Braking device having a device spring

Abstract

The invention relates to a braking device (1), in particular for a motor vehicle brake system, wherein the braking device (1) has at least one movable activation element (2,3,4) and at least one device for monitoring the position and movement of at least one activation element (2, 3, 4), and at least one compressible, electrically conductive device spring (11) which is arranged in an elastically prestressed fashion between two abutments, wherein at least one of the abutments is of movable design, and the movement of the abutment is coupled at least partially to a movement of at least one activation element (2, 3 ,4), and wherein the device spring (11) is provided for moving at least one of the abutments into its unactivated release position. In order to provide an improved braking device which permits, in a cost-effective way, precise, reliable, robust and durable determination of the position and movement of an activation element, as far as possible over its entire movement range, the invention proposes that the device spring (11) be additionally assigned a sensing function in that the device spring (11) is the component of the device for monitoring the position and movement of at least one activation element (2, 3, 4), wherein a degree of compression of the device spring (11) can be sensed, and wherein the device spring (11) is arranged in an electrically insulated fashion between the two abutments.

Description

technical field [0001] The invention relates to a braking device, in particular for a motor vehicle braking system, having the features stated in the preamble of independent claim 1 . Background technique [0002] It is important and necessary for a motor vehicle braking system to be able to know as accurately as possible the state of the system at any given moment, in particular the position of the actuating components which is relevant for the build-up of the brake pressure. In motor vehicle brake systems with a pneumatic brake booster, for example, the instantaneous position of a movable wall within the brake booster coupled with respect to its position and movement to the actuating element can be used as a measure of the system state. The obtained information may be transmitted in the form of electrical signals to a control unit, a brake light switch or other devices. A separate measuring device is used for this. [0003] A pneumatic brake booster with a sensor device ...

AI Technical Summary

Problems solved by technology

[0004] The complex construction of such equipment is generally considered to be in need of improvement in terms of the required measurement accuracy and durability, in addition to increased manufacturing, assembly, sealing and calibration costs

Furthermore, this known measuring device tends to require an increased space requirement for the larger required measuring range and causes an increase in weight

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