Toyota Jidosha Kabushiki Kaisha

Advics Co., Ltd.

Mitsutaka Tanimoto

Yoshitaka Fujita

Go Inoue

Takahiro Kojo

Toru Takashima

Yoshiaki Tsuchiya

Takahiro Yokota

Yutaka Aoki

Tetsuhiro Narita

Norihisa Nishikawa

Yoshinori Watanabe

Yoshio Kudo

Yuta Ohashi

Theerawat Limpibunterng

Masateru Amano

Hidehisa Kato

Satoru Ohsaku

Shun Maruyama

Michihiro Otsubo

Yusuke Udagawa

Toshihiko Seki

A vehicle control device includes a processor. The processor calculates an instruction value of an operation request for controlling an operation of an actuator mounted on a vehicle based on a motion request from an application. The processor executes feedback control on the instruction value using a deviation between the motion request and a motion result of the vehicle that is calculated based on one of detection values of four wheel velocity sensors. The processor calculates the motion result in the feedback control based on a detection value indicating the second largest vehicle body velocity among the vehicle body velocities indicated by the detection values of the four wheel velocity sensors when the vehicle is braked.

Vehicle control device

An autonomous driving vehicle includes a first reference straight steering angle acquisition unit configured to acquire a first reference straight steering angle which is a steering angle of the autonomous driving vehicle in a straight travelling state, a second reference straight steering angle acquisition unit configured to acquire a second reference straight steering angle which is the steering angle when a magnitude of a difference between an estimated yaw rate estimated from the steering angle of the autonomous driving vehicle and the yaw rate of the autonomous driving vehicle detected from the yaw rate sensor is less than a yaw rate threshold value, and an autonomous driving permission unit configured to permits an autonomous driving of the autonomous driving vehicle when both the first reference straight steering angle and the second reference straight steering angle are acquired.

Autonomous driving vehicle, method for controlling autonomous driving vehicle, and program

An autonomous driving system installed on a vehicle includes: an information acquisition device configured to acquire driving environment information indicating driving environment for the vehicle; and an autonomous driving control device configured to control autonomous driving of the vehicle based on the driving environment information. The driving environment information includes: map information; and size information indicating a size of a routing object that moves integrally with the vehicle. The autonomous driving control device refers to the map information and the size information to determine a travel route through which the routing object can pass without protruding from a roadway as a target travel route to a destination.

Autonomous driving system

A vehicle control apparatus executes braking assist control to decelerate a vehicle by automatic operation of a braking device. When the vehicle control apparatus obtains a deceleration request from a driver during execution of the braking assist control, while a driver request deceleration requested to the braking device by the driver is constant or in an increasing trend, the vehicle control apparatus executes first arithmetic processing to suppress a system request deceleration requested to the braking device by the braking assist control from being decreased by the braking assist control.

Vehicle control apparatus

A brake control apparatus includes: a master cylinder that outputs a brake fluid at a master pressure; a master pressure changing device that is configured to change the master pressure irrespective of an operation of a brake pedal; a brake actuator; and a control unit that executes vehicle stability control by changing a brake pressure of a target wheel. Modes of the vehicle stability control include a normal mode and a pseudo mode. In the pseudo mode, the control unit operates the master pressure changing device such that the master pressure obtains a target value of the brake pressure of the target wheel, and changes the brake pressure of the target wheel in an interlocking manner with the master pressure. When the normal mode is unavailable, the control unit executes the vehicle stability control in the pseudo mode.

Brake control apparatus for vehicle

A brake control apparatus includes: a master cylinder that outputs a brake fluid at a master pressure; a master pressure changing device that can change the master pressure irrespective of an operation of a brake pedal; a brake actuator; and a control unit that executes antilock control by reducing a brake pressure of a target wheel. Modes of the antilock control include a normal mode and a pseudo mode. In the pseudo mode, the control unit operates the master pressure changing device such that the master pressure obtains a target value of the brake pressure of the target wheel, and changes the brake pressure of the target wheel in an interlocking manner with the master pressure. When the normal mode is unavailable, the control unit executes the antilock control in the pseudo mode.

A vehicle travel control device includes: an EPS device turning a wheel of a vehicle; and a control device performing autonomous driving control that controls autonomous driving of the vehicle. The autonomous driving control includes: calculating a target steering angle of the wheel; and actuating the EPS device to turn the wheel such that a steering angle of the wheel becomes the target steering angle. Calculating the target steering angle includes: calculating an autonomous driving steering angle and a target state quantity required for automatic steering in the autonomous driving; calculating a counter steering angle required for vehicle stabilization control, based on the target state quantity without using a steering wheel angle; and calculating a sum of the autonomous driving steering angle and the counter steering angle as the target steering angle.

Vehicle travel control device and autonomous driving control method

A control apparatus for controlling a vehicle which is provided with a braking/driving force varying device capable of individually changing a braking/driving force acting on each of wheels (FL, FR, RL, RR) with respect to each wheel. The control apparatus includes a target state quantity setting device for setting a target state quantity corresponding to a target motion state of the vehicle; and a target braking/driving force setting device for setting a target braking/driving force, which is a target value of the braking/driving force, such that a state quantity corresponding to the target state quantity and a steering reaction force transmitted to a steering apparatus from the wheel are the set target state quantity and a predetermined target steering reaction force, respectively, on the basis of a relative relation, which is set in advance, between the state quantity and the steering reaction force, and a left-right braking/driving force difference of front wheels and a left-right braking/driving force difference of rear wheels.

Control apparatus for vehicle

A vehicle steering control apparatus in a vehicle including an apparatus changing a tire steer angle independently of steering wheel operation; a detecting device detecting a tire steer angle equivalent value corresponding to the tire steer angle; and a controller is provided. The controller is configured to learn a steering wheel angle neutral point; determine if the detecting device is in an abnormal state; disregard the learned steering wheel angle neutral point if the detecting device is in the abnormal state; control the apparatus such that the tire steer angle is returned to a tire steer angle neutral point if the detecting device is in the abnormal state; initialize the detecting device after the tire steer angle is returned to the tire steer angle neutral point; and restart the learning of the steering wheel angle after the detecting device is initialized.

Vehicle steering control apparatus

A vehicle motion control apparatus which is configured to control a motion of a vehicle comprising a plurality of apparatuses, each of which is configured to selectively control a slip angle or a yaw rate, is provided with: a behavior controlling device which is configured to perform behavior control in which a plurality of apparatuses are controlled such that a slip angle and a yaw rate are a set target slip angle and a target yaw rate, respectively; a turning state quantity specifying device which is configured to specify a turning state quantity of the vehicle; and a selecting device which is configured to select at least one of the slip angle and the yaw rate to be prioritized, on the basis of the specified turning state quantity in a case where the behavior control needs to be performed by one of the plurality of apparatuses. The behavior controlling device controls the one apparatus such that the selected one has the target value corresponding to the selected one, in the case where the behavior control needs to be performed by the one apparatus.

A vehicle steering control apparatus is provided with: a first setting device for setting a first target steering angle of rear wheels according to a steering wheel operation of a driver; a second setting device for setting a second target steering angle of the rear wheels which does not work with the steering wheel operation by the driver and which is associated with automatic steering; a controlling device for controlling a steering angle of the rear wheels on the basis of the set first and second target steering angles; and a limiting device for limiting an influence of the first target steering angle on the steering angle of the rear wheels in accordance with a driving condition of the vehicle if the set first and second target steering angles have a mutually anti-phase relation, the limiting device limiting an influence of the second target steering angle on the steering angle of the rear wheels in accordance with the driving condition of the vehicle in preference to the first target steering angle if the automatic steering associated with the setting of the second target steering angle suppresses a change in the vehicle state quantity produced in a process of controlling a state controlled variable which is different front the steering angle of the rear wheels.

A travel control device for a vehicle provided with: a steering angle control device that alters the relationship between the amount of steering operation of a driver and the steering angle of steerable wheels; a trajectory control device that controls the travel trajectory of the vehicle by means of controlling the steering angle of the steerable wheels; and a turning condition control device that determines a target turning condition control level for causing the turning condition of the vehicle to be a target turning condition, and controls the turning condition of the vehicle on the basis of the target turning condition control level. A turning condition control device calculates the target turning condition control level on the basis of the amount of steering operation of the driver and the control level of the trajectory control device, and thereby reflects in the target turning condition control level changes to the steering angle resulting from the control of the traveling trajectory.

Device for controlling vehicle travel

A vehicle control apparatus including a braking force applying device of a hydraulic type, capable of applying a braking force to each of a plurality of wheels. A hydraulic pressure controlling device controls a hydraulic pressure of the braking force applying device such that each of the wheels is not locked. A hydraulic pressure increasing or decreasing period changing device changes an increasing or decreasing period of the hydraulic pressure controlled by the hydraulic pressure controlling device. A controlling device controls the hydraulic pressure increasing or decreasing period changing device to change the increasing or decreasing period of the hydraulic pressure corresponding to each of the wheels in contact with a road surface having a high road surface friction coefficient, from that where a left-right braking force difference is not generated, to where the left-right braking force difference is generated by the hydraulic pressure controlling device.

A vehicle including a vehicle behavior control device in an ECU. The vehicle behavior control device obtains a line of sight direction of the driver of the vehicle by a line of sight detecting sensor for detecting the line of sight of the driver from an eye movement of the driver. The vehicle behavior control device decides a targeted traveling direction of the vehicle based on the obtained line of sight direction of the driver. Then, the vehicle behavior control device controls a rear wheel steering device such that a front-rear direction of the vehicle faces the targeted traveling direction of the vehicle.

Vehicle behavior control device

An apparatus and method for estimating a turning characteristic of a vehicle provided with a controller that performs the following steps are provided. That is, the controller estimates a value corresponding to a standard turning state based on vehicle running data of when the vehicle is turning, estimates a transfer function between the value corresponding to the turning state and a value corresponding to an actual turning state, estimates a turning characteristic of the vehicle based on the transfer function, determines whether the vehicle is in a critical turning state, and the prohibits the estimated turning characteristic from being used when it is determined that the vehicle is in the critical turning state.

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Susono, Japan

Mitsutaka Tanimoto