Compact high function dual mass fly wheel

Patent metadata

Field	Value
Publication number	US-10619701-B2
Application number	US-201615564062-A
Country	US
Kind code	B2
Filing date	Apr 4, 2016
Priority date	Apr 10, 2015
Publication date	Apr 14, 2020
Grant date	Apr 14, 2020

Abstract

The present invention generally relates to a vehicle system which may include a primary clutch operably coupled with a primary inertia, and a torsional spring operably coupled with the primary inertia and also operably coupled to a transmission input shaft. The transmission input shaft may be operably coupled to a secondary clutch which may be constructed and arranged to engage a secondary inertia. The secondary inertia may be used to deliver a dual mass fly wheel effect and the secondary clutch may be constructed and arranged to be opened during shifting events.

First claim

What is claimed is:

1. A vehicle system comprising:
a primary clutch operably coupled with a primary inertia;
a torsional spring operably coupled with the primary inertia and to a transmission input shaft;
wherein the primary inertia is coupled directly to an engine crank shaft;
wherein the transmission input shaft is operably coupled to a secondary clutch constructed and arranged to engage a secondary inertia; and
wherein the secondary inertia is used to deliver a dual mass fly wheel effect and the secondary clutch is opened during shift events.

2. The vehicle system of claim 1 , further comprising a centrifugal pendulum.

3. The vehicle system of claim 1 , wherein the primary clutch is opened during high speed travel.

4. The vehicle system of claim 2 , wherein the primary clutch is opened when a driver is at or near a zero pedal position.

5. The vehicle system of claim 1 , further including at least one actuator.

6. The vehicle system of claim 1 , wherein the secondary inertia has a larger diameter than the primary inertia.

7. A system comprising:
a torsional spring operably coupled with a primary inertia and to a transmission input shaft;
wherein the transmission input shaft is operably coupled to a secondary clutch constructed and arranged to engage a secondary inertia;
wherein the primary inertia is coupled directly to an engine crank shaft;
wherein the secondary inertia is used to deliver a dual mass fly wheel effect and the secondary clutch is constructed and arranged to be opened during shift events; and
wherein the primary inertia is operably coupled with a permanently engaged starter device.

8. The system of claim 7 , further comprising a centrifugal pendulum.

9. The system of claim 7 , wherein the primary clutch is opened during high speed travel.

10. The system of claim 7 , wherein the primary clutch is opened when a driver is at or near a zero pedal position.

11. A method comprising:
engaging a primary clutch with a primary inertia;
providing a torsional spring operably coupled with the primary inertia and a transmission input shaft, and wherein the transmission input shaft is operably coupled to a secondary clutch;
wherein the primary inertia is coupled directly to an engine crank shaft;
engaging the secondary clutch with a secondary inertia, wherein the secondary inertia is used to deliver a dual mass fly wheel effect;
opening the secondary clutch during shifting events; and
opening the primary clutch during high speed travel.

12. The method of claim 11 , wherein the secondary inertia has a larger diameter than the primary inertia.

13. The method claim 11 , further comprising a centrifugal pendulum.

14. The method of claim 11 , wherein the primary clutch is opened when a driver is at or near a zero pedal position.

15. The method of claim 11 , wherein the primary clutch is welded.

Assignees

• Borgwarner Inc

Inventors

• Maguire Joel M
• Schwekutsch Michael
• Kachler Marco Valentin

Classifications

• F16D25/082

  the line of action of the fluid-actuated members co-inciding with the axis of rotation · CPC title

• F16D25/0638

  with more than two discs, e.g. multiple lamellae · CPC title

• F16D3/12

  specially adapted for accumulation of energy to absorb shocks or vibration (by making use of fluid elements F16D3/80) · CPC title

• F16D2300/22

  Vibration damping · CPC title

• F16F15/133 Primary

  using springs as elastic members, e.g. metallic springs · CPC title