Talking about the equation of the first Leopard 5 model Leopard DMO hybrid off-road platform
As the first model of the brand, the Leopard 5 under BYD Equation Leopard is positioned as a new energy hard-core off-road medium and large SUV, which will be equipped with non-loaded body and plug-in hybrid system. Among them, the new DMO super hybrid off-road platform will be the first technical trump card of Leopard 5. What are the highlights of this technology? Let’s take a look at it first.
● The latest information of equation Leopard 5.
As the first model of Equation Leopard brand, Leopard 5 manufacturers are still very cautious about its information disclosure. Judging from the official information released at present, the new car is built on BYD’s new DMO super hybrid off-road platform, positioned as a medium and large SUV, adopting a design language called "Leopard Aesthetics" and equipped with Yunqi -P intelligent hydraulic body control system. The price of the new car is expected to be around 400 thousand yuan, and the delivery will be completed within the year.
In terms of performance configuration, Leopard 5 is the first model equipped with BYD’s new DMO super hybrid off-road platform, and Yunqi -P intelligent hydraulic body control system is also equipped. At the same time, the new car will be equipped with two motors and three differential locks (including electronic differential system), which will further enhance the power and the upper limit of extricating from difficulties. In addition, the Leopard 5 will adopt a vertical engine layout and have a comprehensive endurance performance of 1200km. The new car is expected to be unveiled at the upcoming Chengdu Auto Show, and interested friends can pay attention to it.
● DMO super hybrid off-road platform
The black technology on Leopard 5 is quite rich. In addition to the Yunqi -P intelligent hydraulic body control system (portal), it also adopts a brand-new DMO super hybrid off-road platform, which is the key technical support for Leopard 5 to have super off-road capability.
Leopard 5 supports fast charging, and it takes only 16 minutes to charge the battery from 30% to 80%. In the case of full oil and full electricity, the comprehensive cruising range exceeds 1200km. Oil and electricity can be used, and long battery life will help users travel all over the country.
■ Longitudinal engine hybrid system
"DM" in DMO super hybrid off-road platform refers to BYD DM dual-mode hybrid technology; And "O" means Off-Road, which means off-road. Taken together, DMO is the abbreviation of Dual Mode Off-Road, which is a set of hybrid electric platform technology specially developed for off-road
At the same time, the longitudinal engine also reserves more space for the layout of the double wishbone independent front suspension and the cloud -P system, which is a scheme choice after weighing the advantages and disadvantages of many parties.
■ EHS hybrid special gearbox adopts a new design.
In addition, although DMO and DM-i both adopt the configuration of double motors in series and parallel, their EHS hybrid gearbox designs are quite different. At present, BYD has not disclosed the specific structure of the EHS hybrid gearbox on the DMO platform.
SiC silicon carbide power semiconductor components are also one of the necessary technical configurations for the 800V voltage architecture that is being popularized. Leopard 5′ s EHS hybrid gearbox is also integrated with electronic differential system for the first time, which can actively lock when one wheel slips/idles, transfer the driving force to the wheel with adhesion, and improve the passability of the vehicle under complex off-road conditions.
■ Adapted to 1.5T and 2.0T engines.
DMO platform models will be equipped with 1.5T engine or 2.0T engine, of which the maximum power of 1.5T engine is 143kW and that of 2.0T engine is 180kW, and the thermal efficiency of both engines will exceed 40%.
Leopard 5 will be equipped with a 1.5T engine. As can be seen from the engine exhibition at the conference site, this 1.5T engine adopts advanced technology configurations such as intake/exhaust variable timing valve system (the intake valve timing adjustment mechanism is in the form of motor control, which can quickly adjust the intake valve timing phase at a large angle to realize Miller cycle working mode with expansion ratio greater than compression ratio), cylinder head with integrated exhaust manifold, direct injection in high-pressure cylinder and pulley-free design.
This 1.5T engine can achieve very high thermal efficiency in some working conditions, thus further reducing the fuel consumption when the engine (driving generator) generates electricity and when the engine directly drives the vehicle.
■ Low gear and differential lock
As mentioned earlier, in order to realize the four-wheel drive function, Leopard 5 has arranged a motor on the rear axle, which has a peak power of 285kW and a peak torque of 400N·m, and its power output is stronger than that of the front axle drive motor.
Because Leopard 5 has no central transmission shaft, its front axle power and rear axle power are decoupled mechanically, which gives great freedom to the distribution of front and rear axle power. When the power of the front and rear axles of Leopard 5 is distributed at 50:50, it is equivalent to locking the "central differential lock", which can make the best use of the road auxiliary force of the upper four wheels and further improve the vehicle’s ability to get out of trouble.
■ Battery pack arranged on the chassis
The battery pack of Leopard 5 is arranged between two longitudinal chassis beams. BYD officially calls this design "CTC", that is, the battery chassis integration of Cell To Chassis. Leopard 5 has a high-strength double-layer protective plate at the bottom of the battery pack, which can resist the impact energy of 1200J J.
Leopard 5 adopts BYD’s unique blade battery technology, and the battery level can achieve high safety without explosion and fire in the acupuncture test. The direct cooling and direct heating technology of heat pump is superimposed with active and passive temperature equalization design, so that the battery pack of Leopard 5 can adapt to different temperature environments from -40℃ to 60℃.
At present, most models sold by BYD are designed with single-layer blade batteries. It is believed that this double-layer blade battery design will become more and more common as BYD’s new cars with non-loaded bodies are listed one after another.
■ Front and rear double wishbone suspension system
The front and rear suspensions of Leopard 5 are in the form of double wishbone, and the stout control arm gives people stronger confidence in reliability and durability. This suspension system provides a good hardware foundation for Yunnian -P intelligent hydraulic body control system.
Yunqi -P can adjust the height, damping and stiffness adaptively, and has the function of four-wheel linkage. The system can realize the height adjustment range of more than 200mm, and support the functions of extreme extrication, camping leveling, convenient fetching and so on. At the same time, the multi-damping mode adjustment of urban driving gives better consideration to maneuverability and comfort.
■ It took 4 years to develop, covering 150 off-road working conditions.
Leopard 5 has been developed for 4 years, covering more than 30 off-road venues and 150 off-road conditions in China, with a cumulative test mileage of more than 1 million kilometers. Under various off-road conditions, Leopard 5 has a bright performance.
■ Leopard U-turn function
Leopard 5 supports the "Leopard U-turn" function. By making the front and rear wheels at diagonal positions rotate in opposite directions, the turning radius is reduced to 3.4m on off-road roads with relatively low adhesion, which makes it easier for vehicles to pass through some narrow intersections.
This working mode of reverse rotation of front and rear wheels is difficult to realize in ordinary fuel four-wheel drive vehicles, because these vehicles are driven by mechanical means, and the power of front and rear axles is coupled. Only after the dynamic decoupling of the front and rear axles is realized, can the leopard-like U-turn functions such as looking up at U8 and Leopard-5 be realized.
■ Support the car to charge the car
Leopard 5 supports 20kW in-situ charging function, that is, let the engine drive the generator to generate electricity, and charge the battery pack with 10% of the electricity in 10 minutes.
It is worth mentioning that, like other hybrid models of BYD, Leopard 5 also uses 12V Ferrous lithium phosphate starter battery to replace lead-acid battery, which is more environmentally friendly (completely lead-free) and has a longer service life (the same life as the whole vehicle). BYD is the first manufacturer in the world to adopt this technology, which has been used for 6 years.
■ High-voltage electric winch
Winch is a self-protection and traction device for off-road vehicles, which can be used for self-rescue in harsh environments such as snow, swamp and desert, and may be used for clearing obstacles, dragging articles and installing facilities under other conditions.
● Full text summary:
The rise of the trend of pursuing individuality and longing for a long journey and the maturity of new energy technology have made the market segment of new energy hard-core off-road SUV heat up rapidly, and new models have sprung up. Most of these new products are China brand products. Equation Leopard 5 is a model born for this era. It is equipped with technologies such as Yunqi -P and DMO platform, which has certain innovation in design and immediate performance improvement.
In China, the involution of every new market segment is fierce, and the competing products of Leopard 5 are also poor, including Toyota’s brand-new Prado, which has a full reputation, and the tank 500 Hi4-T of Great Wall Motor, a veteran SUV player in China. A fierce battle began immediately. Who are you more optimistic about in front of the screen? Leave a message in the comment area and share your opinion.