US 2026/0160198 A1 · COOLING SYSTEM FOR A HYBRID VEHICLE AND A CONTROL METHOD THEREOF

Abstract

A cooling system for a hybrid vehicle may include: a cooling module disposed on a front side of a vehicle and including a cooling fan; an engine cooling apparatus configured to cool an engine and including a first line connected to the cooling module and through which a first coolant flows; an intercooler provided in the engine; and an electrical component cooling apparatus including a water pump and a second line through which a second coolant flows. An electrical component, the cooling module and the water pump are connected through the second line. The cooling system further includes a controller to control the operation of the cooling fan and the water pump, and the intercooler is provided on a branch line connected to the second line to circulate the second coolant and disposed in parallel with the electrical component through the branch line.

Claims17

Dependent claims

A cooling system for a hybrid vehicle, comprising:

a cooling module comprising a cooling fan;
an engine cooling apparatus comprising a first line through which a first coolant flows, wherein the first line connects the cooling module and an engine of the hybrid vehicle;
an intercooler provided in the engine;
an electrical component cooling apparatus comprising:
a water pump, and
a second line connected to the cooling module, the water pump, and an electrical component, and configured to allow a second coolant to flow through the second line;
and
a controller configured to control an operation of the cooling fan and the water pump,
wherein the intercooler is disposed on a branch line that is connected to the second line for circulation of the second coolant, and
wherein the intercooler is disposed in parallel with the electrical component via the branch line.

7 more elements

A control method for a cooling system of a hybrid vehicle, where the hybrid vehicle comprises an engine, an engine cooling apparatus provided on a first line through which a first coolant flows, an electrical component cooling apparatus comprising a water pump provided on a second line through which a second coolant flows, an electrical component disposed on the second line, and an intercooler disposed in parallel with the electrical component through a branch line connected to the second line, the control method comprising:

converting, by a controller, requested RPMs of the water pump and operation duties of a cooling fan based on data detected from a data detector during starting and operation of the hybrid vehicle;
driving the water pump and the cooling fan by selecting a maximum requested RPM and a maximum operation duty, among the converted requested RPMs of the water pump and the converted operation duties of the cooling fan;
and
determining, by the controller, whether an air temperature and a temperature of the electrical component are in a range of upper and lower allowable temperatures based on predetermined reference temperatures and data detected in real time from the data detector, and then controlling the RPM of the water pump and the operation duty of the cooling fan.

1 more element

Dependencies are inferred from the claim text.

Cooling system for a hybrid vehicle and a control method thereof

Life of this patent

Cooling system for a hybrid vehicle and a control method thereof

Life of this patent

Abstract

Claims17