According to the data of the Federation, the wholesale sales volume of hybrid vehicles in May this year was 58,000, up 58% year-on-year and 30% quarter-on-quarter. Under this general trend, more and more car companies have squeezed into the track of mixed market with a positive attitude.
Guangzhou Automobile Chuanqi is one of them. At the end of April, it released a high-profile hybrid technology brands-Julang Hybrid. Among them, the self-developed GMC 2.0 has attracted much attention.
What is its origin? Today, we will come to a plate of Chuanqi's huge wave hybrid GMC 2.0 and the technical details behind it.
1. Past lives were mixed with huge waves.
Speaking of GAC's hybrid technology, we must first turn over the earliest page-2009.
At that time, when many China brands were still developing in the field of fuel vehicles, GAC began the research and development of the first hybrid vehicle. 200 hybrid demonstration vehicles with P 1+P4 structure became the beginning of the dream.
After five years of grinding a sword, 20 14 years, Chuanqi launched the extended-range electric vehicle-GA5REV, which is one of the ancestors of extended-range electric vehicles in China.
The GA5 REV consists of a permanent magnet synchronous motor, a 1.0L engine and a 3 1kW generator. The rated power of permanent magnet synchronous motor is 45kW, the peak power is 94kW, and the maximum torque is 225n m. The 13kWh lithium iron phosphate battery pack on the vehicle can provide a pure electric cruising range of up to 80km.
Like other extended-range electric vehicles, the 1.0L engine is not directly involved in driving. When the battery consumes a certain amount of electricity, it will be charged. The fuel tank capacity is 45L, and the official said that the total cruising range can exceed 600km.
In 20 17, Chuanqi further upgraded the hybrid system, and prospectively changed the original direction of program expansion technology to series-parallel type, and launched GMC 1.0 hybrid system. "G" stands for the initials of GAC; MC is an electromechanical coupling system.
You know, at that time, many independent brands were still pushing the parallel mode, and the engine could not generate electricity, and the form was single. At that time, the popular slot in the circle "the dragon with electricity, the worm without electricity" described this kind of hybrid car.
The series-parallel connection adopted by Guangzhou Automobile Chuanqi GMC 1.0 has become the technical scheme of most China brand hybrid electric vehicles. Its main feature is that the engine participates in driving under suitable working conditions, which makes the whole system more efficient and dynamic.
GS4 PHEV and GA3S PHEV are two representative models of GMC 1.0 technology. Both of them are equipped with plug-in hybrid system consisting of 1.5L Atkinson cycle naturally aspirated engine and GMC electromechanical coupling system.
This power system is also imported into GAC Mitsubishi in the reverse direction and mounted on Qizhi PHEV, which reflects the reliability of technology.
At the beginning of 2020, Chuanqi upgraded this GMC 1.0, and upgraded the original Atkinson cycle naturally aspirated engine to a 1.5L turbocharged engine, which made it more efficient in power generation, more powerful in power, wider in application scenarios, and still able to continuously meet full-load output under insufficient power.
The second generation GS4 PHEV equipped with this technology can achieve NEDC fuel consumption of 4.6L/ 100km. With the blessing of the first generation DHT(GMC 1. 1), it took the lead in leading the fuel consumption of A-class plug-in hybrid SUV into the "4" era.
On April 26th this year, Chuanqi released the Hybrid technology brands-Huge Wave Hybrid.
Julang Hybrid integrates GMC dual-motor series-parallel hybrid system and THS power split hybrid system version 2.0, which cooperates with Toyota, and becomes the only independent brand with dual hybrid technology route at present.
Everyone is familiar with Toyota THS power split hybrid system. The second-generation GS8 twin-engine series is equipped with GAC 2.0TM engine and Toyota's fourth-generation THS hybrid system, and the comprehensive fuel consumption of NEDC is only 5.3L/ 100km.
With its low fuel consumption and high cost performance, it is gradually recognized by consumers. From May 5438 to May, the second-generation GS8 twin-engine series equipped with Toyota's brand-new fourth-generation THS hybrid system won the first place in China Hybrid Electric Vehicle (HEV).
If the GS8 double engine series has a strong hybrid gene combination, then the self-developed GMC 2.0 is a weapon to experience and transmit its own strength.
Not long ago, GAC Chuanqi held a limit test of a box of oil mixed with huge waves. The duration of the films Cool Me and Leopard is 5 1 hour. After overcoming a series of extreme challenges, such as complex terrain, large temperature difference between day and night, and ultra-high-intensity driving, the measured endurance of the membrane leopard is 1537km, the ultra-low fuel consumption is 3.0L/ 100km, and the membrane is cool 178.
Test environment: Datong-Zhangjiakou-Chengde-Chaoyang-Jinzhou-Panjin-Anshan-Shenyang (national highway)
Temperature: 15-35℃
Vehicle condition: cold tire pressure 2.8bar, ECO mode, load 1 person, no air conditioning.
What is the big move of 2.2? GMC2.0？
How does Julang Hybrid GMC2.0 achieve such fuel consumption performance? This needs to start with its working principle.
Julang hybrid GMC2.0 adopts the power combination of 2.0ATK Atkinson engine and GMC 2.0 electromechanical coupling system, and consists of two motors and 2AT transmission mechanism.
The main working principle is the well-known series-parallel mode, that is, when the vehicle is started or the SOC (battery remaining capacity) is high, the vehicle is driven by the driving motor;
Under low SOC and medium-low speed conditions, such as driving in urban areas, the system adopts series connection (extended range mode), and the engine drives the generator to generate electricity, and then drives the motor to drive the vehicle;
When driving at medium and high speed and cruising at high speed, the parallel mode is adopted, the vehicle is driven by the engine and the driving motor, and the generator can generate electricity or drive as needed. At this time, because GMC2.0 is equipped with 2AT transmission mechanism, the engine can also shift gears according to different vehicle speeds, further improving efficiency.
This mode which makes the advantages of engine and motor complementary will undoubtedly make the engine in the best working condition under different working conditions, and at the same time, it can realize efficient power coupling with the motor.
The resulting low fuel consumption and strong power are the biggest core advantages of GMC2.0 hybrid system.
First of all, the 2.0ATK Atkinson engine adopts GCCS combustion control technology (patented technology) and 350bar ultra-high pressure direct injection technology to improve combustion efficiency, and also adopts low-temperature cooling EGR, variable oil pump and other technologies to effectively suppress knocking and reduce friction, so that the thermal efficiency of the engine can reach 42. 1%.
Thanks to the perfect cooperation between 2.0ATK Atkinson engine and integrated dual-motor multi-gear DHT, multi-gear multi-mode drive and large torque output can be realized, and system efficiency and energy management can be optimized.
In addition, GMC 2.0 hybrid power system also introduces intelligent energy management strategy, which makes the energy-saving effect to a higher level. Simply put, it is to intervene and optimize the working state of the existing power system in advance according to the real-time road conditions, traffic flow and other information of car navigation and high-precision maps.
In addition to running farther and harder, GMC 2.0 hybrid system has three advantages: high quality, quieter and super smooth.
In terms of quality, GMC 2.0 hybrid system, like many brands, has undergone strict safety tests before being put into the market.
According to the official disclosure, there are nearly 50 GMC bench verification projects, and the single model (GMC260) has been verified more than 140 times, and the cumulative bench verification has exceeded100000 hours. The vehicle verification is equivalent to a mileage of 6.5438+million kilometers, covering cold, high temperature, plateau, high humidity, high corrosion (salt fog), mountains, dust and so on.
In terms of mute, because in urban areas, it is mostly pure electric drive EV mode, and the noise is low when driving. On the engine side, the 360-degree omni-directional mute project makes the parking power generation condition of the whole vehicle 3db(A) lower than that of the same class.
Fluency is easy to understand. GMC 2.0 is only driven by motor in pure electric and extended range modes, and the driving experience is like driving a pure tram. In the engine direct drive mode, the driving experience is quite smooth because there is no shift of the traditional gearbox.
3. Multi-channel parallelism of multi-wave mixing
Looking back at the history, it is not difficult to see that after many iterations, the fuel consumption performance of GAC Chuanqi's hybrid technology has been continuously optimized and the technology has become more and more mature. This stems from a brand's foresight in technology and market direction.
Focusing on the future, Chuanqi's mixed road does not stop there. In the future, GMC hybrid system will also cover plug-in hybrid, extended-range hybrid and hydrogen power system, covering all hybrid scenarios.
In product planning, Shadow Cool is just a starting point, and the mixed version of Shadow Leopard and M8 will also meet with you one after another.
This means that GAC Chuanqi's hybrid technology is fully entering the mainstream consumer market. On the one hand, huge wave mixing has core advantages and technical details such as smoothness and fuel economy; On the other hand, there are many technical routes to meet the needs of consumers.
In today's turbulent market, these are the emboldened spirits of GAC Chuanqi.