COOLING SYSTEM OF VEHICLE HAVING MOTOR

• US 20140166259A1
• Filed: 10/28/2013
• Published: 06/19/2014
• Est. Priority Date: 12/17/2012
• Status: Abandoned Application

• Current Assignee: Hyundai Motor Company (Hyundai Motor Group)
• Original Assignee: Hyundai Motor Company (Hyundai Motor Group)
• Inventors: LEE, Jin-Hun, LEE, Seung Yong
• Application Number:
  US14/065,045
• Publication Number:
  US 20140166259A1
• Time in Patent Office: Days
• US Class Current: 165/202
• CPC Class Codes: F01P 2050/24 Hybrid vehicles
• CPC Class Codes: F01P 3/20 Cooling circuits not specific to a single part of engine or machine F01P3/22 takes precedence

Abstract

A cooling system of vehicle having a motor includes: a mainline that provides a coolant flow channel; a radiator that is installed at one side of the mainline; a pump that is installed at the other side of the mainline; a first branch line and a second branch line that are branched from the main line; a first heat emitter and second heat emitter that are installed at the first branch line and the second branch line, respectively; and a control valve that supplies a coolant necessary for the first heat emitter and the second heat emitter by controlling flow of a coolant flowing from the mainline to the first branch line or the second branch line.

Therefore, by controlling a quantity of each coolant that is supplied to a first heat emitter including an inverter and a motor and a second heat emitter including a DC converter, a capacity of a coolant pump or an operation load can be reduced and thus entire cooling efficiency can be improved.

Claims

1. A cooling system of vehicle having a motor, the cooling system comprising:

a mainline configured to provide a coolant flow channel;

a radiator installed at a first side of the mainline;

a pump installed at a second side of the mainline;

a first branch line and a second branch line that branch from the main line;

a first heat emitter installed at the first branch line, and a second heat emitting installed at the second branch line; and

a control valve configured to supply a coolant necessary for the first heat emitter and the second heat emitter by controlling flow of a coolant flowing from the mainline to at least one of the first branch line or the second branch line.

2. The cooling system of claim 1, wherein the first heat emitter is an inverter or a motor.

3. The cooling system of claim 2, wherein the second heat emitter is a bi-directional high DC converter or a low DC converter.

4. The cooling system of claim 1, wherein the control valve is configured to supply the same coolant flux to the first branch line and the second branch line in a normal operation condition.

5. The cooling system of claim 4, wherein the control valve does not supply a coolant to the first branch line and supplies a coolant to the second branch line in an idle state or a vehicle stop state.

6. The cooling system of claim 1, further comprising a first temperature sensor configured to sense a temperature of the first heating element and a second temperature sensor configured to sense a temperature of the second heating element,

wherein the control unit is configured to:

sense a first temperature and a first temperature rising rate of the first heating element and sense a second temperature and a second temperature rising rate of the second heating element, and

variably supply a coolant to the first branch line and the second branch line through the control valve according to the first temperature, the first temperature rising rate, the second temperature, and the second temperature rising rate.

7. The cooling system of claim 1, wherein the control valve is a 3-way valve installed at a point that is branched to the first branch line and the second branch line from the mainline.

8. The cooling system of claim 1, wherein the control valve comprises:

a first control valve installed at the first branch line; and

a second control valve installed at the second branch line.