Toyota Jidosha Kabushiki Kaisha

Subaru Corporation

Junichi Murase

Yuji Miyoshi

Hiroshi Ienaga

Takuya Horie

Hideki Kubonoya

Shinsuke Aoyagi

Tomomi Yamada

Koseki Sugiyama

Ryo Hasegawa

Shinichiro Noda

Daisuke Hayashi

Yukitoshi Aoyama

Hiroshi Monna

Masamichi Iwama

An electrified vehicle disclosed in the present specification includes: a motor configured to rotate a drive wheel of the electrified vehicle; a sensor configured to detect a motor rotation number that is the number of rotations of the motor; and a control device configured to perform feedback control of the motor rotation number based on a value detected by the sensor. The control device is configured to perform during the feedback control a process of extracting a vibration component in a predetermined frequency band from the value detected by the sensor, a process of calculating an integrated value by integrating the extracted vibration component for a predetermined period, and a process of determining whether the calculated integrated value falls within a predetermined abnormal range.

Electrified vehicle

A vehicle includes a main motor for traveling and an electronic control unit that controls the main motor. The electronic control unit is configured to: extract, from time series data of a rotation speed of the main motor, vibration data in a predetermined frequency band that includes resonance frequency of a drive system that includes the main motor; lower an upper limit value of output torque of the main motor from a normal upper limit value to a first upper limit value lower than the normal upper limit value when magnitude of vibration obtained from the extracted vibration data exceeds a first threshold value; and lower the upper limit value of output torque of the main motor to a second upper limit value lower than the first upper limit value when the magnitude of the vibration exceeds a second threshold value larger than the first threshold value.

Vehicle

A brake control device for a vehicle includes: a motor connected to wheels; a hydraulic brake that generates a friction braking force based on frictional contact with a brake rotor that integrally rotates with the wheels; a controller that performs coordination control of regenerative brake control, in which a regenerative power generation is performed by the motor on a basis of rotation of the wheels to apply a regenerative braking force to the wheels, and hydraulic brake control, in which the hydraulic brake is operated; and a battery that exchanges power with the motor. Further, in a case where a temperature of the brake rotor is higher than a predetermined temperature when input to the battery is restricted in a state where there is a deceleration request, the controller reduces the friction braking force, and performs the regenerative brake control while power is consumed by an electric device.

Brake control device for vehicle

A control device for an internal combustion engine including a turbocharger and a negative-pressure waste gate valve includes an electronic control unit configured i) to apply a first drive current value to a pressure regulation valve so as to maintain an opening degree of the waste gate valve in a fully closed state in a case where an actual boost pressure is lower than a target boost pressure and a boost pressure difference between the actual boost pressure and the target boost pressure is equal to or larger than a threshold, and ii) to apply a second drive current value that is smaller than the first drive current value to the pressure regulation valve in a case where the actual boost pressure is lower than the target boost pressure and the boost pressure difference is smaller than the threshold.

Control device for internal combustion engine including turbocharger

A rough road determination device () is mounted on a vehicle () that is equipped with an internal combustion engine () having a crank angle sensor (). This rough road determination device is equipped with determination means () for determining whether or not a road on which the vehicle travels is a rough road, by comparing a first amplitude fluctuation amount as an amplitude fluctuation amount of one pulse of an output of the crank angle sensor, which is determined in advance on the basis of a rotational speed of the internal combustion engine, with a second amplitude fluctuation amount as an amplitude fluctuation amount of one pulse that is actually output from the crank angle sensor.

Rough road determination device

Growing community of inventors

Susono, Japan

Junichi Murase