-
公开(公告)号：US20180252314A1
公开(公告)日：2018-09-06
申请号：US15756072
申请日：2016-12-14
Applicant: KCM CORPORATION
Inventor： Koji HYODO , Masashi YAMASHITA , Tetsuji TANAKA , Katsutaka HARA , Masaki NUKII , Isamu AOKI
CPC classification number: F16H61/18 , B60K11/085 , B60W30/1843 , B60W50/12 , B60W2510/0633 , B60W2510/0676 , B60W2520/10 , B60W2710/0644 , B60W2720/10 , B60Y2200/41 , B60Y2400/435 , F01P5/04 , F01P7/044 , F01P7/16 , F01P11/10 , F01P2060/02 , F01P2060/14 , F01P2060/16 , F02B37/24 , F02B39/16 , F02B2039/164 , F02D29/02 , F02D29/04 , F02D31/006 , F02D41/0007 , F02D45/00 , F02D2200/021 , F16H59/78 , F16H63/50 , F16H2061/166 , F16H2061/185 , Y02T10/144
Abstract: To curb temperature rises in a control device for a supercharger and extend the life of the control device for the supercharger, a work vehicle includes a variable geometry supercharger with variable boost pressure, and a working device driven by pressure oil discharged from a working hydraulic pump, the work vehicle further including: a supercharger control device adapted to control the supercharger; a temperature detection device adapted to detect temperature of the supercharger control device; and a main control device adapted to limit at least one of maximum rotational speed of an engine and maximum vehicle speed of the work vehicle in case the temperature of the supercharger control device is above a predetermined temperature as compared to case the temperature of the supercharger control device is below the predetermined temperature.
-
公开(公告)号：US20180251026A1
公开(公告)日：2018-09-06
申请号：US15754300
申请日：2017-02-08
Applicant: KCM CORPORATION
Inventor： Masaki NUKII , Koji HYODO , Isamu AOKI , Tetsuji TANAKA
Abstract: The present invention relates to a work vehicle including an engine, a hydraulic pump, a hydraulic motor to drive wheels, an HST circuit in which the hydraulic pump and the hydraulic motor are connected to each other in the form of a closed circuit, a reducing agent sensor that detects the state of a reducing agent used to clean exhaust gas from the engine, and an engine restrictor that restricts the rotational speed of the engine based on the output from the reducing agent sensor, and the work vehicle further includes a control unit that changes the tilting angle of the hydraulic pump or the hydraulic motor independently of the rotational speed of the engine to a tilting angle associated with minimum travel drive force necessary for self-travel of the work vehicle when the control unit determines that the engine restrictor has restricted the rotational speed of the engine.
-
公开(公告)号：US20170274770A1
公开(公告)日：2017-09-28
申请号：US15508554
申请日：2015-11-30
Applicant: KCM Corporation
Inventor： Isamu AOKI , Koji HYODO , Tetsuji TANAKA , Masaki NUKII
CPC classification number: B60K31/045 , B60K31/047 , B60W10/06 , B60W10/10 , B60W2510/0638 , B60W2710/0666 , F01P2023/08 , F02D31/009 , F02D41/0205 , F02D41/0215 , F02D41/0225 , F02D41/042 , F02D2200/1002 , F02D2200/101 , F02D2200/501 , F02D2200/602 , F02D2200/604 , F02D2250/16 , F02D2250/26 , F02D2400/12 , F16H59/18 , F16H59/44 , F16H59/46 , F16H59/70 , F16H59/74 , F16H61/00 , F16H63/50
Abstract: A prime mover control device of a work vehicle equipped with a torque converter includes: a speed ratio calculation unit that calculates a speed ratio of the torque converter; and a rotational speed limit unit that, when a speed ratio falls within a preset speed ratio range, limits a maximum rotational speed of the prime mover to be lower as compared with a maximum rotational speed set when a speed ratio falls without the preset speed ratio range. When a state in which the speed ratio calculated by the speed ratio calculation unit falls within the preset speed ratio range is maintained for a predetermined time period, the rotational speed limit unit changes a maximum rotational speed of the prime mover to a higher maximum rotational speed than the limited maximum rotational speed limited to be lower by the rotational speed limit unit.
-
-
Search Results
3
records
(took 0.009 seconds)
