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Driving assist apparatus and method for vehicle

A driving assistance and vehicle orientation technology, applied in vehicle components, vehicle safety arrangements, two-dimensional position/channel control, etc., can solve problems such as increased cost, difficult real-time execution, and large amount of calculation.

Active Publication Date: 2005-02-09
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, in this related art, since it is necessary to solve one cubic equation, calculations of a plurality of complex numbers are performed, so the amount of calculation becomes large
Therefore, for the existing computing units installed on the vehicle, it is difficult to perform the calculation in real time
Furthermore, the use of efficient computing units leads to increased costs and is therefore disadvantageous

Method used

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  • Driving assist apparatus and method for vehicle

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Embodiment Construction

[0032] In the following description, the invention will be described in more detail on the basis of exemplary embodiments.

[0033] A driving assistance device according to the present invention will be described below with reference to a parking assistance device as an example. figure 1 is a block diagram showing the construction of the parking assist device 100 according to one embodiment of the present invention. The parking assist device 100 has an automatic steering device 20, and is controlled by a parking assist ECU1, which is a control device. The parking assist ECU 1 is formed of a CPU, a ROM, a RAM, an input signal circuit, an output signal circuit, a power supply circuit, etc., and furthermore, the parking assist ECU 1 has an image processing section 10 that processes images obtained by the rear camera 32 and a steering control section 11 which controls the automatic steering, the rear camera 32 will be described below. While sharing the CPU, ROM, RAM, etc. provid...

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PUM

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Abstract

Driving assist apparatus and method for a vehicle capable of accurately guiding the vehicle to a target region even if the initial state of the vehicle is a steered state are provided. On the basis of the present direction of the vehicle and the direction of the vehicle at a target position, a basic path P0 that changes the vehicle direction so as to coincide with the target direction of the vehicle at the target position is computed. A path P1 from the present position to the target position is computed by adding a straight-line path to the basic path under a predetermined condition.

Description

technical field [0001] The invention relates to a driving assistance device and method for a vehicle, which are used for determining a driving trajectory towards a target position and assisting the driving of the vehicle so that the vehicle travels along the driving trajectory. Background technique [0002] A related art technique of guiding a vehicle toward a target position through the use of automatic steering, steering commands, etc. is disclosed in, for example, Laid-Open Japanese Patent Application JP5-297935. In this related art, in order to accurately guide a vehicle to A target position and the azimuth of the vehicle at the target position coincide with a target azimuth, three basic path patterns are prepared, and then a cubic equation is solved to compensate errors in position, azimuth and curvature. With the solution thus provided, the path pattern is similarly transformed in order to set a target path. [0003] However, in this related art, since it is necessary...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60R21/00B62D15/02G08G1/16
CPCB62D15/0285B60T2201/10
Inventor 岩崎克彦里中久志久保田有一远藤知彦松井章岩切英之杉山享河上清治片冈宽晓高桥新二宫芳树
Owner TOYOTA JIDOSHA KK
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