The dual-electric system is the biggest highlight of E2, and it is also the core electrical issue that needs to be solved during the development of E2. At the German International Motorcycle, Scooter and Bicycle Expo, which opened on October 3, Chinese electric motorcycle brand E

dual-electric system is the biggest highlight of E2. This is also the core electrical issue that needs to be solved during the development of E2.

At the German International Motorcycle, Scooter and Bicycle Expo that opened on October 3, Chinese electric motorcycle brand Eke Electric released the new E2 model. At the press conference, Zhongguancun Online conducted an exclusive interview with Mr. Zhang Chaoxu, chief electrical engineer of E-Ke Electric.

Mr. Zhang Chaoxu, Chief Electrical Engineer of Eke Electric

According to engineer Zhang Chaoxu, compared with the previous E1 series models, E2 can be said to have undergone all-round innovation and upgrades in the electrical system. The biggest difference between

E2 and E1 is the addition of dual battery system. Among the E1 series, the R version with the largest battery capacity is only 2560Wh, while the E2 dual-battery system has a maximum total battery capacity of 4224Wh.

E passenger electric E2 has added dual battery function

The upgrade of battery capacity has increased the cruising range. The cruising range at 40Km/h exceeds 200Km. However, compared with a single battery, the dual-battery system has to achieve synchronous control of the two batteries. The essential. If not handled properly, the power advantages of dual batteries will not be fully utilized, and the safe use of the vehicle will be affected.

The new system ensures the stable operation of dual-battery mode.

E Passenger Electric has made breakthroughs in both software and hardware for the E2 model. Engineer Zhang Zhaoxu gave an example, "Under what circumstances can two batteries be used in parallel, under what circumstances must the parallel mode be forced to exit, and how to deal with battery abnormalities during driving, etc., the new system can effectively solve these problems."

In addition, it is not All users need this much battery capacity and range. In order to reduce users’ car purchase costs and increase the flexibility of battery use, E2 also supports 64V 40Ah or 64V 30Ah single battery solutions. The

single-battery solution not only reduces vehicle purchase costs, but also frees up some space in the seat bucket for user storage. In the single-battery state, the effective space in the seat bucket can accommodate a full-face helmet and a half-helmet at the same time.

In addition to the dual-power system, E2 has also made innovations and improvements in many functions.

For example, on vehicle dashboards, the E1 series suffers from glare under strong light. To address this problem, the E2 draws on the full lamination technology commonly used in smartphone screens and introduces the adaptive instrument system AMS. The distance between the screen part and the surface glass is It is greatly compressed, reducing the impact of total reflection , and the visual effect under strong light has been significantly improved.

For specific scenes with extremely strong ambient light at noon, the R&D team also proposed "solar spectrum recognition". At this time, the instrument panel will automatically switch to clear mode to ensure that the rider can clearly read the current vehicle information.

The tire pressure sensor

equipped with E2 is also a newly proposed function of E2. By adding a tire pressure sensor to the tire, the vehicle ECU can read the corresponding tire pressure data and upload it to the cloud. When the tire pressure is higher/lower than the set value, the system will automatically alarm and push it to the user's mobile APP.

Reading tire pressure information on the APP

Mobile phone wireless charging is an optional feature in the E2 model. This function is mainly to solve the user's trouble of tangled charging cables while riding. E2 currently supports mainstream wireless charging protocols on the market, so most mobile phones with this function can be used.

E2 is equipped with optional wireless charging while retaining the USB interface

Of course, considering that wireless charging is not yet popular, the E2 also retains the USB interface to facilitate users to charge mobile phones or other electronic devices.

Engineer Zhang Zhaoxu also said in the end that since the E2 currently on display is only a prototype, some functions need to be further optimized, such as the tire pressure monitoring function, which is currently only available in the internal beta version of the APP and needs to wait until the E2 is mass-produced and launched. It will be open to users, and it is very likely that tire temperature alarms, air leakage alarms and other more practical "black technologies" that will enhance user experience will be added.