US 11,214,240 B2Granted

Electric oil pump system

AssigneesHyundai Motor Company, Kia Motors Corporation

InventorsGyeong Cheol Kim, Sang Hyun Jeong, Jong Hyun Kim, Hak Sung Lee, Seong Hwan Kim, Dae Won Yang, Seung Jae Kang

Life of this patent

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Abstract

An electric oil pump system allows the cooling of an electric oil pump (EOP) and an oil pump controller (OPU) to be performed efficiently in the vehicle equipped with the electric oil pump. An electric oil pump of the system includes a pumping part that is operated by power of a motor to suction and direct pressurized oil. An oil pump controller operates the electric oil pump. A water-cooled cooling apparatus cools the oil pump controller using coolant and an oil-cooled cooling apparatus cools the electric oil pump using oil. The coolant of the water-cooled cooling apparatus and the oil of the oil-cooled cooling apparatus pass through a heat exchanger and as the coolant and oil pass therethrough, heat exchange is achieved.

Claims10

Dependent claims

An electric oil pump system, comprising:

an electric oil pump in which a pumping part is operated by power of a motor to suction and direct pressurized oil;
an oil pump controller configured to operate the electric oil pump;
a water-cooled cooling apparatus configured to cool the oil pump controller using coolant;
an oil-cooled cooling apparatus configured to cool the electric oil pump using oil;
and
a heat exchanger, wherein the coolant of the water-cooled cooling apparatus and the oil of the oil-cooled cooling apparatus pass through the heat exchanger and heat exchange is achieved as the coolant and oil pass therethrough,
wherein the oil-cooled cooling apparatus includes a flow path for cooling the motor,
wherein the heat exchanger is disposed between the oil pump controller and the electric oil pump, and
wherein the oil pump controller controls the motor.

6 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/209,552Filed 4 Dec 2018
Priority: KR 10-2018-006146430 May 2018
Published: US 2019/0367004 A15 Dec 2019
Granted: 4 Jan 2022
Term ends: Not estimatedThe source records don’t support an estimate.

Classification28 codes

B60K 6/387
Characterised by the driveline clutches: actuated clutches, i.e. clutches engaged or disengaged by electric, hydraulic or mechanical actuating means
B60W 10/30
Conjoint control of vehicle sub-units of different type or different function: including control of auxiliary equipment, e.g. air-conditioning…
B60K 6/26
Characterised by apparatus, components or means specially adapted for HEVs: characterised by the motors or the generators
B60K 6/48
Characterised by the architecture of the hybrid electric vehicle: parallel type