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[YesAuto Four-wheel drive detailed] After the Dragon Boat Festival holiday, our “Fun Four-wheel Drive” column met you again. In the last issue, we explained the four-wheel drive system of Acura. In this issue, let’s take a look at Honda’s four-wheel drive system. Today’s test cars are the new CR-V from Dongfeng Honda and the Binzhi from Guangqi Honda. These two SUVs are also hot-selling models in the domestic joint venture compact SUV and joint venture small SUV market. Since Dongfeng Honda XR-V currently only has a two-wheel drive version, it regrettably missed this test. As two urban SUVs, what are their four-wheel drive performances? Now, please walk into the testing ground with us to take a look at their performance.

Model introduction: Dongfeng Honda's new CR-V

Honda CR-V 2015 2.4L 4WD Premium Edition

Model Homepage| Parameters Configuration| Picture| Word of Mouth| Model Quotation
Manufacturer's guide price

249,800

As one of the veterans of compact SUVs, Dongfeng Honda CR-V is a household name in China. Since the domestically produced second-generation model was launched in 2004, it has always maintained good sales in the same class. The new CR-V we tested today is already a later version of its fourth generation. The car has been officially launched during the Shanghai Auto Show this year. The price is 179,800 to 249,800 yuan. There are three four-wheel drive models. Today we The test is the top model 2015 2.4L four-wheel drive premium version. This time we are only testing its four-wheel drive performance, so if you want to learn more about other aspects of this car, you can read the previous article: Qi Shortboard 2015 Dongfeng Honda CR-V Performance Test”.

Four-wheel drive structure:

From the structural point of view, the new Honda CR-V adopts a timely four-wheel drive system called Real Time AWD system. This system relies on an electric hydraulic oil pump as the power source for the entire four-wheel drive system. Combine the power output of the engine and the selection of gears to determine whether to turn on the Real Time AWD system.

When needed, the electronic system controls the oil pump to push the multi-disc clutch type limited-slip differential to provide power to the rear axle, thereby realizing electronically controlled four-wheel drive. In the four-wheel drive state, this system can achieve a maximum power distribution of 50:50 between the front and rear axles. In addition, the car is also equipped with a body stability control system, which will help the vehicle to complete its rescue.

Four-wheel drive performance:

Power distribution test between shafts

In the power distribution test between the front and rear axles, we let the two front wheels and two rear wheels of the vehicle lose their adhesion, respectively, to test whether the vehicle can get out of trouble with the other two wheels with adhesion. The performance of the new CR-V in this test is relatively easy. When the two rear wheels lose their adhesion, the vehicle can get out of trouble faster. When the two front wheels lose their adhesion, the wheels that lose their adhesion will idle for a short time and then the torque will be distributed to the rear wheels with adhesion to get out of the trouble smoothly.

Cross axis test

Next, we conducted a cross-shaft test. This test is relatively harsh. However, as an urban SUV, the new CR-V still performs very easily. When the front and rear wheels lose adhesion, the electronic assistance system quickly intervenes. Brake the slippery wheels and distribute the torque reasonably, so as to get out of trouble easily.

Single wheel landing test

In the most difficult power distribution test between wheels, when the new CR-V loses adhesion on three wheels at the same time, we can see that the electronic assistance system is braking the rear wheel that has lost adhesion, but no matter what Oil still couldn't get the vehicle out of the trap with one round of force, and ultimately failed the test.

Advantages: Honda’s new CR-V adopts a timely four-wheel drive system. During daily driving, the vehicle can automatically adjust and distribute power. At the same time, the electronic assistance system intervenes more quickly. All of these allow the new car to quickly respond when 1-2 wheels slip. Braking and reasonable distribution of torque.

Disadvantages: The disadvantage of the timely four-wheel drive is that it is unable to divide the torque between the wheels, so even with a good electronic assistance system, it is “difficult for a clever woman to cook without rice.”

Model introduction: Guangqi Honda Binzhi

Binzhi 2015 1.8L CVT four-wheel drive flagship

Model Homepage| Parameters Configuration| Picture| Word of Mouth| Model Quotation
Manufacturer's guide price

18.98 million

Binzhi is the first small SUV launched by Guangqi Honda. Its fashionable and dynamic shape has attracted the hearts of many young consumers. Among the six models with two displacements currently on sale, only the flagship 1.8L CVT four-wheel drive flagship model is equipped with four-wheel drive system, and its price is 189,800 yuan. Our editor has tested this model before (click here to view the test article), and today we will talk about the four-wheel drive performance of this model.

Four-wheel drive structure:

From the structural point of view, Honda Binzhi is equipped with the same Real Time AWD system as the new CR-V. We have already introduced this timely four-wheel drive system. It is mainly driven by an electric hydraulic oil pump to drive a multi-plate clutch limited slip differential. , To transmit power to the rear axle to achieve four-wheel drive. At the same time, this four-wheel drive model of Binzhi is also equipped with an electronic body stability control system, which has a certain wheel-to-wheel limited slip capability.

Four-wheel drive performance:

Power distribution test between shafts

Although Binzhi is a full lap smaller than the new CR-V, its four-wheel drive system is exactly the same as the new CR-V. In the power distribution test between the front and rear axles, when the front wheels of Binzhi lose adhesion, After the wheels that have lost their adhesion, the torque is distributed to the rear wheels with adhesion, so that the rear wheels can be used to get the vehicle out of trouble. When the two rear wheels lose their adhesion, because Binzhi uses the front-wheel drive platform to build, the vehicle can rely on the two front wheels to get out of trouble quickly.

Cross axis test

Next, we performed a more demanding cross axle. When Binzhi loses adhesion on the front and rear wheels, the electronic assistance system has no obvious braking effect on the wheels that have lost adhesion. However, when Binzhi relies on deep stepping on the accelerator. The power of the other two wheels will get themselves out of trouble.

Finally, we conducted a power distribution test between wheels. In this most difficult test, Binzhi was unable to limit the slipping wheels, which caused power loss. When the three wheels lose their adhesion at the same time, no matter whether the single front wheel has the adhesion or the single side rear wheel has the adhesion, it will not be able to make it out of trouble, and ultimately fail.

At the same time, when the oil continues to be supplied, the vehicle will start the AWD protection system because the wheels are idling for a long time, and automatically cut off the multi-disc clutch type limited slip differential. At the same time, the ESC will also enter the protection state, so the idling front wheels cannot be locked. only.

Advantages: timely four-wheel drive can improve the stability of the vehicle in daily driving, and at the same time can automatically adjust the distribution of power under special circumstances.

Disadvantages: The timely four-wheel drive system equipped by Binzhi cannot distribute torque between the wheels, so it cannot get out of trouble when the three wheels lose adhesion at the same time. In addition, the intervention effect of Binzhi's electronic assistance system is not obvious.

Summary

The two Honda models we tested use the same timely four-wheel drive system, which is destined to be unable to perform very well in off-road performance. In addition, we also found that in the same test, the electronic assistance system played a certain role in helping the vehicle to get out of trouble.

On the whole, Honda's new CR-V and Binzhi are more suitable for urban travel, which is more in line with the positioning of the two models themselves. The unpaved road is a place that is not suitable for them, and the two cars are playing the stage when the family is able to walk easily on the city roads.