Adaptive high pressure fuel pump system and method of predicting pumping quality
By using an adaptive model to estimate the start position and mass of fuel pumping in real time, the problem of inaccurate fuel pumping quantity prediction is solved, and high-precision fuel control and diagnostic functions are achieved.
CN116066276BActive Publication Date: 2026-04-07CUMMINS-SCANIA HIGH VOLTAGE COMMON RAIL SYST CO LTD
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Patent Information
- Application Number
- CN202310201261.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2018-04-10
- Publication Date
- 2026-04-07
- Estimated Expiration
- 2038-04-10
AI Technical Summary
Technical Problem
In the prior art, it is difficult to accurately predict the amount of fuel pumped during operation, and conventional methods can interfere with engine operation and yield inaccurate results.
Method used
By generating an adaptive model, the pumping start position and fuel quality are estimated in real time using pressure and temperature sensors. The adaptive model is then used to predict the fuel pumping rate, and the pump operation is controlled based on the prediction results.
Benefits of technology
It enables accurate prediction of fuel pumping volume without interfering with engine operation, improving the precision and efficiency of fuel control, and supporting non-intrusive measurement and system diagnostics of fuel injection volume.
✦ Generated by Eureka AI based on patent content.
Abstract
The present invention relates to an adaptive high pressure fuel pump system and a method of predicting pumped quantity. There is provided a method of predicting a quantity of fuel ("Q pump ") pumped by a pump during a pumping event to a fuel accumulator to control operation of the pump, the method comprising: generating a model of operation of the pump, generating the model of operation of the pump comprising: estimating a start of pumping ("SOP") position of a plunger of the pump, estimating Q pump , determining a converged value of the estimated SOP position and determining a converged value of the estimated Q pump ; predicting Q pump using the model by inputting the converged value of the estimated SOP position, a measured fuel pressure in the fuel accumulator and a measured fuel temperature in the fuel accumulator to the model; and controlling operation of the pump in response to the predicted Q pump .
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