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Vehicle control system

A technology of vehicle control system and vehicle control device, which is applied in the direction of road vehicle traffic control system, traffic control system, anti-collision system, etc.

Active Publication Date: 2007-08-22
DENSO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the vehicle speed control device cannot assist the driver of the vehicle in his / her driving operation of the vehicle in an adequate manner when the vehicle is traveling along a curve

Method used

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Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0034] FIG. 1 shows the overall configuration of a driving assistance system for a vehicle according to a first embodiment. As shown in Figure 1, the vehicle driving assistance system includes VSC_ECU 10, rudder angle sensor 20, G sensor 30, yaw rate sensor 40, ENG_ECU 50, CCD camera 60a, image recognition processor 60b, radar 70, operation switch 80, navigation System 90 and Curve ECU 100 .

[0035] The VSC_ECU 10 controls a brake actuator (not shown) that applies braking force to the vehicle, and has a function of controlling vehicle stability control (VSC; registered trademark) that controls slip of the vehicle. The VSC_ECU 10 receives information on the target braking force from the in-vehicle LAN, and controls the brake actuator to generate the target braking force. Furthermore, the VSC_ECU 10 transmits information on the vehicle's speed (vehicle speed) Vs0 and brake pressure to the in-vehicle LAN. The rudder angle sensor 20 detects information on the steering angle of ...

no. 2 example

[0102] Since the second embodiment and the first embodiment have many common features, detailed explanations of the common features will be omitted, and explanations will be given focusing on different features. The vehicle driving assistance system of the first embodiment is based on the distance D between the vehicle and a road-related object located on a road curve, and the target vehicle speed V set based on the curvature radius R of the curve. s0_t etc. to calculate the target vehicle acceleration / deceleration dV for accelerating or decelerating the vehicle s0 / dt if the object generating the obstacle the vehicle is traveling on will not appear on the curve in front of the vehicle in the direction the vehicle is traveling. The vehicle is then controlled to accelerate or decelerate so that the acceleration or deceleration of the vehicle reaches the target vehicle acceleration / deceleration dV s0 / dt.

[0103] On the other hand, if the obstacle does not appear on the curve, ...

no. 3 example

[0171] FIG. 13 shows the overall configuration of a vehicle driving assistance system (vehicle brake control system) to which the vehicle control system of the present invention is applied. As shown in Figure 13, the current vehicle brake control system includes a radar 310, a vehicle speed sensor 320, a brake switch (SW) 330, a brake pressure sensor 340, an operation switch (SW) 350, a brake ECU 360, a brake driver 370 , CCD camera 380a , image recognition processor 380b and navigation system 390 .

[0172] The radar 310, for example, applies laser light to a predetermined range in front of the vehicle and receives reflected light to detect distances to road-related objects such as the reflector M5 and the tracer M6, the amount of deviation of the central axis of the road-related object from the lateral central axis of the vehicle (lateral deviation), etc. The reflection plate M5 represents a reflected light intensity equal to or higher than a predetermined intensity, and ro...

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PUM

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Abstract

When a vehicle travels along a curve of a road, a target vehicle acceleration / deceleration (dV s0 / dt) that is used for accelerating / decelerating the vehicle to a target vehicle speed (V s0_t), which is set for the curve, is calculated. Based on a comparison between a present vehicle speed (V s0) of the vehicle and the target vehicle speed (V s0_t ) the vehicle is controlled such that an acceleration / deceleration of the vehicle coincides with the target vehicle acceleratio / deceleration (dV s0 / dt).

Description

technical field [0001] The present invention relates to vehicle control systems. Background technique [0002] A vehicle control system for determining the shape of the road ahead of the vehicle and controlling the vehicle speed has conventionally been proposed (for example, JP3432881B2). According to the vehicle control system in JP3432881B2, when the vehicle decelerates from the vehicle speed V at a predetermined deceleration 0 When decelerating, the distance traveled until the vehicle stops within the predetermined time t2 (predicted distance) can be determined. The test vehicle positions are set in front of the vehicles with a foreseeable distance between them. A second reference node is set at the test vehicle location, and a third reference node is set at a position before the second reference node with a distance A between them (i.e., vehicle speed V 0 ×predetermined timing t1). In addition, a possible traveling vehicle speed for traveling the vehicle between the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T7/12B60W40/06B60R21/00B60T8/1763B60W30/20G08G1/16
CPCB60T8/1755B60T7/22B60T2201/022B60T2201/08B60T2201/081B60T2201/16B60T2210/24B60T2210/32B60W30/02B60W30/16B60W40/072B60W40/076B60W2420/52B60W2550/143G08G1/16G08G1/166G08G1/167B60W2552/20B60W2552/30B60W2420/408
Inventor 伊佐治和美津留直彦
Owner DENSO CORP
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