1、 Preamble

Bicycle, as a means of transportation, has gone through a hundred years since its birth. The development of the times has made it the most common means of transportation, but the pace of bicycle innovation has never stopped. For example, the emergence of electric bicycles has greatly improved people's short distance travel experience. According to the data of the 2013 "China Electric Bicycle Industry Innovation Summit Forum", By 2013, the number of electric bicycles in China had exceeded 200 million. However, such a product with such a broad mass base also has many shortcomings that are criticized. For example, its bulky body and stereotyped shape make it difficult to pedal once the power is insufficient, which is good, The electric bicycle without pedal has to be turned into a "handcart" once it is out of power.

In the era of Internet++traditional transformation, the concept of "intelligence of all things" has been deeply rooted in the hearts of the people and has gradually become a trend. How can electric bicycles, a traditional industry with a huge size, catch up with urban development and scientific and technological progress, catch up with the new world of smart mobile, scientific and technological fashion, and green development? The Cloud Horse C1 Smart Train launched by Hangzhou Cloud Manufacturing Technology Co., Ltd. provides a solution to this problem. Now, let's explore this product, which is called "the most knowledgeable young people's e-bike".

2、 Design

▲ "Urban e-bike for young people to travel happily" is the product positioning of Yunma C1. Its name "C1" is extracted from keywords such as city, classic, colors and cloud. The models are divided into men's and women's models, and the color matching is also very rich. The author received the men's space gray color matching version, with a more black visual effect and calm atmosphere; The bright orange battery under the seat sprays out the youth vitality. The whole vehicle weighs 16KG (including the battery). The all aluminum alloy triangle frame, CNC upright pole, traditional metal chain, bright silver aluminum alloy wheel hub can adjust the seat. The whole vehicle is simple and elegant, retro and following the trend. Even if you see C1 for the first time, you will never forget it or even fall in love at first sight.

▲ The design of Yunma C1 conforms to ergonomics. The overall length of the whole vehicle is 1515mm, and the clear height is about 945mm. In a bicycle, it is considered as the height of "grounding air"; The front and rear wheel sets are 20 inches. For the author who is used to mountain biking, it seems a little stingy. However, the small wheel set has its own advantages. It has relatively large rigidity, climbing response, curve flexibility, lightweight and other advantages. For C1, which is positioned for urban travel, it is also a good match, but the lack of front and rear wheel mudguards is a great pity, Yunma officially sets it as an optional accessory; The tire air valve is French type, which has the advantages of manually locking the valve, good air tightness, high pressure resistance, and smooth air leakage linearity. It is generally used on high-end bicycles. However, because of its low popularity, it needs a special inflator or nozzle. If you don't take a adapter or special inflator when you go out, you will be in trouble if you have a tire problem on the way.

▲ The transmission part of Yunma C1 adopts the traditional metal chain design. The chain brand is KMC, and the transmission gear ratio is 46T: 16T. The pedal is the product of Wellgo, Taiwan. The traditional metal chain is also the most common transmission form of bicycles at present, C1 If you can use a more light and quiet belt drive without lubricating oil, it will be much higher, but in this way, the cost will certainly rise.

▲ The handlebar part of Yunma C1 adopts CNC pole, which is designed with bell, mobile phone bracket and multi-function LCD instrument. The instrument is very similar to the traditional code meter, but its function is more powerful. Through it, the power level can be directly adjusted, and the five modes of OFF/ECO/NORMAL/SPORT/ON can be switched freely; The screen has backlight, which can display the current speed, mileage (ODO total mileage/TRIP single mileage), power, fault code, Bluetooth, USB icon and other information. The bottom of the instrument even has a USB socket, which can directly charge the mobile phone.

On the outside of the car handle, there is also a hidden central control dynamic control system. In short, when you execute the brake action, the central control system immediately sends a power-off command, and the motor no longer provides power to ensure that the bike stops quickly. However, since C1 uses a traditional V brake, the braking effect is not very ideal, especially when going downhill, It takes some time from the time when the brake action is sent to the time when the car stops, which can be further optimized.

▲ The front light is fixed at the front of the frame, and several bright LED lights are built in. Two modes can be switched through the button above: daytime driving and night lighting. As long as the bicycle is powered on, the daytime driving light cannot be turned off. The author was puzzled by this design at first, but later thought that LED and other lights do not consume electricity, and it is necessary to turn on them in the daytime in some cases, For example, the light is not very good in foggy weather, but obsessive-compulsive disorder may be difficult to accept the light on in the daytime. The author has encountered the situation that passers-by's warm warning light is not turned off several times in recent days when riding outside. In addition, it is recommended that the headlight switch button should be integrated into the handlebar to facilitate direct switching during riding.

▲ The battery part of Yunma C1 uses Samsung's 18650 cell lithium battery, with a rated capacity of 5.2ah, a net weight of 1.2KG, and a battery charge of 3 hours, which can achieve 55-75KM riding assistance mileage. It is composed of 20 cell 2600mA batteries through visual inspection. The tail of the battery is designed with a red tail lamp, which has four display modes for users to switch. It can also be used as a power indicator when charging the battery. The bright orange color matching makes the whole vehicle more flexible and full of youthful vitality. In fact, there is a USB socket hidden inside the battery, which can be used as an emergency mobile power supply. The drawback is that the power cord below the battery is not easy to remove when it is disassembled, which requires certain skills.

▲ The power system is the core part of the electric bicycle, and the motor is the core of the power system. The motor of Yunma C1 is a brushless motor with a rated voltage of 36V and a rated power of 180W. It is independently developed by Yunzao Technology, which can provide ultra efficient power conversion, and the transmission conversion efficiency is up to 86% or more; Even when riding without electricity, the reluctance of the 198 diameter motor on the market is reduced by 80%, which is the most appreciated by the author. I believe that the kids who have experienced the experience of having to pedal when the electric vehicle is out of power know that once the traditional motor is out of power, it is hard to pedal the electric vehicle. The author personally measured that Yunma C1 is also relatively light when pedaling under power failure. In addition to the lighter car itself, this non resistance motor is also very important. However, the power output of the motor is not strong, and the maximum driving speed can only reach 20km/h in pure electric mode, which is also safer in reverse.

3、 Experience

▲ The height of the C1 men's frame is still relatively high when riding on it. The author is 174cm tall, and adjusts the seat height to the minimum. Only when sitting on the tiptoe can he stand steadily. Therefore, it is recommended that the cyclist should lean to the body at a certain angle and cross the beam before pedaling to start, Fortunately, when starting the electric mode of Yunma C1, the electric power assistance can only be started when the car has a certain speed, which ensures the safety of riders.

▲ People who are used to riding traditional electric vehicles ride Cloud Horse C1 for the first time will be surprised by the hybrid riding experience. It not only enables you to achieve the goal of strengthening your body like riding a traditional bicycle, but also provides you with considerate assistance when you need it, so that you can easily move forward when you are tired by gently pedaling, which really feels like riding a horse in the cloud, Light, elegant, free and free. You can completely set the power assisted mode according to your physical strength and actual road conditions. If you are too lazy to move, you can directly switch to the pure electric mode, which makes you stand out from the passers-by who are surprised by the fact that you don't pedal your bicycle, leaving only your proud back.

In addition, it has to be mentioned that the Yunma C1 is equipped with a three-axis acceleration sensor and a three-axis gyroscope. When you ride the C1 up the slope, C1 will automatically determine your power needs according to the slope and provide you with continuous power in an instant. You can easily climb the slope without stepping on it. Some kids may have questions: Will C1 suddenly accelerate when going downhill? According to the author's experience, the cloud manufacturing team has been quite effective in optimizing the C1 intelligent module. When going downhill, C1 will not misjudge and suddenly increase its power.

▲ The riding experience at night is also very ideal, which can be attributed to the high brightness lighting system of Yunma C1. When the headlights are turned on at night driving mode, the light is bright and has good concentration, which can clearly illuminate the front 5 meters of the car; The rear tail light can flash in four modes as required to protect the safety of riding at night; The instrument on the handlebar is equipped with a blue backlight, which is convenient for cyclists to check the riding and vehicle condition information at any time.

▲ Finally, let's talk about the "love hate" seat. The appearance is quite sexy, and the leather texture is also quite eye-catching. However, during the ride, the author found that it is not very comfortable to sit on the buttocks, especially in the perineum. When talking about it, the boys' shoes may immediately understand that if the ride is a little longer, the discomfort will be further strengthened, In addition, the car itself has no shock absorption. When encountering bad road conditions, if the butt can talk, it will complain incessantly.

IV APP

▲ Like other intelligent hardware products on the market, Yunma C1, as an intelligent e-bike, also has its own dedicated APP. After the two are bound through Bluetooth connection, the APP can realize the functions of riding data monitoring, positioning navigation, intelligent anti-theft, communication community and display of diagnosis results. The author thinks that the more practical function is vehicle condition monitoring.

▲ From the actual experience, the author thinks that the functions of this APP can only be said to be functional, but it is not enough and easy to use. For example, the headlight switch in the APP is in a virtual shape, and the anti-theft function cannot be turned on at all. The author speculates that the Bluetooth version may not have anti-theft function at all, and since there is no anti-theft function, do not add it to the APP.

5、 Charging

▲ When charging, you need to take the battery off the body first, use the key provided with the car to open the battery protection bolt and pull the battery upwards, and remove the power cord to remove it. This experience is not particularly good, because the power cable port at the bottom of the battery is too low, resulting in too narrow clearance with the wheel. It requires some skills to remove or install it.

▲ When the battery is removed, it can be found that the USB socket above the battery is protected by a soft rubber plug outside, which can be seen when opened. At this time, the battery is equivalent to a large capacity mobile power supply, which can charge other digital devices; The charger of Yunma C1 is delicate and compact. It has a status indicator light on it. The output specification is 42V, 2A, and the charging efficiency is very good. Basically, the battery can be "fully revived" in three hours. When the battery is charged, four indicator lights will flash to show the power.

6、 Summary

After several days of riding experience, my love for Yunma C1 is growing. For me, an office worker who often rides an electric bike to work, the biggest surprise of Yunma C1 is the lightweight and convenient body and the help mode that can be customized. I am interested. I can directly turn off the power for a pure pedal ride, and I feel very comfortable with sweat, When you are tired, you can turn on the appropriate power assisted mode or just ride a pure electric bike, which saves time and effort. With the compact body, you can put it in the corner of the office when you arrive at the office. It's easy to carry it up and down the stairs. What's more, such a stunning appearance really made me feel what it was like to turn around and burst into the limelight.

Yunma C1 - the first motorcycle for young people, you deserve it!