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Method and control device for automatic braking of vehicle

A technology of automatic braking and control device, applied in the direction of automatic starting device, brake, etc., can solve the problems of braking distance loss, intervening braking, inability to implement, etc., to achieve the effect of increasing pressure and saving time

Active Publication Date: 2019-09-03
VOLKSWAGEN AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is usually not possible to implement in practical situations, because the braking system of the vehicle may be provided by different suppliers
Therefore, in the emergency auxiliary braking solution until now, the optimal preparation time point of the braking system can only be roughly determined, which may lead to the loss of braking distance or hasty intervention braking

Method used

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  • Method and control device for automatic braking of vehicle
  • Method and control device for automatic braking of vehicle

Examples

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Embodiment Construction

[0025]The structural example set forth below is a preferred structural example of the present invention. In this structural example, the components of this structural form demonstrate each independent feature of the present invention, each of which is also a mutually independent improvement of the present invention, thus serving as the present invention alone or in other unshown combinations. Components. Furthermore, the described constructions are also limited by other or already stated features of the invention.

[0026] Functionally identical elements in the figures are provided with the same reference symbols.

[0027] figure 1 Represents a vehicle, here in particular a car or a truck. The vehicle 1 has wheels 2 on which a braking torque is generated by a brake system 3 in order to reduce the travel speed V of the vehicle 1 . Brake system 3 can have wheel brakes 4 here. Furthermore, brake system 3 has, for example, a control unit 5 with a brake controller ECU and an e...

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PUM

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Abstract

The invention relates to a method for controlling automatic braking of a vehicle, where a collision detection device predicts a possible collision and obtains a TTB braking time point (TTB) for automatic braking at which time it should start For automatic braking, the braking system is in the ready state. At this time, it responds to the braking request of the collision detection device and operates the wheel brakes of the vehicle. The braking system needs a certain reaction time (TL) to be activated from the ready state so that the first time The braking torque is generated by means of the wheel brakes. Here the reaction time (TL) needs to be compensated. The invention is designed for this purpose, providing the duration of the reaction time (TL) of the vehicle for which, starting from the readiness of the braking system, it is possible to operate the wheel brakes at the start time point (TS) when a possible collision is recognized, here the start time point It is obtained by subtracting the duration value of the reaction time (TL) from the TTB braking time point (TTB).

Description

technical field [0001] The present invention relates to a control device and method for controlling automatic braking of a vehicle. Automatic braking can be triggered in the usual way by a collision detection device which anticipates a possible collision of the vehicle and thus requires the braking system of the vehicle to actuate the wheel brakes. The invention also includes a vehicle having a control device according to the invention. Background technique [0002] Emergency auxiliary braking can be realized by means of the method according to the invention. When the driver of the vehicle does not perceive the objects around the vehicle or even if he does, the applied braking force is not enough, emergency auxiliary braking requires the braking system to generate a large deceleration (negative acceleration) for emergency braking or automatic braking. But every braking system has a reaction time before it starts to produce vehicle deceleration. In order to reduce the reac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60T7/22B60T8/172
CPCB60T7/22B60T8/172B60T2201/12B60T2201/022B60T13/746B60T2210/32B60T2220/04
Inventor M·布卢门特里特
Owner VOLKSWAGEN AG