Toyota Jidosha Kabushiki Kaisha

Denso Corporation

Jtekt Corporation

Denso Corpora Tion

Yoji Kunihiro

Takahiro Kojo

Yoshio Kudo

Ryo Irie

Masateru Amano

Hisaya Akatsuka

Takeshi Goto

Yoshinori Watanabe

Yoshiaki Suzuki

Takahiro Yokota

Yukihide Kimura

Yutaka Aoki

Masao Ueyama

Atsushi Sone

Go Inoue

Hirotaka Tokoro

Shunsuke Tanimori

Yushi Shibaike

Keitaro Niki

Yushi Nagata

Satoru Yabe

Naoki Nishimura

Toru Takashima

Takahiro Toko

Hisanori Mitsumoto

Robert Fuchs

Theerawat Limpibunterng

Tsutomu Tamura

Shuji Fujita

Etsuo Katsuyama

Kimiaki Ono

Maxime Moreillon

Mitsuyuki Ouchi

Takahiko Kuwabara

Shun Maruyama

Ikuo Kushiro

Shingo Nitta

Masaya Sato

Yuji Watari

Takahiro Kodaira

Hideki Sakai

Shun Mizoo

Taisuke Yasutomi

Junro Yamamoto

Tomomichi Nakamura

Masaki Shiota

Satoshi Takahashi

Tomihide Masuda

Motoshi Oki

Kentaro Horiuchi

Hisashi Kajita

Shogo Takahira

Hiroki Shizuhata

Hiroki Asada

An autonomous vehicle control device configured to determine a control input for causing an automatic driving to travel along a target trajectory determined based on an estimated current location of the vehicle by repeatedly performing a predetermined calculation, wherein the controller estimates the current location by correcting the location of the vehicle on the map data based on the relative location of the vehicle on the traveling road, and adjusts a predetermined parameter in the predetermined calculation in accordance with the amount of correction so that the number of repeated calculations is reduced when it is determined that the estimation of the current location is not accurate based on the amount of correction of the location at that time.

Control device for autonomous vehicle

An autonomous driving control device includes a steering determination unit that determines whether a driver has operated a steering unit while driving with an actuator controlled in a first control mode, an operation speed calculation unit that calculates at least one of a deviation speed, which is the change rate of deviation between a target steering angle during autonomous driving and an actual steering angle, and a steering speed, which is the change rate of the actual steering angle, and a control mode switching unit that, when it is determined that the driver has operated the steering unit, changes an instruction value to be output to the actuator from a first target control amount in the first control mode to a second target control amount in the second control mode at a change rate corresponding to at least one of the deviation speed and the steering speed described above.

Autonomous driving control device

The steering device is configured to automatically perform a steering operation of a steering wheel. The steering device is configured to determine that the steering operation of the steering wheel has been performed by the driver based on the steering angle of the steering wheel and the target steering angle, at least during a driving mode in which the steering operation of the steering wheel is automatically performed, and when it is determined that the steering operation of the steering wheel has been performed by the driver, change the operation characteristics of the steering wheel so that the steering force required when the driver steers the steering wheel is reduced compared to before the determination.

Steering device

An autonomous driving system mounted on a vehicle determines a target path based on necessary information and performs vehicle travel control such that the vehicle follows the target path. A first coordinate system is a vehicle coordinate system at a first timing when the necessary information is acquired. A second coordinate system is a vehicle coordinate system at a second timing later than the first timing. The autonomous driving system calculates, based on the necessary information acquired at the first timing, a first target path defined in the first coordinate system. Then, the autonomous driving system corrects the first target path to a second target path defined in the second coordinate system by performing coordinate transformation from the first coordinate system to the second coordinate system. The autonomous driving system uses the second target path as the target path to perform the vehicle travel control.

Autonomous driving system

A traveling control apparatus that allows lane changing due to a driver's steering intervention while continuing lane maintenance control includes an electronic control unit. The electronic control unit sets a target trace along a lane in which a vehicle is traveling, determines a target steering angle of the vehicle based on the target trace and a lateral position of the vehicle, applies control torque to a steering shaft of the vehicle based on the target steering angle, resets, in response to a change in the lateral position due to the driver's steering intervention which exceeds the control torque and entrance of the vehicle into an adjacent lane, the target trace to the adjacent lane, and determines, using a gradual changing function, in response to the resetting of the target trace, the target steering angle by changing the target steering angle at the time of the resetting.

Traveling control apparatus

A steering control device includes: a first calculator configured to calculate, according to a turning state, a first control amount for causing a motor to generate an assistance force; a second calculator configured to calculate a second control amount for adapting an actual angle to a target angle that is convertible into a turning angle of a steering wheel and generated when a host control device intervenes in steering control; and a third calculator configured to calculate, according to the turning state, a third control amount for offsetting the second control amount when the host control device intervenes in steering control.

Steering control device

The steering control apparatus determines whether or not a deviation degree of a current traveling route of a vehicle with respect to a target traveling route is equal to or more than a predetermined threshold, when steering control is switched from manual steering control to automatic steering control. In the automatic steering control, a command steering angle is calculated so that a difference between a real traveling route of the vehicle and the target traveling route is eliminated. However, when the deviation degree is equal to or more than the predetermined threshold, the steering control apparatus recalculates the command steering angle used in the command steering angle tracking control based on a steering angle at the time of starting the automatic steering control and the command steering angle so that a real steering angle after switching to the automatic steering control changes gradually to the command steering angle.

Steering control apparatus

A vehicle control system includes an information acquirer configured to acquire vehicle surrounding information, and a controller configured to execute driving assistance control. The controller is configured to set a first line as a target traveling line when an operation status of the driving assistance control is ON. The controller is configured to set, when a driving switching request is made, the target traveling line to cause a vehicle to travel along a second line displaced from the first line by a predetermined displacement amount after a specific timing that is a timing when a predetermined time has elapsed from a requested timing.

Vehicle control system

Provided is a control apparatus for a vehicle configured to perform steering assist control and driving support control based on a motor control amount, the control apparatus being further configured to correct the motor control amount such that a specific steering amount in a second period becomes smaller than that in a first period, the specific steering amount being an amount of change in a steering angle required for a magnitude of a steering torque to reach a torque threshold, the first period being a period from a first time point at which a driving support operation state is changed to an on state to a second time point at which a driving operation switching request is issued, and the second period being a period from the second time point to a third time point at which the driving support operation state is changed to an off state.

Vehicle control apparatus and method

A vehicle driver assistance system includes: a steering assist torque generation device configured to generate steering assist torque; a control device configured to control the steering assist torque generation device; and a switch configured to switch a steering mode between a manual steering mode and an automatic steering mode. The manual steering mode is a mode in which steered wheels are steered as a driver operates a steering wheel. The automatic steering mode is a mode in which the steered wheels are steered by the steering assist torque generated by the steering assist torque generation device.

Vehicle driver assistance system

Provided is a control apparatus for a vehicle configured to perform driving support control when a driving support operation state is an on state, the control apparatus being further configured to, in a case where the driving support operation state is the on state and a driving operation switching request for changing the driving support operation state to an off state is issued, calculate a target speed at a driving operation switching time point at which the driving support operation state is changed from the on state to the off state, and perform deceleration control for decelerating the vehicle such that a speed of the vehicle matches the target speed at the driving operation switching time point.

An automatic steering system comprises a controller. The controller executes target steering angle calculation processing. The controller further calculates a learning value of lateral acceleration. The learning value is calculated based on an error of a detected value of the lateral acceleration by an acceleration sensor and an estimation value of the lateral acceleration calculated using driving speed and yaw rate. In the target steering angle calculation processing, it is judged whether the acceleration sensor is normal. If it is judged that the acceleration sensor is normal, a target steering angle is calculated by using the detected value. Otherwise, the lateral acceleration used to calculate the target steering angle is switched from the detected value to a backup value of the lateral acceleration. The backup value is calculated using the estimation value and the learning value calculated before a timing at which the acceleration sensor is judged to be abnormal.

Automatic steering system and automatic steering method

A vehicle control system includes: an electric power steering device that generates an assist torque that assists turning of a wheel caused by a steering wheel rotation; a controller that controls the electric power steering device to generate the assist torque according to the steering wheel rotation in a normal mode; and a state sensor that detects a vehicle travel state and a state of an occupant at a driver's seat. When the occupant at the driver's seat performs a getting-on action or a getting-off action when the vehicle is in an ignition-ON state, the controller controls the electric power steering device in a temporal mode. In the temporal mode, the controller changes a method of controlling the electric power steering device such that the steering wheel rotation is suppressed as compared with a case of the normal mode.

Growing community of inventors

Susono, Japan

Yoji Kunihiro