Patent · US Active

Systems and methods for controlling a variable speed water pump

US9416720B2 · kind B2 · utility

0Cited by

26References

5Claims

0Family size

Assignee

PACCAR Inc · US

Inventors

Tristan Pyle · Bothell, US
René M. P. A. Nevels · Heeze, NL

Key dates

Filing date	Dec 1, 2011
Grant date	Aug 16, 2016
Priority date	—
Expiry date	Mar 19, 2034

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF25B2700/00
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

Systems and methods for providing an improved strategy for controlling a variable speed water pump in a vehicle. In some embodiments, more than one water pump speed function is calculated based on values obtained from vehicle sensors, and a controller chooses among the water pump speed function results to set a water pump speed. In some embodiments, the water pump speed is increased when driveline torque is greater than a threshold amount for an amount of time that varies based on the driveline torque. In some embodiments, ambient temperature is considered while determining whether the water pump should provide full coolant flow to an auxiliary coolant loop of a trailer.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.