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Lane departure prevention apparatus

A lane departure and equipment technology, which is applied in anti-collision systems, vehicle components, vehicle safety arrangements, etc., can solve problems such as the driver's ignorance and the main vehicle's deviation

Active Publication Date: 2007-09-26
NISSAN MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, despite the fact that the host vehicle is tending to deviate, the driver does not know that the operation switch should be turned on so that the host vehicle will deviate from its current state of the lane

Method used

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  • Lane departure prevention apparatus
  • Lane departure prevention apparatus
  • Lane departure prevention apparatus

Examples

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no. 1 example

[0025] Referring first to FIG. 1 , there is illustrated a schematic block diagram of a host vehicle having a lane departure prevention apparatus according to a first embodiment of the present invention. The present embodiment is a rear-wheel drive vehicle provided with the lane departure prevention apparatus of the present invention. The rear-wheel-drive vehicle has an automatic transmission and a conventional differential gear, and has a braking system that allows independent control of braking force at the front and rear wheels and left and right wheels.

[0026] In the diagram of FIG. 1, the host vehicle basically has a brake pedal 1, a booster 2, a master cylinder 3, a fuel tank 4, a pair of front wheels 5FL and 5FR, a pair of rear wheels 5RL and 5RR, a pair of front wheel cylinders 6FL and 6FR, a pair of rear wheel steam 6RL and 6RR, brake hydraulic control unit 7, driving / braking force control unit 8, internal combustion engine 9, automatic transmission 10, accelerator 1...

no. 2 example

[0164] Referring now to FIGS. 12 and 13 , a pair of flow charts for additional processing of the vehicle departure preventing apparatus of FIG. 1 according to a second embodiment are illustrated. In particular, FIG. 12 shows processing contents of a driving / braking force control unit as the lane departure prevention apparatus of FIG. 1 according to a second embodiment of the present invention. FIG. 13 shows the processing contents of device operation detection during the processing of the driving / braking force control unit according to the second embodiment of the present invention.

[0165] In view of the similarity between the first and second embodiments, with the same reference numerals as the parts and / or processes of the first embodiment, it means that the same parts and / or processes as the first embodiment are used in the second embodiment parts and / or processing. Also, descriptions of components of the second embodiment that are the same as components and / or processes...

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PUM

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Abstract

A lane departure prevention apparatus is configured to avoid lane departure even when the driver is not focused on driving operations, in a state in which the system-operating switch is OFF. The lane departure prevention apparatus has a driver condition detection section or device for detecting that the condition of the driver which is a condition in which the driver cannot perceive that the host vehicle is tending toward departure, and a lane departure avoidance control device for setting the braking control for avoiding departure in an operable state when the system-operating switch for the driver to instruct the operation of control braking for avoiding the lane departure is OFF, the braking control for avoiding departure is OFF, and the driver condition detection section or device has detected that the condition of the driver is a condition in which the driver cannot perceive that the host vehicle is tending toward departure.

Description

technical field [0001] The present invention generally relates to lane departure prevention devices for preventing a host vehicle from departing from a driving lane when the host vehicle intends to depart from the lane or appears to be imminent. Background technique [0002] Conventional lane departure prevention devices include devices for notifying a host vehicle of a yaw moment and preventing the host vehicle from departing from a driving lane by controlling the braking force of wheels. These conventional lane departure prevention devices, in the presence of the possibility that the host vehicle may deviate from the driving lane, also inform the driver that the host vehicle may deviate from the driving lane by providing this yaw moment. One such lane departure prevention device is disclosed, for example, in Japanese Laid-Open Patent Application No. 2000-33860. [0003] The lane departure prevention device has an operation switch for ON and OFF of the switching system. T...

Claims

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Application Information

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IPC IPC(8): B60T8/1755B60R21/00B60T7/12B60T7/14B60T8/17B60W30/00B60W30/16G08G1/16
CPCB60T2201/083B60T8/17557B60T2201/08B60T2201/086B60R21/00G08G1/16
Inventor 菅野隆资上村吉孝
Owner NISSAN MOTOR CO LTD