles
First Claim
1. A method comprising:
- operating a sound sensor mounted to a trunk lid of a motor vehicle to detect a road user knocking on an exterior panel of the vehicle, wherein the road user is one of a pedestrian and a cyclist; and
operating a driver assistance system of the vehicle to determine a speed and a steering angle of the vehicle, determine whether the speed undershoots a first value and the steering angle exceeds a second value, and carry out an automatic braking and/or steering intervention by the vehicle in response to the knocking.
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Accused Products
Abstract
A method for operating a motor vehicle having at least one sound sensor for detecting acoustic signals generated outside the vehicle includes the steps of detecting an acoustic signal by means of the sensor, classifying the detected acoustic signal as a warning signal if the detected signal has defined features, determining the speed of the vehicle, determining the steering angle of the vehicle, defining an action to be carried out by the motor vehicle in response to the detected warning signal, and carrying out the defined action if the speed of the motor vehicle undershoots a defined threshold value and the steering angle of the vehicle exceeds a defined threshold value. The defined action may be a steering and/or braking maneuver by the vehicle, and/or may be alerting a driver of the vehicle.
25 Citations
14 Claims
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1. A method comprising:
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operating a sound sensor mounted to a trunk lid of a motor vehicle to detect a road user knocking on an exterior panel of the vehicle, wherein the road user is one of a pedestrian and a cyclist; and operating a driver assistance system of the vehicle to determine a speed and a steering angle of the vehicle, determine whether the speed undershoots a first value and the steering angle exceeds a second value, and carry out an automatic braking and/or steering intervention by the vehicle in response to the knocking. - View Dependent Claims (2, 3, 4, 5)
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6. A method comprising:
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operating a sound sensor mounted on a trunk lid of a motor vehicle to detect an impact on an exterior panel of the vehicle; determining the impact was made by a road user knocking on the exterior panel, wherein the road user is one of a pedestrian and a cyclist; determining a speed and a steering angle of the vehicle; and operating a driver assistance system of the motor vehicle to output a warning message to a driver of the vehicle in response to the knocking if the speed undershoots a first value and the steering angle exceeds a second value. - View Dependent Claims (7, 8, 9, 10, 11)
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12. A motor vehicle comprising:
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a sound sensor mounted to a trunk lid of the vehicle and operative to detect a sound made by an impact on an exterior panel of the vehicle; a signal analysis module determining an amplitude and/or frequency of the sound and based on the amplitude and/or frequency determining that the impact was a knocking by a road user, wherein the road user is one of a pedestrian and a cyclist; and a driver assistance system operative to monitor a speed and a steering angle of the vehicle and to carrying out an action by the motor vehicle in response to the knocking if the speed undershoots a first value and the steering angle exceeds a second value. - View Dependent Claims (13, 14)
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Specification