Nissan Motor Company Limited

Jatco Corporation

Sumitomo Heavy Industries, Ltd.

Sumitomo(s.h.i.) Construction Machinery Co., Ltd.

Renault S.a.s.

Ampere S.a.s.

Masato Koga

Satoshi Takizawa

Mitsuru Watanabe

Tateki Jozaki

Hiroyasu Tanaka

Hideaki Suzuki

Masaaki Uchida

Seiichiro Takahashi

Shigeki Shimanaka

Mamiko Inoue

Tatsuo Ochiai

Ryousuke Nonomura

Ryoji Kadono

Junya Takayama

Ryohey Toyota

Atsushi Tsukizaki

Masatoshi Akanuma

Hiroyuki Fukuda

Hidekazu Yagi

Takayuki Kagaya

Yuusuke Minagawa

Yasushi Narita

Takashi Matsuda

Hironori Nihei

Yoshitaka Miura

Tomohiro Miyagawa

Yuuki Nakajima

Keita Okudaira

Katsunori Tanaka

Kenichi Mori

Takayuki Suzuki

Tetsuya Iwasaki

Yasutaka Kawamura

Shinobu Kamada

Tetsuji Ono

Masahito Indoh

Takashi Hara

Takashi Kurita

Masaki Ogawa

Hiroso Shono

Kenichiro Gunji

Kazuhiro Takaki

Takashi Kubo

Tadao Osuka

Koki Tomoda

A shovel management device includes a training part to determine a relationship between operation data of the shovel and an abnormality of the shovel by using, as training data, a data set that includes, among the operation data indicating the operation of the shovel, the operation data corresponding to a period for determining a presence or absence of the abnormality of the shovel as an input and information indicating the absence of the abnormality as an output.

Shovel management device, shovel management system, shovel support device, and shovel

An excavator includes a comparing part configured to compare first image data obtained by capturing, at a first timing, a bucket in a specified orientation, with second image data obtained by capturing, at a second timing different from the first timing, the bucket in the specified orientation; and an output part configured to output a comparison result obtained by the comparing part.

Excavator and management apparatus for excavator

A shovel includes a data acquisition device and a storage. The data acquisition device acquires operation information indicating a status of each part of the shovel during operation of the shovel and sound data during operation of the shovel, from a state detecting sensor, and wherein the storage stores the operation information in association with the sound data.

Shovel, shovel management device, shovel management system, shovel supporting device

A hybrid vehicle includes two drive sources and two clutches, and is switchable between a neutral mode and a parallel mode during vehicle traveling. The two drive sources are both disconnected from drive wheels in the neutral mode, and are both connected to the drive wheels in the parallel mode. A control method for the hybrid vehicle includes implementing at least one of a first switching control and a second switching control. The first switching control includes, upon switching from the neutral mode to the parallel mode, implementing two synchronization controls on rotational speeds before and after the two clutches, concurrently during at least a partial period. The second switching control includes, upon switching from the parallel mode to the neutral mode, implementing two controls to cause transmitted torques of the two clutches to respectively approach zero, concurrently during at least a partial period.

Control method and control device for hybrid vehicle

A shovel includes a hardware processor configured to collect diagnostic data from a condition detecting sensor and to detect an abnormality based on the collected diagnostic data. The hardware processor is configured to continue to collect the diagnostic data, after detection of the abnormality during collection of the diagnostic data.

Shovel

A clutch control method is used in a vehicle that has a dog clutch and an engagement sensor, which detects an engagement of a dog clutch. The clutch control method includes executing an engagement of the dog clutch when a magnitude of a differential rotation of the dog clutch is less than or equal to a prescribed value when the engagement sensor is normal and then determining the engagement of the dog clutch using the engagement sensor. The clutch control method further includes setting the differential rotation of the dog clutch to a value larger than the prescribed value when the engagement sensor has failed and then determining the engagement of the dog clutch based on a difference between the differential rotation of the dog clutch at a time of starting the engagement of the dog clutch and the differential rotation of the dog clutch.

Vehicle clutch control method and vehicle clutch control device

A drive system of an electric vehicle includes: an internal combustion engine; a generating motor provided so as to be able to generate electricity by receiving motive force from the internal combustion engine; and a travel motor provided so as to be able to be driven by electric power generated by the generating motor, and the drive system is configured so as to be able to switch a series hybrid mode and an engine direct connected mode, the series hybrid mode being a mode in which, while the internal combustion engine and the drive wheel are linked via a first clutch so as to be unlinkable/linkable, the travel motor and the drive wheel are linked via a second clutch different from the first clutch so as to be unlinkable/linkable, and the travel motor is used as a drive power source such that the electric vehicle travels by transmitting motive force from the travel motor to the drive wheel, the engine direct connected mode being a mode in which at least one of the internal combustion engine and the generator is used as a drive power source such that the electric vehicle travels by transmitting motive force from the drive power source to the drive wheel. At a mode switching time from the engine direct connected mode to the series hybrid mode involving deceleration, when the rotation synchronization or the engagement of the second clutch on an engagement side is not completed before the vehicle speed is decelerated to a predetermined vehicle speed, the first clutch on a disengagement side is disengaged before the engagement of the second clutch is completed.

Technical field of method of controlling electric vehicle and drive system of electric vehicle

A power transmission device of the present invention is a power transmission device for a vehicle, including: a generator configured to be driven by power of an internal combustion engine; a travel motor configured to be driven by electric power generated by the generator and to drive a drive wheels; and the drive wheels configured to be driven by the power of the internal combustion engine or power of the travel motor. The power transmission device includes: a first power transmission path configured to transmit power between the travel motor and the drive wheels; and a first clutch mechanism configured to allow or interrupt power transmission through the first power transmission path.

Power transmission device for vehicle

A shovel includes a lower traveling body, an upper turning body turnably mounted on the lower traveling body, a cab mounted on the upper turning body, an operating information obtaining device configured to obtain operating information, and a processor configured to store the operating information. The processor is configured to obtain the biological information of an operator in the cab and to correlate the biological information and the operating information.

Shovel, assist device for shovel, and management apparatus for shovel

A vehicle drive apparatus includes an internal combustion engine, an electric-power-generating-motor gear train, a drive gear, a driven gear, a differential, a low clutch and a high clutch. The electric-power-generating-motor gear train and the driven gear are arranged on a first plane. The drive gear, the driven gear, and the differential are arranged on a second plane. The low clutch and the high clutch are arranged on a third plane.

Vehicle drive apparatus

The method includes, based on a torque variation of a drive shaft after an engagement timing of an engine clutchand before a release timing of a motor clutchwhen switching a power transmission path from a first power transmission pathto a second power transmission path, increasing a slope of a torque increase of a power generation motorin an absolute value with respect to a slope of a torque decrease of a traveling motorin at least a part of a period from a timing Tto a timing T, and increasing a slope of a torque decrease of the power generation motorin the absolute value with respect to a slope of a torque increase of the traveling motorin at least a part of a period from the timing Tto a timing T

Power transmission method for vehicle and power transmission device for vehicle

A shovel includes a lower traveling body, an upper rotating body that is rotatably mounted on the lower traveling body, an attachment attached to the upper rotating body, state detecting sensors that detect operational states of components of the shovel and include an attitude sensor that detects an attitude of the attachment, a controller that executes a preset operation based on a detection value detected by the attitude sensor, and a storage that stores detection values detected by the state detecting sensors during execution of the preset operation by the controller in association with the preset operation.

Shovel, method for controlling shovel, and mobile information terminal

A construction machine work management system including a construction machine, an aircraft equipped with a camera, and a management device is provided. The construction machine work management system includes a processor configured to execute a program stored in a memory to implement processes of specifying a progress region within a work site on which work progress has been made by the construction machine, and setting up a flight path of the aircraft so that the camera of the aircraft can capture an image of the progress region.

Construction machine work management system and construction machine

A drive system is provided with a first motor generator as a power source, and a multistage gear transmission for changing the speed of output from the first motor generator and transmitting the output to drive wheels. The multistage gear transmission has a plurality of engagement clutches as shifting elements that are meshingly engaged upon movement from a disengaged position. This hybrid vehicle is provided with a start control device where, when a start clutch has been engaged while the vehicle is stopped, the start control device maintains the engagement of the start clutch for a duration that includes when the vehicle is stopped and until the next vehicle start.

Electrically driven vehicle start control device

A hybrid vehicle start control device is provided for a hybrid vehicle that ensures an EV reverse starting intended by a driver, even when an engagement command is issued to an engagement clutch that selects an ICE gear shift stage, when carrying out EV reverse starting. In this hybrid vehicle, a multistage gear transmission includes an EV shift actuator that selects an EV gear shift stage, and ICE shift actuators that select an ICE gear shift stage. A starting controller operates the EV electric actuator to select EV 1st of the multistage gear transmission at a time of starting, and that carries out an EV starting using the first motor/generator. At a time of an EV reverse starting, the starting controller carries out a control to the operating positions of the ICE shift actuators that prevent the selection of the ICE gear shift stage by the ICE shift actuators.

Start control device for hybrid vehicle

Growing community of inventors

Kanagawa, Japan

Masato Koga