Toyota Jidosha Kabushiki Kaisha

Advics Co., Ltd.

Fujitsu Corporation

Daisuke Nakata

Takahiro Okano

Yusuke Kamiya

Masaki Ninoyu

Masaaki Komazawa

Tsukasa Fukasawa

Eiji Nakamura

Koichi Suzuki

Yuki Tatsumoto

Naoki Uenoyama

Tetsuya Miyazaki

Yoshio Masuda

Kosuke Hashimoto

Ryo Kamimura

Yusuke Futakuchi

Hayato Kubota

Kenji Sakamoto

Takashi Ota

Yoshinobu Higuchi

Kazuhiro Kitazaki

Yosuke Yamasoe

Yu Takahashi

Nobuyoshi Wakasugi

Kenichiro Takahashi

Yuusuke Kamiya

A data correction device includes a data acquiring part for acquiring map data including point sequence data showing a position of a first dividing line in a first section and point sequence data showing a position of a second dividing line corresponding to the first dividing line in a second section adjoining the first section; a position revising part for revising point data showing a position near a boundary of at least one of the first dividing line and the second dividing line so that the first dividing line and the second dividing line expressed by the point sequence data are smoothly connected at the boundary; and a position data output part for outputting point sequence data including point data showing revised positions of the dividing lines near the boundary.

Data revision device, data revision method, data revision program, and vehicle

An information processing device includes a communication unit and a control unit. The control unit is configured to determine a sprinkling mode based on information indicating the environment of a sprinkling place. The control unit is configured to send, through the communication unit, a notification indicating the sprinkling mode to at least one vehicle scheduled to travel in the sprinkling place.

Information processing device, control device, vehicle, and sprinkling method

An information processing device includes a communication unit and a control unit. The control unit determines a degree of danger of an area based on information on at least one vehicle traveling in the area which is received by the communication unit.

Information processing device, program, and information processing method

A control device includes a control unit and a communication unit. The control unit is configured to calculate a set value that is the set value of an air conditioner provided in the destination facility of a vehicle and is to be used by the occupants of the vehicle, based on information on the air conditioning environment in the vehicle and is configured to send the calculated set value of the air conditioner to a predetermined sending destination via the communication unit.

Control device, terminal device, and control method

A steering device installed on a vehicle including a plurality of steerable wheels and configured to independently steer a wheel which is one of the plurality of steerable wheels, including: an electric motor as a drive source; a motion converting mechanism configured to convert a motion of the electric motor into a steering motion of the wheel; and a controller configured to control a supply current to the electric motor so as to achieve steering of the wheel corresponding to a motion position of the electric motor, wherein, to eliminate a discrepancy between the motion position of the electric motor and a steering position of the wheel detected based on the supply current to the electric motor supplied when the motion position of the electric motor is maintained at a straight-traveling-state position, the controller executes a reference change process of changing a setting of the straight-traveling-state position.

Steering device and steering system including steering devices

A steering system for a vehicle, including: a pair of wheel steering devices that respectively steer right and left wheels independently of each other; and a controller configured to control the pair of wheel steering devices, wherein the controller is configured to: determine a standard steering amount of each of the right and left wheels in accordance with a steering request; execute opposite-phase shift steering in which steering amounts of the respective right and left wheels are shifted in mutually opposite directions by respective shift amounts with respect to the standard steering amounts determined respectively for the right and left wheels; and estimate a friction coefficient of a road surface on which the vehicle is running based on steering forces respectively applied to the right and left wheels in the opposite-phase shift steering.

Vehicle steering system

Provided is a vehicle braking control device applicable to a vehicle equipped with an electric-powered parking braking device, a hydraulic braking device and a regenerative braking device. The braking control device comprises a first braking control unit and a second braking control unit. When a parking braking operation is performed while the vehicle is travelling, the first braking control unit implements a first braking process which increases the braking force to the vehicle by operating the hydraulic braking device. When the braking force to the vehicle needs to be increased in a situation where the first braking process is being implemented, the second braking control unit implements a second braking process which increases the braking force to the vehicle by operating the regenerative braking device.

Vehicle braking control device

A brake controller according to the present disclosure that changes an effect correlation value correlating to an effect of braking in a first braking system provided in a vehicle in accordance with a vehicle condition of the vehicle includes a control part generating a braking force by at least one of the first braking system and a second braking system different from the first braking system in a case where the vehicle condition is a first condition based on a braking distribution ratio different from that in a case where the vehicle condition is a second condition and a setting part setting the effect correlation values so as to be different from each other in the case where the vehicle condition is the first condition and in the case where the vehicle condition is the second condition.

Brake controller

This vehicle brake device performs raising processing for raising, by a predetermined raising amount, the target hydraulic pressure of hydraulic fluid when the pressure of the hydraulic fluid starts increasing in order to suppress a delay in response to the increase in the pressure of hydraulic fluid during switching processing for gradually switching at least part of regenerative braking force to hydraulic braking force, and includes a judging portion which judges whether or not required braking force or deceleration is reduced during cooperative control; and a raising amount setting portion which during the raising processing, sets a second predetermined pressure as a raising amount if the judgement result of the judging portion is positive, the second predetermined pressure being smaller than a first predetermined pressure that is the raising amount when the determination result of the determination result is negative.

Vehicle brake device

A vehicle braking device sets a target hydraulic braking force based on the difference between the execution regeneration braking force, which is actually generated regeneration braking force and the requested braking force which is to be applied to the vehicle wheels and includes a hydraulic pressure control portion that raises the target hydraulic braking force by a predetermined value at a timing when the difference between the execution regeneration braking force and the maximum value thereof is equal to or less than a judgement threshold value and a threshold value setting portion that sets the judgement threshold value on the basis of the requested braking force gradient when the liquid amount inside the hydraulic chamber is less than a predetermined amount, and sets the judgement threshold value on the basis of the target hydraulic braking force gradient when the liquid amount is equal to or more than the predetermined amount.

Vehicle braking device

The vehicle braking device performs a control which makes an actual value of physical quantity associated with a braking force follow a target value thereof when the actual value is outside a dead zone and a control which suppresses a change of the actual value when the actual value is within the dead zone and includes a judging portion which judges whether or not the actual value passes through the dead zone with a value beyond the upper limit threshold value and a setting portion which sets a second upper limit threshold value more closely approximated than a first upper limit threshold value when the actual value is judged not to pass through the dead zone, as the upper limit threshold value, when the actual value is judged to pass through the dead zone by the judging portion.

The hydraulic pressure control includes a valve portion which adjusts a fluid flowing into or flowing out of a hydraulic pressure chamber, a state judging portion which judges whether or not a state of the hydraulic pressure chamber is in a state in which the actual pressure is increasing even the holding signal has been inputted to the valve portion and a control portion which executes a specific control which keeps the actual pressure to the hydraulic pressure within the dead zone when the state judging portion judges that the state of the hydraulic pressure chamber is in a state that the actual pressure fluctuates even the holding signal has been inputted to the valve portion.

Hydraulic pressure control device

Provided is a vehicular brake apparatus capable of suppressing the occurrence of pedal shock. In this vehicular brake apparatus, a master cylinder forms a second hydraulic chamber neighboring to a first hydraulic chamber through a seal member. The seal member is arranged at a position facing the first hydraulic chamber and the second hydraulic chamber to be movable in the axial direction relative to the master cylinder. A first hydraulic pressure generating portion executes a movement restriction hydraulic pressure control such that when the operation information obtained by the operation information obtaining portion indicates that the brake operating member is not operated, the first hydraulic pressure which is higher than the second hydraulic pressure is generated in advance and consecutively, the larger a value relating to an operating amount in the operation information obtained by the operation information obtaining portion, the higher the first hydraulic pressure is generated.

Vehicular brake apparatus

A braking device for a vehicle includes a friction brake device, a regeneration bake device, a control portion which controls the friction braking force and the regeneration braking force through a cooperative control and a state judging portion which judges whether a vehicle state is in a stopped state or a non-braking operation state where the braking operation is not performed, The control portion executes a factor change control which suppresses an increase of change inclination of the friction braking force by changing a factor relating to a friction used when the hydraulic pressure is converted into the friction braking force to an increasing side and returns the factor to a value at a non-operation of the factor change control when the vehicle state is judged to be in the stopped state or the non-braking operation state by the state judging portion.

Braking device for vehicle

In a vehicular brake device, while a brake operating member is not operated and a wheel cylinder pressure supplying control is executed to supply the target wheel cylinder pressure to the respective wheel cylinders individually, the vehicle control device sets the target servo pressure to a first predetermined target servo pressure which is a value smaller than a maximum output pressure of the servo pressure generating device. When the execution of the wheel cylinder pressure supplying control starts, the vehicle control device sets the target servo pressure to be the target wheel cylinder maximum value when a firstly occurred rising inclination of the target wheel cylinder maximum value is equal to or more than a minimum increment of an output of the servo pressure generating device per unit time and at the same time when the target wheel cylinder pressure is smaller than the first determined target servo pressure.

Growing community of inventors

Seto, Japan

Daisuke Nakata