Toyota Jidosha Kabushiki Kaisha

Aisin Seiki Kabushiki Kaisha

Other

Denso Corporation

Nippon Soken, Inc.

Kabushiki Kaisha Toyota Chuo Kenkyusho

Advics Co., Ltd.

Sumitomo Rubber Industries Limited

Toyota Jidosha Kabushiki Kaisha & Kabushiki Kaisha Toyota Chuo Kenkyusho

Hideki Ohashi

Ryo Kanda

Jun Tokumitsu

Shogo Tanaka

Takaji Umeno

Yukio Mori

Takeyasu Taguchi

Toshiharu Naito

Masaaki Oishi

Masaaki Tabata

Katsuhiro Asano

Katsuyuki Sano

Hiroyoshi Kojima

Hiroyuki Kawai

Motonori Tominaga

Kazuhiro Kamiya

Yuichi Inoue

Kohtaroh Okimura

Masahiro Yonetani

Ken Ogue

Toshio Onuma

Yosuke Yamashita

Nobuyoshi Onogi

Masataka Okuda

Hideki Kusunoki

Kenichi Ishii

Kenji Fujiwara

Yoshihiro Nishikawa

Takenari Yamaguchi

Masaki Kanatani

Hiroto Miura

Yuuichi Inoue

Tomoyuki Nakamura

Atsushi Mizuta

Shota Higashi

Koutaro Okimura

Hirokazu Shiozaki

Eiichi Ono

Minao Yanase

Kazuki Miyake

Yukio Nakao

Akitsugu Sakai

Wataru Kanda

Nobuo Hiraiwa

Masakazu Ohashi

Takayuki Tachi

Ikuhide Iyoda

Kenji Tomiita

Kotaro Okimura

Shuji Hasegawa

Masao Ikeya

Toshimichi Takahashi

Shinjiro Fukada

Motoji Suzuki

Motonari Tominaga

Tatsuya Hasegawa

A manager installed in a vehicle includes one or more processors. The one or more processors are configured to receive a plurality of kinematic plans and identification information of a plurality of advanced driver assistance system applications from the advanced driver assistance system applications, and receive a control status indicating an execution state of control in each of the advanced driver assistance system applications. The one or more processors are configured to perform a first arbitration that arbitrates the kinematic plans.

Manager, electronic control unit, system, control method, non-transitory storage medium, and vehicle

A control device to be mounted on a vehicle includes a memory configured to store information related to priority levels of a plurality of applications that implements driving assistance functions and a processor. The processor is configured to receive, from the applications, application requests and identifiers that identify the respective applications. The processor is configured to arbitrate a plurality of the application requests based on the information and the identifiers. The processor is configured to output a request to an actuator based on a result of arbitration of the application requests.

Control device for vehicle, manager, method, non-transitory storage medium, and vehicle

A vehicle-height control system including a tank, a compressor, an actuator, and a valve between the tank and the compressor. The valve is closed to a state of a pressure medium supplier to the compressor-pressure supply state when a tank pressure has reached a threshold in a tank-pressure supply state in which the tank pressure is supplied to the actuator. In the compressor-pressure supply state, the tank pressure is kept at the threshold, and a pressure in the actuator is greater than the tank pressure. The threshold makes it difficult for a pressure differential in the valve to become greater than a valve-opening pressure differential, making it difficult for the valve to be opened in the compressor-pressure supply state. This system enables good supply of a pressure medium from the compressor to the actuator, avoiding a longer time for vehicle height control and achieving a shorter compressor operation time.

Vehicle-height control system

A vehicle height control system includes a fluid feeder and a vehicle height control unit. The vehicle height control unit includes a communication control unit. In a first communication state, a high-pressure source and a common passage are made to communicate with each other via the first passage and the second passage. In a second communication state, the first passage is shut off and the high-pressure source and the common passage are made to communicate with each other via the second passage. The communication control unit selects one from among the plurality of communication states based on at least one of a content of a start condition, a target vehicle height of a height increasing control and a number of wheels to be controlled in the height increasing control, when the start condition of the height increasing control is satisfied.

Vehicle height control system

A vehicle-height control system includes: a fluid supply and discharge device including a compressor device and a tank storing fluid pressurized by the compressor device; a vehicle-height control actuator corresponding to a wheel and connected to the fluid supply and discharge device; a vehicle height controller that controls a vehicle height for the wheel by controlling the fluid supply and discharge device to control supply and discharge of fluid to and from the vehicle-height control actuator; a tank pressure controller that controls a tank pressure; and a fluid supply controller that supplies the fluid to a low pressure portion by controlling the fluid supply and discharge device at start and/or termination of at least one of control executed by the vehicle height controller and control executed by the tank pressure controller. The low pressure portion is at least a portion of the fluid supply and discharge device.

Vehicle-height control system and pressure source device

A vehicle-height control system is configured to control a vehicle height for a wheel. The vehicle-height control system includes: a vehicle-height control actuator provided so as to correspond to the wheel; a pressure-medium supply and discharge device configured to supply and discharge a pressure medium to and from the vehicle-height control actuator; and a vehicle height controller configured to control the vehicle height for the wheel by controlling the pressure-medium supply and discharge device based on an inside temperature and an outside-air temperature to control at least one of supply and discharge of the pressure medium to and from the vehicle-height control actuator. The inside temperature is a temperature in the vehicle-height control system.

A vehicle-height control system includes: a fluid supply and discharge device including a compressor configured to suck fluid, and a tank configured to supply the fluid; an actuator-side passage connected to the fluid supply and discharge device; a vehicle-height control actuator provided for a wheel and connected to the actuator-side passage via a vehicle-height control valve; and a vehicle height controller configured to control a vehicle height for the wheel by controlling the fluid supply and discharge device and the vehicle-height control valve to control supply and discharge of the fluid in the vehicle-height control actuator. The vehicle height controller includes a start controller configured to open the vehicle-height control valve after establishing communication between the actuator-side passage and at least one of the tank and the compressor in a state in which the vehicle-height control valve is closed at a start of control of the vehicle height.

A vehicle-height adjustment system includes: a vehicle-height adjustment actuator provided so as to correspond to a wheel; and a pressure-medium supply and discharge device configured to supply and discharge a pressure medium to and from the vehicle-height adjustment actuator. The pressure-medium supply and discharge device includes a tank configured to store the pressure medium. The vehicle-height adjustment system includes a tank-pressure controller configured to control a tank pressure based on at least one of a vehicle height for the wheel and an inside temperature. The tank pressure is a pressure of the pressure medium stored in the tank, and the inside temperature is a temperature in the vehicle-height adjustment system.

Vehicle-height adjustment system

A vehicle height adjustment system includes: a vehicle height adjustment actuator provided for each wheel of a vehicle; a pressure medium intake and exhaust device configured to supply and exhaust a pressure medium to and from the vehicle height adjustment actuator; and a vehicle height adjustment unit including a computer, the vehicle height adjustment unit configured to: adjust a vehicle height by controlling the pressure medium intake and exhaust device, the vehicle height being a distance between the wheel and a vehicle body; adjust the vehicle height when a get-in estimation condition is satisfied; and limit a number of times the vehicle height is adjusted within a set period to a number of times smaller than a set number of times.

Vehicle height adjustment system

An air source device includes: a tank; a compressor; an intake valve; and an ECU configured to acquire an intake amount, which is an amount of air sucked from an outside and supplied to the tank by the compressor, based on an increasing amount of a tank pressure, which is a pressure of the air accommodated in the tank, the increasing amount being an increasing amount from a time point when the intake valve is estimated to be changed from a closed state to an opened state.

Air source device

A suspension system includes: suspensions that respectively include vehicle height control actuators; a pressure medium supply-discharge device; and a vehicle height controller configured to control the pressure medium supply-discharge device to control vehicle height, wherein a magnitude of resistance that is generated during a change in the vehicle height at one or more of the suspensions is larger than a magnitude of resistance at another one or more of the suspensions, and the vehicle height controller is configured to execute vehicle height control for the wheel that corresponds to the one or more of the suspensions with the large magnitude of the resistance prior to vehicle height control for the wheel that corresponds to the other one or more of the suspensions with the small magnitude of the resistance.

Suspension system

An air suspension system includes a controller that controls opening/closing of normally-closed electromagnetic switching valves constituting a control valve, a first supply/discharge switching valve, a second supply/discharge switching valve, a first tank switching valve, and a second tank switching valve. The controller controls opening/closing of the electromagnetic switching valves in an order of first control, second control, and third control. In the first control, the control valve is opened. In the second control, the first supply/discharge switching valve and the second supply/discharge switching valve are opened in an opened state of the control valve. In the third control, the control valve, the first supply/discharge switching valve, and the second supply/discharge switching valve are closed.

Air suspension system

A vehicle-height adjusting system includes: vehicle-height adjusting actuators each for adjusting a vehicle height for a corresponding one of wheels; a pressure medium supplier for supplying a pressure medium from a tank to each of the vehicle-height adjusting actuators; and a vehicle height adjuster for adjusting the vehicle height for each wheel. The vehicle-height adjusting actuators include a left vehicle-height adjusting actuator and a right vehicle-height adjusting actuator. The vehicle height adjuster includes a supply amount controller configured to control the pressure medium supplier such that substantially the same amount of the pressure medium is to be supplied from the tank to the left vehicle-height adjusting actuator and the right vehicle-height adjusting actuator, when at least one of the wheels is in contact with an uneven road surface.

Vehicle-height adjusting system

An engine control device applied to a vehicle equipped with an actuator for changing a suspension property of the vehicle, a suspension control device for driving the actuator, and an engine. The engine control device automatically stops the engine operation when a stop condition is satisfied and automatically starts the engine operation when a start condition is satisfied, continues the engine operation when a signal for inhibiting the automatic stop of the engine operation is sent to the engine control device in order to drive the actuator and the engine control device judges that no malfunction occurs in the suspension control device even if the stop condition is satisfied, and ignores the signal and automatically stops the engine operation when the stop condition is satisfied and judges that the malfunction occurs in the suspension control device even if the signal is sent to the engine control device.

Engine control device

The engine control device is applied to a vehicle equipped with a suspension control device for driving stepping motors for changing damping forces of shock absorbers. The suspension control device performs an initializing process for resolving the step-out of the stepping motors by driving the stepping motors when an initialization performing condition is satisfied. The engine control device continues the engine operation when a signal for inhibiting the automatic stop of the operation of the engine is sent to the engine control device and the engine control device judges that no malfunction occurs in the suspension control device even if the engine stop condition is satisfied. The engine control device automatically stops the operation of the engine when the engine stop condition is satisfied and the engine control device judges that a malfunction occurs in the suspension control device even if the signal is sent to the engine control device.

Growing community of inventors

Chiryu, Japan

Hideki Ohashi