ATESTEO Blog: Can you describe how a benchmarking project at ATESTEO runs? What is tested and examined? It is surely very complex and customers surely want to know what they can expect when they work with you and how long it takes.
Peng He: Well, it usually works like this: We receive an inquiry from a customer. In some cases, the test specification has already been precisely defined. Customers who have already done a lot of testing give us a measurement matrix and tell us which measurements are to be performed. Then the specifications are quickly created. Sometimes customers need support because they do not know exactly what should be measured on the competitor’s vehicle. In these cases, we create the test specification together. In the end, the specifications always depend on the target vehicle and the drive system used. This takes an average of two to three months.
We can procure the vehicle to be examined only when all technical aspects have been determined. ATESTEO can organise all production vehicles and parts around the world. Of course, this sometimes takes a bit of time, but it is manageable.
During the next step, a feasibility study is developed. The customer has defined which signals are to be measured. To measure these signals, we need special measurement technology. To mount this measurement technology in the drivetrain, we have to check the feasibility by disassembling the drivetrain. We have to decide where and how to place the measurement technology in the drivetrain, because after installing the measurement technology, the vehicle has to run normally. We must not allow any external influences. This is the only way we can obtain proper data for the customer.
ATESTEO Blog: That sounds like a lot of detailed planning before benchmarking a drivetrain. What happens next?
Peng He: Yes, that’s exactly right! After the feasibility study, we equip the vehicle with all measurement equipment and the power supply. We have a lot of in-house measurement technology, but we partly also use third-party sensors we have bought. We rely on both. Most of the time, the measurement technology goes in the boot/trunk. This step is called “equipping the vehicle with measurement technology.”
After the measurement technology has been mounted, we start measuring on public roads, on our test track, or on our chassis dynamometer. By the way, our clients can also have the drivetrain removed after each test and connect it to our test bench to find out even more precise efficiency levels. This gives them additional results.
After the test bench phase, we are done measuring. In the next step, we remove the measurement equipment from the vehicle and write a report containing the measurement data for the customer. We can also send tested components of the test vehicle to the customer afterwards. So the customer has the opportunity to analyse the parts again on his or her own.