Device and Method for Controlling the Temperature of an Electric Energy Store of a Vehicle

Patent metadata

Field	Value
Publication number	US-2016351982-A1
Application number	US-201515114742-A
Country	US
Kind code	A1
Filing date	Jan 23, 2015
Priority date	Jan 27, 2014
Publication date	Dec 1, 2016
Grant date	—

Abstract

A device for controlling a temperature of an electric energy store of a vehicle includes a first flow path which opens into a housing of the electric energy store and has an air conditioning system for air-conditioning a passenger compartment of the vehicle. The air conditioning system includes a heating and/or cooling device and a second flow path which leads from the at least one heating and/or cooling device into the passenger compartment. The two flow paths are connected in the device such that an airflow in one of the two flow paths is fluidically independent of an airflow in the respective other of the two flow paths. The device has a heat exchanger which is connected in the two flow paths for a pure heat exchange between the air flows in the two flow paths.

First claim

1 . A device for controlling a temperature of an electric energy store of a vehicle, comprising:
a first flow path opening into a housing of the electric energy store; a ventilation system for temperature-controlled ventilation of a passenger compartment of the vehicle, the ventilation system having a heating and/or cooling device and a second flow path leading from the at least one heating and/or cooling device into the passenger compartment; and a heat exchanger connected in the first and the second flow paths, wherein the two flow paths are connected in the device such that an airflow in, in each case, one of the two flow paths is fluidically independent of an airflow in the respective other of the two flow paths, and wherein the heat exchanger is configured for pure heat exchange between the airflows in the two flow paths.

2 . The device as claimed in claim 1 , further comprising:
a supply air inlet for air from a surroundings of the vehicle, the supply air inlet configured to divide an inflow into a first partial flow and a second partial flow, wherein the first partial flow is fed to the first flow path, and wherein the second partial flow is fed to an inlet of the ventilation system.

3 . The device as claimed in claim 1 , wherein the heating and/or cooling device has a cooling compressor and/or a stationary-mode heater.

4 . The device as claimed in claim 1 , further comprising:
a first temperature regulating device having a temperature sensor configured to determine a temperature of the electrical energy store and an actuator element configured to change a throughflow of the airflow in the first flow path.

5 . The device as claimed in claim 4 , wherein the ventilation system has a second temperature regulating device having a temperature sensor configured to determine a temperature in the passenger compartment and an actuator element configured to change a throughflow of the airflow in the second flow path.

6 . The device as claimed in claim 2 , further comprising:
an air discharge duct configured to discharge air from the housing of the electrical energy store, wherein the ventilation system has a second air discharge duct configured to discharge air from the passenger compartment, through which air discharge ducts respective waste air can be discharged into the surroundings of the vehicle.

7 . The device as claimed in claim 6 , wherein the ventilation system has a return flow duct, connecting the second air discharge duct to the inlet of the ventilation system, for an air circulation mode of the ventilation system.

8 . A vehicle having a passenger compartment, an electric energy store, and a device for controlling a temperature of the electric energy store, the device comprising:
a first flow path leading to the electric energy store; a ventilation system for temperature-controlled ventilation of the passenger compartment, the ventilation system having a heating and/or cooling device and a second flow path leading to the passenger compartment; and a heat exchanger connected in both flow paths, wherein the first flow path opens into a housing of the electric energy store, wherein the two flow paths are connected in the device such that an airflow in, in each case, one of the two flow paths is fluidically independent of an airflow in the respective other of the two flow paths, and wherein the heat exchanger is configured for pure heat exchange between the airflows in the two flow paths.

9 . A method for controlling a temperature of an electric energy store of a vehicle with a ventilation system for temperature-controlled ventilation of a passenger compartment of the vehicle, comprising:
feeding a temperature-controlled airflow to the electric energy store by a first flow path, the first flow path leading through a heat exchanger; feeding an airflow to the passenger compartment via a second flow path with the ventilation system, the second flow path leading through the heat exchanger; and temperature controlling the airflow which is fed to the energy store in the heat exchanger by a transfer of heat between the airflows.

10 . The method as claimed in claim 9 , further comprising:
dividing a supply airflow of air from a surroundings of the vehicle in a supply air inlet into a first partial flow and a second partial flow; feeding the first partial flow to the first flow path; and feeding the second partial flow to the ventilation system.

Assignees

• Bosch Gmbh Robert
• Samsung Sdi Co Ltd

Inventors

• Reitzle Alexander
• Hore Sarmimala
• Hald Markus

Classifications

• B60L2240/545

  Temperature · CPC title

• B60H2001/003

  Component temperature regulation using an air flow · CPC title

• B60L58/27

  by heating · CPC title

• B60H1/00278

  for the battery · CPC title

• B60L58/26

  by cooling · CPC title