Vehicle thermal management and filtration system

Patent metadata

Field	Value
Publication number	US-2016176262-A1
Application number	US-201615057170-A
Country	US
Kind code	A1
Filing date	Mar 1, 2016
Priority date	Feb 1, 2013
Publication date	Jun 23, 2016
Grant date	—

Abstract

A thermal management system for an electric vehicle is provided. The thermal management system includes a thermal circuit for regulating a battery temperature. A filter is located upstream of the battery for filtering liquid coolant. The thermal management system also includes a second thermal circuit in fluid communication with the battery thermal circuit. The second thermal circuit provides thermal control to a vehicle system other than the battery. The battery thermal circuit includes a plurality of battery cells. Pluralities of heat exchanger fins are located between each of the battery cells to provide the coolant to regulate the battery temperature. The filter has a filtration transfer function based on a filter characteristic of the fins.

First claim

1 .- 16 . (canceled)

17 . A method for managing a battery temperature comprising:
setting a filtration transfer function of a filter based on a filtration characteristic of a heat exchanger for providing a liquid coolant to regulate the battery temperature.

18 . The method according to claim 17 wherein the filtration characteristic comprises a filtration efficiency (FE).

19 . The method according to claim 17 wherein the filtration characteristic comprises a dirt holding capacity (DHC).

20 . The method according to claim 17 further comprising evaluating a battery heat exchanger fin according to a filter test procedure to determine the filtration characteristic.

21 . The method according to claim 17 further comprising:
providing the filter upstream of the battery.

22 . A method for managing a battery temperature in a vehicle comprising:
providing a filter upstream of a battery liquid cooling system with a restrictive flow passage; setting a filtration transfer function of the filter based on a filtration characteristic of the restrictive flow passage.

23 . The method according to claim 22 wherein the filtration characteristic comprises a filtration efficiency.

24 . The method according to claim 23 wherein the filtration efficiency is 90 percent for a particle size and the restrictive flow passage has a filtration efficiency of 100 percent at the particle size.

25 . The method according to claim 22 wherein the filtration characteristic comprises a dirt holding capacity (DHC).

26 . The method according to claim 22 further comprising evaluating the restrictive flow passage according to a filter test procedure to determine the filtration characteristic.

27 . A battery thermal management system comprising:
a battery having a plurality of battery cells; a plurality of heat exchanger fins, one of the fins disposed between each of the battery cells for providing a liquid coolant to regulate temperature; and a filter located upstream of the battery having a filtration transfer function based on a filter characteristic of the fins.

28 . The battery thermal management system according to claim 27 wherein the filtration characteristic comprises a filtration efficiency.

29 . The battery thermal management system according to claim 27 wherein the filtration characteristic comprises a dirt holding capacity (DHC).

30 . The battery thermal management system according to claim 29 wherein the filtration transfer function comprises a filtration efficiency of 90 percent for a particle size and the heat exchanger has a filtration efficiency of 100 percent at the particle size.

31 . The battery thermal management system according to claim 27 further comprising a pump for circulating the liquid coolant, wherein the filter is located downstream of a pump.

32 . The battery thermal management system according to claim 27 wherein the filter is a high-pressure bypass filter.

33 . The battery thermal management system according to claim 27 wherein each of the heat exchanger fins has a restrictive flow passage and the filtration transfer function of the restrictive flow passages is based on evaluating the heat exchanger fins according to a filter test procedure ISO16889.

34 . The battery thermal management system according to claim 27 wherein the battery cells, the heat exchanger fins and the filter are located in a first thermal loop that is selectively in thermal communication with a second thermal loop which provides thermal control for a vehicle system other than the battery.

35 . The battery thermal management system according to claim 27 wherein the liquid coolant is one of water or glycol.

36 . The method according to claim 18 wherein the filtration efficiency is 90 percent for a particle size and the heat exchanger has a filtration efficiency of 100 percent at the particle size.

Assignees

• Ford Global Tech Llc

Inventors

• Pekarsky Lev
• Fabricatore David

Classifications

• B60H1/00278 Primary

  for the battery · CPC title

• H01M10/6557

  arranged between the cells · CPC title

• H01M10/66

  Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells · CPC title

• H01M10/663

  the system being an air-conditioner or an engine · CPC title

• B60H2001/00307

  Component temperature regulation using a liquid flow · CPC title