Thermostatic assembly for power members of an electric vehicle and the operating process thereof

• US 9,219,295 B2
• Filed: 09/15/2012
• Issued: 12/22/2015
• Est. Priority Date: 09/15/2012
• Status: Active Grant

• Current Assignee: Automotive Research & Testing Center
• Original Assignee: Automotive Research & Testing Center
• Inventors: Weng, Kuo-Liang, Lin, Po-Hsu, Cheng, Yen-Ting
• Primary Examiner(s): Bradford, Jonathan
• Application Number:
  US13/621,239
• Publication Number:
  US 20140076979A1
• Time in Patent Office: 1,193 Days
• Field of Search: 622/43, 622/44
• US Class Current: 1/1
• CPC Class Codes: B60H 1/00278 for the battery arrangement of batteries B60R16/04
• CPC Class Codes: B60L 1/003 to auxiliary motors, e.g. for pumps, compressors
• CPC Class Codes: B60L 58/26 by cooling
• CPC Class Codes: G05D 23/1934 each space being provided with one sensor acting on one or more control means
• CPC Class Codes: H01M 10/613 Cooling or keeping cold
• CPC Class Codes: H01M 10/625 Vehicles
• CPC Class Codes: H01M 10/6556 Solid parts with flow channel passages or pipes for heat exchange closed pipes H01M10/6552
• CPC Class Codes: H01M 10/6567 Liquids
• CPC Class Codes: Y02E 60/10 Energy storage using batteries
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries

Abstract

A thermostatic assembly for power members of an electric vehicle includes a pipe set having a main pipe and a recycle pipe, one end of the main pipe connected to one side of the pump, a plurality of temperature-adjusting pipes connected between another end of the main pipe and one end of the recycle pipe, another end of the recycle pipe connected to another side of the pump, a plurality of power members respectively set on the temperature-adjusting pipes, a input change valve set between the main pipe and each temperature-adjusting pipe, a output change valve set between the recycle pipe and each temperature-adjusting pipe, a controller electrically connected to the input change valve, the output change valve and each power member. Under this arrangement, the controller ranks a sequence of the temperature information and defines a sequence of the flow direction of the temperature-adjusting water.

Claims

1. A thermostatic assembly for power members of an electric vehicle comprising:

a pipe set having a main pipe and a recycle pipe, one end of the main pipe connected to one side of a pump, a plurality of temperature-adjusting pipes connected between another end of the main pipe and one end of the recycle pipe, another end of the recycle pipe connected to another side of the pump to form a closed-circuit wherein, a plurality of power members are respectively set on the temperature-adjusting pipes;

an input change valve being set between the main pipe and each temperature-adjusting pipe, an output change valve being set between the recycle pipe and each temperature-adjusting pipe; and

a controller electrically connected to the input change valve, the output change valve and each power member for detecting the temperature of each power member;

wherein the controller ranks a sequence of detected temperature and defines a sequence of a flow direction of temperature-adjusting water according to the temperature of each power member for adjusting the temperature of each power member;

then, when the temperature-adjusting water flows into one temperature-adjusting pipe, the temperature of the respective power member is adjusted by the temperature-adjusting water.

2. The thermostatic assembly for power members of an electric vehicle as claimed in claim 1, wherein the controller has a monitoring unit and a plurality of detecting units;

the monitoring unit is electrically connected to the detecting units, the input change valve and the output change valve;

the detecting units are further respectively connected to the power members for detecting the temperature of each power member and sending a detecting information to the monitoring unit; and

the monitoring unit ranks the sequence of the temperature information and defines the sequence of the flow direction of the temperature-adjusting water according to the temperature of each power member.

3. The thermostatic assembly for power members of an electric vehicle as claimed in claim 1, wherein a first flow control valve is set on each temperature-adjusting pipe at one side of the respective power member;

and a second flow control valve is set on each temperature-adjusting pipe at another side of the respective power member.

4. The thermostatic assembly for power members of an electric vehicle as claimed in claim 1, wherein a heat exchanger and a fan member are both set on the recycle pipe;

the fan member is associated with the heat exchanger; and

the fan member further blows the heat exchanger for cooling the heat exchanger.

5. The thermostatic assembly for power members of an electric vehicle as claimed in claim 1, wherein a connecting pipe is connected between the recycle pipe and a tank.

6. The thermostatic assembly for power members of an electric vehicle as claimed in claim 5, wherein a thermostatic pipe is connected to the tank;

if the temperature of the temperature-adjusting water which flows toward the pump is higher than a normal value, the temperature-adjusting water is transported into the tank, and then the thermostatic pipe reduces the temperature of the temperature-adjusting water before the temperature-adjusting water flows to the pump;

in contrast, if the temperature of the temperature-adjusting water which flows toward the pump is lower than the normal value, the temperature-adjusting water is transported into the tank, and then the thermostatic pipe raises the temperature of the temperature-adjusting water before the temperature-adjusting water flows from the tank to the pump.

7. The thermostatic assembly for power members of an electric vehicle as claimed in claim 1, wherein the controller is further configured to perform an operating process comprising the following steps:

First, defining an upper limit and a lower limit of the temperature of each power member;

wherein a user inputs an upper limit data and a lower limit data of the temperature of each power member into the controller;

second, detecting the temperature of each power member;

wherein the detecting unit of the controller detects the temperature of the power member and the condition of the temperature of the power member;

third, defining a sequence of the flow direction of the temperature-adjusting water;

wherein the controller ranks the priority to cool or heat the power members according to the second step and defines the sequence of the flow direction of the temperature-adjusting water according to the temperature of each power member; and

fourth, defining a temperature-adjusting mode;

wherein the controller defines a temperature-adjusting mode according to the temperature of each power member, the condition of the temperature of the power member and the sequence of the flow direction of the temperature-adjusting water.

8. The thermostatic assembly for power members of an electric vehicle as claimed in claim 7, wherein the controller calculates a flow rate of the temperature-adjusting water flowing toward the members;

the controller controls the first flow control valve and the second flow control valve to adjust the flow rate of the temperature-adjusting water flowing toward the power member.

9. The thermostatic assembly for power members of an electric vehicle as claimed in claim 7, wherein the detecting unit keeps detecting the temperature of the each power member and sending the detecting information to the monitoring unit.

10. The thermostatic assembly for power members of an electric vehicle as claimed in claim 7, wherein the controller ranks the priority to cool or heat the power members and defines the sequence of the flow direction of the temperature-adjusting water according to the temperature of each power member.