Automotive software testers who intend to use unique automotive testing techniques in the near future will find the ISTQB CTFL Automotive Software Tester certification to be especially helpful. You must demonstrate your proficiency in using appropriate test techniques in accordance with the evolving requirements of the automotive standards in order to succeed in the interview. Additionally, you must have a thorough understanding of the virtual test methodologies, such as HiL, SiL, MiL, etc.
To further solidify your knowledge, you can also go through our ISTQB® CTFL Automotive Software Tester Online tutorial. Our Free Practice Tests will assist you in obtaining your desired certification and helping you to show employers that you are capable in a job market that is constantly changing.
Your command of a number of automotive activities, roles, techniques, and methodologies that are unique to the position of an Automotive Software Tester will be evaluated by the interview panel. There are a few common inquiries that you should be ready for. The list of typical ISTQB® CTFL Automotive Software Tester interview questions and responses is provided below. Let’s get started!.
What is HIL Testing in the Context of Automotive Application Development?
Can you introduce yourself in a few words?
Gregory Rousseau, a Product Owner at AVSimulation for three years, is my name. I’m in charge of creating the Roadmap, observing how developments are going, and foreseeing or paying attention to the needs of customers now or in the future. On the other hand, I continue to work on a number of projects, including SERKET for RUAG Défense France, which creates a simulator for the DGA and in which our team will incorporate software interfaces.
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Can you explain the acronym HIL?
HiL is the acronym for Hardware in the Loop. A HIL device, also known as a HIL bench, involves using a simulation loop to control a physical component (such as a sensor or actuator).
These days, all automobiles have electronic control units (ECUs), which are systems with inputs and outputs that integrate control laws to regulate systems (such as ADAS, air conditioning, lighting systems, etc.). ).
The specific illustration is the ability to test an ECU on a table before installing it on a vehicle. To achieve this, the ECU inputs must be fed with fictitious measurements (from a simulation loop) in order to track the development of its output values. In other words, the ECU will act on actuators after receiving information from simulated sensors, or it will instruct other ECUs.
The case of a gear lever on a vehicle with a piloted gearbox is a straightforward illustration. A sensor will detect the position of the gearshift and send the information to the ECU (the driver’s request for a gear change). In exchange, and if the eligibility requirements are met, the latter will turn on a gear change system. The shift sensor and/or gearbox actuator can both be tested and validated for such a system using the HIL bench.
Examples of ADAS are frequently more complicated, involving various sensors (real or simulated) and a computer that will eventually fuse the data from multiple sensors to verify the selection of a set point.
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It can be challenging and time-consuming to switch from an ineffective computer system to one that is more effective, but software development managers can ease the process. They accomplish this by outlining different development phases, ensuring that everyone completes phases on time and in the proper order, and ensuring that the project is delivered as soon as possible and bug-free.
To further solidify your knowledge, you can also go through our ISTQB® CTFL Automotive Software Tester Online tutorial. Our Free Practice Tests will assist you in obtaining your desired certification and helping you to show employers that you are capable in a job market that is constantly changing.
Automotive software testers who intend to use unique automotive testing techniques in the near future will find the ISTQB CTFL Automotive Software Tester certification to be especially helpful. You must demonstrate your proficiency in using appropriate test techniques in accordance with the evolving requirements of the automotive standards in order to succeed in the interview. Additionally, you must have a thorough understanding of the virtual test methodologies, such as HiL, SiL, MiL, etc.
Since 2008, functional safety requirements for vehicles have been covered by ISO 26262. Now widely used globally, it incorporates safety analysis techniques that take into account both random and systematic errors in electrical and electronic systems. To lower risk in connected cars, the automotive industry relies on the software best practices outlined in ASPICE.
In order to find potential programming errors in a program, structural testing is used. It examines both outcomes and operational procedures, and is sometimes known as “white-box testing.” Static testing involves examining the program as if it were already running on a specific platform without actually executing the code.
Can you also quickly explain MIL, SIL, DIL ?
MiL: Model in the Loop. It is a test model that is not compiled. The limitations of using and integrating embedded software (defined operating frequency, low-level layers, etc.) are still being worked on. ). In other words, it is somewhat of a raw product that enables the development of the control law and the execution of the initial tests, with only the embedded system’s algorithm being assessed.
SiL: Software in the Loop. Computed control laws are used for this type of test, making them similar to those that will be found in the ECU. These command laws constitute the embedded software. The remainder of the environment, including the embedded software’s hardware component, is still a simulation.
DiL: Driver in the Loop. This test is applied when a driver-operated simulator is in the simulation loop. We can discuss DiL once a physical person controls something during the simulation. This type of bench’s goal is to gauge how the driver responds to an unexpected event (such as the display of information or the audible emission of a warning or prevention signal). ).
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FAQ
What is HIL testing in automotive domain?
Hardware-in-the-loop (HIL) is a term used in the automotive industry to describe a technique for testing and validating complicated software systems on test benches with specialized hardware that takes data inputs from real-world gadgets like radars and cameras.
How HIL testing is done?
HIL testing is a technique that fools a controller into believing it is in the finished product by connecting real controller signals to a test system that mimics reality. Iterative testing and design processes are carried out as though a real-world system were being used.
What types of problems can HIL test benches solve?
ECUs (Electronic Control Units) with integrated control laws or sensors can be tested using HiL benches. This is solely related to the development of electronics in the automotive industry; up until that point, mechanical tests sufficed.
What is plant model in HIL?
Your controller’s real-time response to realistic virtual stimuli is demonstrated by HIL simulation. HIL can also be used to check the validity of your physical system (plant) model. In HIL simulation, your plant model is virtualized on a real-time computer, and your controller is implemented in reality.
