Toyota Jidosha Kabushiki Kaisha

Ntn Corporation

Aisin Aw Co., Ltd.

Takeshi Ishida

Kei Sato

Masaki Nanahara

Masakuni Suzuki

Taro Furukubo

Masaya Yamamoto

Masayasu Ohkubo

Tomohiko Miyamoto

Toshiyuki Kobayashi

Hiroshi Nakaoka

Yoshito Tanaka

Fumito Kurata

Kentaro Oya

Kazunori Nimura

Toshinori Okochi

Katsunari Matsumoto

Tsuyoshi Yamasaki

Hirosato Ishigaki

Katsuhiro Kanamori

Takahiro Tsukamoto

Shoichi Tsujimoto

An electric powered vehicle includes: a motor; an inverter configured to convert electric power from a battery to drive the motor; a transmission configured to shift the rotation output of the motor at a variable transmission gear ratio; and a controller configured to control the inverter to control the driving of the motor and to control a change in the shift gear stage, and to perform high surge region avoidance control for changing the gear ratio of the transmission to change a motor rotation speed while maintaining a vehicle speed and changing an operation point outside a high surge region, when the operation point of the motor enters the high surge region where the inverter is controlled by a PWM overmodulation control system, and the high surge region is defined to be equal to or higher than a predetermined rotation speed and equal to or less than predetermined torque.

Electric powered vehicle

In an electromagnetic valve in which a valve body unit is housed in a housing, the unit has a plunger including a groove portion at its cylindrical outer peripheral face. The groove portion extends in the cylinder axis direction and moves in the cylinder axis direction by an electromagnetic force generated by an electromagnetic coil. A rod is secured to the plunger and abuts against a valve seat for opening and closing the valve when the plunger is moved to close the valve and releasing the abutment of the rod against the seat when the plunger is moved to open the valve. A cylindrical sleeve covers the outer peripheral face of the plunger and is configured integrally with the plunger. A communication passage defined by the groove portion of the plunger and the inner peripheral face of the sleeve extends in the cylinder axis direction.

Electromagnetic valve

A first ECU estimates whether the operation of a second actuator has been started, based on the variation of the hydraulic pressure with respect to the flow rate of hydraulic fluid outputted from a first actuator. Even in a case where the operation information of the second actuator is not received, the first ECU sets the control mode to a simultaneous operation mode, when it is estimated that the operation of the second actuator has been started. In the simultaneous operation mode, a controlled parameter of linear control valves on assumption that the second actuator is operating is set up, and a stop instruction of regenerative braking is transmitted to a hybrid ECU.

Brake apparatus

In an expansion sheet for a rotary electric machine that has a thermal expansion property and is to be arranged between a core and a coil conductor in a slot in the rotary electric machine, in which the coil conductor is housed in the slot formed in the core, the expansion sheet has a first surface and a second surface and includes: a first surface-side portion; and a second surface-side portion that is closer to the second surface than the first surface-side portion. An amount of volume increase, caused by heating, of the first surface-side portion is higher than an amount of volume increase, caused by the heating, of the second surface-side portion.

Rotary electric motor stator with thermally expanding layered slot liner

An electromagnetic linear valve which can effectively suppress a self-excited oscillation of a plunger is provided. A resilient memberurges a plungerin a direction in which the core-opposing portionsmove away from a core portionand moves the plungerin a direction in which the core-opposing portionsapproach the core portionin the case where an electric current is supplied to a coilIn the case where no electric current is supplied to the coila radially opposing surface area Sr as a surface area of portions of the core-opposing portionswhich respectively oppose inner peripheral surfaces of recessed portionsis smaller than an axially opposing surface area St as a surface area of portions of the core-opposing portionswhich respectively oppose bottom surfaces of the recessed portionsand the radially opposing surface area Sr becomes larger than the axially opposing surface area St in the case where an electric current is supplied to the coiland the core-opposing portionsapproach most to the core portion

Electromagnetic linear valve

In addition to the pressure for swaging applied when swaging is performed, a pressure in the direction the same as the direction of the holding force exerted by a swaged portion is applied to a pressure receiving edge portion of a bearing holder by the pressure applied by a swaging roller. As a result, the elastic deformation in a circumferential wall portion that is not bent is advanced and the amount of elastic deformation of the bearing holder in the axial direction is reduced, so that it is possible to increase the difference in the amount of elastic deformation between the bearing holder and an outer race. Thus, the axial residual stress in the bearing holder is increased after the swaging is completed, as compared to the case of the ordinary swaging. Accordingly, it is possible to increase the holding force for holding the outer race.

Swaging hold method, swaging hold structure, swaging roller, swaging machine, and swaging hold workpiece

During a caulking process, a pressure is applied to a pressure receiving shoulder portion in the same direction as a direction of a clamping force generated by a caulking portion. The clamping force for holding an outer race can thereby be increased. Also, a pressure receiving surface of the pressure receiving shoulder portion is set higher than an end face. Thus, no pressure resulting from plastic deformation in a direction perpendicular to the direction of the clamping force of the caulking portion is generated. In addition, a groove is formed between the pressure receiving shoulder portion and an end serving as the caulking portion.

Caulked retaining member, method for retaining member by caulking, structure of caulked retaining member, and caulking apparatus

A wheel assembly with an in-wheel motor in which a wheel driving apparatus formed of a motor or a combination of a motor and a reduction mechanism is provided in a wheel, includes an oil supply apparatus that is driven by rotational output of the motor, and an oil supply flow path that leads oil that has been drawn up by the oil supply apparatus to the wheel driving apparatus. The oil supply apparatus is structured so that oil can be supplied to the wheel driving apparatus via the oil supply flow path when the motor is rotating in the forward direction as well as when the motor is rotating in the reverse direction.

Wheel assembly with in-wheel motor

A warning device () includes a horn A () for generating a first horn sound having a volume level satisfying the legal standard and a horn B () for generating a second horn sound satisfying at least one of a condition that it has a volume level equal to or lower than that of the first horn sound and a condition that it is of a type different from that of the first horn sound.

Vehicle warning device

A stainless plate is attached to overlie a magnetic steel plate. An upper portion of a through-hole for inserting a magnet is covered with the stainless plate. Thereby, adhesion between the magnetic steel plate and an end plate with an adhesive for fixing a permanent magnet is prevented. Since an amount of thermal expansion and thermal shrinkage obtained as a result of cooling and heating the stainless plate is closer to an amount of thermal expansion and thermal shrinkage of the magnetic steel plate than to an amount of thermal expansion and thermal shrinkage of the end plate, stress imposed on the magnetic steel plate is reduced as compared to a conventional case. Consequently, fatigue breakdown of the magnetic steel plate due to a difference in linear expansion coefficients of the end plate and the magnetic steel plate is prevented. Thereby, a rotating electric machine having a rotor core portion with improved reliability can be provided.

Rotor of rotating electric machine

A roller bearing including a plurality of rollers which are provided between an outer circumferential surface of an inner member and an inner circumferential surface of an outer member; and a substantially cylindrical roller holder which has a plurality of pockets holding the plurality of rollers, respectively, such that each of the rollers is rotatable about an axis line thereof and which is rotatable around the inner member. A sign of a skew angle of each of the rollers is constant irrespective of how much the each roller is inclined relative to a corresponding one of the pockets in a circumferential direction of the roller holder.

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Toyota, Japan

Takeshi Ishida