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A method for detecting uneven surfaces in vehicle environments

A technology near the vehicle, on the ground, applied in the direction of vehicle components, measuring devices, using re-radiation, etc.

Active Publication Date: 2019-12-06
ELMOS SEMICON SE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This problem is exacerbated in the case of autonomous vehicles or unmanned robots

Method used

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  • A method for detecting uneven surfaces in vehicle environments
  • A method for detecting uneven surfaces in vehicle environments

Examples

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Embodiment Construction

[0020] figure 1 The rear of an exemplary motor vehicle is shown. The first ultrasonic sensor S1 transmits a first ultrasonic signal US1 to the ground B over a short distance d1. The second ultrasonic sensor S2 transmits a second ultrasonic signal US2 to the ground B over a longer distance d2. The first ultrasonic signal US1 meets B with the ground at the first impact point AP1. The second ultrasonic signal US2 meets the ground B at the second impact point AP2. Since the second distance d2 is longer than the first distance d1 , the first ultrasonic signal US1 requires less time to travel from the first ultrasonic sensor S1 to the first impact point AP1 and then to the first ultrasonic sensor S1 . In this case, the first ultrasonic sensor S1 receives from the ground B the reflection of the first ultrasonic signal US1 at the first impact point AP1. In this case, the second ultrasonic sensor S2 also receives from the ground B the reflection of the second ultrasonic signal US2 ...

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Abstract

The disclosure relates to a method and an associated device for detecting uneven surfaces in vehicle environments. The method comprises emitting a first ultrasonic pulse (US1) or first ultrasonic burst and emitting a second ultrasonic pulse (US2) or second ultrasonic burst, and receiving a first reflection signal of the first ultrasonic pulse (US1) or a first reflection signal of the first ultrasonic burst and receiving a second reflection signal of the second ultrasonic pulse (US2) or a second reflection signal of the second ultrasonic burst. In the further course of the method, a comparisonis made of the first reflection signal with the second reflection signal, and the presence of a surface unevenness in the vehicle's environment, or the presence of a surface curvature in the vehicle'senvironment, is determined.

Description

technical field [0001] The present invention relates to a method and related apparatus for detecting ground unevenness in the vicinity of a vehicle. Background technique [0002] Often, vehicles need to be parked on unpaved roads near ditches and other obstacles (eg curbs or so-called curbs in parking lots, etc.). In this case, even with rear view cameras it is not always possible to detect and evaluate these obstacles correctly. This problem is exacerbated in the case of autonomous vehicles or driverless robots. Autonomous vehicles should be prevented from driving into ditches or down, for example, single or multiple steps where parking spaces may be restricted. Contents of the invention [0003] Therefore, the object of the present invention is to provide a corresponding solution. [0004] Technical scheme of the present invention [0005] The method according to the invention for detecting ground irregularities in the vicinity of a vehicle begins with the step of em...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S15/42G01S15/50G01S7/539G01S15/931
CPCG01S15/42G01S15/50G01S7/539G01B17/08G01S15/931B60W40/06B60W2420/54B60W40/02B60W2420/00B60W2554/00
Inventor 埃格伯特·施皮格尔
Owner ELMOS SEMICON SE