Invention Grant
- Patent Title: Evaluation electronics and method for estimating a master brake cylinder pressure in a vehicle brake system equipped with an electromechanical brake booster
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Application No.: US16474609Application Date: 2017-11-30
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Publication No.: US11572051B2Publication Date: 2023-02-07
- Inventor: Christian Binder , Manfred Gerdes , Herbert Vollert
- Applicant: Robert Bosch GmbH
- Applicant Address: DE Stuttgart
- Assignee: Robert Bosch GmbH
- Current Assignee: Robert Bosch GmbH
- Current Assignee Address: DE Stuttgart
- Agency: Norton Rose Fulbright US LLP
- Agent Gerard Messina
- Priority: DE102016226324.2 20161229
- International Application: PCT/EP2017/080980 WO 20171130
- International Announcement: WO2018/121953 WO 20180705
- Main IPC: B60T17/22
- IPC: B60T17/22 ; B60T8/172 ; B60T13/74 ; H02P15/00

Abstract:
In an electronic evaluation system for a vehicle braking system equipped with an electromechanical brake booster, a method for estimating a brake master cylinder pressure includes: estimating a first initial value of the pressure based on a first current intensity of a current of a motor of the booster at the first time and on a first rotation angle of a rotor of the motor at the first time; specifying a correction value as a difference between the first initial value and a measured value of the pressure; estimating a second initial value of the pressure based on a second current intensity of the current at the second time and on a second rotation angle of the rotor at the second time; and specifying, based on the second initial value and the correction value, an estimated value of the pressure at the second time.
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