EP 3916208 A4 20220720 - METHOD AND SYSTEM FOR CONTROLLING ELECTRONIC WATER PUMP OF ENGINE
Title (en)
METHOD AND SYSTEM FOR CONTROLLING ELECTRONIC WATER PUMP OF ENGINE
Title (de)
VERFAHREN UND SYSTEM ZUR STEUERUNG EINER ELEKTRONISCHEN WASSERPUMPE EINES MOTORS
Title (fr)
PROCÉDÉ ET SYSTÈME POUR COMMANDER UNE POMPE À EAU ÉLECTRONIQUE D'UN MOTEUR
Publication
Application
Priority
- CN 201910069236 A 20190124
- CN 2020072190 W 20200115
Abstract (en)
[origin: EP3916208A1] The present invention provides a method for controlling an electronic water pump of an engine. The method includes: acquiring a target temperature of a water outlet of the engine and a basic pump speed of the electronic water pump; acquiring a PID control correction coefficient based on the target temperature of the water outlet of the engine and the measured temperature of the water outlet of the engine; acquiring an environment temperature correction coefficient, and acquiring a target revolving speed of the electronic water pump based on the basic pump speed of the electronic water pump, the PID control correction coefficient, and the environment temperature correction coefficient; and controlling the electronic water pump of the engine by using the target revolving speed of the electronic water pump. The present invention also provides a system for controlling an electronic water pump of an engine. According to the present invention, the control of a target revolving speed of the electronic water pump is performed in two steps. Step 1, the target revolving speed of an electronic fan and a basic pump speed are output to realize the pre-control, thereby improving the system responsiveness. Step 2, the basic pump speed is corrected according to PID and an environment temperature together such that the control precision is improved.
IPC 8 full level
F01P 7/16 (2006.01); F04D 15/00 (2006.01)
CPC (source: CN EP)
F01P 7/16 (2013.01 - CN); F01P 7/164 (2013.01 - CN EP); F01P 7/167 (2013.01 - CN); F04D 15/0066 (2013.01 - EP); F01P 2007/168 (2013.01 - CN); F01P 2025/13 (2013.01 - EP); F01P 2025/32 (2013.01 - EP); F01P 2025/36 (2013.01 - EP)
Citation (search report)
- [XA] CN 106246328 A 20161221 - GUANGZHOU AUTOMOBILE GROUP CO
- [XA] US 6662761 B1 20031216 - MELCHIOR GERARD [DE]
- [XA] US 2006185626 A1 20060824 - ALLEN DAVID J [US], et al
- See references of WO 2020151544A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 3916208 A1 20211201; EP 3916208 A4 20220720; CN 110805487 A 20200218; CN 110805487 B 20201027; WO 2020151544 A1 20200730
DOCDB simple family (application)
EP 20744840 A 20200115; CN 201910069236 A 20190124; CN 2020072190 W 20200115