Honda Motor Co., Ltd.

Munehiro Matsubara

Yuta Ito

Hiroyuki Matsuoka

Yuki Endo

Toru Nakamura

Yoshito Tsukamoto

Tadanobu Aoki

An electric conduction component fixation structure includes: a fixed member which has electrically conductive properties and on which an electric conduction component is arranged; and a press member that presses and fixes the electric conduction component, which is arranged on the fixed member, to the fixed member, wherein the fixed member includes a pressed surface that is pressed when the electric conduction component is fixed by the press member, and the pressed surface is covered by a rustproof coating film having a plurality of metal flakes which are layered and a binder which joins the plurality of metal flakes.

Electric conduction component fixation structure

A magnet temperature estimation device for a rotating electric machine includes a rotating electric machine configured with a rotor having a magnet and a stator having a coil, a coolant supply part configured to supply a coolant flowing from the stator toward the rotor, and a magnet temperature calculation part configured to calculate a temperature of the magnet using a temperature of a coolant that receives heat from the coil.

Magnet temperature estimation device for rotating electric machine and magnet temperature estimation method for rotating electric machine

A winding temperature estimation device for a rotating electric machine includes a rotating electric machine including a stator, which has a winding, and a rotor, a coolant supply part configured to supply a coolant, a temperature sensor configured to detect a temperature of the coolant, a heat reduction amount calculation part configured to calculate a heat reduction amount of the winding using the temperature of the coolant and a heat resistance between the coolant and the winding, a heating value calculation part configured to calculate a heating value due to a loss of the winding, and a winding temperature calculation part configured to calculate a temperature of the winding using the heat reduction amount from the winding and the heating value due to the loss of the winding.

Rotating electric machine winding temperature estimation device and rotating electric machine winding temperature estimation method

A temperature estimation apparatus for a rotating electric machine includes a coolant dissipator, a heat dissipation amount calculator, a coolant temperature calculator, and a temperature calculator. The coolant dissipator is to cool down a coolant by heat exchange with a cooling air outside a rotating electric machine. The heat dissipation amount calculator is to calculate heat dissipation amount of the coolant in the coolant dissipator based on a physical quantity correlating with air speed of the cooling air and a physical quantity correlating with flow rate of the coolant. The coolant temperature calculator is to calculate, based on the heat dissipation amount, temperature of the coolant that has passed through the coolant dissipator. The temperature calculator is to calculate, based on the temperature of the coolant, temperature of the rotating electric machine which the coolant cool down.

Growing community of inventors

Shimotsuga-gun, Japan

Munehiro Matsubara