Force generating device, in particular for a parking brake, method for operating the device and system having the device

摘要

A device for generating a force applied to a component includes a force generating element supported on a resilient support device having first and second, or only a second, spring elements in series in a force transmission chain being stressed during force transmission. The first spring element is less stiff than the second. The first spring element is stressed by a first supporting force over a first spring travel. A spring travel exceeding the first spring travel and a force absorption by the first spring element exceeding the first supporting force are prevented by a first mechanical engaging device. The second spring element is formed by a spring module having a second spring stressed by a second mechanical engaging device with a second supporting force permitting the second spring to only be further stressed when exceeding the second supporting force. A travel sensor detects displacement of the force generating element.

主权项

1. A device for generating a force applied to a component or a tensile element in a first direction, the device comprising:
a force generating element; a support device supporting said force generating element, said support device exhibiting limited resilient flexibility and having at least first and second spring elements disposed in series in a force transmission chain and configured to be stressed during a transmission of force, said first spring element having a lower stiffness than said second spring element; said first spring element configured to be stressed by a first support force over a first spring travel; a first mechanical engagement device preventing a spring travel exceeding said first spring travel and an absorption of force by said first spring element exceeding said first support force; said second spring element being formed by a spring module having a second spring; a second mechanical engagement device prestressing said second spring with a second support force for further stressing said second spring only upon exceeding said second support force; and a travel sensor indirectly or directly detecting a displacement of said force generating element.