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Motor vehicle with road judging device

A technology for motor vehicles and roads, which is applied to control devices, vehicle components, steering mechanisms, etc., and can solve problems such as unsuitable driving styles

Active Publication Date: 2017-11-03
GM GLOBAL TECH OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The problem here is that a heavily adjusted running gear for a slippery road surface makes the driver feel that the road surface has better grip than it actually is and can thus induce him to take an unsuitable driving style

Method used

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  • Motor vehicle with road judging device

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Effect test

Embodiment Construction

[0017] figure 1 The steering wheel 1 of the motor vehicle shown is connected to a steering shaft 2 on which a steering angle sensor 3 and an electric motor 4 or other actuators for applying a torque to the steering shaft 2 are arranged. Power steering 5 receives the measured values ​​of steering angle sensor 3 and, on the basis of these measured values, controls a double-acting adjusting cylinder 6 , which controls the track angle of front wheels 8 of the motor vehicle via tie rods 7 .

[0018] exist figure 1 In the illustrated embodiment, there is no mechanical connection between the wheels and the steering wheel that would cause the driver to feel the force required to turn the front wheels directly on the steering wheel 1 . Instead, the feedback unit 18 of the power steering device 5 receives a feedback signal of the amount and direction of the adjustment force exerted by the adjustment cylinder 6 on the tie rod 7 and controls the electric motor 4 in order to exert a torqu...

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Abstract

The invention relates to a motor vehicle with a device (19) for determining the adhesion of a road on which the motor vehicle is or is to be driven and a power steering device (5), wherein the steering is changed according to the result of the determination of the adhesion The size of the booster.

Description

technical field [0001] The invention relates to a motor vehicle with a device for determining the adhesion or the slip resistance of a road over which the motor vehicle travels. Background technique [0002] A vehicle of this type is described, for example, in DE 10 2004 036 087 A1. In such conventional vehicles, the control units for the running gear and instrumentation can be switched to a bad weather mode with the aid of data acquired from various sources in order to take into account the reduced road grip in bad weather. In bad weather mode, for example, the running gear should be adapted to smooth road surfaces or the maximum top speed should be limited. [0003] The problem arises here that the chassis, which is largely adjusted to the smooth road surface, makes the driver perceive that the road surface has better grip than it actually does, and thus induces him to adopt an unsuitable driving style. An automatic top speed limit can be perceived by the driver as an un...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B62D6/00B60W40/068B62D137/00
CPCB62D5/0463B62D6/006B62D6/008B62D6/04B60W2552/40
Inventor T·德根斯泰恩
Owner GM GLOBAL TECH OPERATIONS LLC
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