[YesAuto Test Drive] If cars have changed people's lifestyles, then the luxury SUV category has changed the way people enjoy life. They work hard in the office on weekdays and drive to the suburbs to enjoy life on holidays. Since the BMW X3 opened up the luxury compact SUV market and tasted the sweetness, major brands began to look at the compact SUV market and launched their own models to compete for this piece of fat. Volvo, known for its safety, is certainly not to be outdone. It launched its first luxury compact SUV, the XC60, a new car with many new design elements while maintaining the inherent characteristics of the Volvo brand. Today our test drive activity is divided into three projects, namely the urban automatic braking system experience, the light off-road experience and the straight-line acceleration experience.
Note: Since Mr. Liang Wei has written an article about XC60 performance test and experience earlier, I will skip the static experience and appearance part. If you are interested in the appearance, configuration and experience of XC60, you can click link below:
● City Safety city automatic brake system
City Safety city automatic braking system-Volvo Cars is the first car manufacturer in the world to use this high-tech safety function as standard equipment. It is understood that this function can solve low-speed rear-end collisions, which account for more than 75% of urban traffic accidents. This system is also the one configuration that attracts me the most. This system detects the distance to the object in front of the front windshield sensor. If the system finds that the distance between the vehicle and the object in front of the vehicle is rapidly decreasing, the driver does not When taking the initiative to brake, this system will immediately intervene and take the initiative to brake.
When the vehicle speed is lower than 30km/h and crashes into the front vehicle, the automatic braking system will use all the braking force to stop the car steadily before the collision, but at this time it is also necessary to add a foot brake, because the brake system only It will actively brake for about 1.5 seconds. If the driver does not actively brake at this time, the vehicle will continue to move forward; when the vehicle speed is higher than 30km/h, in order to prevent rear-end collisions of vehicles behind, the automatic braking system will not use 100 % Of the braking force stops the car, but takes an active deceleration action, so that damage can be effectively reduced even if it hits the vehicle in front.
It's hard to explain the power of this system just by words, or if you take a moment to watch the video below, it will be more straightforward.
This active safety configuration is especially suitable for large and medium-sized cities with traffic jams. Long-term jams will distract the driver. Having this function can avoid rear-end collisions in this situation. As for driving at high speeds, although this system does not use all the braking power to stop the car, it can avoid rear-end collisions. If you can be sure that there is no car following right at this time, you also need to brake actively. At this time, the city's automatic braking system serves as a reminder.
● Light off-road experience
Note: XC60 uses the third-generation Haldex four-wheel drive system produced by Haldex. This system consists of two parts: a central transfer device with a multi-disc clutch structure and an LSD limited-slip differential located on the rear axle. In addition, the system also works with ABS and stability systems at the same time, which is what we often call electronic brake assist, and this system is completely controlled by a computer, without any manual operation, and there is no four-wheel drive system in the car. Buttons for control.
The cross-country steel frame hump bridge and unilateral bridge we used to test the XC60 off-road performance. The steel plate of the hump bridge has a low friction coefficient, so the adhesion is not very high. Although not a real off-road experience, it can also be used as a reference.
Slowly step on the accelerator, and the body starts to slowly climb up the hump bridge. At this time, the center of gravity of the vehicle begins to move backward, and the adhesion of the front wheels begins to decrease. At this time, the AWD all-wheel drive system distributes more torque to stronger adhesion. The rear wheel, which gets a larger torque, pushes the XC60 to continue climbing to the top of the peak. With the support of the T6 engine and AWD, it is not difficult for the XC60 to climb the cross-country steel hump.
After reaching the peak, press the HDC steep descent system start button, and put the gear to the first gear of manual mode, then you can remove your foot from the pedal, at this time HDC starts to work, and the speed is controlled at 10km/ Within h, the vehicle can slowly descend to the ground at this time.
When crossing a unilateral bridge, the XC60 will inevitably have a wheel suspended. At this time, the suspended wheel will spin idly. After a short idle, even if you step on the accelerator again, the suspended wheel seems to be braked. After turning intermittently, the vehicle passed the unilateral bridge smoothly. The reason is that the LSD limited-slip differential on the rear axle plays a key role. Because one wheel is suspended and idling, the LSD limited-slip differential transfers the torque to the other wheel. And at this time, the stability system will also perform braking intervention to help the vehicle continue to drive.
I can only say that the above experience is a light off-road simulation test. Although the XC60 can pass easily, it does not mean that the XC60 has strong off-road performance. But for an urban SUV to have such strength is already good, at least it is not a problem to go to the outskirts to play.
● T6 engine is powerful
XC60 has a powerful turbocharged engine, this engine uses Twin Scroll technology, when the engine speed reaches 5600rpm, it can output a maximum power of 285 horsepower (210 kilowatts). The engine speed can output a maximum torque of 400N·m starting from 1500rpm, and the maximum torque range is between 1500-4800rpm. The wide torque platform allows the XC60 to have excellent power output at low speed or high speed.
The XC60 is equipped with a Haldex four-wheel drive system, and the torque distribution is biased towards the front drive during daily driving. When accelerating rapidly, because the T6 turbocharged engine can output a maximum torque of 400N·m from 1500 rpm, the intervention of the turbo is earlier. If the XC60 is still leaning forward at this time, its front will naturally rise. The center of gravity of the car moves back, and the adhesion of the front wheels decreases as the pressure decreases. This will cause a slippery start. At this time, the intervention of the AWD four-wheel drive system is just right, transferring most of the torque to the rear wheels with greater adhesion. At this time, you will also obviously feel that the rear wheels will have greater driving force. Although the process of rapid acceleration is obviously slow, it helps the vehicle to start smoothly and effectively avoids power loss.
Strong power and AWD four-drive system are the prerequisites for the XC60 to have excellent road performance. The biggest advantage of the turbocharged engine with dual swirl technology is that it starts fast, and the continuous peak torque output allows you to feel full and continuous at all times. power. When the accelerator is stepped down deeply, after a momentary delay, the sound of the engine also rises loudly. At this time, the turbo intervenes obviously, and the feeling of pushing the back follows. As long as you are still stepping on the accelerator, the power of the engine will still give you a strong power experience. In order to ensure a tighter power connection, the gearbox will upshift around 2000 rpm. Although the 285-horsepower T6 engine of the XC60 does not give you a catapult start feeling, when the turbo is involved, the wide torque platform allows you to continue to feel plenty of power.
In D mode, the XC60's performance can already meet the needs of daily use, the throttle response is fast enough, and the power output is unreserved. The smoothness of the 6-speed automated manual gearbox it is equipped with has a good performance. Although there is no S gear, you only need to gently push the gear to the right and the gearbox will switch to manual mode. At this time, you also You can feel the driving control experience brought by XC60.
This 6-speed automated manual gearbox is currently the most widely used automatic gearbox of Volvo’s models. It is quite compatible with the T6 turbocharged engine. You will not notice that it brings too much when you use it in D-speed mode. The frustration and comfort needs are adequately guaranteed. It's just that when you switch the gear to manual mode, you will feel a slight frustration when you change gears. If you want to have a tighter power connection in manual mode, you must increase the speed to more than 2000 rpm, and the throttle response will be more positive at this time.
We have already made it clear from the above analysis that the XC60 is a luxury compact SUV that is more inclined to road driving. It can definitely meet your needs on highways, mixed road conditions and light off-road roads. If you insist on climbing and wading, then I think XC60 is really not for you. However, I think the users who choose Volvo XC60 have connotation and will never use it to climb mountains, wading, or crossing mud pits. Therefore, I can only suggest that friends who like to play off-road should buy pure off-road vehicles, but I I also believe that they will never let you feel the comfort and safety of Volvo XC60.
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