breakthrough!"CRRC Passenger Creation" nationwide -pioneered dual -streaming city rail trains are put into operation in the Jiangju Line

On the afternoon of August 6, the first double -current city (suburban) railway -Jiangyou Line was officially opened and operated. Passengers only took 28 minutes from Jiangjin Shengquan Temple to Dadukou Jumping Station. This is also the first opening of Chongqing to open. The city (suburban) railway operating. The line adopts the dual -streaming city rail vehicle independently developed by CRRC Changke Co., Ltd.. The train uses the first domestic dual -flow automatic switching technology to provide a new operating model for the "one vehicle direct" and "zero transfer" in the suburbs and urban areas. Provide more convenient travel solutions for Chongqing citizens.

Fill in domestic technology gaps

It is understood that the current rail transit power supply system in my country is usually divided into 25 kV and DC 1.5 kV. The exchange is 25 kV, and the power supply distance is long. It is suitable for trunk railway, intercity railway, and urban (suburban) railway; DC 1.5 kV, the power supply distance is close, suitable for urban subways and monorails. Due to the differences between the power supply system and the vehicle limit, the subway, monorail trains and the city (suburban) railway trains are divided into two rail networks with different technical characteristics, which are usually not operated across the line.

The dual -streaming city trains developed by CRRC Changke Co., Ltd. can operate on the two power supply lines of 25KV and DC 1.5KV, and can complete dozens of movements in 1 minute to achieve the interconnection of the two types of line lines. Essence By using the automatic switching control technology of the traction power unit, the train can achieve a steady operation of up to 120km/h on the exchange of 25KV suburban railway, which can meet the high -speed operating needs of the vehicle while adding anti -snake shock absorbers to improve passenger comfort; On the DC 1.5kV urban rail transit line, priority to ensure the acceleration performance of the vehicle, which can achieve an emergency stop of 100km/h and improve operating efficiency.

Through the switching on different system lines, the penetration operations of urban railway and urban rail transit are realized, and domestic rail transit technology gaps are filled. At the same time, the train is based on the existing Chongqing AS train platform, and also has technical advantages such as strong climbing ability, small turning radius, small axis, and large passenger capacity.

Create a more comfortable ride environment

The train uses noise analysis control technology to integrate acoustic design into the entire process of vehicle design. Optimization and improvement of wheel noise, electrical equipment noise, air power noise, etc., not only provide passengers with a more comfortable ride environment, but also reduce the impact of vehicle operation on the surrounding environment of the line.

The train configuration steering frame axis temperature monitoring system, battery health management system, bow network monitoring system and other intelligent monitoring equipment to achieve real -time monitoring of the operating status of key equipment. Adopting the vehicle and ground all -in -one system transfer relevant data to the ground server, intelligent analysis and prediction of the vehicle status, and comprehensively improve the intelligent and safety of the vehicle.

Trains first developed and developed in the industry for the first time to adapt to the closure of the 120km/h speed level. At the same time, the pressure wave control technology was used to automatically close the air -conditioning wind door before the vehicle entered the tunnel to improve the sealing performance of the vehicle, effectively solve the discomfort caused by passengers due to pressure differences caused by pressure differences. Feelings, improve the comfort of riding.

Through the simulation calculation of performance indicators such as temperature, humidity, and wind speed in the car, the train innovative adopts a mid -top decentralized small hole air supply solution to avoid passengers from being blown out of air -conditioning and comprehensively improve the ride experience.

Lead the new wind direction of urban rail transit

After ten years of research, CRRC Changke Co., Ltd. has achieved breakthroughs in the integrated technology integration technology of the dual -current rail vehicle. It has successively completed vehicle development, test verification, technical platform construction and compilation of general technology standards. The successful development of trains will help the construction of the Economic Circle of Chengdu -Chongqing Shuangcheng, further enhance the level of industrialization of rail transit equipment in Chongqing, and promote the sustainable and rapid development of the Chongqing rail transit equipment industry.

The investment operations of dual -streaming trains will further solve the problem that the internal subway lines inside the urban internal subway line cannot be extended. The ride experience of "Zero Transvanion" explores a new path for the diversified development of rail transit in my country.

Source: Changchun Published

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