Patent classifications
F02D2200/1002
Engine
An engine including a cylinder internal pressure sensor, a torque sensor, and an engine control device. The cylinder internal pressure sensor detects a cylinder internal pressure. The torque sensor detects an engine load. The engine control device receives a detection result of the cylinder internal pressure sensor and a detection result of the torque sensor. If the load detected by the torque sensor is zero (no load) and the cylinder internal pressure obtained from the detection result of the cylinder internal pressure sensor is greater than or equal to a threshold, the engine control device determines that an abnormality occurs in detection by the torque sensor.
System for limiting a revolution speed of an internal combustion engine
A method for limiting a revolution speed of an internal combustion engine (E) of a sports car, the method comprising a first step (Step 1) of acquiring a nominal speed value of said internal combustion engine, a second step (Step 2) of measuring a revolution speed of said internal combustion engine, when (CHK) a measured revolution speed of said internal combustion engine has reached (yes) an activation speed approximately equal to said nominal speed, the method comprising a third step (Step 3) of setting a predetermined initial torque value (a) to be delivered by said internal combustion engine and simultaneously a fourth step (Step 4) of carrying out a feedback control of a torque delivery of said internal combustion engine.
Wheelie controller and control method thereof
A wheelie controller and a control method thereof or preventing a reduction of acceleration that is more than necessary and reducing a shock during a contact of a front wheel with the ground when a wheelie state is terminated. The wheelie controller for controlling a wheelie of a vehicle body computes a target trajectory, which is a target of a parameter and is used to control the wheelie state of the vehicle body, in accordance with the parameter that is related to pitch of the vehicle body and controls an increase/reduction of the pitch of the vehicle body so as to bring the parameter close to the target trajectory.
Method and system for adjusting driver demand torque
Methods and systems are provided for adjusting driver demand wheel torque of a vehicle. The driver demand wheel torque may be adjusted as a function of accelerator pedal position. In particular, at low accelerator pedal positions, a lead-in region of an accelerator pedal position to driver demand wheel torque relationship is adjustable responsive to vehicle operation conditions so that “dead pedal” feel may be avoided.
FUEL TYPE ESTIMATION SYSTEM, DATA ANALYSIS APPARATUS, AND CONTROL APPARATUS FOR FUEL SUPPLY APPARATUS
A fuel type estimation system configured to estimate a type variable related to a type of fuel in an engine system including an engine and a fuel supply apparatus includes a storage device and an execution device. The storage device is configured to store a mapping that uses, as inputs, input variables including an engine variable related to a condition of the engine and outputs the type variable. The execution device is configured to acquire the input variables, and estimate the type variable by applying the acquired input variables to the mapping.
Control device for a VCR connecting rod for determining a defect
A control device for a VCR connecting rod which can be operated by way of an actuation circuit is provided. Such a VCR connecting rod is to enable safe operation. For this purpose, a detection device is provided for determining a defect of the actuation circuit. Furthermore, the invention relates to a respectively associated method for operating an actuation circuit of a VCR connecting rod of an internal combustion engine.
Fuel efficiency based integrated engine firing fraction and transmission ratio selection
A fuel management system includes a memory and a control module. The memory stores fuel rate maps for multiple firing fractions, where: each of the firing fractions corresponds to a respective firing pattern of an engine; at least some of the firing patterns include deactivating one or more cylinders. The control module: for each of the firing fractions, determines a fuel efficiency value for each of multiple transmission gear ratios, where fuel efficiency values are provided for transmission ratio and firing fraction pairs; applies drive ability constraints to provide resultant transmission ratio and firing fraction pairs; subsequent to applying the drive ability constraints and based on the fuel efficiency values, selects one of the resultant transmission ratio and firing fraction pairs; and concurrently operates a transmission and the engine according to the selected one of the transmission ratio and firing fraction pairs.
Method of controlling split inflow of condensate water in hybrid engine
A method of controlling a split inflow of condensate water in a hybrid engine includes: determining whether condensate water is generated from an exhaust gas recirculation (EGR) device of a hybrid electric vehicle (HEV); determining an amount of the condensate water introduced into an hybrid engine; determining whether a vehicle speed of the HEV is within a predetermined speed range; determining whether a request torque of the HEV is within a predetermined torque range; determining whether a duration time of the vehicle speed within the predetermined speed range, and a duration time of the request torque within the predetermined torque range are greater than or equal to a predetermined duration time, respectively; and when the determined duration times are greater than or equal to the predetermined duration time, increasing an engine torque of the HEV.
SYSTEMS AND METHODS FOR UTILIZING CYLINDER DEACTIVATION WHEN A VEHICLE IS IN A REVERSE OPERATING MODE
A controller for a vehicle includes at least one processor and at least one memory storing instructions that, when executed by the processor, cause the controller to perform various operations. The operations include determining that the vehicle is in reverse and in response, deactivating a cylinder of an engine of the vehicle.
Method For Operating An Internal Combustion Engine
The present invention refers to a method for operating an internal combustion engine in a transition operating mode, comprising the steps of determining an initial fuel oxidizer ratio threshold and a demanded fuel oxidizer ratio for a fuel mixture to be supplied to a combustion chamber of the engine, if the demanded fuel oxidizer ratio exceeds the initial fuel oxidizer ratio threshold, the engine is temporally operated in a raised response mode, in which a fuel oxidizer ratio threshold is increased from the initial fuel oxidizer ratio threshold to a raised fuel oxidizer ratio threshold, and a fuel mixture having the demanded fuel oxidizer ratio is supplied into the combustion chamber of the engine.