Kabushiki Kaisha Tokai Rika Denki Seisakusho

Denso Corporation

Toyota Jidosha Kabushiki Kaisha

Denso Corpora Tion

Takahiro Shimizu

Takao Imai

Syogo Yamaguchi

Kozo Nishimura

Takashi Ieda

Yuichiro Haruna

Kenichi Koga

Daisuke Kawamura

Hiroaki Iwashita

Tetsuya Egawa

Toshihiro Nagae

Masaki Oshima

Yuji Okuda

Hidenobu Kinugasa

Hidenobu Hanaki

Yosuke Doi

Junji Murase

Akihito Kimura

Tetsuya Kobayashi

A position detection system includes a measurement unit that obtains a measurement value related to transmission and reception of radio waves from when the radio waves are transmitted from one of first and second communication devices to the other one of the first and second communication devices to when the one of the first and second communication devices receives a response to the radio waves to detect a positional relationship of the first and second communication devices. The measurement unit obtains multiple measurement values by performing communication to obtain the measurement value a multiple number of times in which a parameter of the communication is changed.

Position detection system and position detection method

In a driving assistance apparatus, an image acquiring unit acquires a captured image captured by an onboard camera. Based on the captured image acquired by the image acquiring unit, a boundary line recognizing unit recognizes a boundary line that demarcates a traffic lane in which an own vehicle is driving. A road information acquiring unit acquires road information related to a road on which the own vehicle is driving. Based on the road information acquired by the road information acquiring unit, a degree-of-reliability setting unit sets a degree of reliability of the boundary line recognized by the boundary line recognizing unit. Based on the boundary line recognized by the boundary line recognizing unit, a driving assisting unit performs driving assistance of the own vehicle and varies control content of the driving assistance based on the degree of reliability.

Driving assistance apparatus

A display control apparatus is installed in an own vehicle to display an image on a display device viewed by a passenger of the own vehicle. The display control apparatus includes a boundary acquisition section that acquires positions of boundary portions defining both width-wise ends of a traveling lane in which the own vehicle travels, and an object acquisition section that acquires a position of an object around the traveling lane. The apparatus generates a position image, which is an image representing the positions of the boundary portions and the position of the object, and displays the position image on the display device.

Display control apparatus and vehicle control apparatus

A car sharing system includes a car share device and a usage right lending unit that allows multiple users including a first user and a second user to use the vehicle. If the second user requests for usage of the vehicle when the vehicle is being rented to the first user, the usage right lending unit allows the second user to use the vehicle as long as the second user satisfies a lending condition.

Car sharing system

A deviation avoidance apparatus includes: a boundary detection section that detects boundaries defining both edges in a width direction of a traveling path on which an own vehicle travels; a deviation prediction section that predicts that the own vehicle will deviate from the traveling path based on a travelling condition of the own vehicle that travels on the traveling path defined by the boundaries detected by the boundary detection section; an object detection section that detects an object that exists on one of the boundaries, the one of the boundaries being on a side where the own vehicle deviates from the traveling path, or outside of the one of the boundaries; a deviation avoidance section that commands, when the deviation prediction section predicts that the own vehicle will deviate from the traveling path, a travel control unit to have the own vehicle avoid deviating from the traveling path, the travel control unit controlling the travelling condition; and a command value adjustment section that adjusts, when the object detection section detects the object, a command value to be output from the deviation avoidance section to the travel control unit such that a maximum movement position in a case where the own vehicle moves to the side where the own vehicle deviates from the traveling path is on an inside of the traveling path with respect to the one of the boundaries on the side where the own vehicle deviates from the traveling path.

Deviation avoidance apparatus

A deviation avoidance apparatus of an embodiment includes a boundary detection section that detects boundaries of a travelling path on which an own vehicle travels; a deviation prediction section that predicts that the own vehicle will deviate from the travelling path based on a travelling condition of the own vehicle that travels in the travelling path defined by the boundaries detected by the boundary detection section; a deviation avoidance section that commands, when the deviation prediction section predicts that the own vehicle will deviate from the travelling path, a steering control unit to have a steering actuator drive a steering mechanism that changes a traveling direction of the own vehicle such that the own vehicle avoids deviating from the travelling path; and a notification section that notifies vehicle passengers, via a notification unit, when the steering actuator applies driving force to the steering mechanism such that the own vehicle avoids deviating from the travelling path, that deviation avoidance of the own vehicle is ongoing.

A lane departure prevention apparatus according to an embodiment includes a torque control section that outputs a torque control signal indicating to make an actuator generate automatic steering torque for preventing a vehicle from departing from a lane in which the vehicle is running; a driver steering torque detection section that detects driver steering torque, which is applied to a steering wheel of the vehicle by a driver; and a control stop determination section that determines whether or not the automatic steering torque is made zero by comparing a first cancel threshold value for determining sudden steering operation by the driver and a second cancel threshold value lower than the first cancel threshold value with the driver steering torque detected by the driver steering torque detection section. If the torque control section determines to make the automatic steering torque zero, the torque control section outputs the torque control signal so that the automatic steering torque is made zero with a predetermined torque change pattern. If the driver steering torque is the first cancel threshold value or more, the torque control section sets the torque change pattern to a pattern in which the automatic steering torque is promptly made zero. If the driver steering torque is less than the first cancel threshold and is equal to or more than the second cancel threshold, the torque control section sets the torque change pattern to a pattern in which the automatic steering torque is gradually decreased.

Lane departure prevention apparatus

An electronic key registration system includes a controller arranged in a communication subject communicable with an electronic key. A registration tool is in wired or wireless connection with the communication subject. The registration tool registers the electronic key to the controller when receiving a registration permission signal. An information center is connected to a network. The registration tool includes an operator ID acquisition unit that acquires an operator ID from a key registration operator. A communication unit sends the operator ID to the information center through the network. The information center includes an operator ID verification unit that verifies the operator ID received from the registration tool. A permission information notification unit sends, when the operator ID is verified, a registration permission signal to the registration tool through the network to permit the registration tool to perform the registration process.

Electronic key registration system

A turn signal device for a vehicle for activating a turn signal in accordance with operation of an operation lever. The turn signal device includes a turning state detection unit, which detects a turning state of the vehicle. The turning state detection unit monitors a temporal change in the turning state of the vehicle after the turn signal is activated. The turning state detection unit deactivates the turning signal when detecting that the vehicle first turns in an activation direction of the turn signal, then turns in a direction opposite to the activation direction, and afterward turns again in the activation direction.

Vehicle turn signal device

A turn signal illumination controller monitors the lateral movement distance of a vehicle from when a turn switch lever is operated so as to illuminate a turn signal indicator. When the lateral movement distance is greater than or equal to a threshold value indicating completion of lane changing, the turn signal illumination controller cancels the turn signal indicator.

Growing community of inventors

Kariya, Japan

Takahiro Shimizu