Hitachi, Ltd.

Hitachi Astemo Ltd.

Hitachi Automotive Systems, Ltd.

Hitachi Construction Machinery Co., Ltd.

Yoichi Iihoshi

Toshio Hori

Yoshikuni Kurashima

Minoru Ohsuga

Yuuki Okuda

Takashi Okada

Noboru Tokuyasu

Toshiharu Nogi

Takuya Shiraishi

Takafumi Arakawa

Nobuyasu Kanekawa

Osamu Suzuki

Shin Yamauchi

Shinji Nakagawa

Yuto Imanishi

Yutaka Takaku

Kunihiko Suzuki

Kenji Mizutani

Nahoko Maruyama

Haoyun Shi

Masatoshi Hoshino

Kohei Sakurai

Shiro Yamaoka

Junya Takahashi

Yoshihiko Akagi

Taisetsu Tanimichi

Kengo Kumano

Subrata Kumar Kundu

Akihito Numata

Koichiro Ejiri

Eisaku Fukuchi

Naoyuki Tashiro

Satoshi Inose

Kouji Fujita

Hiroshi Tsukui

Shinsaku Tsukada

Akira Hikichi

Ryusei Miura

Yuichi Komoriya

Koichi Terui

Kenichi Ajima

Ryo Furutani

Kouichirou Ejiri

Kouji Otani

Managing a vehicle body including computing an efficiency value of a monitoring target, the monitoring target being the power train or a part or a subsystem of the power train, on the basis of information about the vehicle body, the information being sensed by a sensor provided to the vehicle body. An output terminal that outputs the efficiency value of the monitoring target. Determining whether a load parameter is larger than a load determination value set in advance, and computing the efficiency value of the monitoring target on the basis of input energy and output energy of the monitoring target on condition that the load parameter be larger than the load determination value, and recording the computed efficiency value of the monitoring target.

Vehicle body management system

The invention of the present application has an object of providing a mine management system capable of separately sensing an abnormality of a powertrain system and a load amount sensor of a mine dump truck. For this purpose, a mine management system for managing mine dump trucks operating in a mine includes a processing device that calculates and totalizes a productivity index of the mine dump trucks, in which the processing device: calculates consumed energy of the mine dump truck on the basis of at least a vehicle velocity of the mine dump truck, a road surface gradient, and a load amount; calculates input energy of the mine dump truck on the basis of at least one of a fuel injection amount, trolley electric power, and battery electric power of the mine dump truck; and determines presence or absence of an abnormality of a load amount sensor or a powertrain system of the mine dump truck on the basis of the consumed energy and the input energy.

Mine management system

The present invention provides a vehicle control device capable of improving fuel consumption while reducing deterioration of emission by appropriately controlling a powertrain system of a vehicle. A vehicle control device includes: a prediction unit configured to predict speeds or accelerations of a vehicle based on a plurality of prediction models; a fuel consumption information calculation unit configured to calculate fuel consumption for each of a plurality of prediction results obtained by the prediction unit; a selection unit configured to select any one of the plurality of prediction results; and a powertrain control unit configured to control at least one of an engine, a generator, an inverter, a drive motor, and a transmission of the vehicle based on the prediction result selected by the selection unit.

Vehicle control device and vehicle control method

A driving assistance device controls the speed of an own vehicle based on a predicted traveling state of a preceding vehicle, and includes a traveling scene recognition unit that detects the distance until the preceding vehicle reaches an intersection, a determination unit that determines a traveling scene of the preceding vehicle at the intersection, and a calculation unit that selects the preceding vehicle prediction model according to the traveling scene determined by the determination unit from among a plurality of preceding vehicle prediction models recorded for each traveling scene in which the preceding vehicle travels, and inputs a distance until the preceding vehicle detected by the traveling scene recognition unit in the selected preceding vehicle prediction model reaches the intersection so as to calculate a predicted traveling state of the preceding vehicle after a predetermined time.

Driving assistance device

Example implementations described herein involve a system for predicting vehicle behavior with a higher efficiency which can reduce the number of sensors and the amount of data needed for vehicle control systems. Example implementations described herein can be used for any type of vehicle control system, such as a powertrain control system, an adaptive cruise control system, an autonomous driving system, because the target vehicle to be predicted can be replaced to a preceding vehicle, a surrounding vehicle, and an ego vehicle.

System for predicting vehicle behavior

The movement of the vehicle is controlled so that the travel time does not become long while reducing the fuel consumption of the vehicle. A vehicle control devicethat automatically controls a speed of a vehicle is configured to include an acceleration/deceleration pattern setting unitthat sets a plurality of acceleration/deceleration patterns including acceleration and deceleration in a traveling scheduled zone and sets the speed to be the same in a region between an acceleration region and a deceleration region in each acceleration/deceleration pattern based on traveling history in a traveling scheduled zone.

Vehicle control device

A vehicle control device includes a determination unit, a speed control unit, and a recommended speed acquisition unit. The recommended speed acquisition unit acquires a first recommended speed, being a new recommended speed related to a first section. The determination unit determines a magnitude relationship between the first recommended speed and the first recommended speed. The speed control unit controls the speed of the vehicle to be maintained at a speed of the first recommended speed in the first section when the determination unit determines that the first recommended speed is less than the first recommended speed.

Vehicle control device, vehicle control method, and vehicle

Transmission shocks and idling defects such as engine racing and rough idling due to aging of a throttle opening area are prevented from occurring. An internal combustion engine control apparatus for controlling an internal combustion engine that has an air flow rate sensor for measuring a rate of air represented as an actual air rate, the air flowing into a cylinder, and a throttle valve for adjusting the rate of air, includes a throttle valve controlling section for controlling a throttle opening of the throttle valve to reach a preset throttle opening set depending on a target air rate for realizing a demand torque, and a throttle opening correcting section for correcting the preset throttle opening on the basis of the target air rate upon fuel cutoff that stops a fuel from being supplied to the internal combustion engine and of an actual air rate measured by the air flow rate sensor.

Internal combustion engine control device

The present invention provides a moving object controller and a moving object control method capable of selecting a movement plan based upon detection accuracy of external information. A moving object controllerincludes a plan generation unitthat generates at least one movement plan based upon external information on an external world of a moving objectand internal information on an internal part of the moving object; an accuracy estimation unitthat estimates detection accuracy of the external information based upon the external information, the internal information, and predetermined past information, among the movement plans generated by the plan generation unit; and a plan selection unitthat selects a movement plan of an execution target from among the movement plans generated by the plan generation unit based upon the detection accuracy of the external information estimated by the accuracy estimation unit.

Moving object controller and moving object control method

A novel control device for an internal combustion engine capable of highly accurately estimating an EGR amount (rate) during the transient state is provided. A first EGR rate is determined using, as an input, a detection signal of an EGR sensor provided on the downstream side of a throttle valve which adjusts the flow rate of a mixed gas of air and EGR gas flowing through an intake pipe, a second EGR rate is estimated by calculating a predetermined equation using, as an input, at least a detection signal of an air flow sensor and an EGR valve opening degree sensor, a third EGR rate is determined by carrying out delay processing on the second EGR rate corresponding to a response delay of the EGR sensor, and the second EGR rate is subjected to learning correction by reflecting a difference between the third EGR rate and the first EGR rate.

Control device for internal combustion engine

Provided is a novel control device of an internal combustion engine capable of estimating an EGR rate in a transient state with high accuracy. Thus, in the present invention, unit spaces are formed by dividing a reference space of the intake passage into a plurality of spaces along a streamline through which the gas mixture of the intake air and the EGR gas flows, a physical model based on an advection equation for estimating the EGR rate of the gas mixture is established so as to correspond to each of the unit spaces, and the EGR rate at which the gas mixture flows into the combustion chamber is estimated by sequentially estimating the EGR rates of the unit spaces connected to head unit spaces from the head unit spaces by the physical model.

Provided is a vehicle control device capable of reducing unease experienced by a driver and assisting a lane change of a vehicle. A vehicle control deviceassists a lane change of a vehicle, said device comprising: a visible range calculation unitthat calculates an area as a visible range by excluding the area occupied by preceding vehiclesfrom the area corresponding to the field of vision whilst driving; and a lane-change control unitthat conducts processing related to the lane change, on the basis of the calculated visible range. The lane-change control unitconducts processing related to the lane change on the basis of the visible range of the current-travel lane of the vehicle, and the visible range of the intended change-destination lane of the vehicle.

The purpose of the present invention is to improve fuel efficiency during coasting by calculating, with high accuracy, travel resistance during coasting. This vehicle control device comprises: a first travel resistance acquisition unit that acquires a first travel resistance, which is determined on the basis of road information or external information; and a second travel resistance acquisition unit that acquires a second travel resistance, which is determined on the basis of the result of actual traveling of the vehicle. This vehicle control device determines the content of coasting travel control during traveling of the vehicle on the basis of the result of a comparison of the first travel resistance and the second travel resistance in a predetermined zone where the vehicle has actually traveled.

Introduction of a low fuel consumption technique such as downsizing turbos and idling stop decreases an intake pipe negative pressure (pump loss) of an internal combustion engine, and results in difficulty in emitting (evaporative fuel purge) a volatile fuel (volatile fuel) in a fuel tank by the negative pressure of the intake pipe of the internal combustion engine. A control device includes: a purge control unit which controls a purge valve which emits a volatile fuel of a fuel tank or a canister to an intake pipe of an internal combustion engine; and a power transmission control unit which controls a power transmission mechanism between the internal combustion engine and a drive wheel, and, in a state where the power transmission control unit disconnects a clutch, and the vehicle is coasting, the purge control unit opens the evaporative fuel valve and purges an evaporative fuel to the intake pipe.

Control device that stops fuel injection to an engine during coasting

An anomaly in a high-pressure fuel system of an internal combustion engine is diagnosed early on and with high precision, and, further, the anomaly site is identified. With respect to a diagnostic device for a direct injection internal combustion engine, there is provided: an injection correction amount computation means () that computes an injection correction amount so as to bring a detected air-fuel ratio to a target air-fuel ratio; a fuel injection valve control means () that controls the fuel injection valves with the fuel injection amount corrected based on the injection correction amount; a discharge correction amount computation means () that computes a discharge correction amount so as to bring a detected fuel pressure to a target fuel pressure; a fuel pump control means () that controls the fuel pump with the discharge amount corrected based on the discharge correction amount; a fuel pressure value shifting means () that shifts the value of the detected fuel pressure if the injection correction amount deviates from a predetermined range and until the injection correction amount converges to a given amount within the predetermined range; and an anomaly determination means () that determines which of the fuel pump, the fuel injection valves, and the fuel pressure sensor has an anomaly based on the discharge correction amounts before the fuel pressure values shift starts and after the fuel pressure value shift ends, and on the injection correction amount before the fuel pressure value shift starts.

Diagnostic device for internal-combustion engine

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Tsuchiura, Japan

Yoichi Iihoshi