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Method for correcting the course of a motor vehicle and associated motor vehicle course correction device

A technology for motor vehicles, calibration methods, applied in the direction of control devices, vehicle components, transportation and packaging, etc., can solve problems such as accuracy problems

Active Publication Date: 2014-12-24
PEZHO SITROEN AUTOMOBILS SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, all these trajectory control methods suffer from accuracy problems in determining the difference between the vehicle's expected trajectory on a roadway and the vehicle's trajectory measured on that roadway

Method used

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  • Method for correcting the course of a motor vehicle and associated motor vehicle course correction device
  • Method for correcting the course of a motor vehicle and associated motor vehicle course correction device
  • Method for correcting the course of a motor vehicle and associated motor vehicle course correction device

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Embodiment Construction

[0038] Figure 4 A motor vehicle 10 is shown on the roadway with reference numeral 11 . The vehicle 10 has steered wheels 35 and a trajectory correction device 12 with a camera 20 , a control unit 21 , a yaw rate sensor 22 , a speed sensor 23 of the motor vehicle 10 and an active steering system 24 capable of guiding the steered wheels 35 . The motor vehicle 10 also has a longitudinal axis A. As shown in FIG.

[0039] The active steering system 24 has a steering column 33 . A steering wheel 34 is fixed at the end of said column 33 , which steering wheel 34 is operated by the driver to steer the steered wheels 35 of the vehicle 10 . The active steering system 24 also has means for measuring the true angle Av of the steering wheel and auxiliary means for generating a portion of the energy supplied to steer the steering wheel 35 . Furthermore, the system 24 is able to reduce the effort that the driver should transmit, especially at low speeds and at stops.

[0040] Furthermor...

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PUM

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Abstract

The invention essentially relates to a method for correcting the course of a motor vehicle (10) travelling in a traffic lane (11), characterized in that it involves the following steps: a step (100) of acquiring parameters pertaining to the geometry of the traffic lane (11) and to the position of the motor vehicle (10) in the traffic lane (11), a step (102) of determining the heading angle (a) which corresponds to the angle between the longitudinal axis (A) of the motor vehicle (10) and a line (30, 31) of the traffic lane (11), a step (103) of determining the speed of the motor vehicle (10), a step (104) of determining how much time remains before the motor vehicle (10) will cross the line (30, 31) of the traffic lane (11), and a step (106) of generating a dynamic setpoint for the vehicle (10) based on the heading angle (a) and the time remaining before the line (30, 31); of the traffic lane (11) is crossed.

Description

technical field [0001] The invention relates to a motor vehicle trajectory correction method and a corresponding motor vehicle trajectory correction device. The invention has a particularly advantageous application in the field of security and in the field of driver assistance for motor vehicles. Background technique [0002] Motor vehicles typically have a steering wheel secured to a steering system column operated by the driver to steer the vehicle's steered wheels. Steering systems generally include auxiliary devices that generate a portion of the energy that is supplied to steer the wheels in order to reduce the effort that the driver should transmit, more specifically to operate at low speeds and at a standstill. [0003] Some steering systems have an auxiliary driving function, by controlling the computer to control the motor force acting in this direction, so as to transmit a specific auxiliary torque in this direction, so as to realize the assisting effect on follow...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W30/12B60W10/20B62D15/02B60W50/14
CPCB60W10/20B60W30/12B60W40/072B60W50/14B62D15/024B60W2520/14B60W2520/10B60W2710/202B60W2552/00B62D15/025B60W2420/403B60W2710/207B60W2720/24B60Y2400/3015B60W50/0097B60W2552/30
Inventor M·埃波
Owner PEZHO SITROEN AUTOMOBILS SA