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Vehicle travel control method and travel control device

A driving control, vehicle technology, applied in vehicle parts, transportation and packaging, electric vehicles, etc., can solve problems such as reduced detection accuracy

Inactive Publication Date: 2020-06-05
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, according to the above-mentioned conventional vehicle speed detection method, there is a problem that the detection accuracy decreases when the tires spin or lock, or the tires wear out.

Method used

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  • Vehicle travel control method and travel control device
  • Vehicle travel control method and travel control device
  • Vehicle travel control method and travel control device

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Embodiment Construction

[0046] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0047] [Power transmission path of vehicle]

[0048] First, below, according to figure 1 A power transmission path of a vehicle equipped with the control device of the present invention will be described.

[0049] which is, figure 1 It is a plan view schematically showing the power transmission path of a vehicle equipped with the travel control device of the present invention, and the illustrated vehicle 1 adopts a front engine / front drive (front engine / front wheel drive) system (FF mode)) of a four-wheel drive (4WD) vehicle. This vehicle 1 includes: left and right front wheels WFL, WFR as main driving wheels, which transmit the driving force of the engine E as a driving source via the transmission M, the front differential Df, and the left and right axles AFL, AFR; The left and right rear wheels WRL, WRR transmit part of the drive force of these front wheels WFL, W...

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PUM

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Abstract

The present invention provides a vehicle travel control method capable of automatically traveling a vehicle straight to improve the straight traveling performance of the vehicle. The travel control method for the vehicle (1) comprises the steps of detecting the left and right ground speeds (VL, VR) of the vehicle (1); when a driver's intention to move the vehicle straight or a command to move thevehicle (1) straight according to the control of the vehicle (1) is confirmed, controlling the driving force distribution to the left and right drive wheels (WRL, WRR) or braking force distribution tothe left and right wheels (WFL, WFR (WRL, WRR)), so that the deviation (|VL-VR|) of the detected left and right ground speeds (VL, VR) is within a predetermined range, for example, controlling the drive force of the drive wheel (WRL (or WRR)) at the side where the detected ground speed (VL, VR) is low to be greater than the drive force of the drive wheel (WRR (or WRL) at the other side.

Description

technical field [0001] The invention relates to a driving control method and a driving control device of a vehicle. Background technique [0002] In recent years, an automatic driving technology that automatically controls at least one of the acceleration and deceleration of a vehicle and the steering angle of a steering wheel so that the vehicle travels along a route to a destination has been developed. In such an automatic driving technology, it is indispensable to detect that the vehicle is traveling straight. , based on the steering angle information of the steering wheel of the steering device, etc. (for example, refer to Patent Document 1) [0003] In addition, in automatic driving technology, the detection of the vehicle's driving speed (vehicle speed) is indispensable. In the past, the detection of vehicle speed used a rotation sensor to detect the rotation speed of the tire in contact with the road surface, and multiplied the detected rotation speed by the radius o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W30/18
CPCB60W30/18009Y02T10/72
Inventor 坂上恭平宫田和典冈田祐树若松清志
Owner HONDA MOTOR CO LTD