European Standard × Made in China Overseas Test MG ZS Pure Electric
[Aika Auto New Energy Channel Original]
When it comes to Britain, I believe many fans will think of the car culture event Goodwood Racing Festival and the famous TV program TopGear. As the birthplace of industrial civilization, Britain also has many famous car brands. However, with the passage of time, many British automobile brands are almost sold out today, and they are interpreting the British style in a brand-new way.
Just like Rolls-Royce and MINI are to BMW; Bentley to the public; Jaguar and Land Rover are to Tata; Lotus and Britain are to Geely … … MG (MG) is also under the management of SAIC. This British brand, which was born in 1924, has gone through 95 years of ups and downs. In 2018, under the wave of "new four modernizations", SAIC MG launched the first pure electric vehicle — — MG ZS pure electric. The first media dynamic experience of this new car was carried out in Britain, the birthplace of its brand. There are two reasons,First of all, MG ZS pure electric is based on more stringent European standards; Secondly, MG ZS pure electric will be sold to many countries and regions around the world, including ten European countries, Thailand and so on, and it is a veritable global ESUV.
PS: The official Chinese name of this new car is ZS pure electric, and the overseas version is MG EZS.
Before the official start of this article, let’s briefly understand the general situation of SAIC MG in the UK.
As an old industrial country, Britain has a very mature automobile market and consumer groups. This is also the biggest difference from China. British consumers often vote with their feet to eliminate those automobile products that should not appear here.
With a history of nearly 100 years, SAIC MG has a certain popularity and reputation among consumers in the UK. At present,SAIC MG sells three models of MG GS, MG3 and MG ZS in the UK.Although the total sales volume can’t compete with the first-line brands in the world at present, only MG achieved a contrarian growth of 103.76% under the overall downward trend of the British automobile market last year. It can be seen that MG has not only won a place in the British auto market, but also its development momentum is good.
SAIC has two design centers in Birmingham and London, which play an indispensable role in the development of ZS pure electric products. Including the research of pre-brand design language, the calibration of battery system, the research and development of European standard charging system, the road adaptability verification in Europe, the road test and the certification of pure electric vehicles in the UK, etc.
Why do you want a road test in Europe?
MG ZS pure electric vehicle is a pure electric vehicle developed for the global market, which will be exported to ten European countries including Britain, France, Germany, Norway, Belgium, Spain and other countries in the world, such as Thailand. Therefore, it should follow the REACH and E-MARK regulations of the European Union. Since the standards of EU in environmental protection, safety, energy saving and quality are higher than the national standards, it is necessary to calibrate the vehicle indicators according to the EU standards. However, the calibration of parameters is based on a large number of actual data, so data collection and testing on the actual roads in Europe is a model.facing to the worldAn indispensable link in the product development process.
How to conduct a road test?
According to the product manager of MG, there are 8 cars in the European road test at the same time. According to the market situation of each country, these 8 cars will be assigned to different countries, and a total of 1,000 hours of effective data collection will be completed. At present, the stage we are going through is the initial data collection, which will last about 3 months. The collected data will be packaged and sent to Shanghai for analysis and calibration, and then returned to Europe for the full-function test of vehicles for about 2 months. The total duration of the road test in Europe is about 4-5 months.
What road test projects are there?
There are a lot of data and items that need to be collected for the road test, and we participated in it this time.Collaborative data acquisition between ADAS camera and vehicleandMulti-road adaptability test of three-power systemTwo items. In addition, what needs to be done isAdaptability optimization of chassis system, vehicle process quality, and software optimization under various complex working conditions.Testing and data collection in other aspects.
●ADAS camera and vehicle collaborative data acquisition
In terms of active safety, European standards have stricter regulations on ADAS system’s autonomous steering, active braking and AVAS low-speed warning sound system, and vehicles under European standards must be equipped with emergency call system to rescue members in time in case of accidents. In terms of passive safety, the European standard requires all seats to be equipped with seat belts without reminding function.
Based on European standards, it is particularly necessary to collect the test data of ADAS system in the early stage. In the data acquisition process, British testers drive vehicles, and collect information through millimeter-wave radar at the front of the car and visual camera attached to the front windshield. For other traffic participants on the road, record the decisions made by the system and the corresponding collaborative data.
These collected data will be displayed in the car computer in real time and saved at the same time, so as to be taken to Shanghai for item-by-item analysis in the later stage, and the ADAS system will be optimized and debugged according to a large number of collected data.
● Multi-road adaptability test of three power systems
The other is the data collection of the three-electricity system, such as the discharge and output power of the vehicle under different road conditions, and the state of the three-electricity system under the climatic conditions in Europe. Engineers will balance and optimize the vehicle according to the collected data in order to achieve an optimal state.