A sensor device for determining at least one parameter of a fluid medium flowing through a duct, e.g., an intake air mass flow of an internal combustion engine, includes: a sensor housing, e.g., a sensor plug that is placed or that can be placed into a flow tube, in which the duct is fashioned; and at least one sensor chip situated in the duct for determining the parameter of the fluid medium. The sensor chip has a sensor area. The sensor housing has an inlet into the duct that is oriented opposite a main direction of flow of the fluid medium, and has at least one outlet from the duct. The sensor area is covered at least partly by an electrically conductive layer.

A method for operating an ignition device for an internal combustion engine, in which via a rotating magnetic pole wheel a voltage signal with a number of positive and negative half-waves is produced in at least one coil arrangement that is located on a core leg of an iron core during each rotation of the magnetic pole wheel, wherein the voltage signal is used to determine the gap width of the air gap between the magnetic pole wheel and the core leg.

The present disclosure provides an air flow rate measuring including a casing and a sensor. The casing includes a main-bypass passage that defines an inlet and an outlet, a sub-bypass passage that branches off from the main-bypass passage at a branching area, and a guiding wall that changes, at a position upstream of the branching area, a flow direction of the passing air taken in from the inlet. The inlet and the guiding wall are arranged in an arranging direction along a flow direction of the intake air in the duct. The guiding wall includes an inlet side surface that faces the inlet and is not perpendicular to the arranging direction.

A sensor is provided for determining at least one parameter of a fluid medium flowing through a measurement channel, in particular an intake air mass flow of an internal combustion engine. The sensor has a sensor housing, in particular a plug-in sensor that is inserted into or is insertable into a flow tube, in which sensor a measurement channel is fashioned, and has at least one sensor chip situated in the measurement channel for determining the parameter of the fluid medium. The sensor housing has an electronics compartment for accommodating an electronics module and has an electronics compartment cover for closing the electronics compartment. The electronics compartment cover has, at least in part, electrically conductive properties. For example, the electronics compartment cover is placed onto the electrical ground of the sensor and, viewed in projection, partly or completely covers the sensor chip.

A method for estimating the aging of a battery of a motor vehicle with a combustion engine, the vehicle including an electric starter, a temperature sensor for the temperature of the coolant, a speed sensor for the speed of the combustion engine and a computer for managing the drive system of the vehicle. The method includes, each time the combustion engine is started, the steps of the computer determining the value of the speed of the combustion engine and the value of the temperature, if the determined value of the speed is higher than a speed threshold, incrementing a first counter, if the determined value of the speed is lower than the speed threshold, incrementing a second counter, detecting the aging of the battery when the value of the second counter is higher than a predetermined alert threshold.

A system includes a controller configured to receive a signal acquired by the at least one knock sensor coupled to a reciprocating device, to sample the received signal, to analyze the sampled signal, and to utilize standard quality control (SQC) techniques to perform real-time diagnostics on the reciprocating device based on the analyzed signal.

Examples of the present disclosure describe systems and methods for determining a state of an air diverter valve of an air induction system of a vehicle. The determined state of the air diverter valve may be based on an intercooler-based estimated ambient air temperature and a comparison between an ambient air temperature sensor value and a pre-compressor sensor value.

A method and system for measuring, determining and/or analyzing the cranking RPM of a vehicle is provided. The system measures the voltage of at least a portion of a vehicle's electrical system to determine high and/or low voltage time periods during at least a portion of a starting or cranking cycle. The time between high and/or low voltage points can then be used, along with the number of cylinders in the vehicle, to determine the cranking RPM of the vehicle. The system may include a load module and a control module that are removably coupled to one another in first and second configurations.

The present invention is one that reproduces behavior close to an actual run of a vehicle in a test using a loading device, and is a specimen test apparatus that tests a specimen that is a vehicle or a part of a vehicle. The vehicle test apparatus includes: a loading device that is connected to a rotating shaft of the specimen and gives running resistance to the rotating shaft; a storage part that stores tire diameter data indicating the relationship between a running state of the specimen and a tire diameter; and a control part that, from the tire diameter data, calculates a tire diameter corresponding to a running state of the specimen, and controls the loading device with use of running resistance obtained from the calculated tire diameter.

Provided is an information processing apparatus including: an input unit into which shape data of a surface to be measured including a plurality of recesses is input; and a setting unit that detects each of the plurality of recesses on the basis of the input shape data and sets, for the detected recess, a region to be removed including the recess.