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Method of adaptive cruise control, adaptive cruise control system and vehicle incorporating the system

一种巡航控制、前方车辆的技术，应用在巡航控制、控制/调节系统、道路车辆驱动控制系统等方向，能够解决车辆乘员不安等问题，达到保持间隔距离的效果

Inactive Publication Date: 2015-02-11
JAGUAR LAND ROVER LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the following vehicle accelerates to bring the vehicle ahead back into view, but in doing so, the following vehicle accelerates into the corner against the driver's expectations, which can be disconcerting to the vehicle occupants

Method used

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  • Method of adaptive cruise control, adaptive cruise control system and vehicle incorporating the system
  • Method of adaptive cruise control, adaptive cruise control system and vehicle incorporating the system
  • Method of adaptive cruise control, adaptive cruise control system and vehicle incorporating the system

Examples

Experimental program
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Embodiment Construction

[0110] With reference to the accompanying drawings, figure 1 A conventional autonomous cruise control system is shown in which a following vehicle 11 has a forward transmitter to generate a pulsed radar beam 12 that illuminates a vehicle 13 in front. Reflections of the radar beam 12 are detected at the receiver of the following vehicle and the time-of-flight is calculated using known techniques. The speed of the following vehicle is known, and accordingly, the separation distance of the vehicle can be calculated. The autonomous cruise control system is operable to allow a user to input a command to maintain a desired speed in the absence of slow-moving traffic ahead. When the vehicle is traveling at the desired speed, the user presses the 'set speed' button and the vehicle can be automatically kept at the current speed.

[0111] It will be appreciated that a conventional autonomous cruise control system differs from a conventional cruise control system in that it maintains t...

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PUM

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Abstract

A vehicle 11 has an autonomous cruise control module (ACC) which detects turning of a leading vehicle 13 before the leading vehicle 13 passes out of a cruise control beam 12. If this is detected the ACC is disabled and speed of the following vehicle 11 is maintained until a turning location of the leading vehicle 13 is reached. If the following vehicle 11 turns at the turning location, ACC remains disabled until the following vehicle 11 is travelling in a straight line. A directional change of the leading vehicle 13 may be determined in a horizontal plane according to a threshold which may include an angular deviation and / or a rate of change of direction and / or an operating condition such as terrain on which the following vehicle 11 is travelling. A transmitter produces the beam 12 has a pulse having a refresh rate of 10 Hz or greater. An instant cruise control speed may be maintained if a steering angle corresponds to a turning angle of the lead vehicle 13 at the turning location.

Description

technical field [0001] The present invention relates to vehicle cruise control, particularly but not exclusively to autonomous cruise control at lower vehicle speeds. Background technique [0002] Vehicle cruise control allows the driver of the vehicle to set a predetermined road speed independent of grade. Cruise control is generally only enabled for highway driving, typically at speeds greater than 30kph. [0003] Autonomous cruise control (also known as adaptive cruise control or ACC) relies on forward radar to allow a vehicle to follow another vehicle at predetermined intervals. The speed of the following vehicle varies automatically with the speed of the vehicle ahead within certain preset speed and acceleration limits. Autonomous cruise control is typically used in highway driving where interruptions are infrequent and speed changes within a relatively narrow band. [0004] Several control strategies have been developed for autonomous cruise control at highway speed...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K31/00B60W30/16
CPCB60K2310/266B60K2310/246B60W2540/18B60W2550/141B60W2550/30B60W2550/146B60W2550/308B60W2720/106B60W2550/14B60W30/18145B60K2310/248B60W2550/306B60W30/16B60W2750/308B60W2554/80B60W2554/4041B60W2552/00B60W2552/30B60W2552/05B60W2754/30B60W2554/801B60W30/143B60W30/162B60Y2300/143B60Y2300/162B60Y2300/1815B60W2552/20B60W2554/802
Inventor 安德鲁·费尔格雷夫詹姆斯·凯利
Owner JAGUAR LAND ROVER LTD
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