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| Number | Title | Issue Date |
| 8190351 | Diagnostic control apparatus for internal combustion engines Disclosed is a diagnostic control apparatus for internal combustion engines capable of accurately diagnosing the presence and extent of air/fuel ratio variations in engine cylinders, even when the system has no part for detecting the air/fuel ratio in each cylinder.... | 05/29/2012 |
| 8190352 | Method and device for diagnosing an exhaust gas catalytic converter A first exhaust gas sensor signal (vls_up) of a first exhaust gas sensor (AS1) is detected. In addition, a second exhaust gas sensor signal (vls_down) of a second exhaust gas sensor (AS2) is detected. A relevant first estimated value of an emission of ... | 05/29/2012 |
| 8170779 | Abnormality diagnosis device for exhaust heat recovery equipment An abnormality diagnosis device is for an exhaust heat recovery equipment including an exhaust heat absorption part absorbing exhaust heat from an engine, a heat release part releasing at least part of the heat absorbed by the absorption part to engine coolant, a ci... | 05/01/2012 |
| 8165789 | Vehicle diagnostic tool—determining the efficiency of a catalytic converter An analysis tool which extracts all the available parameter identifications (i.e. PIDS) from a vehicle's power train control module for diagnostic decisions. This is done by checking these PIDS and other information (e.g., calculated PIDS, Break Points, charts and a... | 04/24/2012 |
| 8140248 | System and method for obtaining an optimal estimate of NOx emissions A control system for providing an optimal estimate of NOx emission in an exhaust during a selective catalytic reduction process is provided. The control system includes a continuous emission monitoring sensor configured to generate a responsive signal representing a... | 03/20/2012 |
| 8131455 | Engine control apparatus including computing section and A/D converting section The engine control apparatus includes a computing section which performs computation for engine control in synchronization with rotation of an engine, and an A/D converter which A/D-converts an analog signal necessary for the computing section to perform the computa... | 03/06/2012 |
| 8121775 | Misfire detecting device for water jet propulsion watercraft A misfire detecting device is provided for a water jet propulsion watercraft in which a propulsion unit operates through an operation of an engine to propel the water jet propulsion watercraft. The misfire detecting device includes injectors arranged to inject fuel ... | 02/21/2012 |
| 8112218 | Method for controlling an engine A method for reducing a temperature of an engine component is disclosed. In one example, an air-fuel ratio provided to an engine is adjusted to reduce a temperature of an engine component. The approach may be useful for controlling temperature and emissions from a t... | 02/07/2012 |
| 8103433 | Method to detect a faulty operating condition during a cylinder cutoff of an internal combustion engine Method to detect a faulty operating condition during a cylinder cutoff of an internal combustion engine with at least two cylinder banks, wherein the internal combustion engine comprises in each case a separate mechanism to determine the Lambda value of the combusti... | 01/24/2012 |
| 8086392 | Post oxygen sensor performance diagnostic with minimum air flow An engine control system includes an oxygen (O2) sensor diagnostic module that diagnoses an O2 sensor and requests a minimum air per cylinder (APC). A throttle actuator module controls a throttle to adjust a mass air flow based on the minimum A... | 12/27/2011 |
| 8078389 | Method and apparatus for determining a normal combustion characteristic for an internal combustion engine from an accelerometer signal The method comprises operating a calibration engine, and collecting combustion characteristic data and reference accelerometer signals, which are correlated with each other and stored in a calibration table. The calibration table can be used by an engine to determin... | 12/13/2011 |
| 8024109 | Abnormality determination apparatus for intake amount control mechanism An abnormality determination apparatus for an intake amount control mechanism according to the invention includes a control portion which sets an allowable range of an opening amount of a throttle valve which provided in an intake passageway of an internal combustio... | 09/20/2011 |
| 8024108 | Method for monitoring the secondary air system in an exhaust-gas purification system The individual cylinders of the internal combustion engine are divided into at least two cylinder banks wherein each is assigned a separate exhaust-gas channel. Secondary air is conveyed by a compressor. The flow of the secondary-air mass flow is set independently b... | 09/20/2011 |
| 8014935 | Control device for internal combustion engine In this apparatus, maintaining control (time t1 to t2) which instructs fixing of the open timing VVT of an intake valve is executed in a predetermined low load state. Subsequently, there are executed changing control which instructs changing of the ope... | 09/06/2011 |
| 8010277 | Fuel injection controller and diagnosis method of fuel supply system A fuel injection controller (incorporated in an engine control ECU) for controlling an injection operation of an injector has a program for executing injections in plural injection patterns including an injection pattern of a multiple injection in a certain order in... | 08/30/2011 |
| 8010278 | Control apparatus for internal combustion engine An engine is operated with air-fuel ratio F/B control interrupted, by regarding an alcohol concentration value ALC1 inputted from outside as a tentative concentration value, and by detecting the rotation-speed fluctuation amount of an engine, the appropriaten... | 08/30/2011 |
| 7987044 | Control device for internal combustion engine A control device 10 for an internal combustion engine 80 includes an injector drive circuit 90 that drives an injector 30 that injects fuel and a temperature detection device that at least detects timing when a temperature condition that ... | 07/26/2011 |
| 7980120 | Fuel injector diagnostic system and method for direct injection engine A fuel injector diagnostic system includes a fuel pump control module, a pressure sensor, and a diagnostic module. The fuel pump control module disables delivery of fuel to a fuel rail of an engine. The pressure sensor measures a first pressure of the fuel rail befo... | 07/19/2011 |
| 7983834 | Method and device for operating an internal combustion engine A method and a device for operating an internal combustion engine having at least one mass flow line and a cooling device for cooling the mass flow in the mass flow line, as well as a bypass, having a bypass valve, that bypasses the cooling device. When the bypass v... | 07/19/2011 |
| 7970528 | Gaseous fuel management system for automotive vehicle A gaseous fuel management system for an automotive vehicle includes at least one gas sensor for detecting the presence of gaseous fuel outside of the confines of the vehicle's fuel storage tank, fuel lines, and prime mover. In the event that fugitive gas is detected... | 06/28/2011 |
| 7949462 | Internal combustion engine system, control method thereof, and vehicle Upon no detection of the closing abnormality where the EGR valve does not become in the totally closed state (when the flag Fa is value ‘0’), the engine is controlled using the target fuel injection amount obtained from the correction of the basic fuel injection... | 05/24/2011 |
| 7937213 | Method for controlling an engine provided with an exhaust gas recycling loop An engine control, and in particular a method for controlling an engine including a low-pressure exhaust gas recycling loop. The method adjusts a predetermined engine operating parameter by controlling the position of an exhaust gas recycling valve, which is placed ... | 05/03/2011 |
| 7933712 | Defective injection detection device and fuel injection system having the same A pressure sensor is located in a fuel passage, which extends from a pressure-accumulation vessel to a nozzle hole of a fuel injection valve. The pressure sensor is located closer to a nozzle hole than the pressure-accumulation vessel for detecting pressure fluctuat... | 04/26/2011 |
| 7930093 | Method and system for filtering a disturbed cylinder pressure signal from a cylinder in an internal combustion engine For at least one disturbance variable of the cylinder pressure signal, which disturbance variable occurs only during specific limited time spans as the pressure profile of an operating cycle, a filter tuned to the type of disturbance variable is fixed and is assigne... | 04/19/2011 |
| 7894977 | Method for increasing the resolution of output signals from at least one measuring sensor on an internal combustion engine and corresponding controller The resolution of output signals from at least one measuring sensor on an internal combustion engine can be increased by: the working level range of the sensor is divided into at least two range sections, each section is provided with the same given output level ran... | 02/22/2011 |
| 7890245 | Diagnostic method and device for controlling an internal combustion engine A device and a method for controlling an internal combustion engine, in which an actual value is determined based on a lambda value and compared with a setpoint value. Based on the comparison, a correction value for a controlled variable is determined and stored. An... | 02/15/2011 |
| 7877194 | Diagnosis method for solenoid valve based on noise detection A solenoid valve includes cyclically energizing and deenergizing a solenoid of the solenoid valve to repeatedly fully open and fully close the solenoid valve. When the energizing and deenergizing causes collisions of a moving member of the solenoid valve against at ... | 01/25/2011 |
| 7869933 | Temperature sensing coordination with engine valve timing using electric valve actuator A method of operation for an engine including an electrically actuated engine valve in a cylinder head, with at least an actuator coupled to the valve, the method including applying a potential to generate a current indicative of temperature in the actuator at least... | 01/11/2011 |
| 7860638 | Method for determining fuel injection pressure A method for determining fuel injection pressure or detecting a discrepancy in the fuel injection process of an internal combustion engine is provided. The engine includes a camshaft that actuates at least one fuel injector of the engine's fuel injection equipment. ... | 12/28/2010 |
| 7840337 | Method for controlling an overrun condition of a hybrid vehicle and hybrid vehicle A method is for controlling an overrun condition in a hybrid vehicle having a combustion engine and additionally at least one electric motor as well as an overrun fuel cutoff, which interrupts a fuel supply to the combustion engine when the vehicle is in an overrun ... | 11/23/2010 |
| 7840336 | Control system for gas turbine aeroengine In a gas turbine aeroengine control system, in Ch-A (first control channel), a first CPU monitors the operation of a second CPU and the second CPU monitors the operation of the first CPU; in Ch-B (second control channel), third and fourth CPUs similarly monitor each... | 11/23/2010 |
| 7835852 | Apparatus for detecting and identifying component failure in a fuel system A detector for detecting the operational status of one or more fuel pumps in a fuel system of a vehicle, the system comprising an accumulator volume for storing high pressure fuel, one or more injectors arranged in fluid communication with the accumulator volume and... | 11/16/2010 |
| 7831378 | System and method for estimating NOx produced by an internal combustion engine A system and method are provided for estimating NOx produced by an internal combustion engine. The flow rate of fuel supplied to the engine and a plurality of engine operating parameters are monitored. NOx produced by the engine is estimated based on a product of th... | 11/09/2010 |
| 7826962 | Electronic control apparatus The electronic control apparatus includes a microcomputer having a control function of controlling an actuator mounted on a vehicle in accordance with an input signal indicative of a running state of the vehicle, and a self-monitoring function of monitoring whether ... | 11/02/2010 |
| 7826963 | Diagnostic system for spark ignition direct injection system control circuits An engine control system includes a driver module and a diagnostics module. The driver module includes a high-side driver and a low-side driver, which selectively actuate a load. The driver module generates status signals based on detection of each of a plurality of... | 11/02/2010 |
| 7822537 | Detection of faults in an injector arrangement A method of detecting faults in an injector arrangement in an engine. The injector arrangement comprises at least one fuel injector having a piezoelectric actuator, and the method comprises: charging the piezoelectric actuator during a charge phase (tC); ... | 10/26/2010 |
| 7813869 | Prediction based engine control system and method A prediction based engine control system is disclosed. The engine control system may have sensor configured to sense a current engine operation and generate a corresponding signal and a controller in communication with the sensor. The controller may be configured to... | 10/12/2010 |
| 7792633 | Ignition coil module fuse diagnostic A control system comprising an ignition fuse diagnostic module that determines a state of an ignition fuse associated with an ignition coil of an engine cylinder, and a fuel control module that selectively operates a fuel injector associated with the engine cylinder... | 09/07/2010 |
| 7788024 | Method of torque integral control learning and initialization A torque control system comprises a torque correction factor module, a RPM-torque transition module, and a selection module. The torque correction factor module determines a first torque correction factor and a second torque correction factor. The RPM-torque transit... | 08/31/2010 |
| 7761223 | Fuel system diagnostics by analyzing engine cylinder pressure signal and crankshaft speed signal A method for distinguishing between combustion issues and sensor faults within an engine includes monitoring pressure sensor data from a cylinder within the engine, monitoring engine data describing combustion health from a source other than a pressure sensor, analy... | 07/20/2010 |
