Thermal management system for vehicle

Patent metadata

Field	Value
Publication number	US-9878594-B2
Application number	US-201314423666-A
Country	US
Kind code	B2
Filing date	Aug 23, 2013
Priority date	Aug 28, 2012
Publication date	Jan 30, 2018
Grant date	Jan 30, 2018

Abstract

A thermal management system for a vehicle includes a first pump and a second pump, temperature adjustment target devices, heat exchangers, numerous flow paths including a first pump arrangement flow path, a second pump arrangement flow path, and device arrangement flow paths, a first switching portion for allowing the numerous flow paths to selectively communicate with each other, a second switching portion for allowing the numerous flow paths to selectively communicate with each other, and a reserve tank for storing therein heat medium. The reserve tank is configured to set the pressure of the liquid surface of the stored heat medium to a predetermined pressure (e.g., atmospheric pressure), and is connected to one flow path of the numerous flow paths.

First claim

What is claimed is:

1. A thermal management system for a vehicle, comprising
a first pump and a second pump sucking and discharging a liquid heat medium;
a temperature adjustment target device having a temperature adjusted by the heat medium;
a heat exchanger exchanging heat with the heat medium;
numerous flow paths for circulation of the heat medium, including a first pump arrangement flow path in which the first pump is disposed, a second pump arrangement flow path in which the second pump is disposed, and a device arrangement flow path in which at least one of the temperature adjustment target device and the heat exchanger is disposed;
a first switching portion connected to one end side of each of the numerous flow paths, and adapted to selectively establish communication between the numerous flow paths; and
a second switching portion connected to the other end side of each of the numerous flow paths, and adapted to selectively establish communication between the numerous flow paths; and
a reserve tank storing the heat medium therein, wherein
the first switching portion and the second switching portion are operated such that at least one of the numerous flow paths communicates with the first pump arrangement flow path to form a first heat medium circuit, and that at least another one of the numerous flow paths communicates with the second pump arrangement flow path to form a second heat medium circuit, and
the reserve tank is configured to set a pressure of a liquid surface of the heat medium stored to a predetermined pressure, and is connected to only one of the numerous flow paths.

2. A thermal management system for a vehicle, comprising:
a first pump, a second pump, and a third pump sucking and discharging a liquid heat medium;
a temperature adjustment target device having a temperature adjusted by the heat medium;
a heat exchanger exchanging heat with the heat medium;
numerous flow paths for circulation of the heat medium, including a first pump arrangement flow path in which the first pump is disposed, a second pump arrangement flow path in which the second pump is disposed, and a device arrangement flow path in which at least one of the temperature adjustment target device and the heat exchanger is disposed;
a first switching portion connected to one end side of each of the numerous flow paths, and adapted to selectively establish communication between the numerous flow paths; and
a second switching portion connected to the other end side of each of the numerous flow paths, and adapted to selectively establish communication between the numerous flow paths;
a reserve tank storing the heat medium therein;
a circulation flow path provided with the third pump, and allowing the heat medium to circulate therethrough; and
at least one connection flow path connecting at least one of the numerous flow paths to the circulation flow path, wherein
the first switching portion and the second switching portion are operated such that at least one of the numerous flow paths communicates with the first pump arrangement flow path to form a first heat medium circuit, and that at least another one of the numerous flow paths communicates with the second pump arrangement flow path to form a second heat medium circuit, and
the reserve tank is configured to set a pressure of a liquid surface of the heat medium stored to a predetermined pressure, and is connected to the circulation flow path.

3. A thermal management system for a vehicle, comprising:
a first pump and a second pump sucking and discharging a liquid heat medium;
a temperature adjustment target device having a temperature adjusted by the heat medium;
a heat exchanger exchanging heat with the heat medium to change a temperature of the heat medium;
numerous flow paths for circulation of the heat medium, including a first pump arrangement flow path in which the first pump is disposed, a second pump arrangement flow path in which the second pump is disposed, and a device arrangement flow path in which at least one of the temperature adjustment target device and the heat exchanger is disposed;
a first switching portion connected to one end side of each of the numerous flow paths, and adapted to selectively establish communication between the numerous flow paths; and
a second switching portion connected to the other end side of each of the numerous flow paths, and adapted to selectively establish communication between the numerous flow paths;
one or two reserve tanks connected to a predetermined flow path of the numerous flow paths, and storing therein the heat medium; and
a pressure adjustment valve that opens when an internal pressure of the predetermined flow path or an internal pressure of the reserve tank exceeds a predetermined range, wherein
the first switching portion and the second switching portion are operated such that at least one of the numerous flow paths communicates with the first pump arrangement flow path to form a first heat medium circuit, and that at least another one of the numerous flow paths communicates with the second pump arrangement flow path to form a second heat medium circuit.

4. A thermal management system for a vehicle, comprising:
a first pump, a second pump, and a third pump sucking and discharging a liquid heat medium;
a temperature adjustment target device having a temperature adjusted by the heat medium;
a heat exchanger exchanging heat with the heat medium to change a temperature of the heat medium;
numerous flow paths for circulation of the heat medium, including a first pump arrangement flow path in which the first pump is disposed, a second pump arrangement flow path in which the second pump is disposed, and a device arrangement flow path in which at least one of the temperature adjustment target devices and the heat exchanger is disposed;
a first switching portion connected to one end side of each of the numerous flow paths, and adapted to selectively establish communication between the numerous flow paths;
a second switching portion connected to the other end side of each of the numerous flow paths, and adapted to selectively establish communication between the numerous flow paths;
a circulation flow path provided with the third pump, and allowing the heat medium to circulate therethrough;
at least one connection flow path connecting at least one of the numerous flow paths to the circulation flow path;
one or two reserve tanks connected to a predetermined flow path of the numerous flow paths and the circulation flow path, and adapted to store therein the heat medium; and
a pressure adjustment valve that opens when an internal pressure of the predetermined flow path or an internal pressure of the reserve tank exceeds a predetermined range, wherein
the first switching portion and the second switching portion are operated such that at least one of the numerous flow paths communicates with the first pump arrangement flow path to form a first heat medium circuit, and that at least another one of the numerous flow paths communicates with the second pump arrangement flow path to form a second heat medium circuit.

5. The thermal management system for a vehicle according to claim 1 , further comprising:
a communication flow path for communication between the first heat medium circuit and the second heat medium circuit.

6. The thermal management system for a vehicle according to claim 5 , further comprising:
a switching target flow path that allows the heat medium to circulate therethrough, the switching target flow path being connected to the communication flow path and the second switching portion.

7. The thermal management system for a vehicle according to claim 6 , wherein
the switching target flow path is provided with a heat medium circulation d

Assignees

• Denso Corp

Inventors

• Enomoto Norihiko
• Kakehashi Nobuharu
• Nishikawa Michio
• Makihara Masamichi
• Kuwayama Kazutoshi
• Katoh Yoshiki
• Sugimura Kengo

Classifications

• B60L2240/662

  Temperature · CPC title

• B60L2240/525

  Temperature of converter or components thereof · CPC title

• B60L2240/425

  Temperature · CPC title

• B60K11/02

  with liquid cooling · CPC title

• B60H1/00878

  the components being temperature regulating devices · CPC title