Title:
COOLING CONTROL METHOD FOR SUPERCHARGER
Document Type and Number:
WIPO Patent Application WO/2023/087945
Kind Code:
A1
Abstract:
A cooling control method for a supercharger, comprising: before a medium temperature system performs a cooling process, an EMS of an engine needing to perform self-inspection; if the system is normal, the EMS needing to determine whether an engine rotational speed is higher than an idle speed threshold; if the engine rotational speed is higher than the idle speed threshold, determining an electronic water pump rotational speed required for satisfying a target air intake temperature under different engine operating conditions and an electronic water pump rotational speed required when the supercharger is not overheated under different operating conditions; performing lower limit constraint on the output of the electronic water pump rotational speeds in the previous step; and if the engine rotational speed is lower than the idle speed threshold, observing whether the change rate of the engine rotational speed is less than 0, and determining whether the supercharger needs to perform post-cooling treatment and other steps. No high-power electronic water pump needs to be newly added in the control method, such that the increasing of cost can be avoided, and boiling in an expansion kettle after a vehicle stalls and halts can also be avoided.
Inventors:
LIN CHENGBO (CN)
SUN YUNLONG (CN)
PENG WEN (CN)
ZHANG XU (CN)
LI ZIQING (CN)
HE YANYING (CN)
SUN YUNLONG (CN)
PENG WEN (CN)
ZHANG XU (CN)
LI ZIQING (CN)
HE YANYING (CN)
Application Number:
PCT/CN2022/122601
Publication Date:
May 25, 2023
Filing Date:
September 29, 2022
Export Citation:
Assignee:
GUANGZHOU AUTOMOBILE GROUP CO (CN)
International Classes:
F01P3/12; F02B29/04; F02B37/12
Foreign References:
| CN106014610A | 2016-10-12 | |||
| CN113027599A | 2021-06-25 | |||
| DE10022967A1 | 2001-11-22 | |||
| CN105673186A | 2016-06-15 | |||
| JP2017031871A | 2017-02-09 | |||
| EP3124765A2 | 2017-02-01 |
Attorney, Agent or Firm:
SHENZHEN SCIENBIZIP INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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