Preparing for a software tester job interview can be a daunting task for any candidate. With the right combination of knowledge, research and practice, you can successfully navigate the interview process. To help you prepare, this blog post will provide an overview of the types of questions you may be asked during a software testing interview, as well as tips and advice on how to effectively answer them. We’ll also provide sample answers to the most commonly asked interview questions, so that you can practice your responses in advance and boost your confidence going into the interview. Whether you are a seasoned tester or a newbie in the field, this blog post will provide you with the tools you need to ace your software testing interview.
HIL Testing| Interview QA Part – 15 | Automotive | Plant Simulator | Plant Model | Embedded World
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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Difference in their Usage:
While a union allows us to treat the same space in memory as a number of different variables, a structure only allows us to treat a number of different variables stored at different locations in memory. In other words, a union provides a means of treating a portion of memory as one type of variable on occasion and as a different type of variable on another occasion. When working with hardware, it is frequently necessary to access a byte or group of bytes at once, and occasionally each byte separately. Usually union is the answer. =======Difference With example=======.
Consider creating a structure with an int, char, and float, then declaring a union with those three types of data.
Size of TT (struct) would be >9 bytes (compiler dependent-if int,float, and char are taken as 4,4,1) Size of UU (Union) would be 4 bytes as supposed from above If a double variable is present in the union, the size of the union and the struct would be 8 bytes, as would the total size of all the variables in the struct.
Interview Questions of Top Designations
FAQ
Why HIL testing is required?
More than ever, HIL testing is required to guarantee the dependability of EV and ADAS/Active Safety systems that are developing quickly. In order to test the growing connectivity and interdependence between systems and vehicle domains as they jointly contribute to important vehicle attributes, HIL is essential as a test methodology.
What is HIL in testing?
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.
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 the function of HIL?
A technique known as hardware-in-the-loop (HIL) simulation uses a virtual real-time environment to simulate your physical control system in order to test your control algorithm on an intended target controller. Without using physical prototypes, HIL makes it possible to test the behavior of your control algorithms.
