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Control of the speed of a vehicle when cornering in accordance with the speed setpoint

A technology of speed adjustment and speed setting, which is applied to vehicle components, driver input parameters, external condition input parameters, etc., and can solve problems such as imposing manual intervention

Pending Publication Date: 2021-07-23
PEZHO SITROEN AUTOMOBILS SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this optional configuration imposes manual intervention by the driver on the control members associated with the speed regulation function

Method used

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  • Control of the speed of a vehicle when cornering in accordance with the speed setpoint
  • Control of the speed of a vehicle when cornering in accordance with the speed setpoint
  • Control of the speed of a vehicle when cornering in accordance with the speed setpoint

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Embodiment Construction

[0029] The object of the invention is in particular to provide a speed regulation method and an associated speed regulation device DR for allowing regulation especially in the presence of bends The velocity of the vehicle V driving at least partially automatically (or autonomously).

[0030] In the following, as a non-limiting example, the vehicle V is considered to be of the motorized type. The vehicle is for example a car, such as figure 1 shown above. However, the invention is not limited to this type of vehicle. The invention relates to virtually any type of land vehicle which is driven at least partially automatically and which can travel on a roadway.

[0031] exist figure 1 The road R is schematically and functionally shown on the road, which includes a first traffic lane VC1 and a second traffic lane VC2, and two vehicles V' and V are respectively in the first traffic lane and the second traffic lane. Traffic on the traffic lane. The first traffic lane VC1 is fra...

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Abstract

Disclosed is a method intended to control the speed of a vehicle with at least partially automated driving and knowing the radius of curvature of a future segment which it is about to take on its route. This method comprises a step (10-90) which involves controlling the speed of the vehicle in accordance with a speed setpoint and, in the event that a radius of curvature of the future segment representative of a bend is detected, determining a maximum transverse acceleration that the vehicle can undergo in the bend depending on the speed setpoint, then a maximum speed that the vehicle would have in the bend if it underwent this maximum transverse acceleration in the presence of the detected radius of curvature, then imposing a deceleration phase on the vehicle until a deceleration speed chosen as a function of this determined maximum speed is reached.

Description

technical field [0001] The invention relates to vehicles driven at least partially automatically, and more precisely to the regulation of the speed of such vehicles. [0002] In the following, when a vehicle is (partially or fully) automated (i.e. without driver intervention) during an automated driving phase or manually (and thus accompanied by said vehicle's driver at the steering wheel and / or pedals) during a manual driving phase The vehicle is considered to be driving at least partially automatically (or autonomously) while driving on an interventional basis. Background technique [0003] Some vehicles that are driven at least partially automatically (or autonomously) include regulating means responsible for regulating the speed of the vehicle according to a speed setpoint, optionally selected by a driver of the vehicle. Some of these regulating devices include an optional configuration capable of adapting the speed of the vehicle according to the radius of curvature of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W30/14B60W50/00
CPCB60W30/143B60W2050/0026B60W2520/10B60W2540/30B60W2720/125B60W2552/30B60W2556/50B60W30/146B60W2520/125B60W2720/10B60W2720/12
Inventor C·贝勒F·佩罗
Owner PEZHO SITROEN AUTOMOBILS SA
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