Under the strong impetus of the "new four modernizations" of automobiles, the comprehensive transformation of major car companies from fuel vehicles to new energy vehicles has become a foregone conclusion. However, it is undeniable that the completion of the transformation is not an overnight thing, and the traditional fuel vehicles that are currently powered by fossil fuels are still occupying an absolute share of the market. Many people in the industry believe that the era of coexistence between fuel vehicles and new energy vehicles will continue for a long time.
Not long ago, the third-generation Roewe RX5 official map was released, exquisite styling, trendy design, still maintain the first two generations of models at the beginning of the appearance of the sense of surprise. However, in this prosperous era of cars with the label of "personalization", it is not enough to capture the hearts of consumers by aesthetics alone. And the RX5 is new, and not only new on the surface.
With the third-generation RX5 on the agenda, on April 14, SAIC Roewe showed the relevant information about the SAIC Blue Core Power GS61 1.5T supercharged direct injection engine equipped with the new car for the first time. It is worth noting that this "strong heart" has once again achieved comprehensive evolution on the basis of inheriting the genes of the top ten engines of the previous generation of SAIC Blue Core Power "Chinese Heart", which can be described as a combination of high value and high quality of the new car, highlighting the strong product strength.
Continue the "double top ten" powertrain gene, and upgrade it with five major technologies
So, where is this new GS61 1.5T supercharged direct injection engine? In general, this new engine continues the "double top ten" powertrain gene, but also from the combustion optimization, gas exchange, thermal management, friction reduction and NVH, the realization of five major technical upgrades.
Friends who know about gasoline vehicles should know that the power output level of the vehicle directly depends on the common performance of the two major parameters of power and torque, of which the output of power depends first of all on the gasoline combustion efficiency. Optimized for combustion efficiency, the GS61 1.5T engine features a new generation of SGCS combustion systems, combined with a 350 bar high-pressure fuel injection system and an electronically controlled variable-section turbocharger, capable of squeezing out a maximum power of 138 kW and a peak torque of 300 Nm. By comparing the 1.5T engines in the same class, this GS61 engine is undoubtedly one of the best.
Of course, in addition to providing the engine with a source of power for the vehicle, for the end market, consumers also attach great importance to the fuel consumption performance of the vehicle in the later stage. In the engine cylinder, the degree of fusion of gasoline molecules and air directly affects the combustion of oil volume, which also determines the final fuel consumption of the vehicle. The GS61 engine effectively controls the fuel consumption of the third-generation RX5 at 6 liters per 100 km (NEDC) through technical solutions such as low-pressure exhaust gas recirculation, achieving the same level of fuel economy.
We all know that in the cold start state of the vehicle, the internal structure of the engine needs to be briefly preheated, so that the engine can reach the working conditions of the normalization of vehicle driving. The shorter the warm-up time, the earlier the engine's work efficiency will be involved in optimal working conditions. In order to reduce the warm-up time of the engine, the GS61 engine is equipped with technologies such as high and low temperature dual circulation cooling system, thermal management module/double thermostat and electronic water pump EWP, covering the thermal management needs of various driving scenarios, which not only significantly improves cold start emissions and warm-up rate, but also brings better economy, which can be described as killing two birds with one stone.
In addition to combustion optimization and gas exchange, the key to solving the traditional efficiency of power and fuel efficiency depends on the thermal efficiency of the engine. Thermal efficiency refers to the ratio of the heat converted into mechanical energy in the engine to the heat consumed, in short, the proportion of thermal energy converted into mechanical energy is thermal efficiency.
In terms of thermal efficiency, the GS61 engine students through the electronic water pump, Fast VVT, pendulum dual-mass flywheel, continuous variable oil pump and water cooling intercooling system, low tension timing transmission system, as well as journal size optimization, friction reduction coating and other technical measures combined application, so that the friction loss compared with the previous generation of products reduced by 21%, while the maximum thermal efficiency increased to nearly 40%, the entire power system efficient operation area compared with the previous generation of products increased by 30%.
For a car, a large part of the excellent riding experience depends on the quietness of the car, which is commonly referred to as NVH performance. Just as the so-called "engine drops one decibel, sound insulation cotton is one millimeter thin", the level of NVH in the car also has a certain correlation with the engine. In terms of NVH optimization, the GS61 engine through the body structure and crank linkage mechanism of the lightweight design, as well as the timing system and fuel system and other key parts of the acoustic wrapping application, with more fine calibration optimization, idle sound power in the same class, can bring a quiet experience like an electric vehicle in the car.
In addition, the GS61 engine has 62 patented technologies that apply a series of key technologies such as direct injection in-cylinder, 350 bar high-pressure fuel injection system, cylinder head separation cooling, electronic water pump, variable-section turbocharging, continuous variable displacement oil pump, water-cooled intercooling, low-pressure exhaust gas recirculation, fast phase-modulated VVT and variable valve lift.
The first masterpiece of SAIC's new plant integrates digitalization, intelligence and automation
The third-generation Roewe RX5 is equipped with this auto blue core GS61 engine, which is the first masterpiece from the first phase of SAIC Zhengzhou Engine's new plant. The new plant is full of digital, intelligent and automated assembly lines in a production workshop of nearly 40,000 square meters, and an engine can be rolled off the production line every minute or more, achieving an annual production capacity of 300,000 units. In the future, after the second phase of the project is put into operation, the new plant will reach an annual production capacity of 600,000 units to meet more than 50% of SAIC's total national production capacity of passenger cars.
It is worth mentioning that in the production of various engine parts, the entire new saic motor Zhengzhou engine plant covers four automated production lines of engine block, cylinder head, crankshaft machining line and engine assembly line, with strong flexibility, high precision and fast speed. As the first product put into operation at the plant, SAIC Blue Core Power GS61 is expected to become another "masterpiece".
In this way, supported by the industry's leading engine factory, the new third-generation Roewe RX5 also has a high-quality power blessing under the impact of the shape.
Summary: It can be said that the power empowerment of the re-upgrading of the GS61 1.5T engine of SAIC Blue Core Power will help the Roewe brand maintain the re-growth of potential users in the new round of product competition with a strong posture of both appearance and performance for the third-generation RX5, and further accelerate the brand's move towards youth and personalization. According to relevant channels, the third-generation RX5 may be officially released within this month and is expected to be listed in the second quarter. Will the fully upgraded third-generation RX5 be included in your shopping cart?