18595536. ELECTRIC VEHICLE simplified abstract (TOYOTA JIDOSHA KABUSHIKI KAISHA)
Contents
ELECTRIC VEHICLE
Organization Name
TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor(s)
Takeshi Kuwahara of Toyota-shi (JP)
Shinichiro Suenaga of Nagoya-shi (JP)
Ryo Kawamoto of Okazaki-shi (JP)
ELECTRIC VEHICLE - A simplified explanation of the abstract
This abstract first appeared for US patent application 18595536 titled 'ELECTRIC VEHICLE
The patent application describes an electric vehicle with various components to ensure efficient operation and longevity of the electric motor and power transmission device.
- Electric motor
- Power transmission device
- Electric oil pump for oil discharge
- Cooling oil passage for motor cooling
- Lubricating oil passage for device lubrication
- Branch portion for oil distribution
- Oil cooler in the cooling oil passage
- Control valve in the branch portion for oil flow rate control
Potential Applications: - Electric vehicles - Automotive industry - Sustainable transportation
Problems Solved: - Efficient cooling and lubrication of electric motor and power transmission device - Control of oil flow rate based on temperature for optimal performance
Benefits: - Improved efficiency and longevity of electric vehicle components - Enhanced performance and reliability - Reduced maintenance costs
Commercial Applications: Title: "Innovative Oil Cooling and Lubrication System for Electric Vehicles" This technology can be utilized in the production of electric vehicles to enhance their performance and reliability, making them more attractive to consumers looking for sustainable transportation options. The market implications include increased demand for electric vehicles with advanced cooling and lubrication systems.
Questions about the technology: 1. How does the control valve in the branch portion optimize oil flow rate based on temperature? - The control valve adjusts the ratio of oil distributed to the lubricating oil passage depending on the temperature of the oil, ensuring optimal performance of the electric motor and power transmission device. 2. What are the key advantages of having separate cooling and lubricating oil passages in an electric vehicle? - Having separate passages allows for specialized cooling and lubrication of different components, leading to improved efficiency and longevity of the electric vehicle.
Original Abstract Submitted
An electric vehicle includes: (a) an electric motor; (b) a power transmission device to which the electric motor is connected; (c) an electric oil pump configured to discharge an oil; (d) a cooling oil passage configured to supply the oil to the electric motor for cooling the electric motor; (e) a lubricating oil passage configured to supply the oil to the power transmission device for lubricating the power transmission device; (f) a branch portion configured to distribute the oil between the cooling oil passage and the lubricating oil passage; (g) an oil cooler provided in the cooling oil passage; and (h) a control valve which is provide in the branch portion and which is configured to make a ratio of a flow rate of the oil distributed to the lubricating oil passage higher when a temperature of the oil is low than when the temperature of the oil is high.
