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Method for assisting drivers in the event of aquaplaning on road surface

A driver and steering wheel technology, applied in the field of devices that implement this method, can solve the problems of the vehicle being unable to steer, getting out of control, etc., and achieve the effect of preventing accidents and dangerous situations

Active Publication Date: 2018-03-27
CONTINENTAL AUTOMOTIVE TECH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The vehicle cannot steer in extreme situations and can quickly lose control

Method used

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  • Method for assisting drivers in the event of aquaplaning on road surface
  • Method for assisting drivers in the event of aquaplaning on road surface
  • Method for assisting drivers in the event of aquaplaning on road surface

Examples

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Embodiment Construction

[0036] exist figure 1In a preferred embodiment of the method for assisting the driver in the presence of water skid shown in the form of a flow chart in block 2 , it is checked whether water skid is present. To do this, check the signals of the wheel speed sensors on the front wheels. If the signal shows strong slip, in particular negative slip in rear-wheel drive vehicles and positive slip in front-wheel drive vehicles, that is, if both Water skidding is considered to be detected when the corresponding value for front wheel slip exceeds a defined threshold value. In both cases, the resulting skid produced a clearly measurable change in acceleration and a significant deceleration of the vehicle due to the wavy drag of the water that occurred.

[0037] The presence of severe slippage results in only little or no cornering or transverse forces being transmitted between the front wheels and the road surface, which can be used to adjust the direction of the vehicle. The vehicle...

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PUM

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Abstract

Disclosed are a method and an device for assisting drivers in the event of aquaplaning on a road surface on which a vehicle travels; at least one variable relating to vehicle dynamics is used to verify whether an aquaplaning event is occurring, and if if an aquaplaning event is acknowledged, an intervention is performed on a rear wheel brake (42, 46) in order to change directions, the brake pressure being adjusted in accordance with a steering maneuver desired by the driver.

Description

technical field [0001] The invention relates to a method for assisting a driver in the event of water skidding on a road surface on which a vehicle is traveling, wherein the presence of water skidding is checked on the basis of at least one driving dynamics (driving dynamics) variable. The invention also relates to a device for carrying out such a method. Background technique [0002] The phenomenon of hydroplaning or hydroplaning results in a reduction in the forces that can be transmitted between the respective tires of the vehicle and the road surface. In particular, cornering or lateral forces can be reduced. The vehicle performs hardly or only limited steering in spite of a sharp turn of the steering wheel, or performs a steering mainly due to, for example, a crosswind or an inclination of the road surface. The steering angle set by the driver no longer corresponds to the movement of the vehicle. In extreme situations the vehicle cannot steer and can quickly spiral o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T8/1755B60T8/176
CPCB60T8/1755B60T8/176B60Y2400/3032B60T8/172B60T8/1761
Inventor T·拉什特P·劳尔A·埃克特
Owner CONTINENTAL AUTOMOTIVE TECH GMBH
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