Inductive proximity obstacle device for vehicle and method thereof

A technology for obstacles and vehicles, applied in the field of sensing obstacles, can solve problems such as inability to sense obstacles, and achieve a good sense of security

Active Publication Date: 2017-03-01
HYUNDAI MOBIS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the other hand, the ratio of the distance between the vehicle and the obstacle image 3 More recently, as in Figure 4 , the 2 reflected signals are also detected overlapping with the ring-time in the ring-time+ interval, and then there will also be a situation where obstacles cannot be sensed at all.

Method used

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  • Inductive proximity obstacle device for vehicle and method thereof
  • Inductive proximity obstacle device for vehicle and method thereof
  • Inductive proximity obstacle device for vehicle and method thereof

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Embodiment Construction

[0022] The invention will become more apparent by reference to the preferred embodiments described above and below which additionally illustrate additional aspects of the invention. Hereinafter, the present invention will be described in detail through such an embodiment so that practitioners can easily understand and reproduce it.

[0023] Figure 5 It is a block diagram of an obstacle sensing device for a vehicle according to an embodiment of the present invention.

[0024] As shown in the figure, the device for sensing approaching obstacles includes: an ultrasonic sensor 100 , a memory 200 , and a control unit 300 . The ultrasonic sensor 100 may be mounted on a predetermined position outside the vehicle (for example, a bumper) as a sensor for sensing obstacles around the vehicle. The memory 200 may be a flash memory as storage means for storing data. Here, the memory 200 stores a value of ring-time (after-vibration time) measured as will be described later. The control ...

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Abstract

Disclosed are a device for detecting a proximity obstacle on a vehicle and a method thereof. The device and the method measure a vibration aftershock time generating when an ultrasonic wave signal on an ultrasonic wave sensor for detecting the obstacle is transmitted; store in a memory if the measured aftershock time is within the aftershock occurrence possible time; detect whether the obstacle is there from the saved aftershock end point; and prevent the error that is recognized as the obstacle far in spite of the obstacle which is actually close to the device by improving the function of detecting the obstacle nearby the device in order to prevent in advance the risk of car accidents as a result. [Reference numerals] (100) Ultrasonic sensor; (200) Memory; (300) Control unit

Description

technical field [0001] The present invention relates to techniques for sensing obstacles for vehicles using ultrasonic sensors, and in particular, techniques for sensing obstacles approaching vehicles. Background technique [0002] Recently, bumpers of vehicles are equipped with obstacle sensing devices for vehicles in order to prevent safety accidents due to collisions with obstacles or people when the vehicle is backing up or parking. The obstacle sensing device senses whether there is an obstacle around the vehicle, and informs the driver with an alarm sound or indicator light. Obstacle sensing devices mainly use ultrasonic sensors. The obstacle sensing device sends ultrasonic waves through the ultrasonic sensor, receives the ultrasonic signals reflected by the obstacles, and judges the approaching direction and approaching distance of the obstacles existing behind the vehicle. If an obstacle approaches within a certain distance, the obstacle sensing device will provide...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S7/537G01S15/93G01S15/08
CPCB60R21/013G01S3/8006G01S5/20B60R21/0134B60R2300/8093B60W50/14B60W2050/143G01S15/931G01S2015/932G01S2015/938
Inventor 曺永燮
Owner HYUNDAI MOBIS CO LTD
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