Cummins Z14 engine + Eaton 12-speed AMT gearbox power pack High-horsepower, lightweight, modular Z14 engine upgrade
The Cummins Z14 engine is the latest product based on the original Z13 engine, which is upgraded from all aspects of weight, torque, reliability and emissions. The Z14 engine has a maximum horsepower of 600 hp, a power range of 358-441 kW and a torque range of 2400-2750 N·m. The weight is further reduced by 250kg, the torque is increased by 14%, and the power and torque are both at a high level in the industry.
Z14 engine power coverage 358-441kW
In addition, in order to reduce the failure rate, the whole machine adopts a modular design. For example, the gear tooth cover and the cylinder block are integrated design, the oil pump and the water pump are combined together, etc., compared with the national five models, the number of parts is reduced by 20%, which is why the engine is reliable. There has been a big improvement.
Gear cover and cylinder are integrated design
It is understood that in addition to the upgrade of the aftertreatment system, this engine has one more part between the supercharger and the post-treatment oxidation catalyst (DOC): Exhaust Throttle Valve (ETV). This part is a unique part of the Cummins VI engine. Its main function is to adjust the exhaust temperature required by the engine under various working conditions to meet the temperature required for the post-processing system to meet the discharge demand and ensure the normal operation of the engine. With ETV, the engine is more advantageous in terms of power and fuel consumption.
Exhaust throttle valve
Seven advantages + lightweight design lead the mainstream of AMT gearbox
Matching the engine is the Eaton 12-speed AMT gearbox, which is known to be designed for long-haul transportation applications and is extremely lightweight. Compared to the AMT of other high-end competing products (with retarder), it is 49 kg lighter.
Eaton 12-speed AMT gearbox
In addition, this gearbox has seven advantages;
1. Smooth and advanced shifting strategy can improve the driver's driving experience;
2. Use predictive technology to perform predictive shifting of shift decisions;
3. The industry-specific transmission oil pressure sensor notifies the driver when the oil level is low to prevent internal pinion ablation;
4, the oil demand is 30-50% lower than competing products, the oil change interval is 25-90% longer than the competition product;
5. Make full use of the retarder to help the vehicle decelerate and brake on the mountain road section;
6. The rear PTO opening design can provide power for other additional Auxiliary Equipment;
7. Internal electrical system wiring minimizes exposure and corrosion of wires and connectors for improved reliability.
Cummins Centennial Edition
As far as the domestic market is concerned, the voice of heavy-duty trucks equipped with AMT gearboxes is getting higher and higher. Although this gearbox has not been introduced to the Chinese market, it has sold more than 100,000 units in the United States, accounting for 70% of the US market. It is a very mature product. Fortunately, the gearbox is currently being introduced in the Chinese market, and it is expected to match the model on the road next year.
Low-key luxury - Cummins BP74E power battery on the road
Just next to the latest power combination of the Cummins Z14 engine + Eaton AMT gearbox, "standing" the "low-key" Cummins power battery - BP74E (74kWh battery pack). It is understood that this battery uses high energy density lithium ion technology and patented control technology to maintain high battery performance over a longer zero emission range. The modular design allows the system to adjust to the capabilities and duty cycle of the application.
Cummins Power Battery---BP74E
Like Cummins' new powertrain, the power battery was put into actual operation in the North American market at the end of 2019, and it is expected to enter the domestic market in 2020. Some people may say that such endurance is too small, in fact, the battery capacity of a domestic brand electric heavy-duty truck can reach 300kWh. If Cummins power battery is used, only four BP74E power battery packs can be installed in parallel. Because it is still in the testing stage and has not been put into the market, this show does not have much information for this piece of power battery, but it is certain that pure electric heavy truck will become a development trend.
Cummins Power Battery---BP74E
Obviously, Cummins has a good understanding of the Chinese market. No matter the gradual rejuvenation of domestic users, the market demand for AMT gearboxes is increasing; or the strict development of the national six, power battery research and development, Cummins has a comprehensive layout. In the future, the heavy-duty power chain will develop in that direction, and we cannot judge. But from the latest products of Cummins, the global power leader, perhaps we already know the answer!
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