Written | Auteur de CK
In more than one hundred years of entrepreneurial history, Citroen has always positioned itself as a car brand that focuses on forward-looking technology and comfort.
However, many media are often in reports, but they are talking about Citroen's handling limit and Elk test results.
Citroen’s 100th Anniversary Logo
01
Citroen created the elk test "myth"
, especially the elk test results, the most brilliant scene is naturally 21 years ago, the Citroen Xantia Activa V6 was randomly initiated by the Swedish car magazine Teknikens Värld. Moose Test). The test rule of
Teknikens Värld Automotive Magazine is that the vehicle needs to be loaded to simulate the actual conditions of the vehicle. In the test at the time, the Xantia Activa V6 unexpectedly easily set a passing speed of 85km/k, with almost no sideslip, and the body only showed a small angle of roll...
Xantia Activa V6
This result is not only a record since 1999 To this day, it is the pinnacle of the European D-segment sedan, and even successfully blocked the Audi R8 V10 Plus (83km/h), McLaren 675LT (83km/h), Porsche 997GT3 RS (82km/h), and The counterattack of super sports cars such as Mercedes-AMG GT S (82km/h).
So, what is the significance of the elk test that Europeans are keen on?
Teknikens Värld Automotive Magazine Elk Test Ranking
On the one hand, it is to prove the flexibility of the vehicle in avoiding obstacles, especially the stability of the body posture in response to extreme conditions, the controllability of the vehicle, the grip of the tires, etc. Indicates the efforts made by the OEMs on handling stability; on the other hand, it is to check the electronic system adjustment of the vehicle, such as whether the electronic stability program (ESP/ESC) is timely for braking restraints under extreme conditions, and tolerance, etc. Wait.
Although Citroen has always pursued the goal of providing the best comfort among its class models, the dynamic response of driving pleasure and the full suspension rebound are the deepest subjective left to consumers by this French car brand. impression.
Only 21 years later, Xantia Activa V6 has undoubtedly become a legend and a myth. And as Citroen's Hydractiva hydraulic suspension is replaced by the new PHC adaptive hydraulic stability technology shock absorber, can its high extreme stability and safety advantages represented by the elk test be reflected in the new SUV products?
Hydractiva hydraulic suspension can keep the body stable.
Picture from PistonHeads.com
The answer is naturally yes.
02
CCPC Elk test hit the list, what is the result?
is unconventional in technology, which is the traditional impression given to us by Citroen. This French car company likes to play some new tricks. However, in recent years, Citroen has also begun to boldly innovate in products.
Citroen's 100-year-old model evolution
In order to cater to the preferences of global consumers, Citroen began to increase investment in the SUV field. Not only C4 CACTUS and C3 AIRCROSS (corresponding to domestic Yunyi) were launched, the third-generation C4 is also transforming into the field of crossovers. The core SUV model of the C segment-C5 AIRCROSS has become a best-selling car.
C5 AIRCROSS, the Dongfeng Citroen Tianyi on the domestic market, is an SUV model that focuses on comfort. However, what is more interesting is that after it landed in the European market in 2019, it passed the test at a speed of 79km/h in the elk test conducted by the Spanish car media km77.
km77At the Elk test site, the dynamic limit of the
C5 Aircross is very high.
What’s more, in the repeated overweight tests of km77, this SUV knocked down two pile barrels when avoiding obstacles at 84km/h because of understeer. There was no situation where the vehicle lost control or rushed off the track, and the position was still clear.
's 79km/h passing speed not only exceeded the 77km/h passing score line set by km77, but the overall test situation is even ahead of the mainstream European standards such as Tiguan Allspace (corresponding to the domestic Tiguan L), Kuga (wing tiger) and even RAV4 C-segment compact SUV.
C5 AIRCROSS’s elk test video at km77,
, actually conducted elk test at km77. Another media, Motor 1, also conducted elk test on C5 AIRCROSS. The test standard referred to is still ISO 3888-2, the second part of the passenger car lane change test: obstacle avoidance. The test result of
C5 AIRCROSS on Motor1 is not much different from km77. The speed is also stable at 79km/h. When accelerating to 83km/h, it hits a pile and the vehicle still keeps track and control. Therefore, it can also be said that Tianyi’s best "obstacle avoidance" performance is 79km/h...
C5 The Elk test video of AIRCROSS on Motor 1
through different media, different venues, and different models (the 2.0T diesel used by km77) Version, Motor 1 is a 1.6T gasoline version) and different testers have obtained almost the same test results, which undoubtedly shows that the performance consistency of C5 AIRCROSS and its handling stability under extreme conditions are its own advantages. Where.
Controllable vehicles can certainly bring strong confidence to the driver, and when an accident occurs, it can also allow the driver to deal with it calmly. In other words, it can provide a more reliable security guarantee and save a life if necessary.
Some people may be curious, as a global model, C5 AIRCROSS corresponds to Tianyi in China, what is its elk test score? Will it be very different from abroad?
2020 China Production Car Performance Competition (CCPC) Tianjin Station,
Elk test site (dry ground)
In the recent 2020 China Production Car Performance Competition (CCPC) Tianjin Station, Dongfeng Citroen Tianyi C5 AIRCROSS proved with facts Its advantage in "stability" not only maintains a high degree of consistency with the European version, but also achieves the strongest domestic car in its class.
The elk test rules of the domestic CCPC basically refer to the European ISO 3888-2 staking standard. The difference is that the elk test is used as a competition subject in the CCPC, and its data is based on the time to pass the obstacle instead of entering the stake Speed.
The limit of the domestic Tianyi C5 AIRCROSS is also quite high. Although
's high-speed driving body has a side tilt, the wheels still keep track. The organizer also explained that it is for the sake of fairness and adopts a unified electronic timing to avoid individual XS and vehicle speed error.
In the two days of the Elk test, the Tianyi C5 AIRCROSS's "obstacle avoidance" score on the first day was locked at 3.369 seconds, ahead of the 2019 champion model-Changan Yidong PLUS 1.4T in 3.391 seconds, which is CCPC The best "dry land" elk test results in the past three years.
Elk test video of Tianyi C5 AIRCROSS in the CCPC competition
At present, in addition to Tianyi C5 AIRCROSS, in the CCPC Elk test over the years, the SUV model with better results is the XT4 of SAIC-GM Cadillac, and its "obstacle avoidance" takes 3.436 seconds; Following XT4 is GAC Mitsubishi Outlander, which took 3.599 seconds to "avoid obstacles".
03
What does a good suspension mean?
Actually, the speed of Tianyi C5 AIRCROSS is not without mystery. The driver's factor accounts for half, and the vehicle's own performance advantage also accounts for half.
Tianyi C5 AIRCROSS chassis perspective view
From the video and image records, it is not difficult to find that because the suspension of the domestic version of Tianyi C5 AIRCROSS is adjusted to be soft for comfort, the inner wheels of the rear wheels even appeared when quickly crossing piles to avoid obstacles. The phenomenon of lifting wheels.
However, in the dynamic inertia transfer of the car body, the suspension can still provide better lateral support, and the remaining three wheels also always maintain a stable grip. At the same time, ESP actively intervened, so that Tianyi C5 AIRCROSS can always keep track when "obstacle avoidance".
In addition, from the analysis of the hardware of the walking mechanism, it is not difficult to find that Tianyi C5 AIRCROSS has spent a lot of effort on the chassis design and adjustment, and the solid materials have also laid a good foundation for its "stability".
For example, the PHC adaptive hydraulic stability technology shock absorber we mentioned earlier in this article actually has the effect of "infinitely variable damping". That is to say, when a low speed encounters a small impact, the progressive hydraulic cushion in the cavity quickly drains the hydraulic oil, allowing the suspension to filter the road vibration, creating a comfortable feedback of the Q bomb; and when encountering a large compression, the hydraulic oil discharge speed slows down, making the suspension function Better support effect.
Tianyi C5 AIRCROSS Adaptive Hydraulic Stability Technology (PHC)
So when opening Tianyi C5 AIRCROSS, you can clearly appreciate the different characteristics of the chassis suspension at slow and fast speeds. It can really balance the contradiction between soft and hard, balancing comfort and control.
look at the suspension material is also full of black technology. In addition to the unique PHC adaptive hydraulic stability technology shock absorber in the same class of SUV, the secret of maintaining high comfort and stability of the suspension lies in the variable cross-section torsion beam rear axle, eccentric spring, double rubber bushing, and The second-order damping curve controls the buffer block.
is especially worth mentioning is the variable cross-section torsion beam rear axle. On the new generation EMP2 platform, the volume of the torsion beam has been increased. At the same time, its shape has changed from the open beam of the PF2 platform with a built-in stabilizer bar structure. The internal high pressure forming deformable closed cross-section beam. Not only is the strength better, but the torsional rigidity is also greater. While reducing the weight by 47.3%, the dynamic response of the rear of the car is improved in disguise.
Tianyi C5 AIRCROSS also maintained a high stability limit in the wetland elk test.
At the same time, Tianyi C5 AIRCROSS also generously used Michelin Primacy 3ST (Haoyue) high-end comfort patterns in its rubber formula. The unique FlexMax technology ensures that the tires have better grip and shorter braking distances whether on dry or wet ground.
Earlier we mentioned that Tianyi C5 AIRCROSS had the best "dry ground" elk test results in the CCPC competition in three years. In the CCPC elk test on the second day (November 18), it was raining when Tiangong did not make beauty. This also adds some variables to the results of the event.
Surprisingly, the bad weather has inspired Citroen's passion for challenge. So on the afternoon of the 18th, the first domestic wetland elk test kicked off-this is a challenge initiated by Dongfeng Citroen to itself, and it is also to challenge how high the limit of Tianyi C5 AIRCROSS is...
can be seen from the road traces, The grip of the Michelin Primacy 3ST (Haoyue)
high-end comfortable pattern tires is very good, with little side slip. After multiple rounds of tests, the Tianyi C5 AIRCROSS finally ran out 3.461 seconds with excellent "stability" and positive ESP constraints. The results. Although it is slightly inferior to 3.369 seconds on dry ground, it is already No. 1 in the domestic wetland elk test, which is even better than the dry ground results of many models in 2020. If latecomers want to challenge, the difficulty is extraordinary.
Tianyi C5 AIRCROSS's wetland elk test video
analyzed the dynamic performance of Tianyi C5 AIRCROSS after the game, and it is undoubtedly the same. The
suspension can support it. ESP gives active braking restraint to keep the car stable. The tires continue to give effective grip. At the same time, the short front and rear suspension and 1.5 tons of curb weight also make Tianyi C5 AIRCROSS has a lighter posture and is more flexible in continuous obstacle avoidance.
race driver and Dongfeng Citroen's senior director of public relations and communications Qu Hongyu
. From a practical point of view, the wetland elk test is actually more indexed-surpass yourself and set a benchmark. This in fact also shows that Tianyi C5 AIRCROSS has not reduced its performance after being introduced into the country, but instead embodies the consistent product concept of Citroen worldwide.
04
Tianyi C5 AIRCROSS's highlight moment
For one hundred years, Citroen has completed challenges again and again in this uncompromising spirit. Although the operation is stable and outstanding, the Slogan that has not changed is the Citroen Advanced Comfort, that is, Citroen leads the comfort.
For car manufacturers, because the development of new cars is subject to cost, usually "handling" and "comfort" can only be one of them. But this choice seems to be no contradiction in Citroen's view. In order to stand out, Citroen will often choose the most adventurous plan, and then finally try to balance it so that both "fish and bear's paws" are available.
Tianyi Origins Centennial Edition
So for the Tianyi C5 AIRCROSS this car, the gentle comfort is only part of its product features, like a dominant gene, but never all. Because it also hides the belief in control stability-in addition to active and passive safety protection, the hidden safety of "stability control" is always present everywhere.
This is actually the most fundamental safety feature of a car and a high-chassis SUV. The excellent tuning and solid materials are worthy of the title of MCS Master Chassis of Tianyi C5 AIRCROSS.
Tianyi C5 AIRCROSS “Three-engine four-wheel drive” PHEV plug-in hybrid version
“Three-engine four-wheel drive” PHEV plug hybrid version diagram Stronger confidence. From the perspective of product launches, Dongfeng Citroen has also been working hard to build Tianyi C5 AIRCROSS into a series with rich matrix. In addition to the Tianyi Origins Centennial Edition released in 2019, in 2020, Dongfeng Citroen also launched the "Three-engine four-wheel drive" PHEV plug-in hybrid version and 400THP flagship version, and it has maintained its high cost-effective advantage all the time: including PHEV The price of the whole series including 149,700,000 yuan. The championship title of
CCPC elk test, coupled with the recently released "Five Heart Guardian" action, overall it is more like a policy platform, skills singing.
At present, Dongfeng Citroen's sales have achieved positive growth for three consecutive months. It is undeniable that as the main player, this is also the most confident moment of Tianyi C5 AIRCROSS. 【iDailycar】
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