Honda Motor Co., Ltd.

Honda Giken Kogyo Kabushiki Kaisha

Tsutomu Kamiyamaguchi

Yasuhito Takei

Shoichi Suzuki

Satoshi Terayama

Atsushi Fujikawa

Takumi Shinojima

Kenji Hagiwara

Hiroshi Kimura

Ryuzo Sakamoto

Fumihiro Yoshino

Atsushi Kubota

Ryosuke Itoyama

Ko Yoda

Youhei Takeda

Shuji Kawano

An inspection device for inspecting a vehicle in which drive force generated by a motor is transmitted to a drive wheel via a plurality of gears is provided. The inspection device includes a generation unit configured to cause the motor to generate torque in two rotation directions different from each other, in a state in which the vehicle is stopped, and an estimation unit configured to estimate worn states of the plurality of gears, based on a rotation amount of the motor in accordance with the torque in the state in which the vehicle is stopped.

Inspection device, inspection method, and vehicle

A failure symptom sensing system may comprise an acquisition unit configured to acquire, while a driving function of a vehicle is in operation, a plurality of data from a plurality of sensors configured to sense a state of the vehicle. The failure symptom sensing system may comprise a generation unit configured to generate, from the plurality of data, feature quantity data indicating a feature quantity of each of the plurality of data in accordance with a predetermined algorithm. The failure symptom sensing system may comprise a sensing unit configured to sense, when the sensing unit senses an instruction to stop the driving function of the vehicle, whether an indication of failure of the vehicle exists based on the feature quantity data and a predetermined reference feature quantity data.

Failure symptom sensing system, vehicle, failure symptom sensing method, and computer-readable recording medium

A part management apparatus may include an acquisition unit configured to acquire part information indicating a part having a symptom of a failure among a plurality of parts configuring a drive mechanism mounted to a vehicle. The part management apparatus may include an identification unit configured to refer to a storage unit that is configured to store a material configuring each of the plurality of parts to identify a material of the part indicated by the part information. The part management apparatus may include a notification unit configured to notify a material management apparatus configured to manage an inventory of a material of a part, of information related to the material of the part.

Part management apparatus, part management system, part management method, and computer readable recording medium

The present invention provides a CVT including a transmission mechanism and a planetary gear mechanism which includes a plurality of rotation elements. The transmission mechanism can differentially operate in a predetermined operation mode. The CVT includes a vehicle speed specifying unit for specifying a vehicle speed based on a rotation speed of a rotation member. The unit specifies the vehicle speed from the rotation speed when the rotation speed exceeds a threshold, and specifies the vehicle speed based on a target driving force, a running resistance and a weight of the vehicle when the rotation speed is not more than the threshold.

Continuously variable transmission for vehicle

A simulator comprising computer-aided design programs for simulating a shift control algorithm stored in an ECU of an automatic transmission having hydraulic clutches. In the simulator, a simplified hydraulic model describes the entire system so as to design a third model based on which simulation is conducted. With this, by using such a simplified model, it becomes possible to decrease simulation time to 4 sec., enabling to simulation in a time close to an actual shift of approximately 1.5 sec. Moreover, the durability of transmission is tested by repeating the simulation. When the occurrence of undesirable shift phenomenon is forecast in the simulation, the shift control algorithm is corrected until the phenomenon disappears in the next simulation. With this, the manufacturing of a test transmission and a preliminary test are no longer needed, thereby further improving the efficiency and costs of transmission development.

Simulator for automatic vehicle transmission controllers

Growing community of inventors

Wako, Japan

Tsutomu Kamiyamaguchi