Obstacle detection apparatus

A technology for detecting devices and obstacles, applied in the directions of measuring devices, signaling devices, transportation and packaging, etc., can solve problems such as approaching obstacles, and achieve the effect of improving the ease of driving

Inactive Publication Date: 2006-05-24
HONDA ACCESS CORP
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Problems solved by technology

[0003] However, in a four-wheel drive vehicle, when the switch body such as the tailgate is opened, or when the back tires and ski brackets are installed at the rear, the distance from the above-mentioned ultrasonic sensor to the obstacle is different from the distance from the end of the vehicle. There will be a difference between the distance between the head and the obstacle. When the ultrasonic sensor detects the obstacle, there is a problem that the driver is close to the obstacle before the driver recognizes it.

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Embodiment Construction

[0021] Preferred embodiments of the present invention will be described below with reference to the drawings. 1 is a perspective view of a vehicle having an obstacle detection device according to the present embodiment, wherein (a) is a diagram showing a closed tailgate, and (b) is a diagram showing a opened tailgate. figure 2 It is a block diagram showing the configuration of the obstacle detection device. Fig. 3 is a rear side view of the vehicle and schematically shows the relationship between the sensor unit and the rearmost part of the vehicle. Figure 4 is a flowchart showing the main flow of the obstacle detection device. Figure 5 is a flowchart showing the reporting process A of the obstacle detection device. Figure 6 is a flowchart showing the reporting process B of the obstacle detection device.

[0022] A vehicle 1 shown in FIG. 1 is a four-wheel drive vehicle, and a compartment 2 is provided at the rear thereof. The compartment 2 has a pair of side walls 3 and...

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Abstract

The present invention provides an obstacle detection device capable of accurately conveying the distance between the rearmost part of a vehicle and an obstacle without giving the driver a sense of incongruity. The obstacle detection device (10) detects the obstacle (21) of the vehicle (1) by the sensor part (7). (21) Configuration of a receiver for reflected waves generated by reflection. Predetermined detection distances (L2), (L3) within the maximum detection distance (L1) are varied by a detection distance variable circuit (16). An alarm is periodically generated by the alarm mechanism (20) corresponding to the detection distance.

Description

technical field [0001] The invention relates to an obstacle detection device for preventing vehicle collision. Background technique [0002] In the past, as an obstacle detection device that detects whether there is an obstacle behind the vehicle and reports the detection result to the driver as an alarm, the obstacle detection device proposed in the past is to install an ultrasonic sensor on the rear bumper of the vehicle. A device that receives the reflected waves emitted from the ultrasonic sensor after colliding with obstacles and detects obstacles located behind the vehicle based on the reflected waves. [0003] However, in a four-wheel drive vehicle, when the switch body such as the tailgate is opened, or when the back tires and ski brackets are installed at the rear, the distance from the above-mentioned ultrasonic sensor to the obstacle is different from the distance from the end of the vehicle. There will be a difference between the distance from the head to the ob...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S15/931B60R21/00
CPCB60Q9/006G01S15/931
Inventor 福田充博山下胜敏堀本尚伸
Owner HONDA ACCESS CORP
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