Dual loop liquid cooling of integrated electric drivetrain
US10457135B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jun 8, 2018 |
| Grant date | Oct 29, 2019 |
| Priority date | — |
| Expiry date | Jun 8, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/64
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Provided herein are systems and methods for cooling an electric drivetrain of an electric vehicle. The electric drivetrain can include an inverter, a gearbox and a motor. A first cooling system can use ethylene glycol and water (EGW) based coolant, and can include an EGW coolant loop to distribute the EGW based coolant to remove heat from a cold plate of the inverter, a housing of the gearbox, and a housing of the motor. A second cooling system can use an oil based coolant, and can include an oil coolant loop to distribute the oil based coolant to remove heat from internal components and the housing of the gearbox, and to remove heat from internal components and the housing of the motor. The second cooling system can include an oil coolant pump to control a flow of the oil based coolant through the oil coolant loop.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.