Methods and systems are provided for conducting an ambient air temperature (AAT) sensor test. In one example, a method may include adjusting a vehicle actuator to reduce a deviation of the AAT measured by an AAT sensor on board a vehicle from an expected AAT and remeasuring the AAT with the AAT sensor in response to the AAT measured by the AAT sensor deviating from the expected AAT by more than a threshold temperature difference. In this way, excessively inflated or depressed AAT measurements at the AAT sensor can be reduced, the accuracy and the reliability of the AAT sensor measurements can be increased, vehicle fuel consumption and emissions can be reduced, and vehicle drivability can be increased.

A method for the self-check of at least one driving function of an autonomous or semi-autonomous vehicle in vehicle operation, after an error message about the at least one driving function, in which in one step, at least one vehicle electronic system and/or at least one sensor is/are restarted, a check is made for a further appearance of the error message after each restart, and in the event an error message is not repeated after the restart, the driving function in question is checked during operation of the autonomous or semi-autonomous vehicle.

A vehicle braking system including a brake pedal in communication with a wheel brake, a brake actuation system, a braking system controller, an on-board driver communication system, and a controller is described. Parameters associated with a braking request, a brake actuation command and vehicle operation are monitored during each braking event, and segmented the into parameters associated with a static portion of the braking event and parameters associated with a dynamic portion of each braking event, evaluate the parameters associated with the static portion of the braking event and evaluate the parameters associated with the dynamic portion of the braking event, and assess a state of health of the braking system based upon the evaluation of the parameters. The assessment of the state of health of the braking system is communicated to a vehicle driver via the on-board driver communication system.

A system for conducting a test of an active roll control (ARC) system in a vehicle while the vehicle is moving includes a module and a control module. The module is configured to receive a maneuver and an expected torque associated with the ARC system for the maneuver according to a defined velocity and a defined steering angle. The control module is configured to receive, while the vehicle is controlled to execute the maneuver, an actual torque of the ARC system, an actual velocity of the vehicle, and an actual steering angle of the vehicle. The module is configured to determine whether any one of the actual torque, the actual velocity, and the actual steering angle falls below the expected torque, the defined velocity, and the defined steering angle, respectively, and in response, generate a signal indicating a failure of the test. Other examples systems and methods are also disclosed.

Systems and methods for real time and predictive diagnostics of vehicle electronic components. Circuit boards and similar vehicle electronic devices have input/output speeds on the order of tens of gigahertz (GHz). Signal integrity can be affected when operating in real time while a high speed signal travels across circuit boards. To maintain signal integrity, hardware around high speed signals is designed to match impedance and transmission lengths. Additionally, differences can occur from circuit board to circuit board due to aging during vehicle operation, and tolerances in the manufacturing process. Systems and methods are provided herein to compensate for the tolerances in the manufacturing process. The real time and predictive diagnostics of vehicle electronic components provided herein can prevent on-road vehicle failures.

A method for evaluating a driver assistance function of a motor vehicle, including operating the motor vehicle with the driver assistance function; recording first data on surroundings of the motor vehicle; recording second data on a driver of the motor vehicle; transmitting the first and second data to a database; functional networking of the data within the database; and assessing the driver assistance function as a function of the networked data.

A method is specified for monitoring an electronic control unit for a motor vehicle. An electronic control unit with a monitoring circuit, which contains at least one sensor component, is provided. A measured value is recorded by means of the at least one sensor component, on the basis of which an actual value of a characteristic value representative for the thermal, mechanical and/or chemical loading of the control unit is determined and compared with a predetermined set-point value. A signal is emitted as a function of the result of the comparison. A device and a control unit are additionally specified.

An automotive internal combustion engine electronic control unit for performing safety-related functions with a predetermined automotive safety integrity level, including: a microcontroller and an integrated circuit distinct from and communicating with the microcontroller. The microcontroller performs one or more safety-related functions with the same automotive safety integrity level as required to the automotive engine electronic control unit. The integrated circuit performs one or more safety-related functions with an automotive safety integrity level that is lower than that of the microcontroller. The integrated circuit performs, for each performed safety-related function, a corresponding diagnosis function for detecting failures in the performance of the safety-related function. The microcontroller performs, for each performed diagnosis function, a corresponding monitoring function for monitoring performance of the corresponding diagnosis function by the integrated circuit to detect failures that may compromise the diagnostic capability of the diagnosis function.

System for checking a combustion engine (1) coupled with an electric generator (2) of a hybrid terrestrial vehicle having at least a drive line (61, 62) driven by at least one electric motor (51, 52); the combustion engine (1) comprising at least one subsystem to be checked; the system further comprising first control means (3) configured to drive the combustion engine (1) at a predefined deterministic operation point, wherein the system comprises second control means able to perform a diagnostic test on the subsystem wherein the first control means (3) are configured to vary the operation conditions of the combustion engine (1) in order to allow the second control means (ECU) to perform the diagnostic test.

A driver assistance system is presented, including an event detector which comprises a set of rules defining a surprising event based on signals reflecting a vehicle operator input signals from an object detection sensor. An event data file generator is configured to generate an event data file according to rules comprised in the event detector, the event data file comprising a video signal received from a camera, a signal from at least one dynamic vehicle sensor, and target object information received from the object detection sensor. The event data file generator is further configured to initiate data file generation responsive to a surprising event being detected by the event generator, and wherein the contents of the data file are specified by the rules comprised in the event detector. In this way, surprising events may be collected and analyzed off-board in order to generate updates for the driver assistance system.