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A method and a system for controlling vehicle lane holding

A technology for vehicles and lateral vehicles, which is applied to control devices, vehicle components, automatic steering control components, etc., and can solve the problems that drivers cannot like the LKA function

Pending Publication Date: 2020-05-05
感知知识产权有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] As a result of the two aforementioned LKA sh

Method used

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  • A method and a system for controlling vehicle lane holding
  • A method and a system for controlling vehicle lane holding
  • A method and a system for controlling vehicle lane holding

Examples

Experimental program
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Embodiment Construction

[0027] figure 1 is a schematic diagram of a steering system 100 in which the concepts of the present invention may be implemented. In the power steering system of a vehicle, there is a linkage between the front axle road wheel 127 and the steering wheel 120 . The linkage consists of a steering rack 124 with an associated tie rod 125 connected to a steering column 121 via a pinion 122 . The steering column 121 incorporates a torsion bar 128 having a torque sensor for measuring steering torque applied by the driver. The assist torque is actuated by a steering assist actuator consisting of the assist motor 115 and the ECU 110 . Control of the level of assist actuation in the steering assist actuator is controlled by a control system in the ECU.

[0028] figure 2 is a schematic diagram showing the relationship between the vehicle state 210 on the abscissa and the steering wheel torque 220 on the ordinate. Solid line 230 corresponds to the reference relationship between vehic...

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Abstract

The present invention relates to a method for controlling vehicle lane holding for a vehicle with an electric power assisted steering by means of a steering system (100) with a steering assistance actuator and one or more controllable vehicle state actuators comprising measurement of at least one vehicle position input signal with using an on-board vision system for determination of a relative vehicle lane position in the form of a lane curvature, transformation of the relative vehicle lane position to a target yaw and/or lateral vehicle state, measuring at least one steering input signal, determination from said one or more measured steering input signals a torque value applied by the driver via a steering wheel (120), transformation of said torque value to a relative to the afore-mentioned target yaw and/or lateral vehicle state a driver target relative yaw and/or lateral vehicle state, adding said target yaw and/or lateral vehicle state and said driver target relative yaw and/or lateral vehicle state together, and using the resulting yaw and/or lateral vehicle state as a reference signal to one or more controllers for the mentioned control of the one or more vehicle state actuators.

Description

technical field [0001] The invention relates to a method for controlling lane keeping of a vehicle with electric power steering according to the preamble of claim 1 and to a method for controlling lane keeping of a vehicle with electric power steering having the features of the first part of claim 17 system maintained. Background technique [0002] Lane Keeping Assist, Lane Keeping Support or Autopilot (hereafter referred to as LKA) is a vehicle feature designed to help the driver keep the vehicle in the lane of the road. Depending on the legislation and maturity of development, the guiding principles can vary significantly, ranging from simply helping the driver follow the lane, at least for a reasonable time span, to keeping the steering wheel and potentially also autonomously The extent is active, in which case the driver need not be active at all. [0003] Other documented LKA behaviors are functions that do not guide the driver continuously but only when the driver is...

Claims

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Application Information

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IPC IPC(8): B62D15/02B60W30/10B60W30/12
CPCB62D15/025B60W30/12B60W2710/202B60W2554/805B60W2554/801B60W2552/30B62D5/046B62D6/002B60W2520/12B60W2520/125B60W2520/14B60W40/109B60W40/114B60W2540/18B60W10/20
Inventor J.赫尔腾J.波尔U.洛夫奎斯特B.埃里克松H.维福尔斯
Owner 感知知识产权有限公司
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