[YesAuto four-wheel drive detailed] In this issue of “Fun Four-wheel Drive”, we will introduce you two four-wheel drive SUV models sold by Ford in China, including Changan Ford Escape and imported Ford Explorer. Both vehicles belong to Ford's urban SUVs, which are more focused on road driving. So what is their four-wheel drive performance? You will find the answer below.
Note: Ford Edge 2.0T adopts front-drive structure for the entire series, and only the 3.5-liter V6 engine is a four-wheel drive model. Since the sharp 3.5-liter Zunrui car source is less, we will add the sharp afterwards. Detailed content of the four-wheel drive system.
|Ford SUV body structure and four-wheel drive form at a glance|
|Vendor||Model||Body structure||Four-wheel drive|
|Changan Ford||Wing tiger||Load-bearing||Timely four-wheel drive|
|Ford (import)||Sharp world||Load-bearing||Timely four-wheel drive|
|Ford (import)||Explorer||Load-bearing||Timely four-wheel drive|
The Ford SUV models currently on sale in China include Changan Ford Escape, Ford (imported) Sharp and Explorer. All three models use a load-bearing body and a timely four-wheel drive system that tends to drive on urban roads. Among them, the Escape and Sharp are divided into two-wheel drive and four-wheel drive models, while all Ford Explorer series are four-wheel drive models.
● Changan Ford Escape
Maverick 2013 2.0L GTDi four-wheel drive premium model
The Escape is the first SUV model produced by Changan Ford. Since its launch in 2013, it has become the most enthusiastic and topical SUV model in the domestic market. Its strengths in all aspects are balanced, and its rich configuration can be said to be a wing. Tiger’s biggest selling point. The design of the Ford Escape is derived from the Ford Vertrek concept car. Compared with most domestic Ford models sold in China, the Escape is one of the few models that has not been “Martinized”. Positioned as a compact urban SUV, the Maverick has a huge difference in design from its brother Ruijie. In the Maverick, you can't find the shadow of the American SUV like Ruijie.
There are four Escape four-wheel drive models currently on sale, namely 1.6L GTDi four-wheel drive elite, 2.0L GTDi four-wheel drive elite, 2.0L GTDi four-wheel drive sports and 2.0L GTDi four-wheel drive noble, four models The price range is 239,800 yuan to 275,800 yuan. Among them, the 1.6L GTDi four-wheel drive elite is equipped with a 177-horsepower 1.6-liter four-cylinder turbocharged engine, and the remaining three models are equipped with a 242-horsepower 2.0-liter four-cylinder turbocharged engine. Our test car uses the Escape 2.0L GTDi four-wheel drive noble type.
The Escape's four-wheel drive system is a central multi-disc limited slip differential, front and rear axle open differentials, and four-wheel electronic auxiliary braking system, which is also a very common timely four-wheel drive system. Under normal circumstances, the front axle can obtain 50%-100% of the power, while the rear axle can be allocated up to 50% of the power. The electronic auxiliary braking system of the wheels is used to achieve the limited slip between the wheels. In addition, the Escape's four-wheel drive system adopts a “automatic” mode, and the driver cannot adjust the four-wheel drive system in the car. Although the driver could not actively adjust the Escape's four-wheel drive mode, under the intervention of the electronic auxiliary braking system, the Escape successfully passed the cross-axis test.
Cross axis test:
The Escape's timely four-wheel drive system allows the front wheels to obtain 50% to 100% of the power, and the rear wheels can only obtain 50% of the power at most. In the test of three pulley blocks, although the electronic auxiliary brake system strives to suppress the idling wheels, However, wheels with adhesion can never get enough power. Whether there is only one front wheel or only one rear wheel with adhesion, the Maverick failed the test. This is a normal result for the Maverick, which is positioned as an urban SUV. .
Single-round landing test:
Advantages: The four-wheel drive has a simple structure and has an electronic auxiliary braking system.
Disadvantages: No four-wheel drive mode adjustment function, limited slip between wheels is not obvious, and the ability to escape difficulties is limited.
● Ford (import) Explorer
Explorer 2013 3.5L exclusive type
As the only medium and large SUV introduced by Ford to the Chinese market, the Ford Explorer and Volvo XC90 are derived from the same platform. The Explorer has won the title of the best-selling SUV in the United States for 15 consecutive years, and its global cumulative sales have reached nearly 7 million units. The current Ford Explorer is the fifth-generation model. With its large body size and rich configuration, the Explorer is also considered to be the leader among non-mainstream medium and large SUVs.
Ford Explorer has a strong American SUV design style. The low-end model uses 18-inch wheels and the tire size is 245/60 R18, while the high-end model uses 20-inch petal-shaped wheels, 255/50 R20, which also allows the explorer. Appears more burly. As a medium and large SUV, the Ford Explorer has a minimum ground clearance of 193mm, and the approach and departure angles are only 21.7° and 21.4°. Such data also makes the explorer unable to handle overly complex road conditions.
At present, the Ford Explorer on sale in China is only 3.5L Premium and 3.5L Premium, priced at 489,800 yuan and 538,800 yuan respectively. The two models are equipped with a 3.5-liter V6 naturally aspirated engine with a maximum power of 291 horsepower. , The maximum torque is 354N·m. This time our test car uses the Explorer 3.5L exclusive type.
Ford Explorer, like most SUVs on the market, uses a multi-disc clutch-type limited-slip differential in a timely four-wheel drive system, and is equipped with four-wheel electronic auxiliary braking. Although its four-wheel drive system has a simple structure, Ford has equipped the explorer with a real-time road management system. The trip computer will adjust the engine power output, throttle response, electronic stability control system and gearbox shift logic according to different road conditions.
Different from the “full automatic” real-time four-wheel drive system of the Escape, Ford has equipped the explorer with a four-wheel drive mode control knob. The driver can perform as needed in normal mode, mud mode, sand mode and snow mode. Switch.
Normal mode: Torque is biased towards the front wheels, and power is output to the rear wheels as needed to increase vehicle performance.
Mud mode: The throttle response is slower, the gearbox restricts upshifts and reduces the sensitivity of the body stability control system, so that the vehicle maintains a continuous power output in order to pass muddy roads.
Sand mode: The engine outputs the maximum torque, and the gearbox is in a low-speed gear state for as long as possible, so that the wheels can keep rotating at a high speed and pass the sandy road smoothly.
Snow mode: While the throttle response is slower, the gearbox upshifts more aggressively, and the sensitivity of the traction control system is greatly improved, thereby limiting wheel slip as much as possible.
The explorer successfully passed the first two tests. In the third test, the explorer still got out of trouble after a lot of hard work. For an urban SUV, the explorer performed quite well. However, it should be noted that its multi-plate clutch limited-slip differential has overheated in the last test, which means that the explorer is not capable of high-intensity off-road conditions.
Single-round landing test:
Advantages: The four-wheel drive structure is simple; the whole system has an electronic auxiliary braking system; it can actively control the power distribution of the front and rear axles; it has a four-wheel drive mode adjustment knob; it has a steep slope descent function.
Disadvantages: Although successfully passed the three tests, the multi-disc clutch type limited slip differential may overheat in high-intensity off-road, which shows that explorers are not suitable for conquering too complicated road conditions.
to sum up:
Ford's three SUV models currently on sale all use a simple structured timely four-wheel drive system. Among them, the Escape uses intelligent timely four-wheel drive, and the driver cannot adjust the four-wheel drive mode. Like most SUV models, the Maverick can complete the cross-axis test, but in the single-wheel landing test, no matter whether the single front wheel or the rear wheel has adhesion, even if the electronic auxiliary braking system tries hard to intervene, the slip between the wheels is limited. It is not obvious, so that the Escape cannot get out of trouble smoothly, and the rich configuration is its biggest selling point. As a medium and large urban SUV owned by Ford, although the Explorer passed all the tests, the long-term and high-intensity work caused the multi-plate clutch limited slip differential to overheat in the single-wheel landing test. It shows that explorers who adopt a load-bearing body structure and a timely four-wheel drive system are more suitable for driving in the city and occasionally sprinkle in the countryside. (Picture: Auto House Liu Yuxin, Zhang Yuda, Yu Han; Video Clip: Ji Zhenjia; Text: Li Haopeng)
[YesAuto four-wheel drive detailed] In the previous “Fun Four-wheel Drive”, we introduced the four-wheel drive capability test of Changan Ford Escape and imported Ford Explorer. The results are different. The test level of Escape in single-wheel landing Li was defeated, and the explorer succeeded in clearing the level. In this issue, we are bringing a medium-sized SUV between the wing tiger and the explorer-Changan Ford Sharp. We will wait and see how its four-wheel drive capability can reach the level of an explorer.
Sharp world 2015 2.0T GTDi four-wheel drive Hao Rui
At present, Changan Ford Ruijie has two power configurations of 2.0T and 2.7T, and the price range is 249,800 to 429,800. What we are testing today is one of the 2015 2.0T GTDi four-wheel drive Hao Rui models, which uses an intelligent AWD four-wheel drive system, which is a timely four-wheel drive system.
Sharp uses an electronically controlled multi-disc clutch type central limited-slip differential and an open rear axle differential, and is equipped with four-wheel electronic auxiliary braking.
● Power distribution test between shafts
First, we simulated the loss of grip on the two front wheels or the two rear wheels, namely the front and rear axle power distribution test. The test method is to place the two pulley blocks on the two front wheels or rear wheels respectively to see if they can pass smoothly.
Unsurprisingly, like the test results of the Maverick and Explorer, the power distribution test between the axles is a piece of cake for Sharp, and Sharp can pass it smoothly. In this process, the central limited-slip differential and wheel electronic braking system of the vehicle have made great achievements. For example, when the two front wheels lose adhesion, the vehicle will brake the front wheels, and the multi-disc clutch-type central limiter The slip differential will be locked immediately, and the power output by the engine will be quickly transmitted to the two rear wheels with adhesion, making it easy to get out of trouble.
● Cross axis test
Cross-axle working conditions often occur in off-road sections, which is not a problem for models with wheel electronic assisted braking. When driving onto the pulley block, the wheel on one side slipped, but the ESC system of the vehicle quickly intervened to brake the slippery wheel, and the power was transmitted to the other wheel with adhesion, so that the sharp boundary also went through the barrier smoothly. This pass.
● Single wheel landing test
When the one-sided rear wheel touched the ground, the sharp boundary did not pass, but when the one-sided front wheel touched the ground, the sharp boundary passed smoothly after a short slip. In the process, it can be seen that Ford Sharp's electronic auxiliary braking system is very hard, giving effective braking when the wheels are slipping, and relative to the rear of the car, the heavier factor of the front also allows the unilateral front wheels to gain More adhesion, so that the sharp boundary can pass smoothly when one side of the front wheel hits the ground. In short, the sharp boundary performed very well in the difficult one-sided front wheel landing test.
to sum up:
The same as the size positioning of the model, Ford Sharp's four-wheel drive test results are also between that of the Maverick or the Explorer. It has passed the inter-axle power distribution test, the cross-axle test, and the single-wheel front wheel landing test, but it was defeated by the single-sided rear wheel. Landing test level. But for a sharp world that is positioned as a mid-size SUV in the city, such a result is also quite good. The combination of the common multi-disc clutch type central limited-slip differential, open rear axle differential and four-wheel electronic auxiliary braking function played a vital role in the test. Although the sharp world has shown a certain degree of off-road relief ability in the test, but in terms of its positioning, the urban road section may be its real battlefield. (Xia Zhimeng, home of the car)