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Method for operating an electrically operated friction brake

A technology of friction brakes and electric operation, applied in the direction of brakes, mechanical brakes, brake transmissions, etc., can solve problems such as inaccuracy, wheel locking, and inappropriateness, and achieve the effect of avoiding inaccuracy

Active Publication Date: 2017-09-12
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This is a simple, but imprecise braking operation, which is adequate for a parking brake, but certainly not suitable for a service brake, especially in a vehicle, because here it is important to reach the set point precisely and quickly. moving effect
Unintended overshoot can lead to unwanted and dangerous wheel locking and unintended undercontrol can lead to failure to achieve the desired braking effect

Method used

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  • Method for operating an electrically operated friction brake
  • Method for operating an electrically operated friction brake
  • Method for operating an electrically operated friction brake

Examples

Experimental program
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Embodiment Construction

[0024] Refer below figure 1 By way of example, the invention is explained in detail with the aid of a schematically shown electrically operated friction brake 1 in the form of a floating caliper disc brake. Floating-caliper disc brakes, as often installed in vehicles, are sufficiently known per se, so that the features and function of floating-caliper disc brakes and the basic installation of floating-caliper disc brakes, such as in vehicles, will not be described in detail here. In principle, however, the invention can also be used for other types of brakes, such as drum brakes. It is also possible to provide a further friction surface as a brake disc or drum, such as a more or less flat surface, for example as a brake for a linear movement.

[0025] figure 1 A friction brake 1 is shown with a floating caliper 2 as a brake caliper, which surrounds a friction surface, here in the form of a brake disc 4 . A fixed brake lining 3 (relative to the floating caliper 2 ) and a mov...

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PUM

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Abstract

In order to be able to influence the braking effect of the friction brake (1) in a targeted manner at a specific operating point in order to be able to reliably and simply regulate or control the realization of the desired set braking effect of the friction brake (1), it is proposed that: The actuation process determines the operating energy (EE) of the electric motor (21) and determines the determined operating energy (EE) as the actual operating energy (EE_ist) in a predefined set position of the friction brake (1) and for the set Position or set braking effect Determine the set operating energy (EE_soll) from known data about the friction brake (1) and compensate the actual operating energy (EE_ist) with the set operating energy (EE_soll) by operating the friction brake (1) deviation between.

Description

technical field [0001] The invention relates to a method for operating an electrically operated, motor-driven friction brake, in which the brake lining is pressed against the friction surface for a braking process in order to achieve a predetermined set braking effect of the friction brake up, i.e. by moving to the set position of the friction brake corresponding to the set braking effect. Background technique [0002] For braking, friction brakes generate a predetermined braking torque, or similarly a braking pressure force, in general a specific braking effect. Based on the known force-travel characteristics of the brake actuation, a desired braking torque or brake application force can be assigned to the actuating path, such as the actuating angle, which must be traversed in order to achieve the desired braking effect. Since the braking torque is equal to the friction force multiplied by the friction radius and the friction force is equal to the brake application force m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16D65/16B60T13/06F16D65/18B60T13/74
CPCB60T13/741B60T13/065F16D55/16F16D65/18F16D2121/14F16D2121/24F16D2125/28
Inventor M·普茨
Owner ROBERT BOSCH GMBH
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