Jtekt Corporation

Toyota Jidosha Kabushiki Kaisha

Yasunari Saito

Naoki Sawada

Tomoaki Kato

Go Nagayama

Yoshihiro Ikushima

Kotaro Sarai

Toshimi Hara

Hiroyuki Ando

Mikiharu Oyabu

Shun Ohno

Masakatsu Kani

Hideyuki Saito

Kazutaka Matsukawa

Masahito Uesaka

Tomoyuki Nanba

Kazuhiro Fukushima

Hirotake Ito

In a manufacturing method for a sliding member, a nitrogen diffusion layer, a nitrogen compound layer, and an oxidation layer are formed by executing a first step of cooling a workpiece formed of a steel material after heating the workpiece in an atmosphere containing ammonia at 570 to 660&#xb0; C., a second step of performing, subsequently to the first step, tempering while pressurizing a front surface side of the workpiece, and a third step of performing, subsequently to the second step, steam treatment of heating the workpiece in a steam atmosphere.

Sliding member, clutch plate, and manufacturing methods for the same

A driving force transmission control apparatus includes: a driving force transmission device that includes an electromagnetic clutch mechanism configured to generate a frictional force between clutch plates by energization of an electromagnetic coil and transmits a driving force by actuating the electromagnetic clutch mechanism; and a control device that controls the driving force transmission device. The control device includes a storage unit storing a hysteresis value representing the difference between a current value required to transmit a predetermined torque when an energization current to the electromagnetic coil is gradually increased and a current value required to transmit the predetermined torque when the energization current is gradually reduced, a torque command value calculator that calculates a torque command value, and a current command value calculator that calculates a current command value representing a target value of a current to be supplied to the electromagnetic coil based on the torque command value and the hysteresis value.

Driving force transmission control apparatus

A driving force transmission apparatus includes: a housing having an inner peripheral spline portion; an inner shaft having an outer peripheral spline portion; a main clutch including first outer and inner clutch plates respectively engaged with the inner and outer peripheral spline portions; a cam mechanism generating pressing force for pressing the main clutch by relatively rotating a pair of cam members; and an electromagnetic clutch mechanism including an armature engaged with the inner peripheral spline portion and applying rotation force to the cam mechanism for relatively rotating the cam members through energization of an electromagnetic coil. An end face facing the armature is formed in the inner peripheral spline portion between a first region engaged with the first outer clutch plate and a second region engaged with the armature. Movement of the armature toward the first region is regulated by contact of the armature with the end face.

Driving force transmission apparatus

Growing community of inventors

Chiryu, Japan

Yasunari Saito