Toyota Jidosha Kabushiki Kaisha

Masashi Shinoda

Kensei Hata

Akiko Nishimine

Naoya Okamoto

Shotaro Kato

Yoshio Yamashita

Nobumoto Ohashi

Taro Aoyama

Teruhiko Miyake

Naoki Takeuchi

Hajime Takagawa

Yuki Haba

Koki Uno

Koji Nakayama

So Okita

A cooling system for a power transmission unit that can supply oil properly to a differential mechanism and motors. The cooling system comprises: a first branch passage to supply the oil to the differential mechanism; a second branch passage to supply the oil to the first motor; and a third branch passage to supply the oil to the second motor. The second branch passage includes a first oil feeding section that supplies the oil to a coil of the first motor, and a second oil feeding section that supplies the oil f to a core of the first motor. The third branch passage includes a third oil feeding section that supplies the oil to a coil of the second motor, and a fourth oil feeding section that supplies the oil to a core of the second motor.

Cooling system for power transmission unit

The influenced of condensed water on an EGR device is alleviated. A device () that controls a cooling system including adjusting means for being able to adjust a circulation amount of coolant in a first flow passage, including an engine cooling flow passage, an EGR cooling flow passage and a radiator flow passage, and a second flow passage, including the engine cooling flow passage, the EGR cooling flow passage and a bypass flow passage and not including the radiator flow passage, includes: measuring means for measuring a temperature of the coolant; limiting means for limiting circulation of the coolant at starting an internal combustion engine; and control means for circulating the coolant preferentially through the second flow passage via control over the adjusting means based on the measured temperature in a period in which circulation of the coolant is limited.

Control device for cooling system

Growing community of inventors

Susono, Japan

Masashi Shinoda