US 11,835,011 B2
Method and motor controller for multiple injections with quantity correction for an internal combustion engine
Peter Senft, Rieden (DE)
Assigned to Vitesco Technologies GmbH, Regensburg (DE)
Filed by Vitesco Technologies GmbH, Regensburg (DE)
Filed on Jun. 11, 2022, as Appl. No. 17/806,484.
Application 17/806,484 is a continuation of application No. PCT/EP2020/082499, filed on Nov. 18, 2020.
Claims priority of application No. 10 2019 219 541.5 (DE), filed on Dec. 13, 2019.
Prior Publication US 2022/0298989 A1, Sep. 22, 2022
Int. Cl. F02D 41/40 (2006.01); F02D 41/20 (2006.01)
CPC F02D 41/402 (2013.01) [F02D 41/20 (2013.01); F02D 2041/2058 (2013.01); F02D 2200/0616 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A method for injecting a predetermined total fuel quantity via multiple injections using a fuel injector having a solenoid drive for an internal combustion engine of a motor vehicle, the method comprising:
determining a first target injection quantity to be injected per injection to inject the total fuel quantity throughout a series of consecutive injections;
carrying out a first subseries of consecutive injections, wherein the fuel injector is actuated according to the first target injection quantity;
determining a first fuel quantity injected during the first subseries of injections;
determining a second target injection quantity to be injected per injection in a second subseries of consecutive injections, to inject the total fuel quantity throughout the first subseries and the second subseries of consecutive injections; and
carrying out the second subseries of injections, wherein the fuel injector is actuated according to the second target injection quantity,
wherein the second subseries includes less injections than the first subseries, and
wherein the second target injection quantity is equal to a difference between the predetermined total fuel quantity and the determined first injected fuel quantity divided by a number of injections in the second subseries.