Invention Grant
- Patent Title: Pedal emulator for a motor vehicle
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Application No.: US16490631Application Date: 2018-02-28
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Publication No.: US11292338B2Publication Date: 2022-04-05
- Inventor: Dennis Mark Burke , Kenneth James Nadeau , Werner Austermeier , Henning Irle , Marcus Irrgang
- Applicant: HELLA GmbH & Co. KGaA
- Applicant Address: DE Lippstadt
- Assignee: HELLA GmbH & Co. KGaA
- Current Assignee: HELLA GmbH & Co. KGaA
- Current Assignee Address: DE Lippstadt
- Agency: Warner Norcross + Judd LLP
- Priority: DE102017104278.4 20170301
- International Application: PCT/IB2018/051278 WO 20180228
- International Announcement: WO2018/158703 WO 20180907
- Main IPC: G05G5/03
- IPC: G05G5/03 ; B60K23/02 ; B60K26/02 ; G05G5/05 ; B60T7/04 ; B60T8/40 ; F16F3/00

Abstract:
A pedal emulator (20, 100) is provided. The pedal emulator includes an emulator piston (28, 102) coupled to a damper (46, D1) that is contained within a housing (22, 104). The damper is surrounded by first (34, S1) and second (38, S2) springs that are carried by a lower spring seat (114), the lower spring seat being upwardly biased by a third spring (S3), for example a wave spring. The first and second springs and the third spring cooperate to provide a counter-force that is tailored to the desired feel of the pedal. First and second sensors measure travel (72, 74) and force in response to downward compression of the emulator piston, and the damper provides hysteresis upon return travel of the emulator piston. A method comprising: providing a brake pedal emulator (100) including an emulator piston (102), the emulator piston (102) being operatively coupled to a brake pedal, wherein the brake pedal emulator (100) is adapted to provide a first force response during a first portion of travel of the emulator piston (102) and a second force response during a second portion of travel of the emulator piston (102); detecting a sequence of actuations of the brake pedal using the brake pedal emulator (100) for conversion into a selected driver input command; and providing vibratory feedback to the brake pedal using a haptic actuator, the vibratory feedback being in response to the selection of a driver input command.
Public/Granted literature
- US20200001711A1 PEDAL EMULATOR FOR A MOTOR VEHICLE Public/Granted day:2020-01-02
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