A method for controlling an engine in a motor vehicle includes determining a theoretical inertia of a drivetrain during a change of an operating mode of the engine, detecting an actual inertia in the drivetrain during the change of the operating mode, and increasing a rotational speed of the engine in response to detecting the actual inertia. The method further includes detecting an inertia overcome, determining a difference between the theoretical inertia and the inertia overcome, and reducing the rotational speed of the engine if the difference becomes less than a threshold value.

A rotary member inspection method of inspecting a rotation operation of a rotary member configured to rotate about a rotation shaft includes: causing the rotary member to perform forward rotation and thereafter perform reverse rotation; acquiring one or both of a difference value between a rotating torque at a time of the forward rotation of the rotary member and a rotating torque at a time of the reverse rotation of the rotary member, and an inertia force at a time of switching from the forward rotation to the reverse rotation of the rotary member; and determining whether a rotation failure of the rotary member is present based on one or both of the acquired difference value and the acquired inertia force and a threshold set in advance.

Provided is a state determination device for an internal combustion engine. The state determination device includes a storage device, and an execution device. The storage device stores mapping data that is data defining a mapping that outputs a determination result of a state of the internal combustion engine, by using an internal combustion engine state variable as an input. The execution device executes an acquisition process of acquiring the internal combustion engine state variable each time a crankshaft rotates by a specified angle, and a determination process of determining the state of the internal combustion engine based on an output of the mapping using the internal combustion engine state variable as an input. The execution device omits a part of the determination process performed each time the crankshaft rotates by the specified angle when a rotation speed of the crankshaft becomes equal to or higher than a predetermined threshold.

A wiper system for vehicles is provided. The system includes a heated wiper blade assembly, a heated cowl assembly and a controller. The controller receives input from one or more sensors or systems and causes a power source to provide, reduce or stop power to heating elements in the blade and/or cowl depending upon sensed conditions. At least some components in the assembly comprise thermally conductive polymers. The system provides surprisingly advantageous results in that it is effective for melting and clearing ice and snow with a lower than expected pull on a power source such as a battery.

A method for diagnosing an engine in a vehicle, the method comprising: initiating a diagnostic test of the engine, disabling a cylinder of the engine, measuring a parameter indicative of performance of the engine, re-enabling the cylinder, comparing the parameter to reference data, assessing a status of the cylinder based on the comparison, and generating a diagnostic result based on the status of the disabled cylinder.

A wiper system for vehicles is provided. The system includes a heated wiper blade assembly, a heated cowl assembly and a controller. The controller receives input from one or more sensors or systems and causes a power source to provide, reduce or stop power to heating elements in the blade and/or cowl depending upon sensed conditions. At least some components in the assembly comprise thermally conductive polymers. The system provides surprisingly advantageous results in that it is effective for melting and clearing ice and snow with a lower than expected pull on a power source such as a battery.

A wiper system for vehicles is provided. The system includes a heated wiper blade assembly, a heated cowl assembly and a controller. The controller receives input from one or more sensors or systems and causes a power source to provide, reduce or stop power to heating elements in the blade and/or cowl depending upon sensed conditions. At least some components in the assembly comprise thermally conductive polymers. The system provides surprisingly advantageous results in that it is effective for melting and clearing ice and snow with a lower than expected pull on a power source such as a battery.

Systems and methods for detecting at least one non-functional combustion chamber of an engine comprising a plurality of combustion chambers are described herein. In response to detecting a partial output power loss of the engine, one of the plurality of combustion chambers is assessed by monitoring an engine parameter indicative of an output power of the engine, determining whether a change in the engine parameter has occurred, when the change has occurred, determining that the combustion chamber is functional, and when no change has occurred, determining that the combustion chamber is non-functional and discontinuing fuel injection to the non-functional combustion chamber.

A dynamic system for an observer for estimating the internal effective torque of a torque generator, which can also process unfiltered measurement signals and is capable of mapping vibration effects in the estimated effective torque. An observer is designed with observer matrices and with an unknown input. The observer receives at least one noisy measurement signal of the input vector and/or the output vector. The observer estimates the state vector and the effective torque therefrom as unknown input in that the matrix, which determines the dynamic of the observer error as a difference between the state vector and the estimated state vector. The eigenvalues of this matrix lie in a range f2/5>>5.Math.f1, wherein f1 is the maximum expected change frequency of the at least one measurement signal, and the noise in the at least one measurement signal influences the frequency band which is greater than the frequency f2.

Methods and systems for monitoring component integrity during operation of an engine are provided. Usage data associated with a period of operation of the engine is obtained at an engine controller. The engine controller has assigned thereto a first trust level. A first indication of the usage data is transmitted from the engine controller to a first presentation device forming part of a first communication path, which has assigned thereto a second trust level lower than the first trust level. A second indication of the usage data is transmitted from the engine controller to a second presentation device forming part of a second communication path, which is independent from the first communication path and has assigned thereto the second trust level. The trust level of the first and second communication paths is elevated by having the usage data transmitted through the first and second independent communication paths.