The present invention provides a novel combination of devices to measure and transmit to an electronic controller data pertaining to differential pressures, temperatures, regeneration status, exhaust content, accumulated gas consumption and substitute fuel consumption. The electronic controller compares the data to thresholds; when the controller receives signals indicating these thresholds or limits are met, the controller causes the gas substitution rate to be diminished or set to zero until after-treatments elements are fully regenerated thereby facilitating integration of a mixed fuel system with an application internal combustion engine.

A method for carrying out an on-board diagnostic function of a vehicle includes activating an on-board diagnostic function of the vehicle and subjecting a predefined gas pedal value of the vehicle to low-pass filtering in order to obtain a smoothed gas pedal value.

An electronic control method for a throttle by an electronic control throttle device that controls the throttle while an electronic control unit generates a control signal based on an input data signal. The method may include calculating an engine rotation speed deviation from a difference between an engine rotation speed and an input engine rotation speed command, calculating an engine rotational acceleration based on the engine rotation speed, obtaining a proportional torque from a product of the engine rotation speed deviation and a predetermined coefficient, obtaining an integral torque by integrating a value obtained by subtracting a product of the engine rotational acceleration and the predetermined coefficient from the product of the engine rotation speed deviation and the predetermined coefficient, and generating a control signal for the throttle by using a sum of the proportional torque and the integral torque as a value of a torque command.

A pedal assembly for a vehicle that includes a pedal, a sensor configured to sense a force exerted on the pedal, and an electronic processor connected to the sensor. The electronic processor is configured to determine a first output value, and receive a signal indicative of the force exerted on the pedal from the sensor. The electronic processor is further configured to determine a second output value based on the force exerted on the pedal, the first output value, and a model that defines a mechanical hysteresis effect and generate an output signal for controlling the vehicle, the output signal corresponding to the second output value.

An engine speed control device for a vessel in which a plurality of outboard motors are mounted on a hull, has a control unit that performs control, on the basis of an operation of one switch, so as to set engines of the outboard motors to a synchronous mode in which the engines have an identical engine speed, wherein the control unit determines in advance an engine to serve as a reference among the engines of the outboard motors, and automatically changes the mode to the synchronous mode in which the engine speeds of engines other than the reference engine become equal to the engine speed of the reference engine when all the engines satisfy a condition to transit to the synchronous mode.

It has been difficult to appropriately determine the abnormality of a drive source due to the influence of variation in driving operation amount and operation state of a vehicle. In this regard, an in-vehicle control device 217 includes: a requested torque calculation unit 100 which calculates a requested torque on the basis of a driving state of a vehicle; a requested torque change amount calculation unit which calculates the amount of change in requested torque per unit time as a requested torque change amount; an estimated generation torque calculation unit 111 which calculates estimated generation torque estimated as being generated by an engine 201; an estimated generation torque change amount calculation unit which calculates the amount of change in estimated generation torque per unit time as an estimated generation torque change amount; and an abnormality detection unit 112 which detects an abnormality of the engine 201 on the basis of the integrated value of a difference between the requested torque change amount and the estimated generation torque change amount, and outputs abnormality determination for the engine 201.

A vehicle includes an engine including a forced induction device, a knock sensor and a crank angle sensor that detect an occurrence of LSPI, a battery that supplies electric power to a second motor generator, and an ECU. When an occurrence of the LSPI is detected, the ECU restricts a maximum torque, which can be output by the engine with the forced induction device, more than when an occurrence of the LSPI is not detected to prevent an engine operating point from being included in an LSPI area, and when an output of the engine becomes insufficient along with the restriction on the maximum torque, the engine compensates for an amount of the insufficient output with electric power supplied from the battery.

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.

A method for setting a throttle valve that includes feedback control of a throttle position of the throttle valve in the entire operating range of an internal combustion engine, wherein the feedback control is based on an internal model control principle.

A work vehicle is provided. The work vehicle is capable of notifying an operator of a state close to overheating of a temperature of a cooling oil that cools a brake device before the temperature overheats. A controller (10) in a work vehicle (100) compares each detection value detected from a brake pressure sensor (26) and a vehicle speed sensor (15) to each threshold (V1, P1, R1) predetermined corresponding to each sensor. The controller (10) outputs a warning command that a temperature of a cooling oil is likely to overheat to a notification device (28) when a state that at least one detection value is equal to or more than the threshold and when a state that at least one detection value is equal to or more than the threshold continues for a first duration (t1) or more.