`Automotive Transmissions North America
`
`12 –14 May 2009, Detroit (MI), USA
`
`The Centrifugal Pendulum Absorber
`Calming down the drive train
`
`Wolfgang Reik, Bertrand Pennec, Thorsten Krause
`PDF wurde mit pdfFactory Pro-Prüfversion erstellt. www.context-gmbh.de
`
`Valeo Exhibit 1105, pg. 1
`
`
`
`Increase in Engine Torque & Downspeeding
`Based on the Example of a 4 Cylinder, 2.0 litre Diesel Engine
`
`+ 200 Nm
`(+63%)
`
`- 600 1/min
`
`2010
`
`2000
`
`1000
`
`1500
`
`2000
`
`2500
`
`3000
`Speed [1/min]
`
`3500
`
`4000
`
`4500
`
`5000
`
`5500
`
`CTI Symposium -Automotive Transmissions North Amerika
`
`500
`
`400
`
`300
`
`200
`
`100
`
`Engine Torque [Nm]
`
`0
`500
`
`May 2009
`Page 2
`
`PDF wurde mit pdfFactory Pro-Prüfversion erstellt. www.context-gmbh.de
`
`Valeo Exhibit 1105, pg. 2
`
`
`
`Increase in Engine Excitation & Resulting Transmission vibrations
`Based on the Example of a 4 Cylinder, 2.0 litre Diesel Engine
`
`2000, 320 Nm
`Conventional DMF design
`
`2010, 520 Nm
`Conventional DMF design
`
`1600
`
`1400
`
`1200
`
`1000
`
`800
`
`Speed [1/min]
`
`1600
`
`1400
`
`1200
`
`1000
`
`800
`
`Speed [1/min]
`
`600
`
`0
`
`0.02
`
`0.04
`
`0.08
`0.06
`Time [s]
`
`Engine
`Transmission
`
`0.1
`
`0.12
`
`0.14
`
`600
`
`0
`
`0.02
`
`0.04
`
`0.08
`0.06
`Time [s]
`
`Engine
`Transmission
`
`0.1
`
`0.12
`
`0.14
`
`May 2009
`Page 3
`
`CTI Symposium -Automotive Transmissions North Amerika
`
`PDF wurde mit pdfFactory Pro-Prüfversion erstellt. www.context-gmbh.de
`
`Valeo Exhibit 1105, pg. 3
`
`
`
`Increase in Engine Excitation & Resulting Transmission vibrations
`Based on the Example of a 4 Cylinder, 2.0 litre Diesel Engine
`
`2000, 320 Nm
`Conventional DMF design
`
`2010, 520 Nm
`Conventional DMF design
`
`Engine
`Transmission
`
`8000
`
`6000
`
`4000
`
`2000
`
`Accel. Amplitude 2ndorder [rad/s2]
`
`Engine
`Transmission
`
`8000
`
`6000
`
`4000
`
`2000
`
`Accel. Amplitude 2ndorder [rad/s2]
`
`Target: transmission
`
`0
`
`1000
`
`2000
`Speed [1/min]
`
`3000
`
`Target: transmission
`
`0
`
`1000
`
`2000
`Speed [1/min]
`
`3000
`
`May 2009
`Page 4
`
`CTI Symposium -Automotive Transmissions North Amerika
`
`PDF wurde mit pdfFactory Pro-Prüfversion erstellt. www.context-gmbh.de
`
`Valeo Exhibit 1105, pg. 4
`
`
`
`Requirements for Damper Design
`
`higher damper capacity
`larger wind-up angle
`
`same stiffness
`2010 torque
`
`2010
`
`2000
`
`10
`
`20
`
`30
`
`40
`
`60
`50
`Wind-up angle [°]
`
`70
`
`80
`
`90
`
`100
`
`CTI Symposium -Automotive Transmissions North Amerika
`
`700
`
`600
`
`500
`
`400
`
`300
`
`200
`
`100
`
`Torque [Nm]
`
`0
`
`0
`
`May 2009
`Page 5
`
`PDF wurde mit pdfFactory Pro-Prüfversion erstellt. www.context-gmbh.de
`
`Valeo Exhibit 1105, pg. 5
`
`
`
`Transmission
`
`Engine
`
`Speed
`
`Speed
`
`Speed
`
`Speed
`
`Speed
`
`DSpeed
`
`DSpeed
`
`DSpeed
`
`DSpeed
`
`DSpeed
`
`Different ways to achieve vibration isolation
`Eng.
`
`Trans.
`
`Veh.
`
`Engine
`
`Transm.
`
`Vehicle
`
`Link
`
`Drive
`shafts
`
`Clutch
`damper
`
`Additional
`inertia
`
`DMF
`
`Slip
`control
`
`Vibration
`absorber
`
`Prim.
`
`Sec.
`
`Trans.
`
`Absorber
`
`May 2009
`Page 6
`
`CTI Symposium -Automotive Transmissions North Amerika
`
`PDF wurde mit pdfFactory Pro-Prüfversion erstellt. www.context-gmbh.de
`
`Valeo Exhibit 1105, pg. 6
`
`
`
`Vibration absorbing effect
`Basic concept
`
`Input torque
`
`Spring torque
`
`J2
`
`J1
`
`Output torque
`
`Jc
`
`2
`
`1
`2
`
`fabsorb
`
`=
`
`1
`
`Amplitude ratio
`
`1
`Frequency ratio f1/f2
`
`Time
`
`Torque
`
`May 2009
`Page 7
`
`CTI Symposium -Automotive Transmissions North Amerika
`
`PDF wurde mit pdfFactory Pro-Prüfversion erstellt. www.context-gmbh.de
`
`Valeo Exhibit 1105, pg. 7
`
`p
`
`
`Vibration absorbing effect
`Speed-adaptive behaviour
`
`Input torque
`
`Spring torque
`
`J2
`
`Solution: speed-adaptive spring stiffness c ~ n2
`
`J1
`
`Output torque
`
`1
`2
`Frequency ratio f1/f2
`Excitation order
`
`1
`
`Amplitude ratio
`
`Time
`
`Torque
`
`May 2009
`Page 8
`
`CTI Symposium -Automotive Transmissions North Amerika
`
`PDF wurde mit pdfFactory Pro-Prüfversion erstellt. www.context-gmbh.de
`
`Valeo Exhibit 1105, pg. 8
`
`
`
`From Vibration Absorber to Centrifugal Pendulum
`
`Input Torque
`
`Spring torque
`
`J2
`
`J1
`
`W
`
`J1
`
`L
`
`Centrifugal
`force
`
`l
`
`2
`
`lL
`
`W(cid:215)=w
`l
`
`L (cid:215)
`
`W=
`
`lg
`
`=w
`
`Absorber
`
`Absorber
`
`Jk
`
`=w
`
`May 2009
`Page 9
`
`CTI Symposium -Automotive Transmissions North Amerika
`
`PDF wurde mit pdfFactory Pro-Prüfversion erstellt. www.context-gmbh.de
`
`Valeo Exhibit 1105, pg. 9
`
`
`
`Essential possibilities for locating a centrifugal
`pendulum absorber
`
`On flywheel
`
`5 kg
`
`After torsion damper (DMF)
`
`1 kg
`
`Vibracoustic / Freudenberg
`(Bifilar, Sarazin-type)
`
`Engine
`
`Transmission
`
`DSpeed
`
`Speed
`
`Engine
`Transmission
`
`Speed
`
`DSpeed
`
`May 2009
`Page 10
`
`CTI Symposium -Automotive Transmissions North Amerika
`
`PDF wurde mit pdfFactory Pro-Prüfversion erstellt. www.context-gmbh.de
`
`Valeo Exhibit 1105, pg. 10
`
`
`
`A History of Centrifugal Pendulum Absorbers
`
`Sarazin-Type: bifilar suspension
`(US-Patent 2,079,226 -1937)
`
`May 2009
`Page 11
`
`CTI Symposium -Automotive Transmissions North Amerika
`
`PDF wurde mit pdfFactory Pro-Prüfversion erstellt. www.context-gmbh.de
`
`Valeo Exhibit 1105, pg. 11
`
`
`
`Physical pendulum
`
`May 2009
`Page 12
`
`CTI Symposium -Automotive Transmissions North Amerika
`
`PDF wurde mit pdfFactory Pro-Prüfversion erstellt. www.context-gmbh.de
`
`Valeo Exhibit 1105, pg. 12
`
`
`
`Centrifugal Pendulum Absorbers with Salomon Rollers
`
`May 2009
`Page 13
`
`CTI Symposium -Automotive Transmissions North Amerika
`
`PDF wurde mit pdfFactory Pro-Prüfversion erstellt. www.context-gmbh.de
`
`Valeo Exhibit 1105, pg. 13
`
`
`
`Movement of bifilar pendulum
`
`m
`
`l
`
`L
`
`May 2009
`Page 14
`
`CTI Symposium -Automotive Transmissions North Amerika
`
`PDF wurde mit pdfFactory Pro-Prüfversion erstellt. www.context-gmbh.de
`
`Valeo Exhibit 1105, pg. 14
`
`
`
`Dual mass flywheel with pendulum absorber
`Components and configuration
`
`primary mass
`
`arc springs
`
`flange
`
`pendulum mass
`
`May 2009
`Page 15
`
`CTI Symposium -Automotive Transmissions North Amerika
`
`PDF wurde mit pdfFactory Pro-Prüfversion erstellt. www.context-gmbh.de
`
`Valeo Exhibit 1105, pg. 15
`
`
`
`Full Load Simulation –4 Cyl. Diesel 400Nm
`System comparison basic DMF, DMF with ID & with Pendulum
`
`Secondary:
`Basic DMF
`DMF with ID
`DMF with Pendulum
`
`1000
`
`1500
`
`2500
`2000
`Speed [1/min]
`
`3000
`
`3500
`
`40
`
`30
`
`20
`
`10
`
`0
`
`Speed Amplitude 2ndorder Sec. [1/min]
`
`Secondary:
`
`Basic DMF
`DMF with ID
`DMF with Pendulum
`
`Engine
`
`1000
`
`1500
`
`2500
`2000
`Speed [1/min]
`
`3000
`
`3500
`
`200
`
`160
`
`120
`
`80
`
`40
`
`0
`
`Speed Amplitude 2ndorder [1/min]
`
`May 2009
`Page 16
`
`CTI Symposium -Automotive Transmissions North Amerika
`
`PDF wurde mit pdfFactory Pro-Prüfversion erstellt. www.context-gmbh.de
`
`Valeo Exhibit 1105, pg. 16
`
`
`
`CPA Integrated in TC
`Design for RWD
`
`May 2009
`Page 17
`
`CTI Symposium -Automotive Transmissions North Amerika
`
`PDF wurde mit pdfFactory Pro-Prüfversion erstellt. www.context-gmbh.de
`
`Valeo Exhibit 1105, pg. 17
`
`
`
`Full load simulation –4 cyl. diesel 450 Nm
`System comparison turbine damper, double damper
`vs double damper with pendulum absorber
`
`Turbine
`Natural Mode
`
`Engine
`Double Damper
`Turbine Damper
`Double Damper with pendulum
`absorber
`
`120
`
`110
`
`100
`
`90
`
`80
`
`70
`
`60
`
`50
`
`40
`
`30
`
`20
`
`10
`
`Speed Amplitude Differential [1/min]
`
`0
`1000
`
`1200
`
`May 2009
`Page 18
`
`1400
`
`1600
`
`1800
`
`2000
`Speed [1/min]
`CTI Symposium -Automotive Transmissions North Amerika
`
`2200
`
`2400
`
`2600
`
`2800
`
`3000
`
`PDF wurde mit pdfFactory Pro-Prüfversion erstellt. www.context-gmbh.de
`
`Valeo Exhibit 1105, pg. 18
`
`
`
`Design for Fwd
`
`May 2009
`Page 19
`
`CTI Symposium -Automotive Transmissions North Amerika
`
`PDF wurde mit pdfFactory Pro-Prüfversion erstellt. www.context-gmbh.de
`
`Valeo Exhibit 1105, pg. 19
`
`
`
`Engine
`Convential Damper
`Double Damper with pendulum
`absorber
`
`Full load simulation –5 cyl. diesel 400 Nm
`System comparison convential damper
`vs double damper with pendulum absorber
`
`120
`
`110
`
`100
`
`90
`
`80
`
`70
`
`60
`
`50
`
`40
`
`30
`
`20
`
`10
`
`Speed Amplitude transmission [1/min]
`
`0
`1000
`
`May 2009
`Page 20
`
`1200
`
`1400
`
`1600
`
`1800
`
`2000
`
`2200
`
`2400
`
`2600
`
`2800
`
`3000
`
`Speed [1/min]
`CTI Symposium -Automotive Transmissions North Amerika
`
`PDF wurde mit pdfFactory Pro-Prüfversion erstellt. www.context-gmbh.de
`
`Valeo Exhibit 1105, pg. 20
`
`
`
`What else could be done to achieve similar isolation?
`
`6Kg
`
`Ø30
`
`Ø30
`
`Spring rate [Nm/°] 10 (without friction)
`
`25
`
`Sec. mass [kg] 0.0
`
`+6.0
`
`25
`
`+1,0
`
`May 2009
`Page 21
`
`CTI Symposium -Automotive Transmissions North Amerika
`
`PDF wurde mit pdfFactory Pro-Prüfversion erstellt. www.context-gmbh.de
`
`Valeo Exhibit 1105, pg. 21
`
`
`
`Double Clutch Transmission
`
`May 2009
`Page 22
`
`CTI Symposium -Automotive Transmissions North Amerika
`
`PDF wurde mit pdfFactory Pro-Prüfversion erstellt. www.context-gmbh.de
`
`Valeo Exhibit 1105, pg. 22
`
`
`
`Encapsulated Wet DCT Clutch
`Unit to be assembled similar to a torque converter unit
`
`May 2009
`Page 23
`
`CTI Symposium -Automotive Transmissions North Amerika
`
`PDF wurde mit pdfFactory Pro-Prüfversion erstellt. www.context-gmbh.de
`
`Valeo Exhibit 1105, pg. 23
`
`
`
`Summary
`
`● Pendulum absorbers can improve torsional isolation significantly
`
`● Improvement more than 50% for DMFW and up to 80% for Lockup
`Clutch Dampers
`
`● Tuning order has to match main excitation order of engine
`
`Allows downspeeding and thus fuel consumption reduction
`
`May 2009
`Page 24
`
`CTI Symposium -Automotive Transmissions North Amerika
`
`PDF wurde mit pdfFactory Pro-Prüfversion erstellt. www.context-gmbh.de
`
`Valeo Exhibit 1105, pg. 24
`
`
`
`3rd CTI-Symposium
`Automotive Transmissions North America
`
`12 –14 May 2009, Detroit (MI), USA
`
`Thank you for your attention
`
`Any Questions ?
`
`Wolfgang Reik, Bertrand Pennec, Thorsten Krause
`PDF wurde mit pdfFactory Pro-Prüfversion erstellt. www.context-gmbh.de
`
`Valeo Exhibit 1105, pg. 25