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Method for operating a control device for a braking system of a motor vehicle, control device and motor vehicle,

A technology of braking equipment and control device, which is applied in the direction of automatic starting device, braking transmission device, electric controller, etc., to achieve the effect of low calculation cost

Active Publication Date: 2019-11-01
VOLKSWAGEN AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Considering only the difference between the actual value and the target value has the disadvantage that the potential of the brake system, ie the maximum achievable time gradient that can be set by the brake pressure pump of the brake system, is not used in certain cases

Method used

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  • Method for operating a control device for a braking system of a motor vehicle, control device and motor vehicle,
  • Method for operating a control device for a braking system of a motor vehicle, control device and motor vehicle,
  • Method for operating a control device for a braking system of a motor vehicle, control device and motor vehicle,

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Embodiment Construction

[0036] The examples described below are preferred embodiments of the present invention. In this exemplary embodiment, the components of the described embodiment are in each case individual features of the invention which are to be regarded independently of each other and which also develop the invention independently of each other, so that they can also be implemented individually or in a manner similar to the one shown. Combinations of different combinations are considered to be part of the present invention. Furthermore, the described embodiments can also be supplemented by other features that have already been described as characteristic of the invention.

[0037] In the figures, identical reference signs are assigned to functionally identical elements in each case.

[0038] figure 1 A motor vehicle 10 is shown, which can be, for example, a motor vehicle, in particular a sedan or a van. A driver assistance system 11 , a control device 12 , a transmission 13 and a braking...

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Abstract

The invention relates to a method for operating a control device (12) for a braking system (14) of a motor vehicle (10), wherein the control device (12) receives a braking request (16) from a driver assistance system (11) and determines a target value (21) of a braking operation parameter of the braking system (14) and determines an ideal temporal process (22) for the braking operation parameter,which gradually leads to the target value (21), complying with a predetermined jerk criterion (24), and a determines a control fault (29) of an actual value (25) of the braking operation parameter inrelation to the ideal process (22) and determines a request value (18) for a controller (20) of a brake pressure pump (19) of the braking system (14) from the control fault (29) on the basis of a controller unit (PI). According to the invention, the control device (12) determines a maximum achievable temporal gradient (27) of the braking operation parameter by means of the brake pressure pump (19)and examines whether the gradient (27) fulfills a freezing criterion (33) and, in the case of the freezing criterion being fulfilled, limits at least one control operation parameter (31) of the controller unit (PI) and / or a gradient of the brake request (16).

Description

technical field [0001] The invention relates to a method for controlling a brake system of a motor vehicle by means of a control device. By means of the method, the braking of the motor vehicle is carried out or activated depending on the braking request of the driver assistance system. A control device and a motor vehicle having a control device according to the invention also belong to the invention. Background technique [0002] In motor vehicles, driver assistance systems relieve the driver of the so-called driving task, that is to say, for example, enable longitudinal guidance (acceleration and braking) and / or transverse guidance (acceleration and braking) without driver intervention. steering). An example of such a driver assistance system is a distance and speed control system (ACC (Adaptive Cruise Control, Adaptive Cruise Control), ie distance control automatic system (Abstandsregelautomat)). Another example of a driver assistance system with longitudinal adjustme...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T7/22B60T13/66G05B11/42
CPCB60T7/22B60T13/662G05B11/42B60T2201/02B60T2260/09B60T7/12B60T8/17555B60T8/321B60T2201/10B60T2250/00
Inventor O.巴斯
Owner VOLKSWAGEN AG
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