Invention Grant
- Patent Title: Electromagnetic valve control device and work vehicle
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Application No.: US18379335Application Date: 2023-10-12
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Publication No.: US12055212B2Publication Date: 2024-08-06
- Inventor: Tetsuo Yamaguchi , Ryoma Iwase
- Applicant: KUBOTA CORPORATION
- Applicant Address: JP Osaka
- Assignee: KUBOTA CORPORATION
- Current Assignee: KUBOTA CORPORATION
- Current Assignee Address: JP Osaka
- Agency: Keating & Bennett, LLP
- Priority: JP 22184326 2022.11.17
- Main IPC: F16H61/40
- IPC: F16H61/40 ; F16H47/04 ; F16H59/70 ; F16H61/02 ; F16H59/36 ; F16H59/40

Abstract:
An electromagnetic valve control device includes a current gear ratio obtainer to obtain a current gear ratio as a ratio of an output revolutions number of a driver and an output revolutions number of a transmission, a current electric current value obtainer to obtain a current electric current value as a value of an electric current to be inputted to a first electromagnetic valve or a second electromagnetic valve, and a switching controller to, based on the current electric current value and a gear ratio difference as a difference between a target gear ratio and the current gear ratio, perform electromagnetic valve switching control to switch between use of the first electromagnetic valve to control a pump swash plate and use of the second electromagnetic valve to control the pump swash plate.
Public/Granted literature
- US20240167562A1 ELECTROMAGNETIC VALVE CONTROL DEVICE AND WORK VEHICLE Public/Granted day:2024-05-23
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