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Radar sensor for driver assistance systems in motor vehicles

A technology of radar sensor and driver assistance, applied in the field of radar sensor of driver assistance system, can solve the problem of limiting the acceptability of driver assistance system

Pending Publication Date: 2018-09-28
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the acceptability of driver assistance systems may be limited

Method used

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  • Radar sensor for driver assistance systems in motor vehicles
  • Radar sensor for driver assistance systems in motor vehicles
  • Radar sensor for driver assistance systems in motor vehicles

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0022] figure 1 The radar sensor shown in has a transmitter and receiver unit 10 , an evaluation unit 12 and a control unit 14 , which controls the various workflows in the transmitter and receiver unit 10 and in the evaluation unit 12 .

[0023] The transmitting and receiving device 10 is used to transmit and receive radar signals on four parallel transmitting and receiving channels 16a to 16d. Each channel is assigned an antenna 18 which is used both for transmitting radar signals and for receiving radar echoes.

[0024] As an example, it is assumed that the radar sensor described here is a so-called FMCW (Frequency Modulated Continuous Wave) radar. The transmitting and receiving device 10 feeds each of the transmitting and receiving channels 16 a to 16 d a radar signal whose frequency is ramp-modulated such that the signal consists of a series of successive linear frequency ramps. In each channel, the received radar echoes are then mixed with a part of the associated tran...

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PUM

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Abstract

The invention relates to a radar sensor for driver assistance systems in motor vehicles, comprising a transmitting and receiving device (10) for transmitting and receiving radar signals, an electronicevaluation device (12) for evaluating the received signals, an electronic control device (14) for controlling operating functions of the radar sensor, and a self-monitoring device (22, 24, 26) for detecting operating parameters of the radar sensor and for comparing the detected parameters with the respective set values. The invention is characterized by an actuating device (28) for changing at least one of the operating parameters and by a control circuit for controlling said parameter to its set value.

Description

technical field [0001] The invention relates to a radar sensor for a driver assistance system in a motor vehicle, the radar sensor having a transmitting and receiving device for transmitting and receiving radar signals, an electronic evaluation device for evaluating the received signals , electronic control means for controlling the operating functions of the radar sensor, and self-monitoring means for detecting operating parameters of the radar sensor and for comparing the detected parameters with corresponding desired values. Background technique [0002] In driver assistance systems for motor vehicles, such as distance control systems or collision warning systems, radar sensors are used to detect the traffic surroundings, in particular to locate other road users. For safety reasons, it should be continuously checked in such a radar sensor whether the sensor is actually functioning properly and accordingly whether the auxiliary functions supported by the radar sensor are a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/40G01S13/34G01S13/93G01S7/35G01S13/931
CPCG01S7/35G01S7/4017G01S7/4021G01S7/4056G01S13/343G01S13/931G01S2013/0245G01S7/4013G01S7/403G01S7/4069G01S7/4026G01S7/4008G01S7/40
Inventor D·施泰因布赫K·默特鲍尔M·奥特M·施泰因豪尔
Owner ROBERT BOSCH GMBH
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