- 专利标题: Variable pitch fan control system
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申请号: US18328443申请日: 2023-06-02
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公开(公告)号: US11988132B2公开(公告)日: 2024-05-21
- 发明人: Manoj T. Muttepawar , Nishant Kharche , Darren J. Cruchelow , Jason E. Haubenstricker , Scott N. Clark
- 申请人: DEERE & COMPANY
- 申请人地址: US IL Moline
- 专利权人: DEERE & COMPANY
- 当前专利权人: DEERE & COMPANY
- 当前专利权人地址: US IL Moline
- 优先权: IN 2021022332 2020.05.28
- 主分类号: F04D27/00
- IPC分类号: F04D27/00 ; B60K11/06 ; F01P5/04 ; F01P7/06 ; F04D19/00 ; A01D69/00
摘要:
A fan control system for a variable pitch fan of a work vehicle includes a blade pitch module that adjust a pitch of a plurality of blades of the variable pitch fan to generate airflow in a first direction. A reversing module selectively commands a fan reversal that includes instructing the blade pitch module to temporarily adjust the pitch of the plurality of blades to generate airflow in a second direction. A first timer module, in response to the reversing module commanding the fan reversal, resets and increments a first timer and compares the first timer to a first threshold. A first reversal prevention module, in response to the first timer being less than the first threshold, prevents the reversing module from commanding a fan reversal by indicating that a first type of fan reversal is not permitted.
公开/授权文献
- US20230313730A1 Variable Pitch Fan Control System 公开/授权日:2023-10-05
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