US 2026/0160197 A1 · COOLING SYSTEM FOR A HYBRID VEHICLE AND A CONTROL METHOD THEREOF

Abstract

A cooling system is for a hybrid vehicle with an engine and an electrical component. The system includes: a cooling module having a cooling fan: an engine cooling apparatus having a first line connected to the cooling module and the engine and through which a first coolant flows; an intercooler ; an electrical component cooling apparatus having a water pump and a second line connected to the cooling module, the electrical component, and the water pump and through which a second coolant flows; and a controller to control operation of the cooling fan and the water pump. The intercooler circulates the second coolant and is disposed in series with the electrical component. The electrical component cooling apparatus includes a bypass line connected to the second line downstream of the cooling module and to the second line upstream of the intercooler, based on a flow direction of the second coolant.

Claims16

Dependent claims

A cooling system for a hybrid vehicle having an engine and an electrical component, the cooling system comprising:

a cooling module including a cooling fan;
an engine cooling apparatus including a first line connected to the cooling module and the engine and through which a first coolant flows;
an intercooler;
an electrical component cooling apparatus including a water pump and a second line connected to the cooling module, the electrical component, and the water pump and through which a second coolant flows;
and
a controller electrically connected to the cooling fan and the water pump so as to control operation of the cooling fan and the water pump,
wherein the intercooler is connected to the second line to circulate the second coolant and is disposed in series with the electrical component, and
wherein the electrical component cooling apparatus further includes a bypass line having a first end connected to the second line at a downstream end of the cooling module and a second end connected to the second line at an upstream end of the intercooler, based on a flow direction of the second coolant.

5 more elements

A control method of a cooling system for a hybrid vehicle that includes an engine, an electrical component, an engine cooling apparatus having a first line connected to the engine and through which a first coolant flows, an electrical component cooling apparatus having a water pump connected to a second line through which a second coolant flows, and an intercooler connected to the second line and disposed in series with the electrical component, and the control method comprising procedures:

(A) determining, by a controller, an appropriate revolutions per minute (RPM) of the water pump and an appropriate operation duty of a cooling fan, based on data detected from a data detector during starting and operation of the vehicle;
(B) driving the water pump and the cooling fan by selecting a maximum appropriate RPM and a maximum appropriate operation duty among an RPM range of the water pump and an operation duty range of the cooling fan determined through the procedure (A);
and
(C) determining, by the controller, whether an air temperature and a temperature of the electrical component are in an allowable temperature range based on 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

Claims16