Cross-slope derailleur is an important driving technique that every driver needs to master, especially when driving on mountainous terrain or steep roads.
According to statistics from the Vietnam Register, about 15% of new driving-related accidents occur when the derailleur is on a slope.
This technique requires smooth coordination between basic operations such as controlling the accelerator pedal, brake pedal, clutch pedal (for manual transmission vehicles), and gear lever. If done properly, it will help the vehicle start safely on an inclined surface without slipping backwards, while also protecting the vehicle's transmission system.
Factors to pay attention to include the slope of the road surface, surface condition (dry, wet, slippery), vehicle weight, and engine power. In addition, mastering this technique also helps drivers be more confident when driving in difficult situations, contributing to improving traffic safety. Below are the 4 most effective methods to safely and professionally perform cross-hill derailleurs:
Handbrake, also known as emergency brake, is the method most favored by many drivers due to its high efficiency and safety. This is especially useful for new drivers when they need to park their car on a steep hill. The procedure is as follows:
Advantages: This method helps prevent the car from drifting backwards, creating confidence for new drivers.
This method requires smooth coordination between the accelerator and clutch pedal:
Note: This method requires delicate controls and may be difficult for new drivers.
This is an advanced technique, not popular with everyone because it depends on the vehicle design and the size of the driver's feet:
Advantage: This technique allows simultaneous control of both the brake and the throttle, making the derailleur smoother.
This technique should only be applied when stopping on a slope for a short time:
Warning: Applying this technique for a long time can cause rapid cone wear due to high friction and heat generation.
Note:
Hilly derailleurs are an important skill that every driver needs to master. By applying the above methods and practicing regularly, you will quickly improve this skill, ensuring safety for yourself and other road users. Remember, each method has its own pros and cons, so choose the one that works best for you and practice until you master it.
A hill-side derailleur is a technique for starting and moving a vehicle from a stationary state on a sloping road surface. This skill is very important because it helps ensure safety when driving in hilly terrain or steep streets. According to statistics, about 15% of accidents involving new drivers occur when the derailleur is on a slope.
The method of using the handbrake is most recommended for new drivers because it is safe and easy to do. About 80% of driving schools in Vietnam instruct students to use this method first.
According to the regulations of the Vietnam Register, the time allowed to complete a steep hill is 30 seconds.
When putting the brakes on, the vehicle must not move back more than 50cm from the original position to ensure safety.
After successful de-padding, the vehicle speed must not exceed 24 km/h for classes B and D.
To practice safely, choose a slope with a slope of about 5-10 degrees, with little traffic. Start with a low incline and gradually increase. Always have an instructor accompany you during the workout.
Overuse of taper tightening techniques can cause rapid cone wear due to high friction and heat generation. According to experts, using this technique continuously for 5 minutes can reduce the life of the clutch by up to 20%.
There is a significant difference. Automatic transmission cars are often easier to use on steep slopes because they do not need to operate the clutch. However, accelerator control technique is still very important. About 85% of modern automatic cars are equipped with a hill start assist system. See more automatic transmission video tutorial The safest, simplest way to share on the website.
If the vehicle drifts, quickly step on the brakes and pull the handbrake. Then, restart the derailleur process from the beginning. Statistics show that 90% of cases where the vehicle drifts when the brake is on are due to the driver not controlling well the timing of releasing the brake and stepping on the accelerator.
Common errors include:
When the road is slippery, use the handbrake method and increase the brake holding time by 1-2 seconds. Step on the accelerator more gently than usual, about 70% of the normal level. If so, activate the vehicle's driving mode for slippery roads.
To maintain your skills, practice at least once a month, even if you are an experienced driver. Participate in training courses to improve safe driving skills, including 20-30% of the time spent on hill-crossing derailleur techniques and handling emergency situations on steep roads.
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