US 11,988,162 B2
Engine intake system control device and control method thereof
Masatoshi Ogawa, Yokohama (JP); and Takuma Degawa, Yokohama (JP)
Assigned to TRANSTRON INC., Yokohama (JP)
Filed by Transtron Inc., Yokohama (JP)
Filed on Jul. 14, 2020, as Appl. No. 16/928,336.
Claims priority of application No. 2019-132090 (JP), filed on Jul. 17, 2019.
Prior Publication US 2021/0017921 A1, Jan. 21, 2021
Int. Cl. F02D 41/00 (2006.01); F02B 37/16 (2006.01); F02B 37/24 (2006.01); F02D 41/14 (2006.01); F02D 41/18 (2006.01); F02D 41/24 (2006.01)
CPC F02D 41/0007 (2013.01) [F02B 37/162 (2019.05); F02B 37/24 (2013.01); F02D 41/1401 (2013.01); F02D 41/18 (2013.01); F02D 41/2451 (2013.01); F02D 2041/1409 (2013.01); F02D 2041/1422 (2013.01); F02D 2041/1423 (2013.01); F02D 2200/0602 (2013.01); F02D 2200/101 (2013.01)] 13 Claims
OG exemplary drawing
 
1. An engine intake system control device configured to control an intake system of an engine, comprising:
a map function configured to input at least a fuel injection pressure of the engine, a fresh air flow, and a compressor outlet temperature of a supercharger, and output a control gain, the control gain including at least one of a proportional gain, an integral gain and a differential gain, and the map function including a map that includes a plurality of control gains corresponding to a plurality of combinations of the fuel injection pressure of the engine, the fresh air flow, and the compressor outlet temperature of a supercharger respectively; and
a controller configured to input the control gain and a deviation between a controlled variable of the intake system of the engine and a target value of the intake system, and variably control a manipulated variable of the intake system of the engine in proportion to at least one of a first value which the controller multiplies the deviation by the proportional gain to obtain, a second value which the controller multiplies the deviation by the integral gain to obtain, and a third value which the controller multiplies the deviation by the differential gain to obtain.