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Class Information
Number: 123/436
Name: Internal-combustion engines > Charge forming device (e.g., pollution control) > Including means responsive to instantaneous change in engine speed
Description: Subject matter in which the charge-forming device includes means to determine instantaneous changes in engine speed (roughness) and adjust the quality of the air-fuel mixture accordingly.










Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12 13

Patent Number Title Of Patent Date Issued
8689768 Apparatus and method for controlling fuel injection of internal combustion engine Apr. 8, 2014
8667952 Method and device for controlling diesel engine with forced induction system Mar. 11, 2014
8660774 Engine governor Feb. 25, 2014
8639431 Fuel identification based on crankshaft acceleration Jan. 28, 2014
8616182 Method and apparatus for controlling an internal combustion engine coupled to a passive selective catalytic reduction aftertreatment system Dec. 31, 2013
8596245 Fuel injection control device of engine Dec. 3, 2013
8600649 Method for starting an internal combustion engine Dec. 3, 2013
8573184 Control apparatus for controlling intake air flow, fuel injection amount, and ignition timing at each cylinder of a multi-cylinder engine Nov. 5, 2013
8555843 Charge bypass system for engine start Oct. 15, 2013
8522746 Fuel management system for variable ethanol octane enhancement of gasoline engines Sep. 3, 2013
8489267 Method and system for adapting engine coolant temperature (ECT) warm-up trajectory based on heater core loading to adjust cabin temperature Jul. 16, 2013
8461791 Inverter for electric vehicle Jun. 11, 2013
8453627 Hybrid vehicle propulsion system utilizing knock suppression Jun. 4, 2013
8454353 Method for evaluating the state of a fuel/air mixture Jun. 4, 2013
8457866 Ignition timing control system for internal combustion engine Jun. 4, 2013
8452510 Pumping brake detection and control device and method for internal combustion engine May. 28, 2013
8447502 Method and system for pre-ignition control May. 21, 2013
8437940 Method for determining whether a crankshaft of an internal combustion engine rotating forward after a reverse rotation is oscillating or continues the forward movement May. 7, 2013
8413643 Multi-fuel engine control system and method Apr. 9, 2013
8401764 Fuel identification based on crankshaft acceleration Mar. 19, 2013
8396644 Control device for internal combustion engine Mar. 12, 2013
8387592 Method and apparatus for operating an internal combustion engine Mar. 5, 2013
8386150 Fuel cutoff transition control systems and methods Feb. 26, 2013
8374770 Method and device for adapting an injection characteristic curve Feb. 12, 2013
8352155 Engine for an agricultural harvester having isochronous torque curve with power bulge Jan. 8, 2013
8340888 System and method for reducing powertrain disturbances based on system energy Dec. 25, 2012
8335634 Transient combustion noise control in a hybrid powertrain including an HCCI engine Dec. 18, 2012
8316821 Method and system for enabling cylinder balancing at low idle speed using crankshaft speed sensor Nov. 27, 2012
8302580 Fuel management system for variable ethanol octane enhancement of gasoline engines Nov. 6, 2012
8306723 Method to control fuel injector pulsewidth in a compression-ignition engine Nov. 6, 2012
8272367 Control system for internal combustion engine Sep. 25, 2012
8265859 Method and system for pre-ignition control Sep. 11, 2012
8261727 Individual cylinder fuel control systems and methods for oxygen sensor degradation Sep. 11, 2012
8224558 Internal combustion engine control apparatus and method Jul. 17, 2012
8200413 Powerplant and related control system and method Jun. 12, 2012
8166951 Engine May. 1, 2012
8170776 Method and device for controlling an internal combustion engine May. 1, 2012
8156923 Method and system for pre-ignition control Apr. 17, 2012
8141540 Method for operating an internal combustion engine Mar. 27, 2012
8141541 Abnormality detection device for internal combustion engine Mar. 27, 2012
8140245 Engine with electronically controlled starting method Mar. 20, 2012
8126638 Engine Feb. 28, 2012
8121775 Misfire detecting device for water jet propulsion watercraft Feb. 21, 2012
8113173 Engine control system having speed-based timing Feb. 14, 2012
8113174 Method for determining the ethanol content of the fuel in a motor vehicle Feb. 14, 2012
8116962 Method of fuel injection Feb. 14, 2012
8109255 Engine controller Feb. 7, 2012
8103425 Simulation-based control for HCCI power systems Jan. 24, 2012
8074623 Method for adjusting the air-fuel ratio of an internal combustion engine Dec. 13, 2011
8065071 Internal combustion engine and associated operating method Nov. 22, 2011

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