Method and device for avoiding and/or reducing the consequences of collisions upon evasion with respect to obstacles
First Claim
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1. A method for assisting a driver of a vehicle to avoid a collision with an obstacle, comprising:
- detecting at least one obstacle by using at least one surroundings sensor, wherein physical data of the at least one obstacle is ascertained;
ascertaining, on the basis of the physical data of the at least one obstacle and physical data of the vehicle, a deceleration of the vehicle for a maneuver of the vehicle which, when performed in conjunction with a potential evasive steering operation by the driver providing a transverse vehicle motion, avoids the collision;
determining on the basis of the physical data of the at least one obstacle and the physical data of the vehicle whether the collision with the obstacle is avoidable by steering alone;
responsive to determining that the collision with the obstacle is not avoidable by steering alone, initiating a deceleration of the vehicle in accordance with the ascertained deceleration;
after initiating the deceleration, executing code;
to determine whether the driver has initiated an evasive action; and
that provides that;
responsive to a determination that an evasive action of the driver that includes the steering operation has been initiated, performing a steering assistance in conjunction with the decelerating of the vehicle in accordance with the ascertained deceleration, wherein the steering assistance includes modifying by a steering actuator the driver'"'"'s steering input so that a determined evasive trajectory of the vehicle for avoiding the collision is implemented; and
responsive to a determination that no evasive action of the driver has been initiated, decelerating the vehicle to minimize negative effects of the collision without performing a steering assistance.
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Abstract
A method and a device for assisting a driver of a vehicle to avoid collisions with obstacles are provided, in which method at least one obstacle is detected by way of at least one surroundings sensor, and data of the obstacle are ascertained. On the basis of the data of the obstacle and data of the vehicle, a vehicle deceleration that is favorable for assistance of an evasive operation is ascertained, and the vehicle is correspondingly decelerated.
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Citations
17 Claims
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1. A method for assisting a driver of a vehicle to avoid a collision with an obstacle, comprising:
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detecting at least one obstacle by using at least one surroundings sensor, wherein physical data of the at least one obstacle is ascertained; ascertaining, on the basis of the physical data of the at least one obstacle and physical data of the vehicle, a deceleration of the vehicle for a maneuver of the vehicle which, when performed in conjunction with a potential evasive steering operation by the driver providing a transverse vehicle motion, avoids the collision; determining on the basis of the physical data of the at least one obstacle and the physical data of the vehicle whether the collision with the obstacle is avoidable by steering alone; responsive to determining that the collision with the obstacle is not avoidable by steering alone, initiating a deceleration of the vehicle in accordance with the ascertained deceleration; after initiating the deceleration, executing code; to determine whether the driver has initiated an evasive action; and that provides that; responsive to a determination that an evasive action of the driver that includes the steering operation has been initiated, performing a steering assistance in conjunction with the decelerating of the vehicle in accordance with the ascertained deceleration, wherein the steering assistance includes modifying by a steering actuator the driver'"'"'s steering input so that a determined evasive trajectory of the vehicle for avoiding the collision is implemented; and responsive to a determination that no evasive action of the driver has been initiated, decelerating the vehicle to minimize negative effects of the collision without performing a steering assistance. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A device for assisting a driver of a vehicle to avoid a collision with an obstacle, comprising:
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at least one surrounding sensor configured to detect at least one obstacle; and a control unit configured to receive signals from the at least one surroundings sensor, wherein the control unit; ascertains physical data of the at least one obstacle on the basis of the signals from the at least one surrounding sensor; is configured to ascertain, on the basis of the physical data of the at least one obstacle and physical data of the vehicle, a deceleration of the vehicle for a maneuver of the vehicle which, when performed in conjunction with a potential evasive steering operation by the driver providing a transverse vehicle motion, avoids the collision; generates control signals to initiate a deceleration of the vehicle in accordance with the ascertained deceleration in response to determining that the collision with the obstacle is not avoidable by steering alone; determines on the basis of the physical data of the at least one obstacle and the physical data of the vehicle whether the collision with the obstacle is avoidable by steering alone; is configured to perform the following after initiating the deceleration; respond to a detection of an evasive action of the driver that includes the steering operation, by performing a steering assistance in conjunction with the decelerating of the vehicle in accordance with the ascertained deceleration, wherein the steering assistance includes modifying by a steering actuator the driver'"'"'s steering input so that a determined evasive trajectory of the vehicle for avoiding the collision is implemented; and respond to a failure to detect any evasive action of the driver, by decelerating the vehicle to minimize negative effects of the collision without performing a steering action.
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16. A method for assisting a driver of a vehicle to avoid a collision with an obstacle, comprising:
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detecting at least one obstacle by using at least one surroundings sensor, wherein physical data of the at least one obstacle is ascertained; ascertaining, on the basis of the physical data of the at least one obstacle and physical data of the vehicle, a deceleration of the vehicle for a maneuver of the vehicle which includes a steering operation by the driver providing a transverse vehicle motion; applying the physical data of the at least one obstacle and the physical data of the vehicle to determine where, in a range of distances, the vehicle is located relative to the obstacle, the range of distances including, in order of decreasing distance, a first distance in which the collision is avoidable by braking alone, a second distance in which the collision is avoidable by steering alone, and a third distance in which the collision can only be avoided by a combination of steering and braking; and responsive to determining that the current distance between the vehicle and the obstacle is less than or equal to the third distance; determining an optimal steering and braking strategy and performing a braking in accordance with the optimal strategy to assist a potential evasive steering performed by the driver; determining whether there is an evasive intent based on steering input from the driver; if it is determined that there is the evasive intent, responsive to the determining that there is the evasive intent, triggering a steering actuator to adapt the driver'"'"'s steering input to a steering value corresponding to the optimal strategy; and if it is determined that there is not the evasive intent, responsive to the determining that there is not the evasive intent, triggering a braking actuator to further reduce a kinetic energy of the vehicle without triggering the steering actuator. - View Dependent Claims (17)
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Specification