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Retrograde-motion preventing system for vehicle

A technology for vehicles and vehicle information, applied in collision avoidance systems, traffic control systems for road vehicles, traffic control systems, etc., to solve problems such as warning delays

Inactive Publication Date: 2011-08-03
DENSO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The warning to the user has been delayed at this time

Method used

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  • Retrograde-motion preventing system for vehicle
  • Retrograde-motion preventing system for vehicle
  • Retrograde-motion preventing system for vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0071] The premise of Embodiment 1 is as follows: for the exit road in the parking area, as a one-way attribute, the driving direction is given (hereinafter, the driving direction of the exit road is called the exit road link), and the system does not recognize (do not store) The road information related to the inner peripheral road which is the road in the other parking area. In addition, the summary of this embodiment is to predict whether there is a possibility of going against the direction of the inner peripheral road in the parking area by using the exit road link direction of the exit road before the ego vehicle reaches the exit road in the parking area, and Be warned ASAP.

[0072] In Embodiment 1, first, the operation until the own vehicle enters SA / PA from the main line of the motor vehicle-only road and exits from SA / PA will be described.

[0073] (action until entering SA / PA and exiting SA / PA)

[0074] figure 2 It is an operation flow chart for notification bas...

Embodiment 2

[0117] In Embodiment 1, it is only possible to reach the travelable route of the exit road from the inner peripheral road in the parking area based on the exit road link direction of the exit road. That is, the calculated travelable route does not necessarily coincide with the road in the parking area where the own vehicle actually travels. use Figure 10 The above-mentioned case will be specifically described. exist Figure 10 Among them, 100 represents the loop existing in SA / PA. A solid line 101 represents a travelable route that can reach the exit road 33 c from the current position of the own vehicle 34 calculated in the first embodiment. A dotted line 102 indicates an actual inner peripheral road within SA / PA that can go around the loop 100 from the current position of the own vehicle 34 to the exit road 33c. Here, since the structure in SA / PA is not taken into consideration in the first embodiment, the travelable route 101 is calculated to be passable on the loop 10...

Embodiment 3

[0127] In Embodiment 1 and Embodiment 2, the description has been made on the premise that the system does not store road information on inner peripheral roads in the parking area. Here, when road information including inner peripheral roads and inner peripheral road link directions in the parking area is organized in the future, it is possible to calculate a travelable route based on the organized road information. However, it takes a certain period of time for the road information in the parking area to be completely organized. Even if the location information such as the longitude and latitude of the inner peripheral road is sorted, the information related to the link direction of the inner peripheral road is not necessarily sorted. Therefore, in the third embodiment, the inner peripheral road and the inner peripheral road link direction in the parking area are obtained from the outside, and a travelable route is calculated based on the obtained road information.

[0128] I...

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PUM

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Abstract

A retrograde-motion preventing system for vehicles is provided which can rapidly detect retrograde motion of a vehicle and alert the driver even when a database with completely collected information of retrogression-forbidden rodes in a parking area is not loaded in a vehicle navigation system for vehicles. A one-way attribute is provided to an exit road which is in the parking area and is connected to an external road. With the information, the retrograde motion of a vehicle on the exit road is detected and the driver is alerted. Additionally, in the invention, with the one-way attribute, whether an action which can result in retrograde motion is present in the parking area is pre-detected before the vehicle approaches the exit road, and if retrograde motion is a result according to the estimation, an alert is provided. Therefore, even if the one-way attribute in the parking area has not been completely processed, a retrograde motion alert can be provided rapidly.

Description

technical field [0001] The present invention relates to a system for preventing wrong-way traffic of a vehicle, and relates to a system for notifying when the wrong-way traffic of an own vehicle is detected. Background technique [0002] Conventionally, there is known a reverse traffic prevention system for a vehicle that issues a warning to prevent entering a one-way street at an entrance or exit of a service area or parking area (hereinafter referred to as SA / PA) on a road dedicated to motor vehicles from the reverse direction. For example, Patent Document 1 discloses a technique in which a vehicle with a reverse-traffic prevention system is equipped with a database having information on prohibited reverse-traffic roads, and when approaching from the reverse direction relative to the forward direction of a prohibited reverse-travel road, the vehicle navigation system Guidance is to issue a warning to the driver through at least one of sound and screen display, thereby prev...

Claims

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Application Information

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IPC IPC(8): G08G1/0968G08G1/0969G08G1/16G01C21/34
Inventor 新谷敏弘
Owner DENSO CORP
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