Modular hybrid transmission with torque converter baffle

Patent metadata

Field	Value
Publication number	US-9878706-B2
Application number	US-201314138562-A
Country	US
Kind code	B2
Filing date	Dec 23, 2013
Priority date	Dec 23, 2013
Publication date	Jan 30, 2018
Grant date	Jan 30, 2018

Abstract

An assembly includes, among other things, a front module housing an electric machine and an engine disconnect clutch, a transmission aft of the front module, a torque converter axially between the front module and the transmission, and a baffle radially between the torque converter and the transmission.

First claim

What is claimed is:

1. An assembly, comprising:
a front module housing an electric machine and an engine disconnect clutch;
a transmission aft of said front module;
a torque converter axially between said front module and a gearbox of said transmission; and
a baffle radially between a torque converter housing of said torque converter and a transmission housing of said transmission, wherein a curved floor of said baffle nests about a bottom wall of said torque converter housing.

2. The assembly as recited in claim 1 , wherein said baffle divides a space between a bottom center position of said torque converter housing and said transmission housing into a wet side and a dry side.

3. The assembly as recited in claim 1 , wherein said front module, said torque converter and said transmission are part of a modular hybrid transmission.

4. The assembly as recited in claim 1 , wherein said baffle includes a first sidewall and a second sidewall that extend from a floor.

5. The assembly as recited in claim 4 , wherein said floor is a curved floor and at least one of said first sidewall and said second sidewall includes a non-planar portion.

6. The assembly as recited in claim 4 , wherein at least one of said first sidewall and said second sidewall includes a mounting plate configured to mount said baffle to one of said front module and said transmission.

7. The assembly as recited in claim 1 , wherein said baffle is nested about a bottom center position of said torque converter housing.

8. The assembly as recited in claim 1 , comprising a corner at an interface between said front module and said transmission, said corner configured to define a lubricant passageway between said baffle and said transmission.

9. The assembly as recited in claim 1 , wherein said baffle positions said engine disconnect clutch on a wet side of said assembly that is exposed to lubricant and positions said torque converter on a dry side of said assembly that is substantially void of said lubricant.

10. The assembly as recited in claim 1 , wherein said torque converter is partially enclosed by both a housing of said front module and said transmission housing of said transmission.

11. The assembly as recited in claim 1 , wherein said baffle includes a first sidewall nested about a rear wall of said torque converter and a second sidewall nested about a front wall of said torque converter.

12. The assembly as recited in claim 11 , wherein said baffle includes a floor nested about a bottom wall of said torque converter.

13. An assembly, comprising:
a front module housing an electric machine and an engine disconnect clutch;
a transmission aft of said front module;
a torque converter axially between said front module and said transmission;
a baffle between said torque converter and said transmission, wherein said baffle includes a first sidewall and a second sidewall that extend from a floor; and
a scraper that extends between said first sidewall and said second sidewall and a scraper window disposed underneath said scraper.

14. A hybrid electric vehicle, comprising:
a modular hybrid transmission assembly including:
a disconnect clutch;
a torque converter;
a baffle that at least partially surrounds said torque converter and positions said disconnect clutch on a wet side of said assembly that is exposed to lubricant and positions said torque converter on a dry side of said assembly that is substantially void of said lubricant; and
a housing positioned radially outward of said torque converter, and wherein said baffle divides a space between said housing and said torque converter into said dry side and said wet side.

15. The hybrid electric vehicle as recited in claim 14 , wherein said baffle nests about a bottom center position of a housing of said torque converter.

16. The hybrid electric vehicle as recited in claim 14 , wherein said baffle includes a first sidewall and a second sidewall that extend from a floor.

17. The hybrid electric vehicle as recited in claim 16 , wherein said first sidewall, said second sidewall and said floor establish a cavity configured to accommodate a portion of said torque converter.

Assignees

• Ford Global Tech Llc

Inventors

• Frait Steven Anatole
• Brevick John Edward

Classifications

• B60K6/48

  Parallel type · CPC title

• B60W10/02

  including control of driveline clutches · CPC title

• B60K6/405 Primary

  Housings · CPC title

• B60W20/40 Primary

  Controlling the engagement or disengagement of prime movers, e.g. for transition between prime movers {(power-up or power-down of the driveline B60W30/192)} · CPC title

• B60W10/06

  including control of combustion engines · CPC title