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Driver alert system for steering wheel of motor vehicle

A technology of alarm system and steering wheel, which is applied in the field of driver alarm system and can solve the problems such as the weakening of the effectiveness of the alarm function

Inactive Publication Date: 2013-08-28
AUTOLIV DEV AB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Moreover, since the effective part of the vibration energy will be transmitted outward through the steering column, the vibration force at the edge of the steering wheel and the effectiveness of the alarm function will be weakened.

Method used

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  • Driver alert system for steering wheel of motor vehicle
  • Driver alert system for steering wheel of motor vehicle
  • Driver alert system for steering wheel of motor vehicle

Examples

Experimental program
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Embodiment Construction

[0016] The steering wheel device 10 is provided on a diesel locomotive, and includes a steering column 11 and a steering wheel 12 mounted on the steering column 11 via a steering hub 13 . Said steering wheel 12 comprises a peripheral rim 14 and a frame portion 16 comprising spokes 15 for connecting the rim 14 to the steering wheel hub 13 . The frame part 16 and the edge 14 are covered by a suitable casing, eg foam material.

[0017] A vibration module 17 is connected to the frame part 16 of said steering wheel 12 , more preferably to the spokes 15 . The vibration module 17 includes a motor 18 with a rotating shaft 19, a block 20 connected eccentrically to the rotating shaft 19 of the motor 18, a cable assembly 21 for supporting and controlling the motor 18, and a 17 is connected to the fixed element 22 of the steering wheel 12 .

[0018] The current assembly 21 connects the electric motor 18 with the power unit and / or the electronic control unit, not shown in the figure. Th...

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PUM

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Abstract

A driver alert system for the steering wheel of a motor vehicle includes a vibration module with an eccentric mass and a driving device for rotating said eccentric mass about a rotational axis. The vibration module is arranged such that the rotational axis of the eccentric mass is essentially parallel to the steering column axis.

Description

technical field [0001] The invention relates to a driver alarm system for a motor vehicle steering wheel. Background technique [0002] From European patent EP 0856 432 A2 it is known that a vibration module comprises a pair of piezoelectric actuating elements located on the steering wheel. However, practically suitable piezoelectric actuation elements require very high operating currents. Furthermore, since the force for turning the steering wheel usually acts on the piezoelectric elements, these elements have to be made larger in size. [0003] From another embodiment known from European patent EP 0856 432 A2, a vibration module comprises an electric motor with an eccentric mass connected to the motor shaft. The active part of the vibration due to the rotation of the eccentric mass has a component perpendicular to the plane of the steering wheel edge. These vibrations can generate unwanted noise within the steering column and adjacent components such as the instrument p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60K35/00B60R16/02
CPCB60W50/16B62D1/046
Inventor 帕斯卡尔·勒马松
Owner AUTOLIV DEV AB
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