電磁弁制御装置および作業車
JP7891906B2Active Publication Date: 2026-07-17KUBOTA CORP
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- KUBOTA CORP
- Filing Date
- 2022-11-17
- Publication Date
- 2026-07-17
AI Technical Summary
Benefits of technology
【0012】 電磁弁に対する制御信号を、環境係数を用いたフィードバック制御により生成する電磁弁制御装置では、環境の状態の変化により制御信号の精度が低下することを抑制するために、走行中に環境係数を更新する。しかしながら、駆動部を始動させた直後では、環境係数が最適化されておらず、環境係数を適切な値に更新するまでの走行(作業走行)の初期段階には、精度良く制御信号を生成し、電磁弁を精度良く制御することが困難である。
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure 0007891906000001 
Figure 0007891906000002 
Figure 0007891906000003
Abstract
To accurately control a solenoid valve even immediately after start of an engine.SOLUTION: A solenoid valve control device for controlling an angle of a swash plate of a hydraulic continuously variable transmission 28 shifting power output from a drive unit 4 by solenoid valves (52A, 52B) in combining the power output from the hydraulic continuously variable transmission 28 with power output from the drive unit 4 by a gear mission 31 and shifting and outputting the power includes: a control signal generation unit 88 for generating a control signal to the solenoid valves (52A, 52B) according to a target current value 92 by feedback control based on an environmental coefficient 95; a coefficient determination unit 86 for determining the environmental coefficient 95 during a learning period until a prescribed time elapses after the start of the drive unit 4; and an operation restriction unit 89 for restricting operations of the solenoid valves (52A, 52B) and the gear mission 31 during the learning period.SELECTED DRAWING: Figure 6
Need to check novelty before this filing date? Find Prior Art