[Pacific Automotive Network New Car Channel] On June 30, SAIC Roewe conducted an online live class to deeply interpret the space, quietness, comfort and driving experience of the new third-generation Roewe RX5/super hybrid eRX5. By disclosing detailed test data and R&D ideas, the NVH performance of the new car will also be greatly improved.
Optimization of interior space and field of vision/Vehicle height-to-width ratio 88%
The new third-generation Roewe RX5 (ask for lowest price | check specifications)/Super hybrid eRX5 has a wheelbase of 2765mm, a body of 1890mm, and " The vehicle height is reduced under "zero compression", so that the height-to-width ratio of the vehicle reaches 88%, making the vertical space in the cabin as high as 1200mm, providing ample headroom. The elbow room on one side of the driver's side in the front row reaches 388mm, and in the rear row it is 400mm. At the same time, the width and height of the armrest also leave ample room for elbows to stretch.
The front and rear adjustment range of the new car's seats has been expanded to 240mm, and the height adjustment range has been expanded to 60mm to meet the sitting posture adjustment needs of users of different body shapes. According to officials, passengers with a height of about 1.73 meters can sit in the front and rear rows respectively and adjust their sitting postures to a comfortable state. At this time, the rear passengers still have nearly 3 fists of knee room and nearly 1 meter of leg room. Comfortable.
In terms of luggage compartment space, the luggage compartment size is 910*1028*455mm, with a total volume of 340~1291L. It can easily accommodate three suitcases of 28 inches + 24 inches + 20 inches without folding the curtain. In addition, there are as many as 22 storage spaces in the passenger compartment and luggage compartment, such as storage boxes under the carpet in the luggage compartment, net pockets on both sides of the luggage compartment, storage boxes at the rear of the central console, and hollow storage boxes in the central console. Give users a variety of storage options.
Compared with the old model, the new car uses technologies such as reducing the width of the ADB cover and lowering the center of mass of the vehicle to reduce the blind area of the front view by 1.2m. Children squatting and playing can be detected in advance, and clear vision is provided to ensure safe driving.
In terms of ergonomic design, the new car has adjusted the tilt angle of the central control, the size of the ball head, and the relative position of the steering wheel and the screen. In order to improve the user's comfort during long-distance driving, the new car uses hand adjustment. The integrated space zero-gravity seat with a space of 43 mm, and the accelerator pedal have also been evaluated and optimized hundreds of times through human-machine verification models to achieve a light feeling on the feet.
Multiple noise reduction measures/NVH optimization
In order to reduce vibration and absorb noise, the new car has been innovatively designed to focus on engine vibration and sound quality, vehicle wind noise, vehicle road noise, component noise and other areas, and adopts With multi-layer shock-absorbing sound insulation and high-magnification sound-absorbing design, officials say the silent effect at idle speed is comparable to that of electric vehicles. We will test the specific quietness for everyone in the future.
In the transmission path of vibration and noise, the new car applies the flexible subframe structure for the first time to separate the vibration from the ground and the cockpit, bringing better shock absorption effect and good road noise performance. The car body torsional stiffness of this model is as high as 25,000Nm/deg, and the body mode is as high as 45Hz. The strong structural design effectively reduces noise from the chassis and road surface, while suppressing engine vibration noise. The
T engine mount and tapered gearbox mount structural forms, in addition to ensuring structural strength, also provide 10 times the vibration isolation rate and 190Hz ultra-high modal front wall, effectively reducing the overall impact caused by engine vibration. The car responds.
The new third-generation Roewe RX5/super-hybrid eRX5 covers more than 41 muting measures throughout the car. Acoustic partitions are used in 21 key parts such as the front cabin acoustic package, lower body acoustic package, and body cavity, such as sound insulation pads in the front wall. It adopts a "sandwich structure" designed with multi-layer shock absorption and sound insulation, and its double-layer wall effect can effectively isolate the noise in the engine compartment.
In terms of static NVH, after official testing, the idling noise of the new car is lower than 36dB, which is lower than the ambient noise in the library (40dB). The vehicle idling vibration is 0.02m/s2 (the average level of the same class is 0.05m/s2).
In terms of dynamic NVH performance, officials said that at different vehicle speeds, the acceleration noise and vibration performance of the new car is also better than that of similar models. The acceleration noise is 1-2dB better than the industry average, and the acceleration vibration design is up to 0.07m/s2 better than the industry average.The new
car has polished the shape of the entire vehicle, various surfaces and fine structures, and carried out multi-dimensional noise reduction for air intake, cavity and pressure pulsation. It has undergone 40 hours of wind tunnel test verification and 138 versions of the program iterative optimization. , achieving excellent performance of "wind moving but car quiet" under high-speed conditions.
Power/chassis tuning
In terms of chassis tuning, the new third-generation Roewe RX5/super hybrid eRX5 is based on comprehensive technical solution support, bringing a more high-end experience, calmly coping with ditches and bumps, and giving users a "magic carpet" like walking on flat ground. texture.
Extremely tough suspension structure, body second-stage 8~15Hz frequency band design: filtering the bumps caused by the fine road surface, even when facing the bumpy road surface, it can "walk on flat ground". In addition, in terms of vehicle stability design, the development team has undergone many adjustments and tests to effectively reduce the roll and pitch of the vehicle body during braking, turning, and acceleration, giving users a comfortable experience.
New Car Styling Design Review
In terms of appearance, the new car adopts the popular large-size front grille, officially called the "Phoenix Feather Grille". The matrix LED headlights on both sides are connected by through-type light strips, and assist with the lower The dot matrix light source looks very eye-catching as a whole. It is worth mentioning that the new car has moved the Roewe brand LOGO from the center grille to the front edge of the engine compartment cover, and combined with the internal phoenix feather elements has enhanced the sense of luxury.
adopts a smooth waistline design on the side of the body, which not only presents a unique light and shadow effect on the side, but also adds to the dynamic beauty of the entire vehicle. The rear of the car also uses a through-type taillight set, which ends in a C-shape on both sides. It is matched with the Roewe brand LOGO at the top and a two-outlet exhaust layout on both sides at the bottom, giving a prominent visual layering. It is reported that the new car will provide three sizes of rims to choose from, with the maximum being 20 inches.
In terms of dimensions, the length, width and height of the new car are 4655/1890/1655 (1664) mm respectively, and the wheelbase is 2765mm, which is 57mm longer than the wheelbase of the current model. In terms of configuration, the new car is expected to be equipped with the new Luoshen intelligent cockpit system and L2+ level automatic driving assistance system.
In terms of power, the new third-generation Roewe RX5 fuel version will be equipped with SAIC Blue Core Power GS61 1.5T VTGI in-cylinder direct injection turbocharged engine and 7-speed dual-clutch gearbox . There will also be a hybrid version and more A variety of power configurations to meet more consumer needs. In terms of the
launch schedule, as early as June 11, blind ordering of the two new cars has officially started. The blind ordering price starts at 120,000 yuan. According to previous plans, the car is expected to be launched in the second half of the year. (Photo/Text/Photo: Pacific Automotive Network Yang Jiazhen)
