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Control of a deceleration device of a motor vehicle

A deceleration device, motor vehicle technology, applied in the direction of engine control, brake control system, electric vehicle, etc., can solve the problems of full braking, technical defects or design defects, low integrity level, etc.

Active Publication Date: 2017-02-22
VOLKSWAGEN AG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if such a control unit still generates a request signal for a dangerous braking process due to technical defects, the control unit of the reduction gear will implement the request signal, so that it is still possible, for example, to cause full braking due to a technical defect of the ACC control unit
Since the ACC control unit is only required to meet a low integrity level, technical defects or design defects in the manufacture and inspection of such control units are highly likely to remain undetected

Method used

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  • Control of a deceleration device of a motor vehicle
  • Control of a deceleration device of a motor vehicle
  • Control of a deceleration device of a motor vehicle

Examples

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Embodiment Construction

[0039] The example set forth below relates to a preferred embodiment of the invention. In this exemplary embodiment, the components of the described embodiments each represent inventive features that can be observed independently of each other, these features are also each independently of one another a development of the invention, and it is also possible to combine individual features or combinations other than those shown. Other combinations are considered to be part of the invention. Furthermore, the described embodiments can be supplemented by other features of the invention already described.

[0040] Functionally identical elements in the figures have the same reference symbols.

[0041] attached figure 1 A bird's-eye view of a motor vehicle 1 is shown, which may be, for example, a motor vehicle, in particular a passenger car or a truck. A wheel 2 , a reduction gear 3 , a control device 4 , a communication bus 5 and a vehicle component 6 are depicted in the figure. ...

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PUM

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Abstract

A method(1) for controlling a deceleration device(3) of a motor vehicle, wherein a control apparatus(4) receives a request signal(10) from a vehicle component(6) for vehicle deceleration(9). Protection against mistriggering of the deceleration device(3) is provided. Also provided is an integrity level(11) of the vehicle component(6) to be ascertained, a time profile(14,25) for a deceleration performance of the deceleration device(3) obtained during a braking process(A) to be ascertained, for different times, a respective current minimum integrity level(16) that is at least necessary for the time profile(14,25) ascertained hitherto to be ascertained, and performance limiting to be performed for the request signal(10) if the current minimum integrity level(16) is higher than the integrity level(11) of the vehicle component(6).

Description

technical field [0001] The invention relates to a method for controlling a retarder of a motor vehicle. The reduction means may include, for example, an electronically controlled brake booster for friction brakes and / or a generator for recovering kinetic energy of the motor vehicle. The reduction gear is controlled by the control device according to the request signal of the vehicle component. The vehicle component requests the vehicle to decelerate with the request signal, so that the motor vehicle is braked to decelerate. A control device and a motor vehicle having a control device according to the invention also belong to the invention. Background technique [0002] The braking process of the motor vehicle can be initiated not only by the driver using the brake pedal, but also by the driver assistance system FAS. Emergency braking can be triggered, for example, by the collision detection function of the emergency brake assist system. A deceleration process, for exampl...

Claims

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Application Information

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IPC IPC(8): B60T8/172B60L7/18
CPCB60L7/18B60T8/172B60W50/045B60T17/22B60T2270/413B60W50/038B60W30/18109B60W2520/10B60W2520/105B60W2050/0045B60L2240/12F02D13/04
Inventor M·布卢门特里特M·施温德尔S·吉尔格
Owner VOLKSWAGEN AG
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