WeichaiYuchaiJiefangYunnei Quanchai internal combustion engines show off their “muscles” in the new energy campaign

[Original by First Commercial Vehicle Network]

Recently, the field of commercial vehicle power has ushered in an industry event - the 2024 China International Internal Combustion Engine and Power Equipment Expo (hereinafter referred to as the "Internal Combustion Engine Expo").

As the leading independent brand manufacturers in my country's engine industry, Weichai Power, Guangxi Yuchai, Jiefang Power, Quanchai Power, and Yunnei Power showed a new look at this internal combustion engine exhibition, and traditional energy and new energy products were unveiled at the same time. In the new energy frontier fields that have attracted attention, a number of black technology and hard-core products were unveiled, reflecting that traditional power companies are exploring development ideas under the energy revolution and have achieved significant results in the new energy field.

Next, let’s take a look at what blockbuster new products these five companies have brought to the field of new energy!

Weichai Power: 2 models, joint venture power batteries with BYD unveiled

Weichai Power has brought 9 power products to this internal combustion engine, including 2 new energy commercial vehicle power products, accounting for 22%, namely 1 power battery and 1 fuel cell engine.

[Original by First Commercial Vehicle Network]

Recently, the field of commercial vehicle power has ushered in an industry event - the 2024 China International Internal Combustion Engine and Power Equipment Expo (hereinafter referred to as the "Internal Combustion Engine Expo").

As the leading independent brand manufacturers in my country's engine industry, Weichai Power, Guangxi Yuchai, Jiefang Power, Quanchai Power, and Yunnei Power showed a new look at this internal combustion engine exhibition, and traditional energy and new energy products were unveiled at the same time. In the new energy frontier fields that have attracted attention, a number of black technology and hard-core products were unveiled, reflecting that traditional power companies are exploring development ideas under the energy revolution and have achieved significant results in the new energy field.

Next, let’s take a look at what blockbuster new products these five companies have brought to the field of new energy!

Weichai Power: 2 models, joint venture power batteries with BYD unveiled

Weichai Power has brought 9 power products to this internal combustion engine, including 2 new energy commercial vehicle power products, accounting for 22%, namely 1 power battery and 1 fuel cell engine.

Weichai power battery

A power battery, a joint venture battery product between Weichai and BYD, is used in heavy trucks, light trucks, buses, construction machinery and other fields. The electricity of the on-site exhibits is 96 kilowatt hours. According to reports, the battery products jointly produced by Weichai and BYD can cover 13-765 degrees of electricity, and the battery energy density is ≥175Wh/kg; it uses a new LEP blade battery, which does not emit smoke or fire when a needle is inserted; the operating temperature range is from minus 35 degrees to minus 35 degrees. 65 degrees, rechargeable at minus 20 degrees; it has four core selling points: super safety, super strength, super lifespan and super environment.

The other is a 110-kilowatt fuel cell engine, which is mainly used in medium and heavy commercial vehicle scenarios such as sanitation, traction, and highway buses. Its rated power is 110 kilowatts, the working current is 20~410 (A), the working voltage is 280~560 (V), the weight is 185 kg, the maximum efficiency is 61.2%, the life span is 30000h, and the mass power density is 605W/kg. The fuel cell engine adopts topological lightweight design and subsystem modular development, with a mass power density of 605kg/kg. It adopts intelligent thermal management technology to achieve high-precision control of rapid dynamic load changes and steady-state conditions.

Weichai 110kW fuel cell engine

Weichai Power is the only company exhibiting commercial vehicle power batteries at this internal combustion engine show.

Yuchai Core Blue: 4 models, covering the three major technical routes of pure electric, hybrid and fuel cells

Yuchai brought 13 blockbuster products to this internal combustion engine exhibition, including 4 new energy commercial vehicle power models, accounting for about 31%, including 1 pure electric box drive system, 1 hybrid system and 2 Commercial vehicle fuel cell power system.

Specifically, the pure electric box drive system exhibited by Yuchai, model YCET280-3421, is the pure electric heavy-duty truck drive system with the highest specific power in China. The H-PIN high-speed flat wire water-cooled motor it carries adopts a high-efficiency flat wire motor design, with tightly arranged windings, small size, and strong wire heat dissipation capacity. The rated power of the motor is 280 kilowatts, and the peak power is 430 kilowatts. The peak power is higher than that of competing products. 20 kilowatts higher; the maximum efficiency of the motor is 96.44%, the motor efficiency reaches the double 90 level, and the power consumption under comprehensive operating conditions is more than 3% lower than competing products; it has high adaptability, adopts industry common interfaces, and can be adapted to mainstream speed changes on the market box product. This power system is mainly equipped with 31 to 49 tons heavy trucks (tractors, dump trucks, cement mixer trucks, etc.).

Yuchai pure electric box drive system (280 kW)

Yuchai hybrid system, product model YCPD230-S0422, system weight 805kg, is mainly equipped with 9~10m highway buses, 16~18t trucks, refrigerated trucks, dump trucks, garbage compression trucks, etc. This hybrid system uses a high-speed permanent magnet synchronous motor with a maximum speed of ≥15,000 rpm; it creatively proposes an eCVT hybrid configuration of engine + dual motors + dual planetary gearboxes, which is the first in the industry; it adopts three sets of shafts, dual motors in parallel and global optimal lightweighting Designed with high integration and compact structure; electromechanical performance is highly coupled and has high fuel saving rate; in terms of power, it adopts engine and dual motor torque compensation control to achieve no power interruption and ensure acceleration performance; in addition, it also has multi-function and high adaptability. It has the characteristics of adaptability, functional modularity, and a variety of typical working mode switching, such as pure electric drive, hybrid drive, engine independent drive, parking power generation, etc.

Yuchai hybrid system

Among the two commercial vehicle fuel cell systems, one has a rated power of 60 kilowatts and the other has a rated power of 125 kilowatts. In terms of core technology, they all use graphite plate stacks with completely independent intellectual property rights. Through independently designed membrane electrodes + independently designed graphite bipolar plates, the best performance of the stack is achieved through intelligence. Among them, the 60-kilowatt fuel cell system has a rated efficiency of >47% and can achieve a cruising range of over 400 kilometers in 8.5-10.5-meter bus application scenarios; the 125-kilowatt fuel cell system is suitable for traction, cargo, and dump buses. , engineering machinery, etc., rated efficiency ≥45%, cruising range of 500 kilometers and above.

Yuchai 125kW commercial vehicle fuel cell system

Yuchai 60kW commercial vehicle fuel cell system

It can be seen that whether it is a pure electric heavy truck drive system, a hybrid system, or a fuel cell system, Yuchai's exhibits are very powerful. Among them, Yuchai’s pure electric box drive system is the pure electric heavy-duty truck drive system with the highest specific power in China; Yuchai’s hybrid power system creatively proposes an eCVT hybrid configuration of engine + dual motors + dual planetary transmissions; Yuchai’s 125 kilowatt fuel cell system It has the highest power rating among the fuel cell systems at this show.

Liberation power: 3 models, including 2 electric drive axles and 1 P2 hybrid powertrain

Jiefang Dynamics brought 8 exhibits, including 3 new energy products, accounting for 37.5%, namely 2 electric drive axles and 1 P2 configuration hybrid powertrain.

Specifically, the Jiefang medium-sized electric drive axle, product model CAR13E290S2, can be adapted to medium-sized special-purpose and cargo-carrying, 6×4 heavy-duty traction and other models. It adopts a dual-motor parallel configuration and has advanced configuration, high reliability, and high efficiency. Safety, high efficiency, energy saving, high quality, low maintenance and other advantages. It has an axle load of 13 tons, an output torque of 32,041 Nm, a speed ratio of 46.312/38.01/18.155, a motor power of 65/140kW×2, and a B10 lifespan of 800,000 kilometers. It adopts a dual-motor parallel configuration, and the braking recovery utilization rate can achieve 100% braking energy recovery, low power consumption, long cruising range, and can bring users a better subjective experience of power and comfort.

Jiefang medium-sized electric drive axle

Jiefang Light Electric Drive Axle is the latest new energy axle launched by Jiefang. It is mainly targeted at the light urban logistics market and can meet the needs of pure electric, fuel cell and extended-range hybrid light vehicles with a full load of 6.5~8.5 tons. It adopts a coaxial planetary gear train configuration, with the best overall performance and the most compact structure, completely releasing the space inside the frame, and has good trial assembly and vehicle smoothness. It is the optimal configuration of the electric axle for light vehicles. The rated/peak power of the motor is 65/140 kilowatts and the maximum output torque is 6,000 Nm. It is suitable for a variety of vehicle layouts and can meet the load-carrying requirements of the entire vehicle of 6.5~8.5 tons. In addition, Jiefang's lightweight electric drive axle has the advantages of lightweight and low cost.

Jiefang light electric drive axle

The CA4DT2 P2 configuration hybrid powertrain is a new generation hybrid product launched by Jiefang Powertrain Division for the light truck market. It has the characteristics of fuel economy, reliability, strong power, compact structure, and affordable price. The high-efficiency areas of the engine and motor match each other. The measured fuel saving rate in the legal and standard cycle exceeds 15%, and the fuel saving rate in inter-city logistics in mountainous areas reaches over 28%, saving users worry and money. The power output is strong, and the newly developed hybrid-specific engine combined with the high-efficiency P2 motor developed for the light truck market can achieve the goal of increasing acceleration from 0 to 70 km/h by more than 35%.

Jiefang CA4DT2 P2 configuration hybrid powertrain

Yunnei Power: 1 model each of fuel cell system and hybrid powertrain

Yunnei Power brought four star products to this exhibition, including two new energy power systems, accounting for 50%, one each of the automotive fuel cell system TWLQ-120 and the Derun 25/30 hybrid powertrain. payment.

Among them, the automotive fuel cell system TWLQ-120 is a product of Yunnan Heyuan New Energy Power Technology Co., Ltd., a subsidiary of Yunnei Power Holdings. It has a rated power of 120 kilowatts, a maximum efficiency of 60%, and can be started at a low temperature of minus 30 degrees Celsius. This product is developed based on the water-cooled/graphite plate platform and covers 30-240 kilowatts. It is suitable for all types of urban buses/passengers, light, medium and heavy-duty cargo, logistics vehicles and tractors, etc. It is ultra-environmentally friendly, highly adaptable, High efficiency, ultra-reliability and other advantages.

Yunnei Power 120kW vehicle fuel cell system

Yunnei Derun 25/30 hybrid powertrain meets the requirements of the fourth stage of fuel consumption regulations. Compared with traditional vehicles of the same type, the fuel saving rate can reach 30%; the engine has no idling condition and operates in the economic range, reducing harmful substances in exhaust gas. Emissions; different power supplies can be selected to meet HEV and PHEV routes; in addition, it also has product advantages such as stepless transmission without power interruption and automatic transmission. When matched with the D20 engine, it is suitable for 4.5 to 8 tons urban light trucks, which can realize HEV and PHEV; when matched with the D25Pro engine, it is suitable for 8 to 12 tons of medium trucks, engineering vehicles/sanitation trucks/dump trucks, etc.

Yunnei Derun 25/30 hybrid powertrain

Quanchai Power: 2 models, innovative membrane electrode products realize import substitution

At this internal combustion engine exhibition, Quanchai Power presented 6 diesel engines and 2 new energy products, with new energy accounting for 25%. Among them, the new energy products are DHT hybrid gearbox and membrane electrode series products.

Among them, the DHT hybrid transmission has various application scenarios. In intra-city & inter-city cargo transportation, it further expands the fuel-saving advantage on the basis of pure electric fuel-saving. Compared with the traditional 6MT drive, the comprehensive fuel consumption and fuel saving rate reaches >30 %; Dual-motor drive can reduce power attenuation with limited engine gears and no additional motor cost; Quanchai 3-speed DHT has significantly improved power performance compared with competing products; 4.5-ton light truck CHTC-LT cycle DHT The overall efficiency of the system can reach 89.9%.

Quanchai DHT hybrid transmission

Surprisingly, in the field of hydrogen fuel cell technology, Quanchai Power has brought a series of membrane electrode products. As we all know, the membrane electrode is the core component of the hydrogen fuel cell and is called the "heart" of the hydrogen fuel cell. The membrane electrode products brought by Quanchai Power include catalyst-loaded proton membranes and 7-layer membrane electrode products, both of which are independently developed and produced by Yuanjun Hydrogen Energy, a subsidiary of Quanchai Power. It is reported that Quanchai Power's membrane electrode products are highly competitive and can achieve import substitution. Not long ago, it has received orders for tens of thousands of square meters from customers.

Quanchai Membrane Electrode Products

Conclusion

In recent years, driven by energy changes and policies, my country's commercial vehicle industry is accelerating the process of new energy, showing a trend of parallel development of pure electric, hybrid, fuel cell and other technical routes. For traditional power companies, it is both an opportunity and a challenge. From the appearance of high-tech achievements at this internal combustion engine exhibition, we can see that various companies are well prepared on the new energy track and are constantly innovating and improving. They are using leading technology to make my country's new energy commercial vehicles more reliable and economical. , efficient, safe and intelligent, accelerating the arrival of the era of green and low-carbon transportation.